Hypertension and obesity moderate the relationship between β-amyloid and cognitive decline in midlife.

Hypertension and obesity moderate the relationship between β-amyloid and cognitive decline in midlife.
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DOI:
10.1016/j.jalz.2018.09.008
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发表时间:
2019-03
期刊:
Alzheimer's & dementia : the journal of the Alzheimer's Association
影响因子:
--
通讯作者:
Johnson SC
Johnson SC
中科院分区:
其他
文献类型:
--
作者:
Clark LR;Koscik RL;Allison SL;Berman SE;Norton D;Carlsson CM;Betthauser TJ;Bendlin BB;Christian BT;Chin NA;Asthana S;Johnson SC

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This study tested if central obesity, hypertension, or depressive symptoms moderated the relationship between beta-amyloid (Aβ) and longitudinal cognitive performance in late middle-aged adults enriched for Alzheimer’s disease (AD) risk. Participants (n=207; ages=40–70; 73% parental AD) in the Wisconsin Registry for Alzheimer’s Prevention study completed 3+ neuropsychological evaluations and a [11C]PiB PET scan or lumbar puncture. Linear mixed-effects regression models tested interactions of risk factor x Aβ x visit age on longitudinal Verbal Learning & Memory (VLM) and Speed & Flexibility (SF) factor scores. The relationship between Aβ and VLM decline was moderated by hypertension (χ2(1) = 3.85, p = .04) and obesity (χ2(1) = 6.12, p = .01); those with both elevated Aβ and the risk factor declined at faster rates than those with only elevated Aβ or elevated risk factors. In this cohort, hypertension and obesity moderated the relationship between Aβ and cognitive decline.
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