Gain little weight in pregnancy increases the risk of schizophrenia

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Gain little weight in pregnancy increases the risk of schizophrenia

Weight control during pregnancy is essential, because both take much weight, as little, is harmful to the baby.

A recent study published in JAMA Psychiatry has found a possible link between inadequate of gestational weight gain and increased the risk that the baby will develop long-term spectrum of schizophrenia-related disorders, a mental disorder severe uncommon, although 21 million people suffering from it around the world, according to the latest data from the World Health Organization (who).

Just over 6% of 2.910 included in the study who suffered from non-affective psychosis descended from mothers with insufficient gestational weight gain

The research, conducted by experts from the Karolinska Institute (Sweden), used data from 526.042 individuals born in this country during the 1980s (48,52% women and 51.47% men), with an average age of 26 years, and took into account the weight of the mother from the first medical visit until the time of delivery. Thus, the researchers noted that, at the end of the track, descended more than 6% of persons included in the sample 2.910 who suffered from non-affective psychosis of women who had won an underweight during pregnancy.

Thus, the researchers reinforced the converging evidence for the role of prenatal nutritional deficiency in the early origins of psychosis, even in the context of a prosperous and well nourished population, and strengthens the argument of a careful examination of the need or not of prenatal nutritional supplements, and dietary models defined as a means of prevention.

Other studies linking maternal malnutrition and child psychosis

This is not the only study that has been developed to try to find a relationship between the increase of the possibility to develop disorders of the schizophrenic spectrum in children and an inadequate weight gain of the mother during pregnancy, but that their results corroborate the evidence offered by previous research.

For example, carried out during the Dutch famine suffered in the winter of 1944, associated with an increase of twice in the risk of non-affective psychosis in the offspring; or the one made after the analysis of the Chinese famine suffered in the great leap forward of the year 59 to 61, which identified up to two times greater chance of schizophrenia due to maternal undernutrition during pregnancy.

Finally, note that, unlike the above-mentioned investigations, carried out in Sweden includes two strengths that are not possible in natural experiments, and design that are: the rigorous control of parental psychiatric conditions, and the comparison of affected and unaffected siblings.

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