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Researchers turn inanimate silicone and living cardiac muscle cells into a jellyfish

Using recent advances in marine biomechanics, materials science, and tissue engineering, a team of researchers at Harvard University and the California Institute of Technology (Caltech) have turned inanimate silicone and living cardiac muscle cells into a freely swimming "jellyfish."

23 Jul 2012

Body rids itself of excess copper through urine: New study

Scientists have long known that the body rids itself of excess copper and various other minerals by collecting them in the liver and excreting them through the liver's bile. However, a new study led by Johns Hopkins researchers and published June 22 in PLoS One suggests that when this route is impaired there's another exit route just for copper: A molecule sequesters only that mineral and routes it from the body through urine.

14 Jul 2012

UCLA to examine whether copper surfaces result in reduced hospital infection rates

Hospital-acquired infections are a huge public health burden, and hospital environments play a key role in harboring potentially deadly bacteria such as E. coli, C. difficile and methicillin-resistant Staphylococcus aureus.

10 Jul 2012

Study shows how cisplatin prevents clumping of hSOD1 linked to ALS

A long-used anti-cancer drug could be a starting point to develop new treatments for the incurable nerve disease known as Lou Gehrig's disease or amyotrophic lateral sclerosis (ALS), scientists are reporting.

14 Jun 2012

Oxidative stress burdens obstructive sleep apnea patients

Obstructive sleep apnea may be associated with increased oxidative burden, say researchers.

8 Jun 2012

Inexpensive paper-based device warns about unhealthy levels of airborne metals

Scientists are reporting development of a new paper-based device that can warn workers that they are being exposed to potentially unhealthy levels of airborne metals almost immediately, instead of the weeks required with current technology. The report on the device, which costs about one cent to make and could prevent illness in the millions of people who work with metal, appears in ACS' journal Analytical Chemistry.

1 Jun 2012

Silver nanoparticles have high affinity for E. coli bacteria

Porous ceramic water filters are often coated with colloidal silver, which prevents the growth of microbes trapped in the micro- and nano-scale pores of the filter. Other metals such as copper and zinc have also been shown to exhibit anti-microbial activity.

25 May 2012

IUDs and implants effectively reduce risk of unintended pregnancy

A study to evaluate birth control methods has found dramatic differences in their effectiveness. Women who used birth control pills, the patch or vaginal ring were 20 times more likely to have an unintended pregnancy than those who used longer-acting forms such as an intrauterine device (IUD) or implant.

24 May 2012

“Sandwich” immunoassay used to search for new chemical reactions

Many discoveries are made by chance, but it is also possible to help it along: The chance of finding something interesting increases when the number of experiments rises. French researchers have now applied this principle to the search for new chemical reactions. In the journal Angewandte Chemie, they have introduced a new concept based on antibodies and a “sandwich” immunoassay.

22 May 2012

Eating pistachios may help alter levels of beneficial bacteria in the gut

A preliminary 16-person study suggests that eating pistachios may help alter levels of potentially beneficial bacteria in the gut, a finding that holds promise for supporting digestive health. The research, presented as an abstract this week at the Experimental Biology conference, is the first study of pistachios and almonds and their modulating role on the gut microbiota composition.

25 Apr 2012

Cadmium exposure can cause progression of aggressive breast cancer

Studies by researchers at Dominican University of California show that breast cancer cells become increasingly aggressive the longer they are exposed to small concentrations of cadmium, a heavy metal commonly found in cosmetics, food, water and air particles.

24 Apr 2012

Eating rice helps improve diet and manage weight

Eating white or brown rice helps improve diet and manage weight and other risk factors for disease, according to results from a study presented today at the Experimental Biology 2012 conference, in San Diego, CA.

23 Apr 2012

Biologists decipher novel functions of metal-binding molecule nicotianamine

In order to survive, plants should take up neither too many nor too few minerals from the soil. New insights into how they operate this critical balance have now been published by biologists at the Ruhr-Universit-t in a series of three papers in the journal The Plant Cell. The researchers discovered novel functions of the metal-binding molecule nicotianamine.

16 Apr 2012

Reducing iron levels in blood plasma may protect brain from changes related to AD

Alzheimer's disease (AD) is now the sixth leading cause of death among Americans, affecting nearly 1 in 8 people over the age of 65. There is currently no treatment that alters the course of this disease. However, an increasing amount of evidence suggests that changes in the way the body handles iron and other metals like copper and zinc may start years before the onset of AD symptoms. A new study shows that reducing iron levels in blood plasma may protect the brain from changes related to AD.

11 Apr 2012

CovalentMedical makes Focus MaculaPro available to general public

Focus MaculaPro is a leading macular health vitamin in the United States and is sold in more retina specialists' offices than any other eye vitamin on the market. Focus MaculaPro up until now has only been available to patients through their retina specialist. Now, however, Covalent Medical has made Focus MaculaPro available to the general public.

3 Apr 2012

Starfruit-shaped nanorods for medical imaging, chemical sensing

They look like fruit, and indeed the nanoscale stars of new research at Rice University have tasty implications for medical imaging and chemical sensing.

28 Mar 2012

New solid state NMR method can help visualize structure of proteins

A new method to reveal the structure of proteins could help researchers understand biological molecules - both those involved in causing disease and those performing critical functions in healthy cells.

20 Mar 2012

Researchers describe preparation of chitosan nanoparticles

Nanoparticles containing chitosan have been shown to have effective antimicrobial activity against Staphylococcus saprophyticus and Escherichia coli. The materials could be used as a protective wound-healing material to avoid opportunistic infection as well as working to facilitate wound healing.

17 Mar 2012

Earlier start of micronutrient supplementation better for pregnant women and the unborn child

When pregnant women take supplements with micronutrients (vitamins and minerals), the growth of their unborn child improves. The improvement is cumulative, so researchers from the Antwerp Institute of Tropical Medicine report : the earlier in pregnancy the supplementation starts, the better. In developing countries, where women often have a poor diet, these supplements really make a difference.

14 Mar 2012

Even low-dose nanoparticles could have big impact on long-term health

Nanoparticles are everywhere. From cosmetics and clothes, to soda and snacks. But as versatile as they are, nanoparticles also have a downside, say researchers at Binghamton University and Cornell University in a recent paper published in the journal Nature Nanotechnology. These tiny particles, even in low doses, could have a big impact on our long-term health.

9 Mar 2012