Body

AUSTIN, Texas – Despite notable improvements in educational levels and opportunity during the past three decades, disadvantages associated with race still persist in Brazil, according to new research at The University of Texas at Austin.

Although educational advantages for white over black and pardo (mixed-race) adolescents declined considerably in Brazil, the gap is still significant, with whites completing nearly one year more of education.

In 2005, news first broke that researchers in Scotland found unexpectedly low rates of cancer among diabetics taking metformin, a drug commonly prescribed to patients with Type II diabetes. Many follow-up studies reported similar findings, some suggesting as much as a 50-per-cent reduction in risk.

How could this anti-diabetic drug reduce the risk of developing cancer and what were the mechanisms involved?

SALT LAKE CITY – Researchers from the University of Utah have identified a process by which the most common types of urinary tract infection-causing bacteria are able to trigger bladder cell shedding and disable immune responses. According to this new study, published in the Jan. 19, 2012, issue of Cell Host & Microbe, α-hemolysin, a toxin secreted by many strains of Escherichia coli (E. coli), may play an important, unexpected role during both the establishment and persistence of urinary tract infections.

The discovery by researchers from the Walter and Eliza Hall Institute of a molecule that is key to malaria's 'invisibility cloak' will help to better understand how the parasite causes disease and escapes from the defenses mounted by the immune system.

The research team, led by Professor Alan Cowman from the institute's Infection and Immunity division, has identified one of the crucial molecules that instructs the parasite to employ its invisibility cloak to hide from the immune system, and helps its offspring to remember how to 'make' the cloak.

Troy, N.Y. – Even the tiniest microscopic organisms make waves when they swim. In fact, dealing with these waves is a fact of life for the ulcer-causing bacteria H. pylori.

The bacteria are known to change their behavior in order to compensate for the waves created by other bacteria swimming around in the same aquatic neighborhood. From the relatively simple actions of these individual bacteria emerges a complex, coordinated group behavior.

NEW YORK (January 18, 2012) – The Wildlife Conservation Society, in conjunction with the Cambodian Fisheries Administration and Wildlife Reserves Singapore, announced today the successful release of a Southern River terrapin (Batagur affinis) – one of the most endangered turtles on earth – into the Sre Ambel River in Cambodia.

The turtle was released on Monday, January 16th at a ceremony attended by officials, conservationists, and local people.

If you are unhappy at work, it could be partly due to your boss' management style, according to a new study by Dr. Nicolas Gillet, from the Université François Rabelais in Tours in France, and his team. Both over-controlling managers who use threats as a way to motivate employees, and organizations that do not appear to value individuals' contributions, frustrate our basic needs for autonomy, competence, and relatedness (how we relate to others). This, in turn, is likely to have a negative impact on our well-being at work.

Medications or biologic agents that target T-cells, white blood cells involved in the body's immune system, appear to offer significant benefit to patients suffering from psoriatic arthritis (PsA), a type of arthritis that affects up to 48 percent of patients with the skin disease psoriasis, according to a new review article in the Journal of the American Academy of Orthopaedic Surgeons (JAAOS). About 7.5 million Americans – roughly 2.2 percent of the population – have psoriasis, an autoimmune disease that causes red, flaky skin.

A natural substance obtained from seeds of the "miracle tree" could purify and clarify water inexpensively and sustainably in the developing world, where more than 1 billion people lack access to clean drinking water, scientists report. Research on the potential of a sustainable water-treatment process requiring only tree seeds and sand appears in ACS' journal Langmuir.

Oseltamivir. Esomeprazole. Trastuzumab. Where do drugs get those odd-sounding generic names? The answers are in the current issue of Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society, the world's largest scientific society, which explains the logic behind the tongue-twisters.

Stress can make you fat – and being obese can create stress. A new hypothesis seeks to explain how.

Diet and lack of exercise are not sufficient to explain the worldwide rise in obesity. Stress is one of many other factors which could contribute, according to human biologist Brynjar Foss from the University of Stavanger.

Eating more food high in fat, salt and sugar, combined with reduced physical activity, has been highlighted by the World Health Organisation (WHO) as the key causes of obesity.

Scientists are reporting development of contact lenses that could provide a continuous supply of anesthetic medication to the eyes of patients who undergo laser eye surgery — an advance that could relieve patients of the burden of repeatedly placing drops of medicine into their eyes every few hours for several days. Their report appears in ACS' journal Langmuir.

In a first-of-its-kind study, scientists are reporting that the indoor air in offices is an important source of worker exposure to potentially toxic substances released by carpeting, furniture, paint and other items. Their report, which documents a link between levels of these so-called polyfluorinated compounds (PFCs) in office air and in the blood of workers, appears in ACS' journal Environmental Science & Technology.

Scientists have cracked the genetic code and predicted some high priority drug targets for the blood parasite Schistosoma haematobium, which is linked to bladder cancer and HIV/ AIDS and causes the insidious urogenital disease schistosomiasis haematobia in more than 112 million people in Africa.

Schistomiasis is recognised by the World Health Organization as one of the most socioeconomically devastating diseases, besides malaria, and is in urgent need of extensive research and improved control.

Scientists from the Florida campus of The Scripps Research Institute have identified a compound that can help repair a specific type of defect in RNA, a type of genetic material. The methods in the new study could accelerate the development of therapeutics to treat a variety of incurable diseases such as Huntington's disease, Spinocerebellar ataxia, and Kennedy disease.