Archive for February 2nd, 2010

Posted on February 2, 2010 - by David

Fish Oil the Latest in Psychiatric Treatment?

This article summarizes the results of a study from the University of Melbourne, which suggests that the omega-3 fatty acids found in fish oil may help prevent psychosis in adolescents and young adults who have been identified as “at-risk.”

The study involved 81 individuals ages 13-25 “who met at least one of the following three criteria: having low-level psychotic symptoms; having transient psychotic symptoms; or having a schizophrenia-like personality disorder or a close relative with schizophrenia, along with a sharp decline in mental function within the past year.”

For 12 weeks, half the group was given fish oil capsules and the other half recieved placebo. Participants were then monitored for next 40 weeks. Only 2 of the 41 people given fish oil developed a psychotic disorder compared to 11 of 40 of the placebo group. The omega-3 group also “also showed significant reductions in their psychotic symptoms and improvements in function.” The researchers hope to replicate the findings in a multicenter trial involving 320 people.

Certainly, the lack of adverse side effects compared to the commonly used anti-psychotic medications would make this treatment a much preferred choice for patients. While these findings are definitely positive, it was a very small and relatively short-term study, so further research is obviously needed to determine the value of fish oil as a treatment or preventitive measure for serious mental illness. Also, this once again highlights how little is understood about what is happening in the brain of the schizophrenic patient. The article mentions some of the potential reasons this novel treatment may be effective:

There are a number of mechanisms through which omega-3s could protect the brain, Amminger said; they are a major component of brain cells. They are also key to the proper function of two brain chemical signaling systems, dopamine and serotonin, which have been implicated in schizophrenia. Fish oil also boosts levels of glutathione, an antioxidant that protects the brain against oxidative stress.

In the quest to understand the cause and progression of this illness, nearly every neurotransmitter and every part of the brain has been implicated in some way or another. While hopefully this study will lead to new ways of dealing with the symptoms of schizophrenia without the devastating side-effects of many commonly prescribed drugs, it seems to be another example of a “scientific” answer which amounts to, “this might work, and if it does, these might be some of the reasons why.”