Evaluation of serum vitamin B12 levels in patients with COVID-19 infection: A case-control study

Background: COVID-19 disease affects the respiratory and cardiovascular systems. Vitamin B12 has been associated with A1AT, one of the protective factors of lung tissue, and homocysteine among the cardiovascular risk factors. Therefore we suggest that low vitamin B12 levels are associated with a dis...

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Main Author: Sezgin Yılmaz
Format: Article
Language:English
Published: Society of Medical Biochemists of Serbia, Belgrade 2023-01-01
Series:Journal of Medical Biochemistry
Subjects:
Online Access:https://scindeks-clanci.ceon.rs/data/pdf/1452-8258/2023/1452-82582303524S.pdf
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author Sezgin Yılmaz
author_facet Sezgin Yılmaz
author_sort Sezgin Yılmaz
collection DOAJ
description Background: COVID-19 disease affects the respiratory and cardiovascular systems. Vitamin B12 has been associated with A1AT, one of the protective factors of lung tissue, and homocysteine among the cardiovascular risk factors. Therefore we suggest that low vitamin B12 levels are associated with a disposition to COVID-19 infection. This study aims to determine whether there is a relationship between COVID-19 infection and serum vitamin B12 levels. Methods: This research is a case-control study. Seventy-six people with COVID-19 constituted the case group. Seventy-six people without COVID-19 formed the control group. Vitamin B12 and homocysteine levels of 152 patients included in the study were analyzed. Results: The odds ratio for vitamin B12 was 0.99 (0.978-0.995). When the value of the vitamin B12 variable decreases by one unit, the risk of COVID-19 increases by 1%. The odds ratio for homocysteine was 1.81 (1.414-2.325). When the value of the homocysteine variable increases by one unit, the risk of COVID-19 increases by 1.81 times. According to ROC analysis, when serum vitamin B12 is below 222.5 ng/L and homocysteine is above 13.7 mmol/L, it may increase the risk of COVID-19. Conclusions: We suggest that patients with low vitamin B12 levels and high homocysteine levels are more severely affected by COVID-19 infection.
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spelling doaj.art-cb5c6c4eda50428d8aead9dca514e63f2023-10-02T22:17:54ZengSociety of Medical Biochemists of Serbia, BelgradeJournal of Medical Biochemistry1452-82581452-82662023-01-0142352452910.5937/jomb0-423571452-82582303524SEvaluation of serum vitamin B12 levels in patients with COVID-19 infection: A case-control studySezgin Yılmaz0University of Health Sciences Turkey, Istanbul Training and Research Hospital, Clinic of Family Medicine, Istanbul, TurkeyBackground: COVID-19 disease affects the respiratory and cardiovascular systems. Vitamin B12 has been associated with A1AT, one of the protective factors of lung tissue, and homocysteine among the cardiovascular risk factors. Therefore we suggest that low vitamin B12 levels are associated with a disposition to COVID-19 infection. This study aims to determine whether there is a relationship between COVID-19 infection and serum vitamin B12 levels. Methods: This research is a case-control study. Seventy-six people with COVID-19 constituted the case group. Seventy-six people without COVID-19 formed the control group. Vitamin B12 and homocysteine levels of 152 patients included in the study were analyzed. Results: The odds ratio for vitamin B12 was 0.99 (0.978-0.995). When the value of the vitamin B12 variable decreases by one unit, the risk of COVID-19 increases by 1%. The odds ratio for homocysteine was 1.81 (1.414-2.325). When the value of the homocysteine variable increases by one unit, the risk of COVID-19 increases by 1.81 times. According to ROC analysis, when serum vitamin B12 is below 222.5 ng/L and homocysteine is above 13.7 mmol/L, it may increase the risk of COVID-19. Conclusions: We suggest that patients with low vitamin B12 levels and high homocysteine levels are more severely affected by COVID-19 infection.https://scindeks-clanci.ceon.rs/data/pdf/1452-8258/2023/1452-82582303524S.pdfcovid-19vitamin b12 deficiencyhomocysteine
spellingShingle Sezgin Yılmaz
Evaluation of serum vitamin B12 levels in patients with COVID-19 infection: A case-control study
Journal of Medical Biochemistry
covid-19
vitamin b12 deficiency
homocysteine
title Evaluation of serum vitamin B12 levels in patients with COVID-19 infection: A case-control study
title_full Evaluation of serum vitamin B12 levels in patients with COVID-19 infection: A case-control study
title_fullStr Evaluation of serum vitamin B12 levels in patients with COVID-19 infection: A case-control study
title_full_unstemmed Evaluation of serum vitamin B12 levels in patients with COVID-19 infection: A case-control study
title_short Evaluation of serum vitamin B12 levels in patients with COVID-19 infection: A case-control study
title_sort evaluation of serum vitamin b12 levels in patients with covid 19 infection a case control study
topic covid-19
vitamin b12 deficiency
homocysteine
url https://scindeks-clanci.ceon.rs/data/pdf/1452-8258/2023/1452-82582303524S.pdf
work_keys_str_mv AT sezginyılmaz evaluationofserumvitaminb12levelsinpatientswithcovid19infectionacasecontrolstudy