Decreased circulating leptin and increased neuropeptide Y gene expression are implicated in food deprivation-induced hyperactivity in striped hamsters, Cricetulus barabensis

Physiological and behavioral adjustments of small mammals are important strategies in response to variations in food availability. Although numerous of studies have been carried out in rodents, behavioral patterns in response to food deprivation and re-feeding (FD–RF) are still inconsistent. Here we...

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Bibliographic Details
Published in:Hormones and behavior 2014-04, Vol.65 (4), p.355-362
Main Authors: Zhao, Zhi-Jun, Chen, Ke-Xin, Liu, Yong-An, Wang, Chun-Ming, Cao, Jing
Format: Article
Language:English
Subjects:
Animal behavior
Animals
Behavior
Behavior, Animal - drug effects
Behavior, Animal - physiology
Behavioral psychophysiology
Biological and medical sciences
Body fat
Cricetulus - metabolism
Food deprivation
Food Deprivation - physiology
Food intake
Fundamental and applied biological sciences. Psychology
Gene expression
Gene Expression Regulation - drug effects
Gene Expression Regulation - physiology
Hormones
Hormones and behavior
Hypothalamus - metabolism
Leptin
Leptin - blood
Leptin - pharmacology
Motor Activity - drug effects
Motor Activity - physiology
Neuropeptide Y
Neuropeptide Y - metabolism
Neuropeptides
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Random Allocation
Rodents
Striped hamster
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Summary:Physiological and behavioral adjustments of small mammals are important strategies in response to variations in food availability. Although numerous of studies have been carried out in rodents, behavioral patterns in response to food deprivation and re-feeding (FD–RF) are still inconsistent. Here we examined effects of a 24h FD followed by RF on general activity, serum leptin concentrations and gene expression of orexigenic and anorexigenic hypothalamic neuropeptides in striped hamsters (Cricetulus barabensis) with/without leptin supplements. The time spent on activity was increased by 2.5 fold in FD hamsters compared with controls fed ad libitum (P
ISSN:0018-506X
1095-6867
DOI:10.1016/j.yhbeh.2014.03.001