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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).

Estrogen improves host response after traumatic injury

Researchers have identified the receptor pathway used by estrogen to decrease liver injury after trauma and hemorrhage.

2 Apr 2007

Pseudoknots an important step in developing a viral vaccine

How is virus as for example HIV and bird flu able to make the cells within a human body work for the purpose of the virus?

2 Apr 2007

Single-walled carbon nanotubes may pose health risks

DNA-wrapped single-walled carbon nanotubes (SWCNTs) shorter than about 200 nanometers readily enter into human lung cells and so may pose an increased risk to health, according to scientists at the National Institute of Standards and Technology (NIST).

2 Apr 2007

MedImmune licenses reverse genetics technology to sanofi pasteur

MedImmune has announced that it has licensed its proprietary reverse genetics intellectual property to sanofi pasteur, the vaccines business of the sanofi-aventis Group, to support the development and construction of new vaccine strains to produce human seasonal, pre-pandemic and pandemic influenza vaccines.

1 Apr 2007

Penn State scientists reveal structure of gateways to gene control

Scientists at Penn State University will reveal in the 29 March 2007 issue of the journal Nature the first complete high-resolution map of important structures that control how genes are packaged and regulated throughout an entire genome.

31 Mar 2007

Researchers identify gene for osteoporosis

Researchers report the identification of a gene that may play a role in susceptibility to osteoporosis, the crippling disease that leads to bone fractures, especially of the hip and spine.

31 Mar 2007

Genetic culprits of idiopathic pulmonary fibrosis

Scientists at Johns Hopkins have identified the genetic culprits that trigger a hereditary form of a fatal lung disease.

30 Mar 2007

Molecular mechanism involved in development of schizophrenia

In studying the postmortem brain tissue of adults who had been diagnosed with schizophrenia, the researchers found that levels of certain gene-regulating molecules called microRNAs were lower among schizophrenia patients than in persons who were free of psychiatric illness.

30 Mar 2007

Isotope enriched foods for a longer life

Indulging in an isotope-enhanced steak or chicken fillet every now and again could add as much as 10 years to your life. Scientists have shown for the first time that food enriched with natural isotopes builds bodily components that are more resistant to the processes of ageing.

28 Mar 2007

Flushing out cancerous tumours

A researcher from the University of Bradford has been awarded a grant to investigate a way of flushing out cancerous tumours in the body with no potentially harmful side-effects.

28 Mar 2007

DNA layer reduces risk of reserve parts being rejected

Dutch researchers Jeroen van den Beucken and John Jansen have given body implants a DNA layer. This layer ensures a better attachment, more rapid recovery of the surrounding tissue and less immune responses. The older we get the more 'reserve-parts' we need.

27 Mar 2007

DNA repair runs by the biological clock

No sooner have the clocks gone forward than scientists have shed new light on the link between our biological clocks and DNA damage repair processes, essential in protecting our cells from cancer.

27 Mar 2007

FDA releases final report on 2006 E.coli spinach outbreak

The Food and Drug Administration (FDA) and California's Department of Health Services (CDHS) have released a joint report on an extensive investigation into the causes of an E.coli O157:H7 outbreak last fall that was associated with contaminated Dole brand Baby Spinach and resulted in 205 confirmed illnesses and three deaths.

27 Mar 2007

AACR's Sixth Annual Landon Awards recognize Richard Kolodner, Douglas Lowy and John Schiller

Scientists whose discoveries have led to fundamental advances in the science and treatment of cancer are the recipients of two prestigious international prizes offered by the Kirk A. and Dorothy P. Landon Foundation and the American Association for Cancer Research.

22 Mar 2007

Pioneer work on cellular response to DNA Damage wins GlaxoSmithKline award

The Biochemical Society's GlaxoSmithKline Award 'for distinguished research leading to new advances in medical science' goes to Stephen Jackson (University of Cambridge) for his pioneering work on cellular response to DNA damage.

22 Mar 2007

New dimension to understanding of p53 protein

The p53 protein routinely shuts down damaged cells and is one of our main lines of defence against cancer. Scientists at Karolinska Institutet in Sweden now present new findings on how p53 carries out this all-important function.

21 Mar 2007

Gene and a region of a chromosome identified that may lead to autism in children

Yale School of Medicine autism experts Fred Volkmar, M.D. and Ami Klin are part of a global research consortium from 19 countries to identify a gene and a region of a chromosome that may lead to autism in children.

13 Mar 2007

Aging boosts chances that a family line will be long-lived

Scientists have puzzled over just why organisms evolved aging as a strategy, and now there appears to be an answer. Allowing one individual to carry all the cellular damage inflicted over time, rather than dividing it between two organisms during reproduction, increases the chances that the individual's line will continue to reproduce for many generations to come, a new study indicates.

13 Mar 2007

Novel pathway for antibiotic-induced cell death

Scientists have identified unforeseen mechanisms by which quinolones - a family of broad-spectrum antibiotics among the most widely prescribed - induce bacterial cell death.

13 Mar 2007