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激素替代疗法和认知:系统审查和元分析
E S LeBlanc1, J Janowsky, B K Chan
1Oregon Health Sciences University, 3181 SW Sam Jackson Park Rd, Mail Code HRC3, Portland, OR 97201-3098, USA. leblance@ohsu.edu
JAMA
|March 23, 2001
概括
激素替代疗法 (HRT) 可能有利于症状性绝经后妇女的认知,但预防痴呆症的证据受到研究质量的限制. 需要进一步的研究来澄清HRT.
科学领域:
- 神经科学是一个神经科学.
- 内分泌学 在内分泌学.
- 老年学是一门学科.
背景情况:
- 观察性研究表明,激素替代疗法 (HRT) 可能降低认知能力下降和痴呆风险.
- 关于HRT对绝经后妇女认知健康的影响存在相互矛盾的结果.
研究的目的:
- 系统地审查和评估关于HRT的研究,以预防健康的绝经后妇女的认知衰退和痴呆症.
主要方法:
- 在MEDLINE,HealthSTAR,PsychINFO和Cochrane图书馆搜索相关研究 (1966-2000年).
- 包括随机对照试验和对认知衰退的队列研究,以及对痴呆风险的队列/病例控制研究.
- 使用Jadad和美国预防服务工作组标准评估研究质量.
主要成果:
- 在有症状的更年期妇女中,HRT改善了特定的认知功能 (口头记忆,警,推理,运动速度),但不是无症状的妇女.
- 对观察性研究的分析表明,HRT使用与痴呆症风险降低有关 (OR,0.66;95% CI,0.53 - 0.82).
- 方法上的局限性,包括潜在的偏见和混因素,限制了对痴呆风险发现的解释.
结论:
- 对于经历更年期症状的女性来说,HRT可能会提供特定的认知益处.
- 虽然观察数据表明HRT可以降低痴呆风险,但重要的方法限制需要谨慎解释.
- 未来的研究应该集中于阐明HRT的特定认知效应,并解决研究设计的局限性.
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