Daily Aspirin Blocks Bowel Cancer

By James Gallagher Health reporter, BBC News

A daily dose of aspirin should be given to people at high risk of bowel cancer, say scientists.

Two pills a day for two years reduced the incidence of bowel cancer by 63% in a group of 861 at-risk patients, a study reported in The Lancet said.

Newcastle University’s Prof Sir John Burn, who led the study, said the evidence “seems overwhelmingly strong”.

Other experts said the findings added to a growing body of proof that aspirin could be used in the fight on cancer.

The study was conducted on 861 patients with Lynch syndrome, which affects one in every 1,000 people.

They struggle to detect and repair damaged DNA which means they are more likely to develop a range of cancers including those of the bowel, womb and stomach.

‘Good deal’

When looking at all patients in the trial, those in the group given 600 milligrams of aspirin every day developed 19 tumours compared to 34 tumours in the other “control” group, a reduction of 44%.

When the researchers looked at just those patients who took the medication for at least two years the reduction was 63%.

There was also an effect on other cancers linked to Lynch syndrome, which fell by half in the treatment group.

Prof Sir John Burn, from Newcastle University, said there were 30,000 adults in the UK with Lynch syndrome.

If all were given the treatment he said it would prevent 10,000 cancers over 30 years and he speculated that this could possibly prevent 1,000 deaths from the disease.

However, there would also be side effects.

“If we can prevent 10,000 cancers in return for 1,000 ulcers and 100 strokes, in most people’s minds that’s a good deal,” he said.

“People who’ve got a clear family history of, particularly, bowel cancer should seriously consider adding low dose aspirin to their routine and particularly those people who’ve got a genetic predisposition.”

Aspirin is already well known to reduce the risk of heart attack and stroke in high risk patients.

Other studies over the past two decades have suggested the pain killer reduced cancer risk, but this was the first randomised control trial, specifically for aspirin in cancer, to prove it.

In 2010, a study suggested patients given aspirin had a 25% lower risk of death during that trial.

Prof Peter Rothwell, from Oxford University, who conducted that study said the latest research “certainly helps to build a consistent picture, all pointing in the same direction that there is a link with cancer”.

Cancer Research UK’s Prof Chris Paraskeva said: “This adds to the growing body of evidence showing the importance of aspirin, and aspirin-like drugs, in the fight against cancer.”

‘Balanced argument’

One of the questions asked by the research into aspirin was whether healthy people with no family risks should take the drug.

The lower the risk of heart attack or cancer, the lower the benefit of taking aspirin, yet there are still potentially deadly side effects.

Sir John said that it was a “finely balanced argument” and that he decided the risks were worth it for him.

“I think where we’re headed for is people that are in their 50s and 60s would look very seriously at adding a low dose aspirin to their daily routine because it’s giving protection against cancer, heart attack and stroke.

“But if they do that they’ve got to have their eyes wide open. They will increase their risk of ulcers and gastrointestinal bleeds and very rarely they will have a stroke caused by the aspirin.”

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In Ghana, Stigma Stymies Breast Cancer Prevention

Inter Press Service (IPS), by Paul Carlucci and Henrietta Abayie

(Ghana) — Mary Mingle thought she had a boil on her breast, so she bought some medication and tried to treat it at home. Two months later, bothered by persistent pain, she went to the doctor. There were eleven lumps in her breasts. She had first stage cancer, and her breasts, along with her uterus, would have to be removed.

“The doctor encouraged me,” she says. “The earlier I got them removed, the better. Otherwise, I would lose my life.”

Now, years after her surgery, only five people in her personal life know about her double mastectomy: her three children, her sister, and her husband. She’s been carrying her secret for about 20 years, hiding it from her extended family with a padded bra because she is afraid she will be stigmatised. She also hides it from her church, for the same reason.

“I don’t want them to be aware,” she says, her voice a tiny whisper.

Health officials in Ghana say breast cancer is a growing problem compounded by untrained medical practitioners, a lack of equipment, and unhealthy, sometimes fatal, cultural beliefs.

Historically, breast cancer has received scant attention in this West African country. International donors and institutions have been focused on communicable diseases like malaria and HIV/AIDS. Despite the fact that, according to Ghana Health Services (GHS), non-communicable diseases are the leading causes of death.

“It’s only now that attention is being drawn to it,” says Dr. Kofi Nyarko, head of the GHS cancer control programme.

There aren’t any solid statistics yet. In the capital of Accra, the Korle Bu Teaching Hospital, one of two full service cancer facilities in the country, is building an in-hospital registry of cases. In Kumasi, the country’s second biggest city in Ashanti Region, Komfo Anokye Teaching Hospital is also working on a database.

According to Dr. Verne Vanderpuye, a clinical oncologist at Korle Bu, the hospital gets about 3,000 breast cancer referrals a year.

“The main problem is that people don’t come early,” she says. “In an untreated case, when it’s moved beyond the breast, the average lifespan is one-and-a-half to two years. It will move from the breast, to the lymphs, to the lungs, to the liver, to the bones, and to the brain.”

Nyarko says the hospitals have gathered enough information for officials to know that breast cancer is becoming more prevalent, and its victims are younger and younger.

“It’s no longer a disease for the old,” he adds.

About three years ago, a focus on non-communicable disease began to take shape. In 2008, in collaboration with the World Health Organization (WHO), the Ministry of Health set up a national Cancer Steering Committee. The following year, Nyarko became the government’s cancer chief.

Working with WHO, GHS has identified cost effective treatment and detection strategies. Radiology equipment is scarce in Ghana – there are 10 mammogram machines in the whole country, six of which are in private institutions – so there will be a focus on clinical examinations, with mammograms for follow ups. It is a strategy that will require training.

“You need human resources,” Nyarko says. “You need infrastructure. You need certain equipment in place. You need all these things and money for training. The fact that you are a doctor or you are a nurse does not mean you can examine someone and say, ‘You are free (of cancer).’ You need to be trained.”

Nyarko expects a comprehensive national strategy will be launched by the end of the year. In addition to increased clinical examinations, the government would also like to build a full service hospital in Tamale, the biggest city in Ghana’s relatively undeveloped Northern Region.

There is also a big emphasis on prevention and awareness, with a series of posters and leaflets produced in partnership with the Geneva-based Union for International Cancer Control. Aside from promoting exercise and fresh food diets, the campaign is also meant to chip away at Ghana’s cultural oppression of breast cancer victims.

“People think that cancer is a call to death, but we are telling them that cancer can be cured,” Nyarko says. “We are aware that awareness is very low, even amongst the social elite. So we are working on that.”

It is not uncommon for victims to be shunned by their husbands or families. And in a country where women do a good deal of work, both around the house and in markets, husbands are reluctant to lose their wives to months of treatment.

Furthermore, chemotherapy is not covered by health insurance and can cost almost 2,000 dollars in just two weeks.

According to the World Bank, Ghana’s 24 million people live on an average of 1,283 dollars a year. The Jubilee oil find in the country’s Western Region is expected to help push GDP growth to 13.4 per cent in 2011, but there is no guarantee that will influence the average annual income.

“There’s also the fact that you could lose your breast,” says Vanderpuye. “We have a polygamous society, whether we like it or not. They might say you are not a whole woman.”

Like many African countries, Ghana is hugely religious. Many pastors tell their flocks that cancer is a spiritual illness, and that the answer is prayer, not surgery. As a result, some women do not go to the hospital until the tumours have spread. And then they die.

“They say the surgery kills, but they wait so long that the cancer spreads, so it appears surgery kills,” says Gladys Boateng, a breast cancer survivor and the founder of Reach for Recovery.

Civil society groups like Reach for Recovery also play a role in spreading awareness. Formed after Boateng survived her own bout with breast cancer, the group has reached 3,000 sufferers in the past eight years. Survivors give back to the group, visiting women in hospitals and helping with screening missions in remote or rural areas.

But even advocates keep secrets. Boateng will not discuss her husband’s reaction to her ordeal. She just offers a tight smile and declines comment. Nyarko, who has been watching international dollars lean heavily toward infectious diseases, is predicting a continued sea change in donor awareness. He is ready – all he needs are resources.

“It’s just now that there’s an emphasis on non-communicable diseases,” he stresses. “You know the right thing to do. You know the right thing to say. But you do not have the resources.”

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Lighting Up in the Morning and Cancer

People who smoke soon after getting up in the morning are more likely to develop cancer than those who light up later in the day, say US researchers.

A study of 7,610 smokers, published in the journal Cancer, said the effect was independent of other smoking habits.

Smoking in the first 30 minutes after waking nearly doubled the, already high, risk of lung cancer.

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Poverty Link to Starting Periods Younger

Girls from poorer backgrounds are more likely to start their periods at a younger age, thereby increasing their risk of breast cancer, a UK study says.

It found girls in lower socio-economic groups with typically poorer diets began at 12.1 years on average compared to 12.5 years for wealthier girls.

Their breast cancer risk was greater as they produced the hormone oestrogen longer, the study of 90,000 women says.

It was published in the journal Paediatric and Perinatal Epidemiology.

The research data being gathered from this group of women over 40 years is also helping to find the causes and risk factors associated with breast cancer.

The study is a partnership between Breakthrough Breast Cancer and the Institute of Cancer Research.

This research found that there was little change in the age of menarche (when a girl’s periods begin) for 40 years until the late 1980s.

Then the age dropped from 12.6 years to about 12.3 years, with the drop steepest in poorer areas.

Study author Danielle Morris, from The Institute of Cancer Research in Surrey, said the results suggested that girls, particularly from poorer backgrounds, are starting their periods younger.

“While we don’t know all the reasons behind this, changes in diet may have played a part.

“This decrease is important because the age at which a girl starts her periods can influence her chances of developing breast cancer later in life.”

Oestrogen effect

Dr Tabitha Randall, consultant paediatrician at Nottingham Children’s Hospital, said this was due to exposure to the hormone oestrogen.

“Girls who start their periods earlier are producing oestrogen for longer periods of time, although those who start their periods early normally finish early, but then they may start taking hormone replacement therapy.”

Previous research has shown that the female hormone oestrogen is linked to the growth of breast tumours.

Levels of oestrogen in the body are also influenced by diet and, therefore, body weight.

“Diet is important because fatty tissue turns male hormones into oestrogen,” said Dr Randall.

Previously, girls from higher socio-economic groups tended to start their periods younger because their affluence led to greater food intake and heavier body weight.

But researchers say the trend appears to have reversed.

Girls of lower socio-economic status are now starting their periods at a younger age (12.1 years) than girls from wealthier backgrounds (12.5 years) because they are the ones who tend to have poorer diets and are more likely to be overweight.

The age at which girls start their periods can be added to the list of risk factors for breast cancers, which are known to be a woman’s age, alcohol intake, weight and use of hormone replacement therapy and the contraceptive pill.

A family history of breast cancer may also increase the risk of developing the disease.

Professor Anthony Swerdlow, co-leader of the Breakthrough Generations Study, says that the incidence of breast cancer has risen progressively over a long time in the UK.

“We think these changes have come about through a combination of factors each of which individually makes a small difference.

“Understanding how these factors influence a woman’s risk of developing breast cancer should allow us to develop strategies for preventing the disease in the future.”

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