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Consequently, the majority of these inhibitors have yet to meet the stringent criteria necessary for clinical utilisation, predominantly remaining at the preclinical research stage

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Prx3 homodimer has a redox-sensitive cysteine that upon reaction with H 2 O 2 is oxidized to Cys-SOH, which then reacts with neighboring Cys-SH of the other subunit to form an intermolecular disulfide that can be readily reduced by thioredoxin reductase 2 (TrxRD2

however, senescent cells infamously secrete high levels of pro-inflammatory cytokines, chemokines, and extracellular matrix-degrading proteins that negatively impact the extracellular environment and induce spread of senescence to non-senescent cells (29-32)

Mechanisms Specific to Melasma In melasma treatment, the mesotherapy cocktail should be designed to: Inhibit tyrosinase and melanocyte activity (e.g., via antioxidants or specific agents)