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Loss of a universal tRNA feature

Scientists at the Virginia Bioinformatics Institute (VBI) report in the Journal of Bacteriology that two alphaproteobacteria lack the universal extra guanylate nucleotide typically found in the transfer RNA molecule tRNAHis.

7 Feb 2007

Scientists discover how T-cell leukemia viruses evade defense mechanisms

National Cancer Institute (NCI) scientists have discovered how human T-cell leukemia virus type 1 (HTLV-1), which infects about 20 million people worldwide, evades being held in check by one of the body's natural defense mechanisms.

6 Feb 2007

Power-boosting signal in muscle declines with age

As people age, they may have to exercise even harder to get the benefits afforded to younger folk. That's the suggestion of a report in the February issue of the journal Cell Metabolism, showing that a signal that gives muscles a kind of metabolic boost in response to exercise is blunted in older animals.

6 Feb 2007

New understanding of blood pressure gene could lead to new treatments

Research by scientists at UCL (University College London) has clearly demonstrated for the first time the structure and function of a gene crucial to the regulation of blood pressure. The discovery could be important in the search for new treatments for illnesses such as heart disease, the UK's biggest killer.

5 Feb 2007

Common painkiller helps against child cancer

Neuroblastoma is a form of cancer that develops in the nervous system and it affects small children more commonly than any other tumour type.

5 Feb 2007

Antipodean Pharma commences phase 2 trial in hepatitis C

Antipodean Pharmaceuticals has announced it has initiated a Phase 2 clinical trial of its lead compound MitoQ (mitoquinone) to investigate the drug's efficacy to reduce liver damage in patients with raised liver enzymes associated with the Hepatitis C virus (HCV).

5 Feb 2007

UK scientists reverse symptoms of mad cow disease

The researchers at University College, London, believe they have found a way to treat the disease in humans as long as it is detected before it has done harm to a large number of brain cells.

1 Feb 2007

Calpain-mediated mGluR1-alpha truncation

Tricking a key enzyme can soothe over-excited receptors in the brain, say neuroscientists, calling this a possible strategy against stroke, Alzheimer's and other neurodegenerative diseases.

31 Jan 2007

Garlic offers hope in cystic fibrosis infection

Garlic has been hailed a wonder drug for centuries and has been used to prevent gangrene, treat high blood pressure, ward off common colds and is even believed by some to have cancer-fighting properties.

31 Jan 2007

Cruelty-free ELISA for human insulin

In the January issue of Clinical Biochemistry, scientists and physicians with the Physicians Committee for Responsible Medicine (PCRM) outline the method used to develop a cruelty-free ELISA for human insulin that uses monoclonal antibodies produced by cells cultured in an animal-serum-free medium.

30 Jan 2007

Virtual human metabolic network for medical science

Bioengineering researchers at UC San Diego have painstakingly assembled a virtual human metabolic network that will give researchers a new way to hunt for better treatments for hundreds of human metabolic disorders, from diabetes to high levels of cholesterol in the blood.

30 Jan 2007

New understanding of cholera pathogen

Researchers at Rensselaer Polytechnic Institute have discovered new details about how bacteria generate energy to live. In two recently published papers, the scientists add key specifics to the molecular mechanism behind the pathogen that causes cholera.

29 Jan 2007

Second-generation dendrimer disintegrates upon command

Dendrimers, highly branched, spherical polymers, have demonstrated their utility as drug and imaging agent delivery vehicles for use in detecting and treating cancer, with several dendrimer-based agents nearing human clinical trials.

29 Jan 2007

Minor mistake in protein production at the cellular level may lead to serious neurological diseases

But exactly how the cell avoids such mistakes has remained unclear until now. Researchers at Ohio State University found the mechanism that prevents such errors, and explain their findings in the Proceedings of the National Academy of Sciences.

28 Jan 2007

Brown seaweed may provide protective ingredient against skin cancers

Substances extracted from a marine seaweed may protect against skin cancer caused by too much sun, new research suggests.

28 Jan 2007

Disorderly protein brings order to cell division

The secret to the ability of a molecule critical for cell division to throw off the protein yoke that restrains its activity is the yoke itself a disorderly molecule that seems to have a mind of its own, say investigators at St. Jude Children's Research Hospital, Innsbruck Medical University and Max Planck Institute.

28 Jan 2007

Scientists find surprising way of switching off a gene involved in cell division

Scientists at the University of Oxford have identified a surprising way of switching off a gene involved in cell division.

22 Jan 2007

Dendrimer-based targeted delivery of an apoptotic sensor in cancer cells

Taking a critical step toward the development of a multifunctional nanoscale anticancer agent that can detect cancer, treat it, and then report on the success or failure of that treatment, investigators at the University of Michigan have developed a nanoscale sensor of cell death.

22 Jan 2007

Nanoparticles yield delivery tools for therapeutic nucleic acids

Cancer researchers hold great hope that nucleic acid-based therapeutics, such as anticancer genes, antisense oligonucleotides, and small interfering RNA (siRNA) molecules, will prove to be powerful antitumor agents.

16 Jan 2007

Lung neutrophils produce histamine in significant quantities

In a surprise finding, scientists have discovered that histamine, the inflammatory compound released during allergic reactions that causes runny nose, watery eyes, and wheezing, can be produced in large amounts in the lung by neutrophils, the white blood cells that are the major component of pus.

14 Jan 2007