Tag: diet

High-cholesterol diet causes tumours to form 100 times faster

High-cholesterol diet causes tumours to form 100 times faster

High-cholesterol diets send cancer cells into overdrive and cause tumours to grow 100 times faster, according to new research.

Scientists have shown for the first time the mechanism which means fatty cholesterol significantly increases the risk of colon cancers, opening the door for new drugs which could prevent this.

As well as looking at ways this cancer-boosting pathway could be blocked, researchers from University of California Los Angeles (UCLA) who made the discovery are investigating whether other forms of cancer are also sent into similar growth frenzy by high levels of cholesterol.

“We were excited to find that cholesterol influences the growth of stem cells in the intestines, which in turn accelerates the rate of tumour formation by more than 100-fold,” said Dr Peter Tontonoz from UCLA’s David Geffen School of Medicine.

”While the connection between dietary cholesterol and colon cancer is well established, no one has previously explained the mechanism behind it.”

Cholesterol is an essential component of the outer membrane of all human cells and is produced in the liver as an essential building block for other key substances.

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Drinking alcohol raises risk of cancer by snapping DNA, scientists find

Drinking alcohol raises risk of cancer by snapping DNA, scientists find

Drinking alcohol raises the risk of cancer by damaging DNA, scientists have discovered for the first time, leading health experts to call for people to cut down on their consumption.

Alcohol is contributes to more than 12,000 cases of cancer each year in Britain, but nobody had shown why it was so harmful.

Now a new study by the Medical Research Council Laboratory of Molecular Biology at Cambridge University, has found that when the body processes alcohol it produces a chemical called acetaldehyde which is harmful to DNA.

The damage happens in blood stem cells, which create the red and white blood cells that carry oxygen through the body and help fight infections.

The researchers found that acetaldehyde snaps the DNA of stem cells, permanently altering the genetic code and triggering cancer.

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Eating fish may help you sleep better

Eating fish may help you sleep better

Forget warm milk. A new study from the University of Pennsylvania says that fish may be the key to a good night’s sleep.

The paper, published Thursday in Scientific Reports, found an association between regular fish consumption and high sleep quality among Chinese schoolchildren, likely thanks to the omega-3 fatty acids found in fish. Largely as a result of that improved sleep, the researchers found, the children also scored higher on IQ tests.

“There’s a relationship between fish consumption and higher cognitive functioning. What what we document here is that it’s the better sleep that explains the relationship,” says Adrian Raine, one of the paper’s authors and a professor of criminology, psychiatry and psychology at Penn. “From A to B to C: From fish consumption to better sleep to higher cognitive functioning.”

 The researchers asked 541 schoolchildren in China between ages 9 and 11 to describe their eating habits, including how often they ate fish. Their parents, meanwhile, were asked to answer questions about the kids’ sleep patterns. Researchers then administered IQ tests when the children turned 12.They found links between eating fish regularly — the more, the better — and both improved sleep and higher IQ scores. But, Raine explains, it appears that many of the cognitive benefits can be traced back to bedtime. “The brain is so much more plastic early on in child development,” he says. “We might anticipate that fish consumption earlier in life may be particularly beneficial for a child’s sleep and cognitive functioning.”

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Drinking 7 glasses of water can cut 200 calories off daily intake

Drinking 7 glasses of water can cut 200 calories off daily intake

A US study has found that drinking just 1% more water can reduce total daily calorie consumption, in particular the intake of sugar, sodium and cholesterol. In fact, drinking seven glasses of water per day could cut total daily intakes by up to 200 calories.

Current guidelines recommend drinking 1 to 1.5 litres of water per day. There’s nothing new or revolutionary about that advice, especially for dieters or detoxers looking to flush out the body’s toxins.

However, new research, published in the Journal of Human Nutrition and Dietetics, has found that a few extra glasses of water can increase the feeling of “fullness” and reduce daily calorie consumption.

The researchers studied the dietary habits of more than 18,300 people between 2005 and 2012.

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Adopting high fibre diet could dramatically cut risk of bowel cancer

Adopting high fibre diet could dramatically cut risk of bowel cancer

Corn biscuits for breakfast; veggie dogs for lunch; okra, tomato and black-eyed peas for tea. It’s probably not a diet to tempt most Americans into shedding a few pounds.

But swapping westernised eating habits for the high-fibre diet of millions of people living in rural southern Africa could dramatically cut the risk of bowel cancer in the West, according to an innovative ‘diet swap’ study.

In research which saw 20 Americans switching diets with 20 South Africans living in rural Kwazulu, scientists saw dramatic effects on bowel cancer risk indicators after just two weeks.

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Eating fatty fish can reduce risk of arthritis

Eating fatty fish can reduce risk of arthritis

A NEW study finds that eating a weekly portion of salmon or other fatty fish, such as trout or mackerel, could reduce your risk of developing rheumatoid arthritis by more than half.

In a study published Monday in the Annals of Rheumatic Diseases, the Karolinska Institute in Stockholm found that the omega-3 fatty acids in fish can cut the risk of chronic inflammatory disease by 52 percent.

Prior research from 2009 suggests that consuming fish oils could help reduce inflammation that leads to a variety of diseases, including rheumatoid arthritis. In this study, researchers highlighted the benefit to long-chain omega-3 polyunsaturated fatty acid (Pufa) content in fish.

If you prefer lean fish, such as cod or canned tuna, the same benefit could be found in eating four servings a week, the researchers found. Long-term, weekly consumption of any type of fish was associated with a 29 percent lower risk of the disease.

However you’ll need to sustain a regular diet of fish for at least 10 years to enjoy the health prevention against the condition, they added.

To reach their findings, head researcher Alicja Wolk and her team analyzed the diets of 32,232 Swedish born between 1914 and 1948. Subjects completed questionnaires about their food intake and lifestyle in 1987 and 1997. Women who consumed at least 0.21g of omega-3 Pufas daily had the 52 percent reduced risk, the study found. – AFP Relaxnews

Raw vegetables and fruits counteract heart risk genes

Raw vegetables and fruits counteract heart risk genes

People who are genetically susceptible to heart disease can lower their risk by eating plenty of fruit and raw vegetables, a study suggests.

It says five or more daily portions should be enough to counteract culprit versions of a gene on chromosome 9, thought to be possessed by a fifth of people of European ancestry.

Healthy diets appeared to weaken its effect.

The US researchers investigated more than 27,000 people for their work.

The findings were published in Plos Medicine journal.

These participants came from from around the globe, including Europe, China and Latin America.

The results suggest that individuals with high risk 9p21 gene versions who consumed a diet packed with raw vegetables, fruits and berries had a similar risk of heart attack as those with a low-risk variant of the same gene.

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