Body

Kinetochores prefer the 'silent' DNA sections of the chromosome

Hot springs microbe yields record-breaking, heat-tolerant enzyme

Bioprospectors from the University of California, Berkeley, and the University of Maryland School of Medicine have found a microbe in a Nevada hot spring that happily eats plant material – cellulose – at temperatures near the boiling point of water.

In fact, the microbe's cellulose-digesting enzyme, called a cellulase, is most active at a record 109 degrees Celsius (228 degrees Fahrenheit), significantly above the 100oC (212oF) boiling point of water.

Those aching joints could be in your genes

Tel Aviv — A common complaint, back pain is one of the many side effects of aging. Over three quarters of the population experience it at some point, and until now, researchers have had little conclusive proof of the causes and mechanisms of the pain.

High folate intake may reduce risk of colorectal cancer

Intake of high levels of folate may reduce colorectal cancer risk, according to a new study in Gastroenterology, the official journal of the American Gastroenterological Association (AGA) Institute. Folate is a water-soluble B vitamin that occurs naturally in food.

Not all tests are created equal: Identifying C. diff in hospital labs

PROVIDENCE, R.I. – A study from the microbiology lab at the Lifespan hospitals has found that some lab tests are much more accurate in identifying Clostridium difficile Toxin (C. diff) infection (CDI), which causes diarrhea. The findings indicate that a molecular method detects up to 50 percent more cases of C. diff than other methods. While molecular technology is more expensive, it allows for more cases to be identified and assists in patient safety efforts within the hospital in terms of preventing hospital-acquired C. diff infections.

Research bolsters importance of horseshoe crab spawning for migrating shorebirds

LAUREL, Md. – Speculation that the welfare of a small, at-risk shorebird is directly tied to horseshoe crab populations is in part supported by new scientific research, according to a U.S. Geological Survey- led study published this week in Ecosphere, a journal of the Ecological Society of America.

New UGA technology makes textiles permanently germ-free; targets health care-associated infections

A University of Georgia researcher has invented a new technology that can inexpensively render medical linens and clothing, face masks, paper towels—and yes, even diapers, intimate apparel and athletic wear, including smelly socks—permanently germ-free.

The simple and inexpensive anti-microbial technology works on natural and synthetic materials. The technology can be applied during the manufacturing process or at home, and it doesn't come out in the wash. Unlike other anti-microbial technologies, repeated applications are unnecessary to maintain effectiveness.

New methods allow for insights into molecular mechanisms of regeneration

Researchers of the Berlin Institute for Medical Systems Biology (BIMSB) at the Max Delbrück Center for Molecular Medicine (MDC) Berlin-Buch have gained new insights into planarian flatworms, which are an attractive model for stem cell biology and regeneration. Close collaboration between four laboratories at the BIMSB led by Stefan Kempa, Christoph Dieterich, Nikolaus Rajewsky and Wei Chen has led to the identification of thousands of gene products, many of which are expressed and are important in stem cell function.

Singapore expertise pioneers quick and scarless surgery

Patients with gastric tumours in their stomach will no longer have to suffer an eight-hour long surgery, but instead can look forward to a short day surgery which last a few minutes to an hour without the need for hospitalisation.

This new procedure – the world's first flexible endoscopy robotic surgery in the stomach – was successfully performed on patients suffering from gastric tumours in India.

The procedure was performed on a total of three patients, one patient per day from 1 to 3 July.

Radiation rates for breast cancer may be underestimated, U-M study finds

ANN ARBOR, Mich. — More breast cancer patients than previously believed may be receiving radiation treatments after breast-conserving surgery, a University of Michigan Comprehensive Cancer Center study shows.

Researchers looked at a key database often used to assess whether cancer patients receive appropriate care and found that it may not always be adequately capturing whether breast cancer patients undergo radiation treatments.

Could ovarian stimulation cause an increase in chromosome copy number abnormalities?

Researchers involved in ESHRE's polar body screening study (launched in 2009) will tell the annual conference of the European Society of Human Reproduction and Embryology today (Monday) that results from the study are leading to a new understanding about how such abnormalities are developing, and they believe that the ovarian stimulation a woman receives might be playing a part. Understanding the mechanisms involved could help older women who are trying to have a healthy baby with their own oocytes.

Gene secrets of the reef revealed

Australian scientists today announced they have sequenced the genome of the staghorn coral Acropora millepora, a major component of the Great Barrier Reef and coral reefs worldwide.

This is the first animal genome project to be carried out entirely in Australia, and is an important milestone in Australian biotechnology and in the study of coral reefs, said the researchers from the ARC Centre of Excellence for Coral Reef Studies and the Australian Genome Research Facility (AGRF).

Scientists sequence DNA of cancer-resistant rodent

The naked mole-rat is native to the deserts of East Africa and has unique physical traits that allow it to survive in harsh environments for many years. It has a lack of pain sensation in its skin and has a low metabolic rate that allows it to live underground with limited oxygen supply.

Embedding microchips in ornamental shrubs

PISA, ITALY—Radiofrequency Identification (RFID), or microchip technology, has been used for years in animal identification systems and is now being tested for use in plants. Researchers note that microchip techniques have varied applications for plants. The technology can be used to help guide visitors through parks and botanical gardens, to thwart theft of valuable plants, and to aid scientists and growers in monitoring plant health.

The forces of attraction: How cells change direction

Many cell types in higher organisms are capable of implementing directed motion in response to the presence of certain chemical attractants in their vicinity. A team led by Dr. Doris Heinrich of the Faculty of Physics and the Center for NanoScience (CeNS) at Ludwig-Maximilians-Universität (LMU) in Munich has developed a novel technique to expose an ensemble of living cells to rapidly varying concentrations of chemoattractants.