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Fasting diet 'regenerates diabetic pancreas' | Fasting diet 'regenerates diabetic pancreas' |
(about 11 hours later) | |
The pancreas can be triggered to regenerate itself through a type of fasting diet, say US researchers. | The pancreas can be triggered to regenerate itself through a type of fasting diet, say US researchers. |
Restoring the function of the organ - which helps control blood sugar levels - reversed symptoms of diabetes in animal experiments. | Restoring the function of the organ - which helps control blood sugar levels - reversed symptoms of diabetes in animal experiments. |
The study, published in the journal Cell, says the diet reboots the body. | The study, published in the journal Cell, says the diet reboots the body. |
Experts said the findings were "potentially very exciting" as they could become a new treatment for the disease. | |
The experiments were on mice put on a modified form of the "fasting-mimicking diet". | |
When people go on it they spend five days on a low calorie, low protein, low carbohydrate but high unsaturated-fat diet. | |
It resembles a vegan diet with nuts and soups, but with around 800 to 1,100 calories a day. | |
Then they have 25 days eating what they want - so overall it mimics periods of feast and famine. | Then they have 25 days eating what they want - so overall it mimics periods of feast and famine. |
Previous research has suggested it can slow the pace of ageing. | |
Diabetes therapy? | Diabetes therapy? |
But animal experiments showed the diet regenerated a special type of cell in the pancreas called a beta cell. | |
These are the cells that detect sugar in the blood and release the hormone insulin if it gets too high. | These are the cells that detect sugar in the blood and release the hormone insulin if it gets too high. |
Dr Valter Longo, from the University of Southern California, said: "Our conclusion is that by pushing the mice into an extreme state and then bringing them back - by starving them and then feeding them again - the cells in the pancreas are triggered to use some kind of developmental reprogramming that rebuilds the part of the organ that's no longer functioning." | Dr Valter Longo, from the University of Southern California, said: "Our conclusion is that by pushing the mice into an extreme state and then bringing them back - by starving them and then feeding them again - the cells in the pancreas are triggered to use some kind of developmental reprogramming that rebuilds the part of the organ that's no longer functioning." |
There were benefits in both type 1 and type 2 diabetes in the mouse experiments. | |
Type 1 is caused by the immune system destroying beta cells and type 2 is largely caused by lifestyle and the body no longer responding to insulin. | |
Further tests on tissue samples from people with type 1 diabetes produced similar effects. | |
Dr Longo said: "Medically, these findings have the potential to be very important because we've shown - at least in mouse models - that you can use diet to reverse the symptoms of diabetes. | Dr Longo said: "Medically, these findings have the potential to be very important because we've shown - at least in mouse models - that you can use diet to reverse the symptoms of diabetes. |
"Scientifically, the findings are perhaps even more important because we've shown that you can use diet to reprogram cells without having to make any genetic alterations." | "Scientifically, the findings are perhaps even more important because we've shown that you can use diet to reprogram cells without having to make any genetic alterations." |
Separate trials of the diet in people have been shown to improve blood sugar levels. The latest findings help to explain why. | Separate trials of the diet in people have been shown to improve blood sugar levels. The latest findings help to explain why. |
However, Dr Longo said people should not rush off and crash diet. | |
He told the BBC: "It boils down to do not try this at home, this is so much more sophisticated than people realise." | |
He said people could "get into trouble" with their health if it was done without medical guidance. | |
Dr Emily Burns, research communications manager at Diabetes UK, said: "This is potentially very exciting news, but we need to see if the results hold true in humans before we'll know more about what it means for people with diabetes. | Dr Emily Burns, research communications manager at Diabetes UK, said: "This is potentially very exciting news, but we need to see if the results hold true in humans before we'll know more about what it means for people with diabetes. |
"People with type-1 and type-2 diabetes would benefit immensely from treatments that can repair or regenerate insulin-producing cells in the pancreas." | "People with type-1 and type-2 diabetes would benefit immensely from treatments that can repair or regenerate insulin-producing cells in the pancreas." |
Follow James on Twitter. | Follow James on Twitter. |