The frequent occurrence of same-sex behaviors in beetles of one sex could be explained by genes that are favored by natural selection when expressed in the opposite sex, according to a study published in the open access journal BMC Evolutionary Biology.

The study by researchers from Uppsala University, Sweden sheds new light on same-sex sexual behavior in the animal kingdom through examination of the seed beetle, Callosobruchus maculatus, a common beetle found in bean stores across the world.

• Syncytin-1 gene is result of a viral infection of our primate ancestors

Protein helps embryos implant in the womb

Discovery is crucial for many stressful pregnancy complications

Scientists at the University of Sheffield have identified a protein, involved in the development of the human placenta, may also help embryos implant in the womb - something which could improve treatments for recurrent miscarriages and pre-eclampsia.

The pioneering study shows that a protein called Syncytin-1, which was the result of a viral infection of our primate ancestors 25 million years ago, is first secreted on the surface of a developing embryo even before it implants in the womb.

(Boston)--With opioid addiction and prescription drug abuse considered one of the biggest public health threats of our time in the U.S., many are asking why so many Americans are struggling with addiction to illegal drugs and prescription medications. New research suggests that chronic pain may be part of the answer.

In a study that appears in the May issue of the Journal of General Internal Medicine, researchers at Boston University School of Medicine and Boston Medical Center have found that the majority of patients misusing drugs and alcohol have chronic pain and many are using these substances to "self-medicate" their pain.

More than half of the streamflow in the Upper Colorado River Basin originates as groundwater, according to a new U.S. Geological Survey study published today in the journal Water Resources Research.

With the move from burning coal to natural gas and low-sulfur coal and an increase in the use of scrubbers, only about 25 percent as much atmospheric sulfur is available today, compared to 40 years ago.

Sulfur balances in agricultural fields are now negative, with more removed each year in crop harvests and leaching than is added from fertilizers and deposition.

Bethesda, MD (May 9, 2016) -- About 1.8 million Americans have celiac disease, an immune-based condition brought on by the consumption of gluten in genetically susceptible patients. Among patients diagnosed with celiac disease by small intestinal biopsy in the U.S., those from the Punjab region of India have the highest rates of disease, according to new research published in Clinical Gastroenterology and Hepatology,1 the official clinical practice journal of the American Gastroenterological Association.

Today’s emergence of nano-micro hybrid structures with almost biological complexity is of fundamental interest. Our ability to adapt intelligently to the challenges has ramifications all the way from fundamentally changing research itself, over applications critical to future survival, to posing small and medium as well as truly globally existential dangers.

Several times a year I find myself exiting the Florida’s Turnpike at Yeehaw Junction and heading south.  When I get to the small town of Okeechobee I take a left and head down Route 98 through Florida’s extensive agricultural backyard.  Flanked by Lake Okeechobee on the west and the affluent cities of the Atlantic coast off to the east, the small towns nestled in this sliver of land support vibrant production of sweet corn, cattle, lettuce, and sugarcane. Cane-derived sugar ends up in many cupboards as table sugar, and also is found in many consumer products.  

By now we are all used to seeing its more or less successful results on Italian and international celebrities, but in fact the market of Botox-based procedures (cosmetic treatments that exploit the effects of type A botulin toxin) involves a large number of individuals. Just to give an idea, about 250,ooo procedures were done in Italy in 2014. It is therefore natural to wonder about the possible side effects of this practice. One fairly unpredictable consequence concerns the emotional domain, and in particular the perception of emotional information and facial expressions.

Researchers from the University of Chicago have shown that inhibiting autophagy, a self-devouring process used by cells to degrade large intra-cellular cargo, effectively blocks tumor cell migration and breast cancer metastasis in tumor models. In a study, published May 12, 2016, in the journal Cell Reports, they demonstrate that the process is essential for tumor metastasis and describe the mechanisms that connect autophagy to cell migration.