Body

Cleverly designed vaccine blocks H5 avian influenza in models

WASHINGTON, DC – March 25, 2013 – Until now most experimental vaccines against the highly lethal H5N1 avian influenza virus have lacked effectiveness. But a new vaccine has proven highly effective against the virus when tested in both mice and ferrets. It is also effective against the H9 subtype of avian influenza. The research is published online ahead of print in the Journal of Virology.

How common is 'The John Next Door'?

Los Angeles, CA (March 25, 2012) While the media is replete with examples of "normal" men who seek out prostitutes regularly, how common are prostitute-seeking men and how much do they differ from men in the normal population? According to a new comparison study by Dr. Martin A. Monto, University of Portland, and Dr. Christine Milrod, only about 14% of men across the U.S. have ever paid for sex in their lives and only 1% of those men had done so in the previous year.

Peculiar parasitoid wasp found on rare sawfly developing in ferns

A mysterious parasitoid wasp was found in the Böhmerwald (Northeast Austria) and reared in the garden of the amateur entomologist Ewald Altenhofer of Gross Gerungs municipality, Austria. The parasitoid was identified by Kees van Achterberg, senior researcher at the Naturalis Biodiversity Center in Leiden, the Netherlands, as the rare Seleucus cuneiformis. It is the first time that a tip of its biology was discovered.

New lung cancer study takes page from Google's playbook

SAN DIEGO - The same sort of mathematical model used to predict which websites people are most apt to visit is now showing promise in helping map how lung cancer spreads in the human body, according to a new study published in the journal Cancer Research.

Reversing blood and freshening it up

The blood of young and old people differs. In an article published recently in the scientific journal Blood, a research group at Lund University in Sweden explain how they have succeeded in rejuvenating the blood of mice by reversing, or re-programming, the stem cells that produce blood.

Stem cells form the origin of all the cells in the body and can divide an unlimited number of times. When stem cells divide, one cell remains a stem cell and the other matures into the type of cell needed by the body, for example a blood cell.*

Research: Women over 40 still need effective contraception

Women reaching the age of 40 tend to be less vigilant about birth control because they think the risk of pregnancy is low – or that birth control can cause health problems - but a review of the evidence by a team that includes a Women & Infants Hospital of Rhode Island physician recently underscored the need to be vigilant about contraception even in perimenopause.

The genomes of peregrine and saker falcons throw lights on evolution of a predatory lifestyle

March 25, 2013, Shenzhen, China - In a collaborative study published online in Nature Genetics, researchers from Cardiff University, BGI, International Wildlife Consultants, Ltd., and Abu Dhabi Falcon Hospital, have completed the genome sequencing and analysis of two iconic falcons, the peregrine (Falco peregrinus) and saker (Falco cherrug). The work provides an invaluable resource for the deep understanding of the adaptive evolution in raptors and the genetic basis of their wide distribution.

Detecting circulating tumor cells

About 1 in 4 deaths in the United States are due to cancer, but primary tumors are rarely fatal. Instead, it's when tumors metastasize that cancer becomes so deadly. To help patients and physicians make treatment decisions, teams of researchers have been working on various methods to detect cancer's spread – via the bloodstream – before secondary tumors develop. Now, one team reports a nearly perfect method for separating breast cancer cells from blood.

Sequencing tracks animal-to-human transmission of bacterial pathogens

HEIDELBERG, 25 March 2013 – Researchers have used whole genome sequencing to reveal if drug-resistant bacteria are transmitted from animals to humans in two disease outbreaks that occurred on different farms in Denmark. The results, which are published today in EMBO Molecular Medicine, confirm animal-to-human transmission of methicillin-resistant Staphylococcus aureus (MRSA), a disease-causing bacterium that carries the recently described mecC gene. The mecC gene is responsible for resistance to the penicillin-like antibiotic methicillin.

Feeling sick makes us less social online too

When it comes to posting on social media, there are few areas of our lives that are off limits.

We post about eating, working, playing, hunting, quilting – you name it. Just about everything is up for public consumption … except our health.

A new study from BYU finds that while most of us go online regularly for help in diagnosing health issues, very few of us actually post information, questions or experiences on health topics.

46 gene sequencing test for cancer patients on the NHS

The first multi-gene DNA sequencing test that can help predict cancer patients' responses to treatment has been launched in the National Health Service (NHS), thanks to a partnership between scientists at the University of Oxford and Oxford University Hospitals NHS Trust.

The test uses the latest DNA sequencing techniques to detect mutations across 46 genes that may be driving cancer growth in patients with solid tumours. The presence of a mutation in a gene can potentially determine which treatment a patient should receive.

Global scientific experts convene in Cape Town to report on progress toward tuberculosis vaccines

CAPE TOWN – 25 March 2013 – At a time of growing global concern about the rising level of drug-resistant strains of tuberculosis in South Africa and worldwide, the world's top TB vaccine experts are meeting this week, the first time this scientific forum has been held in Africa, where they will present new research aimed at advancing development of vaccines against the deadly airborne disease.

Genetic alterations linked with bladder cancer risk, recurrence, progression, and patient survival

A new analysis has found that genetic alterations in a particular cellular pathway are linked with bladder cancer risk, recurrence, disease progression, and patient survival. Published early online in CANCER, a peer- reviewed journal of the American Cancer Society, the findings could help improve bladder cancer screening and treatment.

New urgency in battle against 'bound legs' disease

The harm done by konzo – a disease overshadowed by the war and drought it tends to accompany – goes beyond its devastating physical effects to impair children's memory, problem solving and other cognitive functions.

Even children without physical symptoms of konzo appear to lose cognitive ability when exposed to the toxin that causes the disease, researchers report in the journal Pediatrics.

Losing wetlands to grow crops

Getting enough to eat is a basic human need – but at what cost to the environment? Research published in BioMed Central's journal Agriculture & Food Security demonstrates that as their crops on higher ground fail due to unreliable rainfall, people in countries like Uganda are increasingly relocating to wetland areas. Unless the needs of these people are addressed in a more sustainable way, overuse of wetland resources through farming, fishing, and hunting will continue.