Study in Nature: MicroRNAs hold promise for treating diseases in blood vessels

... of microRNAs (miRNAs). These small, single-stranded molecules of ribonucleic acid (RNA), discovered in the Victor Ambros lab in 1993, fine-tune protein ... of deoxyribonucleic acids (DNA), they are copied into chains of messenger ribonucleic acids (mRNA) that are "read" by cellular machines that build proteins. ...

Researchers map how staph infections alter immune system

... and the adaptive system, whose memory cells are called into action to fight off subsequent infections. In this study, researchers extracted ribonucleic acid from a drop of blood and placed it on a special gene chip called a microarray, which probes the entire human genome to determine which genes are ...

UT Southwestern's Olson wins prestigious French award for heart research

... cause congenital heart disease, the most frequent form of birth defect. Most recently, Dr. Olson has turned his attention to distinctive forms of ribonucleic acid called microRNAs, chemical cousins of DNA, which are increasingly recognized to activate, turn off or fine-tune various functions in cells. ...

Frost & Sullivan Recognizes Neotropix's Approach to the Treatment of Small Cell Lung Cancer and Neuroendocrine Cancers

... neuroendocrine cancers. This state-of-the-art product aids cancer treatment by using a naturally occurring, replication-competent, single-stranded ribonucleic acid (RNA) virus. (Logo: http://www.newscom.com/cgi-bin/prnh/20081117/FSLOGO ) NTX-010's benefits include a convenient once-only dosing ...

Promoting the healing process after a heart attack

... disease are still the most common cause of death in Western industrialised nations. According to recent findings, small pieces of composed of ribonucleic acids (micro-RNAs) affect the synthesis of hundreds of proteins that play a role in these diseases. The aim is to discover new inhibitors for this ...

Discoverers of Small Regulatory RNAs and Cholesterol-Lowering Drugs to Receive Lasker Awards for Medical Research

... work launched new fields of scientific research that have fostered significant advances in the medical arena." The discovery of small regulatory ribonucleic acids (RNAs) by Victor Ambros, David Baulcombe, and Gary Ruvkun broke open an entire new field. Until that time, proteins, not RNAs, were thought to ...

Tiny molecule helps control blood-vessel development, UT Southwestern researchers find

... DALLAS Aug. 12, 2008 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. Because of its specificity to the ...

New test for joint infection could spare some patients an unnecessary procedure

... infection thereby giving false positives. Tuan says this new problem led them to expand their PCR approach by testing for bacterial messenger ribonucleic acid (mRNA). "When bacteria are dying, their mRNA is one of the first things to go," he says. As a result, the researchers hypothesized that a good ...

Tiny RNA Molecules Control Breast Cancer's Spread

... to better prognosis, treatments, researchers say WEDNESDAY, Jan. 9 (HealthDay News) -- Researchers have zeroed in on a handful of tiny ribonucleic acid (RNA) molecules that seem to control whether or not breast cancer travels to the lung and bone. These "microRNAs" essentially serve as brakes ...

Small RNAs can prevent spread of breast cancer

... Howard Hughes Medical Institute researchers have identified small pieces of ribonucleic acid (RNA) that suppress the spread of breast cancer to the lungs and bone. The new research shows that the most invasive and aggressive human breast ...

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Ribonucleic in Medical Technology

Arrowhead Subsidiaries Insert & Calando Present Data on Cyclosert Drug Delivery System at AACR Meeting

... will present data from animal studies using the Cyclosert system augmented by Calando's own proprietary technology. Calando is developing a type of ribonucleic acid (RNA) called small interfering RNA, or siRNA, for anticancer use. In the tests, this siRNA-containing formulation, using Cyclosert as a delivery ...

Ribonucleic in Medical Dictionary

Hepatitis a

... hepatitis A is common. With the exception of HBV, all the common virus es that cause hepatitis a re known as RNA virus es because they contain ribonucleic acid or RNA as their genetic material. The other main causes of hepatitis a re virus es in contaminated food or drink when hygiene is ...

Ribonucleic in Biological News

Small molecules might block mutant protein production in Huntington's disease

... the problem is important, it's worth doing," he said. In the current study, the researchers created short lengths of molecules that resemble ribonucleic acid (RNA), the chemical cousin of DNA. These mimics, called PNAs and LNAs, were specifically designed to bind to CAG repeats, preventing cells from ...

Genetic switch potential key to new class of antibiotics

... and carry its messages. In the classical view of gene expression, instructions stored in deoxyribonucleic acid (DNA) chains are copied into messenger ribonucleic acids (mRNAs). The mRNAs are then transported to ribosomes that pair them with transfer RNAs that contribute amino acids into a protein chain, ...

Small RNAs can play critical roles in male infertility/contraception

... based upon the impact factor. The study findings indicate that the X chromosome in developing sperm cells encodes numerous tiny ribonucleic acids called microRNAs despite the fact that that most of genes on the X chromosomes are suppressed. This unprecedented observation implies that ...

To fight drug addiction, UB researchers target the brain with nanoparticles

... in drug addiction. DARPP-32 is a protein in the brain that facilitates addictive behaviors. Silencing of the DARPP-32 gene with certain kinds of ribonucleic acid (RNA), called short interfering RNA (siRNA), can inhibit production of this protein and thus, could help prevent drug addiction. "When you ...

Earth's original ancestor was LUCA, not Adam nor Eve

... ideas about LUCA. In particular, they are much more compatible with the theory of an early RNA world, where early life on Earth was composed of ribonucleic acid (RNA), rather than deoxyribonucleic acid (DNA). However, RNA is particularly sensitive to heat and is unlikely to be stable in the hot ...

UQ research targets West Nile virus and dengue fever

... a small molecule which, among other functions, controlled the host's response to viral infection. This molecule, called a subgenomic noncoding ribonucleic acid (sfRNA), is a part of the virus genome. "To develop new and effective antiviral strategies, we have to know as much as possible about the ...

LSUHSC research identifies key contributor to Alzheimer's disease process

... at LSU Health Sciences Center New Orleans, is the lead author of a paper identifying, for the first time, a specific function of a fragment of ribonucleic acid (RNA), once thought to be no more than a byproduct, in regulating inflammation and the development of Alzheimer's disease. The paper, An ...

Corn researchers discover novel gene shut-off mechanisms

... grow in the lab, have provided a lot of what scientists know about gene silencing in plants. An important key to the process is short sequences of ribonucleic acids known as "small RNAs" which act like biochemical switches that shut off genes, thus playing a fundamental role in plant development. ...

RSV may hide in the lungs, lead to asthma, UT Southwestern researchers report

... infections throughout life. There is currently no vaccine available. Dr. Ramilo said the team's findings contradict the current thinking that ribonucleic acid viruses like RSV are easily destroyed. "Whether RSV persists in children remains to be seen, but the fact that the virus persists in mice is ...

RNA molecules, delivery system improve vaccine responses, effectiveness

... vaccines against infectious diseases has been developed by biomedical engineers at The University of Texas at Austin. The findings use specific ribonucleic acid (RNA) molecules to significantly bolster a vaccine's effectiveness while tailoring it based on the type of immune response that is most ...

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Ribonucleic in Biological Technology

Nastech Assigns Intellectual Property Related to the Development of RNA-Based Therapeutics to its Subsidiary, MDRNA, Inc.

... Effects of siRNA Molecules -- Double-Stranded ribonucleic Acid Molecules Having Ribothymidine -- ... Ribonucleotide Modified Double Stranded ribonucleic Acid Molecules -- Methods and Compositions for ... -- Pharmaceutical Compositions for Delivery of ribonucleic Acid to a Cell -- Compositions and Methods for ...

Researchers develop new way to see single RNA molecules inside living cells

... Biomedical engineers have developed a new type of probe that allows them to visualize single ribonucleic acid (RNA) molecules within live cells more easily than existing methods. The tool will help scientists learn more about how RNA operates within ...

M. D. Anderson Automates Laboratory Workflow with Stone Bond Technologies : EE-LIMS™ from Stone Bond Technologies Will Document Activities within the Laboratory Workflow at the siRNA Facility, Increasing Throughput, While Reducing Risks

... The newly established Small Interfering ribonucleic Acid (siRNA) Facility at M. D. Anderson Cancer Center has been charged with providing high-quality siRNA screening services for both internal and ...

Glossary for The BioPharm Guide to Fermentation and Cell Culture

... location of particular sequences of base pairs. ribosome Cell organelles that translate RNA to build proteins. RNA ribonucleic acid; similar to DNA but based on ribose, and with the base uracil (U) in place of thymine (T). Various forms of RNA are found: ...

Simple and Rapid Isolation of Plant RNA Using the Eppendorf Perfect RNA, Eukaryotic, Maxi Kit

... acid guanidinium thiocyanate-phenol-chloroform extraction. Chirgwin, J.M., et al. (1979) Isolation of biologically active ribonucleic acid from sources enriched in ribonuclease. Biochem. 18(24): 5294-5299. Maniatis, T., Fritsch, E.F., and ...

Total RNA Isolation Protocol 1,2,3

... 1 mM EDTA, pH 8.0).15 References Chirgwin, J.M. et al. (1979) Isolation of biologically active ribonucleic acid from sources enriched in ribonuclease. Biochem. 18:5294-5299. Chomczynski, P. and Sacchi, N. (1987) Single-step method ...

Ribonucleic in Biological Definition

Cell metabolism

... compounds, for transport into the cell through the plasma membrane and ultimately for the polymerisation into new proteins via the use of ribonucleic acids ( RNA ) and ribosomes . See also Biochemistry Metabolism Metabolic pathway ...

Gene

... According to Dawkins, the possibly disappointing answer to the question "what is the meaning of life?" may be "the survival and perpetuation of ribonucleic acids and their associated proteins". Types of genes Due to rare, spontaneous errors (e.g. in DNA replication ) mutations in the sequence ...

Nucleoplasm

... attached to proteins called histones and are usually arranged in to a dense network called chromatin. Nucleoli are granular structures which make ribonucleic DNA (rDNA) and assemble it with proteins. ...

Polymerase chain reaction

... Comparison of gene expression Researchers have used traditional PCR as a way to estimate changes in the amount of a gene's expression . ribonucleic acid (RNA) is the molecule into which DNA is transcribed prior to making a protein, and those strands of RNA that hold the instructions for protein ...

RNA

... ribonucleic acid ( RNA ) is a nucleic acid consisting of a string of covalently-bound nucleotides . It is biochemically distinguished from DNA by the ...

Ribonucleic in Biological Dictionary

Ribonucleic acid

... ribonucleic acid (RNA) is a biologically important type of ... RNA is very similar ... Messenger ribonucleic acid (mRNA) is a molecule of RNA encoding a ... protein synthesis: ... (Redirected from ribonucleic acid ) Jump to: navigation, search. Previous ...

Messenger RNA

... Messenger ribonucleic acid (mRNA) is a molecule of RNA encoding a ... to the sites of protein synthesis: ... ribonucleic acid ( RNA ) is a biologically important type of ... cytoplasm where protein ... Messenger ribonucleic acid (mRNA) is a class of ...

Pre-mRNA

... mRNA ( pre - mRNA ) is an immature single strand of messenger ribonucleic acid ( mRNA ). pre - mRNA is synthesized from a DNA template in the ... although strictly speaking hnRNA may include nuclear ... Messenger ribonucleic acid ( mRNA ) is a molecule of RNA encoding a chemical ...

HnRNA

... Precursor mRNA (pre-mRNA) is an immature single strand of messenger ribonucleic acid (mRNA). pre-mRNA is synthesized from a DNA template in the cell ... nuclear RNA ( hnRNA ), is an immature single strand of messenger ribonucleic acid (mRNA). pre-mRNA is synthesized ... The hnRNA molecules are ...

Untranslated RNA

... used synonyms are non-protein-coding RNA (npcRNA), non-messenger RNA (nmRNA), small non-messenger RNA ... Messenger ribonucleic acid (mRNA) is a molecule of RNA encoding a chemical "blueprint" for a protein product. mRNA is transcribed from a DNA template, and ...

Thymine

... thymine - a base found in DNA (but not in RNA) and derived from ... Why did mother nature use uracil to replace thymine in mRNA (messenger ribonucleic acid) ... ( synthetic thymine dimer DNA fragments, blended into suntan lotion, ... Pyrimidine bases are Cytosine, Thymine , and Uracil ...

RNase

... ... Ribonuclease P ( RNase P) is a type of Ribonuclease which cleaves RNA. RNase P is unique from other RNases in that it is a ribozyme – a ribonucleic acid that acts as a catalyst in the same way that a protein based ... Learn how to decontaminate lab surfaces and equipment, detect ...

RNA virus

... health awareness site, hosted by Dr. C. Everett Koop, provides ... Micrographed stages of an RNA virus budding at the cell membrane ... ribonucleic Acid RNA , genetic material of certain viruses RNA viruses and, in cellular organisms, the molecule that directs the middle steps of ... ...

RNA

... its ultimate goal of creating protein molecules ... The language of the information RNA carries between DNA and proteins is in a ... ribonucleic Acid RNA , genetic material of certain viruses RNA viruses and, in cellular organisms, the molecule that directs the middle steps of ... ...

Ribozyme

... RNA. ... Ribozyme summary with 6 pages of encyclopedia entries, essays, summaries, research information, and more. ... A ribozyme (from ribonucleic acid enzyme, also ... Obviously when the ribozyme is introduced into the cell, the researcher does not ... ribozyme to cut all the RNA ...

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