Cisplatin is able to bind directly to the sulfhydryl groups of antioxidant enzymes in the cochlea, leading to the inactivation of the enzymes, and it also decreases the levels of glutathione and NADPH (Nicotinamide Adenine Dinucleotide Phosphate), both of which are essential for the activity of the enzyme glutathione peroxidase (Ramkumar et al., 2021), xanthine oxidase (XO) (Tan and Vlajkovic, 2023), and increases the production of superoxide radicals
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Laboratories typically employ reversed-phase HPLC (RP-HPLC) for purity determination, electrospray ionization mass spectrometry (ESI-MS) for intact mass confirmation, and LC-MS/MS peptide mapping for sequence and modification verification
Before and After Photos How do GLP-1s work
American Journal of Physiology - Endocrinology And Metabolism