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A literature review judged that over 50% of the candidate genes for susceptibility to schizophrenia met criteria for "ischemia–hypoxia regulation or vascular expression" even though only 3.5% of all genes were estimated to be involved in hypoxia/ischemia or the vasculature. [clarification needed] [63]
The causes of schizophrenia that underlie the development of schizophrenia, a psychiatric disorder, are complex and not clearly understood.A number of hypotheses including the dopamine hypothesis, and the glutamate hypothesis have been put forward in an attempt to explain the link between altered brain function and the symptoms and development of schizophrenia.
The causes of schizophrenia may include genetic and environmental factors. [7] Genetic factors include a variety of common and rare genetic variants . [ 21 ] Possible environmental factors include being raised in a city , childhood adversity, cannabis use during adolescence, infections, the age of a person's mother or father , and poor ...
'This will turn out to be the most important break in the disease,' the Broad Institute's director Eric Lander said.
The basic principle behind psychiatric genetics is that genetic polymorphisms (as indicated by linkage to e.g. a single nucleotide polymorphism) are part of the causation of psychiatric disorders. [1] Psychiatric genetics is a somewhat new name for the old question, "Are behavioral and psychological conditions and deviations inherited?".
This additional post-menopausal peak of late-onset schizophrenia in women calls into question the etiology of the disease and raises a debate about "subtypes" of schizophrenia, with men and women being susceptible to different types (see causes of schizophrenia). This is further supported by the variability in presentation of the disease ...
Schizophrenia is a debilitating and often misunderstood disorder that affects up to 1% of the world's population. [1] Although schizophrenia is a heavily studied disorder, it has remained largely impervious to scientific understanding; epigenetics offers a new avenue for research, understanding, and treatment.
Pleiotropy in genes has been linked between certain psychiatric disorders as well. Deletion in the 22q11.2 region of chromosome 22 has been associated with schizophrenia and autism. [22] Schizophrenia and autism are linked to the same gene deletion but manifest very differently from each other.
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