Research
Hormonal
Estrogen rapidly activates AMP-activated protein kinase (AMPK) in skeletal muscle via non-genomic mechanisms, promoting fat oxidation and down-regulating lipogenesis.
Estrogen helps your muscles burn fat quickly by turning on an energy sensor called AMPK. This happens fast, suggesting estrogen has immediate metabolic benefits beyond long-term structural changes.
GoodSupportsHIGH confidence
Remarkably, estrogen rapidly (within minutes) activated AMPK in a time- and dose-dependent manner... This effect was completely inhibited by ICI 182,780, a selective antagonist of estrogen receptors.
Why this rating
Strong mechanistic evidence using cell lines and tissue lysates with receptor antagonists.
Source
Estrogen Regulation of Adiposity and Fuel Partitioning
Tara M. D'Eon et al. · Journal of Biological Chemistry · 2005
DOI 10.1074/jbc.m507339200
mechanism_only · n=9Cited 511×
Read the paper DOI resolved against Crossref · corpus check 2026-06-10
More from this paper
- Estrogen (E2) reduces adiposity and adipocyte size independently of energy intake by down-regulating lipogenic genes (SREBP-1c, FAS, ACC-1) and up-regulating lipid oxidation pathways (PPAR-alpha, AMPK) in skeletal muscle and adipose tissue.Good
- Estrogen increases perilipin protein levels in adipocytes, which suppresses basal lipolysis but significantly enhances catecholamine-stimulated lipolysis.Good
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