glutathione and depression can cause Quantification of Glutathione Its Associated Spontaneous Neuronal Activity in Major Depressive Potential Role of Glutathione Antioxidant

This [study] was done in humans

Hyperbaric oxygen therapy Hyperbaric oxygen therapy, reported to have neuroprotective effects in multiple neurological disorders, is now being evaluated as a novel Adjuvant therapy to clinical management of neonatal HIBD ( via cerebral vasoconstriction, decreasing cerebral blood flow and reducing cerebral hematoma, and simultaneously increasing oxygen supply to ischemic tissues ( via neuroprotective effects

Increase of total homocysteine concentration in cerebrospinal fluid in patients with Alzheimers disease and Parkinsons disease

It can also be used to treat growth hormone deficiency in children