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Mechanosensitive ion channels play a key role in pain sensation

Humans and animals are able to perceive even the slightest vibration and touch of the skin. Mechanosensitive ion channels play a crucial role in the mediation of these sensations. Ion channels are pores in the cell membrane which are highly responsive to external signals.

19 Feb 2010

Poor prescription practices among doctors may increase antibiotic resistance

A new paper in the February 17th edition of the journal Molecular Cell describes how exposure to low levels of antibiotics increases mutations in E. coli and Staphylococcus bacteria hundreds of times more than normal, making the creation of drug-resistant strains more likely.

19 Feb 2010

CNRS-Institut researchers identify 'virulence factor' that inhibits host immune response

Oncogenic retroviruses are a particular family of viruses that can cause some types of cancer. Thierry Heidmann and his colleagues in the CNRS-Institut Gustave Roussy-Université Paris Sud 11 "Rétrovirus endogènes et éléments rétroïdes des eucaryotes supérieurs" Laboratory have studied these viruses. They have identified a "virulence factor" that inhibits the host immune response and allows the virus to spread throughout the body.

16 Feb 2010

SRC-3 gene sends signal to cell membrane to promote cell motility

The master gene called SRC-3 (steroid receptor coactivator 3) not only enhances estrogen-dependent growth of cancer cells by activating and encouraging the transcription of a genetic message into a protein, it also sends a signal to the cell membrane to promote cell motility or movement - a key element of cancer spread or metastasis, said Baylor College of Medicine (www.bcm.edu) researchers and collaborators in a report that appears in the current issue of the journal Molecular Cell.

15 Feb 2010

Neurotoxin study may help find new therapies to block hyperactive ion channels

There are approximately 500 species of cone snails, each producing 50 - 200 different conotoxins. A similar number of peptide toxins are produced by snakes, spiders, sea anemones, scorpions and other venomous animals. The animals use the neurotoxins to paralyze their prey.

11 Feb 2010

Study may pave way for more refined treatments for brain tumors

Researchers at Washington University School of Medicine in St. Louis have shown once again that "ready, fire, aim," nonsensical though it may sound, can be an essential approach to research.

10 Feb 2010

Study shows antiviral drugs could offer protection against HIV, Ebola, herpes and hepatitis C

The development of antibiotics gave physicians seemingly miraculous weapons against infectious disease. Effective cures for terrible afflictions like pneumonia, syphilis and tuberculosis were suddenly at hand. Moreover, many of the drugs that made them possible were versatile enough to knock out a wide range of deadly bacterial threats.

2 Feb 2010

Researchers identify antiviral small molecule that is effective against numerous viruses

Viruses are insidious creatures. They differ from each other in many ways, and they can mutate - at times seemingly at will, as with HIV - to resist a host of weapons fired at them. Complicating matters further is that new viruses are constantly emerging.

2 Feb 2010

Normal protein can be converted into prion that causes fatal brain diseases in humans

Scientists have determined how a normal protein can be converted into a prion, an infectious agent that causes fatal brain diseases in humans and mammals.

29 Jan 2010

Proteomics study reveals protein suppression makes cancers more susceptible to chemotherapy

Taxanes, a group of cancer drugs that includes paclitaxel (Taxol-) and docetaxel (Taxotere-), have become front-line therapy for a variety of metastatic cancers. But as with many chemotherapy agents, resistance can develop, a frequent problem in breast, ovarian, prostate and other cancers.

27 Jan 2010

Statins may protect SCD children from pneumococcal infection

New research suggests a family of widely used cholesterol-lowering drugs might help protect individuals from serious illness following bacterial infection, including the pneumococcal infections that pose a deadly threat to those with sickle cell disease.

20 Jan 2010

Researchers discover how cells flatten out as they adhere to internal bodily surfaces

Researchers at the University of Illinois at Chicago College of Medicine have discovered how cells in the body flatten out as they adhere to internal bodily surfaces, the first step in a wide range of important processes including clot formation, immune defense, wound healing, and the spread of cancer cells.

18 Jan 2010

Tocotrienol form of vitamin E prevents neural cell death and rescues the brain after stroke injury

Blocking the function of an enzyme in the brain with a specific kind of vitamin E can prevent nerve cells from dying after a stroke, new research suggests.

12 Jan 2010

Radiologists use new interventional NanoKnife technique to treat lung cancer

Interventional radiologists at BAPTIST HEALTH Medical Center - Little Rock recently became the first physicians in the U.S. to use a new image-guided interventional NanoKnife technique to treat a malignant nodule within the lung.

6 Jan 2010

UI cell membrane protein study may lead to new methods of tracking metastasizing cancer cells

With the discovery of a new type of chemical modification on an important muscle protein, a University of Iowa study improves understanding of certain muscular dystrophies and could potentially lead to new treatments for the conditions.

4 Jan 2010

Defects in protein-secretion machinery linked to neural tube closure

Spinal cord disorders like spina bifida arise during early development when future spinal cord cells growing in a flat layer fail to roll up into a tube. In the Dec. 6 issue of Nature Cell Biology, researchers from the Johns Hopkins University School of Medicine team with colleagues at the University of California, Berkeley to report a never-before known link between protein transport and mouse spinal cord development, a discovery that opens new doors for research on all spinal defects.

29 Dec 2009

Discovery of protein transport promotes new research on spinal defects

27 Dec 2009

Study on cyanobacteria helps understand anesthetic actions

Experiments in one of the oldest forms of life on Earth are helping to answer basic questions about how general anesthesia works, according to a study in the January issue of Anesthesia & Analgesia, official journal of the International Anesthesia Research Society (IARS).

23 Dec 2009

Human protein may help prevent H1N1 infection

Howard Hughes Medical Institute researchers have identified a naturally occurring human protein that helps prevent infection by H1N1 influenza and other viruses, including West Nile and dengue virus.

18 Dec 2009

Study explains Salmonella's infection strategy

Salmonella are highly adaptive bacteria. They can live in the presence and absence of oxygen and thus propagate in the gut. The ingestion by humans occurs mainly via contaminated egg dishes such as mayonnaise or raw milk products as well as meat or sausages. Infections with Salmonella lead to severe diarrhea and fever, particularly in patients harbouring a compromised immune system.

17 Dec 2009