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In this model most families fall into two types: in the majority, sons have a low risk of autism, but in a small minority their risk is near 50%. In the low-risk families, sporadic autism is mainly caused by spontaneous mutation with poor penetrance in daughters and high penetrance in sons. The high-risk families come from (mostly female ...
Diabetes in the mother during pregnancy is a significant risk factor for autism; a 2009 meta-analysis found that gestational diabetes was associated with a twofold increased risk. A 2014 review also found that maternal diabetes was significantly associated with an increased risk of autism. [ 55 ]
Several prenatal and perinatal complications have been reported as possible risk factors for autism. These risk factors include maternal gestational diabetes, maternal and paternal age over 30, [198] [199] [200] bleeding during pregnancy after the first trimester, use of certain prescription medication (e.g. valproate) during pregnancy, and ...
Gastrointestinal symptoms are a common comorbidity in patients with autism spectrum disorders (ASD), even though the underlying mechanisms are largely unknown. The most common gastrointestinal symptoms reported by proprietary tool developed and administered by Mayer, Padua, and Tillisch (2014) are abdominal pain, constipation, diarrhea and ...
Holly Madison recently learned that she is on the autism spectrum. “I’ve been suspicious of it for a while because my mom told me that she was always suspicious that that was a thing ...
The term "high-functioning autism" was used in a manner similar to Asperger syndrome, another outdated classification. The defining characteristic recognized by psychologists was a significant delay in the development of early speech and language skills, before the age of three years. [ 12 ]
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 and other neurodevelopmental disorders could be triggered by air pollution, a new study suggests. Researchers and other experts speak about the potential risk.