Yerevan, 20.July.2018,
--
:
--
,

Smoking 'causes hundreds of DNA changes'

Smoking leaves an "archaeological record" of the hundreds of DNA mutations it causes, scientists have discovered.

Having sequenced thousands of tumour genomes, they found a 20-a-day smoker would rack up an average of 150 mutations in every lung cell each year.

The changes are permanent, and persist even if someone gives up smoking.

Researchers say analysing tumour DNA may help explain the underlying causes of other cancers.

Pamela Pugh, 69, was diagnosed with lung cancer in 2013. She started smoking aged 17 and quit in her early 50s.

But she said: "Even though I gave up many years ago, the effects of smoking caught up with me.

"Had I known as a teenager that smoking caused mutations which would stay with me for life then I would never had started".

loading...
Four men took own lives after webcam blackmail Katy Perry gets charity award for her work with children from Hillary Clinton Philip Morris could stop making conventional cigarettes Trump eyes ex-Goldman banker Steve Mnuchin for Treasury CIA chief warns Trump: Scrapping Iran deal 'height of folly' Thousands 'miss out on stroke treatment' Samsung Electronics considers splitting firm in two South Korea's President Park 'willing to resign' Brazil Chapecoense football team in Colombia plane crash Bird flu: Netherlands culls 190,000 ducks Trump dismisses Wisconsin recount drive as 'scam' Fidel Castro death: Cubans mourn ex-leader Women in science pledge to combat hate Black Friday and Cyber Monday: Five tips for spotting a bargain Lung cancer cells spread like unanchored tents, study says Abducted California woman Sherri Papini found after three weeks Brazil president Michel Temer accused of corruption Predatory bacteria can wipe out superbugs, says study Catherine Zeta-Jones takes aim at paparazzi with 'better' bikini photos Colombia signs new peace deal with Farc Israel fires: Tens of thousands flee as fires hit Haifa Shia pilgrims among more than 80 killed in IS attack in Iraq Climate changing 'too fast' for species
Today For week For Month
website by Sargssyan