Experts call for better research into link between women's hormones and mood disordersDecember 13, 2007Gender-specific research is needed to understand women's increased vulnerability to poor mental health, study argues Countless movies and TV shows make light of women's so-called "moodiness", often jokingly attributing it to their menstrual cycle or, conversely, to menopause. In fact, mood disorders are a serious and pervasive health problem, and large-scale population studies have found women are 1.5 to 3 times more likely to suffer from major depressive disorder than are men. In a newly published study, women's health experts from the University of Alberta argue there is an urgent need for carefully designed, gender-specific research to better understand the relationship of female sex hormones to mood states and disorders. "The reasons for the gender disparity in rates of depression are not completely understood," says Kathy Hegadoren, the Canada Research Chair in Stress Disorders in Women at the University of Alberta. "But there is growing evidence that estrogens have powerful effects beyond their role in reproduction-that they play a critical role in mood disorders in women-and this opens new avenues for research into the underlying biological mechanisms and treatment of depression." Estrogen can be used to treat various mood disturbances in women-such as perimenopausal, postmenopausal and postpartum depression-but the results of these treatments can be difficult to interpret because researchers are only beginning to recognize the complex interactions among estrogens, serotonin and mood. "Right now, clinical use of sex-hormone therapies for the treatment of mood disorders is severely hampered by the inability to predict which women would respond well to such therapies," explains study co-author and U of A nursing professor Gerri Lasiuk. "Most animal studies looking at the causes of depression have been conducted with male animals and use chronic-stress models, which are assumed to be similar to depression." Hegadoren and Lasiuk's study recognizes that multiple factors may be at play in the development of mood disturbances, with individual, psychosocial and environmental factors interacting in complicated ways to create differential vulnerability in women and men. But they also point out that the link to sex hormones is hard to deny. "Previous research has found that, before puberty, the rates of mood and anxiety disorders are similar in boys and girls. It's only after females begin menstrual function that a gender differential in mood disorders manifests itself. This, coupled with the observation that women appear to be especially vulnerable to mood disturbances during times of hormonal flux, certainly lends support to the claim that a relationship exists between sex hormones and mood," says Hegadoren. University of Alberta |
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| Related Mood Disorder Current Events and Mood Disorder News Articles Pre-pregnancy depressed mood may heighten risk for premature birth Researchers trying to uncover why premature birth is a growing problem in the United States and one that disproportionately affects black women have found that pre-pregnancy depressive mood appears to be a risk factor in preterm birth among both blacks and whites. Lithium may help radiation target cancer, spare healthy tissue Vanderbilt-Ingram Cancer Center investigators have uncovered a mechanism that helps explain how lithium, a drug widely used to treat bipolar mood disorder, also protects the brain from damage that occurs during radiation treatments. New light on bipolar treatment drugs Lithium has been established for more than 50 years as one of the most effective treatments for bipolar mood disorder. Novel imaging technique reveals brain abnormalities that may play key role in ADHD A study published today in the online advance edition of The American Journal of Psychiatry for the first time reveals shape differences in the brains of children with ADHD, which could help pinpoint the specific neural circuits involved in the disorder. Getting help for depression and anxiety has significant long-term benefits According to the Mood Disorder Society of Canada, about 1.3 million Canadians suffer from depression. Study offers new insights into teenagers and anxiety disorders Can scientists predict who will develop anxiety disorders years in advance? UCLA psychology professor Michelle Craske thinks so. She is four years into an eight-year study evaluating 650 students, who were 16 when the study began, to identify risk factors for the development of anxiety and depression - the most comprehensive study of its kind. Children of older fathers more likely to have bipolar disorder Older age among fathers may be associated with an increased risk for bipolar disorder in their offspring, according to a report in the September issue of Archives of General Psychiatry, one of the JAMA/Archives journals. The ECNP consensus statement on bipolar depression Bipolar disorder is one of the most complex and challenging mental disorder in the spectrum. Bipolar disorder is typically associated with considerable acute and longterm treatment needs and may be associated in the course of illness with times of tremendous social burden for both the individual and family. Pregnancy alone is not associated with increased risk for mental disorders Pregnancy alone does not appear to be associated with an increased risk of the most prevalent mental disorders, according to a report in the July issue of Archives of General Psychiatry, one of the JAMA/Archives journals. However, post-partum women may have a higher risk of major depressive disorder. Research team finds link between asthma and depressive disorders Young people with asthma are about twice as likely to suffer from depressive and anxiety disorders than are children without asthma, according to a study by a research team in Seattle. More Mood Disorder Current Events and Mood Disorder News Articles |
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