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Reduced cerebellar gray matter is a neural signature of physical frailty.


ABSTRACT: Physical frailty has been recognized as a clinical syndrome resulting from declines in various physiological systems; however, the role of the central nervous system in the pathophysiology of frailty remains unclear. The I-Lan Longitudinal Aging Study randomly sampled community-dwelling people aged 50 or older for a brain magnetic resonance imaging study. All participants were assessed for frailty status (robust, prefrail, and frail) based on the presence of five frailty components: slow walking speed, muscle weakness, low physical activity, exhaustion and weight loss (Fried criteria). Gray matter volume (GMV) changes associated with frailty status and individual frailty components were examined. Overall, 456 participants (64.0?±?8.5 years, 47.6% women) were included in this study. The prefrail (n?=?178, 39.0%) and frail (n?=?19, 4.2%) subjects were grouped for analysis. The prefrail-frail group showed reduced GMV, compared to the robust group (n?=?259, 56.8%), in the cerebellum, hippocampi, middle frontal gyri, and several other cerebral regions (corrected P?

SUBMITTER: Chen WT 

PROVIDER: S-EPMC6869536 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature

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Reduced cerebellar gray matter is a neural signature of physical frailty.

Chen Wei-Ta WT   Chou Kun-Hsien KH   Liu Li-Kuo LK   Lee Pei-Lin PL   Lee Wei-Ju WJ   Chen Liang-Kung LK   Wang Pei-Ning PN   Lin Ching-Po CP  

Human brain mapping 20150619 9


Physical frailty has been recognized as a clinical syndrome resulting from declines in various physiological systems; however, the role of the central nervous system in the pathophysiology of frailty remains unclear. The I-Lan Longitudinal Aging Study randomly sampled community-dwelling people aged 50 or older for a brain magnetic resonance imaging study. All participants were assessed for frailty status (robust, prefrail, and frail) based on the presence of five frailty components: slow walking  ...[more]

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