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Neuroprotective Biomarkers and Cognitive Function in a Long-Term Prospective Population-based Study of Aging US Adults.
Alzheimer Disease & Associated Disorders ( IF 2.1 ) Pub Date : 2019-08-02 , DOI: 10.1097/wad.0000000000000341
Adam J Paulsen 1 , Carla R Schubert 1 , Alex Pinto 1 , Cynthia M Carlsson 2, 3 , Richard J Chappell 4, 5 , Mary E Fischer 1 , Barbara E K Klein 1 , Ronald Klein 1 , Michael Y Tsai 6 , Karen J Cruickshanks 1, 7
Affiliation  

BACKGROUND Relationships between brain-derived neurotrophic factor (BDNF), insulin-like growth factor (IGF-1), aldosterone, and cognition in aging were evaluated in the population-based Epidemiology of Hearing Loss Study (1993 to present). METHODS Beginning in 1998 to 2000, cognitive impairment was assessed by report of physician diagnoses and the Mini-Mental State Examination. In 2009 to 2010 and 2013 to 2016, information was collected on diagnosis of mild cognitive impairment/dementia. Decline in cognitive function was assessed by principal component analysis from additional tests administered during 2009 to 2010 and 2013 to 2016. BDNF, IGF-1, and aldosterone were measured in serum collected in 1998 to 2000. RESULTS There were 1970 participants (mean age=66.9 y; 59.1% female) without cognitive impairment at baseline. Among women, low BDNF was associated with 16-year incident cognitive impairment [hazard ratio=1.76; 95% confidence interval (CI)=1.04, 2.98]. Among men, increasing IGF-1 was associated with decreased risk [per SD: relative risk (RR)=0.57; 95% CI=0.35, 0.92], whereas increasing aldosterone levels were associated with increased risk (per SD: RR=1.28; 95% CI=1.01, 1.62) for 5-year incident mild cognitive impairment/dementia. Overall, low BDNF was associated with increased risk (RR=1.52; 95% CI=1.02, 2.26) for 5-year cognitive decline. CONCLUSION Low levels of serum BDNF and IGF-1 were associated with poorer cognition during aging. There may be differential biomarker effects by sex.

中文翻译:

在长期的基于人群的美国成年人的长期前瞻性研究中,神经保护性生物标志物和认知功能。

背景技术在基于人群的听力损失流行病学研究(1993年至今)中,评估了脑源性神经营养因子(BDNF),胰岛素样生长因子(IGF-1),醛固酮与衰老认知之间的关系。方法从1998年至2000年,通过医师诊断报告和迷你精神状态检查对认知障碍进行评估。在2009年至2010年以及2013年至2016年,收集了有关轻度认知功能障碍/痴呆症诊断的信息。通过主成分分析评估了2009年至2010年以及2013年至2016年进行的其他测试的认知功能下降。在1998年至2000年收集的血清中测量了BDNF,IGF-1和醛固酮。结果有1970名参与者(平均年龄= 66.9岁;女性占59.1%,基线时没有认知障碍。在女性中 低BDNF与16年事件认知障碍相关[危险比= 1.76;95%置信区间(CI)= 1.04,2.98]。在男性中,IGF-1升高与风险降低有关[每个SD:相对风险(RR)= 0.57;95%CI = 0.35,0.92],而醛固酮水平升高与5年事件轻度认知障碍/痴呆的风险增加(根据SD:RR = 1.28; 95%CI = 1.01,1.62)相关。总体而言,低BDNF与5年认知功能下降的风险增加相关(RR = 1.52; 95%CI = 1.02,2.26)。结论血清BDNF和IGF-1水平低与衰老过程中的认知能力差有关。性别可能会产生不同的生物标志物作用。IGF-1增加与风险降低有关[每个SD:相对风险(RR)= 0.57;95%CI = 0.35,0.92],而醛固酮水平升高与5年事件轻度认知障碍/痴呆的风险增加(根据SD:RR = 1.28; 95%CI = 1.01,1.62)相关。总体而言,低BDNF与5年认知功能下降的风险增加相关(RR = 1.52; 95%CI = 1.02,2.26)。结论血清BDNF和IGF-1水平低与衰老过程中的认知能力差有关。性别可能会产生不同的生物标志物作用。IGF-1增加与风险降低有关[每个SD:相对风险(RR)= 0.57;95%CI = 0.35,0.92],而醛固酮水平升高与5年事件轻度认知障碍/痴呆的风险增加(根据SD:RR = 1.28; 95%CI = 1.01,1.62)相关。总体而言,低BDNF与5年认知功能下降的风险增加相关(RR = 1.52; 95%CI = 1.02,2.26)。结论血清BDNF和IGF-1水平低与衰老过程中的认知能力差有关。性别可能会产生不同的生物标志物作用。26)为期5年的认知能力下降。结论血清BDNF和IGF-1水平低与衰老过程中的认知能力差有关。性别可能会产生不同的生物标志物作用。26)为期5年的认知能力下降。结论血清BDNF和IGF-1水平低与衰老过程中的认知能力差有关。性别可能会产生不同的生物标志物作用。
更新日期:2019-11-01
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