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Holey nanoparticles create new tumor imaging and therapeutic agent

Using a polymer that has both water-soluble and water-insoluble regions, a team of investigators from the Siteman Center of Cancer Nanotechnology Excellence has created a nanoparticle shaped like a bialy, a close relative of the bagel. Combining this nanoparticle with manganese, a metal that boosts magnetic resonance imaging signals, and an antibody that targets blood vessels, the investigators then created a new type of imaging agent that also has the potential to deliver drugs to tumors.

9 Jul 2008

Nanocantilevers image nanoparticles in cells

Borrowing from a Nobel Prize-winning technique credited with starting the nanotechnology revolution, a team of researchers from Oak Ridge National Laboratory (ORNL) and Northwestern University's Nanomaterials for Cancer Diagnostics and Therapeutics has developed a method for imaging nanoparticles inside of cells.

9 Jul 2008

Liver protein fetuin-A linked to type 2 diabetes in seniors

The presence of a protein expressed by the liver which inhibits insulin action may identify individuals more likely to develop type 2 diabetes, according to a new study led by a researcher from the UCSD School of Medicine, to be published July 9 in the Journal of the American Medical Association.

9 Jul 2008

Smart nanoparticle bomb precisely targets a tumour's blood vessels

A team of researchers in the U.S. have developed a nanoparticle with the ability to precisely deliver cancer-fighting drugs.

9 Jul 2008

Water overdose proves to be a killer

A British man who drank 17 pints of cold water in eight hours, five times the recommended daily amount, in order to relieve a painful gum condition has died as a result.

9 Jul 2008

New understanding of how malaria parasite survives in and totally changes red blood cells

A new study-done on a scale an order of magnitude greater than anything previously attempted in the field of malaria-has uncovered an arsenal of proteins produced by the malaria parasite that allows it to hijack and remodel human red blood cells, leaving the oxygen-carrying cells stiff and sticky.

8 Jul 2008

Protein found in immune cells may be a reliable marker for schizophrenia risk

Schizophrenia is a severe and complex psychiatric illness that affects about 1% of the population. Diagnosis currently relies on subjective clinical interviews and the assessment of ambiguous symptoms, which frequently leads to delayed diagnosis and treatment. As such, biomarkers that would indicate schizophrenia risk or onset would be extremely useful.

8 Jul 2008

Increased potassium/sodium in diet may decrease risk of hypertension, coronary heart disease and stroke

A new article indicates that an increased intake in minerals such as potassium, and possibly magnesium and calcium by dietary means may reduce the risk of high blood pressure and decrease blood pressure in people with hypertension. A high intake of these minerals in the diet may also reduce the risk of coronary heart disease and stroke.

8 Jul 2008

Specific gene may make women more susceptible to alcoholism

A particular gene variant might make women more susceptible to alcoholism. At least, a study carried out by the Universities of Bonn and Sweden's Karolinska Institute makes this a plausible conclusion.

8 Jul 2008

Transgenic tomatoes as edible vaccine carriers for Alzheimer's disease

The humble tomato could be a suitable carrier for an oral vaccine against Alzheimer's disease, according to HyunSoon Kim from the Korea Research Institute of Bioscience and Biotechnology (KRIBB) in Korea and colleagues from Digital Biotech Inc. and the Department of Biological Science at Wonkwang University.

8 Jul 2008

Farm-raised tilapia fish contains potentially dangerous fatty acid combination

"Farm-raised tilapia, one of the most highly consumed fish in America, has very low levels of beneficial omega-3 fatty acids and, perhaps worse, very high levels of omega-6 fatty acids, according to new research from Wake Forest University School of Medicine.

8 Jul 2008

UV light therapy is as beneficial for darker skin as lighter skin

An analysis of more than 100 patients has confirmed for the first time that darker-skinned patients benefit as those with lighter skin when given light therapy for morphea and related diseases, UT Southwestern Medical Center researchers show.

8 Jul 2008

Lowering blood pressure reduces the risk of dementia

New research suggests that lowering blood pressure in older people could reduce their chances of dementia by 13%.

8 Jul 2008

Sumatriptan/naproxen sodium drug combo taken early relieves migraine symptoms

A combination drug taken within an hour after the start of a migraine is effective in relieving symptoms, according to research published in the July 8, 2008, issue of Neurology, the medical journal of the American Academy of Neurology.

8 Jul 2008

Pregnancy increases risk of acute myocardial infarction

Although acute myocardial infarction (AMI) is rare in women of child-bearing age, pregnancy can increase a woman's risk of heart attack 3- to 4-fold, according to a study published in the July 15, 2008, issue of the Journal of the American College of Cardiology.

8 Jul 2008

Male cyclists risk sexual problems if they don't choose the right bike

Men who take up cycling in an effort to stay fit, do their bit for the environment or avoid spiralling motoring costs, could be harming their health if they don't choose the right bicycle.

8 Jul 2008

Keeping a food diary doubles diet weight loss

Keeping a food diary can double a person's weight loss according to a study from Kaiser Permanente's Center for Health Research. The findings, from one of the largest and longest running weight loss maintenance trials ever conducted, will be published in the August issue of the American Journal of Preventive Medicine.

8 Jul 2008