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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).

ATP1A3 gene mutations responsible for alternating hemiplegia of childhood

Alternating hemiplegia of childhood (AHC) is a rare disorder that usually begins in infancy, with intermittent episodes of paralysis and stiffness, first affecting one side of the body, then the other. Symptoms mysteriously appear and disappear, again and again, and affected children often experience dozens of episodes per week. As they get older, children fall progressively behind their peers in both intellectual abilities and motor skills, and more than half develop epilepsy.

31 Jul 2012

HPV co-testing prospect for HIV-infected women

The risk for cervical precancer and cancer is similar in HIV-infected and HIV-uninfected women with normal cervical cytology and no evidence of oncogenic human papillomavirus infection, research shows.

30 Jul 2012

Conception plans miscarry with sperm DNA damage

Sperm with damaged DNA are more likely to cause spontaneous pregnancy loss, report researchers.

30 Jul 2012

Bruker introduces high-resolution microscope for research in biological dynamics

At the Microscopy & Microanalysis (M&M) 2012 Annual Meeting, Bruker today announced the Dimension FastScan Bio™ Atomic Force Microscope (AFM), which enables high-resolution microscopy research in biological dynamics.

From Bruker Nano Surfaces and Metrology 30 Jul 2012

Antioxidants and pancreatic cancer risk: an interview with Dr Andrew Hart

The antioxidants that we mainly looked at were selenium, vitamin C and vitamin E. They are chemicals which inactivate pro-oxidants or free radicals. Smoking and normal metabolism can lead to the production of free radicals.

30 Jul 2012

MCW, Transgenomic partner to offer next-generation genetic testing services

Transgenomic, Inc. and the Medical College of Wisconsin today announced a collaboration agreement under which Transgenomic will offer next-generation genetic testing services performed at the MCW Clinical Sequencing Program. These services will initially include Transgenomic's NuclearMitome Test for mitochondrial disorders.

30 Jul 2012

Roofers have higher PAH blood-levels after 6-hour shift

Roofers and road construction workers who use hot asphalt are exposed to high levels of polycyclic aromatic hydrocarbons (PAHs). A University of Colorado Cancer Center study published this week in the British Medical Journal Open shows that roofers have higher PAH blood-levels after a shift than before and that these high levels of PAHs are linked with increased rates of DNA damage, and potentially with higher cancer risk.

28 Jul 2012

Vaccine complex delivered safely by piggybacking onto 3D DNA nanostructures

In a quest to make safer and more effective vaccines, scientists at the Biodesign Institute- at Arizona State University have turned to a promising field called DNA nanotechnology to make an entirely new class of synthetic vaccines.

27 Jul 2012

Bone marrow transplant eradicates traces of HIV in men

Two men with longstanding HIV infections no longer have detectable HIV in their blood cells following bone marrow transplants. The virus was easily detected in blood lymphocytes of both men prior to their transplants but became undetectable by eight months post-transplant. The men, who were treated at Brigham and Women's Hospital (BWH), have remained on anti-retroviral therapy.

27 Jul 2012

Fusion of FGFR and TACC gene leads to glioblastoma

Researchers at Columbia University Medical Center (CUMC) have discovered that some cases of glioblastoma, the most common and aggressive form of primary brain cancer, are caused by the fusion of two adjacent genes.

26 Jul 2012

AHAF announces glaucoma and macular degeneration research grants

The American Health Assistance Foundation, a nonprofit organization with a history of funding breakthrough research on age-related vision diseases, announced today that it has awarded 21 new grants totaling $2.1 million to scientists worldwide who are studying glaucoma and macular degeneration. The two conditions are the leading causes of irreversible blindness in the world.

26 Jul 2012

Exact Sciences reports total revenues of $1.0 million for second quarter 2012

Exact Sciences Corp. today announced its financial results for the quarter ended June 30, 2012.

25 Jul 2012

NIH grants aim at creating 3-D tissue chips to help identify drug safety signals

Seventeen National Institutes of Health grants are aimed at creating 3-D chips with living cells and tissues that accurately model the structure and function of human organs such as the lung, liver and heart. Once developed, these tissue chips will be tested with compounds known to be safe or toxic in humans to help identify the most reliable drug safety signals - ultimately advancing research to help predict the safety of potential drugs in a faster, more cost-effective way.

25 Jul 2012

Rutgers cell biologist to receive Presidential Early Career Award for Scientists and Engineers

Fewer than 100 researchers nationwide are chosen each year to receive the Presidential Early Career Award for Scientists and Engineers (PECASE), and this year Dr. Nihal Altan-Bonnet is one of the 96 to receive this honor.

25 Jul 2012

Merck, Chimerix sign license agreement for CMX157 to treat HIV infection

Chimerix, Inc. today announced the execution of a license agreement granting Merck, known as MSD outside the United States and Canada, exclusive worldwide rights to CMX157, Chimerix's novel lipid acyclic nucleoside phosphonate currently being evaluated to treat HIV infection.

24 Jul 2012

Neogen fourth quarter revenues increase 11.4% to $48,545,000

Neogen Corporation announced today that its revenues for the fourth quarter of its FY 2012, which ended May 31, increased 11.4% from the previous year's comparable quarter to $48,545,000. Net income for the fiscal year's final quarter was $0.25 per share, the same as the prior year's fourth quarter of $0.25 per share.

24 Jul 2012

OncoSec announces data from two Phase III trials of OMS ElectroChemotherapy for SCCHN

OncoSec Medical Inc., a company developing the advanced-stage OncoSec Medical System (OMS) ElectroOncology therapies to treat solid tumors, announced data from an interim analysis of two randomized Phase III clinical trials, HNBE-01 and HNBE-02, using electrochemotherapy to treat locally recurrent and second primary squamous cell carcinoma of the head and neck.

24 Jul 2012

UV induction of melanin is directly involved in melanoma formation

A new study conducted by GW School of Medicine and Health Sciences (SMHS) researchers Edward C. De Fabo, Ph.D., Frances P. Noonan, Ph.D., and Anastas Popratiloff, M.D., Ph.D., has been published in the journal Nature Communications. Their paper, entitled "Melanoma induction by ultraviolet A but not ultraviolet B radiation requires melanin pigment," was published in June 2012.

24 Jul 2012

PAMAM G-3 actually prevents activation of the process that leads to thrombosis

A compound that mops up debris of damaged cells from the bloodstream may be the first in a new class of drugs designed to address one of medicine's most difficult challenges -- stopping the formation of blood clots without triggering equally threatening bleeding.

24 Jul 2012

Scientists demonstrate link between cancer and faulty differentiation of stem cells

Stem cells hold great promise for the medicine of the future, but they can also be a cause of disease. When these self-renewing, unspecialized cells fail to differentiate into diverse cell types, they can start dividing uncontrollably, leading to cancer. Already several decades ago, Weizmann Institute scientists were among the first to demonstrate the link between cancer and the faulty differentiation of stem cells. Now a new Weizmann Institute-led study, published in Molecular Cell, reveals a potential molecular mechanism behind this link.

24 Jul 2012