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Ribonucleic acid (RNA) is a biologically important type of molecule that consists of a long chain of nucleotide units. Each nucleotide consists of a nitrogenous base, a ribose sugar, and a phosphate.

Nanoparticles target multiple cancer genes, shrink tumors more effectively

Nanoparticles filled with small interfering RNA (siRNA) molecules targeting two genes that trigger melanoma have shown that they can inhibit the development of melanoma, the most dangerous type of skin cancer.

27 Oct 2008

Respiratory syncytial virus may hide in the lungs, lead to asthma

Conventional wisdom has been that respiratory syncytial virus (RSV) - a common virus that causes infection in the lungs - comes and goes in children without any long lasting impact.

27 Oct 2008

Newly discovered mechanism can explain the Beckwith-Wiedemann syndrome

Researchers from Uppsala University have discovered a mechanism that silences several genes in a chromosome domain. The findings, published in today's on-line issue of Molecular Cell, have implications in understanding the human disorder Beckwith-Wiedemann syndrome.

26 Oct 2008

Unpicking the complexity of human disease

Impressive advances in our understanding of the genetic basis of disease were outlined at the 3rd ESF Functional Genomics Conference in Innsbruck, Austria.

13 Oct 2008

Body's built-in weapon against HIV explained

Humans have a built-in weapon against HIV, but until recently no one knew how to unlock its potential.

12 Oct 2008

Micronics receives two new patents on microfluidic technologies

Micronics, Inc. today announced that it has been issued two patents from the United States Patent and Trademark Office (USPTO) for novel microfluidic devices and methods. These new patents relate to the company’s focus on the development of rapid and easy to use clinical diagnostic products.

29 Sep 2008

Herpes virus changes anti-herpes drug acyclovir to form that hinders AIDS virus

The drug acyclovir has long been used to suppress outbreaks of oral and genital herpes. Herpes viruses change acyclovir to a form that prevents them from reproducing.

10 Sep 2008

Seattle department finds OraSure HIV test to be less accurate than label claims

A report by Public Health -- Seattle and King County in Washington state has found that testing with OraSure Technologies' OraQuick test provides less accurate results than the label claims, Bloomberg reports.

7 Sep 2008

CDC MMR/autism study - wrong questions asked, wrong children studied, wrong conclusions NAA says

A Centers for Disease Control and Prevention (CDC) study released today claims there is no link between the MMR vaccine and autism. The National Autism Association (NAA) says this study does nothing to dispel the growing public concern over a vaccine-autism connection and raises several questions concerning design and methodology.

4 Sep 2008

CDC MMR/autism study - wrong questions asked, wrong children studied, wrong conclusions NAA says

4 Sep 2008

Nature inspires new highly specific drugs and organic products

The best place to seek novel compounds for pharmaceutical drugs, alternative energy sources, and a host of industrial applications, is within natural systems that have evolved over millions of years.

2 Sep 2008

Anti-itching drug clemizole shows promise against hepatitis C

The fight against the liver disease hepatitis C has been at something of an impasse for years, with more than 150 million people currently infected, and traditional antiviral treatments causing nasty side effects and often falling short of a cure. Using a novel technique, medical and engineering researchers at Stanford University have discovered a vulnerable step in the virus' reproduction process that in lab testing could be effectively targeted with an obsolete antihistamine.

31 Aug 2008

FDA clears non-invasive test to help manage heart transplant patients

The U.S. Food and Drug Administration has announced it has cleared for marketing a non-invasive test that uses molecular expression techniques to assist doctors in managing heart transplant patients post-surgery for potential organ rejection.

27 Aug 2008

Infections of amniotic fluid may be a significant cause of premature birth

Previously unrecognized and unidentified infections of amniotic fluid may be a significant cause of premature birth, according to researchers at the Stanford University School of Medicine.

25 Aug 2008

Rifamycin antibiotics attack tuberculosis bacteria with walls, not signals

Amid concerns about the rising number of new tuberculosis cases worldwide, researchers led by Rockefeller University's Seth A. Darst have reexamined and disproved a theory that describes how a potent class of antibiotics kills a deadly form of bacteria. The findings, which will appear in this week's online issue of the Proceedings of the National Academy of Sciences, not only bring scientists closer to understanding how these antibiotics work but also how the bacteria become resistant to their effects.

19 Aug 2008

Evolution in the ribosome

A new study of the ribosome, the cell's protein-building machinery, sheds light on the oldest branches of the evolutionary tree of life and suggests that differences in ribosomal structure between the three main branches of that tree are "molecular fossils" of the early evolution of protein synthesis.

18 Aug 2008

MicroRNAs help control blood-vessel development

The development and repair of heart tissue and blood vessels is intimately tied to a tiny piece of ribonucleic acid (RNA) that is found nowhere else in the body, researchers at UT Southwestern Medical Center have found.

12 Aug 2008

Scientists identify microRNA that controls blood vessel development - therapeutic target for a number of diseases

Scientists from the Gladstone Institute of Cardiovascular Disease (GICD) and UCSF have identified a key regulatory factor that controls development of the human vascular system, the extensive network of arteries, veins, and capillaries that allow blood to reach all tissues and organs.

11 Aug 2008

Designer RNA fights high cholesterol, medical researchers find

Small, specially designed bits of ribonucleic acid (RNA) can interfere with cholesterol metabolism, reducing harmful cholesterol by two-thirds in pre-clinical tests, according to a new study by researchers at UT Southwestern Medical Center in collaboration with Alnylam Pharmaceuticals and the Massachusetts Institute of Technology.

11 Aug 2008

RNAi used to dramatically suppress HIV infection in an organism

Hopes languished last September when a promising candidate HIV vaccine failed to work. Despite this setback, many researchers still believe immunization is possible, and a new study suggests they're correct-at least at the cellular level.

10 Aug 2008