Wednesday February 19, 2020

More Sexual Partners Doubles the Risk of Developing Prostate Cancer: Study

According to a recent study, the risk of prosate cancer is doubled by multiple sexual partners

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FILE - A biotechnician demonstrates the loading of a genome sequencing machine at the J. Craig Venter Institute in Rockville, Maryland. Relative to their ability to pay, cancer patients in China and India face much higher prices than wealthier U.S. patients. VOA

Sydney, Nov 22, 2016: The more sexual partners a man has may double his risk of developing prostate cancer, a study has claimed.

The study found that men who had more than seven sexual partners in their lifetime were twice as likely to have prostate cancer than those with fewer than three partners.

Men who are sexually active earlier may also be a risk, the researchers said.

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“The more partners you had, the more orgasms you had, the younger you were when you first had sex, all pointed to an increased prostate cancer risk,” Visalini Nair-Shalliker, doctoral student at Cancer Council New South Wales in Australia, was quoted as saying to smh.com.au.

It’s believed this increased risk associated with sexual activity could be due to hormonal changes.

Sexual activity and metabolism were associated with antigen, a male sex hormone that is also strongly linked to the initiation of prostate cancer.

Other risk factors included having a father with a history of prostate cancer, a previous diagnosis of prostatitis or benign prostatic hyperplasia.

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In addition, the study found that being overweight or obese was also associated with increased risk of the disease, but to a lesser extent.

There was no association found between prostate cancer risk and circumcision, vasectomy or erectile function, the researchers observed.

It is important to identify risk factors so men could be given advice, and men aged over 50 who fell into those risk categories should speak to their doctors, especially if they had a family history of the disease, Nair-Shalliker said.

However, “we can’t make any recommendations around sexual activity because it’s multi-faceted. We’re not saying ‘increase or decrease your sexual activity’ because the evidence is still grey about that,” Nair-Shalliker noted, in the paper published in the journal in the International Journal of Cancer. (IANS)

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More Vegetable Consumption May Not Cure Prostate Cancer: Study

Although the MEAL study revealed no positive impact on prostate cancer, it did demonstrate that behavioural modification can lead patients to make healthier food choices

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Cancer
According to the researchers, scientific studies have identified a strong role for changing diet to improve outcomes in diabetes and cardiovascular disease, but not in cancer. Pixabay

Patients with prostate cancer assigned to eat seven or more servings of vegetables and fruits daily saw no extra protection from the increased consumption of micronutrients, researchers have found.

Previous studies suggest that foods with high carotenoids have antioxidant properties, which can protect men from prostate cancer. Some of those foods include leafy greens, broccoli, cabbage, carrots and tomatoes. However, the study, published in the Journal of the American Medical Association, shows that eating more produce won’t cure, nor stop the disease.

“These data indicate that despite prevailing scientific and public opinion, eating more vegetables will not alter the course of prostate cancer. It will not, to the best of our knowledge, suppress or cure it,” said study researcher J. Kellogg Parsons from University of California.

“However, while eating a healthy diet rich in fruits and vegetables and getting more exercise may not cure cancer, it may keep the body stronger and healthier, which may help patients tolerate cancer treatments,” Parsons added.

For The Men’s Eating and Living (MEAL) study, researchers enrolled 478 men aged 50 to 80 years at 91 sites in the US. The patients had been diagnosed with early-stage prostate adenocarcinoma and enrolled in an active surveillance programme in which patients defer immediate treatment until the disease advances.

Patients were randomised to a control group that received written information about diet and prostate cancer or to a telephone counselling behavioural intervention programme that encouraged participants to eat foods high in carotenoids, such as leafy greens, carrots and tomatoes, and cruciferous vegetables such as broccoli and cabbage.

Both groups were monitored for two years. Patients assigned to the intervention increased their intake of fruits and vegetables to a statistically significant degree, and significantly more than what control patients did. These findings were supported by significant changes in the blood carotenoid levels of the patients.

Cancer
Patients with prostate cancer assigned to eat seven or more servings of vegetables and fruits daily saw no extra protection from the increased consumption of micronutrients, researchers have found. Pixabay

“Nonetheless, these data fail to support prevailing assertions in clinical guidelines and the popular media that diets high in micronutrient-rich vegetables improve cancer-specific outcomes among prostate cancer survivors,” said study researcher James Marshall.

According to the researchers, scientific studies have identified a strong role for changing diet to improve outcomes in diabetes and cardiovascular disease, but not in cancer.

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Although the MEAL study revealed no positive impact on prostate cancer, it did demonstrate that behavioural modification can lead patients to make healthier food choices. (IANS)