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      标题:成人晚发性自身免疫糖尿病与自身免疫性甲状腺疾病的相关性研究
      作者:黄秉文 1,方咏红 1,卢颖瑜 2,郭春花 1,王运林 1
    (佛山市第二人民医院内分泌科 1、神经内科 2,广东 佛山 528000)
      卷次: 2015年26卷20期
      【摘要】 目的 探讨成人晚发性自身免疫糖尿病(LADA)与自身免疫性甲状腺疾病(AITD)的关系,并分析
LADA患者发生AITD的危险因素。方法 对80例LADA患者、80例2型糖尿病(T2DM)患者和80例健康对照者
进行游离三碘甲腺原氨酸(FT3)、血清游离甲状腺素(FT4)、血清超敏促甲状腺素(uTSH)、甲状腺过氧化物酶抗体
(TPO-Ab)、甲状腺球蛋白抗体(TG-Ab)检测。糖尿病患者还进行谷氨酸脱羧酶抗体(GADA)、胰岛素自身抗体
(IAA)、胰岛细胞抗体(ICA)检测。采用放免法检测TPO-Ab、TG-Ab、FT3、FT4,直接化学发光法检测uTSH,放射
配体法检测 GADA、IAA、ICA。随访 2年后对以上指标进行复查。结果 (1) LADA患者的基线 TG-Ab及
TPO-Ab阳性率分别为18.8%、21.3%,均高于T2DM患者的8.8%、13.8%和健康对照者的10.0%、12.5%,差异均有
统计学意义(P<0.05)。2年后随访,LADA患者的TG-Ab及TPO-Ab阳性率升至21.3%、23.8%,均高于T2DM患者
的10.0%、12.5%和健康对照者的8.8%、16.3%,差异均有统计学意义(P<0.05)。(2)与甲状腺自身抗体阴性者相比,
阳性者的LADA患者随访前后高滴度GADA (GADA≥0.3)所占比例较高(53.1% vs 22.9%和 46.9% vs 20.8%,P
均<0.05),随访前后 uTSH异常率更高(18.8% vs 6.3% 和 28.1% vs 8.3%,P均<0.05),女性比例更高(65.6% vs
27.1%,P<0.05),空腹及2 h C肽水平更低(P<0.05),身高体重指数更低(P<0.05),发病年龄更小(P<0.05),而甲状腺
疾病家族史及其他自身免疫疾病家族史比较则差异均无统计学意义(P>0.05)。(3)高滴度GADA的LADA患者
与低滴度的LADA患者比较,随访前后TG-Ab阳性率均较高(25.0% vs 15.4%和32.1% vs 15.4%,P均<0.05),随访
前后 TPO-Ab阳性率均较高(42.9% vs 9.6% 和 50.0% vs 9.6%,P均<0.05),随访前后甲状腺功能异常率较高
(35.7% vs 17.3%和42.9% vs 19.2%,P均<0.05),发病年龄更小(P<0.05),空腹及2 h C肽水平更低(P<0.05),而女性
比例及家族史比较则差异无统计学意义(P>0.05)。(4) Logistic回归分析显示,女性、高滴度GADA、入组时甲状
腺自身抗体(TPO-Ab、TG-Ab)阳性是LADA患者未来发生甲状腺功能异常的危险因素。结论 LADA患者,尤
其是高滴度GADA者,发生甲状腺自身免疫紊乱的风险高于T2DM及健康对照者;女性、高滴度GADA、甲状腺
自身抗体阳性是LADA患者将来发生甲状腺功能异常的危险因素;由于LADA有并发甲状腺功能异常的风险,
推荐在LADA患者中常规筛查甲状腺自身抗体。

      【关键词】 成人晚发性自身免疫糖尿病;自身免疫性甲状腺疾病;相关性

      【中图分类号】 R587.1 【文献标识码】 A 【文章编号】 1003—6350(2015)20—2991—05


Correlation study of autoimmune thyroid disease and latent autoimmune diabetes in adults.

HUANG Bing-wen 1,
FANG Yong-hong 1, LU Ying-yu 2, GUO Chun-hua 1, WANG Yun-lin 1. Department of Endocrinology 1, Department of
Neurology 2, the Second People's Hospital of Foshan, Foshan 528000, Guangdong, CHINA

【Abstract】 Objective To investigate the relationship between latent autoimmune diabetes in adults (LA-
DA) and autoimmune thyroid disease (AITD), and to analyze the risk factors for AITD in patients with LADA.
Methods Eighty patients of LADA, 80 patients of type 2 diabetes mellitus (T2DM), and 80 healthy subjects were
recruited. Physical examination was performed and sera were sampled for the measurement of thyroid peroxidase anti-
body (TPO-Ab), thyroglobulin antibody (TG-Ab), glutamic acid decarboxylase autoantibody (GADA), insulin autoan-
tibody (IAA), and islet cell antibody (ICA), free triiodothyronine (FT3), free thyroxine (FT4) and ultrasensitive thy-
roid-stimulating hormone (uTSH). After 2 years of follow-up, the above indexes were reexamined. Results (1) At
baseline, the positive rate of TPO-Ab and TG-Ab in patients of LADA (18.8%, 21.3%) was significantly higher than
those in patients of T2DM (8.8%, 13.8%, P<0.05) and healthy subjects (10.0%, 12.5%, P<0.05). After 2 years of fol-
low-up, the positive rate of TPO-Ab and TG-Ab in patients of LADA increased to 21.3% and 23.8%, which were high-
er than those in patients of T2DM (10.0%, 12.5%, P<0.05) and healthy subjects (8.8%, 16.3%, P<0.05). (2) Compared
with the patients of LADA without thyroid autoantibody, patients of LADA with thyroid autoantibody had higher pro-
portion of high titer GADA (GADA≥0.3) before or after followed-up (53.1% vs 22.9%, 46.9% vs 20.8%, P<0.05),
higher abnormal rates of uTSH before or after followed-up (18.8% vs 6.3%, 28.1% vs 8.3%, P<0.05), higher propor-

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