SF-1 expression in the hypothalamus is required for beneficial metabolic effects of exercise

T Fujikawa, CM Castorena, M Pearson, CM Kusminski… - Elife, 2016 - elifesciences.org
T Fujikawa, CM Castorena, M Pearson, CM Kusminski, N Ahmed, PK Battiprolu, KW Kim
Elife, 2016elifesciences.org
Exercise has numerous beneficial metabolic effects. The central nervous system (CNS) is
critical for regulating energy balance and coordinating whole body metabolism. However, a
role for the CNS in the regulation of metabolism in the context of the exercise remains less
clear. Here, using genetically engineered mice we assessed the requirement of
steroidogenic factor-1 (SF-1) expression in neurons of the ventromedial hypothalamic
nucleus (VMH) in mediating the beneficial effects of exercise on metabolism. We found that …
Exercise has numerous beneficial metabolic effects. The central nervous system (CNS) is critical for regulating energy balance and coordinating whole body metabolism. However, a role for the CNS in the regulation of metabolism in the context of the exercise remains less clear. Here, using genetically engineered mice we assessed the requirement of steroidogenic factor-1 (SF-1) expression in neurons of the ventromedial hypothalamic nucleus (VMH) in mediating the beneficial effects of exercise on metabolism. We found that VMH-specific deletion of SF-1 blunts (a) the reductions in fat mass, (b) improvements in glycemia, and (c) increases in energy expenditure that are associated with exercise training. Unexpectedly, we found that SF-1 deletion in the VMH attenuates metabolic responses of skeletal muscle to exercise, including induction of PGC-1α expression. Collectively, this evidence suggests that SF-1 expression in VMH neurons is required for the beneficial effects of exercise on metabolism.
DOI: http://dx.doi.org/10.7554/eLife.18206.001
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