glutathione sigma aldrich GSH/GSSG Assay Kit It has been used to prepare a standard curve for GSH analyses L-Glutathione reduced, 70-18-8, G4251, Sigma-Aldrich

Besides, Glutathione also helps protect the skin from the harmful effects of free radicals and UV rays from the sun, two main factors that cause premature aging and skin darkening

Salivary DNAm levels were determined using the Infinium MethylationEPIC v1.0 BeadChip kit (Illumina, Inc) at the Genomic Sequencing and Analysis Facility (GSAF) at the University of Texas at Austin

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To ensure that our findings are attributed to varying degrees of AD pathology and not external variables, we conducted correlation analyses between positive pixel density scoring and age, gender, post-mortem delay, and fixation time