Title : TNF-alpha acts via TNFR1 and muscle-derived oxidants to depress myofibrillar force in murine skeletal muscle.

Pub. Date : 2008 Mar

PMID : 18187611






1 Functional Relationships(s)
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1 Experiments showed that a single intraperitoneal dose of TNF (100 microg/kg) increased cytosolic oxidant activity (P < 0.05) and depressed maximal force of male ICR mouse diaphragm by approximately 25% within 1 h, a deficit that persisted for 48 h. Pretreating animals with the antioxidant Trolox (10 mg/kg) lessened oxidant activity (P < 0.05) and abolished contractile losses in TNF-treated muscle (P < 0.05). 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid tumor necrosis factor Mus musculus