期刊
FRONTIERS IN NEUROENDOCRINOLOGY
卷 37, 期 -, 页码 146-157出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.yfrne.2014.11.004
关键词
Seasonality; Sheep; Structural plasticity; Adult neurogenesis; Neuroblast; Neurogenic niche; Reproduction; Metabolism; Hypothalamus; Hippocampus
资金
- Agence Nationale de la Recherche [ANR-09-JCJC-0049-01]
- Institut National de la Recherche Agronomique (INRA)
- la Region Centre
- Agence Nationale de la Recherche (ANR) [ANR-09-JCJC-0049] Funding Source: Agence Nationale de la Recherche (ANR)
To cope with variations in the environment, most mammalian species exhibit seasonal cycles in physiology and behaviour. Seasonal plasticity during the lifetime contributes to seasonal physiology. Over the years, our ideas regarding adult brain plasticity and, more specifically, hypothalamic plasticity have greatly evolved. Along with the two main neurogenic regions, namely the hippocampal subgranular and lateral ventricle subventricular zones, the hypothalamus, which is the central homeostatic regulator of numerous physiological functions that comprise sexual behaviours, feeding and metabolism, also hosts neurogenic niches. Both endogenous and exogenous factors, including the photoperiod, modulate the hypothalamic neurogenic capacities. The present review describes the effects of season on adult morphological plasticity and neurogenesis in seasonal species, for which the photoperiod is a master environmental cue for the successful programming of seasonal functions. In addition, the potential functional significance of adult neurogenesis in the mediation of the seasonal control of reproduction and feeding is discussed. (C) 2014 Elsevier Inc. All rights reserved.
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