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Golden nanotubes detect tumor cells, map sentinel lymph nodes

Biomedical researchers at the University of Arkansas in Fayetteville and the University of Arkansas for Medical Sciences (UAMS) in Little Rock have developed a special contrast-imaging agent made of gold-coated carbon nanotubes that is capable of molecular mapping of lymphatic endothelial cells and detecting cancer metastasis in sentinel lymph nodes.

23 Sep 2009

Titanium dioxide nanoparticles catalyze brain tumor death

Scientists from the U.S. Department of Energy's (DOE) Argonne National Laboratory and the University of Chicago Medical Center's Brain Tumor Center have developed a way to target brain cancer cells using inorganic titanium dioxide nanoparticles bonded to antibodies.

23 Sep 2009

Magnetic nanoworms and nanocrystals deliver siRNA to tumors

Small pieces of nucleic acid known as short interfering RNAs, or siRNAs, can turn off the production of specific proteins, a property that makes them one of the more promising new classes of anticancer drugs in development. Indeed, at least two siRNA-based anticancer therapies, both delivered to tumors in nanoparticles, have begun human clinical trials.

23 Sep 2009

ImmunoCellular Therapeutics completes humanization of its ICT-37 and ICT-109 antibody candidates

ImmunoCellular Therapeutics, Ltd. (OTCBB: IMUC), a clinical-stage biotechnology company that is developing immune based therapies for the treatment of brain and other cancers, announced today that it has completed humanization of ICT-37 and ICT-109.

23 Sep 2009

Interleukin Genetics reports positive results from clinical study on weight management

Interleukin Genetics, Inc. (NYSE Amex: ILI) announced today top-line positive results from a retrospective clinical study on weight management using patients who participated in a diet study previously reported in the Journal of the American Medical Association.

23 Sep 2009

Utah medical ethics expert chairs NIH review of embryonic cells

University of Utah medical ethics expert Jeffrey R. Botkin will chair a federal panel that will review scientists' requests to conduct government-funded research using embryonic stem cells left over from couples who used "test-tube fertilization" to have babies.

23 Sep 2009

Advanced Hair Studio to introduce genetic baldness tests in Australia

Men and women in Australia now have access to genetic tests for predicting the risk of male or female hair loss thanks to a distribution agreement announced today by pharmacogenomics research and development innovator PharmaGenoma, Inc. and its subsidiary HairDX, LLC. (www.hairdx.com)

23 Sep 2009

Drugs blocking the effects of ACh may prevent cancer

By seeing what substances and molecules affect the development of our diseases, we can develop drugs that prevent or cure diseases. In her dissertation at Kalmar University in Sweden, Ann Novotny has found that the signal molecule acetylcholine (ACh) is important for the progress of cancer of the large intestine and colon, knowledge that is important to factor in when developing drugs that block the effects of Ach on tumor cells.

23 Sep 2009

Research reveals balancing act between sugar-coated nanoparticles

A research team at the National Institute of Standards and Technology (NIST) studying sugar-coated nanoparticles for use as a possible cancer therapy has uncovered a delicate balancing act that makes the particles more effective than conventional thinking says they should be. Just like individuals in a crowd respecting other people's personal space, the particles work because they get close together, but not too close.

23 Sep 2009

Celera and Medco collaborate in KIF6 gene variant testing

Celera Corporation (NASDAQ:CRA) and Medco Health Solutions, Inc. (NYSE:MHS), today announced that they have entered into a research collaboration to evaluate whether testing for a gene variant called KIF6 increases patient adherence with statin therapy. Current studies have suggested that only about 50 to 60 percent of the patients who receive a prescription for a lipid-lowering drug are taking the medication after six months.

23 Sep 2009

Declining performance of muscles linked to harmful byproducts of air we breathe

If you think the air outside is polluted, a new research report in the September 2009 issue of the journal Genetics (http://www.genetics.org) might make you to think twice about the air inside our bodies too. That's because researchers show how about 3 percent of the air we breathe gets converted into harmful superoxides, which ultimately harm our muscles.

23 Sep 2009

Integration of local motion signals allows for a larger global pattern motion

Researchers have long known of the brain's ability to learn based on visual motion input, and a recent study has uncovered more insight into where the learning occurs. The brain first perceives changes in visual input (local motion) in the primary visual cortex. The local motion signals are then integrated in the later visual processing stages and interpreted as global motion in the higher-level processes.

22 Sep 2009

Winners of the 2009 Biotechnology Vision Summit's Emerging Company Showcase announced

Six Wisconsin biotechnology companies have been selected the winners of the first Emerging Company Showcase. The showcase is part of the Biotechnology Vision Summit 2009, being held on Wednesday, Oct. 7, at the Madison Marriott West in Madison, Wis. The summit and the showcase are being hosted by BioForward, the member-driven state association that is the voice of Wisconsin’s biotechnology industry.

22 Sep 2009

Molecule responsible for neuronal branches identifed

The human brain consists of about 100 billion (1011) neurons, which altogether form about 100 trillion (1014) synaptic connections with each other. A crucial mechanism for the generation of this complex wiring pattern is the formation of neuronal branches. The neurobiologists Dr. Hannes Schmidt and Professor Fritz G. Rathjen at the Max Delbr-ck Center for Molecular Medicine (MDC) Berlin-Buch, Germany, have now discovered a molecule that regulates this vital process. At the same time they have succeeded in elucidating the signaling cascade induced by this molecule (PNAS, Early Edition, 2009, doi:10.1073).

22 Sep 2009

Antigen to block infection by genetically-diverse strains of HIV

Scientists working to develop a vaccine for the human immunodeficiency virus (HIV) report they have created the first antigen that induces protective antibodies capable of blocking infection of human cells by genetically-diverse strains of HIV. The new antigen differs from previously-tested vaccines by virtue of its chemically-activated property that enables close sharing of electrons and produces strong covalent bonding.

22 Sep 2009

Research to study how eukaryotic cells help in building proteins

Federal stimulus funding is helping a Kansas State University biologist continue to collaborate with the Harvard Medical School. Their research is creating a clearer picture of a certain cellular process that can play a role in chronic diseases like cancer.

22 Sep 2009

Tregs to set the pace of recovery after serious lung injury

After more than 50 experiments in mice, medical scientists at Johns Hopkins have mapped out the basic steps taken by a particular set of white blood cells in setting the pace of recovery after serious lung injury.

22 Sep 2009

Blood vessels around the brain now converted into production/delivery systems

The blood brain barrier is generally considered an obstacle to delivering therapies from the bloodstream to the brain. However, University of Iowa researchers have discovered a way to turn the blood vessels surrounding brain cells into a production and delivery system for getting therapeutic molecules directly into brain cells.

22 Sep 2009

UC professor argues on stem cell properties

Before it was learned that matter burns by taking up oxygen, most chemists sought to explain combustion as the release of a mysterious substance, which they named "phlogiston". Phlogiston theory was a conceptual breakthrough that helped chemists conduct experiments and share ideas. Only when it came to pinning down the distinctive physical properties of phlogiston did it become clear that no such thing exists.

22 Sep 2009

Study on mice reveals that short term stress can prevent cancer

Researchers at the Stanford University School of Medicine have shown that, at least in laboratory mice, bouts of relatively short-term stress can boost the immune system and protect against one type of cancer. Furthermore, the beneficial effects of this occasional angst seem to last for weeks after the stressful situation has ended. The finding is surprising because chronic stress has the opposite effect -- taxing the immune system and increasing susceptibility to disease.

22 Sep 2009