Nucleotides News and Research

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Genome update defines landscape of breast and colon cancers

One year after completing the first large-scale report sequencing breast and colon cancer genes, Johns Hopkins Kimmel Cancer Center scientists have studied the vast majority of protein-coding genes which now suggest a landscape dominated by genes that each are mutated in relatively few cancers.

12 Oct 2007

Research shows how stem cells decide to become either skeletal or smooth muscle

Researchers have discovered a key protein that controls how stem cells "choose" to become either skeletal muscle cells that move limbs, or smooth muscle cells that support blood vessels, according to a study published in the Proceedings of the National Academy of Sciences (PNAS).

11 Oct 2007

Reservoir of Marburg virus identified in a species of fruit bat

The Marburg virus, like its fearsome cousin Ebola, belongs to the Filoviridae family. It carries the name of the German town where it was first detected in 1967, after a mysterious epidemic had hit employees of the Behring laboratory.

8 Oct 2007

Genes that increase rheumatoid arthritis risk found

Researchers in the United States and Sweden have identified a genetic region associated with increased risk of rheumatoid arthritis (RA), a chronic and debilitating inflammatory disease of the joints that affects an estimated 2.1 million Americans.

8 Oct 2007

Smallpox evolved earlier than believed

Smallpox is older than thought, according to results of a new technique reported in the Sept. 24 issue of the Proceedings of the National Academy of Sciences by researchers from Lawrence Livermore National Laboratory and the Centers for Disease Control (CDC).

27 Sep 2007

Enzyme's second messenger contributes to cell overgrowth

Scientists at the University of California, San Diego (UCSD) School of Medicine have uncovered a novel pathway by which hormones elevated in inflammation, cancer and cell injury act on cells to stimulate their growth.

27 Sep 2007

BRCA1 gene plays significant role in non-small cell lung cancer

Barcelona, Spain: Researchers have found that the breast cancer susceptibility gene, BRCA1, plays a significant role in non-small cell lung cancer (NSCLC).

25 Sep 2007

Genetic influences on addictions - new findings

Previous research has extensively studied the association of the dopamine D2 receptor gene (DRD2) with alcoholism.

25 Sep 2007

Framingham Heart Study 100K result published

BioMed Central has announced that 17 research articles carried out using genetic data from the Framingham Heart Study (FHS), are being published as a supplement to BMC Medical Genetics.

23 Sep 2007

Computer algorithm traces ancestry using anonymous DNA samples

A group of computer scientists, mathematicians, and biologists from around the world have developed a computer algorithm that can help trace the genetic ancestry of thousands of individuals in minutes, without any prior knowledge of their background.

21 Sep 2007

Rheumatoid arthritis genes

A paper published this week in the open access journal PLoS Medicine provides strong evidence that one specific part of the genome is associated with rheumatoid arthritis.

18 Sep 2007

Androstenone determines whether male body odor smells pleasant

New research from Rockefeller University, performed in collaboration with scientists at Duke University in North Carolina, reveals for the first time that this extreme variability in peopl's perception of androstenone is due in large part to genetic variations in a single odorant receptor called OR7D4.

17 Sep 2007

Gene-drug interactions that lower blood pressure

Patients with high blood pressure respond very differently to antihypertensive medication, making treatment selection tricky for physicians.

13 Sep 2007

New genetic risk factor for rheumatoid arthritis and lupus

A genetic variation has been identified that increases the risk of two chronic, autoimmune inflammatory diseases: rheumatoid arthritis (RA) and systemic lupus erythematosus (lupus).

10 Sep 2007

Ultraconserved elements in the genome: Are they indispensable?

Three years ago, "ultraconserved elements" were discovered in the genomes of mice, rats, and humans.

5 Sep 2007

First individual genome sequence of one person

Independent sequence and assembly of the six billion base pairs from the genome of one person ushers in the era of individualized genomics

4 Sep 2007

Genetic variant linked to human height discovered

It became clear nearly a century ago that many genes likely influence how tall a person grows, though little progress, if any, has followed in defining the myriad genes. Now an international research team brings light to this age-old question by pinpointing a genetic variant associated with human height - the first consistent genetic link to be reported.

3 Sep 2007

Gene regulation in humans is closer than expected to simple organisms

Gene networks are some of the most basic features of a living organism. An external or internal stimulus activates some genes, which in turn control others genes whose activity turns on or off various biological processes (such as the cell cycle, energy production, DNA repair, cellular suicide etc).

30 Aug 2007

Smoking turns on genes

Smoking tobacco is no longer considered sexy, but it may prove a permanent turn on for some genes.

26 Aug 2007

Proteins involved in fragile X syndrome identified

The interplay of two proteins that bind to messenger RNA, a molecule that mediates translation of the information encoded in genes into proteins, triggers the appearance of fragile X-associated tremor/ataxia syndrome (FTAX), a late-life disorder associated with the gene that causes fragile X syndrome in children, said researchers from Baylor College of Medicine in Houston and Emory University School of Medicine in a report that appears today in the journal Neuron.

17 Aug 2007