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Showing posts with the label DNA

Later reproduction may extend offspring's life: study

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The finding is completely against the current belief - it therefore needs further study and more evidence. But if succeeding tests will yield the same results, there goes another myth... and this is a really, really good one indeed! Read on... ----- Posted: 12 June 2012 WASHINGTON : The offspring of fathers and grandfathers who reproduced later in life could enjoy life-extending genetic benefits, including being able to father children at an older age, a new study suggests. Researchers at Northwestern University believe the process represents an unusually rapid evolutionary adaptation in which telomeres -- DNA found at the ends of chromosomes -- lengthen, which is thought to promote healthy aging. "If your father and grandfather were able to live and reproduce at a later age, this might predict that you yourself live in an environment that is somewhat similar -- an environment with less accidental deaths or in which men are only able to find a partner at later ages,...

Pregnant mothers' diet linked to child obesity: study

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So much depends on the mother... ----- Posted: 19 April 2011 WELLINGTON : An expectant mother's diet during pregnancy can alter her baby's DNA in the womb, increasing its risk of obesity , heart disease and diabetes in later life, an international study has found. Researchers said the study provided the first scientific evidence linking pregnant women 's diet to childhood obesity, with major implications for public health. "This a a major breakthrough because for the first time it gives us the potential to work out the optimal diet a mother should eat," Professor Peter Gluckman from Auckland University 's Liggins Institute told AFP . "That's likely to vary slightly from mother to mother, but it could be a major tool in addressing the obesity epidemic." The study, conducted by scientists in Britain, New Zealand and Singapore, showed that what a mother ate during pregnancy could change the function of her child's DNA through a...

DNA test could reveal incest

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Okay, so it is said. The DNA test could accidentally reveal incest , but I would disagree in all points that the incest is accidental, eh? Who says that our science today is no longer discovering new things? And while this discovery on DNA test 'revelation' thing is new, the thing about incest is not. Read on, and find out more. ----- Posted: 11 February 2011 PARIS: DNA tests designed to pinpoint development disorders in children can also inadvertently reveal whether a child was conceived through incest, a letter published by The Lancet on Friday warned. Doctors led by Arthur Beaudet at Baylor College of Medicine in Houston, Texas , said the discovery opens thorny ethical and legal problems for clinicians. The test, known as DNA microarray analysis , looks for patterns of single changes in the genetic code that can point to known disorders. But the patterns can also reveal details about the donor's parentage without the parents having to undergo a test...