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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).

New insights into the diversity of Creutzfeldt-Jakob disease agents

Researchers from the United Kingdom and France have identified four separate biochemical subgroups in a selection of cases of Creutzfeldt-Jakob disease.

18 Mar 2008

Body mass index higher among bariatric surgery patients with 2 genetic variations

The combination of two obesity-related genetic variations may be associated with an increased body mass index (BMI) among severely obese patients undergoing bariatric weight loss surgery, according to a report in the March issue of Archives of Surgery.

18 Mar 2008

Gene network disrupted by obesity

According to new research an entire network of genes in the body is disrupted by overeating and this not only causes obesity, but also diabetes and heart disease.

17 Mar 2008

Better regulation is urgently needed for genetic tests

Better regulation is urgently needed for genetic tests, particularly those marketed directly to the public, argue researchers in this week's BMJ.

17 Mar 2008

How diabetes drives atherosclerosis

Researchers have discovered how diabetes, by driving inflammation and slowing blood flow, dramatically accelerates atherosclerosis, according to research to be published in the March 14 edition of the journal Circulation Research. Experts once believed that atherosclerosis, or hardening of the arteries, developed when too much cholesterol clogged arteries with fatty deposits called plaques.

14 Mar 2008

Obesity bottlenecks cellular power plant

The machinery responsible for energy production in fat cells is working poorly as a result of obesity.

13 Mar 2008

Genomics researchers fine-tune marker for common obesity gene

Genomics researchers, seeking to replicate another group's discovery of an important gene associated with obesity, have further refined the signal to a particular variant in DNA that may be more helpful in identifying this gene's role in obesity in various human populations worldwide.

13 Mar 2008

DNA detectives find genetic markers for lung cancers most likely to recur

Researchers at the Johns Hopkins Kimmel Cancer Center have uncovered clearly recognizable genetic alterations in tumors and tissue removed from patients with early-stage lung cancers that look like good predictors of which of these cancers are more likely to recur.

13 Mar 2008

New smarter technology for identifying human remains

A researcher from the Physical Anthropological Laboratory of the University of Granada has developed the most complete database today to identify human remains and bodies in advanced states of decomposition using 3D computerised techniques for facial reconstruction.

13 Mar 2008

Nuclear protein SATB1 triggers aggressive breast cancer

SATB1 is a nuclear protein well known for its crucial role in regulating gene expression during the differentiation and activation of T cells, making it a key player in the immune system.

13 Mar 2008

Scientists discover epigenetic changes in schizophrenia and bipolar disorder

Scientists have discovered epigenetic changes (i.e. chemical changes to a gene that do not alter the DNA sequence) in individuals with schizophrenia and bipolar disorder.

12 Mar 2008

Scientists characterizes novel regulator of chromosome function

The Stowers Institute's Workman Lab has shed new light on a novel histone acetyltransferase protein complex called ATAC.

11 Mar 2008

Scientists unlock secrets of E coli contamination

Using new genetic techniques, scientists are unlocking the secrets of how E coli bacteria contaminate food and make people sick.

11 Mar 2008

How do infections and toxins launch a cell's self-destruct and alarm system?

Cells are coded with several programs for self-destruction.

11 Mar 2008

Portable DNA sensors

A researcher at the National University at San Diego has taken a mathematical approach to a biological problem - how to design a portable DNA detector.

11 Mar 2008

Tackling antimicrobial resistance

Drug resistance is making many diseases increasingly difficult and sometimes impossible to treat, according to Anthony S. Fauci, M.D., director of the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health.

11 Mar 2008

Improved method for genetically manipulating human embryonic stem cells

UC Irvine researchers have discovered a dramatically improved method for genetically manipulating human embryonic stem cells, making it easier for scientists to study and potentially treat thousands of disorders ranging from Huntington's disease to muscular dystrophy and diabetes.

10 Mar 2008

Cruciferous vegetables may lower risk for breast cancer

When your mother told you to eat your vegetables it appears that maternal wisdom had a scientific basis.

10 Mar 2008

Jivan Biologics awarded US patent for splice array analysis

Jivan Biologics Inc., a privately held corporation located in Berkeley, CA, has been awarded US Patent #7,340,349, "Method and System for Identifying Splice Variants of a Gene."

10 Mar 2008

Molecular alliance that sustains embryonic stem cell state

One of the four ingredients in the genetic recipe that scientists in Japan and the U.S. followed last year to persuade human skin cells to revert to an embryonic stem cell state, is dispensable in ES cells, thanks to the presence of a molecular alliance between a specific group of key proteins known as transcription factors, a research team led by the Genome Institute of Singapore (GIS) under the Agency for Science, Technology and Research (A*STAR) reports in the current issue of Nature Cell Biology.

6 Mar 2008