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Increases of glutathione reverse pattern of brain cell activity associated with schizophrenia:
They used the chemical sulforaphane found in broccoli sprouts, which is known to turn on a gene that makes more of the enzyme that sticks glutamate with another molecule to make glutathione. When they treated rat brain cells with glutathione, it slowed the speed at which the nerve cells fired, meaning they were sending fewer messages. The researchers say this pushed the brain cells to behave less like the pattern found in brains with schizophrenia.
However, the impact of sulforaphane may be broader due to the broader effect of increasing glutathione, including in the hippocampus (region impacted by Alzheimer’s disease):
For their study, published in April 2018 in Molecular Neuropsychiatry, the researchers recruited nine healthy volunteers (four women, five men) to take two capsules with 100 micromoles [17.729mg] daily of sulforaphane in the form of broccoli sprout extract for seven days.
The researchers used MRS again to monitor three brain regions for glutathione levels in the healthy volunteers before and after taking sulforaphane. They found that after seven days, there was about a 30% increase in average glutathione levels in the subjects' brains. For example, in the hippocampus, glutathione levels rose an average of 0.27 millimolar from a baseline of 1.1 millimolar after seven days of taking sulforaphane.