In a series of recently published studies using animals and people, researchers say they have further characterized a set of chemical imbalances in the brains of people with schizophrenia-related to the chemical glutamate. And they figured out how to tweak the level using a compound derived from broccoli sprouts.
They say the results advance the hope that supplementing with broccoli sprout extract, which contains high levels of the chemical sulforaphane, may someday provide a way to lower the doses of traditional antipsychotic medicines needed to manage schizophrenia symptoms, thus reducing unwanted side effects of the medicines.
"It's possible that future studies could show sulforaphane to be a safe supplement to give people at risk of developing schizophrenia as a way to prevent, delay or blunt the onset of symptoms," adds Akira Sawa, M.D., Ph.D., professor of psychiatry and behavioral sciences at the Johns Hopkins University School of Medicine and director of the Johns Hopkins Schizophrenia Center.
Schizophrenia is marked by hallucinations, delusions, and disordered thinking, feeling, behavior, perception, and speaking. Drugs used to treat schizophrenia don't work completely for everyone, and they can cause a variety of undesirable side effects, including metabolic problems increasing cardiovascular risk, involuntary movements, restlessness, stiffness and "the shakes."
In a study described in the Jan. 9 edition of the journal JAMA Psychiatry, the researchers looked for differences in brain metabolism between people with schizophrenia and healthy controls. They recruited 81 people from the Johns Hopkins Schizophrenia Center within 24 months of their first psychosis episode, which can be a characteristic symptom of schizophrenia, as well as 91 healthy controls from the community. The participants were an average of 22 years old, and 58% were men.
According to the World Health Organization, schizophrenia affects about 21 million people worldwide.
Sulforaphane is found in a variety of cruciferous vegetables and was first identified as a "chemoprotective" substance decades ago by Paul Talalay and Jed Fahey at Johns Hopkins.
The scientists say further research is needed to learn whether sulforaphane can safely reduce symptoms of psychosis or hallucinations in people with schizophrenia. They would need to determine an optimal dose and see how long people must take it to observe an effect. The researchers caution that their studies don't justify or demonstrate the value of using commercially available sulforaphane supplements to treat or prevent schizophrenia, and patients should consult their physicians before trying any kind of over-the-counter supplement. Versions of sulforaphane supplements are sold in health food stores and at vitamin counters, and aren't regulated by the U.S. Food and Drug Administration.IBM's AI can predict schizophrenia by looking at the brain's blood flow. And it does so with 74 percent accuracy
Function biomedical informatics research network recommendations for prospective multicenter functional MRI studies
Broccoli sprout compound may restore brain chemistry imbalance linked to schizophrenia -- ScienceDaily:
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