PRESS-NEWS.org - Press Release Distribution
PRESS RELEASES DISTRIBUTION

Tiny chameleons discovered in Madagascar

2012-02-16
(Press-News.org) Four new species of miniaturized lizards have been identified in Madagascar. These lizards, just tens of millimeters from head to tail and in some cases small enough to stand on the head of a match, rank among the smallest reptiles in the world. The full report can be found in the Feb. 15 issue of the open access journal PLoS ONE.

The researchers, led by Frank Glaw of the Zoological State Collection of Munich in Germany, also conducted a genetic analysis to determine that the mini lizards, though similar in appearance, are in fact distinct species. The smallest of the new species, Brookesia micra, was found only on a very small islet called Nosy Hara, and the authors suggest that this species may represent an extreme case of island dwarfism.

"The extreme miniaturization of these dwarf reptiles might be accompanied by numerous specializations of the bodyplan, and this constitutes a promising field for future research." says Frank Glaw. "But most urgent is to focus conservation efforts on these and other microendemic species in Madagascar which are heavily threatened by deforestation."

INFORMATION:

Citation: Glaw F, Ko¨ hler J, Townsend TM, Vences M (2012) Rivaling the World's Smallest Reptiles: Discovery of Miniaturized and Microendemic New Species of Leaf Chameleons (Brookesia) from Northern Madagascar. PLoS ONE 7(2): e31314. doi:10.1371/journal.pone.0031314

Financial Disclosure: The field work for this research has been supported by the Volkswagen Foundation and the European Association of Zoos and Aquaria. Lab work received funding by the Deutsche Forschungsgemeinschaft (grant VE247/3-1). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

Competing Interest Statement: The authors have declared that no competing interests exist.

END



ELSE PRESS RELEASES FROM THIS DATE:

Study shows that urinary mercury is not correlated with autism

2012-02-16
A recent study finds no statistically significant correlation between urinary mercury levels and autism, according to a Feb. 15 report in the open access journal PLoS ONE. There has been some concern that mercury may play a role in autism development. To investigate one aspect of this link, Barry Wright of North Yorkshire and York Primary Care Trust led a team of researchers in a study of 56 children with autism spectrum disorders, and mainstream, special school and sibling controls. The team found that the group with autism did not have elevated or reduced levels of ...

Organic farming improves pollination success in strawberries

2012-02-16
Organic farms produce strawberries with fewer malformations and a higher proportion of fully pollinated berries relative to conventional forms, according to a Feb. 15 report in the open access journal PLoS ONE. The study, led by Georg Andersson of Lund University in Sweden, investigated the effect of organic farming compared to conventional. They found that the pollination success increased greatly with organic farming, and speculate that this effect may be due to an increase in insect pollinator abundance and/or diversity. They also determined that this effect was apparent ...

Mutations in gigantic gene responsible for common heart muscle disease

2012-02-16
BOSTON, MA—Mutations in TTN—the largest gene in the human genome—cause idiopathic (unknown cause) dilated cardiomyopathy (DCM), a common form of heart failure, according to a study by Brigham and Women's Hospital (BWH) researchers. The TTN gene encodes a protein that functions as a scaffold for assembly of contractile proteins in muscle cells and also regulates the production of force in cardiac muscle cells. Because of its enormous size, the TTN gene was, until recently, too difficult to sequence and analyze in large numbers of patients. But with the development of ...

Smoking cessation aide shows promise as alcoholism treatment

2012-02-16
A medication commonly used to help people stop smoking may have an unanticipated positive side effect for an entirely different vice: drinking alcohol. A new study by University of Chicago researchers finds that varenicline, sold as Chantix, increases the negative effects of alcohol and therefore could hold promise as a treatment for alcoholism. A group of heavy-to-moderate social drinkers given a single dose varenicline three hours before an alcoholic beverage reported increased dysphoria and reduced "liking," even when researchers controlled for the effects of nausea ...

New drugs show promise for preventing 'absence seizures' in children: UBC research

2012-02-16
A team led by a University of British Columbia professor has developed a new class of drugs that completely suppress absence seizures – a brief, sudden loss of consciousness – in rats, and which are now being tested in humans. Absence seizures, also known as "petit mal seizures," are a symptom of epilepsy, most commonly experienced by children. During such episodes, the person looks awake but dazed. The seizures, arising from a flurry of high-frequency signals put out by the neurons of the thalamus, can be dangerous if they occur while a person is swimming or driving, ...

Goat kids can develop accents

2012-02-16
The ability to change vocal sounds (vocal plasticity) and develop an accent is potentially far more widespread in mammals than previously believed, according to new research on goats from Queen Mary, University of London. Vocal plasticity is the ability of an individual to modify the sound of their voice according to their social environment. Humans benefit from an extreme form of vocal plasticity which allows us to produce a wide range of sounds and accents, but in most other mammals (except, for example, bats and whales) vocalisations were thought to be genetically ...

Owning a dog encourages exercise in pregnant women

2012-02-16
The study of more than 11,000 pregnant women, in partnership with Mars Petcare, showed that those who owned dogs were approximately 50% more likely to achieve the recommended 30 minutes of exercise a day through high levels of brisk walking than those without dogs. Scientists suggest that as it is a low-risk exercise, walking a dog could form part of a broader strategy to improve the health of pregnant women. Previous studies have shown that maternal obesity and large weight gain during pregnancy has adverse outcomes for mother and child. Studies show, for example, that ...

National trial shows autoinjectors faster, more effective than IV lines in stopping seizures

2012-02-16
CINCINNATI -- As part of the first national, randomized clinical trial to study two methods of drug delivery for seizing patients, researchers have shown that using an auto-injector, similar to an EpiPen, to deliver anticonvulsant medication stops prolonged seizures more quickly and effectively than drug delivery through an IV line. The research, which will be published in the Feb. 16 edition of the New England Journal of Medicine, was conducted as part of the Rapid Anticonvulsant Medication Prior to Arrival Trial (RAMPART), which included University of Cincinnati (UC) ...

Finnish research organisation VTT combines mobile phone technology and microscopy

2012-02-16
VTT Technical Research Centre of Finland, the leading multi-technological applied research organisation in Northern Europe, has developed an optical accessory that turns an ordinary camera phone into a high-resolution microscope. The device is accurate to one hundredth of a millimetre. Among those who will benefit from the device are the printing industry, consumers, the security business, and even health care professionals. A new Finnish enterprise called KeepLoop Oy and VTT are already exploring the commercial potential of the invention. The first industrial applications ...

Genetic mutation implicated in 'broken' heart

2012-02-16
BOSTON, MA (February 15, 2012) — For decades, researchers have sought a genetic explanation for idiopathic dilated cardiomyopathy (DCM), a weakening and enlargement of the heart that puts an estimated 1.6 million Americans at risk of heart failure each year. Because idiopathic DCM occurs as a familial disorder, researchers have long searched for genetic causes, but for most patients the etiology for their heart disease remained unknown. Now, new work from the lab of Christine Seidman, a Howard Hughes Investigator and the Thomas W. Smith Professor of Medicine and Genetics ...

LAST 30 PRESS RELEASES:

Singapore scientists discover lung cancer's "bodyguard system" - and how to disarm it

Bacteria use wrapping flagella to tunnel through microscopic passages

New critique prompts correction of high-profile Yellowstone aspen study, highlighting challenges in measuring ecosystem response to wolf reintroduction

Stroke survivors miss critical treatment, face greater disability due to systemic transfer delays

Delayed stroke care linked to increased disability risk

Long term use of anti-acid drugs may not increase stomach cancer risk

Non-monetary 'honor-based' incentives linked to increased blood donations

Natural ovulation as effective as hormones before IVF embryo transfer

Major clinical trial provides definitive evidence of impacts of steroid treatment on severe brain infection

Low vitamin D levels shown to raise risk of hospitalization with potentially fatal respiratory tract infections by 33%

Diagnoses of major conditions failing to recover since the pandemic

Scientists solve 66 million-year-old mystery of how Earth’s greenhouse age ended

Red light therapy shows promise for protecting football players’ brains

Trees — not grass and other greenery — associated with lower heart disease risk in cities

Chemical Insights scientist receives Achievement Award from the Society of Toxicology

Breakthrough organic crystalline material repairs itself in extreme cold temperatures, unlocking new possibilities for space and deep-sea technologies

Scientists discover novel immune ‘traffic controller’ hijacked by virus

When tropical oceans were oxygen oases

Positive interactions dominate among marine microbes, six-year study reveals

Safeguarding the Winter Olympics-Paralympics against climate change

Most would recommend RSV immunizations for older and pregnant people

Donated blood has a shelf life. A new test tracks how it's aging

Stroke during pregnancy, postpartum associated with more illness, job status later

American Meteorological Society announces new executive director

People with “binge-watching addiction” are more likely to be lonely

Wild potato follows a path to domestication in the American Southwest

General climate advocacy ad campaign received more public engagement compared to more-tailored ad campaign promoting sustainable fashion

Medical LLMs may show real-world potential in identifying individuals with major depressive disorder using WhatsApp voice note recordings

Early translational study supports the role of high-dose inhaled nitric oxide as a potential antimicrobial therapy

AI can predict preemies’ path, Stanford Medicine-led study shows

[Press-News.org] Tiny chameleons discovered in Madagascar