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Platelet-like nanoparticles nearly double survival rate after internal injury

Nanoparticles tailored to latch onto blood platelets rapidly create healthy clots and nearly double the survival rate in the vital first hour after injury, new research shows.

21 Aug 2012

Muscle synergies activated in altered ways after stroke

The simple act of picking up a pencil requires the coordination of dozens of muscles: The eyes and head must turn toward the object as the hand reaches forward and the fingers grasp it. To make this job more manageable, the brain's motor cortex has implemented a system of shortcuts. Instead of controlling each muscle independently, the cortex is believed to activate muscles in groups, known as "muscle synergies." These synergies can be combined in different ways to achieve a wide range of movements.

21 Aug 2012

Dogs offer excellent animal model for human obsessive compulsive disorder study

The genetics research group, based at the University of Helsinki and the Folkh-lsan Research Center and led by Professor Hannes Lohi, has in collaboration with an international group of researchers investigated the characteristics and environmental factors associated with compulsive tail chasing in dogs.

21 Aug 2012

Study utilizes integrative approach to probe biology of bipolar disorder

The more that we understand the brain, the more complex it becomes. The same can be said about the genetics and neurobiology of psychiatric disorders. For "Mendelian" disorders, like Huntington disease, mutation of a single gene predictably produces a single clinical disorder, following relatively simple genetic principals. Compared to Mendelian disorders, understanding bipolar disorder has been extremely challenging. Its biology is not well understood and its genetics are complex.

21 Aug 2012

High-definition fiber tractography shows white matter tracts in living brain

A technique called high-definition fiber tractography (HDFT) provides a powerful new tool for tracing the course of nerve fiber connections within the brain—with the potential to improve the accuracy of neurosurgical planning and to advance scientific understanding of the brain's structural and functional networks, reports a paper in the August issue of Neurosurgery, official journal of the Congress of Neurological Surgeons.

21 Aug 2012

Thiabendazole drug slows tumor growth and shows promise as chemotherapy for cancer

An inexpensive antifungal drug, thiabendazole, slows tumor growth and shows promise as a chemotherapy for cancer. Scientists in the College of Natural Sciences at The University of Texas at Austin made this discovery by exploiting the evolutionary relatedness of yeast, frogs, mice and humans.

21 Aug 2012

Researchers reveal possible drug targets to combat anthrax

A trawl of the genome of the deadly bacterium Bacillus anthracis has revealed a clutch of targets for new drugs to combat an epidemic of anthrax or a biological weapons attack.

21 Aug 2012

Semen protein acts on the female brain to prompt ovulation

An international team of scientists led by Gregg Adams at the University of Saskatchewan has discovered that a protein in semen acts on the female brain to prompt ovulation, and is the same molecule that regulates the growth, maintenance, and survival of nerve cells.

21 Aug 2012

Lack of certain gene occurs in almost 28% of breast cancers

More than one out of every four cases of breast cancer is associated with a specific, missing gene - a finding that could have significant implications for chemotherapy treatments, according a recent study by Cornell University researchers.

20 Aug 2012

Agilent awarded patent for comparative genomic hybridization methods

Agilent Technologies Inc. today announced that it was awarded a significant patent for comparative genomic hybridization methods. CGH methods help researchers study genetics and cancer in both basic and clinical research.

20 Aug 2012

PPR proteins recognise RNA targets via easy-to-understand code

The code determines the recognition of RNA molecules by a superfamily of RNA-binding proteins called pentatricopeptide repeat (PPR) proteins.

20 Aug 2012

Protein toxic to nerve cells in AD also contributes to memory loss

The underlying causes of Alzheimer's disease are not fully understood, but a good deal of evidence points to the accumulation of β-amyloid, a protein that's toxic to nerve cells. β-amyloid is formed by the activity of several enzymes, including one called BACE1. Most Alzheimer's disease patients have elevated levels of BACE1, which in turn leads to more brain-damaging β-amyloid protein.

20 Aug 2012

Resveratrol might help improve mobility and prevent life-threatening falls among older people

In a stride toward better health in later life, scientists reported today that resveratrol, the so-called "miracle molecule" found in red wine, might help improve mobility and prevent life-threatening falls among older people.

20 Aug 2012

New birth-control strategy for mosquitoes can combat malaria

Using information about the unique mating practices of the male malaria mosquito ― which, unlike any other insect, inserts a plug to seal its sperm inside the female ― scientists are zeroing in on a birth-control drug for Anopheles mosquitoes, deadly carriers of the disease that threatens 3 billion people, has infected more than 215 million and kills 655,000 annually.

20 Aug 2012

Scientists demonstrate automated worm sorter for biological research

Research into the genetic factors behind certain disease mechanisms, illness progression and response to new drugs is frequently carried out using tiny multi-cellular animals such as nematodes, fruit flies or zebra fish.

20 Aug 2012

ACS National Meeting & Exposition focuses on DNA wires and their potential use in identifying diseases

In a discovery that defies the popular meaning of the word "wire," scientists have found that Mother Nature uses DNA as a wire to detect the constantly occurring genetic damage and mistakes that ― if left unrepaired ― can result in diseases like cancer and underpin the physical and mental decline of aging.

20 Aug 2012

UCP2 uncoupling protein occurs mainly in cells of the immune system

When uncoupling proteins are active, mitochondria produce heat instead of ATP. This may be useful under certain circumstances, such as when an animal is hibernating. But non-hibernating animals also have them. Particularly poorly understood is the uncoupling protein UCP2. Elena Pohl and colleagues at the University of Veterinary Medicine, Vienna, show that the protein occurs mainly in cells of the immune system.

18 Aug 2012

New book on malaria tells story of Plasmodium falciparum Genome Project

Few infectious diseases can rival malaria's ability to kill and cripple. Each year the disease causes hundreds of millions of people to be sickened and more than a million - mostly African children under the age of five - die.

18 Aug 2012

Pulvinar regulates communication between clusters of brain cells

A mysterious region deep in the human brain could be where we sort through the onslaught of stimuli from the outside world and focus on the information most important to our behavior and survival, Princeton University researchers have found.

18 Aug 2012

Study demonstrates how Elesclomol blocks oxidative phosphorylation in melanoma

A laboratory study led by UNC medical oncologist Stergios Moschos, MD, demonstrates how a new targeted drug, Elesclomol, blocks oxidative phosphorylation, which appears to play essential role in melanoma that has not been well-understood. Elesclomol (Synta Pharmaceuticals, Lexington, MA) was previously shown to have clinical benefit only in patients with normal serum lactate dehydrogenase (LDH), a laboratory test routinely used to assess activity of disease.

18 Aug 2012