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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).

Key details of how TRF2 protein performs crucial chromosome-protecting function

We take it for granted that our chromosomes won't stick together, yet this kind of cellular disaster would happen constantly were it not for a protein called TRF2. Now, scientists at The Scripps Research Institute (TSRI) have discovered key details of how TRF2 performs this crucial chromosome-protecting function.

7 Feb 2013

Liver gene found to regulate cholesterol and fat blood levels

Researchers have identified a microRNA liver gene, miR-27b, which regulates lipid (cholesterol or fat) levels in the blood. This regulator gene controls multiple genes involved in dyslipidemia—abnormal blood cholesterol levels that can contribute to heart disease.

7 Feb 2013

Migraine, epilepsy and genetics: an interview with Dr. Melodie Winawer

This work is the product of an extraordinary consortium called the Epilepsy Phenome/Genome project (EPGP). It is a consortium of 27 centres in the U.S. and internationally with several hundred physicians and staff who have worked together to enrol more than 4000 patients with epilepsy and their family members.

7 Feb 2013

Sangamo BioSciences fourth quarter revenues increase to $8.9 million

Sangamo BioSciences, Inc. today reported fourth quarter and full year 2012 financial results and accomplishments.

7 Feb 2013

New method can determine seriousness of cancer prognosis with 80% certainty

The number of incorrect cancer prognoses can be halved with computerised image analysis. In three years time, the method can be used on patients with bowel cancer, ovarian cancer and prostate cancer.

6 Feb 2013

Genpact announces acquisition of JAWOOD

Genpact Limited, a global leader in business process management and technology services, today announces that it has acquired JAWOOD, a leading provider of business services to the healthcare payer industry.

6 Feb 2013

Paternal obesity may alter genetic mechanisms in next generations

A father's obesity is one factor that may influence his children's health and potentially raise their risk for diseases like cancer, according to new research from Duke Medicine.

6 Feb 2013

Non-coding RNA MALAT1 influences lung cancer metastasis

The vast majority - approximately 80 percent - of our DNA does not code for proteins, yet it gets transcribed into RNA. These RNA molecules are called non-coding and fulfill multiple tasks in the cell. Alongside a well-studied group of small RNAs, there is also a class of so-called long non-coding RNAs consisting of more than 200 nucleotides.

6 Feb 2013

U.S. should issue formal ban on using vaccination campaigns as cover for intelligence operations

In an opinion piece in Bloomberg Businessweek's "Small World" blog, Charles Kenny, a fellow at the Center for Global Development and the New America Foundation, examines the effects of "a fake polio vaccination drive organized by the CIA in an effort to collect DNA from [Osama] bin Laden's family" on polio immunization efforts in Pakistan.

5 Feb 2013

DCC receptor plays key role in regulating brain plasticity

Our ability to learn and form new memories is fully dependent on the brain's ability to be plastic - that is to change and adapt according to new experiences and environments. A new study from the Montreal Neurological Institute - The Neuro, McGill University, reveals that DCC, the receptor for a crucial protein in the nervous system known as netrin, plays a key role in regulating the plasticity of nerve cell connections in the brain.

5 Feb 2013

An Introduction to the LV200 Bioluminescence Microscope

News-Medical speaks to Robert Schmalzigaug to explore the field of bioluminescence imaging and the applications of the LV200 microscope.

From Evident Corporation - Life Sciences 5 Feb 2013

Scientists identify specific cellular events that appear key to lupus

A team led by scientists at The Scripps Research Institute (TSRI) has identified specific cellular events that appear key to lupus, a debilitating autoimmune disease that afflicts tens of millions of people worldwide. The findings suggest that blocking this pathway in lupus-triggering cells could be a potent weapon against the disease.

5 Feb 2013

Researchers identify gene variants that influence lifespan

By broadly comparing the DNA of children to that of elderly people, gene researchers have identified gene variants that influence lifespan, either by raising disease risk or by providing protection from disease.

5 Feb 2013

Hope against dangerous form of acute lymphoblastic leukemia

After an intensive three-year hunt through the genome, medical researchers have pinpointed mutations that leads to drug resistance and relapse in the most common type of childhood cancer-the first time anyone has linked the disease's reemergence to specific genetic anomalies.

4 Feb 2013

Cells lose ability to defend against transposons as they age

Even in our DNA there is no refuge from rogues that prey on the elderly. Parasitic strands of genetic material called transposable elements - transposons - lurk in our chromosomes, poised to wreak genomic havoc. Cells have evolved ways to defend themselves, but in a new study, Brown University researchers describe how cells lose this ability as they age, possibly resulting in a decline in their function and health.

4 Feb 2013

Investigators use genome analysis to eliminate lifetime drug prescription in two children

Using genome-wide analysis, investigators at the Sainte-Justine University Hospital Research Center and the University of Montreal have potentially eliminated a lifetime drug prescription that two children with a previously unknown type of adrenal insufficiency had been receiving for 14 years.

4 Feb 2013

Presentation examines role of genes behind autism disorders

Autism spectrum disorders affect nearly 1 in 88 children, with symptoms ranging from mild personality traits to severe intellectual disability and seizures. Understanding the altered genetic pathways is critical for diagnosis and treatment.

4 Feb 2013

Researchers create high-resolution map of gene regulatory elements in the brain

Future research into the underlying causes of neurological disorders such as autism, epilepsy and schizophrenia, should greatly benefit from a first-of-its-kind atlas of gene-enhancers in the cerebrum (telencephalon).

2 Feb 2013

Study shows how female steroid hormones can make changes to the breast genetic material

Melbourne scientists have discovered how female steroid hormones can make dramatic changes to the genetic material in breast cells, changes that could potentially lead to breast cancer.

2 Feb 2013

Scientists discover new evidence for role of epigenetic changes on premature aging diseases

Scientists at the Bellvitge Biomedical Research Institute in Barcelona, Spain have found new evidence for the role of epigenetic changes (those heritable alterations in gene expression caused by mechanisms other than changes in DNA sequence) on premature aging diseases.

1 Feb 2013