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KMID : 0605720190250010005
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Journal of the Korean Society of Biological Therapies in Psychiatry
2019 Volume.25 No. 1 p.5 ~ p.12
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Gender Differences in the Clinical Manifestation of Depression and Related Neurotransmitters
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Yoon Seo-Young
Chang Sung-Man
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Abstract
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Depression is almost twice as prevalent in women than men. Atypical symptoms, somatic complaints, and comorbid anxiety disorders are more common in women, whereas suicide and comorbid substance use disorders are more common in men. Previous studies have also reported gender differences in the efficacy of and tolerability to specific classes of antidepressants. Various psychosocial and biological factors have been proposed to explain the gender differences in clinical characteristics of depression. The predominant theory of depression pathogenesis is the monoamine hypothesis, and consequently, monoamine neurotransmitters have been the primary target of antidepressants. In the first section of this review, study findings of clinical differences in depression by gender are summarized. Then, we provide an overview of the findings from human and rodent studies of gender differences in serotonin, norepinephrine, dopamine, and glutamate neurotransmitter systems. Total level, rate of synthesis, and receptor profiles of neurotransmitters seem to differ by gender in the euthymic state, depressed state, and in responses to stress or antidepressants. Furthermore, these neurotransmitters interact with gonadal hormones and the hypothalamic-pituitaryadrenal axis, systems that innately exhibit gender differences. Although most of the studies conducted so far are limited to animal models and results of the studies are heterogeneous, growing evidence suggests that gender differences exist in neurotransmitter systems, which possibly leads to gender differences in depression. More intensive studies in this field are needed to build gender-specific treatment strategies.
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KEYWORD
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Depression, Gender, Serotonin, Norepinephrine, Dopamine, Glutamate
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