ontroversy over prostate cancer screening guidelines that discourage use of PSA tests did not significantly reduce use of the test, a five-year review of more than 275,000 visits at UT Southwestern Medical Center showed.

Revised guidelines from the United States Preventive Services Task Force in 2012 advised against PSA-based screening for prostate cancer, concluding that the potential harms of overtreatment outweighed the possible benefits of early detection. UT Southwestern cancer researchers' review of electronic medical records showed that this conclusion did not discourage the number of tests ordered, contrary to some other findings.

EAST LANSING, Mich. --- Intelligence -- and not just relentless practice -- plays a significant role in determining chess skill, indicates a comprehensive new study led by Michigan State University researchers.

The research provides some of the most conclusive evidence to date that cognitive ability is linked to skilled performance -- a hotly debated issue in psychology for decades -- and refutes theories that expertise is based solely on intensive training.

The bacterium that causes citrus greening disease, Candidatus Liberibacter asiaticus (CLas), is not only decimating citrus orchards, it also does a number in the guts of the insect that transmits it.

Citrus greening disease, also called Huanglongbing, has taken a terrible toll on Florida's $9 billion citrus industry and infected trees have already been detected in California. It is vector-borne, which means it is spread by insects, namely the Asian citrus psyllid. 

Environmental Defense Fund (EDF), one of the nation's largest environmental groups, which has been bankrolled with $50 million from the heirs to the Walmart fortune, has spent millions of dollars pushing a wholesale change in how the U.S. manages its fisheries, to the detriment of fishermen and with no benefit to nature

Humanities scholars mostly focus on the bereavement customs of White, Anglo-Saxon Protestants (WASPs) whereas Catholics, the overwhelming majority of Latinos, are overlooked in their unique funeral customs, which sometimes include overnight wakes and presenting food to the deceased.

Candi K. Cann, Ph.D., a humanities assistant professor at Baylor University took a group of her students in 2015 to a Latino funeral home in a Central Texas city where nearly 30 percent of the total population identifies as Hispanic or Latino, according to U.S. Census statistics.

In recent years, the incidence of breast cancer has been increasing worldwide, and breast cancer is becoming a serious object of public concern. The onset of breast cancer is closely related to the sex hormone estrogen, and estrogen antagonists such as tamoxifen have been used as anti-breast cancer drugs.

During pregnancy, the elevated blood estrogen level induces the proliferation of mammary epithelial cells, leading to the development of the mammary gland in preparation for lactation. The mammary epithelial cells eventually stop proliferation at late stages of pregnancy, impairment of which potentially results in breast tumorigenesis . However, the regulatory mechanisms of mammary epithelial cell proliferation during pregnancy have been unclear.