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1.重庆医科大学附属第一医院:精神科,重大脑疾病与衰老教育部重点实验室,精神医学中心,重庆
2.重庆市精神卫生中心,重庆
胡华,E-mail:huhuateam@126.com
收稿:2025-08-27,
修回:2025-10-29,
录用:2025-11-02,
纸质出版:2025-11-30
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艾立英,张庆辉,王语含,等.代谢综合征相关认知障碍的潜在机制:促甲状腺激素在精神分裂症患者中的中介效应[J].陆军军医大学学报,2025,47(22):2814-2823.DOI:10.16016/j.2097-0927.202508082.
AI L Y,ZHANG Q H,WANG Y H,et al.Potential mechanism of metabolic syndrome related cognitive impairment: Mediation effect of thyroid-stimulating hormone in schizophrenia patients[J].J Army Med Univ,2025,47(22):2814-2823.DOI:10.16016/j.2097-0927.202508082.
艾立英,张庆辉,王语含,等.代谢综合征相关认知障碍的潜在机制:促甲状腺激素在精神分裂症患者中的中介效应[J].陆军军医大学学报,2025,47(22):2814-2823.DOI:10.16016/j.2097-0927.202508082. DOI:
AI L Y,ZHANG Q H,WANG Y H,et al.Potential mechanism of metabolic syndrome related cognitive impairment: Mediation effect of thyroid-stimulating hormone in schizophrenia patients[J].J Army Med Univ,2025,47(22):2814-2823.DOI:10.16016/j.2097-0927.202508082. DOI:
目的
2
探究伴代谢综合征的精神分裂症(schizophrenia,SCZ)患者甲状腺激素水平与认知功能的相关性,以及甲状腺激素水平在代谢综合征(metabolic syndrome,MetS)相关指标与认知功能间的中介效应。
方法
2
采用横断面研究,纳入2023年8月至2024年12月在重庆市精神卫生中心门诊和住院的SCZ患者共120例(伴MetS者40例,不伴MetS者80例),及健康对照受试者80例。采集甲功五项(促甲状腺激素、三碘甲状腺原氨酸、甲状腺素、游离三碘甲状腺原氨酸和游离甲状腺素)、MetS相关指标(血糖、甘油三酯、高密度脂蛋白胆固醇及腰围)、阳性和阴性症状量表(Positive and Negative Symptoms Scale,PANSS)及蒙特利尔认知评估量表(Montreal Cognitive Assessment,MoCA)得分。采用单因素方差分析或Kruskal-Wallis秩和检验对三组间一般指标的差异进行探讨,事后分析采用LSD检验或Bonferroni检验;采用Pearson检验对代谢综合征组甲状腺激素水平与代谢指标、量表得分进行相关性分析。
结果
2
MetS组的游离甲状腺素(free thyroxine,FT4)和MoC
A得分低于不伴代谢综合征(non-metabolic syndrome,non-MetS)组(
P
<
0.05),而促甲状腺激素(thyroid-stimulating hormone,TSH)和PANSS阴性症状得分高于non-MetS组受试者(
P
<
0.05)。相关性分析发现,MetS组的TSH与甘油三酯(triglyceride, TG)(
r
=0.672,
P
<
0.001)、PANSS阴性症状得分呈正相关关系(
r
=0.458,
P
<
0.05);TSH与高密度脂蛋白胆固醇(high-density lipoprotein cholesterol,HDL-C)(
r
=-0.377,
P
=0.017)、MoCA得分呈负相关关系(
r
=-0.667,
P
<
0.001);FT4与MoCA呈正相关关系(
r
=0.534,
P
<
0.001)。non-MetS组的TSH与HDL-C呈负相关关系(
r
=-0.236,
P
=0.036),TSH与阴性呈正相关关系(
r
=0.267,
P
=0.017);T3与腰围呈正相关关系(
r
=0.268,
P
=0.017);FT4与HDL-C(
r
=-0.207,
P
=0.067)和MoCA无相关性关系(
r
=0.216,
P
=0.055)。中介效应分析表明,TSH在TG与MoCA得分之间起部分中介作用,中介效应占总效应的29.91%。在non-MetS组的中介效应不显著。
结论
2
TSH的异常升高可能是MetS影响SCZ患者认知功能的重要桥梁,为SCZ患者的认知障碍的潜在机制提供了新的见解。
Objective
2
To investigate the correlation between thyroid hormone levels and cognitive function in schizophrenia (SCZ) patients with metabolic syndrome (MetS)
as well as the mediating role of thyroid hormones in the relationship between MetS-related indicators and cognitive function.
Methods
2
A cross-sectional trial was conducted on 120 SCZ inpatients and outpatients (40 cases of MetS and 80 cases of non-MetS) and 80 healthy controls admitted in the Chongqing Mental Health Center from August 2023 to December 2024. Thyroid function indicators [Thyroid-stimulating hormone (TSH)
triiodothyronine (T3)
thyroxine (T4)
free triiodothyronine (FT3)
and free thyroxine (FT4)]
MetS-related parameters [blood glucose
triglycerides (TG)
high-density lipoprotein cholesterol (HDL-C)
and waist circumference]
Positive and Negative Syndrome Scale (PANSS) score
and Montreal Cognitive Assessment (MoCA) scores were collected. One-way ANOVA or Kruskal-Wallis rank sum test was applied to analyze the differences among the 3 groups
and LSD test or Bonferroni correction was performed for post hoc analysis. Pearson correlation analysis was conducted to assess the relationship between thyroid hormone levels and metabolic parameters as well as cognitive/clinical scale scores (MoCA
PANSS) in the MetS group.
Results
2
The MetS group exhibited significantly lower FT4 level (
P
<
0.05) and MoCA score (
P
=0.001)
but higher TSH level (
P
<
0.05) and PANSS negative symptom score (
P
<
0.001) when compared to the non-MetS group. Correlation analysis indicated that in the MetS group
TSH level was positively correlated with TG (
r
=0.672
P
<
0.001) and PANSS negative symptom score (r=0.458
P
<
0.05)
and negatively with HDL-C (
r
=-0.377
P
=0.017) and MoCA score (
r
=-0.667
P
<
0.001); FT4 level was positively correlated with MoCA score (
r
=0.534
P
<
0.001). In the non-MetS group
TSH level was positively correlated with PANSS negative symptom score (
r
=0.267
P
=0.017) and negatively with HDL-C (
r
=-0.236
P
=0.036)
T3 was positively with waist circumference (
r
=0.268
P
=0.017). No correlation was observed in FT4 level with HDL-C (
r
=-0.207
P
=0.067) or MoCA score (
r
=0.216
P
=0.055). Mediation analysis revealed that TSH partially mediated the association between TG and MoCA score
with a mediation effect accounting for 29.91% of the total effect. The mediating effect was not significant in the non-MetS group.
Conclusion
2
Abnormal elevation of TSH may serve as a critical link between MetS and cognitive impairment in SCZ patients
which providing novel insights into the mechanisms underlying cognitive dysfunction in the patients.
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