Body

Study finds germ-killing power in the eyes

Berkeley — When it comes to germ-busting power, the eyes have it, according to a discovery by University of California, Berkeley, researchers that could lead to new, inexpensive antimicrobial drugs.

New CU-Boulder study clarifies diversity, distribution of cutthroat trout in Colorado

A novel genetic study led by the University of Colorado Boulder has helped to clarify the native diversity and distribution of cutthroat trout in Colorado, including the past and present haunts of the federally endangered greenback cutthroat trout.

In birds' development, researchers find diversity by the peck

Cambridge, Mass. - September 24, 2012 - It has long been known that diversity of form and function in birds' specialized beaks is abundant. Charles Darwin famously studied the finches on the Galapagos Islands, tying the morphology (shape) of various species' beaks to the types of seeds they ate. In 2010, a team of Harvard biologists and applied mathematicians showed that Darwin's finches all actually shared the same developmental pathways, using the same gene products, controlling just size and curvature, to create 14 very different beaks.

Scientific discovery offers 'green' solution in fight against greenhouse gases

A low-cost new material that could lead to innovative technologies to tackle global warming has been discovered by scientists at The University of Nottingham.

AIDS patients face risk for esophageal, stomach cancers

People with AIDS are at increased risk for developing esophageal and stomach carcinoma as well as non-Hodgkin lymphomas (NHLs), according to a new study in Gastroenterology, the official journal of the American Gastroenterological Association.

Eunuchs outlive other men

Castrated men living in Korea centuries ago outlived other men by a significant margin. The findings, reported in the September 25 issue of Current Biology, a Cell Press publication, suggest that male sex hormones are responsible for shortening the lives of men, the researchers say.

The evidence comes after careful study of genealogy records of noble members of the Imperial court of the Korean Chosun dynasty (AD 1392-1910).

JCI early table of contents for September 24, 2012

Small proteins in the cornea protect against bacterial infection

Small proteins in the cornea protect against bacterial infection

Exposed tissue surfaces, including skin and mucous membranes, are under constant threat of attack by microorganisms in the environment. The layer of cells that line these areas, known as epithelial cells, are the first line of defense against these pathogens, but the underlying molecular mechanisms that allow them to repel microbes are unknown.

Heritability of avoidant and dependent personality disorder traits

A new twin study from the Norwegian Institute of Public Health shows that the heritability of avoidant and dependent personality disorder traits might be higher than previously reported. People with avoidant personality disorder are often anxious in the company of others, while people with dependent personality disorder feel more secure.

Newly discovered molecule could deliver drugs to treat diseases

MANHATTAN, Kan. -- Kansas State University researchers have discovered a molecule that may be capable of delivering drugs inside the body to treat diseases.

For the first time, researchers have designed and created a membrane-bounded vesicle formed entirely of peptides -- molecules made up of amino acids, the building blocks of protein. The membrane could serve as a new drug delivery system to safely treat cancer and neurodegenerative diseases.

Gas outlets off Spitsbergen are no new phenomenon

Frequent storms and sub-zero temperatures – nature drove the marine researchers that were assessing gas outlets on the sea bed off the coast of Spitsbergen for four and a half weeks to their limits. Nevertheless the participants were very pleased when they returned: "We were able to gather many samples and data in the affected area. With the submersible JAGO we even managed to form an impression of the sea bed and the gas vents" summarised the chief scientist Professor Dr. Christian Berndt from GEOMAR | Helmholtz Centre for Ocean Research Kiel.

New back pain gene identified in largest genetic study of its kind

Researchers at King's College London have for the first time identified a gene linked to age-related degeneration of the intervertebral discs in the spine, a common cause of lower back pain.

Red king or red queen

Cellular eavesdropping made easy

It is much harder to keep up with a conversation in a crowded bar than in a quiet little café, but scientists wishing to eavesdrop on cells can now do so over the laboratory equivalent of a noisy room. A new method devised by scientists at the European Molecular Biology Laboratory (EMBL) in collaboration with the German Cancer Research Centre (DKFZ), both in Heidelberg, Germany, provides a new approach for studying the proteins cells release to communicate with each other, react to changes, or even to help them move.

New IVF breakthrough

Researchers at the University of Gothenburg have discovered that a chemical can trigger the maturation of small eggs to healthy, mature eggs, a process that could give more women the chance of successful IVF treatment in the future. The results have been published in the revered journal PloS ONE.

Women and girls treated for cancer with radiotherapy and chemotherapy are often unable to have children as their eggs die as a result of the treatment.