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New technology analyzes breast cancer tumours to determine best treatment option

In a study published by Nature Biotechnology online on February 1, 2009, Mount Sinai Hospital researchers have unveiled a new technology tool that analyzes breast cancer tumours to determine a patient's best treatment options.

2 Feb 2009

You are what your parents ate!

According to Australian scientists we are what our parents ate - scientists at the Baker IDI Heart and Diabetes Institute say that very specific molecular events occur after the consumption of food high in glucose, causing chemical changes to our genetic controls.

2 Feb 2009

Research finds more than 100 gene variations linked with response to leukemia treatment

Scientists from St. Jude Children's Research Hospital and the Children's Oncology Group (COG) have discovered in children with acute lymphoblastic leukemia (ALL) scores of inherited genetic variations that clinicians might be able to use as guideposts for designing more effective chemotherapy for this cancer.

29 Jan 2009

Genetic variations associated with treatment response for acute lymphoblastic leukemia

Children with acute lymphoblastic leukemia with certain genetic variations can have a different response to anti-cancer treatment than other patients, according to a study in the January 28 issue of JAMA, the Journal of the American Medical Association.

29 Jan 2009

Rare amino acid helps establish how proteins evolve

Three billion years ago, a "new" amino acid was added to the alphabet of 20 that commonly make up proteins in organisms today.

29 Jan 2009

New understanding of genetic basis of psoriasis

Two international teams of researchers have made significant gains in understanding the genetic basis of psoriasis, a chronic skin condition that can be debilitating in some patients.

27 Jan 2009

New method captures microRNAs before they disappear

One of the tiniest entities in the human genome - are great escape artists.

27 Jan 2009

Scientists discover new class of small RNAs

Researchers at Cold Spring Harbor Laboratory (CSHL) announced today the discovery of a new class of small RNAs. At the same time, they reported that their discovery suggests the presence of a strikingly novel biochemical pathway for RNA processing in which these and possibly other small RNAs are produced.

27 Jan 2009

Compromised skin barrier function plays a role in the development of psoriasis

Researchers at the Genome Institute of Singapore (GIS) and the Anhui Medical University, China, have identified genes that play an important role in the development of psoriasis, a common chronic skin disease.

27 Jan 2009

Although our genetics differ significantly, we all look alike...

The genetic variation within a species can be significant, but very little of that variation results in clear differences in morphology or other phenotypes.

27 Jan 2009

Roche NimbleGen microarray technology enables highest-resolution map of human genome copy number variation

Roche NimbleGen's CGH microarray platform was used to generate the highest-resolution map of human genome copy number variation.

23 Jan 2009

Genetic interactions are the key to understanding complex traits

In recent years, genetic studies have uncovered hundreds of DNA variations linked to common diseases, such as cancer or diabetes, raising the prospect that scientists can gauge disease risk based on information in an individual's genome.

23 Jan 2009

More scientific evidence supporting Darwinian views of evolution

Studies at the University of Pennsylvania School of Medicine on brain electrical signaling offer a fresh perspective on vertebrate evolution, provide additional evidence supporting Darwinian views of evolution, and may also lead to more effective treatment of epileptic seizures in infants.

21 Jan 2009

Large DNA stretches, not single genes, shut off as cells mature

Experiments at Johns Hopkins have found that the gradual maturing of embryonic cells into cells as varied as brain, liver and immune system cells is apparently due to the shut off of several genes at once rather than in individual smatterings as previous studies have implied.

19 Jan 2009

Gene switch sites found mainly on 'shores,' not just 'islands' of the human genome

Scientists who study how human chemistry can permanently turn off genes have typically focused on small islands of DNA believed to contain most of the chemical alterations involved in those switches.

19 Jan 2009

Three new genetic variations that increase the risk of obesity

The gene variant most strongly associated with childhood obesity and adult morbid obesity in the study is located near the PTER gene, the function of which is not known. This variant is estimated to account for up to a third of all childhood obesity, and a fifth of all cases of adult obesity.

19 Jan 2009

Genetic variations in DNA repair patterns may increase risk of pancreatic cancer

Genetic variations in DNA repair patterns may increase risk of pancreatic cancer by as much as threefold or decrease it by as much as 77 percent, depending on the genes involved, according to a report published in the January 15, 2009, issue of Clinical Cancer Research, a journal of the American Association for Cancer Research.

19 Jan 2009

Defects in critical DNA repair genes may predict pancreatic cancer risk

Abnormalities in genes that repair mistakes in DNA replication may help identify people who are at high risk of developing pancreatic cancer, a research team from The University of Texas M. D. Anderson Cancer Center reports in the Jan. 15 issue of Clinical Cancer Research .

19 Jan 2009

Scientists explain genetic disease first discovered in Quebec 24 years ago

Scientists at the MUHC and McGill University have identified a gene essential for the uptake of vitamin B12 in human cells.

15 Jan 2009

Discovery of link between genetic defect on chromosome 15 and epilepsy

In a research published in the advanced online publication of the scientific magazine Nature Genetics, researchers have identified a genetic defect for common epilepsies on chromosome 15.

15 Jan 2009