Discover possible cause of autism

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For Recinos Kriscia

The decrease in a hormone produced by the placenta and which is crucial for brain development appears linked to the risk of autistic behaviors in children, as according to a study presented at the annual conference Neuroscience 2019.

 Researchers at the National Children's Hospital in Chicago pointed to the role of the neurosteroid hormone alloprenanolone, generally abbreviated as ALLO, whose supply decreases or stops abruptly in premature births.

 “Our study found that local loss of ALLO in the uterus leads to long-term structural alterations in the cerebellum., a region of the brain that is essential for motor coordination, balance and social cognition, and that increases the risk of developing autism ", Expresó Claire Marie Vacher, research author.

The United States Centers for Disease Control and Prevention, claim that at least one in ten premature babies and one in every 19 born children have autism spectrum disorders.

Autism is a developmental disorder characterized by difficulties in social relationships and communication, and for restricted and repetitive behaviors.

The signs of autism develop gradually and are noticed by parents within the first three years of life of minors.

Health authorities estimate that there are more than 25 millions of people affected by various manifestations of autism.

The disorder occurs four to five times more often in boys than in girls, and the number of people diagnosed has increased since the 1990s. 1960.

Scientific studies have not been able to determine whether the increase is the product of better diagnostic procedures or a real increase in the incidence of cases.