| ORIGINAL ARTICLE |
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| Year : 2022 | Volume
: 11
| Issue : 1 | Page : 85 |
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Vitamin D3 is well correlated with anti-Helicobacter pylori immunoglobulins and could be a well biomarker for immunity competence against the disease
Abdorrahim Absalan1, Mojdeh Meghdadian2, Nadia Keyhan3, Davood Azadi4, Fereshteh Parto5, Zahra Absalan6
1 Department of Medical Laboratory Sciences, Khomein University of Medical Sciences, Khomein; Department of Quality Control, Bahman Private Clinical Laboratory, Tehran, Iran
2 Department of Biochemistry, Islamic Azad University, Damghan Branch, Damghan, Iran
3 Department of Biochemistry, Islamic Azad University, Falavarjan Branch, Falavarjan, Isfahan, Iran
4 Department of Medical Laboratory Sciences, Khomein University of Medical Sciences, Khomein, Iran
5 Department of Medical Laboratory Sciences, School of Allied Medical Sciences, Iran University of Medical Sciences, Tehran, Iran
6 HIV Reference Laboratory of Ahwaz Jundishapur University of Medical Sciences, Ahwaz, Iran
Correspondence Address:
Dr. Abdorrahim Absalan
Department of Medical Laboratory Sciences, Khomein University of Medical Sciences, Khomein
Iran
 Source of Support: None, Conflict of Interest: None  | Check |
DOI: 10.4103/abr.abr_100_21
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Background: Helicobacter pylori (HPY) provokes gastrointestinal disorders and gastric cancer. We supposed that HPY disrupts the 25-OH-Vitamin-D3 (Vit.D3) absorption. We evaluated the association between Vit.D3 and anti-HPY immunoglobulins (Igs) and the Vit.D3 potency as a predictive biomarker for HPY infection.
Materials and Methods: 603 patients' raw data were gathered from a private clinical laboratory. Anti-HPY Igs including serum IgG, IgA, and IgM, in addition to HPY-stool antigen, were assessed by the immunoassay methods. Vit.D3 was determined by high-pressure liquid chromatography. Correlations, ordinal comparisons, cutoff points (COP), and odds ratio (OR) were estimated.
Results: The age mean ± standard deviation was 39.83 ± 18.426 for female and 38.82 ± 16.937 for male participants (P = 0.521). Significant correlations existed after age and gender adjustment between Vit.D3 serum levels and the HPY IgG (R = 0.298) and IgA (R = 0.271) but not for IgM (R = −0.103). Approximately, 48% of males and 36% of females had insufficient/deficient Vit.D3 serum levels (male/female OR: 1.65; 1.16–2.33; P = 0.0051). After age and gender adjustment, the best COP of Vit.D3 to predict an HPY IgG-positive patient was Vit.D3 >32.80 ng/mL with 66.23% diagnostic accuracy (DAAC), 30.43% specificity (SPC), and 90.41% sensitivity (SEN). For the HPY IgA, the values were Vit.D3 >37.83 ng/mL, DAAC = 60.45%, SPC = 58.82%, SEN = 64.20%. For HPY IgM, the values were Vit.D3 >37.32 ng/mL, DAAC = 58.97%, SPC = 57.33%, and SEN = 100%.
Conclusions: Vit.D3 had a good association with anti-HPY Igs and may be a good biomarker for immunity competence against HPY infection if the patient's age and gender are considered when interpreting the laboratory results.
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