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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.

Rapid and label-free nanomechanical detection of biomarker transcripts in human RNA

Researchers from the Swiss Nanoscience Institute in Basel have developed a rapid method to detect the activity of a gene involved in controlling tumor growth.

18 Dec 2006

Biofunctional organic nanocrystals for quantitative detection of pathogen deoxyribonucleic acid

Waiting a day or more to get lab results back from the doctor's office soon could become a thing of a past.

4 Dec 2006

Weight determination of individual viruses with a miniature ion trap

Viruses are the simplest life forms on our planet, consisting of only DNA or RNA and a shell. After the prokaryotes (bacteria and archebacteria), viruses are the second most common type of organism. In our oceans they are the most common life form.

4 Dec 2006

Scientists discover function for antisense RNA

Researchers have found that a class of RNA molecules, previously thought to have no function, may in fact protect sex cells from self-destructing. These findings will be published in the November 17 issue of the journal Cell.

20 Nov 2006

DNA analysis could boost accuracy of thyroid tests

By fine-tuning "fine-needle aspiration" biopsies with a super-fast genetic microarray technology, a team of surgeons from NewYork-Presbyterian Hospital/Weill Cornell Medical Center in New York City says they can greatly enhance the accuracy of these tests.

14 Nov 2006

Scientists shed light on the roll of junk DNA

University of Iowa scientists have made a discovery that broadens understanding of a rapidly developing area of biology known as functional genomics and sheds more light on the mysterious, so-called "junk DNA" that makes up the majority of the human genome.

13 Nov 2006

Inhibiting a particular cancer-causing gene improves radiation effectiveness

Inhibiting a particular cancer-causing gene can enhance the cell-killing effects of radiation, a team of radiation oncologists and cancer biologists at the Kimmel Cancer Center at Thomas Jefferson University in Philadelphia has found.

8 Nov 2006

Phase I clinical trial of experimental gene therapy to treat HIV shows encouraging results

The results of a Phase I clinical trial of an experimental gene therapy aimed at treating HIV indicate that the therapy is safe and effective and also might sustain viral loads, according to a study published on Monday in the online edition of the Proceedings of the National Academy of Sciences, the AP/Washington Post reports.

8 Nov 2006

Liver damage can be reversed

Saint Louis University Liver Center scientists are presenting research today on a more effective way to treat hepatitis C patients who have been unresponsive to current drug therapies.

30 Oct 2006

Detecting rare microRNAs with gold nanoparticles

Over the past three years, numerous studies have shown that short pieces of single-stranded RNA, known as microRNAs, play a central role in the development of at least some cancers.

30 Oct 2006

Researchers identify peptide that spurs cargo transport in nerve cells

For the first time, researchers have identified a peptide that can spur cargo transport in nerve cells, a discovery that could help scientists better understand nerve cell function and test possible therapies for neurodegenerative diseases.

24 Oct 2006

New method for targeting malignant brain tumors

A new method for targeting malignant brain tumors through inducing the cancerous cells to "commit suicide" has been developed by a team of researchers headed by a Hebrew University of Jerusalem professor of biochemistry.

24 Oct 2006

Researchers identifiy how immune system contributes to nerve fiber damage caused by multiple sclerosis

Researchers have identified how the body's own immune system contributes to the nerve fiber damage caused by multiple sclerosis, a finding that can potentially aid earlier diagnosis and improved treatment for this chronic disease.

16 Oct 2006

Co-delivery of drugs and DNA from cationic core-shell nanoparticles self-assembled from a biodegradable copolymer

Efforts to treat cancer using genes and other oligonucleotides, such as short interfering RNA (siRNA), that turn off the biochemical processes that trigger malignancies have been hindered by difficulties in delivering nucleic acids to tumors.

16 Oct 2006

FDA approves test to help diagnose HIV

The U.S. Food and Drug Administration (FDA) has approved the APTIMA HIV-1 RNA Qualitative Assay, manufactured by Gen-Probe Incorporated (San Diego, Calif.).

5 Oct 2006

New clues about virulence of 1918 influenza virus

The first comprehensive analysis of an animal's immune response to the 1918 influenza virus provides new insights into the killer flu, report federally supported scientists in an article appearing online in the journal Nature.

28 Sep 2006

New understanding of how cells defend themselves

Biologists at the EPFL (Ecole Polytechnique Federale de Lausanne) have unveiled a new twist in a metabolic pathway that cells use to defend themselves against toxins made by disease-causing bacteria.

21 Sep 2006

Study extends the number of antigenic peptides that can be produced from a single protein

Understanding medical research problems often relies on the direct, linear relationship between the sequence of a protein and the DNA encoding that protein. In fact, colinearity of DNA and protein sequences is thought to be a fundamental feature of the universal genetic code.

13 Sep 2006

ExonHit licenses Merck rights to RNA splicing microarray patent

ExonHit Therapeutics S.A., a drug and diagnostic discovery company, has announced that Merck & Co., Inc. has been granted a non-exclusive license to rights for research only under Patent US 6,881,571.

11 Sep 2006