In the case of alcohol the mechanism is well described: ethanol metabolism involving the CYP2E1 enzyme releases free radicals, and these reduce the level of reduced glutathione in the liver (Lieber, Drug Metabolism Reviews 2004, PMID 15554233)
Smoday I.M., Petrovic I., Kalogjera L., Vranes H., Zizek H., Krezic I., Gojkovic S., Skorak I., Hriberski K., Brizic I., et al
A quick B12 injection is a simple, fast way to top up, and we bring it to you
Effect of platelet rich plasma lysate and fibroblast growth factor 2 on stallion sperm motility
Low-density lipoprotein cholesterol and risk of intracerebral hemorrhage: a prospective study
Research suggests that glutathione may support egg quality by protecting the developing oocytes from oxidative stress within the follicular fluid