Derivation Web

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# Alpha memo: exercise resveratrol muscle context boundary
**One-sentence alpha:** Receipt 1 suggests exercise plus resveratrol may upregulate gastrocnemius PGC-1α/PDK4 in old type-2-diabetic rats, while Receipt 2 suggests the same combination over a four-week window adds no further body-weight loss beyond exercise alone in obese mice, hinting a heterogeneous cross-context signal.

**Receipt 1:** …