Temporomandibular disorder is a multifactorial disease that causes pain in the jaw and face area with nondental origin, which frequently limits talking, chewing, and other jaw activities. Various factors such as malocclusion, trauma, stress, parafunctional habits (clenching and bruxing), osteoarthritis, and synovitis play a role in its occurrence, although the etiology of these disorders is little understood. Several treatments are being used to treat these disorders. Ozone therapy has been recently introduced as one of these treatments. Considering that no extensive study has been found in this field so far, this study is aiming to report the studies that have been conducted to determine the efficacy of ozone injection therapy in temporomandibular joint disorders. This report addresses the studies which are conducted clinically, experimentally, and semi-experimentally over the past 10 years (2009–2019). The prepared articles are screened according to the inclusion criteria. In this study, total six related articles are addressed. One study was pre- and postintervention, and five studies were clinical trials. Studies show that although more studies are needed in contrast with occlusal splint, ozone therapy is generally more effective treatment for pain reduction compared to medication.

Background: Experimental models are needed to better understand the pathophysiology of neurodegenerative diseases to develop novel therapeutics. The neuropathology and clinical signs of acute radiation syndrome resemble those of neurodegenerative conditions. We characterized elevated plus maze (EPM) indicators of cognitive and motor impairment in rats exposed to brain-damaging doses of gamma radiation to develop a model for neurological component of the acute radiation syndrome. Materials and Methods: Technetium 99 m was administered once through tail vein to male Wistar rats to reach an absorbed dose of Gamma radiation of 667 mGy (66.7Rad). Animal performance in the EPM was assessed every 14 days. Rats were observed for 9 weeks for the occurrence of systemic and neurological signs. Comparisons were done between irradiated and nonirradiated rats, and in each group with baseline performance. Results: EPM indicators of cognitive and motor impairment, anxiety, and depression were observed concomitantly and increased with the severity of acute radiation syndrome-like systemic and neurological signs. Alterations in EPM indicators appeared 3 weeks postirradiation and their severity increased with time. Notably, arm transitions and the distance covered in the maze were decreased (−56.71% and −73.62%, P < 0.001), as well as open arm entries and time spent in open arms (−77.78% and −76.19%, P < 0.05) and the indicator of thigmotaxis rearing (−92.45, P < 0.001). Conclusions: Our results suggest that irradiated rat performance in the EPM paradigm reflects disease severity and could be used to perform both acute and subchronic pharmacological studies in acute radiation syndrome-like diseases in rats.

An 81-year-old female presented with a loss of consciousness and a history of fever, dry cough, dyspnea, and conjunctivitis during 5 days ago. On initial physical examination, the laboratory examination revealed high levels of lactate dehydrogenase and creatinine concomitant severe thrombocytopenia. Moreover, the peripheral blood smear showed schistocytes 3%, suggesting thrombotic thrombocytopenic purpura (TTP). A ground-glass pattern was reported in the high-resolution computed tomography of the lung. A positive polymerase chain reaction was reported for coronavirus disease 2019 (COVID-19). After initiating treatment for COVID-19, the patient received fresh frozen plasma and 24-h electrocardiogram monitoring in the emergency department. As the patient was being prepared for transfer to another hospital for plasmapheresis treatment, cardiac arrest occurred again, and the patient passed away. This study highlights the atypical behavior of this virus over the course of the disease including TTP with conjunctivitis, which could vary from case to case.

Dystroglycanopathy is a type of congenital muscular dystrophy caused by mutations causing defective glycosylation of a dystrophin-associated glycoprotein, dystroglycan and as such is a very rare disease entity. We are reporting a 1-year-old girl child with dystroglycanopathy who presented with motor predominant developmental delay. She had motor development quotient of 52, mental development quotient of 75, facial dysmorphism, mixed hypotonia with a global decrease in muscle power, and areflexia. Serum CPK level was elevated; magnetic resonance imaging brain revealed multiple intraparenchymal cysts in the cerebellum with disorganized folia. Next-generation sequencing revealed a homozygous missense mutation in exon 3 of the ISPD gene (p.Gln215His; ENST00000407010) consistent with the diagnosis of dystroglycanopathy muscle-eye-brain disease. Genetic counseling and prenatal diagnosis for subsequent pregnancies were advised for the family, apart from appropriate rehabilitation for the child.

Background: The aim of this study was to investigate the incidence of insomnia after coronary angioplasty and coronary artery bypass graft surgery (CABG) and compare them. Materials and Methods: This cross-sectional study was done in Masih Daneshvari and Emam Hossein Hospital of Tehran during a period of 12 months in 2016. The study group consisted of patients who were admitted to these hospitals with heart disease and had to go under CABG or angioplasty. Each participant completed a detailed Persian version of the insomnia severity index and demographic questionnaire which includes demographic questions and questions about the onset or durability of sleep as well as questions about the use of alcohol, caffeine, cigarettes, and sleeping drugs 2 days before the surgery and 1 week after that. The state of insomnia was measured before and after the CABG and compared with the state of insomnia before and after angioplasty. Results: About 150 patients were included in the study (80 men [67.4%] and 70 women [43.6%]). In the CABG group, 14.67% of the preoperative patients and 24.0% of the patients after the operation had insomnia, and the difference between them was significant (P = 0.003). Furthermore, in the angioplasty group, 14.67% of the preoperative patients and 20.0% of the patients after the operation had insomnia, and the difference between them was significant (P = 0.001). Conclusion: Insomnia after both CABG and angioplasty was significantly increased but in CABG group this increase was more than angioplasty.

Background: Inflammatory pseudotumor (IPT) is a relatively rare benign disease. The aim of the study was to demonstrate the demographic distribution, clinical presentation, and histomorphological characteristics of IPT while highlighting its associated diagnostic challenges. Materials and Methods: A retrospective cross-sectional review of all the IPT diagnosed in our institution between January 1999 and December 2018 was conducted. The samples were received from within and outside the hospital facility. The demographic data, clinical history, and histologic reports were reviewed. Results: A total of 25 cases of histologically confirmed IPT were seen. Patients' age ranges from 7 to 74 years with a mean age of 38.96 years and standard deviation ± 17.94 years. There was a bimodal peak occurrence in the third and fifth decades. Most of the patients were adults (23, 92%), whereas only 2 (8%) were children. There was a female preponderance with a male-to-female ratio of 1:2.6. The head and neck had the highest number of cases (44%), followed by the gastrointestinal tract (GIT) (40%). Eight (73%) of head and neck cases occurred in the orbit. The presenting complaints depended on the site of the lesion with pain and swelling being the commonest symptoms irrespective of the site of the lesions. Two cases of bilateral IPT were observed. Immunohistochemistry was used in a certain condition of diagnostic dilemma. Conclusion: This study showed a female preponderance of IPT with the head and neck and GIT being the most common location. It is important to rule out other differentials in the diagnosis of IPT.

Background: Left ventricular ejection fraction (LVEF) is a key determinant in decision-making after acute myocardial infarction (MI). Little is known of its relationship with left ventricular Strain and N-Terminal fragment of pro-B-type Natriuretic Peptide (NT-pro-BNP) following acute anterior wall MI (AWMI). Materials and Methods: We conducted a prospective cohort study of patients with a diagnosis of acute AWMI and the absence of overt heart failure (HF). Assessment of LVEF, strain parameters on echocardiography was done, and NT-pro-BNP levels were obtained. Follow-up for adverse cardiac events was done for 30 days postdischarge. Correlation of LVEF and NT-pro-BNP with various strain parameters were ascertained. Results: Of the total of 50 patients of AWMI enrolled, the mean LVEF in the study was 43.46 ± 3.72%.Eleven patients (22%) had adverse events at 30 days of follow-up. Patients with adverse events had significantly higher overall peak systolic longitudinal strain (PSLS), lower mid-region peak systolic longitudinal velocity (PSLV), and basal region PSLV. A significant negative correlation was observed between LVEF and mean Peak PSLS of combined apical plus mid regions of the left ventricle (r = −0.700). Log10-NT-pro BNP also showed a strong negative correlation with overall PSLV (r = −0.792) as well as regional PSLV values of combined apical plus mid (r = −0.763) and basal segments (r = −0.748). Conclusions: In patients with AWMI without HF, PSLS and PSLV are good predictors of adverse outcomes at 30-day follow-up. Furthermore, NT-pro BNP can also be an indirect predictor of strain parameters on echocardiography.