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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).

Bartonella bacterium may also play a role in human arthritis

A bacterium historically associated with cat scratch fever and transmitted predominately by fleas may also play a role in human rheumatoid illnesses such as arthritis, according to new research from North Carolina State University.

24 Apr 2012

DSG's eCaseLink EDC chosen for Ariosa's Non-Invasive Chromosomal Examination of Trisomy study

Ariosa Diagnostics, a molecular diagnostics company focused on prenatal testing, has chosen to use DSG's eCaseLink EDC (electronic data capture) system for the NEXT (Non-Invasive Chromosomal Examination of Trisomy) study.

23 Apr 2012

RVX-208 molecule increases apolipoprotein A-I production

Resverlogix Corp. today announces the "Mechanism of Action" (MoA) by which RVX-208 increases apolipoprotein A-I (ApoA-I) production.

23 Apr 2012

IntegenX to accelerate commercialization of human DNA identification system with SV acquisition

IntegenX Inc., a privately held company that is a leader in the emerging field of rapid human DNA identification, today announced that it has acquired SV Corp, a wholly owned subsidiary of GE Healthcare Bio-Sciences. IntegenX will leverage SV Corp's products and intellectual property assets to expand its consumables offering and to accelerate the commercialization of its RapidHIT 200 Human DNA Identification System.

23 Apr 2012

OncoSec reports positive interim data from ElectroChemotherapy Phase IV head and neck cancer study

OncoSec Medical Inc., which is developing its advanced-stage OncoSec Medical System (OMS) ElectroOncology therapies to treat solid tumors, today announced positive interim analysis of data from 81 subjects in a Phase IV study of primary and locally recurrent squamous cell carcinoma of the head and neck (HNSCC) treated with OMS ElectroChemotherapy in Europe.

23 Apr 2012

Mod5 yeast prion contributes to cell survival under environmental stress

One of the greatest mysterious in cellular biology has been given a new twist thanks to findings reported in Science. Researchers at the RIKEN Brain Science Institute show that prions, proteins that transmit heritable information without DNA or RNA, can contribute to drug resistance and cellular adaptation. Their discovery of a yeast prion with these properties demonstrates the active role of the prion conversion in cellular fitness adaptation, providing new insights into the potentially broader function of prions in living organisms.

23 Apr 2012

Avocado oil protects against free radicals in mitochondria

Atmospheric oxygen facilitated the evolution and complexity of terrestrial organisms, including human beings, because it allowed nutrients to be used more efficiently by those organisms, which in turn were able to generate more energy. However, as we find out more about how oxygen molecules work inside the body, more attention is being paid to their not-so-good effects, and researchers are seeking ways to thwart them.

23 Apr 2012

Study shows how MRSA epidemics may emerge and spread at molecular level

National Institutes of Health (NIH) scientists and their colleagues in China have described a rapidly emerging Staphylococcus aureus gene, called sasX, which plays a pivotal role in establishing methicillin-resistant S. aureus (MRSA) epidemics in most of Asia.

23 Apr 2012

23andMe, Khan Academy partner to celebrate DNA Day

To celebrate DNA Day, Khan Academy, the world's online classroom, and 23andMe, a leading personal genetics company, are working together to promote the importance of genetics education. 23andMe's Genetics 101 and Human Prehistory 101 video series are now available on KhanAcademy.org.

21 Apr 2012

LifeMap Sciences, BioTime to acquire XenneX

BioTime, Inc. and its wholly owned subsidiary LifeMap Sciences today announced that they have signed a definitive agreement to acquire XenneX, Inc. through a merger of XenneX into LifeMap Sciences. The acquisition is expected to close within thirty days.

21 Apr 2012

Researchers enhance capabilities of solid-state nanopores

The latest advance in solid-state nanopore sensors - devices that are made with standard tools of the semiconductor industry yet can offer single-molecule sensitivity for label-free protein screening - expands their bag of tricks through bionanotechnology.

20 Apr 2012

Rare CARD14 gene mutations can lead to plaque psoriasis

Scientists led by Washington University School of Medicine in St. Louis have identified the first gene directly linked to the most common form of psoriasis, a chronic skin condition.

20 Apr 2012

EASL publishes new clinical practice guideline on ALD

EASL today announced the publication of a new clinical practice guideline (CPG) in the area of Alcoholic Liver Disease (ALD), bringing the number of CPGs published to date to eight.

19 Apr 2012

New studies on personalized lung cancer treatment presented at 3rd ELCC

Several new studies that may help doctors tailor lung cancer treatment to the characteristics of individual patients and of their tumors are being presented at the 3rd European Lung Cancer Conference in Geneva.

19 Apr 2012

GSK, Epizyme and Constellation to develop next generation of epigenetic drugs for cancer

Scientific insights that expand on the teachings of Mendel, Watson and Crick, and underpinnings of the Human Genome Project are moving drug companies along the path to development of new medicines based on deeper insights into how factors other than the genetic code influence health and disease. That's the topic of the cover story in the current edition of Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society (ACS), the world's largest scientific society.

19 Apr 2012

North American scientists to explore genetic markers for autism

A medical researcher at the University of Alberta is working with scientists from across North America to find out if there are genetic markers for autism. More than 15 scientists will examine DNA samples from children with autism and their infant siblings to see if the siblings are at high risk.

19 Apr 2012

Researchers extract structural information from triple helix DNA in gas phase

A team of researchers at the Institute for Research in Biomedicine (IRB Barcelona) and the Barcelona Supercomputing Center (BSC) have managed for the first time to extract trustworthy structural information from a triple helix DNA in gas phase, that is to say in conditions in which DNA is practically in a vacuum.

19 Apr 2012

Oral bacteria may cause problems in arthritis patients

The culprit behind a failed hip or knee replacements might be found in the mouth. DNA testing of bacteria from the fluid that lubricates hip and knee joints had bacteria with the same DNA as the plaque from patients with gum disease and in need of a joint replacement.

19 Apr 2012

Study explains why some people develop kidney stones and others do not

Kidney stones strike an estimated 1 million Americans each year, and those who have experienced the excruciating pain say it is among the worst known to man (or woman).

19 Apr 2012

BCCA, UBC scientists identify new breast cancer genes

Scientists at the BC Cancer Agency and University of British Columbia have identified new breast cancer genes that could change the way the disease is diagnosed and form the basis of next-generation treatments.

19 Apr 2012