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  • Title: A role for leptin-regulated neurocircuitry in subordination stress.
    Author: Flak JN.
    Journal: Physiol Behav; 2017 Sep 01; 178():144-150. PubMed ID: 27887997.
    Abstract:
    The visible burrow system produces a distinct combination of psychological and metabolic stress on, primarily, subordinate individuals that results in pronounced physiologic and behavioral dysfunction. However, the mechanisms underlying the consequences of chronic subordination stress are largely unknown. The simplest mechanistic explanation is that adaptations within brain systems with overlapping functions of both psychological and metabolic control provide immediate benefits that result in lasting susceptibility to diseases, disorders, and increased mortality rates in subordinates. Circuits regulated by leptin adapt to fluctuating levels of energy storage, such that the loss of leptin action within leptin-regulated neurocircuitry results in dysfunction in physiologic and behavioral systems implicated in the consequences of chronic social subordination. Thus, leptin-regulated neurocircuitry may provide a window into understanding the consequences of social subordination stress. This review examines the neural systems of leptin physiology implicated in social subordination stress: energy balance, motivation, HPA axis, and glycemic control.
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