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).

Scientists lift lid on genetics of coronary artery disease

Scientists have moved a step closer to understanding how our genetic make-up can lead us to develop heart disease and to predicting who is most at risk.

19 Jul 2007

Jefferson scientist shares patent for DNA analysis

A basic scientist in the Department of Surgery at Jefferson Medical College and the Kimmel Cancer Center at Jefferson has shared a patent on what may someday be a ubiquitous tool in DNA analysis.

19 Jul 2007

Discovery of gene variant that increases risk for Crohn's disease

Pediatrics researchers have identified a gene variant that raises a child's risk of Crohn's disease, a chronic and painful condition attributed to inflammation of the gastrointestinal tract.

19 Jul 2007

Plumber protein uses different tools to turn on genes

St. Jude investigators have discovered how a single molecular "on switch" triggers gene activity that might cause effects ranging from learning and memory capabilities to glucose production in the liver.

18 Jul 2007

Genetic variation linked to premenstrual depression

A specific genetic variation may be tied to an increased risk for severe premenstrual depression, scientists at the University of North Carolina at Chapel Hill and the National Institute of Mental Health have found.

18 Jul 2007

New method for sequencing both chromosomes of an organism

The statistical method is significant because when researchers announce they have sequenced an organism's genome, they really mean that they have created a mosaic of two chromosomes, said USC computational biologist Lei Li.

18 Jul 2007

Orange juice healthy for diabetics

Orange juice, despite its high caloric load of sugars, appears to be a healthy food for diabetics due to its mother lode of flavonoids, a study by endocrinologists at the University at Buffalo has shown.

18 Jul 2007

Lab-grown disease-free mosquito

A decade ago, scientists announced the ability to introduce foreign genes into the mosquito genome.

18 Jul 2007

DNA analysis of Egyptian Pharaoh

Preliminary results from DNA tests carried out on a mummy believed to be Queen Hatshepsut is expected to support the claim by Egyptian authorities that the remains are indeed those of Egypt's most powerful female ruler.

From The University of Manchester 17 Jul 2007

A challenge to the ancient origin of SIVagm based on African Green Monkey mitochondrial genomes

Monkey viruses related to HIV may have swept across Africa more recently than previously thought, according to new research from The University of Arizona in Tucson.

17 Jul 2007

New hope for insulin dependent diabetes cure

A diagnosis of type I diabetes means a life sentence of medical follow-up.

17 Jul 2007

Gene detectives discover culprit for type 1 diabetes

Researchers at the Children's Hospital of Philadelphia and McGill University in Montreal have discovered a gene they believe is the culprit in a person developing type 1 diabetes.

16 Jul 2007

New genomics-based technology

Bruce S. Gillis, M.D., M.P.H., a medical toxicologist and CEO of the research group, The Cytokine Institute, will present a tutorial on a new genomics-based technology, msds1(TM).

16 Jul 2007

New gene found for type 1 diabetes in children

Pediatrics researchers at The Children's Hospital of Philadelphia and McGill University in Montreal have identified a gene variant that raises a child's risk for type 1 diabetes, formerly called juvenile diabetes.

16 Jul 2007

A suntan is the body's best effort to fend off ultraviolet light

For years, the official word on tanning has been … don't. Health organizations have driven home the message that the sun exposure needed to get a tan increases your chances of getting skin cancer.

16 Jul 2007

Chromosome glue repairs damaged DNA

When a strand of DNA breaks in the body's cells, it normally does not take long until it has been repaired.

16 Jul 2007

Hope for cure for insulin-dependent diabetes

A diagnosis of type I diabetes means a life sentence of medical follow-up. While treatments have become simpler and less restrictive in recent years, they are still a burden, especially for young patients.

16 Jul 2007

DNA' s double helix shape explained

Researchers at Duke University's Pratt School of Engineering have uncovered a missing link in scientists' understanding of the physical forces that give DNA its famous double helix shape.

13 Jul 2007

Breakthough in understanding of how mutations occur in genes

For the first time, it can now be shown what enzyme copies the genetic make-up of cells.

13 Jul 2007

Discovery of one important function of junk DNA

Scientists have only recently begun to speculate that what's referred to as junk DNA , the 96 percent of the human genome that doesn't encode for proteins and previously seemed to have no useful purpose , is present in the genome for an important reason.

13 Jul 2007