Epigenetic Changes in Cancer

Posted on March 14, 2011 by uscma

Distinctive cancer-associated patterns of CpG island hypermethylation are tumor type-specific and contribute decisively to the origin and development of human cancer.

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Mom’s blood carries fetus genome

Posted on December 13, 2010 by uscma

A complete copy of the fetal genome exists in the mother’s blood, suggesting many prenatal diagnoses could be performed noninvasively

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Arsenic supports life?

Posted on December 3, 2010 by uscma

The toxic element might be able to replace phosphorus to support microbial growth, casting doubt on the belief phosphorus is essential to life
A strain of bacteria isolated from a salt lake in California can grow on arsenic, seemingly in lieu of phosphorus in its DNA and other major biomolecules.

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Aging Ills Reversed in Mice

Posted on November 29, 2010 by uscma

Scientists have partially reversed age-related degeneration in mice, an achievement that suggests a new approach for tackling similar disorders in people.

By tweaking a gene, the researchers reversed brain disease and restored the sense of smell and fertility in prematurely aged mice. Previous experiments with calorie restriction and other methods have shown that aspects of aging can be slowed. This appears to be the first time that some age-related problems in animals have actually been reversed.

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Age assay for forensics toolkit

Posted on November 24, 2010 by uscma

A test that tracks declines in T cell byproducts can estimate a person’s age from a blood sample, and may someday help identify victims or perpetrators of crimes

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“Epigenetics” drives phenotype?

Posted on March 22, 2010 by uscma

Researchers have identified a possible mechanism by which DNA regions that don’t encode proteins can still determine phenotypic traits such as a person’s height or susceptibility to a particular disease, researchers report online in Science today. The scientists found that certain chromatin modifications often considered to be epigenetic — meaning, regulated by factors other than [...]

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