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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.

Exposure to microgravity can simulate aging for immune cells

Telling someone to "act your age" is another way of asking him or her to behave better. Age, however, does not always bring improvements. [More]

Investigators use computer-assisted approach to identify and rank new clock genes

Over the last few decades researchers have characterized a set of clock genes that drive daily rhythms of physiology and behavior in all types of species, from flies to humans. [More]
Study reveals how human genome is protected from inadvertent import of viral RNA into cell

Study reveals how human genome is protected from inadvertent import of viral RNA into cell

Scientists of the Max F. Perutz Laboratories of the University of Vienna and the Medical University of Vienna, together with colleagues of the ETH Zurich, have now shown how double stranded RNA, such as viral genetic information, is prevented from entering the nucleus of a cell. [More]
Pediatric viral respiratory tract infection often complicated by bacterial sinusitis

Pediatric viral respiratory tract infection often complicated by bacterial sinusitis

Nearly 1 in 10 cases of viral upper respiratory tract infections in infants and young children is complicated by acute bacterial sinusitis, often in conjunction with acute otitis media, a longitudinal cohort study has found. [More]

Sarepta Therapeutics plans to submit eteplirsen NDA for treatment of Duchenne muscular dystrophy

Sarepta Therapeutics, Inc., a developer of innovative RNA-based therapeutics, today announced it plans to submit a New Drug Application (NDA) to the U.S. Food and Drug Administration by the end of 2014 for the approval of eteplirsen for the treatment of Duchenne muscular dystrophy (DMD). [More]

Researchers unravel complex genetic coding that allows embryonic cells to proliferate, perform myriad biological tasks

Consider the marvel of the embryo. It begins as a glob of identical cells that change shape and function as they multiply to become the cells of our lungs, muscles, nerves and all the other specialized tissues of the body. [More]

New computational method speeds up estimates of gene activity from RNA-seq data

With gene expression analysis growing in importance for both basic researchers and medical practitioners, researchers at Carnegie Mellon University and the University of Maryland have developed a new computational method that dramatically speeds up estimates of gene activity from RNA sequencing (RNA-seq) data. [More]
New device uses space-tested concept of capillary flow to diagnose infectious diseases

New device uses space-tested concept of capillary flow to diagnose infectious diseases

A new medical-testing device is being prepped to enter the battle against infectious disease. This instrument could improve diagnosis of certain diseases in remote areas, thanks in part to knowledge gained from a series of investigations aboard the International Space Station on the behavior of liquids. The device uses the space-tested concept of capillary flow to diagnose infectious diseases such as HIV/AIDS and tuberculosis. [More]
Study sheds light on how extra chromosome 21 upsets equilibrium of entire genome in Down syndrome

Study sheds light on how extra chromosome 21 upsets equilibrium of entire genome in Down syndrome

Occurring in about one per eight hundred births, Down syndrome - or trisomy 21 - is the most frequent genetic cause of intellectual disability. It results from a chromosomal abnormality where cells of affected individuals contain a third copy of chromosome 21 (1% of the human genome). [More]
New research may help scientists develop treatments or vaccines for Dengue fever

New research may help scientists develop treatments or vaccines for Dengue fever

Two recent papers by a University of Colorado School of Medicine researcher and colleagues may help scientists develop treatments or vaccines for Dengue fever, West Nile virus, Yellow fever, Japanese encephalitis and other disease-causing flaviviruses. [More]

Professor from INRS receives NIH grant to explore biomedical potential in field of oncology

Professor Nicolas Doucet of the Centre INRS-Institut Armand-Frappier has just received a research grant from the National Institutes of Health (NIH) in the amount of nearly US$600,000. The 5-year grant is to pursue cutting-edge research in the workings of tiny proteins called RNases and to explore their biomedical potential in the field of oncology as well as in inflammation and asthma. [More]
New data focuses on different approaches to improve diagnosis and treatment of HCC

New data focuses on different approaches to improve diagnosis and treatment of HCC

Epidemiological, genetic and clinical data presented today at the International Liver CongressTM 2014 are collectively focussed on different approaches designed to improve the diagnosis, staging and treatment of hepatocellular carcinoma (HCC). [More]

Researchers identify new Chinese herbal medicine that inhibits hepatitis C virus activity

Data from a late-breaking abstract presented at the International Liver CongressTM 2014 identifies a new compound, SBEL1, that has the ability to inhibit hepatitis C virus (HCV) activity in cells at several points in the virus' lifecycle. [More]

New technique of single-cell genomic analysis to reverse tissue engineering

Consider the marvel of the embryo. It begins as a glob of identical cells that change shape and function as they multiply to become the cells of our lungs, muscles, nerves and all the other specialized tissues of the body. [More]
miRNA expression and inhibition: an interview with Maja Petkovic, AMSBIO

miRNA expression and inhibition: an interview with Maja Petkovic, AMSBIO

RNA interference is a process in which RNA molecules inhibit gene expression. This gene silencing process is controlled by RNA-induced silencing complex or RISC and is initiated by small duplex RNA molecules or miRNA that is present inside cell plasma. [More]
Tumor-suppressing protein acts as dimmer switch to dial down gene expression

Tumor-suppressing protein acts as dimmer switch to dial down gene expression

A tumor-suppressing protein acts as a dimmer switch to dial down gene expression. It does this by reading a chemical message attached to another protein that's tightly intertwined with DNA, a team led by scientists at The University of Texas MD Anderson Cancer Center reported at the AACR Annual Meeting 2014. [More]
Scientists solve a decades-long mystery of cell biology

Scientists solve a decades-long mystery of cell biology

A team led by scientists at The Scripps Research Institute has identified a long-sought protein that facilitates one of the most basic functions of cells: regulating their volume to keep from swelling excessively. [More]
Comprehensive genomic analysis of low-grade brain tumors sorts into three categories

Comprehensive genomic analysis of low-grade brain tumors sorts into three categories

Comprehensive genomic analysis of low-grade brain tumors sorts them into three categories, one of which has the molecular hallmarks and shortened survival of glioblastoma multiforme, the most lethal of brain tumors, researchers reported at the American Association for Cancer Research Annual Meeting 2014. [More]
Researchers discover how of EBV virus takes over human cells gene regulating machinery

Researchers discover how of EBV virus takes over human cells gene regulating machinery

University of Montreal researchers have discovered how a component of the Epstein Barr (EBV) virus takes over our cells gene regulating machinery, allowing the virus to replicate itself. [More]
University of Montreal scientists discover molecular details of kissing disease virus attacks

University of Montreal scientists discover molecular details of kissing disease virus attacks

University of Montreal researchers have discovered how a component of the Epstein Barr (EBV) virus takes over our cells gene regulating machinery, allowing the virus to replicate itself. [More]