Tuesday November 20, 2018

Cancer: Salient Features of The Killer Disease

There are more than 100 types of cancers; any part of the body can be affected

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Previous research has shown that obesity and high-fat diets both together and independently increase the risk of pancreatic cancer.
Previous research has shown that obesity and high-fat diets both together and independently increase the risk of pancreatic cancer. Pixabay
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* Cancer is a leading cause of death worldwide, accounting for 7.6 million deaths.

* India has nearly 3 million cancer patients.

* A million new cases are reported in India every year.

* Deaths from cancer worldwide are estimated to reach 13.1 million deaths in 2030.

* Lung and oral cancer is the most common among men.

Cancer
Representational image. Pixabay

* Cervix and breast cancer is the most common among women.

* Tobacco use is the most important risk factor for cancer causing 22 percent of global cancer deaths and 71 percent of global lung cancer deaths.

* Lung, stomach, liver, colon and breast cancer cause the most cancer deaths each
year.

* Cancers such as breast, cervical and colorectal cancer can be cured if detected early and treated properly.

Also Read: Outdoor Jobs Carry Different Risks of Skin Cancer

* There are more than 100 types of cancers; any part of the body can be affected.

* One-fifth of all cancers worldwide are caused by a chronic infection; for example human papillomavirus (HPV) causes cervical cancer and the hepatitis B virus (HBV) causes liver cancer. (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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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.

Also Read- Actress Richa Chadha Speaks Upon Patriarchal Society

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)