Friday November 16, 2018

High carbohydrate intake may increase cancer recurrence risk

Five-year survival rates among these patients continue to be low, in part because these cancers are often detected in the later stages

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Can sugar contribute to growth of cancer in your body? Pixabay
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Consuming high amounts of carbohydrates and sugar prior to treatment for head and neck cancer may increase the patients’ risks of cancer recurrence and mortality, a new study reports.

Patients who consumed the most total carbohydrates and sugars — in the form of sucrose, fructose, lactose and maltose — in the year preceding the cancer treatment were at greater risk of mortality from any cause during the follow-up period. Out of the 400 cancer patients in the study, published in the International Journal of Cancer, more than 17 per cent experienced recurrence of their cancer, and 42 patients died from it.

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Cancer can be caused by excessive intake of sugar and carbohydrates too. Pixabay

Associations among carbohydrate intake and patient outcomes differed by cancer type and stage, said lead author Anna E. Arthur, professor at the University of Illinois at Urbana-Champaign.

However, eating moderate amounts of fats and starchy foods such as whole grains, potatoes and legumes after treatment could have protective benefits, reducing the patients’ risks of disease recurrence and death, he added.

What We Know About Cancer Risk and Coffee

“Our results, along with the findings of other studies, suggest that diet composition can affect cancer outcomes,” said co-author Amy M. Goss, professor at the University of Alabama.

Higher mortality rates were found among people with oral cavity cancer who consumed the greatest amounts of total carbohydrates, total sugars and simple carbohydrates, but the researchers found no such associations among people who had oropharyngeal cancers.

Chronic diseases are not yet included in cancer prevention schemes.
Cancer can be caused due to too much sugar.

“Although in this study we found that higher total carbohydrate and total sugar were associated with higher mortality in head and neck cancer patients, because of the study design we can’t say that there’s a definitive cause-effect relationship,” Arthur said.

Five-year survival rates among these patients continue to be low, in part because these cancers are often detected in the later stages, putting patients at high risk of recurrence, the researchers said. IANS

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High Exposure to Radio Frequency Radiation Increase Risk of Cancer

Interestingly, the team found that rats exposed to whole body RFR lived longer than rats unexposed to any radiation

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cancer
High exposure to radio frequency radiation linked to cancer. Pixabay

Exposure to high levels of radio frequency radiation (RFR) — used in 2G and 3G cell phones — can increase the risk of cancer tumours in the heart, brain and adrenal gland, researchers have warned.

The study, led by the US National Institutes of Health’s National Toxicology Programme (NTP), looked at the effects of exposing rodents to extremely high levels of radiofrequency throughout the entire body.

While high levels of RFR caused cancerous tumours in the heart (found very rarely in humans), brain and adrenal gland, of male rats, the findings on female rats were ambiguous.

“The exposures used in the studies cannot be compared directly to the exposure that humans experience when using a cell phone. In our studies, rats and mice received radio frequency radiation across their whole bodies,” John Bucher, researcher from the NTP, said in a statement.

“By contrast, people are mostly exposed in specific local tissues close to where they hold the phone,” Bucher added.

For the study, the team housed the animals in chambers specifically designed for the study.

Exposure to RFR began in the womb for rats and at 5 to 6 weeks old for mice, and continued for up to two years, or most of their natural lifetime.

Breast Cancer
Cancer ribbon. Pixabay

However, the RFR exposure was intermittent — 10 minutes on and 10 minutes off — totalling about nine hours each day.

In addition, the RFR levels ranged from 1.5-6 watts per kilogram in rats, and 2.5-10 watts per kilogram in mice.

“We believe that the link between radio frequency radiation and tumours in male rats is real,” Bucher noted.

Interestingly, the team found that rats exposed to whole body RFR lived longer than rats unexposed to any radiation.

“This may be explained by an observed decrease in chronic kidney problems that are often the cause of death in older rats,” the researchers noted.

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According to the US Food and Drug Administration (FDA), while animal studies contribute to discussions on the topic, “this study was not designed to test the safety of cell phone use in humans, so we cannot draw conclusions about the risks of cell phone use from it.”

Since the exposure levels and durations in the studies were greater than what people experience, “we agree that these findings should not be applied to human cell phone usage”, the FDA said on Thursday. (IANS)