glutathione building blocks Supplement: Do Blood Levels Rise? Multiple functions exerted by glutathione.

J Biol Chem 271:2431324316 Lee M, Schwab C, Yu S, McGeer E, McGeer PL (2009) Astrocytes produce the antiinflammatory and neuroprotective agent, hydrogen sulfide

Richness of human gut microbiome correlates with metabolic markers (in Eng)

[35] Metabolism [edit] The two bioactive forms of vitamin B 12 are methylcobalamin in cytosol and adenosylcobalamin in mitochondria

However, in chronic critical illness, glutathione synthesis may be impaired by cysteine depletion, protein-energy malnutrition, hyperglycemia, pharmacological doses of glucocorticoids, and decreased anterior pituitary hormone secretion

2013;3:e309

Some studies use an insufficiency threshold, in addition to a deficiency threshold