DNA News and Research

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DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).

Global Alliance for Pharmacogenomics

Leaders at the National Institutes of Health and the Center for Genomic Medicine in Japan have signed a letter of intent creating a Global Alliance for Pharmacogenomics.

15 Apr 2008

Study finds smoking related to subset of colorectal cancers

Smoking puts older women at significant risk for loss of DNA repair proteins that are critical for defending against development of some colorectal cancers, according to research from a team led by Mayo Clinic scientists.

13 Apr 2008

Discovery of small molecule that disrupts Ewing's sarcoma oncogene

Researchers at Georgetown University Medical Center have found a small molecule they say can block the action of the oncogene that causes Ewing's sarcoma, a rare cancer found in children and young adults.

13 Apr 2008

What we eat and drink affects our risk of cancer

A healthy diet and lifestyle protect against a wide range of diseases, and new research presented at the American Association for Cancer Research 2008 Annual Meeting, April 12-16, shows that cancer is no exception.

13 Apr 2008

The good and bad side of anti-cancer compounds

Compounds known as "HDAC inhibitors" exhibit cancer-killing activities in cultured cells.

11 Apr 2008

Stem cells and cancer: cancer pathways that also control the adult stem cell population

Speaking at the UK National Stem Cell Network Annual Science Meeting in Edinburgh, Professor Alan Clarke from Cardiff University described his work to investigate a mechanism that normally drives adult stem cells to repair the intestine.

11 Apr 2008

New strategy rapidly describes outbreak strains with next-generation DNA sequencing

In the event of an outbreak or a bioterrorist attack, rapid identification of the genetic changes responsible for virulence or drug resistance is essential to mounting an effective response.

11 Apr 2008

Gene linked to inherited blood biomarker associated with asthma risk

Risk for developing asthma is linked to variants in a gene called CHI3L1, which can be measured by checking levels of an inherited blood protein regulated by that gene, according to new research sponsored by the National Heart, Lung, and Blood Institute (NHLBI) of the National Institutes of Health.

11 Apr 2008

Computational approaches to the role of epigenetic marks in transcription regulation

A closer alliance between computational and experimental researchers is needed to make progress towards one of biology's most challenging goals, understanding how epigenetic marks contribute to regulation of gene expression.

11 Apr 2008

Looping genes may hold a key to understanding breast cancer

Another piece of the puzzle that is breast cancer has been found by University of Queensland researchers.

10 Apr 2008

Genetic test offers clues about cardiac hypertrophy in children

A mechanic uses diagnostic tests to determine why your engine is making strange sounds before lifting a wrench to fix the problem.

10 Apr 2008

Variation in CHI3L1 gene increases risk of asthma

A tiny variation in a gene known as CHI3L1 increases susceptibility to asthma, bronchial hyperresponsiveness and decline in lung function, researchers report early online in the New England Journal of Medicine.

10 Apr 2008

Better understanding of how T-cell leukemias and other disorders arise

Contrary to the currently accepted model of T-cell development, researchers at the University of Pennsylvania School of Medicine have found that juvenile cells on their way to becoming mature immune cells can develop into either T cells or other blood-cell types versus only being committed to the T-cell path.

10 Apr 2008

Using sunbeds under 35 could prove fatal

Eight out of ten sunbed users have increased their risk of a life-threatening form of skin cancer by around 75 per cent according to Cancer Research UK.

9 Apr 2008

Too many gene copies stimulate tumor cell growth

New data, generated by Peter Lichter and colleagues, at the German Cancer Research Center, Heidelberg, have characterized a molecular pathway underlying low-grade forms of a type of brain tumor known as an astrocytoma.

9 Apr 2008

New technique traces ancestry of disease genes

A team of researchers from Washington University in St. Louis and the Israeli Institute of Technology (Technion) in Haifa has developed a technique to detect the ancestry of disease genes in hybrid, or mixed, human populations.

9 Apr 2008

Solving the Z ring's mysteries may lead to new antibiotics

A team led by Johns Hopkins researchers has solved important puzzles concerning how certain proteins guide the reproduction of bacteria, discoveries that could lead to a new type of antibiotics.

9 Apr 2008

Cutting unnecessary treatment for blood disorder in pregnancy

A new test for identifying a mismatch between the blood of a pregnant woman and her baby is accurate, feasible, and could substantially reduce unnecessary treatment, finds a Bristol study published on bmj.com.

9 Apr 2008

Discovery of a critical early player in the path that turns cells to fat

Given that obesity - defined as an excess amount of body fat relative to lean body mass - is a major health concern in the United States and an increasing problem in the developing world, such a fuller understanding of the molecular processes governing fat tissue formation could ultimately hold clinical importance, according to the researchers.

9 Apr 2008

Rare genetic variants have big impact on blood pressure

Yale University researchers report in the journal Nature Genetics that they have discovered that rare genetic variants can be associated with a dramatically lower risk of developing high blood pressure in the general population.

7 Apr 2008