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H. pylori bacterium produces urease to neutralize gastric acid

A research team led by scientists at the Chinese University of Hong Kong is releasing study results this week showing how a bacterium, Helicobacter pylori, that causes more than half of peptic ulcers worldwide and that has been implicated in stomach cancer has managed for eons to turn the acidic environment of the human gut into one in which it can thrive.

8 Dec 2011

TAU develops tumor destruction method that also creates immunity

Even when surgical tumor removal is combined with a heavy dose of chemotherapy or radiation, there's no guarantee that the cancer will not return. Now researchers at Tel Aviv University are strengthening the odds in favor of permanent tumor destruction - and an immunity to the cancer's return - with a new method of tumor removal.

7 Dec 2011

Zalicus commences Z160 Phase 1 clinical trial for pain

Zalicus Inc. a biopharmaceutical company that discovers and develops novel treatments for patients suffering from pain and immuno-inflammatory diseases today announced the initiation of a Phase 1 clinical trial evaluating the pharmacokinetics and safety of a new formulation of Z160 (formerly NMED-160), a novel oral N-type calcium channel blocker.

5 Dec 2011

Implantable replacement cartilages hold promise for damaged knees, shoulders, ears and noses

A lab discovery is a step toward implantable replacement cartilage, holding promise for knees, shoulders, ears and noses damaged by osteoarthritis, sports injuries and accidents.

3 Dec 2011

New insight into why aminoglycoside antibiotics cause deafness

Peter Steyger's research on hearing is very personal. That's because Steyger - a research scientist with the Oregon Hearing Research Center at Oregon Health & Science University - is deaf. Now Steyger has published groundbreaking research that is as personal as it gets. The study gives scientists new insight into why a specific class of antibiotics causes deafness - the same class of antibiotics that caused Steyger's deafness as a child in England 48 years ago. The study was published this month in Scientific Reports, part of the Nature Publishing Group.

2 Dec 2011

Study reveals no clear advantage of one implant type over another

More than 270,000 Americans get hip replacement surgeries every year -- a number that is projected to double in the next decade as the population ages. With various options for implants, including metal-on-polyethylene, metal-on-metal and ceramic-on-ceramic, there have been questions about which kind works best.

1 Dec 2011

Scientists create genetically-altered neurons that light up as they fire

In a scientific first that potentially could shed new light on how signals travel in the brain, how learning alters neural pathways, and might lead to speedier drug development, scientists at Harvard have created genetically-altered neurons that light up as they fire.

30 Nov 2011

Even normal salt intake can cause hypertension in people suffering from sodium dysregulation

Hypertension is an endemic condition with far-reaching consequences. For instance, high blood pressure is the main cause of heart attacks and strokes. Other organs are also damaged by the chronic condition.

25 Nov 2011

ABCC9 gene also influences duration of sleep in humans

A collaborative European study led by LMU researchers has shown that ABCC9, a known genetic factor in heart disease and diabetes, also influences the duration of sleep in humans.

24 Nov 2011

New device safe, more effective for patients with chronic neurological conditions

Functional electrical stimulation (FES) was developed to help return lost function to patients with upper and lower extremity injuries and spinal cord injuries, among other applications. However, the devices, which work by stimulating neuronal activity in nerve-damaged patients, have a potential shortcoming in that the electrical currents needed for the treatment to work can also send errant signals to surrounding nerves, resulting in painful side effects.

22 Nov 2011

Study reveals specific functional deficit in inner ear mechanotransduction channels

National Institutes of Health-funded researchers have identified two proteins that may be the key components of the long-sought after mechanotransduction channel in the inner ear-the place where the mechanical stimulation of sound waves is transformed into electrical signals that the brain recognizes as sound.

22 Nov 2011

Gene-therapy trial to restore hearing in deaf mice

Researchers have found long-sought genes in the sensory hair cells of the inner ear that, when mutated, prevent sound waves from being converted to electric signals - a fundamental first step in hearing. The team, co-led by Jeffrey Holt, PhD, in the department of otolaryngology at Children-s Hospital Boston, and Andrew Griffith, MD, PhD, of the NIH-s National Institute on Deafness and other Communication Disorders (NIDCD), then restored these electrical signals in the sensory cells of deaf mice by introducing normal genes.

22 Nov 2011

Cisplatin anti-cancer drug binds pervasively to RNA

An anti-cancer drug used extensively in chemotherapy binds pervasively to RNA -- up to 20-fold more than it does to DNA, a surprise finding that suggests new targeting approaches might be useful, according to University of Oregon researchers.

21 Nov 2011

ChanRx to evaluate AFIB drug, vanoxerine with closed Series A funding

ChanRx is developing a superior drug for treatment of atrial fibrillation (AFIB), and has closed its Series A funding with investments from Sante Ventures and company founder, Dr. Arthur "Buzz" Brown. The company, a spin out of Cleveland-based ChanTest, will use the funding to further evaluate the safety and efficacy of its proprietary AFIB drug, vanoxerine.

21 Nov 2011

New material emits long-lasting, near-infrared glow after sunlight exposure

Materials that emit visible light after being exposed to sunlight are commonplace and can be found in everything from emergency signage to glow-in-the-dark stickers. But until now, scientists have had little success creating materials that emit light in the near-infrared range, a portion of the spectrum that only can be seen with the aid of night vision devices.

21 Nov 2011

Researchers describe how brain handles spatial resolution

Everybody knows how to zoom in and out on an online map, to get the level of resolution you need to get you where you want to go. Now researchers have discovered a key mechanism that can act like a zoom button in the brain, by controlling the resolution of the brain's internal maps.

18 Nov 2011

State roundup: Calif. cuts make public health outlook bleak

One thing Gov. Mitch Daniels believes with absolute conviction is that consumers need to pay more of the cost of their health care. ... No one can say Daniels isn't practicing what he preaches. Indiana has been using a version of consumer-driven health care for state employees since 2006. Starting next year, 90 percent of Indiana state workers will be covered by a consumer-driven plan with low premiums and high out-of-pocket expenses for actual care.

18 Nov 2011

Stent shortening and deformity can cause serious complications for patients

Some stents that keep blood vessels open to treat heart disease are poorly designed to resist shortening, according to publications in the Journal of Interventional Cardiology.

18 Nov 2011

Research shows how the bite of a small Texas snake causes extreme pain

Examining venom from a variety of poisonous snakes, a group of researchers at the University of California, San Francisco has discovered why the bite of one small black, yellow and red serpent called the Texas coral snake can be so painful.

17 Nov 2011

New computer chip models how neurons communicate with each other at synapses

For decades, scientists have dreamed of building computer systems that could replicate the human brain's talent for learning new tasks. MIT researchers have now taken a major step toward that goal by designing a computer chip that mimics how the brain's neurons adapt in response to new information. This phenomenon, known as plasticity, is believed to underlie many brain functions, including learning and memory.

16 Nov 2011