People with two copies of the abiogenetic alternative – about 16 per cent of all Europeans – were on boilerplate 3kg (6.6lbs) added than those afterwards it.
In this most recent study, scientists bred mice with added copies of the FTO gene. They begin that the analysis mice, although healthy, ate added and became fatter than accustomed mice.
Prof Frances Ashcroft, one of the leaders of the research, said: "This assignment makes us assured that FTO is an important gene that contributes to obesity.
"We can now anticipate about developing drugs that about-face bottomward the action of the FTO gene as abeyant anti-obesity pills. That's a continued way off and there's no authoritativeness of success, but it's an adorable prospect."
The study, adjourned by the Medical Analysis Council and the Wellcome Trust, was appear in the account Nature Genetics.The advisers begin that afterwards 20 weeks, changeable mice with two copies of the FTO gene were 22 per cent added than accustomed changeable mice, while macho mice were 10 per cent heavier.
The advisers said weight differences in bodies with and afterwards the added copies of the gene would be absurd to be as large.student from the Medical Analysis Council who formed on the study, said the after-effects were "convincing proof" that the FTO gene acquired obesity.
Prof Roger Cox, of the MRC, added: "This gene is atypical to blubber analysis and it is activity to be agitative to acquisition out how it works."
Almost one in three bodies in the UK is ample or obese, which can advance to diseases including Type 2 diabetes, affection ache and cancer. The estimated amount of blubber to the NHS is about £1 billion a year, with an added £2.3-£2.6 billion a year to the abridgement as a whole.