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).

New understanding of processes that regulate genes

Scientists at Penn State have shed light on some of the processes that regulate genes -- such as the processes that ensure that proteins are produced at the correct time, place, and amount in an organism -- and they also have shed light on the evolution of the DNA regions that regulate genes.

25 Nov 2008

Scientists shed light on how DNA is unwound so that its code can be read

Researchers at The Scripps Research Institute have figured out how a macromolecular machine is able to unwind the long and twisted tangles of DNA within a cell's nucleus so that genetic information can be "read" and used to direct the synthesis of proteins, which have many specific functions in the body.

24 Nov 2008

Scientists present 'moving' theory behind bacterial decision-making

Biochemists at North Carolina State University have answered a fundamental question of how important bacterial proteins make life-and-death decisions that allow them to function, a finding that could provide a new target for drugs to disrupt bacterial decision-making processes and related diseases.

24 Nov 2008

Prion switching in response to environmental stress

If you have had a hard day at work, you may change your eating habits, perhaps favoring comfort food, but you don't suddenly develop the ability to eat the plate and cutlery.

24 Nov 2008

New vaccine principle delivers stronger and faster immune response

A new vaccine principle is being developed by scientists at the University of Copenhagen which - if it works to its full expected potential - could help to save millions of lives and revolutionise current vaccine technology.

24 Nov 2008

Bioinformatics lecturers enlist undergrads to tackle DNA annotation challenge

In this week's issue of PLoS Biology, a team of Marseilles University lecturers led by Pascal Hingamp, describe the Annotathon - an innovative bioinformatics teaching approach that appeals to undergraduate biology students.

24 Nov 2008

Mechanisms of cardiovascular disease and cancer give clues to new therapies

Cardiovascular conditions leading to heart attacks and strokes are treated quite separately from common cancers of the prostate, breast or lung, but now turn out to involve some of the same critical mechanisms at the molecular level.

21 Nov 2008

Does hormone treatment predispose patients to breast cancer?

Breast cancer, the leading cause of death among women in France, is the most commonly occurring cancer in women.

21 Nov 2008

DNA variations of serotonin transporter gene can influence drinking intensity

The brain's serotonergic system plays an important role in alcohol preference and consumption.

20 Nov 2008

Ortho Biotech submits NDA for Trabectedin in relapsed ovarian cancer

Ortho Biotech Products, L.P. has announced the submission of a new drug application (NDA) to the U.S. Food and Drug Administration (FDA) for trabectedin when administered in combination with DOXIL (doxorubicin HCI liposome injection) for the treatment of women with relapsed ovarian cancer (ROC).

20 Nov 2008

Researchers reveal a new aspect of tumor development

The DNA in our cells is constantly under assault from oxygen, the sun's radiation and environmental stresses.

20 Nov 2008

Bionovo to present phase 1B trial results of BZL101 in metastatic breast cancer

Bionovo, Inc. has announced the company will present results from the Phase 1B clinical trial of their lead drug candidate for advanced metastatic breast cancer, BZL101, at the Society for Integrative Oncology's Fifth International Conference in Atlanta, Georgia.

20 Nov 2008

Roche NimbleGen launches microarrays for analysis of DNA copy number variation

Roche NimbleGen, Inc. has launched NimbleGen Comparative Genomic Hybridization (CGH) microarrays in a 12x135K format for analysis of DNA copy number variation.

19 Nov 2008

Phosphaplatins kill ovarian, testicular, head and neck cancer cells

A new class of compounds called phosphaplatins can effectively kill ovarian, testicular, head and neck cancer cells with potentially less toxicity than conventional drugs, according to a new study published this week in the journal Proceedings of the National Academy of Sciences.

19 Nov 2008

Scientists find DNA repair 'scissors' after 18 year hunt

Cancer Research UK scientists have identified a long sought after enzyme that plays a critical role in a DNA repair pathway linked with inheritable breast and ovarian cancer, reveals research published in Nature.

19 Nov 2008

Scientists discover new compounds to target muscular dystrophy

Using a drug-discovery technique in which molecules compete against each other for access to the target - the strand of toxic RNA that causes the most common form of muscular dystrophy in adults - a team at the University of Rochester Medical Center has identified several compounds that, in the laboratory, block the unwanted coupling of two molecules that is at the root of the disease.

19 Nov 2008