Cancer Archive

Though only about 1% of skin cancers are melanomas, they are responsible for 90% of skin cancer deaths. Recent advances in treatment options have improved survival rates for melanoma, but it’s still best to take preventive steps to protect your skin.

A recent study suggested that eating red or processed meats won't necessarily harm your health. What is the truth?

The news headlines were everywhere: "It's Okay to Eat Red Meat." The source for this statement was a study published online Oct. 1, 2019, in Annals of Internal Medicine.

An international team of researchers conducted five systematic reviews that looked at the effects of red meat and processed meat on multiple health issues, such as heart disease, cancer, diabetes, and premature death.

On call

Q. I'm 80 and no longer do colon cancer screening. However, I recently noticed some bleeding from my rectum. Does that change my need for a colonoscopy?

A. Screening for a disease means the person has no symptoms. Since you now have rectal bleeding, a colonoscopy would be considered not a screening test, but a diagnostic test. Whether you have it now or wait to see if more bleeding occurs depends upon many factors. The most important question is whether anything found on the colonoscopy will lead to treatment that improves your quality of life.

Many women are reporting symptoms they believe are associated with their breast implants. Sometimes called breast implant illness, this combination of vague symptoms—such as hair loss, fatigue, anxiety, and depression—is also associated with a number of other conditions, including menopause, thyroid problems, and autoimmune conditions. Researchers are now working with patient advocacy groups to better understand the problem. Experts recommend that women understand the potential risks and benefits of breast implants before having the surgical procedure.

Research we're watching

People who run — even in small amounts — are less likely to die during a given period compared with those who don't run, according to an analysis published online Nov. 4, 2019, by the British Journal of Sports Medicine. The benefit appears even among people who run for less than 50 minutes once a week, at speeds below 6 mph.

Researchers began their review of 14 studies, involving more than 200,000 people, in hopes of determining whether running can stave off deaths from heart disease, cancer, and other causes. They also sought to find out how much running people need to do to benefit. The studies tracked participants for periods ranging from five-and-a-half to 35 years. Over the course of these studies, 25,951 of the participants died. When comparing those people to those who lived until the end of the study, the researchers found that people who ran, no matter the amount, were 27% less likely than nonrunners to die from any cause during the study period. Runners also had a 30% lower death rate from cardiovascular disease and a 23% lower death rate from cancer. While running was linked with longer life and less disease in these studies, this doesn't necessarily prove that it was the running that actually caused better health. But the results suggest that lacing up those sneakers and going for a quick jog might improve your health.

Research we're watching

People living in rural areas of the country appear to be more likely to die from preventable causes compared with people in more urban locations, says a CDC report. The report looked at deaths from 2010 to 2017 and found that people in rural locations were more likely to die from preventable conditions, including cancers and heart and respiratory diseases. In 2010, about 29% of cancer deaths in rural areas were potentially preventable, compared with 18% of cancer deaths in urban areas. In addition, 45% of heart disease deaths in rural locations were deemed preventable, compared with 24% of heart disease deaths in urban areas. The authors suggested several strategies to reduce disparities, including better screening programs and initiatives to encourage better eating and exercise habits, as well as smoking cessation.

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Many people have experienced unpleasant symptoms related to food, but such a reaction does not necessarily mean that you have a food allergy. The symptoms could indicate a food intolerance, food sensitivity, or possibly celiac disease.

Statins have been prescribed for decades to lower cholesterol, but a recent study found that one type of statin may provide people with certain kinds of liver disease protection from developing liver cancer.

New research again links increased breast cancer risk to longer use of hormone therapy.

The link between hormone therapy and breast cancer has been recognized for years. But an analysis published Aug. 29, 2019, in The Lancet has added some additional information to the discussion. The analysis looked at 58 studies that included information on the type and timing of hormone use in individual women, and their body mass index. Researchers began gathering the studies in 1992 and continued until 2018.

We asked Dr. Wendy Chen, an assistant professor of medicine at Harvard Medical School, to help us sort through both the old and new information on hormone use and breast cancer and what it means for women considering starting hormone therapy.

Research we're watching

Doing genetic tests on all women with breast cancer, as compared with the typical practice of just testing those with a family history of the disease, is worth the extra cost, according to a study published online Oct. 3, 2019, by JAMA Oncology. The study authors say their findings should prompt the expansion of genetic testing to all women diagnosed with breast cancer. It's clear that testing breast cancer patients for genetic variants that raise breast cancer risk (such as BRCA1, BRCA2, and PALB2) would enable doctors to identify more women who carry these variants and who might benefit from preventive strategies. But researchers wondered whether doing so would be too costly. To answer that question, they used a computer model to analyze data from more than 11,000 women. They found that not only would the cost of testing all American women with breast cancer be balanced out by later savings on health care services, but also that just one year of testing could prevent an estimated 9,700 new cases of breast and ovarian cancer and 2,400 deaths.

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