血清同型半胱氨酸、维生素B 12和叶酸水平与妊娠期亚临床甲状腺功能减退的相关性

目的：分析血清同型半胱氨酸、维生素B12和叶酸水平与妊娠期亚临床甲状腺功能减退的相关性。方法选择2014年1月至2015年11月在河南省南阳市中心医院产科诊断为妊娠期亚临床甲状腺功能减退孕妇150例作为观察组，选择同期妊娠期甲状腺功能正常孕妇150例作为对照组。比较两组孕妇的血清促甲状腺激素、游离甲状腺激素、游离三碘甲状腺原氨酸、同型半胱氨酸、血清维生素B12、叶酸水平，分析血清促甲状腺激素以及同型半胱氨酸的相关血清指标。结果观察组的同型半胱氨酸水平、促甲状腺激素水平高于对照组（P＜0．05），维生素B12和叶酸水平低于对照组（P＜0．05）。血清促甲状腺激素与同型半胱氨酸水平呈正相关（ P＜0．05），血清促甲状腺激素与维生素B12和叶酸无明显相关性（ P＞0．05）。血清同型半胱氨酸水平与促甲状腺激素水平呈正相关（P＜0．05），血清同型半胱氨酸水平与叶酸水平呈负相关（P＜0．05），血清同型半胱氨酸水平与维生素B12无明显相关性（ P＞0．05）。结论妊娠期亚临床甲状腺功能减退和同型半胱氨酸、维生素B12和叶酸水平有一定的相关性。

Correlation of serum homocysteine,vitamin B12 and folate levels and subclinical hypothyroidism in pregnancy

Objective To analysis the correlation of Serum homocysteine ,vitamin B12 and folate levels and subclinical hypot‐hyroidism in pregnancy .Methods 150 cases of subclinical hypothyroidism during pregnancy were selected as the experimental group ,and 150 cases of pregnant women with normal thyroid function were collected as the control group .Compared the serum thy‐roid‐stimulating hormone ,free thyroid hormones ,three free triiodothyronine ,homocysteine ,serum vitamin B12 ,folic acid levels of pregnant women in the two groups ,and analyzed the related serum markers of thyroid‐stimulating hormone and serum homocys‐teine .Results The homocysteine levels in experimental group was higher than that of control group(P<0 .05) ,the vitamin B12 and folate levels in experimental group were lower than that of control group (P<0 .05) ,the thyroid‐stimulating hormone levels in ex‐perimental group was significantly higher than that of control group (P<0 .05) .Serum thyroid‐stimulating hormone and homocys‐teine levels were positively correlated (P<0 .05) ,serum thyroid‐stimulating hormone and vitamin B12 and folic acid had no signifi‐cant correlation (P>0 .05) .Serum homocysteine and thyroid stimulating hormone levels were positively correlated (P<0 .05) ,ser‐um homocysteine and folate levels were negatively correlated (P<0 .05) ,serum homocysteine levels and vitamin B12 were not corre‐lated (P> 0 .05) .Conclusion Subclinical hypothyroidism during pregnancy have some relevance with homocysteine ,vitamin B12 and folate levels .