DNA News and Research

RSS

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).

Flaw in DNA helps explain cancers and aging

Their finding explains how oxidative DNA damage - a process long believed to underlie cancers and aging - can create permanent genetic damage.

30 Aug 2004

Mission to uncover the genetic make-up of Britain

The researchers will take blood from thousands of volunteers all over Britain. The samples will be used to isolate key pieces of DNA that best identify the influences – including Vikings, Saxons, and Celts – shaping regional populations.

26 Aug 2004

Researchers using light to control genes and better understand the role of certain genes in embryonic development

As our understanding of biology increases, the tools of research become almost as important as the researchers wielding them. Currently, one of the major obstacles to research is actually getting inside of cells and tissue to see what is going on as it happens.

25 Aug 2004

Researchers have identified multiple changes in the gene-expression patterns of cells involved with tumor progression in liver cancer patients

Virginia Commonwealth University researchers have identified multiple changes in the gene-expression patterns of cells involved with tumor progression in liver cancer patients and in those with cirrhosis, which may help scientists predict a person’s risk of developing primary liver cancer.

25 Aug 2004

Researchers have coaxed RNA to self-assemble into 3-D arrays

These RNA structures can form a wider variety of shapes than double-stranded DNA can and are easier to manipulate than many protein alternatives.

23 Aug 2004

Researchers find how cancers, particularly lymphomas, develop and might be prevented

Researchers at Children's Hospital Boston have begun unraveling the mystery of how B lymphocytes - key infection-fighting cells in the body - are able to create many different kinds of specialized antibodies through selective gene mutations, while being protected from random mutations that could give rise to cancers.

23 Aug 2004

Exposure to simian virus 40 (SV40) is not associated with cancer in humans

Two upcoming studies by scientists at the National Cancer Institute (NCI), provide further evidence that exposure to simian virus 40 (SV40) is not associated with cancer in humans.

23 Aug 2004

Computer model of damaged DNA bends the rules

Our knees may become stiff when injured, but banged up DNA becomes flexible, suggests the most detailed computer model of damaged DNA to date. Further, this flexibility explains how the body's enzymes recognize and fix damaged DNA.

23 Aug 2004

New information about how HIV evades eradication from the body

Researchers at the National Cancer Institute, have discovered new information about how human immunodeficiency virus (HIV), the virus that causes acquired immune deficiency (AIDS), possibly evades eradication from the body.

23 Aug 2004

First whole-genome survey of where three commonly used retroviruses into human DNA

Retroviruses are one of the most common vehicles for delivering therapeutic payloads via gene therapy in animal models of disease and human patients.

22 Aug 2004

Small molecules as artificial gene regulators

Scientists have been trying for some time to develop molecules that mimic natural regulators of gene expression.

22 Aug 2004

Fruit and vegetables eaten before pregnancy lowers risk of leukemia

A new study led by researchers at the University of California, Berkeley, suggests that women who eat more vegetables, fruit and foods containing protein before pregnancy may have a lower risk of having a child who develops leukemia, the most common childhood cancer in the United States.

20 Aug 2004

Test for identifying which cases of prostate cancer will become life threatening

Karin Drotschmann, Ph.D., a researcher at Wake Forest University Baptist Medical Center, has won the “New Investigator Award” from the Department of Defense, Prostate Cancer Research Program, for her work to develop a test for identifying which cases of prostate cancer will become life threatening.

20 Aug 2004

Statement regarding DNA ruling by Ninth Circuit Court of Appeals

California's Attorney General Bill Lockyer has issued this statement regarding the U.S. Court of Appeals for the Ninth Circuit's order today in U.S. v. Kincade:

20 Aug 2004

Immunotherapy and chemotherapy combined, slows tumor progression and extends survival of patients with glioblastoma multiforme

Researchers at Cedars-Sinai's Maxine Dunitz Neurosurgical Institute have found that the combination of immunotherapy and chemotherapy significantly slowed tumor progression and extended survival of patients with glioblastoma multiforme (GBM).

17 Aug 2004

The prion appears to function as an evolutionary stepping stone

“This prion,” explains Lindquist, “has a capacity to hide and release genetic information throughout the entire genome that can contribute to new traits in a complex way.”

16 Aug 2004

Discovery of new ways to manipulate AIDS virus

16 Aug 2004

Novel pharmacological target for cannabinoid-based therapies

Cannabinoids, the active ingredients in marijuana, restrict the sprouting of blood vessels to brain tumors by inhibiting the expression of genes needed for the production of vascular endothelial growth factor (VEGF).

15 Aug 2004

Pineal gland which regulates the cycles of sleep and waking evolved to improve vision

The pineal gland - which regulates the cycles of sleep and waking - appears to have evolved as an indirect way to improve vision, by keeping toxic compounds away from the eye

13 Aug 2004

New method for building carbohydrate molecules

Chemists at the California Institute of Technology have succeeded in devising a new method for building carbohydrate molecules in a simple and straightforward way that requires very few steps. The new synthesis strategy should be of benefit to scientists in the areas of chemistry and biology and in the pharmaceutical industry.

13 Aug 2004