Increased global DNA methylation and decreased TGF1 promoter methylation in glaucomatous Lamina Cribrosa cells
Hepatology 59 , 21882195 (2014)
In humans, vitamin D can be obtained from dietary sources or synthesized by sunlight-mediated skin synthesis
They play a vital role in regulating key signaling pathways in both prokaryotes and eukaryotes and are involved in various biological processes

Glutathione depletion has been observed among individuals with schizophrenia and may contribute to the pathogenic changes in the brain that occur in neurodegenerative diseases.40 Huang noted that a rare mutation of the MTRR gene, which controls production of the MTR enzyme, was found in an adult patient with schizophrenia who had an elevated plasma homocysteine level.41 Supplementation with B vitamins improved negative symptoms in patients with schizophrenia who were diagnosed with genetic defects affecting folate metabolism.39 A randomized clinical trial in which 42 patients experiencing schizophrenia were treated daily for three months with 2 mg folate, 25 mg vitamin B6, and 400 ug vitamin B12 reported significant reductions in plasma homocysteine levels and improved clinical symptoms compared with control participants.35 Liu and colleagues looked at the effects of vitamin supplementation in a metaanalysis of 16 studies of healthy adults with normal or mildly elevated plasma homocysteine levels (N=1,369)

This creates a robust cellular environment, allowing all other metabolic processes to function more effectively