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Battle of the sexes: one gene keeps us either male or female
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Автор:  Amortel [ 30 янв 2010, 22:49 ]
Заголовок сообщения:  Battle of the sexes: one gene keeps us either male or female

http://www.telegraph.co.uk/science/scie ... -find.html

Battle of the sexes - one gene keeps us either male or female, scientists find

Women and men are constantly battling to suppress their masculine and feminine sides - at least biologically, claim scientists.

By Richard Alleyne, Science Correspondent
Published: 7:30AM GMT 11 Dec 2009

Researchers have found that the body is in a constant fight to remain either female or male and the suppression of just one gene could cause it to "flip" from one to the other.

The remarkable findings refute the generally held view that sex is determined at birth and is irreversible in later life.

They could also lead to treatments for certain gender disorders in children, early menopause in women and even eventually non-surgical sex changes.

In mammals, males have XY chromosomes and females XX. The new research shows that another gene is responsible for switching women into men.

If the FOXL2 is switched on then the body grows ovaries, switched off and they are replaced by testicles.

But what really surprised the researchers is that the process continues after birth and the body remains in a constant tussle to either switch on or off the gene - even in adulthood.

"No one would have betted on this," said Professor Mathias Treier of the University of Cologne in Germany. "That's why the finding is so spectacular,"

The team found that in adult mice by turning off the FoxL2 gene, the ovary cells started to change testicular cells. This suggest the same effect could happen to humans.

"It was thought that you were born either female or male and then your body forgot about it," said Dr Robin Lovell-Badge, the co-author at Britain's Medical Research Council's National Institute of Medical Research.

"But this suggests that the battle of the sexes continues all the way through your life, "

The researchers believe that the process could be similar to that in some fish who are able switch sexes at times when there is a scarcity of either males or females.

Автор:  tantra [ 30 янв 2010, 23:06 ]
Заголовок сообщения: 

Интересное открытие.
Ждем препаратов )

Автор:  Gata Salvaje [ 31 янв 2010, 00:20 ]
Заголовок сообщения: 

Amortelle писал(а):
But what really surprised the researchers is that the process continues after birth and the body remains in a constant tussle to either switch on or off the gene - even in adulthood.


Крута :? Я так и не поняла, способен ли будет организм в половозрелом возрасте при отключении этого самого гена вырастить себе половые органы другого пола или нет :?: .

Автор:  Vassabi [ 31 янв 2010, 00:33 ]
Заголовок сообщения: 

А про что этот фильм?)))

Автор:  Amortel [ 31 янв 2010, 04:12 ]
Заголовок сообщения: 

Elen писал(а):
Крута :? Я так и не поняла, способен ли будет организм в половозрелом возрасте при отключении этого самого гена вырастить себе половые органы другого пола или нет :?: .

В эксперименте на взрослых самках мышей при отключении этого гена клетки яичников превращалась в клетки тестикул.
Так написано в статье.

Автор:  Gata Salvaje [ 31 янв 2010, 10:49 ]
Заголовок сообщения: 

Осталось найти добровольцев :roll: .

Автор:  Amortel [ 31 янв 2010, 12:40 ]
Заголовок сообщения: 

Elen писал(а):
Осталось найти добровольцев :roll: .

Ну думаю что добровольцев найдется немало, особенно среди лесби и фтм.

Автор:  Indigo [ 03 фев 2010, 22:06 ]
Заголовок сообщения: 

Супер. Очень интересно.

Автор:  janeeva [ 25 авг 2010, 15:53 ]
Заголовок сообщения: 

Ген FOXL2 долго пребывал в нерешительности, метался из одной крайности в другую, и, в итоге, принял неверное решение...

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