Circadian rhythms in SAMP8: a longitudinal study of the effects of age and experience.
Circadian rhythms in SAMP8: a longitudinal study of the effects of age and experience.
复制标题
SAMP8 中的昼夜节律:年龄和经验影响的纵向研究。
DOI:
10.1016/s0197-4580(03)00029-0
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发表时间:
2004
影响因子:
4.2
通讯作者:
McAuley,JDevin
中科院分区:
文献类型:
--
作者:
Pang,KevinCH;Miller,JonathanP;McAuley,JDevin
Age-related effects on circadian rhythms include reductions of rhythm amplitude, alterations in re-entrainment, and increased fragmentation. Currently, the pattern of these changes across an individuals’ lifespan is unknown. The present study used a cross-sequential experimental design to determine the pattern of circadian rhythm changes, identify predictors of later circadian rhythm disruption, and assess the effect of prior run-wheel experience on circadian rhythms. Run-wheel activity was assessed in senescence-accelerated mice (SAMP8) at 2, 7, and 12 months of age. Age-related changes included decrease of run-wheel activity, decrease in circadian rhythm amplitude, increase in proportion of light activity, and increase in split activity rhythms. Proportion of light activity at 2 months was a good predictor of circadian rhythm disruption at 7 months. Run-wheel experience increased overall activity and decreased proportion of light activity, but did not alter rhythm amplitude or period. These results demonstrate that aging produces several patterns of circadian rhythm changes, describe predictive measures of future rhythm disruptions, and suggest an intervention to reduce circadian rhythm disruptions.
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DOI:
10.1007/978-1-4684-3294-7
发表时间:
1974
期刊:
European journal of biochemistry
影响因子:
--
作者:
O. Sperling;A. Vries;J. Wyngaarden
通讯作者:
J. Wyngaarden
DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
C. Suelter
通讯作者:
C. Suelter
DOI:
10.1139/o73-140
发表时间:
1973
期刊:
Canadian journal of biochemistry
影响因子:
--
作者:
L. Brox
通讯作者:
L. Brox
DOI:
10.1016/s0021-9258(17)33905-4
发表时间:
1976
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
V. Schultz;J. Lowenstein
通讯作者:
J. Lowenstein
DOI:
10.1042/bj2460263
发表时间:
1987
期刊:
The Biochemical journal
影响因子:
--
作者:
Patrick J. Casey;John M. Lowenstein
通讯作者:
John M. Lowenstein