Research

Hormonal

Skeletal muscle PPARγ is required for the maintenance of normal adiposity and hepatic insulin sensitivity, but not for insulin-stimulated glucose uptake in muscle itself.

For general health, maintaining healthy muscle PPARγ activity (through exercise and diet) may help prevent excess fat storage and liver insulin resistance, even if it doesn't directly change how muscles burn glucose during exercise. This highlights the importance of muscle health for overall metabolic balance.

GoodQualifiesHIGH confidence
MuPPARγKO mice developed excess adiposity despite reduced dietary intake... whole-body insulin resistance... primarily due to dramatic impairment in hepatic insulin action... insulin-stimulated glucose uptake in muscle was not impaired.
Andrew W. Norris et al. · Journal of Clinical Investigation · 2003

Why this rating

Robust genetic model with detailed metabolic phenotyping.

Source

Muscle-specific PPARγ-deficient mice develop increased adiposity and insulin resistance but respond to thiazolidinediones

Andrew W. Norris et al. · Journal of Clinical Investigation · 2003

DOI 10.1172/jci17305

mechanism_onlyCited 411×
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DOI resolved against Crossref · corpus check 2026-06-10

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