An analysis of emergency department surveys looked for risk and protective factors among teenagers who report dating violence and alcohol use. Patients ages 14 to 20 that came to the  University of Michigan Injury Center emergency department seeking care were asked to complete a survey on alcohol use, peers, mental health and dating violence. 

From those survey results, 842 male and female patients reported alcohol misuse, of which nearly 1 in 4 reported past-year dating violence, defined as being either a victim or perpetrator of physical acts such as throwing something, slapping, pulling hair, pushing, shoving, kicking, hitting or punching. 

The scholars analyzed individual factors such as:

• alcohol use

People who have social power are strongly influenced by internal body cues stemming from their motor system when making judgments about preferences of paintings, objects, movements or letter sequences, according to a new paper in the Journal of Experimental Psychology: General which looked at how the easiness of high power individuals' motor actions impacted their judgments.

Mesoamerican Nephropathy, a mysterious kidney disease that has killed over 20,000 people in Central America, most of them sugar cane workers, may be caused by chronic, severe dehydration linked to global climate change, according to a new study by Richard J. Johnson, MD, of the University of Colorado Anschutz Medical Campus.

The Mesoamerican Nephropathy epidemic was first described in 2002. It's most prevalent among manual laborers on sugar cane plantations in the hotter, lower altitudes of Central America's Pacific coast. The disease has also been reported among farmworkers, miners, fishermen and construction and transportation workers in the region.

In the kidney, injured cells can be kicked into reparative mode by a gene called Sox9, according to a new paper.  Sox9 also plays a key role in the normal development of the kidney and the authors found that surviving injured cells switch on the Sox9 gene as a response to kidney damage.

This regenerates the injured cellular lining of the nephron, the functional unit of the kidney, and repairs the kidney after acute kidney injury (AKI).  

By recruiting the majority of the surviving cells of the epithelium to aid in the timely repair of a severely injured organ, the kidney's Sox9 strategy contrasts with the stem cell-based repair strategy of many other organ systems.

Women who undergo implant based female sterilization have a significantly heightened risk of reoperation following complications, suggests a large study published in The BMJ this week.

Female sterilization is one of the most common contraception methods worldwide. Laparoscopic sterilization has been the primary method for decades. It is a surgical procedure that clips, stitches or burns the fallopian tubes to prevent pregnancy.

Hysteroscopic sterilization was developed more recently and involves implanting the "Essure" device to block the fallopian tubes. It does not require general anaesthetic or surgery unlike laparoscopic sterilization.

The likelihood of a transgender person attempting suicide is very high and a new study examined factors that may prevent them. Its conclusions also inform medical and mental health professionals who work with transgender clients. 

For a survey of "suicide protective factors" among transgender adults, the scholars recruited 133 transgender individuals living in Canada, ranging in age from 18 to 75, who responded to questions through an online, anonymous survey about their thoughts on and attempts at suicide. Nearly 45 percent of respondents said they had had a suicide plan at least once in their lives; 26 percent indicated they had attempted suicide at least once. The majority of the study participants indicated they experienced suicidal thoughts.