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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).

GRK5 polymorphism that inhibits beta-adrenergic receptor signaling is protective in heart failure

About 40 percent of African-Americans have a genetic variant that can protect them after heart failure and prolong their lives, according to research conducted at Washington University School of Medicine in St. Louis and collaborating institutions.

20 Apr 2008

Hypertension all about what you eat and drink

Scientific research on human metabolism based on people from around the world has revealed compounds in urine indicate surprising differences affecting blood pressure.

20 Apr 2008

Mature B cells reprogrammed to stem-cell-like state

Fully mature, differentiated B cells can be reprogrammed to an embryonic-stem-cell-like state, without the use of an egg, according to a study published in the April 18 issue of Cell.

18 Apr 2008

Inherited cancer gene mutation more common than formerly believed

A gene mutation responsible for the most common form of inherited colon cancer is older and more common than formerly believed, according to a recent study.

17 Apr 2008

Yeast cells used to screen for potential Lou Gehrig's disease drugs

Researchers from the University of Pennsylvania School of Medicine are developing a novel approach to screen for drugs to combat neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS), or Lou Gehrig's disease, using yeast cells.

17 Apr 2008

Direct reprogramming of terminally differentiated mature B lymphocytes to pluripotency

Fully mature, differentiated B cells can be reprogrammed to an embryonic-stem-cell-like state, without the use of an egg according to a study published in the April 18 issue of Cell.

17 Apr 2008

New type of drug shrinks primary breast cancer tumours significantly in just six weeks

A drug that targets the cell surface receptors that play an important role in many types of cancer can bring about significant tumour regression in breast cancer after only six weeks of use, a scientist told the 6th European Breast Cancer Conference (EBCC-6) (Thursday 17 April).

17 Apr 2008

Discovery of critical detail of cellular defense against genetic mistakes

Researchers are closing in on a completed diagram of how human cells protect themselves against constant genetic mistakes that contribute to most diseases, according to a study to be published in the April 18 edition of the journal Cell.

17 Apr 2008

New insight into the pathogenesis of neurodegeneration in Ataxia telangiectasia

An upcoming paper from Dr. David Wassarman (University of Wisconsin School of Medicine and Public Health) in the May 1 issue of G&D lends new insight into the pathogenesis of neurodegeneration in Ataxia telangiectasia.

15 Apr 2008

Global Alliance for Pharmacogenomics

Leaders at the National Institutes of Health and the Center for Genomic Medicine in Japan have signed a letter of intent creating a Global Alliance for Pharmacogenomics.

15 Apr 2008

Study finds smoking related to subset of colorectal cancers

Smoking puts older women at significant risk for loss of DNA repair proteins that are critical for defending against development of some colorectal cancers, according to research from a team led by Mayo Clinic scientists.

13 Apr 2008

Discovery of small molecule that disrupts Ewing's sarcoma oncogene

Researchers at Georgetown University Medical Center have found a small molecule they say can block the action of the oncogene that causes Ewing's sarcoma, a rare cancer found in children and young adults.

13 Apr 2008

What we eat and drink affects our risk of cancer

A healthy diet and lifestyle protect against a wide range of diseases, and new research presented at the American Association for Cancer Research 2008 Annual Meeting, April 12-16, shows that cancer is no exception.

13 Apr 2008

The good and bad side of anti-cancer compounds

Compounds known as "HDAC inhibitors" exhibit cancer-killing activities in cultured cells.

11 Apr 2008

Stem cells and cancer: cancer pathways that also control the adult stem cell population

Speaking at the UK National Stem Cell Network Annual Science Meeting in Edinburgh, Professor Alan Clarke from Cardiff University described his work to investigate a mechanism that normally drives adult stem cells to repair the intestine.

11 Apr 2008

New strategy rapidly describes outbreak strains with next-generation DNA sequencing

In the event of an outbreak or a bioterrorist attack, rapid identification of the genetic changes responsible for virulence or drug resistance is essential to mounting an effective response.

11 Apr 2008

Gene linked to inherited blood biomarker associated with asthma risk

Risk for developing asthma is linked to variants in a gene called CHI3L1, which can be measured by checking levels of an inherited blood protein regulated by that gene, according to new research sponsored by the National Heart, Lung, and Blood Institute (NHLBI) of the National Institutes of Health.

11 Apr 2008