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Thyroid problems that lead to thyroxine deficiency in the mother in weeks 8–12 of pregnancy have been postulated to produce changes in the fetal brain leading to autism. Thyroxine deficiencies can be caused by inadequate iodine in the diet, and by environmental agents that interfere with iodine uptake or act against thyroid hormones .
[11] [12] [13] Maternal valproate use during pregnancy increased the probability of autism in the offspring compared to mothers not taking valproate from 1.5% to 4.4%. [14] A 2005 study found rates of autism among children exposed to sodium valproate before birth in the cohort studied were 8.9%. [15]
The risk of developing autism is increased in the presence of various prenatal factors, including advanced paternal age and diabetes in the mother during pregnancy. [8] In rare cases, autism is strongly associated with agents that cause birth defects. [9] It has been shown to be related to genetic disorders [10] and with epilepsy. [11]
Autism spectrum disorder [a] (ASD), or simply autism, is a neurodevelopmental disorder "characterized by persistent deficits in social communication and social interaction across multiple contexts" and "restricted, repetitive patterns of behavior, interests, or activities". [11] Sensory abnormalities are also included in the diagnostic manuals ...
Omega-3 supplements during pregnancy were not associated with autism diagnosis or autism-related traits, the researchers said. Autism is a developmental condition that affects how people learn ...
Developmental disorders are present from early life onward. Most improve as the child grows older, but some entail impairments that continue throughout life. These disorders differ from Pervasive developmental disorders (PPD), which uniquely describe a group of five developmental diagnoses, one of which is autism spectrum disorders (ASD ...
A new Canadian study suggests that women who take antidepressants during pregnancy may be more likely to give birth to children with autism.
Because of this, individual has problems receiving, processing or communicating information normally. Some causes of the nervous system abnormality include problems during pregnancy, birth or early infancy, brain trauma at a young age, exposure to toxins, and prematurity. [4]