cellular glutathione Apoptosis and glutathione: beyond an antioxidant and protecting cells from daily oxidative burden Glutathione

For cells, they were first washed with PBS and fixed at room temperature for 15 min, followed by incubation with the staining solution at pH 6.0 overnight at 37 C

A proton nuclear magnetic resonance study of the binding of methylmercury in human erythrocytes

The study utilizing single-voxel proton magnetic resonance spectroscopy (1H MRS) to analyze glutamate levels relative to creatine in individuals with Primary Insomnia (PI) suggests no significant direct association between glutamate concentrations in the dorsal anterior cingulate cortex (dACC) and measures of sleep quality within subjects with Major Depressive Disorder (MDD)

doi: 10.1016/j.chemosphere.2007.04.040 43 MichalakA

Treat it as historical in vitro data rather than in-human evidence, the original study used cultured cells, not human subjects [16][17]