Detailed stages of the cycle: CPT-1 (outer mitochondrial membrane): Acyl-CoA + L-carnitine Acyl-carnitine + CoA-SH Rate limiting enzyme Inhibited by malonyl-CoA Isoforms: CPT-1A (liver), CPT-1B (muscle), CPT-1C (brain) CACT (translocase): Transport of acylcarnitine into the matrix Antiport with free carnitine The only transporter for acylcarnitines CPT-2 (inner mitochondrial membrane): Acyl-carnitine + CoA-SH Acyl-CoA + L-carnitine Regeneration of acyl-CoA in the matrix Not regulated by malonyl-CoA -oxidation (matrix): Cyclic shortening of the acyl chain Products: acetyl-CoA, FADH2, NADH CPT-1 regulation Research on Cell Cultures L-carnitine tested on various cell types: Cardiomyocytes: main source of energy from -oxidation Myotubes (C2C12): skeletal muscle metabolism Hepatocytes: ketogenesis and gluconeogenesis Adipocytes: lipolysis and lipid metabolism Cancer cells: Warburg metabolism vs
Chronic tinnitus is anything that lasts longer than a few weeks
Participants were shown lists of words and, to encode them, were asked to identify whether the words were in capital or lowercase letters, which requires shallow or perceptual processing, or whether they represented objects that occurred in nature or were artificially made, which requires deep or semantic processing
WHO recommends screening for G6PD activity of all infants in countries with high prevalence of this deficiency
Medicare covers Wegovy for cardiovascular risk reduction only
1 February 2023
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