glutathione concentration in liver of reduced (GSH) homogenates of brain, Glutathione in Brain: Overview of
Description
Additionally, individuals taking medications that may interact with B12, including metformin or proton pump inhibitors, should consult a healthcare provider before starting supplementation

Clin Infect Dis 24(6):1095-9, 1997

Blood 142, 1139

Vascular factors may be the most critical of all

Death was confirmed by observing the cessation of heartbeat and respiration, after which the animals were monitored for an additional 2 min to ensure complete demise