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).

Risk of thyroid cancer rises with increasing radiation dose

The risk of thyroid cancer rises with increasing radiation dose, according to the most thorough risk analysis for thyroid cancer to date among people who grew up in the shadow of the 1986 Chernobyl power-plant disaster.

2 Sep 2004

Women perceive color better than men

Stereotypes about the superior color sense of women may well be rooted in genetics. Brian Verrelli, a researcher at the Biodesign Institute at ASU, is co-collaborator on a study suggesting that natural genetic selection has provided women with a frequent ability to better discriminate between colors than men.

2 Sep 2004

Researchers discover that DNA fragments destroy melanoma cells

Researchers at Boston University School of Medicine have discovered that small DNA fragments or oligonucleotides that resemble the telomere (chromosome end), also called T-oligos, can cause human melanoma cells to undergo extensive apoptosis (cell death), while surviving melanoma cells become more differentiated and therefore less aggressive.

1 Sep 2004

Knowing more about a gene’s responsibility will stir up a swarm of controversy

Pinning down how genetics contributes to behavior is slippery business. For instance, identifying the genes linked to a likelihood of developing schizophrenia or autism could stigmatize those who possess the genes, and may even play a role in defining the conditions themselves.

1 Sep 2004

Researchers accurately pinpoint the types of lymphoma, Hodgkins or non-Hodgkins

“There are many types and subtypes of lymphoma, some of which are easy to detect, but many that are very difficult to identify,” says Antonio Giordano, M.D., Ph.D., director of the Sbarro Institute at Temple and one of the study’s principal investigators.

1 Sep 2004

Scientists to tackle the most common cause of diarrhoea world-wide with DNA sequencing

Returning holidaymakers may be comforted to know that travellers' diarrhoea could be a thing of the past. Scientists at the University of Birmingham's Medical School are set to sequence the DNA of the bacterium: this will identify causes of illness and point to better cures.

31 Aug 2004

Epimmune presents SIV vaccine study data showing control of virus despite the presence of viral mutations

Epimmune today presented preliminary data from its ongoing SIV rhesus macaque vaccine study at the AIDS Vaccine 2004 conference in Lausanne, Switzerland.

31 Aug 2004

Major trends in AIDS research that the different research teams throughout the world are pursuing

The science will be presented during the conference which is taking place in Lausanne until September 1, 2004. The advances in fundamental research, notably through a better understanding of the complex processes of immune defence, HIV and the functioning of vaccines, promote the genesis and development of new vaccine candidates.

30 Aug 2004

Interim data from human clinical trials of two AIDS vaccine candidates, named DNA.HIVA and MVA.HIVA

The interim data, from 205 volunteers in clinical trials in Kenya, Uganda and the United Kingdom, show that DNA.HIVA and MVA.HIVA are generally safe and well tolerated. However, the candidates’ ability to elicit an anti-HIV cell-mediated immune response is poor, using currently accepted measures of immune response.

30 Aug 2004

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