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Gene silencer and quantum dots reduce protein production to a whisper

More than 15 years ago, scientists discovered a way to stop a particular gene in its tracks. The Nobel Prize-winning finding holds tantalizing promise for medical science, but so far it has been difficult to apply the technique, known as RNA interference, in living cells.

9 Jul 2008

Genetic change in dopamine transporter supports a role for dopamine signaling in ADHD

A genetic change in the dopamine transporter - one of the brain's dopamine-handling proteins - makes it behave as if amphetamine is present and "run backward," Vanderbilt University Medical Center investigators report this week in The Journal of Neuroscience.

9 Jul 2008

Diabetes effects sperm quality

Diabetes in men has a direct effect on fertility, a scientist told the 24th annual conference of the European Society of Human Reproduction and Embryology today (Wednesday 9 July).

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

Study shows H5N1 virus is adapting each time it infects a human

Scientists have discovered how bird flu adapts in patients, offering a new way to monitor the disease and prevent a pandemic, according to research published in the August issue of the Journal of General Virology.

8 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

Stem Cell Sciences granted UK patent for new growth medium for authentic embryonic stem cells

Stem Cell Sciences plc today announced that the UK Patent Office has granted it a patent covering the Company's new range of stem cell culture media. The new Culticell iSTEM range uses the inhibitor based technology discovered by Professor Austin Smith and recently published in Nature (vol. 453, pp.519-523).

8 Jul 2008

IVF does not lead to developmental problems in early infancy

Couples who need IVF in order to become pregnant can be reassured that this will not lead to developmental problems in early infancy, a Dutch researcher told the 24th annual conference of the European Society of Human Reproduction and Embryology.

8 Jul 2008

Samaritan Pharmaceuticals granted IND from FDA for HIV drug

Samaritan Pharmaceuticals has announced that it has filed an IND (Investigational New Drug) application for SP-6310 in the treatment of HIV-infected patients with abnormal cortisol levels.

8 Jul 2008

Lost viruses may contribute to AIDS

Weak HIV viruses piggyback onto stronger ones, raising the possibility that the human body may harbor many more HIV viruses capable of replicating and contributing to the development of AIDS than previously thought, according to research published in BioMed Central's open access journal, Retrovirology.

8 Jul 2008

Natural substance Argyrin shows promise for new cancer therapies

The effective treatment of many forms of cancer continues to pose a major problem for medicine. Many tumours fail to respond to standard forms of chemotherapy or become resistant to the medication.

8 Jul 2008

FDA approves novel genetic test for patients with breast cancer

The U.S. Food and Drug Administration has approved a novel genetic test for determining whether patients with breast cancer are good candidates for treatment with the drug Herceptin (trastuzumab).

8 Jul 2008

Researchers detail types of genes necessary for brain

Researchers from Harvard Medical School and Brandeis University have successfully completed a full-genome RNAi screen in neurons, showing what types of genes are necessary for brain development. Details of the screen and its novel methodology are published July 4th in the open-access journal PLoS Genetics.

8 Jul 2008

A paradigm shift for targeted cancer therapy

We already know that recycling benefits our planet; and now new research suggests that the cellular version might be useful for battling cancer.

8 Jul 2008

Japanese encephalitis damages the brain in two ways

Japanese encephalitis (JE), commonly known as brain fever, is one of the prevalent mosquito-borne encephalitis in India and entire South East (SE) Asia.

8 Jul 2008

Novel ways to boost vaccination or natural defenses

Our bodies rely on the production of potent, or 'high affinity', antibodies to fight infection. The process is very complex, yet Sydney scientists have discovered that it hinges on a single molecule, a growth factor, without which it cannot function.

8 Jul 2008

Compound in red wine may prevent breast cancer

Red wine, or rather the natural compound resveratrol found in the red grapes used to make the wine, is in the news again for all the right reasons.

8 Jul 2008

Discovery of new function for an old enzyme in sialidosis

The lack of a single protein usually thought of as a run-of-the-mill enzyme that helps to recycle molecules in cells causes an incurable and often fatal disease of children, according to St. Jude Children's Research Hospital investigators.

7 Jul 2008

Discovery of molecule that kills kidney cancer cells

Kidney cancer patients generally have one option for beating their disease: surgery to remove the organ. But that could change, thanks to a new molecule found by Stanford University School of Medicine researchers that kills kidney cancer cells. Ideally, the researchers said, a drug created from this molecule would help fight the life-threatening disease while leaving patients' kidneys intact.

7 Jul 2008

Radioactive "tag" added to formaldehyde helps monitor body chemistry, disease

Scientists at the U.S. Department of Energy's Brookhaven National Laboratory have devised a simple, fast method for adding a radioactive "tag" to formaldehyde, a common organic chemical.

7 Jul 2008