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September 24, 2012--------News Archive Return to: News Alerts


Everyone will agree that men and women are different but, beyond the obvious,
genetics also reflects more subtle differences in each sex's proclivity towards disease.


WHO Child Growth Charts

       

Men and Women's Genetic Predisposition to Disease is Different

A team of researchers show that men and women do not have the same propensity to develop certain diseases

We are not all the same when it comes to illness.

In fact, the risk of developing a disease such as diabetes or heart disease varies from one individual to another. A study led by Emmanouil Dermitzakis, Louis-Jeantet Professor at the Faculty of Medicine of the University of Geneva (UNIGE) reveals that the genetic predisposition to develop certain diseases may differ from one individual to another depending on their sex.


Together with his collaborators,
the professor has shown that genetic
variants have a different impact on the level
of gene expression between men and women.

Of all the genetic variants that have an impact
on the level of gene expression, about 15%
work differently depending on whether
they are acting upon a man or a woman.


The results of this research have been published in the scientific journal Genome Research.

For decades geneticists have been interested in genetic variants that affect the level of gene expression. These variants spark the interest of researchers because they play a role in the predisposition to certain diseases.

Professor Dermitzakis' team from UNIGE, in collaboration with Oxford University, focused on the fundamental differences in the genetics of gene expression between men and women.


After analyzing the impact of genetic variants
in gene expression in women, and then in men,
scientists found the genetic risk of developing disease
resulting from these genetic variants is different
depending on the sex of the individual.


Everyone will agree that men and women are different but, beyond the obvious, genetics brings to light more subtle differences.

The researchers found that even with the same DNA mutation in men and in women, the impact on the level of gene expression will be different.

Of all the genetic variants that have an impact on the level of gene expression, about 15% work differently depending on whether they are acting upon a man or a woman.


"We already knew that certain environmental factors,
like diet, had a variable impact depending
on the sex of an individual.

Today, we are able to confirm that genetic
variants have a different impact on the level of gene
expression in men and women.
That is to say
that although two individuals
of opposite sex
both have a same variant predisposing them
to a disease, they will not have
the same propensity to develop it."

Emmanouil Dermitzakis


Original article: http://www.eurekalert.org/pub_releases/2012-09/udg-maw092012.php