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Indeed, scientists have found that slathering such DNA fragments onto UV exposed hairless mice thwarts skin cancer.The investigators speculate that the DNA bits mimic chromosome damage in the skin cells that pick them up, and thereby tell the cells to boost their DNA repair activity. “We think we’ve tapped into a very important signaling pathway,” says Barbara Gilchrest of Boston University School of Medicine.When ultraviolet light hits an unprotected skin cell, it can damage the cell’s DNA. That may lead to a long lasting mutation, if the cell doesn’t quickly repair the molecular lesions.Tanning is another way the skin protects its cells from the sun: The pigment melanin helps skin cells more safely absorb ultraviolet radiation.In 1994, Gilchrest and her colleagues reported that applying a specific tiny snippet of DNA to human skin ceils or the skin of guinea pigs induces a tanning response.
I also find big food fascinating as a visual artist. Humankind started agriculture about 11,000 years ago and it’s become the biggest imprint we have on our planet. I realised that it’s an ecological issue too as the demand for food has caused us to take out more and more natural landscapes.What role do you think journalists can play in addressing these challenges within our food systems?The key thing is to have transparency and show people the realities of food production.
Akhil Arora covers entertainment for Gadgets 360, interviewing stars such as Christian Bale and Anurag Kashyap, covering series premieres, product and service launches across the globe, and looking at American blockbusters and Indian dramas from a global socio political and feminist perspective. As a Rotten Tomatoes certified film critic, Akhil has reviewed over 150 movies and TV shows in over half a decade at Gadgets 360. When he is not completely caught up with new film and TV releases, Akhil.
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