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dimarts, 24 de maig de 2016

Cuando los hombres pierden su cromosoma Y multiplican por cien el riesgo de tener Alzheimer


TELEGRAPH.- A simple blood test to identify if men have lost crucial genetic material in later life could finally close the gap in life expectancy between men and women, scientists believe.

New research shows that when men lose their Y sex chromosome they are hundreds of times more likely to develop Alzheimer’s disease.

Previous research has shown that smoking hugely increases the risk of losing the Y chromosome, suggesting that the missing genetic material may also be linked to cancer.

It is thought that Y chromosome is crucial for the normal function of the immune system and without it the body struggles to eliminate cancerous cells, and amyloid plaques in the brain which cause Alzheimer’s disease.

Now scientists at Uppsala University in Sweden have found it is possible to test for loss of the chromosome in a breakthrough which could lead to widespread screening which could pick up which men are at risk so that early health interventions could be made.
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