Why women live longer?

According to a survey of women to live longer than men because the immune system to be more powerful. Decreased with age the body's defenses, reduces the life of men is lower than the resistance against diseases.

Japanese scientists , research on the subject published in the journal Immunity and Ageing 's .

Accordingly, the level of immunity Assays of biological age-related hint give.

The immune system protects the body against infection and cancer , but it is not working properly at times to cause disease.

Study conducted in Japan , age-related changes in the immune system , the average life expectancy for men and women açıklayamayacağına explain the difference between the views.

Professor, Faculty of Medicine and Dentistry of the University of Tokyo and colleagues Katsuiku Hirokawa , ages ranging from 20 to 90 examined blood samples from 356 healthy men and women .

The role of the body's defense molecules called cytokines that were measured akyuvarlarla .

In both sexes, as expected, was observed to decrease with age, white blood cells .

However, on closer inspection, the two fundamental elements of the immune system T and B cells were significantly higher than the rate of aging between men and women .

T cells by infection protecting body . B cells secrete the antibody . Inside the cell, these two types of males than females reported declines more quickly . In addition, two more were reduced with age in men cytokine molecule .

CD4 T cells that protect the immune system killer cells that destroy viruses with an increase in the rate of women is on the rise and faster with age .

Researchers believe that the immune criteria gösterebileceğina real biological age .

Prof . Hirokawa and colleagues , the parameters of the immune system decline more slowly than men , women have a longer life span recorded disclose .

Professor of the University of Newcastle upon Tyne . Tom Kirkwood, the findings are important, but not surprising , he says.

Bu Haber için yorum yapabilirsiniz 25.10.2013 08:31:50 204.236.235.245

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