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JACC:长期使用他汀类药物治疗,并不会增加老年性痴呆发生风险

2021-06-23 “心关注”公众号 “心关注”公众号

目前,他汀类药物是否会对老年人群认知功能造成影响,尚未定论。

目前,他汀类药物是否会对老年人群认知功能造成影响,尚未定论。

澳大利亚、美国学者合作分析了他汀类药物的使用与老年人认知功能下降、痴呆症的发生之间是否存在关联,已于近日将结果发表在了美国心脏病学会杂志《JACC》上。

研究者从既往一项阿司匹林随机对照研究中纳入18846例受试者,年龄≥65岁,女性占比56.4%,无既往心血管事件,无重大残疾,无痴呆症早期征象,随访时间4.7年。

其中,他汀组共5898例受试者,对照组(未使用他汀)12948例。经统计,他汀组受试者女性占比更高,平均受教育水平相对较低,抑郁量表评分更高,饮酒比例较低,存在痴呆症家族史的比例稍低,服用其他药物的比例较高,合并糖尿病、高血压、慢性肾病、肥胖的比例均更高。

01、痴呆症

随访后共统计到566例痴呆症,包括235例阿尔梅茨海默病(很可能)和331例混合性痴呆。

图1:对照组与他汀组、亲脂性与亲水性他汀类药物服用者之间的痴呆及其亚型发生例数及风险对比

经分析,与对照组相比,他汀组受试者全因痴呆症、阿尔梅茨海默病和混合性痴呆的发生风险,均未显着增高。

02、轻度认知功能障碍

380例受试者发生轻度认知功能障碍,包括84例遗忘型和296例非遗忘型。

图2:对照组与他汀组、亲脂性与亲水性他汀类药物服用者之间的轻度认知功能障碍及其亚分类发生例数及风险对比

相比对照组,他汀组受试者轻度认知功能障碍、遗忘型和非遗忘型的发生风险,均未显着增加。

03、认知功能评估变化

从基线期到随访期,他汀组与对照组在3MS、SDMT、COWAT、HVLT-R等认知功能相关评估的变化上,均无显着差异。

图3:对照组与他汀组、亲脂性与亲水性他汀组的基线期认知评估结果差异,及随访后的相对变化

04、对比亲水性/亲脂性他汀

在认知功能评分变化、痴呆症、轻度认知功能障碍及疾病亚型发生风险上,使用亲水性或亲脂性他汀类药物的患者间,并无显着差异。

05、LDL-C分层

在低密度脂蛋白胆固醇(LDL-C)各分层中,他汀类药物的使用与痴呆症、轻度认知功能障碍等之间,均无显着关联。

图4:各水平LDL-C分层组中,他汀类药物与痴呆症及其亚型的关联

另外,相比LDL-C水平最低分层(16-92 mg/dl),最高分层受试者(139-383 mg/dl)各结局事件的发生风险并未显着增高或降低。

该研究认为,对于65岁以上老年人群,他汀类药物的使用,与痴呆症、认知功能下降及轻度认知功能障碍无关。目前正在进行相关的随机对照临床试验,以验证上述结论。

原始出处:

Zhen Zhou, et al. Effect of Statin Therapy on Cognitive Decline and Incident Dementia in Older Adults. J Am Coll Cardiol. 2021 Jun, 77 (25) 3145–3156.

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    2021-10-20 hbwxf
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    2021-06-23 junJUN

    老年人痴呆何药可用??

    0

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