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).

Researchers identify cell line that is resistant to retroviruses

Researchers at the University of Minnesota have identified a protein that enables viruses such as HIV to infect cells and spread through the body.

17 Oct 2006

Vaccine that protects mice against 1918 influenza virus developed

Federal scientists have developed a vaccine that protects mice against the killer 1918 influenza virus. They also have created a technique for identifying antibodies that neutralize this virus, a tool that could help contain future pandemic flu strains.

17 Oct 2006

Researchers identifiy how immune system contributes to nerve fiber damage caused by multiple sclerosis

Researchers have identified how the body's own immune system contributes to the nerve fiber damage caused by multiple sclerosis, a finding that can potentially aid earlier diagnosis and improved treatment for this chronic disease.

16 Oct 2006

DNA-based computer that could lead to faster West Nile virus detection

New technique detects signature of metastasizing melanoma with as few as 10 cancer cells present in blood sample.

16 Oct 2006

Co-delivery of drugs and DNA from cationic core-shell nanoparticles self-assembled from a biodegradable copolymer

Efforts to treat cancer using genes and other oligonucleotides, such as short interfering RNA (siRNA), that turn off the biochemical processes that trigger malignancies have been hindered by difficulties in delivering nucleic acids to tumors.

16 Oct 2006

A nanoplasmonic molecular ruler for measuring nuclease activity and DNA footprinting

The interactions between proteins and nucleic acids play a critical role in some of life’s most crucial biochemical processes, including gene expression and protein production, and some promising anticancer agents exert their effects by interfering with these interactions.

16 Oct 2006

Chikungunya adds to Dengue scare in India

The situation in the Indian city of Delhi, which is battling to control an outgreak of dengue fever now approaching epidemic proportions, has been exacerbated by an outbreak of another mosquito bourne disease, Chikungunya.

10 Oct 2006

FDA statement on foodborne E. coli O157:H7 outbreak in spinach

To date, 199 cases of illness due to E. coli O157:H7 infection have been reported to CDC, including 31 cases of Hemolytic Uremic Syndrome (HUS), 102 hospitalizations and three deaths.

8 Oct 2006

Six shot course gives two year protection from hay fever

An experimental vaccine is promising to prevent hay fever symptoms for at least two years, and this is after just six injections.

5 Oct 2006

Built-in blocker - drug and antidote in the same molecule

In cases of serious side effects or overdoses of medications, it can be vital to have a fast-acting antidote on hand.

2 Oct 2006

Major breakthrough could lead to improved recovery of the heart after heart attack or cardiac surgery

For the first time ever, researchers at the University of Bristol have been able to directly measure energy levels inside living heart cells, in real time, using the chemical that causes fireflies to light up.

21 Sep 2006

SUMO1 gene implicated in cleft lip and palate defects

Researchers supported by the National Institutes of Health report in the current issue of the journal Science that a much-studied gene called SUMO1, when under expressed, can cause cleft lip and palate, one of the world's most common birth defects.

21 Sep 2006

Insulin receptor stops progression of Alzheimer's disease

Stimulation of a receptor in the brain that controls insulin responses has been shown to halt or diminish the neurodegeneration of Alzheimer's disease, providing evidence that the disease can be treated in its early stages, according to a study by researchers at Rhode Island Hospital and Brown Medical School.

21 Sep 2006

Direct observations of DNA provides new insights into how genetic material is copied and repaired

"We can monitor the process directly, and that gives us a different perspective," said Roberto Galletto, a postdoctoral scholar at UC Davis and first author on a paper published Sept. 20 on the Web site of the journal Nature.

21 Sep 2006

Fat droplets play protective role inside cells

Too much body fat may be a bad thing, but there is increasing evidence that too little fat also may have some surprisingly negative consequences.

19 Sep 2006

NIH to map genomic changes of lung, brain, and ovarian cancers

It is estimated that 174,470 new cases of lung cancer will be diagnosed in the United States in 2006. Lung cancer is the major cause of cancer-related mortality in both men and women, with an estimated 162,460 deaths expected to occur in 2006.

13 Sep 2006

Study extends the number of antigenic peptides that can be produced from a single protein

Understanding medical research problems often relies on the direct, linear relationship between the sequence of a protein and the DNA encoding that protein. In fact, colinearity of DNA and protein sequences is thought to be a fundamental feature of the universal genetic code.

13 Sep 2006