MRI-derived brain age as a biomarker of ageing in rats: validation using a healthy lifestyle intervention
MRI-derived brain age as a biomarker of ageing in rats: validation using a healthy lifestyle intervention
复制标题
MRI 衍生的大脑年龄作为大鼠衰老的生物标志物:使用健康生活方式干预进行验证
DOI:
10.1101/2021.04.19.440433
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Brusini I
中科院分区:
文献类型:
--
作者:
Brusini I
The difference between brain age predicted from MRI and chronological age (the so-called BrainAGE) has been proposed as an ageing biomarker. We analyse its cross-species potential by testing it on rats undergoing an ageing modulation intervention. Our rat brain age prediction model combined Gaussian process regression with a classifier and achieved a mean absolute error (MAE) of 4.87 weeks using cross-validation on a longitudinal dataset of 31 normal ageing rats. It was then tested on two groups of 24 rats (MAE= 9.89 weeks, correlation coefficient= 0.86): controls vs. a group under long-term environmental enrichment and dietary restriction (EEDR). Using a linear mixed-effects model, BrainAGE was found to increase more slowly with chronological age in EEDR rats (p= 0.015 for the interaction term). Cox regression showed that older BrainAGE at 5 months was associated with higher mortality risk (p= 0.03). Our findings suggest that lifestyle-related prevention approaches may help to slow down brain ageing in rodents and the potential of BrainAGE as a predictor of age-related health outcomes.
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影响因子:
4.2
作者:
Speisman RB;Kumar A;Rani A;Pastoriza JM;Severance JE;Foster TC;Ormerod BK
通讯作者:
Ormerod BK
DOI:
10.3390/s22208077
发表时间:
2022-10-21
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
作者:
Han J;Kim SY;Lee J;Lee WH
通讯作者:
Lee WH
影响因子:
2.7
作者:
Wood TC;Simmons C;Hurley SA;Vernon AC;Torres J;Dell'Acqua F;Williams SC;Cash D
通讯作者:
Cash D
影响因子:
6.9
作者:
Teresa Lee;P. Sachdev
通讯作者:
P. Sachdev
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
T. Clancy
通讯作者:
T. Clancy