La presente investigación, realizada en el Hospital Mount Sinai en Estados Unidos, apunta a las consecuencias genéticas del Holocausto. Los padres que sufrieron las condiciones de los campos de concentración es posible que transmitan a su progenie ciertas patologías. El artículo es de "The Guardian".
"Genetic changes stemming from the trauma suffered by Holocaust
survivors are capable of being passed on to their children, the clearest
sign yet that one person’s life experience can affect subsequent
The conclusion from a research team at New York’s Mount Sinai hospital
led by Rachel Yehuda stems from the genetic study of 32 Jewish men and
women who had either been interned in a Nazi concentration camp,
witnessed or experienced torture or who had had to hide during the
second world war.
They also analysed the genes of their children, who are known to have
increased likelihood of stress disorders, and compared the results with
Jewish families who were living outside of Europe during the war. “The
gene changes in the children could only be attributed to Holocaust
exposure in the parents,” said Yehuda.
Her team’s work is the clearest example in humans of the transmission
of trauma to a child via what is called “epigenetic inheritance” - the
idea that environmental influences such as smoking, diet and stress can
affect the genes of your children and possibly even grandchildren.
The idea is controversial, as scientific convention states that genes
contained in DNA are the only way to transmit biological information
between generations. However, our genes are modified by the environment
all the time, through chemical tags that attach themselves to our DNA,
switching genes on and off. Recent studies suggest that some of these
tags might somehow be passed through generations, meaning our
environment could have and impact on our children’s health.
Other studies have proposed a more tentative connection between one generation’s experience and the next. For example, girls born to Dutch women
who were pregnant during a severe famine at the end of the second world
war had an above-average risk of developing schizophrenia. Likewise, another study has showed that men who smoked before puberty fathered heavier sons than those who smoked after.