Age&Ageing:我国学者:注意了——中老年甲状腺功能变化居然与颈动脉硬化有关!

2022-01-31 MedSci原创 MedSci原创

甲状腺激素对心肌、外周循环系统和交感神经系统有着重要影响。

甲状腺激素对心肌、外周循环系统和交感神经系统有着重要影响。主要改变包括:增加心率、心肌收缩力、收缩压和平均肺动脉压、心输出量、舒张期松弛功能以及心肌耗氧量。降低全身血管阻力和舒张压。

既往研究表明,甲状腺功能与心脏和血管之间存在关联。然而,目前仍不清楚甲状腺功能的纵向趋势是否有助于动脉粥样硬化的发展。为此,来自我国医学科学院放射医学研究所和北京协和医学院的专家进行了一项队列研究,以考察中年和老年健壮受试者的甲状腺功能纵向趋势与颈动脉粥样硬化(CA)的关系。结果发表在Age&Ageing杂志上。

这项队列研究的参与者是从中国天津的天津慢性低度系统性炎症和健康队列研究中招募的。采用化学发光免疫法测量游离三碘甲状腺原氨酸(FT3)、甲状腺素(FT4)和促甲状腺激素(TSH)。使用颈动脉超声检查评估CA。随访期间每年对甲状腺功能和超声检查进行评估。多变量的Cox比例危害回归模型被用来评估甲状腺功能和发生CA之间的关联。

共有3181名参与者被纳入队列研究中。在7762人年的随访中,944人患上了CA,CA的发病率为122/1000人年。FT3、FT4每增加1个单位,完全调整后的CA风险分别增加34%、和22%(HR=1.34,1.22-1.47;HR=1.22,1.19-1.26),而TSH则没有影响(HR=0.92,0.77-1.09)(P<0.0001,<0.0001和=0.32)。

甲状腺激素对心血管影响的示意图

此外,研究人员观察到FT3和FT4的平均水平与发生的CA之间有类似的明显关联。然而,基线甲状腺功能与发病的CA没有关系。

这些发现表明,中老年人甲状腺激素的平均水平偏高与发生CA的风险较高有关。

 

参考文献:

Association of longitudinal trends in thyroid function with incident carotid atherosclerosis in middle-aged and older euthyroid subjects: the Tianjin Chronic Low-Grade Systemic Inflammation and Health (TCLSIH) cohort study, Age and Ageing, Volume 51, Issue 1, January 2022, afab276, https://doi.org/10.1093/ageing/afab276

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    2022-02-03 jiazhoudexue

    怎么会有这样的结果呢?病例的选择太笼统,中年和老年甲状腺功能肯定是不一样的,在老年阶段,甲状腺功能减退更多见于亢进,这并不妨碍他们一早就患上CA,甚至更早!

    0

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ERJ Open Res:特发性肺动脉高压伴甲状腺功能障碍的临床特征和长期生存:来自全国多中心前瞻性研究的见解

具有临床甲亢和甲减的IPAH患者在血流动力学和生存方面均优于没有甲状腺功能异常的患者,而亚临床甲减患者在血流动力学和生存方面与后者相似。

BMC Pulm Med:甲状腺功能减退和肺癌之间的因果关系!

甲状腺功能减退在遗传上与肺癌有保护性因果关系。此外,甲状腺功能减退对肺腺癌和肺鳞癌都有保护作用。但仍需要进一步的研究来阐明其潜在的机制。

Lancet子刊:什么是“最健康”的甲状腺功能?

近期发表于The Lancet Diabetes & Endocrinology的一项研究,旨在评估TSH和FT4与心血管疾病和死亡率复合风险之间的相关性,并根据风险评估进一步确定甲状腺功能最佳健康范

定义“最健康”的甲状腺功能,只要2项指标满足这些条件即可:《柳叶刀》子刊

研究旨在评估TSH和FT4与心血管疾病和死亡率复合风险之间的相关性,并根据风险评估进一步确定甲状腺功能最佳健康范围。

甲状腺功能与卵巢储备功能是否有关联?

本研究分析TSH水平正常年轻不孕女性甲状腺功能与卵巢储备功能间的关联,以期为DOR相关因素的评估提供新的思路。

Endocr Metab Immune Disord Drug Targets:2型糖尿病患者血清铁与甲状腺功能的关系

甲状腺激素是细胞增殖、分化和正常代谢、生长发育所必需的,本研究的主要目的是确定2型糖尿病(T2DM)患者血清铁与甲状腺功能的关系。