Prevention



22 Dec 09

Can Olive Oil Prevent Breast Cancer?

Ana Ripoll, Rector of Universitat Aut-noma de Barcelona (UAB), and Pedro Barato, President of “Organizaci-n Interprofesional del Aceite de Oliva Espa-ol”, signed a research agreement to carry out an in depth study on how the intake of olive oil can work towards preventing and fighting against breast cancer. The Multidisciplinary Group on Breast Cancer Research (GMECM), directed by Dr Eduard Escrich, lecturer of the Department of Cell Biology, Physiology and Immunology, will be working on this research project during the next five years. GMECM has demonstrated in previous researches that a moderate intake of virgin olive oil slows down the spreading of this cancer.

Researchers at GMECM aim to determine the possible activity of common components of the human diet with the objective of formulating scientific opinions on the health of the population or levels of risk, all within the field of breast cancer prevention. Among the results obtained until now researchers highlight the fact that a moderate intake of virgin olive oil can slow down the spreading of this cancer due to the action of mechanisms which counterattack the possible harmful effects of fats, while an excessive intake of seed oils has damaging effects.

In the study, which will begin this coming year, researchers will continue to study the effects olive oil can have on this type of cancer, with experimental studies and with human cell lines and samples. Among the research studies to be carried out, some of the most prominent focus on the effects fats and oils can have on mammary tumours, and especially those of extra virgin olive oil, and an analysis of the molecular changes found in these tumours in all of the genome and in the specific genes implicated in this pathology.

Olive oil lowers risk of breast cancer







18 Dec 09

Sandy Hutchens likes coffee as much as the next guy. But he was surprised to find out that it may prevent cancer.

Harvard researchers are finding an intriguing link between coffee and the prevention of an aggressive type of prostate cancer.

Prostate cancer kills 27,000 men annually. So this research comparing the history of thousands and thousands of men raises the possibility of a simple and effective prevention in this deadly disease.

The researchers discovered that men who drank six or more cups of coffee a day had a 60 percent lower risk developing the advanced form of the disease when compared to men who drank no coffee at all.

Even men who drank just one to three cups are showed a lower risk, about 20 percent, of developing the aggressive cancer.

Prostate cancer specialist Dr. Ihor Sawczuk, of Hackensack University Medical Center, says the researchers were not exactly sure what it is about the coffee that might affect the cancers. But he says it’s too early to recommend boosting coffee drinking to men, although one cup of coffee might be helpful.

“I think those that don’t drink coffee should consider perhaps a cup a day may help build up their immune system,” he said. “I think what we need to remember is there may be more to this story.”

And finding out more details will be the next job for researchers. Because one study is not enough for scientists, the findings will need to be confirmed.

But if coffee helps prevention, it’s a bonus for those who already drink it and a simple benefit for those who don’t.

Prostate cancer survivor Richard Williamson has made some already-proven lifestyle changes for his recovery. He’s lost 25 pounds, walks two miles daily and, because he doesn’t eat enough fruits and vegetables, now frequents a health food store near his home to get his vegetables in a drink he likes.

“I do my walk and then I stop there,” he said. “I do that three or four times a week.”

Other proven prevention habits include:

“Decrease the total amount of fat, taking good fat, for example, the omega-3,” Dr. Sawczuk said. “Tomatoes have lycopene, especially the skin of tomatoes. These are good substancse to ingest. Soy products, apples, perhaps even a glass of red wine.”

And now, maybe a cup of coffee or two. One way coffee might be working is that it’s known to help the body use insulin. And high insulin has already been proven to increase risk of prostate cancer.







26 Nov 09

Researchers could help elucidate how pregnancy provides protection against breast cancer and the findings may lead to a new way to prevent or treat the disease.

The University of Albany has connected the pregnancy protein alpha-fetoprotein (AFP) to breast cancer slowing down in rats exposed to pregnancy hormones such as estrogen, progesterone, or human chorionic gonadotropin.

These pregnancy hormones were shown by the authors to induce AFP during the term of pregnancy.

The hormones also appear to inhibit breast cancer growth in previous rat studies, although estrogen and progesterone fuel the growth of breast cancer in humans.

Herbert Jacobson, PhD, who has been studying AFP in rats for over twenty years, believes the protein is the cause of the pregnancy-related reduction in breast cancer risk.

“Twenty-five years ago I deduced that this must be the agent responsible for lowering breast cancer risk in women who have been pregnant,” he tells WebMD. “And the research we have done since then supports this hypothesis.”

Pregnancy, particularly before the 30 years old, lowers a woman’s lifetime risk of developing breast cancer. Also having more than one child is preventative.

Alpha-fetoprotein is produced by the fetus, and size of the protein during pregnancy can help to screen out possible birth defects.

Extremely high AFP levels portend the appearance of neural tube defects or an abdominal wall defect known as omphalocele, and extremely low levels suggest Down syndrome.

The protein is usually not detected in the blood of healthy men and women who are not yet pregnant. In these groups, elevated AFP levels suggest the presence of some cancers.

In their new study, in the December issue of Cancer Prevention Research, Jacobson and associates treated cancer-exposed rats that were not pregnant with estrogen, estrogen plus progesterone, or human chorionic gonadotropin (HCG).

As in previous studies, all of these treatments are associated with reduced levels of breast cancers in the high-risk rats.

Each of the hormone treatments were also connected with elevated AFP levels and AFP was found to slow down the growth of breast cancer cells in lab cultures.

“Hormones in pregnancy, such as estrogen, all induce AFP, which directly inhibits the growth of breast cancer,” Jacobson says in a news release.
Second Opinion

However, devil’s advocate and cancer specialist Powel Brown, MD, PhD, says the research does not show that this is true beyond a shadow of a doubt.

As is the case with these kinds of studies, says Sandy Hutchens Cancer Prevention, there will be those that promote the idea and there will be detractors. We await the results of further studies and even possibly some proof on this unique view into breast cancer prevention.

Pregnant and Facing Breast Cancer