L carnitine extenuates endocrine disruption, inflammatory burst and oxidative stress in carbendazim challenged male rats via upregulation of testicular StAR and FABP9, and downregulation of P38 MAPK pathways ScienceDirect Androgen receptor density plays a meaningful role in muscle anabolism because it determines how strongly a muscle fiber responds to androgen signaling. Gabriel Alizaidy, MD, MS L Carnitine Linus Pauling Institute Oregon State University Targeting Skeletal Muscle Dysfunction With L Carnitine for the Treatment of Patients With Chronic Obstructive Pulmonary Disease In Vivo L carnitine exerts a nutrigenomic effect via direct modulation of nuclear receptor signaling in adipocytes, hepatocytes and SKMC, demonstrating its nutritional impact ScienceDirect