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Colorectal cancer is killing more 20 to 30 year olds. We now have one clue about why.


It’s one of the mysteries that has puzzled cancer epidemiologists: Why are younger and younger people becoming sick with colorectal cancer?

In 2017, researchers at the American Cancer Society showed colorectal cancer is rising sharply in younger generations. For people in their 20s and 30s, colon cancer rates increased 1 to 2 percent between the mid-1990s to 2013. And rectal cancer rate shot up even more dramatically — rising 3 percent per year in the same age cohort. 

Overall, those born in 1990 have double the risk of developing colon cancer and four times the risk of getting rectal cancer compared to those born around 1950. So in response to the alarming trend, in 2018 the society lowered the age for routine colorectal cancer screening to 45 from 50. 

“It’s not like the problem is bad and has stabilized,” said Thomas Weber, the director of surgical oncology at New York’s Northwell Health, who organizes an annual summit for researchers trying to solve the mystery. “The problem has continued to worsen.”

But a new study published Thursday in JAMA offers one potential explanation: the rising rates of obesity. 

Since 1980, the obesity prevalence has doubled in more than 70 countries around the world. Thirty-nine percent of US adults, are now obese, along with 19 percent of children and adolescents

The JAMA study looked at 85,000 women and found a link between a higher body weight, particularly obesity, and a greater risk of colorectal cancer.

Click here to read the full article sourced from Vox.com 


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Half of over 60s 'ignore bowel cancer screening in England'


Half of people in England sent a home-testing kit for bowel cancer in 2015 did not use it, according to research in the European Journal of Cancer.

Fewer men than women returned the kits, which are designed to detect the disease before symptoms appear.

The current screening kit requires small stool samples to be posted for screening in specially sealed envelopes.

Cancer Research UK said it was very concerned by the figures.

In 2015, only 49% of people aged 60-64 who received a home test kit for the first time returned their samples, down from 53% in 2010.

Anne Parmenter, 63, from south London, received a bowel cancer testing kit in the post on her 60th birthday.

"I wasn't going to do it but, in the end, I thought it was daft not to and sent it back. 

"The following Tuesday I received a letter asking me to go to hospital for more tests. 

"I had no symptoms before and didn't feel unwell, so I feel that kit saved my life," she says.

She was diagnosed with bowel cancer and had surgery and chemotherapy. 

"The cancer has changed how I look at life because none of us know what is around the corner. 

"Three years ago, I had no idea of what was to come but I am now slowly recovering and getting back to normal."

New test potential

The research, from University College London, looked at data from 4.4 million men and women sent the bowel cancer screening kits over five years in England.

Those living in poorer areas were less likely to take part than those in wealthier areas.

Among women, 56% returned samples, compared with 47% of men.

Cancer Research UK said people were missing out on a test that could reduce their risk of dying from bowel cancer by up to 25%.

The charity said it hoped a new screening test already in the pipeline for an autumn introduction in England would lead to more people choosing to take up the opportunity.

The Faecal Immunochemical Test (FIT) is easier to use because it requires only one stool sample instead of three. And it is more accurate at detecting potential cancers.

It was recently announced that bowel cancer screening in England would start 10 years earlier, at age 50, to allow more cancers to be picked up earlier.

The change brings England in line with Scotland, where bowel screening is automatically offered from 50. 

'Extremely effective'

Dr Christian von Wagner, lead researcher from UCL, said: "The fact fewer and fewer people are returning their kits and that inequalities in the system are widening is very worrying. 

"There is an urgent need to revolutionise bowel cancer screening because the earlier cancer is spotted, the more lives can be saved."

He said research had shown that the new FIT test could increase uptake by 7%.

Sara Hiom, director of early diagnosis at Cancer Research UK, said: "Our bowel cancer screening programme is extremely effective at detecting early disease before symptoms show themselves, so it's very concerning that so many people are missing out on this potential health benefit."

She also said there was "good evidence" the new test would help reduce barriers and lead to more people taking part.

"So, the sooner it is introduced and made available to everyone eligible the better," she added.

Every year about 28,500 people aged 60 and over are diagnosed with bowel cancer in England.

Bowel cancer is the fourth most common cancer in the UK, with 42,000 people diagnosed every year.

More than 16,000 people die from the cancer annually in the UK.

What are the symptoms of bowel cancer?

  • bleeding from your bottom and/or blood in your faeces
  • a persistent and unexplained change in bowel habit 
  • unexplained weight loss
  • extreme tiredness for no obvious reason
  • a pain or lump in the stomach

 Click here to read the original article sourced from BBC.co.uk


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