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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.

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

Scientists identify several hundred genes that impact West Nile virus infection

Screening the entire human genome, a team headed by Yale University scientists have identified several hundred genes that impact West Nile virus infection. The findings reported Wednesday online in the journal Nature may give scientists valuable new clues about ways to intervene in a host of deadly viral infections.

6 Aug 2008

How short RNAs influence many proteins

During the last decade, microRNAs have emerged somewhat surprisingly as key players in the way genes are regulated. These short snippets of RNA do their work by interacting with messenger RNAs, which act as blueprints for protein creation.

6 Aug 2008

Update of treatment guidelines for HIV infection recommended by experts

An evaluation of the latest information on the treatment of the adult human immunodeficiency virus (HIV) has led an international panel of experts to update the guidelines and recommendations for antiretroviral treatment of HIV.

3 Aug 2008

New studies examine use of the nucleoside polymerase inhibitor, R1626, to the standard therapy for hepatitis C

Two new studies examine the use of the nucleoside polymerase inhibitor, R1626, to the standard therapy for hepatitis C. The reports appear in the August issue of Hepatology, a journal published by John Wiley & Sons on behalf of the American Association for the Study of Liver Diseases (AASLD).

31 Jul 2008

FDA clears test that determines what type of cancer cells are present in a malignant tumor

The U.S. Food and Drug Administration has cleared for marketing a test that can help health care professionals determine what type of cancer cells are present in a malignant tumor.

31 Jul 2008

New biomarker for early cancer detection? Research reveals that 'microRNA' may fit the bill

Scientists at Fred Hutchinson Cancer Research Center have discovered that microRNAs - molecular workhorses that regulate gene expression - are released by cancer cells and circulate in the blood, which gives them the potential to become a new class of biomarkers to detect cancer at its earliest stages. Muneesh Tewari, M.D., Ph.D., and colleagues describe their findings in the July 28 issue of the Proceedings of the National Academy of Sciences.

29 Jul 2008

Roche acquires Mirus to advance RNAi delivery research

Roche (Basel) and Mirus Bio Corporation (Madison, WI, USA) announced today that they have entered into a definitive agreement under which Roche will acquire Mirus Bio Corporation, a privately-owned US company based in Madison, Wisconsin, that focuses on the discovery and development of innovative nucleic acid based technologies, including a proprietary RNAi (Ribonucleic Acid interference) delivery platform.

22 Jul 2008

Gilead initiates phase III trial of Elvitegravir

Gilead Sciences, Inc. has announced that it has begun enrolling patients in a Phase III clinical trial of its investigational antiretroviral agent elvitegravir (GS 9137), a novel oral integrase inhibitor that is being evaluated for the treatment of HIV-1 infection.

22 Jul 2008