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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).

Biological markers of narcolepsy

The first report to identify the biological markers of narcolepsy using gene expression in white blood cells finds that the MX2 gene, which is relevant to the immune system, is significantly less expressed in narcoleptics compared with normal subjects.

2 Aug 2007

Bipolar disorder phenome database

A novel, free, public online database opening this week should greatly speed efforts to find genes linked to increase risk of bipolar disorder.

1 Aug 2007

Xenomics issued European patent for Transrenal Nucleic Acid Technology for Prenatal Diagnostics

Xenomics, Inc. has announced the issuance of its first European patent "Methods for detection of nucleic acid sequences in urine", EP 1634966 A2 that covers use of its proprietary transrenal nucleic acid technology in the area of prenatal diagnostics and genetic testing.

1 Aug 2007

Discovery of pathway that controls cell size and division

Organisms precisely regulate cell size to ensure that daughter cells have sufficient cellular material to thrive or to create specific cell types: a tiny sperm versus a gargantuan egg for example.

1 Aug 2007

New risk genes for multiple sclerosis

Two new large-scale genomic studies have honed in on the main genetic pathway associated with multiple sclerosis (MS), while also uncovering new genetic variations in the disease and suggesting a possible link between MS and other autoimmune diseases.

1 Aug 2007

Genomics study provides insight into the evolution of unique human traits

Researchers from the University of Colorado Health Sciences Center, along with colleagues from Stanford University, report the results of a large-scale, genome-wide study to investigate gene copy number differences among ten primate species, including humans.

1 Aug 2007

Chromosomes responsible for a critical enzyme's activation during cell division

In a dividing cell, chromosomes interact with cellular scaffolding - called spindle microtubules - in order to move themselves to opposite ends of the cell, ensuring that both daughter cells receive an exact copy of their parent cell's genetic material.

1 Aug 2007

Moderate amounts of caffeine along with exercise can be good for your health

Regular exercise and little or no caffeine has become a popular lifestyle choice for many Americans.

1 Aug 2007

Directed nanoparticles deliver gene therapy

After binding DNA segments to tiny iron-containing spheres called nanoparticles, researchers have used magnetic fields to direct the nanoparticles into arterial muscle cells, where the DNA could have a therapeutic effect.

31 Jul 2007

Researchers genetically modify a plant to halt reproduction of HIV related virus

In a study that could lead to new ways to prevent infection by human immunodeficiency virus (HIV) and similar organisms, Purdue University researchers have been able to genetically modify a plant to halt reproduction of a related virus.

31 Jul 2007

A run to the coffee shop may prevent skin cancer

Researchers in the United States have discovered that the combination of daily exercise and a cup of coffee may help prevent skin cancer.

30 Jul 2007

Genome detectives discover culprits in multiple sclerosis

Genome detectives have done it again by revealing at least three genes which are implicated in the incurable nerve disorder Multiple Sclerosis (MS).

30 Jul 2007

Researchers watch bacteria and antibiotics at the atomic level

A new understanding of an enzyme important for the transfer of genetic information in bacteria may help scientists improve current antibiotics and also create antibiotics that are less vulnerable to resistance.

27 Jul 2007

Researchers track how a single molecule of RNA or DNA unwinds

The process by which genes are duplicated is mysterious and complex, involving a cast of characters with diverse talents and the ability to play well with others in extremely close quarters.

27 Jul 2007

Women more prone to brain damage from alcohol abuse than men

Alcoholism has traditionally been considered a male disease because there are many more alcoholic males than females.

27 Jul 2007

FDA statement on gene therapy trial

On July 24, 2007 the U.S. Food and Drug Administration (FDA) was informed by Targeted Genetics Corporation of Seattle about the death of a patient who received an investigational gene therapy product in a clinical trial for the treatment of active inflammatory arthritis.

27 Jul 2007

Scientits devise dimmer swith to regulate gene expression in mammal cells

Three Boston University biomedical engineers have created a genetic dimmer switch that can be used to turn on, shut off, or partially activate a gene's function. Professor James Collins, Professor Charles Cantor and doctoral candidate Tara Deans invented the switch, which can be tuned to produce large or small quantities of protein, or none at all.

27 Jul 2007