2010-09-14

原來近視是遺傳決定的!?

Genetic code linked to short sight found | Science | The Guardian

Two separate studies, published in Nature Genetics journal, found variations in DNA that were more common in people with short sight. Chris Hammond, at King's College, London, found one section of DNA on chromosome 15 was more common in people with myopia. Caroline Klaver, at Erasmus Medical Centre in Rotterdam, found another strand, also on chromosome 15, linked to short sight.

The variations in DNA amount to misspellings in the genetic code. These alter the activity of three genes that control the growth of the eyeball and ensure light entering the eye is converted into electrical pulses in the retina.


因為遺傳因子影響眼球的發育, 所以比較容易近視, 而這個影響佔了將近八成...

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