Background: Protection against hepatitis B virus (HBV) is based on the presence of antibodies against hepatitis B surface antigen (HBsAg). Vaccination of newborns is the most effective means of prevention. This study aimed to evaluate the frequency of anti-HBs antibody (anti-HBsAb), anti-HB core Ab (anti-HBcAb), HBsAg, and HBV DNA among university students in Fars province, Southern Iran. Materials and Methods: In this cross-sectional study, 272 students of Shiraz University of Medical Sciences, were enrolled. Venous blood (5 mL) was collected from each participant and centrifuged; the sera were stored at −20°C until use. Anti-HBsAb, Anti-HBcAb, and HBsAg were measured using a commercial enzyme-linked immunosorbent assay kit. HBV DNA load was also measured by a real-time polymerase chain reaction. Results: The mean age of the participants was 19 ± 1 years. There were 171 (62.9%) females and 101 (37.1%) males. Anti-HBsAb at a protective level (>10 mIU/mL) were detected in the sera of 104 (38.5%) of the cases. Of the anti-HBsAb seropositive participants, 82 were female and 22 were male; the difference between the gender and seropositivity to anti-HBsAb was statistically significant (P = 0.001, odds ratio: 3.3, 95% confidence interval = 1.89–5.79). Anti-HBcAb was detected in only one participant that was negative for both HBsAg and HBV DNA. Conclusion: Findings of the current study show that more than half of the students do not have a protective level of anti-HBsAb and might be susceptible to HBV infection, indicating the necessity of checking the level of anti-HBsAb as well as a booster dose in high-risk groups.

Background: Fecal incontinence is a common disorder in old age; however, it may not threaten life, but it can cause morbidity and many problems. Sacral nerve stimulation (SNS) is a minimally invasive surgical procedure performed by chronic electrical stimulation of the nerves in the sacral plexus through a lead implanted at the S3 foramen. This study aimed to evaluate the outcomes of SNS in Shiraz. Materials and Methods: Data from patients who underwent implantation of an SNS device from 2012 to 2018 were reviewed in Shiraz. Thirty patients who had incontinence were evaluated by a committee. Pre- and postoperative assessments of the severity of incontinence were performed using Wexner Incontinence Score. Statistical analysis was performed using paired t-test. Results: Twenty-seven patients proceeded to insertion in the temporary SNS, and of these, 16 were elected to have a permanent SNS. Finally, seven patients were satisfied with their treatment. There was a significant reduction in the pre- and post-SNS Wexner Incontinence Scores from a median of 15–10, respectively (P < 0.05). Conclusion: In our study, 16 patients underwent SNS protocol, and 43.7% of them showed a good response and recovered. It is recommended as a method for the treatment of fecal incontinence. Permanent SNS is effective, showing a significant improvement in fecal incontinence scores.

Background: The complications in thyroid surgery have been reported variable in literature. The aim of this study was to evaluate the early and late (3 months after surgery) complication rates of thyroidectomy in a cohort of patients undergoing thyroid surgery at two hospitals of Isfahan University of Medical Science, Iran. Materials and Methods: This study included 204 patients who candidates for thyroidectomy presenting at Medical Educational Centers of Al-Zahra and Kashani hospitals in Isfahan between March 2016 and March 2017. Clinical data are collected for all patients by continuous enrollment. The patients examined before and after thyroid surgery and the findings were recorded. Results: The highest prevalence of thyroidectomy was in women (81.9%). The most frequent thyroid surgery was total thyroidectomy and the most common indication for thyroid surgery was suspicious fine-needle aspiration for thyroid malignancy. Hypocalcemia was the most common complication with a frequency of 54.4%. The odds ratios for early complications were 2.375 and 2.542 for intermediate- and low-volume surgeons, respectively, compared to high-volume surgeons. Conclusions: According to the results of this study, the high level of surgeon's skill is effective to reduce the likelihood of late and early complications; furthermore, the chance of late complications increases with age.

Background: The aim of this study was to investigate the effect of the incise drape (ID) on surgical wound bacterial contamination during lumbar spine surgical procedures in treatment group (with ID) and control group (without ID). Materials and Methods: The present study was conducted on 88 patients who were a candidate for lumbar spine surgery. The patients were randomly assigned to one of the two groups, treatment and control. The ID was only used in the treatment group. The surgical wound sampling for bacterial culture was done in two steps, immediately after surgical incision (IASI) and immediately prior to the surgical wound closure (IPSWC). The samples were then sent to the laboratory. Results: The mean total bacterial count of the surgical wound in the stage IASI was not significantly different between treatment and control groups (0.09 vs. 0.02, P = 0.31). However, this means in the stage IPSWC in treatment group was significantly more than the control group (18.6 vs. 0.41, P = 0.04). The frequency distribution of Staphylococcus aureus (25% vs. 3%, P = 0.02) and Staphylococcus epidermidis (36.4% vs. 9.1%, P = 0.002) was significantly higher in the treatment group compared with control group in the stage IPSWC. Conclusion: The results suggest that the use of ID is unable to reduce surgical wound bacterial contamination in clean lumbar spine surgery. Therefore, based on the results obtained in our study, the application of ID is not recommended as an essential action for the prevention of surgical wound contamination.

Background: A period of starvation after colorectal anastomosis to permit for resolution of the clinical evidence of ileus has been an unchallenged surgical dogma until recent years. We intended to determine the safety and feasibility of an unconventional postoperative oral intake protocol in patients experiencing colorectal anastomosis. Materials and Methods: Between 2013 and 2015, sixty consecutive patients underwent colorectal anastomosis and they were randomized into two groups. The early feeding group began fluids on the first postoperative day while the regular feeding group was managed in the traditional way - nothing by mouth until the complete resolution of ileus. Results: The majority of patients (93%) tolerated the early feeding. The times to first passage of flatus (2.66 ± 0.71 days vs. 3.9 ± 0.071 days) and stool (3.9 ± 0.92 days vs. 5.4 ± 0.77 days) were significantly quicker in early feeding group. Hospital stay was also significantly shorter in the early feeding group (4 ± 0.64 days vs. 6.1 ± 0.84 days). Anastomosis leakage and abscess formation were not seen in early feeding group. The patient's satisfaction (visual analog scale) in the early feeding group was higher than delayed feeding group (8.56 ± 1.16 vs. 7.06 ± 1.59, P < 0.001). Conclusions: Early oral feeding after colorectal surgeries is safe and tolerated by the majority of patients.

Background: This study was carried out to compare mucociliary function (MCF) of nasal cavity before and after septorhinoplasty surgery by saccharin test. Materials and Methods: This study was carried out on 70 patients who needed septorhinoplasty surgery in Kashani and Alzahra Hospital during 2013–2014 to measure MCF. Saccharin test was performed on the patients before surgery and on three more intervals 1 day, 1 week, and on month after ward and the readings were recorded. Saccharin test is performed by placing saccharin granules on the anterior part of inferior turbinate and the time the patient feels the sweet taste is recorded the normal range is below 30 min. Results: Mean of test for each time interval was obtained and comparison of measurements was made reading were mean of saccharin test before surgery (7.74 ± 1.65 min) the day after surgery (7.75 ± 1.7 min), on week after surgery (15.04 ± 3.4), and 1 month after surgery (8.49 ± 2.08 min). The readings before surgery did not have statistically significant difference with the readings 1 day after surgery P = 0.99, but comparison of test results at other time intervals were significant (P < 0.001). A relative increase in saccharin test time was seen in a period of 1 month after surgery the rise was more noticeable in the 1^st week compared to 1 month after surgery. Conclusion: This study in the period after septorhinoplasty surgery MCF undergoes slight impairment that gradually progresses to normal values during 1 month after surgery.

Background: Breast cancer is among the most common cancers in the world. Ultrasound evaluations of breast have come into attention as an alternative route. Ultrasound features of benign lesions such as fibroadenoma can be overlapping with those in a malignant tumor. Here, we assessed the reports of breast ultrasound in patients with pathologic diagnosis of fibroadenoma. Materials and Methods: We conducted a cross-sectional study and enrolled female patients with confirmed histologic diagnosis of fibroadenoma. Ultrasound studies were performed on the participants to see which sonographic patterns are more frequent in such lesions. Results: In 92 patients with 40.4 ± 9.2 years of age, all participants were classified as stage 4 on Breast Imaging-Reporting and Data System scale. The mean ± standard deviation of size for the lesions was 167.4 ± 101.4 mm². Upper outer quadrants in the breasts had the most number of lesions. Almost lesions were round with only 2.2% were oval. When assessed for the margin definition, 57.8% were circumscribed. Noncircumscribed masses were reported in 21.7%. About 91.3% of cases were hypoechoic in the ultrasound evaluation. Lobulated masses were in 28.3% of the cases. 8.7% of the masses were spongy whereas 9.8% and 2.2% of them had calcification and heterogenic appearance, respectively. Conclusion: The most frequent features include a hypoechoic mass with a circumscribed border; however, complex presentations that overlap malignant masses are also detectable including noncircumscribed margin, lobulation, presence of a posterior shadow, heterogenicity, and micro calcification.

Background: Acute pelvic inflammatory disease (PID) is a common reason for infertility. This study aimed to evaluate the frequency distribution of endometritis in women with unexplained infertility and comparison with frequency distribution of endometritis in anovulatory infertility to identify the importance of endometritis due to subacute PID evaluation in the case of infertility. Materials and Methods: This case–control study was done on 100 women with unexplained infertility and ovulatory infertility who referred to Shahid Beheshti clinic in 2013 in Isfahan, Iran. They were divided into two groups of unexplained infertility and anovulatory infertility. Endometrial samples were given from all the patients by Pipelle biopsy under sterile conditions, and then prepared samples were sent to the pathology laboratory to evaluate the existence of plasma cells by a pathologist to diagnose endometritis. Results: Frequency distribution of acute PID history among the patients in both groups showed a significant difference (P < 0.05). Prevalence of endometritis in unexplained infertility group was 34% and in anovulatory group was 21% (P < 0.05). Prevalence of vaginitis was 46% in unexplained group and 40% in anovulatory group (P < 0.05), and prevalence of PID was 4% in unexplained infertility group and 0% in anovulatory infertility group. Conclusion: The prevalence of endometritis and vaginitis was more in the unexplained infertility group rather than the anovulatory infertility group that may reveal the importance of endometritis evaluation in the cases of unexplained infertility.

Background: Limited spatial nasal cavity in children, make pediatric dacryocystorhinostomy (DCR) a difficult surgical procedure. We apply a limited approach to pediatric DCR and follow them for their consequences. Materials and Methods: An experimental study was done in pediatric DCR with limited approach (age < 14-year-old). After written consent, with general anesthesia, with nasal endoscopic surgery, lacrimal bone is exposed and extruded. In contrast with routine procedure, ascending process of maxillary sinus reserve; and marsupialization and wide exposure to lacrimal sac was done only by lacrimal bone defect; and cannulation preserve with temporary silicone tube. Results: Between 2006 and 2012, 16 pediatric DCR was done by a unique surgeon in 2 otorhinolaryngologic centers. Before surgery 14 (87.5%) had epiphora, 3 (18.8%) had eye discharge, and 3 (18.8%) had eye sticky eye. Two (12.5%) had history of facial trauma, and 10 (62.5%) had congenital nasolacrimal duct insufficiency. Five (31.3%) had history of dacryocystitis. Patients were followed for 17 ± 9 months. Silicone tube stayed for 4 ± 2.5 months. We could follow 7 patients and minimal improvement or need to revision surgery considered as technical failure. After surgery, 3 patients had no epiphora with complete improvement; 2 had very good improvement with confidence of the patients and parents; 2 cases had unsuccessful surgery in our patients, who needs to another surgery. One of them had several probing and surgery before our endoscopic DCR. Conclusions: Limited approach in endoscopic DCR of pediatrics can be done in noncomplicated patients, with minimal manipulation, more confidence, and acceptable results.

Background: Nontuberculous mycobacteria (NTM) are a group of opportunistic pathogens and these are widely dispersed in water and soil resources. Identification of mycobacteria isolates by conventional methods including biochemical tests, growth rates, colony pigmentation, and presence of acid-fast bacilli is widely used, but these methods are time-consuming, labor-intensive, and may sometimes remain inconclusive. Materials and Methods: The DNA was extracted from NTM cultures using CTAB, Chelex, Chelex + Nonidet P-40, FTA^® Elute card, and boiling The quantity and quality of the DNA extracted via these methods were determined using UV-photometer at 260 and 280 nm, and polymerase chain reaction (PCR) amplification of the heat-shock protein 65 gene with serially diluted DNA samples. Results: The CTAB method showed more positive results at 1:10–1:100,000 at which the DNA amount was substantial. With the Chelex method of DNA extraction, PCR amplification was detected at 1:10 and 1:1000 dilutions. Conclusions: According to the electrophoresis results, the CTAB and Chelex DNA extraction methods were more successful in comparison with the others as regard producing suitable concentrations of DNA with the minimum use of PCR inhibitor.

Background: Molecular methods for the detection of drug-resistant tuberculosis (DR-TB) are potentially more rapid than conventional culture-based drug susceptibility testing, facilitating the commencement of appropriate treatment for patients with DR-TB. The aim of this study was to evaluate and develop polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assays for the detection of mutations within rpsL, and for the determination of streptomycin (STR) resistance in Mycobacterium tuberculosis. Materials and Methods: Clinical specimens were collected from individuals with suspected TB referred to the TB Center of Isfahan' from which 205 M. tuberclosis were isolated and identified by conventional phenotypic methods. The minimum inhibitory concentration of STR for all isolates was determined using the proportion method and 10 isolates were recognized as STR resistant M. tuberculosis. The effect of genetic alterations in the rpsL gene for these resistant isolates were investigated by PCR-RFLP method. Results: Three (30%) isolates showed point mutation at codon 43 by RLFP analysis. Conclusion: Our results suggest that RFLP analysis of the rpsL gene is useful for the rapid prediction of STR resistant strains of M. tuberculosis.

Introduction: Hepatitis B virus (HBV) infection and its complications are major public health problems. As it is hard to treat and control the chronic state, control of disease depends on the prevention especially by vaccination. There is an impaired immune response to vaccinations including HBV in patients with some malignancies. The aim of this study is to assess the response rate of patients undergoing chemotherapy to HBV vaccination. Materials and Methods: All patients from two hematology/oncology clinics in Isfahan, Iran with the history of at least 1 month chemotherapy who had the inclusion criteria were enrolled in a case control study. Also a sex- and age-matched control group from healthy population was selected. They were vaccinated in a schedule of 0, 1, and 6 months and were examined for antibody titers 1 month after the last dose. The titers more than 10 mIU/ml were determined as positive response to vaccination. Results: In this study, 50 patients and 50 healthy subjects were enrolled. The two groups were age and sex matched (P > 0.05). Frequency of negative responses to HBV vaccination in case and control groups were 9 (18%) and 1 (2%), respectively (OR = 10.75, CI = 1.30–88.47, P = 0.027). Of 50 patients, 54%, 12%, 22%, and 12% had breast cancer, lymphoma, gastrointestinal, and genitourinary cancers, respectively, and frequency of negative responses were 3 (11%), 1 (16%), 4 (36.4%), and 1 (16%), respectively (P = 0.167). Conclusion: According to our results, malignancy and chemotherapy will have an important effect on the immune system and cause negative response to HBV vaccination. Our results revealed the importance of passive immunity and screening for HBV infection in patients undergoing chemotherapy. Also more studies for better vaccination schedules in this group of patients are recommended.

Background: Bacterial infections are responsible for great number of mortality in Intensive Care Unit (ICU). Knowledge about prevalence of bacterial infections and their antibiotic-resistance pattern would be a great step for their treatment and management. Materials and Methods: Data about nosocomial infections in ICUs of Alzahra Hospital (referral hospital in Isfahan, center of Iran) were gathered during the years 2007–2010. A questionnaire was fulfilled for any specific patient with nosocomial infection containing demographic data of patient and also characteristics of the infection. Results: Out of all patients, 707 individuals (65.6%) were male and 370 (34.4%) were female. Our data revealed that Pseudomonas aeruginosa (13.9%), Klebsiella (11%), and Escherichia coli (6.4%) were the most prevalent bacterial infections. The most common sites of nosocomial infections in the ICU were respiratory system (399 cases, 37%), urinary system (230 cases, 21.4%), and blood (102 cases, 9.5%). The antibiotic-resistance of each bacteria in ICU ward was assessed and data were categorized in a table. There were less documentary about bacterial cultures in the year 2007 when compared with the next years. Conclusion: We found some differences (such as bacterial prevalence in ICU wards which caused nosocomial infections) in our local prevalence of nosocomial infections and also in their resistance pattern compared to other centers. Knowing about our data will help physicians to administer the most suitable antibiotics for treatment of nosocomial infections in our area.

Background: Migraines are a neurological disease, of which the most common symptom is an intense and disabling episodic headache. Many persons experience sensory hyper excitability manifested by photophobia, phonophobia and osmophobia. This study was planned to investigate the prevalence of osmophobia in migranous and episodic tension type headache (ETTH). Materials and Methods: A semi-structured questionnaire was administered to all patients to evaluate the eventual presence of osmophobia during a headache attack and different characteristics of osmophobia were determined. Results: Osmophobia reported in 84% with migranous headache with aura, 74% of migranous patients without aura and in 43.3% of those with ETTH. In 50% of patients, osmophobia was present in all of their headache attacks, 11.7% had osmophobia in more than half of their attacks (from 10 attacks they reported osmophobia in 5-9 ones) and others had this sign in less than half of their attacks (from 10 attacks they reported osmophobia in less than 5 ones). Most frequently the offending odors were scents (88%), foods (54.2%) and cigarette smoke (62.5%). Osmophobia starts 30 min before the headache starts in 22.7% of patients. Conclusion: Osmophobia appears structurally integrated into the migraine history of the patient; however, for differential diagnosis with ETTH, other criteria are necessary.

Background: Decreased high-energy phosphate level is involved in endothelial cell injury and dysfunction. Reduced telomerase activity in endothelial cells in parallel with reduced energy levels might be due to altered direction of alternative splicing machine as a complication of depleted energy during the process of atherosclerosis. Materials and Methods: Isolated human umbilical vein endothelial cells (HUVECs) were treated for 24 hours by oligomycine (OM) and 2-deoxy glucose (2-DG). After 24 hours, the effect of energy depletion on telomerase splicing pattern was evaluated using RT-PCR. Indeed, in both treated and untargeted cells, nitric oxide (NO) and von Willebrand factor (vWF) were measured. Results: ATP was depleted in treated cells by 43.9% compared with control group. We observed a slight decrease in NO levels (P = 0.09) and vWF (P = 0.395) in the setting of 49.36% ATP depletion. In both groups, no telomerase gene expression was seen. Telomerase and housekeeping gene expression were found in positive control group (colon cancer tissue) and sample tissue. Conclusions: The absence of telomerase gene expression in HUVECs might be due to the mortality of these cells or the low level of telomerase gene expression in these cells under normal circumstances.

Background: Valproic acid (VPA) is a widely used broad-spectrum antiepileptic drug for therapy of generalized and focal epilepsies. Cross-sectional studies have suggested that valproate treatment may be associated with hyperinsulinemia. We decided to investigate hyperinsulinemia as a health-threatening side effect of VPA in Iranian epileptic patients. Materials and Methods: Body mass index (BMI), lipid profile, fasting serum insulin, fasting blood glucose (FBS), and homeostatic model assessment-insulin resistance (HOMA-IR) were measured in 30 VPA-treated epileptic patients and 30 controls (CBZ-treated). The Chi-square test, t-test, and Pearson correlation test were used. Results: BMI was higher in VPA group than in control group (25.7 ± 3.5 > 21.7 ± 4.1) (0.000 < 0.05). Prevalence of obesity was 16.6% in VPA group that was almost the same and even lower than general Iranian population. Serum triglyceride (TG) (150 ± 77.2) was higher than CBZ group (114 ± 35.2) (P = 0.023 < 0.05). However, serum high-density lipoprotein level was lower in VPA group than controls (45.2 ± 11.7 < 54.4 ± 13.9) (P = 0.008 < 0.05). Serum insulin, FBS, HOMA-IR, cholesterol, and low-density lipoprotein did not demonstrate statistically significant differences between the two groups (P > 0.05). Conclusion: Despite the majority of previous studies that are against VPA and according to our study, VPA could be prescribed safely and it may not cause IR and its complications.

Background: Wound healing is a complex process leading to regeneration of damaged skin tissue. Arnebia euchroma (AE) have many effective activities such as anti-inflammatory, antimicrobial, antioxidative, and anti-tumoral effects. The extract of AE has positive effects on burn wounds. This study is designed to investigate the healing effects of AE on excisional wounds in rats. Materials and Methods: Thirty six rats with the age of 8 weeks divided into three groups. One group (E1) was treated with AE gel at a concentration of 10%. Control group (C1) received normal saline and the vehicle group (C2) was treated with carboxymethyl cellulose gel as the vehicle for 14 days. Stereological analysis was done to investigate the collagen bundle and hair follicale synthesis, vascularization, fibroblast proliferation. Pathological evaluation was also conducted. Results: In this study, pathological evaluation showed severe acute inflammation in C2 group, chronic and acute inflammation in C1 and also more wound contraction in E1 in comparison with other groups. There was a meaningful difference between E1 and C1 regarding fibroblast proliferation (P < 0.05). Conclusion: Results of this study revealed the healing effect of AE on excisional wounds and recommend its administration after further clinical investigations.

Background: The objective of this study was to evaluate and compare the effects of three methods of using intravenous (IV), subcutaneous and intranasal (IN) fentanyl for pain management following general anesthesia in patients undergoing cesarean section. Materials and Methods: A prospective, randomized, single-blind clinical trial was done on 75 patients aged 20–40 years, American Society of Anesthesiology-1, who had a normal singleton pregnancy beyond 36 weeks of gestational age. Patients were randomized to receive 50 μg fentanyl intravenously (Group 1), subcutaneously (Group 2) or intranasally (Group 3) after closure of incision. The pain intensity, nausea, the systolic, and diastolic blood pressures were assessed. Results: All groups were equivalent for baseline characteristics. The average pain visual analog scale (VAS) score was less in the second group who received fentanyl subcutaneously at the time of recovery admission (6.8 ± 1.5) (P = 0.037) and after 3 h (6.36 ± 1.5) (P = 0.033) postoperatively. The mean VAS score of nausea and the mean systolic and diastolic blood pressures were not significantly different between three groups throughout the study (P > 0.05). Conclusion: subcutaneous fentanyl is an effective alternative to IV and IN route of administration for pain management.

Background: Using autologous tissue is a simple process and ideal choice for augmentation of the soft facial tissue. In this regard, platelet-rich fibrin matrix (PRFM) is used for the correction of fine rhytids and nasolabial folds (NLFs) as well as facial augmentation. This study tries to evaluate the tangibility of PRFM for facial augmentation. Materials and Methods: In this study, 20 patients (20–45 years) were studied to examine the augmentation (4 patients were excluded). For each, 3cc of PRFM provided by using 35cc of autologous blood and injected through subdermal technique into NLFs. Thickness and volume of the tissue were measured before and 3 months after treatment by sonography. The collected data were analyzed through paired t-test and independent t- test by using SPSS version 19.0 (SPSS Inc., Chicago, IL, USA). Results: The study included 16 women, with average of 39.43 ± 6.84 years (age range, 20–45 years). The thickness and the volume of subcutaneous tissue in NLFs before and after treatment show no significant difference on the right side rather than on the left side (P > 0.05), but the thickness and the volume of the tissue on both sides after treatment shows significant increase rather than before treatment, so that this increase was significant statistically. This study shows that different right and left thickness was 0.54 ± 0.51 and 0.51 ± 0.38 (P ≤ 0.001). Further, different right and left volume was 0.25 ± 0.20 and 0.26 ± 0.22, respectively (P < 0.001). Conclusion: According to the results, the increased tissue volume by PRFM still persists after 3 months of treatment and its retention has been effective on the healing process.

Background: Head trauma is one of the most common reasons for emergency department (ED) care. Over the past decade, initial management strategies in mild and moderate head trauma have become focused on selective computed tomography (CT) use based upon presence or absence of specific aspects of patient history and/or clinical examination which has received more attention following reports of increased cancer risk from CT scans. Recently changes in serum brain natriuretic peptide (BNP) levels following head trauma have been studied. We investigated the changes in serum levels of BNP in patients with mild and moderate head trauma, in whom the first brain CT scanning was normal. Materials and Methods: This study is a cross-sectional, descriptive research. It was performed in patients with mild and moderate head trauma. Forty-one patients with isolated mild and moderate traumatic brain injury (Glasgow Coma Scale = 9–15) were included. First brain CT scans were obtained during 2 h after ED arrival and the second one after 24 h. Plasma BNP levels were determined using a specific immunoassay system. Results: Twenty-three patients were in Group A (with normal first and second brain CT) and 18 patients in Group B (with normal first and abnormal second brain CT). With P = 0.001, serum BNP level = 9.04 was determined for differentiating two groups. Conclusion: We concluded that serum BNP level is higher in patients with mild and moderate head trauma with delayed pathologic changes in second brain CT relative to patients with mild and moderate head trauma and with normal delayed brain CT.

Background: The recent focus is on the increase in the burden of falciparum cases with a varied spectrum of presentation and outcome, especially in developing countries like India. This study was undertaken to analyze the trend and manifestations of falciparum malaria in a tertiary care hospital. Materials and Methods: This descriptive study was carried out at the Gauhati Government Medical College and Hospital from June 2006 to May 2007. The data were collected on demographic and time characteristics, clinical and laboratory findings, the outcome of disease and expressed in proportion or percentages. Results: Out of the 100 cases, around 2^nd/3^rd (63%) of cases were in the age group of 15–30 years and the mean age was found to be 29.51 years. About 66% of them were males. Clinical presentations included pain abdomen (42, 42%), nausea and vomiting (35, 35%), jaundice (34, 34%), oliguria (24, 24%), altered sensorium (24, 24%), breathing difficulty (10, 10%), and seizures (5, 5%). Number of cases and mortality were more with a peak in the month of May and September. Manifestations of severe falciparum malaria included hepatopathy (38%), renal failure (28%), shock (9%), acute respiratory distress syndrome (7%), hypoglycemia (3%), and severe anemia (1%). Eighty-two cases (82%) recovered and 18 cases (18%) expired. Conclusion: Falciparum malaria is more among younger adult age group and males. Complications and mortality are also more due to falciparum malaria.

Background: Iron dextran is in common use to maintain iron stores. However, it is potentially toxic and may lead to iron deposition (ID) and impair functions of organs. Iron overload can regulate the expression of inducible nitric oxide synthase (iNOS) in some cells that has an important role in tissue destruction. S-methylisothiourea hemisulfate (SMT) is a direct inhibitor of iNOS, and this study was designed to investigate the effect of SMT against kidney ID in iron overload rats. Materials and Methods: 24 Wistar rats (male and female) were randomly assigned to two groups. Iron overloading was performed by iron dextran 100 mg/kg/day every other day for 2 weeks. In addition, during the study, groups 1 and 2 received vehicle and SMT (10 mg/kg, ip), respectively. Finally, blood samples were obtained, and the kidneys were prepared for histopathological procedures. Results: SMT significantly reduced the serum levels of creatinine and blood urea nitrogen. However, SMT did not alter the serum levels of iron and nitrite, and the kidney tissue level of nitrite. Co-administration of SMT with iron dextran did not attenuate the ID in the kidney. Conclusion: SMT, as a specific iNOS inhibitor, could not protect the kidney from ID while it attenuated the serum levels of kidney function biomarkers.

Background: Epstein-Bar virus (EBV) is the main etiology of infectious mononucleosis (IM) syndrome that is characterized by fever, sore throat, and lymph adenopathy. Since, this virus could be associated with a number of malignancies, some hematologic disorders, and chronic fatigue syndrome, identification of IM is very important. The aim of study was to evaluate the specificity, as well as sensitivity of the two different methods that is, serology versus molecular diagnosis that are currently used for diagnosis of IM. Materials and Methods: In this study, during a period of 3.5 years, 100 suspected patients as case group and 100 healthy individuals as a control group were studied. Fifty samples in each group were tested by polymerase chain reaction (PCR) and all the samples including case group and control group were carried out by enzyme-linked immunosorbent assay (ELISA). Results: In 76% of patients and in 20% of the healthy individuals, samples were detected EBV DNA by PCR. On the other hand, 68.5% of the samples belong to the case group and 46% in the control group showed positivity by ELISA. Conclusion: By comparing the two methods, since PCR is very expensive and time consuming, and the percentages of difference ranges are narrow, ELISA could be applied as a first, easiest, and preliminary diagnostic test for IM. In addition, this test could be applied in various phases of the disease with a higher sensitivity comparing to PCR. Although PCR is routinely used for diagnosis of various infectious agents, it is considered as an expensive test and merely could be used after 1-2 weeks from the onset of the illness.

Background: Congenital hypothyroidism (CH) due to the thyroid dyshormonogenesis is more prevalent in Iran in comparison to other countries. Sodium iodide symporter (NIS) is one of the plasma membrane glycoproteins that is located on the basolateral side of thyroid follicular cells and mediates active I⁻ trapping into these cells. Playing a prominent role in thyroid hormone synthesis, NIS gene mutations can be a cause of permanent CH with the etiology of dyshormonogenesis. The aim of this study was to investigate the occurrence of T354P mutation of the NIS gene, in a group of children affected with permanent CH in Isfahan. Materials and Methods: Thirty-five patients with the etiology of dyshormonogenesis, and 35 healthy children, collected between 2002 and 2011 in Isfahan Endocrine and Metabolism Research Center, were examined for T354P mutation of the NIS gene by direct polymerase chain reaction-sequencing method. Results: No T354P mutation was detected in any of the studied children. Conclusions: More subjects with confirmed iodide transport defects should be screened for detecting the frequency of different reported NIS gene mutations in our population.

Background: Cardiovascular hemodynamic changes after laryngoscopy and endotracheal intubations can cause serious complications. This study was carried out to evaluate the correlation between the anthropometric indices and hemodynamic changes after laryngoscopy and endotracheal intubation (EI). Materials and Methods: This descriptive–analytical pilot study was carried out in 2012, in the Kashani Hospital, Isfahan, Iran. After obtaining written informed consent from 130 patients who fulfilled the inclusion criteria, they were enrolled in the study. The recorded data included were, age, weight, height, neck circumference (NC), waist-to-hip ratio (W/H ratio) and body mass index (BMI). The heart rate (HR), systolic blood pressure (SAP), diastolic blood pressure (DBP), and mean arterial blood pressure (MAP) were recorded at baseline (before injection of the anesthetic drugs), just before laryngoscopy, and one, three, five, and ten minutes after EI. Results: The best cut-off points for BMI, NC, and W/H ratio, for prediction of significant cardiovascular changes after EI were, 26.56 kg/m², 38 cm, and 0.82, respectively. There was a significant correlation between BMI and HR changes in the first and fifth minutes and also in MAP in the third and fifth minutes after EI (P < 0.05). Moreover, there was a significant correlation between NC and MAP in the fifth minute (P < 0.05). The W/H ratio was significantly related to the DBP in the tenth minute and MAP in the fifth and tenth minutes (P < 0.05). Conclusions: Based on the results of this study, among the anthropometric indices, the BMI, NC, and W/H ratio were significantly correlated with cardiovascular changes after laryngoscopy and tracheal intubation.

Background: Fibrocyte-specific protein, otospiralin, is a small protein, widely expressed in the central nervous system as neuronal cell bodies and glia. The increased expression of otospiralin in reactive astrocytes implicates its role in signaling pathways and reparative mechanisms subsequent to injury. Indeed, otospiralin is considered to be essential for the survival of fibrocytes of the mesenchymal nonsensory regions of the cochlea. It seems that other functions of this protein are not yet completely understood. Materials and Methods: Amino acid sequences of otospiralin from 12 vertebrates were derived from National Center for Biotechnology Information database. Phylogenetic analysis and phylogeny estimation were performed using MEGA 5.0.5 program, and neighbor-joining tree was constructed by this software. Results: In this computational study, the phylogenetic tree of otospiralin has been investigated. Therefore, dendrograms of otospiralin were depicted. Alignment performed in MUSCLE method by UPGMB algorithm. Also, entropy plot determined for a better illustration of amino acid variations in this protein. Conclusion: In the present study, we used otospiralin sequence of 12 different species and by constructing phylogenetic tree, we suggested out group for some related species.

Background: Subclinical hypothyroidism (SHT) may increase the risk of cardiovascular disease. We compared endothelial function between SHT patients and euthyroid individuals, and evaluated the effects of levothyroxine therapy on endothelial function in the patients. Materials and Methods: In a quasi-experimental study, flow-mediated dilatation (FMD) and intima-media thickness (IMT) were assessed in SHT patients and healthy controls (n = 25 in each group). Patients then received levothyroxine (50 μg/day) for 2 months, and the FMD and IMT assessments were repeated. Results: Patients and controls were similar in IMT (0.56 ± 0.09 vs. 0.58 ± 0.08 mm, P = 0.481), but FMD was lower in patients than in controls (4.95 ± 2.02 vs. 6.50 ± 2.57%, P = 0.011). A significant increase was observed in FMD (4.11 ± 2.37%, P = 0.001), but not in IMT (−0.004 ± 0.020 mm, P = 0.327), after levothyroxine therapy among the patients. Conclusions: Patients with SHT have endothelial dysfunction which responds to levothyroxine therapy. Randomized placebo-controlled trials are needed to confirm these findings.

Background: Multiple sclerosis may have profound emotional consequences. The relation between psychological and physical factors could lead patients toward unforeseen disease. This study focuses on multiple sclerosis (MS) disease duration on personality type A and B in relation to individuals' behaviors. Materials and Methods: This descriptive-analytical study was conducted in Isfahan Alzahra hospital in 2013. Three hundred MS patients and 100 healthy individuals were determined. The distributed questionnaires related to MS patients and considering the descriptive statistics such as demographic variables. Data were analyzed by SPSS software (version 18) based on Chi-square test and independent T-test. Results: Disease duration varied between 1 to 38 years: 30% (1-4 years), 38% (5-10 years), 20% (10-20 years), and 12% (more than 20 years). Significant relationship was observed between disease duration and tendency to type A (higher stress). This relation was positive and significant in Relapsing Remitting MS patients; but negative correlation was seen in Secondary Progressive MS patients. These patients tended to type B (lower stress) when disease duration increased. Conclusions: Individuals with disease duration of one year and less than one year tend to type A personality, while patients with increment of disease duration have tendency to type B.

Background: Lactoferrin (LF) is an iron-binding glycoprotein with antioxidant, anti-inflammatory and nitric oxide-dependent vasodilatory properties. In the present study, we investigated the protective and antioxidant effects of LF on H₂O₂-induced oxidative stress in human umbilical vein endothelial cells (HUVECs). Materials and Methods: HUVECs were pretreated by (6.25–100 µg/ml) LF for 24 h and then exposed to 0.5 mM H₂O₂ for 2 h. Cell viability was assessed by 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The intra- and extra-cellular hydroperoxides concentration and ferric reducing antioxidant power (FRAP) were determined in pretreated cells. Results: Pretreatment of HUVECs with LF at the concentrations of 25–100 µg/ml significantly reduced the cytotoxicity of H₂O₂ in a concentration-dependent manner using MTT assay. LF pretreatment at different concentration ranges also decreased the hydroperoxides level and augmented the FRAP value in both intra-and extra-cellular assay. Conclusion: These findings revealed antioxidant and cytoprotective effects of LF against H₂O₂-induced oxidative stress in HUVECs. With regard to the beneficial vascular activity of LF, further investigations are suggested for understanding its clinical value in human endothelial dysfunction and prevention and/or treatment of CVDs.

Background: Stroke is the second most common cause of death and major cause of disability worldwide. The objective of this study is to identify the major risk factors and assess the awareness among the stroke survivors. Materials and Methods: A prospective study was conducted at super specialty hospital, from December 2010 to July 2011. All the stroke patients of the age >25 years with either sex admitted in the hospital were included in the study. In order to assess the awareness among the stroke survivors, questionnaire established on the risk factors for stroke from the previously published studies. Results: A total of 100 patients with stroke or cerebrovascular accident were included in the study. Of 100 patients, 73% patients had ischemic stroke and 26% patients had hemorrhagic stroke. The mean age of the patients was 50 years and the incidence of stroke was predominant in males 73%, followed by females 27. It was observed that 70% of patients were hypertensives, 28% were diabetics, 27% were alcoholics, and 24% of patients had a habit of smoking, followed by others. The knowledge of the risk factors for stroke in stroke survivors was also very low, and the knowledge was varied among the subjects according to their level of educational status. Conclusion: This study reveals that hypertension is the most common risk factor for stroke followed by diabetes, smoking, and dyslipidemia. The awareness of risk factor among stroke survivors was poor.

Background: Ureteropelvic junction obstruction (UPJO) is the most common cause of hydronephrosis within childhood that usually treat by surgery. According to anatomical variations in different individuals, scheduling similar procedures for all patients is not suitable, and thus the best decision for an appropriate surgical technique should be considered separately for each patient. Regardless of the type of applied technique, creating a funnel-shape UPJ with a suitable size is a successful treatment. In this context, the assessment of a successful surgical treatment in a short-term follow-up means repairing revealed anatomical defects. The present study aimed to compare the diagnostic value of static magnetic resonance urography (MRU) and diuretic-based renalscintigraphy (DRS) in patients with UPJO after pyeloplasty. Materials and Methods: A total of 30 consecutive patients with UPJO, who underwent unilateral pyeloplasty between 2012 and 2013 were assessed. All subjects underwent DRS and also MRU about 1-month after the former procedure. Results: The Kendall's tau correlation showed a very strong correlation between results of MRU and diuretic renal scintigraphy (r = 0.932, P < 0.001). This strong correlation was also shown by Somers'd test (r = 0.932, P < 0.001) similarly. Conclusions: Our study shows a strong agreement between DRS and MRU to assess UPJO. MRU static fluid has a high accuracy for assessment of renal system anatomy. Due to the lack of dangerous consequences of contrast materials, MRU can be the best option instead of DRS.

Background: There are many factors that affect the quality of life, for example, stress and the coping strategies. Polycystic ovary syndrome is a common hormonal disorder leading to menstrual disorders, hirsutism, acne, obesity, infertility and abortion. In such cases, the patients suffer from a variety of stresses and face problems in their coping strategies with life's problems which can affect the quality of life and cause psychological distress and low the quality of life. The quality of life is a descriptive term which points to health and emotional, social and physical promotion of individuals as well as their ability to perform daily living tasks. The purpose of this study was to investigate the relationship between quality of life and coping strategies in patients with polycystic ovary syndrome. Materials and Methods: To perform this study, randomly 200 women who had inclusion criteria and were referred to Ali Shariati Hospital in Isfahan were selected and responded DLQI questionnaire and Carver coping strategies and form of demographic characteristics. Results: The mean score of quality of life in the patients was 4.14 ± 5.57. It was shown that acne has no effective role on quality of life and coping strategies in contrast in hirsute and non-hirsute patients; there was a significant difference in quality of life P value < 0.001). Also there is a significant relationship between the quality of life and coping strategies (problem solving, cognitive, emotional and social support) (P < 0.05) and quality of life has the highest correlation with emotional strategies (r = 0.46). Conclusion: According to results of this study, patients with PCOS are at risk pcychologicla disorders that may be led to decrease of quality of life. Thus this patients need to support by oppositions strategies. Also not only physical treatment but also psychological surveillance especially social support must be done for them.

Background: Ghrelin is involved in modulation of food intake and energy homeostasis; however, it may play a role in cardiovascular system and atherosclerosis process. This study aimed to investigate the effect of ghrelin on serum inflammatory markers in control and obese mice. Materials and Methods: Ghrelin (100 mg/kg/day, twice daily) was administered interaperitoneally to control and diet-induced obese mice. After 10 days, blood samples were taken. Results: Results showed that administration of ghrelin did not change serum hsCRP level; however, it reduced serum IL-6 concentration in obese mice (P < 0.05). Conclusion: It seems that the exact role and mechanism of ghrelin in prevention or treatment of atherosclerosis needs more studies.

Background: Considering the side effects of pharmacological methods, there has been a suggestion to use nonpharmacological methods such Aromatherapy following coronary artery bypass grafting (CABG). This study aims to evaluate the effectiveness of lavender 2% aromatherapy on sternotomy pain intensity after coronary artery bypass graft surgery in patients who have undergone surgery. Materials and Methods: During this clinical trial, 50 patients who were candidates for CABG, were randomly divided into two equal groups, that is, the control group (n = 25) and the case group (n = 25). Following CABG, the case group received two drops of 2% lavender oil every 15 minutes with supplemental oxygen and the control group received only supplemental oxygen through a face mask. The data collection tools comprised of the demographic check list and visual analog scale (VAS) for evaluating the pain intensity. The pain intensity were assessed pre- and five, 30, and 60 minutes post aromatherapy. The final data were analyzed by the t-test and chi-squared test. Results: The findings showed that the pain perception intensity in the case group was lower than that in the control group at the 30- and 60-minute phases after intervention (P < 0.0001). Conclusion: The result indicated that aromatherapy can be used as a complementary method in postoperative pain reduction, as it reduced pain. The patients require two sedative drugs, and moreover, it avoids expenses of treatment.

Background: Polycystic ovary syndrome (PCOS) is one of the most frequent endocrine disorders. The PCOS manifest by hyperandrogenism, hypertension and cholesterol and lipoprotein improper profiles. Changing the life style, e.g. increasing physical activities is the first approach in controlling PCOS. Materials and Methods: Twenty-four women affected by polycystic ovary syndrome (PCOS) after medical screening were divided in to two groups: Experimental group (n = 12) and control group (n = 12), with the average age, weight, height, BMI and WHR of 26.87 ± 4.43 years, 75.71 ± 10.65 kg. 159.29 ± 6.44 cm, 29.86 ± 3.22 kg/m ² and 91.75 ± 5.86 respectively. First the body composition such as BMI, WHR, percent body fat, weight and body fat mass were measured. In fasting blood samples the level of HDL, LDL, VLDL, triglyceride and cholesterol were measured. Then the experiment group underwent the effect of an aerobic exercise program. After 12 weeks, all the measured variables before intervention the test were re-measured. Correlated t-test was used for comparing the two groups before and after intervention the test and independent t-test was used for comparing the two groups (P < 0.05). Results: The results showed that after 12 weeks of exercise, BMI, WHR, fat rate, weight and fat mass and triglyceride had significant reduction and HDL had significant increase. But no significant changes happened in LDL, VLDL, and cholesterol levels. Conclusion: Reducing the weight by aerobic exercise in obese women and affected by PCOS can correct lipoprotein profile and improving health.

Background: Wastewater contains a variety of pathogens and bio -aerosols generated during the wastewater treatment process, which could be a potential health risk for exposed individuals. This study was carried out to detect Legionella spp. in the bio -aerosols generated from different processes of a wastewater treatment plant (WWTP) in Isfahan, Iran, and the downwind distances. Materials and Methods: A total of 54 air samples were collected and analyzed for the presence of Legionella spp. by a nested- polymerase chain reaction (PCR) assay. A liquid impingement biosampler was used to capture bio -aerosols. The weather conditions were also recorded. Results: Legionella were detected in 6% of the samples, including air samples above the aeration tank (1/9), belt filter press (1/9), and 250 m downwind (1/9). Conclusion: The result of this study revealed the presence of Legionella spp. in air samples of a WWTP and downwind distance, which consequently represent a potential health risk to the exposed individuals.

Background: During adolescence, sex hormones play an important role in regulating proliferation, differentiation, maturation, and the scheduled death of chondrocytes. Although some studies have reported the regulatory role of estrogen in the development and progression of cartilage, some of the mechanisms still remain unclear, including the role of estrogen in the expression of cartilage-specific genes in chondrogenesis process, which we cover in this study. Materials and Methods: In the present study, we used adipose-derived stem cells (ADSCs) to differentiate into cartilage. Differentiated cartilage cells were used in the control (without estrogen E2 in the culture medium) and experimental (with estrogen in the culture medium) groups to evaluate the expression of type II collagen and aggrecan as chondrogenic genes markers, with -real-time polymerase chain reaction technique. Results: Our results indicated that estrogen leads to inhibition of type II collagen gene expression and reduction of aggrecan gene expression. Conclusion: Therefore, estrogen probably has negative effects on chondrogenesis process of ADSCs.

Background: Type 2 diabetes (T2D) is a multifactorial disease with susceptibility of several genes that are related to T2D. Insulin secretion pathway starts with potassium channels in pancreatic beta cells. KCNJ11 gene encodes ATP-sensitive potassium channel subunits. Some studies suggested that KCNJ11 (E23K) mutation increases the risk of T2D. Therefore, present study was designed to investigate the association between E23K polymorphism of KCNJ11 gene and type 2 diabetes mellitus (T2DM) in the Iranian population. Materials and Methods: The type of study was case-control and 40 unrelated subjects, including 20 healthy controls and 20 diabetic patients were recruited (diagnosed based on American Diabetes Association criteria). Blood samples were used for isolation of genomic deoxyribonucleic acid (DNA). Having extracted the genomic DNA from human blood leukocytes by means of High Pure PCR Template Preparation Kit, PCR-restriction fragment length polymorphism method was used to detect KCNJ11 E23K gene polymorphism. BanII restriction enzyme was used for digestion. Data were analyzed using Chi-square or Fisher exact test or independent t-test, as appropriate. P < 0.05 was considered. Results: We found that the carrier homozygous for KK genotype are susceptible to T2D (0.049) and in patients the frequency of K allele was higher than control subjects (0.048). Conclusion: The present study suggests that KCNJ11 (E23K) gene polymorphism is associated with T2DM.

Background: hospital personnel are at high risk of exposure, infection, and transmission of viral hepatitis. The present study aimed at investigating the knowledge, attitude, and performance of health service providers to provide them with the information required for their educational promotion on viral hepatitis. Materials and Methods: This cross-sectional study was conducted on 400 staff of the forenamed healthcare settings such as on nurses, midwives, licensed practical nurses, and lab officials in Isfahan, Iran, in 2012. A checklist including demographic data and questions associated with the knowledge (18 questions), attitude (4 questions), and performance (15 questions) on hepatitis B and C was completed by the participants. Results: A total of 388 participants completed the checklist. Participants' knowledge on the ways of transmission, prevalence, vaccination, and prevention methods was moderate (total score = 58.56 ± 10.1 percent) and the attitude was generally positive. Proper vaccination was carried out by 81.4% of the participants. Accidental injury by a needle was reported in 47.7% of the participants, but only 37.6% of them reported it to higher authorities and of them only 13.7% received appropriate treatment. Only 44.3% and 11.6% of participants reported always using gloves and masks, respectively, and 58.8% of the staff covered the needle cap before transferring it to the safety box. Conclusions: Due to excessive contact with patients, a paramedic-educated society is expected to have an optimal level of knowledge, attitude, and performance related to viral hepatitis. Our results from the checklists showed that medical personnel are not appropriately aware of viral hepatitis and their performance, too, is not satisfactory. Further continuous training is required and there needs to be more emphasis on actions regarding behaviors with high risk of infection transmission.

Background: Definite treatment of pancreatic adenocarcinoma is surgical resection. Absence of early symptoms in most patients leads to late diagnosis and treatment. This study aims to evaluate resectability of the pancreatic adenocarcinoma at the time of the diagnosis in Iran. Materials and Methods: The present study which is of a descriptive, prospective and case series nature, has been studying the resectability of the pancreatic adenocarcinoma by multi-detector computerized tomography, endoscopic ultrasonography, laparoscopy and/or laparotomy in 157 patients for the duration of 2 years since November 2009. Results: A total of 157 patients were enrolled in this study. Majority of them (68%) were male. The mean age was 67 years. Final diagnosis obtained 1-12 (2.7 ± 1.6) months after beginning of the symptoms. The lesion situated in the head of the pancreas in 127 cases (81%). Vascular invasion, lymphadenopathy, liver metastasis and peritoneal involvement were seen in 88%, 57%, 43% and 19% of the patients, respectively. According to imaging, tumor was resectable in 10 (6%) patients but laparoscopy and/or laparotomy revealed that only five cases (3%) were actually resectable. After 24 months, only 8 patients were alive; 5 cases of them had been treated by Whipple surgery and other 3 cases were under the chemotherapy. At 1 and 2 year survival rate of the patients was 11% and 5%, respectively. Conclusion: Majority (97%) of the pancreatic adenocarcinomas are unresectable at the time of diagnosis. Thus, meticulous preoperative assessment of patients is essential in patients to avoid major surgery in unresectable cases.

Background: Anterior shoulder dislocation is the most common major joint dislocation. In patients with recurrent shoulder dislocation, surgical intervention is necessary. In this study, two methods of treatment, Bankart arthroscopic method and open Bristow procedure, were compared. Materials and Methods: This clinical trial survey had been done in the orthopedic department of Alzahra and Kashani hospitals of Isfahan during 2008-2011. Patients with recurrent anterior shoulder dislocation who were candidates for surgical treatment were randomly divided into two groups, one treated by Bankart arthroscopic technique and the other treated by Bristow method. All the patients were assessed after the surgery using the criteria of ROWE, CONSTANT, UCLA, and ASES. Data were analyzed by SPSS software. Results: Six patients (16.22%) had inappropriate condition with ROWE score (score less than 75); of them, one had been treated with Bristow and five with Bankart (5.26 vs. 27.78). Nine patients (24.32%) had appropriate condition, which included six from Bristow group and three treated by Bankart technique (31.58 vs. 16.67). Finally, 22 patients (59.46%) showed great improvement with this score, which included 12 from Bristow and 10 from Bankart groups (63.16 vs. 55.56). According to Fisher's exact test, there were no significant differences between the two groups (P = 0.15). Conclusion: The two mentioned techniques did not differ significantly, although some parameters such as level of performance, pain intensity, use of analgesics, and range of internal rotation showed more improvement in Bristow procedure. Therefore, if there is no contraindication for Bristow procedure, it is preferred to use this method.

Background and Aims: This study aimed to clone and express the reteplase cDNA, a thrombolytic agent used for the treatment of acute myocardial infarction and stroke, in E. coli, utilizing tac promoter for its expression. Materials and Methods: Reteplase cDNA was amplified by polymerase chain reaction (PCR) with designed primers. The product was then cloned into pTZ57R plasmid. The cloned cDNA was digested out and ligated into pGEX-5x-1 expression vector. The presence of the insert was confirmed by restriction digestion. By using 0.2, 0.5 and 1 mM isopropyl beta-D thiogalactopyranoside (IPTG), expression of reteplase was induced in E. coli TOP10 cells and analyzed by SDS-PAGE. Results: Electrophoresis of PCR product and also double digested recombinant pTZ57R plasmid, also, pGEX-5x-1 vector, showed a 1068bp band of reteplase. SDS-PAGE analysis showed a 60 KDa band of protein product induced with different concentrations of IPTG. Conclusion: In the present study, reteplase cDNA was successfully cloned and expressed using tac promoter. This vector will be used for the optimization of the expression of reteplase in E. coli.

Background: Cardiac and pulmonary veins de-airing are of the most important steps during open heart surgery. This study evaluates the effect of continuous positive airway pressure (CPAP) on air trapping in pulmonary veins and on quality of de-airing procedure. Materials and Methods: This randomized prospective double blind clinical trial conducted on 40 patients. In the control group: During cardiopulmonary bypass (CPB), the ventilator was turned off and adjustable pressure limit (APL) valve was placed in SPONT position. In CPAP group: During CPB, after turning the ventilator off, the flow of oxygen flow was maintained at the rate of 0.5 L/min and the APL valve was placed in MAN position on 20 mbar. During cardiopulmonary bypass (CPB) weaning, the patients were observed for air bubbles in left atrium by using transesophageal echocardiography. Results: The mean de-airing time after the start of mechanical ventilation in CPAP group (n = 20) was significantly lower than the control group (n = 20) (P = 0.0001). The mean time of the left atrium air bubbles occupation as mild (P = 0.004), moderate (P = 0.0001) and severe (P = 0.015) grading was significantly lower in CPAP group. Conclusions: By CPAP at 20 mbar during CPB in open heart surgery, de-airing process can be down in better quality and in significantly shorter time.

Background: Trietz ligament connects the duodeno-jejunal flexure to the right crus of the diaphragm. There are various opinions regarding the existence of the smooth muscle fibers in the ligament. We want to resolve this complexity with microscopic study of this part in cadavers. Materials and Methods: This study done on three cadavers in the medical faculty of Isfahan University of Medical Sciences. Three samples of histological specimens were collected from the upper, the central, and the lower parts of Trietz ligament and were stained by H and E staining and Mallory's trichrome stain. Three samples were collected from the regions of exact connection of the main mesentery to the body wall, the intestine, and the region between these two connected regions, and these specimens were stained. Results: In the microscopic survey, no collagen bundles were observed in the collected samples of the Trietz ligament after the dense muscular tissues. In the samples which were collected to work on collagen tissues stretching from the Trietz ligament to the main mesentery of intestine, no collagen bundles were observed. Conclusion: Trietz ligament is connected to the right crus of the diaphragm from the third and the fourth parts of the duodenum. Number of researchers state that there are smooth and striated muscular tissues and some others, with regard to observations of histological phases made from the samples of Trietz muscles, conclude that it can probably be noted that muscular bundles or the dense connective tissue bundles of collagen cannot be observed in the way we imagine.

Background: Extremely low-frequency electromagnetic fields (ELF-EMF) can effect on biological systems and alters some cell functions like proliferation rate. Therefore, we aimed to attempt the evaluation effect of ELF-EMF on the growth of human adipose derived stem cells (hADSCs). Materials and Methods: ELF-EMF was generated by a system including autotransformer, multi-meter, solenoid coils, teslameter and its probe. We assessed the effect of ELF-EMF with intensity of 0.5 and 1 mT and power line frequency 50 Hz on the survival of hADSCs for 20 and 40 min/day for 7 days by MTT assay. One-way analysis of variance was used to assessment the significant differences in groups. Results: ELF-EMF has maximum effect with intensity of 1 mT for 20 min/day on proliferation of hADSCs. The survival and proliferation effect (PE) in all exposure groups were significantly higher than that in sham groups (P < 0.05) except in group of 1 mT and 40 min/day. Conclusion: Our results show that between 0.5 m and 1 mT ELF-EMF could be enhances survival and PE of hADSCs conserving the duration of exposure.

Background: Generally, the electrolyte abnormalities are seen in many hospitalized patients, and this problem increases in ones with heart diseases. The purpose of this study is determination of the prevalence of electrolyte abnormalities during the coronary artery bypass surgery (CABG) and detecting the relationship between these abnormalities with the complications after the surgeries. Materials and Methods: This is a cross-sectional study, which is done in Chamran hospital, the medical and educational center of Isfahan, Iran, in 2011. The target population included the patients who have undergone CABG in this hospital. In this study, 100 patients who had been candidates for CABG were selected, and we extracted their recorded intra-operative electrolyte information. The collected data was entered into the computer and analyzed by SPSS software. The Chi-square and t student tests were used for data analysis. Results: The mean ± SD of sodium during CABG was 137.95 ± 4.6 (range 127-152) mg\dl. Also, the mean ± SD of potassium was 4.65 ± 0.9 (range: 2.9-7.4). According to these results, 48 patients (48% of all) had electrolyte imbalance and 52 patients (52% of all) were normal. Sodium level in 71% of patients was normal, and in 29% of them was abnormal. Potassium level in 73% of individuals was normal, and in 27% of them was abnormal. Conclusion: Giving an attention to electrolyte abnormalities in patients who have undergone CABG surgery is a considerable necessity for them, and sufficient arrangements are needed to prevent such abnormalities.

Background: to investigate the effectiveness of bladder mucosal autograft for the treatment of vesicovaginal fistulae. Materials and Methods: Between March 2005 and June 2011, 21 patients with a single vesicovaginal fistula above the trigone, not involving the ureters, underwent surgery. Bladder was approached extraperitoneally and opened in the midline. The mucosa around the fistula was incised and inverting sutures were placed over the fistula opening. The mucosal defect was covered by a free mucosal graft from the edge of cystotomy incision. Results: After catheter removal at 2 weeks, 18 patients (85 %) remained dry while one patient experienced urge incontinence, which resolved in a few days and another one still had urine leakage (although less than before the operation) that improved after another 3 weeks of bladder drainage. Only in one patient, the operation failed. Conclusion : Short duration of hospitalization, simplicity of the procedure, avoidance of extensive bladder dissection, and extraperitoneal nature of the operation, along with a high success rate are the advantages of this procedure. This technique could be recommended for single fistulae not involving the ureters and not secondary to malignancies.