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Largest genetic survey to date shows major success of giant panda breeding programs

Heroic worldwide conservation efforts have made great strides in saving China's endangered national treasure, the giant panda. Now, in China, there are over 65 giant panda reserves that have been established and three large breeding centers. But despite these efforts, just 1596 pandas remain in the wild.

Breeding programs in conservation centers and zoos hope to save the panda by improving genetic diversity, avoid inbreeding and ultimately, introduce pandas back to the wild. Just how are these high-profile programs doing so far?

The human parasite Leishmania is a probiotic for the fly that carries it

The Leishmania parasite, which causes the human disease leishmaniasis, acts as a probiotic in the insect that transmits it to humans, protecting them from bacterial disease. Findings published in the open access journal Parasites and Vectors suggest that using bacterial controls to stop the spread of leishmaniasis could sometimes have the opposite effect to that intended, by benefiting flies carrying the parasite.

Stress can make hard-working mongooses less likely to help in the future

Researchers studying banded mongooses in Uganda have discovered that those who work hard to care for pups may be less likely to invest in future offspring in the same way due to elevated stress hormones.

Dr Jennifer Sanderson, from the University of Exeter, has been observing wild banded mongooses to understand why working hard makes them less likely to work hard in the future.

New model helps explain how provisions promote or reduce wildlife disease

Athens, Ga. – Scientists have long known that providing supplemental food for wildlife, or resource provisioning, can sometimes cause more harm than good. University of Georgia ecologists have developed a new mathematical model to tease apart the processes that help explain why. Their research, which has implications for public health and wildlife conservation, appears in the Royal Society journal Biology Letters.

In asthma, it's not just what you smell, but what you think you smell

PHILADELPHIA (July 22, 2014) – New research from the Monell Center reveals that simply believing that an odor is potentially harmful can increase airway inflammation in asthmatics for at least 24 hours following exposure. The findings highlight the role that expectations can play in health-related outcomes.

Alaska frogs reach record lows in extreme temperature survival

Freezing and thawing might not be good for the average steak, but it seems to help wood frogs each fall as they prepare to survive Alaska's winter cold.

"Alaska wood frogs spend more time freezing and thawing outside than a steak does in your freezer and the frog comes back to life in the spring in better shape than the steak," said Don Larson, University of Alaska Fairbanks graduate student and lead author on a recent paper demonstrating that freeze tolerance in Alaska wood frogs is more extreme than previously thought.

Study examines presence of uterine cancers at the time of hysterectomy using morcellation

Among women undergoing a minimally invasive hysterectomy using electric power morcellation, uterine cancers were present in 27 per 10,000 women at the time of the procedure, according to a study published by JAMA. There has been concern that this procedure, in which the uterus is fragmented into smaller pieces, may result in the spread of undetected malignancies.

UI study finds potential genetic link between epilepsy and neurodegenerative disorders

A recent scientific discovery showed that mutations in prickle genes cause epilepsy, which in humans is a brain disorder characterized by repeated seizures over time. However, the mechanism responsible for generating prickle-associated seizures was unknown.

A new University of Iowa study, published online July 14 in the Proceedings of the National Academy of Sciences, reveals a novel pathway in the pathophysiology of epilepsy. UI researchers have identified the basic cellular mechanism that goes awry in prickle mutant flies, leading to the epilepsy-like seizures.

Gene variant identified as a heart disease risk factor for women

When it comes to heart disease, Dr. Ross Feldman says women are often in the dark. Historically, it was thought that heart disease was a men's-only disease, however, data has shown that post-menopausal women are just as likely as men to get heart disease and are less likely to be adequately diagnosed and treated. New research from Western University published online this week in the British Journal of Clinical Pharmacology brings to light a genetic basis for heart disease in women and helps to identify which women are more prone to heart disease.

Researchers create vaccine for dust-mite allergies

If you're allergic to dust mites (and chances are you are), help may be on the way.

Death of a parent during childhood is associated with greater mortality in early adulthood

Experiencing the loss of a parent during childhood or adolescence is associated with a greater risk of mortality, according to a study published in this week's PLOS Medicine. The study, conducted by Jiong Li and colleagues from Aarhus University in Denmark, finds that individuals who lost either a mother or a father during childhood had a greater risk of mortality in the years following the parent's death compared with people unaffected by parental death during childhood.

Distinctive developmental origin for a drainage tube in the eye

A Jackson Laboratory based research team has conducted a comprehensive exploration of an eye structure known as Schlemm's canal: a key gatekeeper for the proper flow of eye fluid, presenting a number of insights relevant to glaucoma and other diseases.

New research finds pathogenic connection between autoimmune disorders and cancer

WASHINGTON -- Autoimmune disorders may share certain pathogenic mechanisms with cancer, according to a new report by George Washington University (GW) researcher Linda Kusner, Ph.D., published in PLOS ONE on July 22.

African elephant genome suggests they are superior smellers

July 22, 2014 – Sense of smell is critical for survival in many mammals. The ability to distinguish different odors, which is important for sniffing out food, avoiding predators, and finding mates, depends on the number and type olfactory receptors found in an organism's genome. In a study published today in Genome Research, researchers examined the olfactory receptor (OR) repertoire encoded in 13 mammalian species and found that African elephants have the largest number of OR genes ever characterized; more than twice that found in dogs, and five times more than in humans.

High-salt diet doubles threat of cardiovascular disease in people with diabetes

Washington, DC -- People with Type 2 diabetes who eat a diet high in salt face twice the risk of developing cardiovascular disease as those who consume less sodium, according to a new study published in the Endocrine Society's Journal of Clinical Endocrinology & Metabolism.

Diabetes occurs when there is too much sugar in the bloodstream. People develop Type 2 diabetes when their bodies become resistant to the hormone insulin, which carries sugar from the blood to cells.