This is the blog for GW students taking Human Evolutionary Genetics. This site is for posting interesting tidbits on: the patterns and processes of human genetic variation;human origins and migration; molecular adaptations to environment, lifestyle and disease; ancient and forensic DNA analyses; and genealogical reconstructions.

GWHEG figure

GWHEG figure

Wednesday, September 12, 2018

Scientists Are Retooling Bacteria to Cure Disease

An article published in The New York Times discusses a paper in Nature which recently confirmed the successful manipulation of DNA in bacteria, engineering them to treat a rare inherited disease called phenylketonuria, or PKU. This type of manipulation of DNA has been done for years but only with mice, this was the first successful try with humans. If this new bacteria continues breaking down a metabolism byproduct, an amino acid called phenylalanine, it would signify a huge change for people suffering from PKU. However, they engineered the phenylalanine genes to “shut down” if they sensed high levels of oxygen around them, this may shut the genes permanently for people who also suffer from hyperoxia (excess of oxygen in body tissues).

Alejandra Paredes

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