It is often a general belief that a woman’s biological clock commences to reduce as she ages. Consequence this affects her?chances?to become pregnant and likewise poses being a threat of your high-risk pregnancy. But recent reports show that this old?hypothesis, which claims that as the woman ages, the eggs she’ll produce will have more faulty chromosomes – ultimately causing miscarriages and developmental abnormalities – won’t hold much water, says a whole new research.?The production-line hypothesis stated the first eggs produced in a female’s foetal stage usually have better connections or “crossovers” between chromosomes. Also read how to delay pregnancy by picking egg freezing technology.?
But after counting the actual chromosome crossovers in thousands of eggs, researchers at Washington State University discovered that eggs produced later weren’t any different from those produced at the beginning of the foetal stage.?‘In the event the production-line hypothesis was true, you would expect plenty of abnormal cells and you just would expect all to remain happening late,’ said Ross Rowsey, one of several researchers.
‘We do go to a pretty high incidence of abnormal cells, however are equally as apt to be happening early as late,’ he added.?Rowsey studied above 8,000 eggs from 191 second-trimester fetal ovaries. He saw a great deal of variation within girls and between women, but no relationship into a woman’s age. Also read what the heck is an heavy risk pregnancy.?
‘There’ve being other elements involved,’ he explained. ‘The abnormal crossovers can not be explaining everthing,’ Rowsey added.?The production-line hypothesis was do in 1968 by Alan Henderson and Edwards, winner in the Nobel Prize for advancement of in-vitro fertilisation.
