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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

Computer simulations shed light on dynamic structure of major target for anti-cancer drugs

Using advanced computer simulations, University of Utah College of Pharmacy researchers have produced moving images of a protein complex that is an important target for anti-cancer drugs.

18 Aug 2012

Increasing blood levels of particular proteins may act as warning signs for IgA nephropathy

Increasing blood levels of particular proteins may act as warning signs for patients with one of the most common diseases of the kidney, according to a study appearing in an upcoming issue of the Journal of the American Society of Nephrology (JASN).

17 Aug 2012

Pyruvate kinase M2 fuels tumor growth by influencing H3 histone protein

A metabolic protein that nourishes cancer cells also activates tumor-promoting genes by loosening part of the packaging that entwines DNA to make up chromosomes, a team led by scientists at The University of Texas MD Anderson Cancer Center reports in the Aug. 16 issue of Cell.

17 Aug 2012

Dendritic cells protect against MS in mouse model

In multiple sclerosis, the immune system attacks nerves in the brain and spinal cord, causing movement problems, muscle weakness and loss of vision. Immune cells called dendritic cells, which were previously thought to contribute to the onset and development of multiple sclerosis, actually protect against the disease in a mouse model, according to a study published by Cell Press in the August issue of the journal Immunity.

17 Aug 2012

Peptide combinations might offer more effective cancer therapy

Two studies suggest that two peptide agents used either together or individually with a low-dose of a standard chemotherapy drug might offer more effective cancer therapy than current standard single-drug treatments.

17 Aug 2012

Damage to the ventromedial prefrontal cortex increases credulity

Everyone knows the adage: "If something sounds too good to be true, then it probably is." Why, then, do some people fall for scams and why are older folks especially prone to being duped? An answer, it seems, is because a specific area of the brain has deteriorated or is damaged, according to researchers at the University of Iowa.

17 Aug 2012

Researchers develop multi-dimensional MRI method to assess age in children

A national team of researchers led by investigators at the University of California, San Diego School of Medicine have developed a multidimensional set of brain measurements that, when taken together, can accurately assess a child's age with 92 percent accuracy.

17 Aug 2012

Study helps explain how large DNA viruses undergo rapid evolution

Scientists have discovered that poxviruses, which are responsible for smallpox and other diseases, can adapt to defeat different host antiviral defenses by quickly and temporarily producing multiple copies of a gene that helps the viruses to counter host immunity.

17 Aug 2012

New DNA sequencing tests improve ability to analyze genetic disorders

Scientists at the University of Medicine and Dentistry of New Jersey-New Jersey Medical School (UMDNJ-NJMS) have developed new DNA sequencing tests that hold significant promise for decreasing costs associated with diagnosing cancer and hereditary diseases, including cysticfibrosis.

17 Aug 2012

Curcumin shows promise in fighting devastating viruses

The popular spice turmeric packs more than just flavor - it shows promise in fighting devastating viruses, Mason researchers recently discovered.

17 Aug 2012

Pan-fried red meat associated with increased risk of advanced prostate cancer

Research from the University of Southern California (USC) and Cancer Prevention Institute of California (CPIC) found that cooking red meats at high temperatures, especially pan-fried red meats, may increase the risk of advanced prostate cancer by as much as 40 percent.

17 Aug 2012