Breast Cancer Archive

Screening tests for lung and breast cancer—chest computed tomography (CT) scans and mammograms—may offer clues about a person’s risk of heart disease.

In the journals

Smoking causes lung cancer — no surprise there. But a new study found that high dosages of vitamin B6 or B12 supplements were associated with three to four times the lung cancer risk in male smokers compared with smokers who did not take the supplements. The results were published in the Aug. 22, 2017, Journal of Clinical Oncology.

Researchers examined information from more than 44,000 men ages 50 to 76. At enrollment, the men reported on their smoking history and their B vitamin supplement use over the previous 10 years. In the study, high intake of B vitamin was classified as 20 milligrams (mg) of B6 per day or 55 micrograms (mcg) of B12. (The recommended daily intakes for men ages 51 and older are 1.7 mg for B6 and 2.4 mcg for B12.)

As a group, men have nudged down their stroke numbers over the past decade. Why haven't women seen the same improvement?

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Men are less likely to have strokes than they were 10 years ago, but the risk for women has stayed about the same, according to a study of stroke data from Ohio and Kentucky, published online on August 21 by Neurology.

The question is, why?

"This study raises important concerns about the lack of decline in stroke rates in women," says Dr. Kathryn M. Rexrode, associate professor of medicine and chief of the Division of Women's Health at Harvard Medical School. Study authors suggested it's likely that better treatments for high blood pressure, high cholesterol, and diabetes, and a reduction in the number of people smoking helped to reduce the risk for men for having the most common type of stroke — ischemic stroke, which is typically caused by a clot that blocks blood flow to the brain. But women, who in theory should benefit from the same interventions, didn't see any improvement in their stroke rates over the study period.

All women, regardless of risk, should focus on preventing diabetes.

Can a blood test act as a crystal ball, alerting you to a health hazard that may await you down the road? Researchers say they've found one that may do just that for diabetes. It could help predict whether women — even ones with no other signs of the disease — may develop the condition in the future.

In a study published online June 21 by the Journal of Clinical Lipidology, researchers showed that in many cases, a test called lipoprotein insulin resistance (LPIR) did a better job, at predicting which women would go on to develop diabetes, says Dr. Samia Mora, one of the study authors and associate professor of medicine at Harvard Medical School. In many cases, it was more accurate than traditional measures — such as

Experts says it's too early for alarm, but the findings provide another good reason to pay attention to oral health.

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Is gum disease linked to cancer? A study published in the August issue of Cancer Epidemiology, Biomarkers & Prevention suggests a tie between the two, finding that older women with gum disease had a higher risk for cancers of the breast, lung, and esophagus as well as melanoma, the most dangerous form of skin cancer.

But it's not time to sound the alarm just yet, because while the study was published in a well-regarded journal, it had limitations that may have affected the results, says Alessandro Villa, instructor in oral medicine, infection, and immunity at the Harvard School of Dental Medicine and associate surgeon at Brigham and Women's Hospital. Even so, he says, your oral health should still be a top priority because while it may be premature to say gum disease and cancer are linked, research has shown that gum disease, also known as periodontal disease, may increase the risk of heart disease and other health problems.

Challenging a long-held belief, a new study found that women who received epidural anesthesia during labor did not have prolonged labor or higher rates of cesarean births.

Surveys of over 900 men who were diagnosed with prostate cancer in the 1990s found that approximately 15% had some regret over their treatment choices. Study authors encourage doctors and patients to have frank and thorough discussions about about the risks and benefits of various forms of treatment for prostate cancer.

On call

Q. I am 77 and in overall good health. My previous colonoscopies to check for colon cancer have been normal. Can I stop having them?

A. The major benefit of colon cancer screening is seen in men ages 50 to 75. After age 75, the potential benefit is smaller, and the risks and side effects of the procedure — like bleeding and perforation of the colon — are higher.