News tagged with dna

Genes protect themselves against being silenced

Harvard Stem Cell Institute (HSCI) researchers have settled a century-old debate over whether occurrence of DNA methylation acts to silence gene expression, or if genes are turned off by other means before ...

Oct 10, 2013
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No viral cause for breast cancer and brain tumors

A major study conducted at the Sahlgrenska Academy has now disproved theories of a viral cause for breast cancer and the brain tumour, glioblastoma. The study, which was based on over seven billion DNA sequences and which ...

Oct 08, 2013
popularity 5 / 5 (2) | comments 0 | with audio podcast

New advances in the study of human mitochondrial DNA

A study concerning the evolution of mitochondrial DNA, performed by researchers from the Universitat Autònoma de Barcelona (UAB), has allowed to determine the frequency and pattern of heteroplasmy in the complete mitochondrial ...

Oct 03, 2013
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Study of 'sister' stem cells uncovers new cancer clue

Scientists have used a brand new technique for examining individual stem cells to uncover dramatic differences in the gene expression levels – which genes are turned 'up' or 'down'– between apparently identical 'sister' ...

Sep 26, 2013
popularity 4.3 / 5 (4) | comments 0 | with audio podcast