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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).

HDAC2 enzyme could be a potential target for new Alzheimer's drugs

MIT neuroscientists have shown that an enzyme overproduced in the brains of Alzheimer's patients creates a blockade that shuts off genes necessary to form new memories. Furthermore, by inhibiting that enzyme in mice, the researchers were able to reverse Alzheimer's symptoms.

1 Mar 2012

HPV and smear tests offer more effective approach for cervical screening

Testing for the human papillomavirus (HPV) - a virus most women will encounter at some point in their lives - followed by a smear test if they are HPV positive, provides the most effective approach for cervical screening, new research shows today.

1 Mar 2012

WUSM to study children with weakened immune systems

Not all viruses make us sick. But which ones are friends and which ones are foes? Researchers at Washington University School of Medicine in St. Louis have received a five-year, $3.3 million grant to study children with weakened immune systems to identify the viruses that make children sick.

29 Feb 2012

Scientists demonstrate how immortal flatworm overcomes aging process

Researchers from The University of Nottingham have demonstrated how a species of flatworm overcomes the ageing process to be potentially immortal.

28 Feb 2012

Childhood adversity may lead to epigenetic changes in glucocorticoid receptor gene

In a look at how major stressors during childhood can change a person's biological risk for psychiatric disorders, researchers at Butler Hospital have discovered a genetic alteration at the root of the association.

28 Feb 2012

Aurora-A protein blocks proper functioning of tumor-suppressor p73

A protein abundantly found in treatment-resistant cancers holds an important tumor-suppressor out of the cell nucleus, where it would normally detect DNA damage and force defective cells to kill themselves, a team of scientists reports in the current Cancer Cell.

28 Feb 2012

New RNA interference method holds promise for cancer, other diseases

For the past decade, scientists have been pursuing cancer treatments based on RNA interference - a phenomenon that offers a way to shut off malfunctioning genes with short snippets of RNA. However, one huge challenge remains: finding a way to efficiently deliver the RNA.

27 Feb 2012

Researchers identify elusive gene responsible for TAR syndrome

Researchers have identified an elusive gene responsible for Thrombocytopenia with Absent Radii (TAR), a rare inherited blood and skeletal disorder. As a result, this research is now being transformed into a medical test that allows prenatal diagnosis and genetic counselling in affected families.

27 Feb 2012

New technique effective in jumpstarting defective immune systems against many diseases

In a study published in Nature Medicine, Loyola researchers report on a promising new technique that potentially could turn immune system killer T cells into more effective weapons against infections and possibly cancer.

26 Feb 2012

Fetus protecting enzyme also prevents autoimmune diseases

Cells that die naturally generate a lot of internal debris that can trigger the immune system to attack the body, leading to diseases such as lupus.

24 Feb 2012

Study evaluates how environmental triggers might alter epigenetics of CFS

A University of Toronto Scarborough (UTSC) researcher is examining how environmental triggers might alter gene function in people with Chronic Fatigue Syndrome. The research could lead to better insights into the disease and eventually to new treatments.

24 Feb 2012

UA researchers identify the likely culprit of epilepsy

Only 10 years ago, deciphering the genetic information from one individual in a matter of weeks to find a certain disease-causing genetic mutation would have been written off as science fiction. It was the time of the Human Genome Project, and it had taken armies of sequencing robots working around the clock for almost a decade to unravel the complete sequence of the human genetic code - referred to as the genome - by churning out the DNA alphabet letter by letter.

24 Feb 2012

Scientists identify specific mechanisms by which vitamin D inhibits inflammation

Researchers at National Jewish Health have discovered specific molecular and signaling events by which vitamin D inhibits inflammation. In their experiments, they showed that low levels of Vitamin D, comparable to levels found in millions of people, failed to inhibit the inflammatory cascade, while levels considered adequate did inhibit inflammatory signaling.

24 Feb 2012

Scientists employ metagenomics to identify new possible antibiotics against MRSA

Scientists are reporting use of a new technology for sifting through the world's largest remaining pool of potential antibiotics to discover two new antibiotics that work against deadly resistant microbes, including the "super bugs" known as MRSA. Their report appears in the Journal of the American Chemical Society.

23 Feb 2012

Micronutrients affect methylation, linked to changes in the immune system

The offspring of women who were given micronutrient supplements (minerals needed in small quantities, such as iron, iodine and vitamin A) before they became pregnant had gene modifications at birth as well as when they were tested at 9 months.

23 Feb 2012

Inven2, OGT enter license agreement for 12 colorectal cancer biomarkers

Oxford Gene Technology (OGT), provider of innovative clinical genetics and diagnostic solutions to advance molecular medicine, announced today that it has entered into an exclusive licensing agreement with Inven2, the technology transfer office at Oslo University Hospital (OUS) and University of Oslo (UiO), for 12 highly promising colorectal cancer tissue biomarkers.

From Oxford Gene Technology 23 Feb 2012

Roche grants in vitro diagnostics product license for real-time PCR technology to LTC

Roche and Life Technologies Corporation announced today that they have entered into two license agreements to allow LTC to expand its PCR offerings for diagnostics applications.

23 Feb 2012

Study on role of genetics and environmental influences on criminal and antisocial behavior

An assistant professor at Sam Houston State University, College of Criminal Justice is working to unlock the mysteries surrounding the role that genetics and environmental influences play on criminal and antisocial behavior.

22 Feb 2012

Researchers discover mechanism of thermostat protein

Johns Hopkins and National Taiwan University researchers have discovered more details about how an energy sensing "thermostat" protein determines whether cells will store or use their energy reserves.

22 Feb 2012

DANSR/FORTE assay more effective in diagnosing Edwards and Down syndrome

Using a noninvasive test on maternal blood that deploys a novel biochemical assay and a new algorithm for analysis, scientists can detect, with a high degree of accuracy, the risk that a fetus has the chromosomal abnormalities that cause Down syndrome and a genetic disorder known as Edwards syndrome.

22 Feb 2012