Biological Psychiatry
Immune dysfunction possibly linked to schizophrenia
Schizophrenia is a complex illness; among other characteristics, sufferers often find it difficult to tell the difference between what is real and not real and have trouble thinking clearly. Its symptoms ...
Psychology & Psychiatry
Oct 19, 2012 |
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Replicating risk genes in bipolar disorder
One of the biggest challenges in psychiatric genetics has been to replicate findings across large studies.
Psychology & Psychiatry
Oct 15, 2012 |
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A gene implicated in schizophrenia risk is also associated with risk for cannabis dependence
A paper by Shizhong Han and colleagues in the current issue of Biological Psychiatry implicates a new gene in the risk for cannabis dependence. This gene, NRG1, codes for the ErbB4 receptor, a protein implicated in synapt ...
Genetics
Oct 11, 2012 |
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Does immune dysfunction contribute to schizophrenia?
A new study reinforces the finding that a region of the genome involved in immune system function, called the major histocompatibility complex (MHC), is involved in the genetic susceptibility to schizophrenia.
Genetics
Oct 10, 2012 |
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Study reveals multiple mechanisms may play role in Alzheimer's
(Medical Xpress)—Researchers investigating a known gene risk factor for Alzheimer's disease discovered it is associated with lower levels of beta amyloid—a brain protein involved in Alzheimer's—in cognitively healthy ...
Neuroscience
Oct 02, 2012 |
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Low ghrelin—reducing appetite at the cost of increased stress?
Ghrelin is a hormone released by the lining of the stomach that promotes feeding behavior. Decreasing ghrelin levels could potentially help combat obesity—in fact, a vaccine that lowers ghrelin levels in order to reduce ...
Psychology & Psychiatry
Sep 13, 2012 |
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Stress hormones: Good or bad for posttraumatic stress disorder risk?
Glucocorticoids, a group of hormones that includes cortisol, are considered stress hormones because their levels increase following stress. When their relationship to stress was first identified, it was shown that the release ...
Psychology & Psychiatry
Sep 12, 2012 |
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Male mice exposed to chronic social stress have anxious female offspring
A study in mice conducted by researchers at Tufts University School of Medicine (TUSM) suggests that a woman's risk of anxiety and dysfunctional social behavior may depend on the experiences of her parents, particularly fathers, ...
Psychology & Psychiatry
Aug 22, 2012 |
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Making sense out of the biological matrix of bipolar disorder
The more that we understand the brain, the more complex it becomes. The same can be said about the genetics and neurobiology of psychiatric disorders. For "Mendelian" disorders, like Huntington disease, mutation of a single ...
Psychology & Psychiatry
Aug 20, 2012 |
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More delays in brain growth seen with ADHD
(HealthDay) -- Researchers have uncovered more evidence that certain types of delays in brain development seem to be related to a heightened risk for attention-deficit hyperactivity disorder (ADHD).
Psychology & Psychiatry
Aug 15, 2012 |
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Tripping the switches on brain growth to treat depression
Depression takes a substantial toll on brain health. Brain imaging and post-mortem studies provide evidence that the wealth of connections in the brain are reduced in individuals with depression, with the result of impaired ...
Psychology & Psychiatry
Aug 15, 2012 |
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Speech a new marker for depression treatment response
(Medical Xpress) -- Speech can measure the severity of depression as well as a patient’s response to treatment, a new collaborative study between the University of Melbourne and the Center for Psychological Consultation ...
Psychology & Psychiatry
Aug 13, 2012 |
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Estrogen and female anxiety: Study suggests lower levels can lead to more mood disorders
Some women’s vulnerability to anxiety and mood disorders may be explained by their estrogen levels, according to new research by Harvard and Emory University neuroscientists presented in this month’s ...
Psychology & Psychiatry
Aug 10, 2012 |
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Mental disorders impair economic success in developed countries
Mental disorders that emerge in childhood and adolescence, including attention-deficit disorder, depression, anxiety and substance abuse, constitute significant challenges to cognitive, emotional, and social development. ...
Psychology & Psychiatry
Jul 31, 2012 |
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Brain development is delayed in attention-deficit/hyperactivity disorder
Is attention-deficit/hyperactivity disorder (ADHD) due to a delay in brain development or the result of complete deviation from typical development? In the current issue of Biological Psychiatry, Dr. Philip Shaw and collea ...
Psychology & Psychiatry
Jul 30, 2012 |
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