临床荟萃 ›› 2024, Vol. 39 ›› Issue (1): 34-37.doi: 10.3969/j.issn.1004-583X.2024.01.005

• 论著 • 上一篇    下一篇

血清维生素B12与老年2型糖尿病轻度认知功能障碍的关系

张佳楠1, 孙琳琳2(), 詹潇燕1, 李冰1   

  1. 1.锦州医科大学抚顺市中心医院研究生培养基地,辽宁 抚顺 113006
    2.抚顺市中心医院 内分泌科,辽宁 抚顺 113006
  • 收稿日期:2023-09-07 出版日期:2024-01-20 发布日期:2024-03-22
  • 通讯作者: 孙琳琳,Email: 67035472@qq.com

Correlation between serum Vitamin B12 and mild cognitive impairment in elderly patients with type 2 diabetes mellitus

Zhang Jianan1, Sun Linlin2(), Zhan Xiaoyan1, Li Bing1   

  1. 1. Postgraduate Training Base of Fushun Central Hospital of Jinzhou Medical University, Fushun 113006, China
    2. Department of Endocrinology, Fushun Central Hospital, Fushun 113006, China
  • Received:2023-09-07 Online:2024-01-20 Published:2024-03-22

摘要:

目的 探讨血清维生素B12(VB12)水平与老年2型糖尿病(T2DM)合并轻度认知功能障碍(MCI)的相关性。方法 收集2023年1月-2023年7月在抚顺市中心医院内分泌科收治入院的老年T2DM患者共120例,根据血清VB12正常水平进行三等分,将患者分为A组(200≤VB12<500 ng/L)36例,B组(500≤VB12<800 ng/L)71例,C组(800≤VB12<1100 ng/L)13例,采用简易蒙特利尔认知评估(MoCA)量表对各组进行认知功能评定比较。 比较3组MCI患病率。用logistic回归分析维生素B12的不同水平与MCI 的相对风险。结果 MCI发病率随VB12水平的增高而降低。校正了性别、年龄、TC、HDL-C、LDL-C变量后,logistic回归结果显示,以C组为参照组,A组发生MCI的OR值(95% C I)为6.121(1.161~32.265)。结论 200≤VB12<500 ng/L是老年 T2DM 患者合并MCI的独立危险因素。

关键词: 糖尿病, 2型, 维生素B12, 轻度认知功能障碍

Abstract:

Objective To investigate the correlation between serum vitamin B12 (VB12) level and mild cognitive impairment (MCI) in elderly patients with type 2 diabetes mellitus (T2DM). Methods A total of 120 elderly T2DM patients admitted to the Endocrinology Department of Fushun Central Hospital from January 2023 to July 2023 were collected. According to the tertiles of the measured serum VB12, patients were divided into A group (200 ng/L≤VB12<500 ng/L, n=36), B group (500 ng/L≤VB12<800 ng/L, n=71), and C group (800 ng/L≤VB12<1100 ng/L, n=13). The cognitive function of patients was evaluated using the Simple Montreal Cognitive Assessment (MoCA) scale. The prevalence of MCI was compared among the three groups. Logistic regression was performed to analyze the relative risks for MCI in elderly T2DM patients with different levels of vitamin B12. Results The incidence of MCI decreased with the increasing serum VB12 level. After adjusting for gender, age, total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), and low-density lipoprotein cholesterol (LDL-C), logistic regression results showed that with Group C as the reference group, the odds ratio ( O R) and corresponding 95% confidence interval ( C I) for MCI in Group A was 6.121 and 1.161-32.265, respectively. Conclusion Serum VB12 ranging from 200 ng/L to 500 ng/L is an independent risk factor for MCI in elderly T2DM patients.

Key words: diabetes mellitus, type 2, vitamin B12, mild cognitive impairment

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