日期：2016-12-13 15:18:51 来源：www.jnzyxlzx.com
Affective disorder is a mental illness, there are a lot more common is the genetic cause of affective disorder, infection, trauma and so on, we only emotional factors have a good understanding, to better treatment, we look at the details of the experts.
(a) genetic and environmental factors
It has long been recognized that genes are one of the main factors that affect the normal and abnormal behavior of human beings and animals. The so-called "mental disorders" (such as schizophrenia, affective disorders, autism, anorexia nervosa, ADHD, panic disorder etc.) were studies of familial aggregation, including genetics and genetic disorders to understand the degree of gene scanning, the common conclusion is: these diseases hereditary disease susceptibility gene, is to be handed down from generation to generation.
We know that, like Huntington's ten single gene genetic disease gene mutation causes the disease but the mental disorder be handed down from age to age; most of the single gene cannot be used to explain the interaction, but more than one base, increase the risk, coupled with environmental factors in the disease. From this meaning, the interaction of genes increases the risk of disease, but the role of each individual gene is limited, it is difficult to find the exact cause of the disease gene. However, it seems that it is easier to find the relationship between the disease and the most closely related. Therefore, the change of environmental factors leading to the disease will be the focus of the current prevention of mental disorders.
As early as the early twentieth Century, we knew that infection can affect the central nervous system and mental disorders. For example, through sexual transmission of syphilis in the first cause genital genital symptoms, in the years of latent into the brain, leading to invite appropriate industry straight neurosyphilis C. Neurosyphilis mainly for the nervous system of the right of return, manifestations of dementia, psychiatric symptoms and paralysis. Human immunodeficiency virus (HIV) can enter the brain, produce cognitive and behavioral damage, early signs of memory impairment, inattention and removal of indifference, with the passage of time, there is more widespread damage, such as autism, incontinence, etc. Approximately HIV of 15%-44% infected persons with dementia appear to show. HIV is not directly infected with the neurons, but infected with immune cells - macrophage macrophage cell death, the release of toxins, damage to the surrounding neurons. Mental disorders caused by infection such as herpes simplex encephalitis, encephalomyelitis, measles, meningitis, acute and chronic sclerosing panencephalitis industry etc. Recently, it has been found that some children in the sudden appearance of obsessive-compulsive disorder after the show.
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