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There are several genetic and environmental elements associated with mental health issues, and some types of meat may be another factor, according to a new report.
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Researchers at John Hopkins Medicine recently published a study published in Molecular Psychiatry to explore foods that may be related to mania, a mental illness characterized by high blood pressure. 39, hyperactivity, euphoria and insomnia.
To do this, they examined the medical records of more than 1,000 people aged 18 to 65, with or without psychiatric disorders. Those with psychiatric disorders were patients of the Sheppard Pratt Health System in Baltimore, and those who had no history were volunteers.
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They found that people hospitalized for mania were about 3.5 times more likely to have had a history of eating dried meat before hospitalization, compared to the group without psychiatric disorder. The meats consumed were injected with nitrates, chemicals used to cure dried beef, salami, hot dogs and other processed meat-based snacks.
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"It is clear that mania is a complex neuropsychiatric state, and that genetic vulnerabilities and environmental factors are likely to be involved in the emergence and severity of bipolar disorder and associated manic episodes," said the co-author Seva Khambadkone in a statement. "Our findings suggest that nitrated salted meat could be an environmental player in mediated mania."
The same researchers also experimented with rats, feeding them normal food and a piece of dried beef prepared with nitrate. They found that animals that ate dried beef had manic hyperactivity after a few weeks, while rodents that ate nitrate-free foods behaved normally.
Despite the results, the team noted that it was too early for conclusions. They also stated that occasional consumption of salted meat is not likely to cause a manic episode in most of the population.
However, they are eager to continue their investigations.
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According to co-author of the study, Robert Yolken, "Future work on this association could lead to dietary interventions to help reduce the risk of manic episodes in people with bipolar disorder or vulnerable to mania." [19659015]
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