New Vaccine Targets Breast Cancer in Mice
A new vaccine helped rid mice of a certain type of breast tumor, according to research published in the journal Cancer Research. The vaccine was effective against breast cancer caused by excess amounts of a protein called HER2, BBC News reports. HER2-positive breast cells can have more receptors than normal, leading to an aggressive type of tumor found in up to 30 percent of breast cancer cases. The researchers, from Wayne State University, told BBC News that the vaccine has the potential to be used to prevent tumors from developing in women without cancer. Still, experts say, the vaccine has been tested only in mice, so its potential risks, benefits, and side effects in humans are not known.
Mediterranean Diet's Health Benefits Are Many
People who adhere to a Mediterranean diet rich in olive oil, grains, fruits, nuts, vegetables, and fish are at less risk of developing heart disease, cancer, and Parkinson's and Alzheimer's diseases, according to research published online last week in the British Medical Journal. Researchers collected data on 1,574,299 people who participated in 12 international studies of dietary habits and health and were followed for three to 18 years. Those who maintained a Mediterranean-style diet had a mortality rate 9 percent lower than that of other participants; they benefited from a 9 percent drop in death from cardiovascular disease, a 13 percent reduction in cases of Parkinson's and Alzheimer's diseases, and a 6 percent decrease in cancer.
Getting Medical Care at Drugstores and Supermarkets
More than 1,000 medical clinics have opened in supermarkets and drugstores in the past few years. In operation during daytime hours, weekends, and evenings, the clinics are typically staffed by nurse practitioners who treat a limited number of simple but acute conditions such as ear infections, strep throat, and urinary tract infections and offer some preventive care, mostly immunizations. Many physicians have reacted negatively to this trend, expressing concerns that nurse practitioners may not be qualified to diagnose and treat these conditions and that the clinics may disrupt the patient-physician relationship, since doctors won't necessarily know about treatment their patients receive there. Advocates have argued that the clinics offer a reliable and convenient source of medical care for people who can't get a timely appointment with their doctors or who can't get to their doctors during regular office hours.
HIV Infections in Black Men and Women
New HIV infections in black women occurred at nearly 15 times the rate of those in white women in 2006, new data indicate. African-American women developed 55.7 infections per 100,000 versus 3.8 infections per 100,000 white women, according to the September 12 issue of the Centers for Disease Control and Prevention's Morbidity and Mortality Weekly Report. Black men had an HIV incidence rate that was six times that of white men in 2006; gay and bisexual men accounted for about 63 percent of all infections in black men that year. In August, the CDC estimated that about 56,300 new infections occurred nationwide in 2006, up from earlier estimates of about 40,000. This week's report breaks down the new infections by race, gender, age, and other demographic measures.
—January W. Payne