Muscle-Derived IL-6 and Lipid Metabolism
Myokines and Skeletal Muscle Endocrine Signaling
Muscle-Derived IL-6 and Lipid Metabolism
Exercise-associated IL-6 can influence lipid metabolism, but outcomes depend on tissue, timing and metabolic state.
Evidence for muscle-derived signals
A candidate myokine requires evidence of muscle production and release. Endocrine action additionally requires biologically relevant delivery and a response at a distant target. Expression within muscle or an increase in blood alone does not establish this entire chain.
Interpreting the mechanism
An acute physiological pulse differs from chronic inflammatory exposure.
Interpreting exercise studies
Sampling time, muscle damage, other tissue sources and assay specificity affect measured exerkines. Animal or cell findings can identify mechanisms but do not guarantee a proven human performance benefit. Local action may be important even without a detectable circulating rise.
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