Genome News and Research

RSS

APOBEC3B enzyme plays a key role in breast cancer

Researchers at the University of Minnesota have uncovered a human enzyme responsible for causing DNA mutations found in the majority of breast cancers. The discovery of this enzyme - called APOBEC3B - may change the way breast cancer is diagnosed and treated.

10 Feb 2013

Scientists discover recurring pattern of more than 13,000 epigenetic alterations in young tumours

Tumourigenesis is driven by genetic alterations and by changes in the epigenome, for instance by the addition of methyl groups to cytosine bases in the DNA. A deeper understanding of the interaction between the genetic and epigenetic mechanisms is critical for the selection of tumour biomarkers and for the future development of therapies. Human tumour specimens and cell lines however contain a plethora of genetic and epigenetic changes, which complicate data analysis.

10 Feb 2013

Highlights for Feb. 2013 issue of Genetics journal

Listed below are the selected highlights for the February 2013 issue of the Genetics Society of America's journal, Genetics.

10 Feb 2013

LPA genetic variant increases risk of heart valve calcification

Researchers have found a genetic variant that doubles the likelihood that people will have calcium deposits on their aortic valve. Such calcification, if it becomes severe, can cause narrowing or a blockage of the aortic valve, a condition called aortic stenosis.

9 Feb 2013

Drugs that target retromer pathway could help prevent or treat Parkinson's

Columbia University Medical Center (CUMC) researchers have identified a protein trafficking defect within brain cells that may underlie common non-familial forms of Parkinson's disease.

9 Feb 2013

CtBP may play a key role in aggressive forms of breast cancer

A protein associated with conditions of metabolic imbalance, such as diabetes and obesity, may play a role in the development of aggressive forms of breast cancer, according to new findings by researchers at the National Cancer Institute (NCI), part of the National Institutes of Health, and their colleagues.

9 Feb 2013

Investigators discover two new genes associated with severe early-onset disorders of heart rhythm

A team led by Vanderbilt University investigators has discovered two new genes - both coding for the signaling protein calmodulin - associated with severe early-onset disorders of heart rhythm.

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

Researchers assess complete landscape of kinome expression in cancer

When it comes to gene sequencing and personalized medicine for cancer, spotting an aberrant kinase is a home run. The proteins are relatively easy to target with drugs and plenty of kinase inhibitors already exist.

6 Feb 2013

Accumulation of passenger mutations can slow or even halt tumor growth

A typical cancer cell has thousands of mutations scattered throughout its genome and hundreds of mutated genes. However, only a handful of those genes, known as drivers, are responsible for cancerous traits such as uncontrolled growth. Cancer biologists have largely ignored the other mutations, believing they had little or no impact on cancer progression.

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

Scientists track evolution of antibiotic resistance using automated device

With the discovery of antibiotics, medicine acquired power on a scale never before possible to protect health, save lives, and reduce suffering caused by certain bacteria. But the power of antibiotics is now under siege because some virulent infections no longer respond to antibiotic drugs.

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

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

Scientists identify specific p53 pocket that can be targeted by cancer-fighting drugs

UC Irvine biologists, chemists and computer scientists have identified an elusive pocket on the surface of the p53 protein that can be targeted by cancer-fighting drugs. The finding heralds a new treatment approach, as mutant forms of this protein are implicated in nearly 40 percent of diagnosed cases of cancer, which kills more than half a million Americans each year.

1 Feb 2013