رابطه‌ی بین سطح سرمی ویتامین B12 و نورومیلیت اپتیکا (اختلال طیفی NMO)

نوع مقاله : Original Article(s)

نویسندگان

1 گروه پاتولوژی، دانشکده‌ی پزشکی، مرکز تحقیقات بیماری‌های عفونی و گرمسیری، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

2 گروه آسیب‌شناسی، دانشکده‌ی پزشکی، مرکز تحقیقات علوم باروری و سلامت جنسی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

3 گروه داخلی اعصاب، دانشکده‌ی پزشکی، مرکز تحقیقات علوم اعصاب، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

4 دانشکده‌‌ی پزشکی، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران

10.48305/jims.v43.i832.1206

چکیده

مقاله پژوهشی




مقدمه: با توجه به اثرات احتمالی ویتامین B12 در سیر بیماری نورومیلیت اپتیکا، هدف از انجام این مطالعه، تعیین و مقایسه‌ی سطح سرمی ویتامین B12 در بیماران مبتلا به NMO و جمعیت نرمال بود.
روش‌ها: مطالعه به صورت مقطعی در سال 2020 در ایران بر روی 35 بیمار مبتلا به NMOSD سرولوژی منفی که به کلینیک مغز و اعصاب مراجعه کرده بودند و 53 فرد سالم انجام شد. اطلاعات دموگرافیک همه بیماران شامل سن و جنس جمع‌آوری شد. سپس سطح سرمی ویتامین B12 در همه‌ی شرکت‌کنندگان ارزیابی شد. سابقه‌ی قبلی میزان عود سالانه (Annualized relapse rate) ARR بیماری NMO در بیماران مبتلا به NMO نیز پرسیده شد و از مقیاس وضعیت ناتوانی گسترده (Expanded Disability Status Scale) EDSS برای ارزیابی ناتوانی بیماران استفاده شد.
یافته‌ها: میانگین سطح سرمی ویتامین B12 در گروه بیماران 29/7 ± 55/4 و در گروه مورد 37/2 ± 59/3 بود، اما هیچ تفاوت معنی‌داری بین دو گروه مشاهده نشد .رابطه‌ی معکوس معنی‌داری بین تعداد ARR و سطح سرمی ویتامین B12 در بیماران مبتلا به NMO مشاهده شد (0/04 = P). تحلیل همبستگی Pearson هیچ رابطه‌ی معنی‌داری بین مدت بیماری و EDSS با سطح سرمی ویتامین B12 نشان نداد.
نتیجه‌گیری: کمبود ویتامین B12 ممکن است در سیر بیماری NMO و فراوانی حملات نقش داشته باشد، اما هیچ تفاوت معنی‌داری بین سطح ویتامین B12 در بیماران مبتلا به NMO و افراد سالم مشاهده نشد. با این حال، رابطه‌ی معکوس و معنی‌داری بین تعداد حملات حاد تنفسی و سطح سرمی ویتامین B12 در بیماران مبتلا به NMO مشاهده شد.

تازه های تحقیق

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کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Correlations between Serum Vitamin B12 Levels and Neuromyelitis Optica (NMO Spectro Disorder) (NMOSD)

نویسندگان [English]

  • Azar Baradaran 1
  • Azar Naimi 2
  • Vahid Shayegannejad 3
  • Asal Abdullahi 4
1 Department of Pathology, School of Medicine, Infectious Diseases and Tropical Medicine Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
2 Department of Pathology, School of Medicine, Reproductive Sciences and Sexual Health Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
3 Department of Neurology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
4 School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran
چکیده [English]

Background: Considering the potential effects of vitamin B12 on the disease course of neuromyelitis optica spectrum disorder (NMOSD), we aimed to investigate and compare the serum levels of vitamin B12 in patients with NMO and the normal population.
Methods: This cross-sectional study, conducted in Iran in 2020, included 35 seronegative NMOSD patients who were referred to a neurology clinic and 53 healthy controls. Demographic data of all patients, including age and gender, were collected. The serum levels of vitamin B12 were then assessed in all participants. The previous history of NMO annualized relapse rate (ARR) in patients with NMO was also asked, and disability was assessed using the Expanded Disability Status Scale (EDSS).
Findings: The mean serum vitamin B12 levels were 55.4 ± 29.7 in the patient group and 59.3 ± 37.2 in the control group, but no significant differences were observed between the two groups (P = 0.99). A significant inverse correlation was found between the ARR and serum vitamin B12 levels in NMOSD patients (P = 0.04). Pearson correlation analysis showed no significant relationships between disease duration and EDSS with serum levels of vitamin B12 (P = 0.12 and P = 0.08, respectively).
Conclusion: Vitamin B12 deficiency might contribute to the NMO disease course and frequency of attacks but no significant differences were observed between levels of vitamin B12 in patients with NMO and healthy controls. However a significant reverse relationship was found between number of ARR and serum levels of vitamin B12 in patients with NMO.

کلیدواژه‌ها [English]

  • Neuromyelitis Optica
  • Vitamin B12
  • Recurrence
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