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Appendicular muscle mass and fasting triglycerides predict serum liver aminotransferases in young female collegiate athletes. | LitMetric

AI Article Synopsis

Article Abstract

Objective: We test the hypothesis that aspartate aminotransferase (AST) may be associated inversely with serum triglycerides (TG) and positively with high density lipoprotein (HDL) cholesterol in young athletes because athletes have larger amounts of muscle mass.

Research Design And Methods: Pearson's correlation coefficients were calculated between serum AST and alanine aminotransferase (ALT) and body composition identified by dual-energy X-ray absorptiometry, markers of insulin resistance, serum lipids, lipoproteins, apolipoproteins, adiponectin and leptin in 174 female collegiate athletes (18-22 years). Multivariate linear regression analyses were used to identify independent determinants of the aminotransferases.

Results: AST and ALT showed positive correlation with appendicular skeletal muscle mass (ASM) and height-adjusted ASM. In addition, ALT as well as AST showed inverse, not positive, association with fasting TG. Further, both AST and ALT showed positive associations with HDL cholesterol and apolipoprotein AI, a major apolipoprotein of HDL particles. Multivariate analysis revealed that height-adjusted ASM and TG (inverse) were independent determinants for AST and ALT. Further, fat mass index (inverse) and resting heart rate (inverse) predicted AST and apolipoprotein AI predicted ALT.

Conclusions: In young female collegiate athletes, both serum AST and ALT showed inverse association with fasting TG and positive association with apoAI, both of which may be mediated through positive association between the aminotransferases and ASM. The association between ALT and TG is opposite in direction in young athletes (inverse) and in the general population (positive).

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5841527PMC
http://dx.doi.org/10.1136/bmjdrc-2017-000498DOI Listing

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