DNA News and Research

RSS

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).

Cancer cells with specific genetic defect extra susceptible to therapy that damages DNA

Using a strategy based on treating cancer cells that carry a specific genetic signature - hyper-expression of the protein Myc - with therapy that affects the stability of the cell's DNA, more effective results can be achieved.

5 Sep 2011

Scientists purify PARP protein that shows promise against breast, ovarian cancers

CANCER RESEARCH UK scientists have succeeded in purifying a protein found in bacteria that could reveal new drug targets for inherited breast and ovarian cancers - and other cancers linked to DNA repair faults.

5 Sep 2011

C. sporogenes bacterium could be used as vehicle to deliver drugs in frontline cancer therapy

A bacterial strain that specifically targets tumours could soon be used as a vehicle to deliver drugs in frontline cancer therapy. The strain is expected to be tested in cancer patients in 2013 says a scientist at the Society for General Microbiology's Autumn Conference at the University of York.

5 Sep 2011

Researchers discover new genetic defect that predisposes people to leukemia, myelodysplasia

A new genetic defect that predisposes people to acute myeloid leukemia and myelodysplasia has been discovered. The mutations were found in the GATA2 gene. Among its several regulatory roles, the gene acts as a master control during the transition of primitive blood-forming cells into white blood cells.

5 Sep 2011

Scientists discover highly conserved mechanism governing brain development

If you think today's political rhetoric is overheated, imagine what goes on inside a vertebrate embryo. There, two armies whose agendas are poles apart, engage in a battle with consequences much more dire than whether the economy will recover---- they are battling for whether you (or frogs or chickens) will have a forebrain.

3 Sep 2011

Study finds link between long-term dietary patterns and human gut bacteria

"You are what you eat" is familiar enough, but how deep do the implications go? An interdisciplinary group of investigators from the Perelman School of Medicine at the University of Pennsylvania have found an association between long-term dietary patterns and the bacteria of the human gut.

3 Sep 2011

Researchers discover mechanisms behind BRCA1 gene mutations in breast and ovarian cancer

It is widely known that mutations in the breast cancer susceptibility 1 (BRCA1) gene significantly increase the chance of developing breast and ovarian cancers, but the mechanisms at play are not fully understood. Now, researchers at Virginia Commonwealth University Massey Cancer Center have shown that certain BRCA1 mutations result in excessive, uncontrolled DNA repair, which challenges the prior assumption that mutations in BRCA1 only contribute to breast cancer through a reduction in function.

3 Sep 2011

NASA, Louisiana Tech to conduct zero-gravity testing of DNA analysis device

Researchers from Louisiana Tech University will be floating high above the Gulf of Mexico this month to conduct zero-gravity testing of an experimental DNA analysis instrument developed at Tech that could benefit future NASA astronauts.

3 Sep 2011

New research puts an unexpected twist on how mitochondria divide within cells

New research from the University of California, Davis, and the University of Colorado at Boulder puts an unexpected twist on how mitochondria, the energy-generating structures within cells, divide.

3 Sep 2011

Contraceptive pill prevents loss of eye sight

Scientists at University College Cork (UCC) have shown that the active component (Norgestrel) of the contraceptive 'Mini Pill' prevents the loss of sight in mice that have degenerative eye conditions that normally lead to blindness.

2 Sep 2011

Chromatin might have another life as direct signaling molecule

Chromatin - the intertwined histone proteins and DNA that make up chromosomes - constantly receives messages that pour in from a cell's intricate signaling networks: Turn that gene on. Stifle that one. But chromatin also talks back, scientists at The University of Texas MD Anderson Cancer Center report today in the journal Cell, issuing orders affecting a protein that has nothing to do with chromatin's central role in gene transcription - the first step in protein formation.

2 Sep 2011

Ancient antibiotic resistance findings leads experts to stress need to use antibiotics sparingly

"An analysis of 30,000-year-old bacteria whose DNA has been recovered from the Yukon permafrost shows that they were able to resist antibiotics," providing "the first direct evidence that antibiotic resistance is a widespread natural phenomenon that preceded the modern medical use of antibiotics," according to a study in Thursday's issue of the journal Nature, the New York Times reports.

2 Sep 2011

Scientists discover genetic cause of extreme thinness

Scientists have discovered a genetic cause of extreme thinness for the first time, in a study published today in the journal Nature.

2 Sep 2011

New clinical data on Bristol-Myers Squibb's NULOJIX to be presented at ESOT 2011 congress

Bristol-Myers Squibb Company today announced that new data on NULOJIX (belatacept) will be presented at the European Society for Organ Transplantation (ESOT) Congress on September 4 -7, 2011 in Glasgow, Scotland, United Kingdom.

2 Sep 2011

Older dads have a higher risk of having kids with mental disorders: Study

According to a new study children of older fathers have genetic changes associated with autism and other brain disorders. As of now this is seen only in lab mice. Professor John McGrath of the Queensland University’s Brain Institute and colleagues report their findings today in the journal Translational Psychiatry.

31 Aug 2011

Mayo Clinic identifies new benefit of social media and online networks for rare diseases research

Mayo Clinic has identified a new benefit of social media and online networking: a novel way to study rare diseases. Through patient-run websites dedicated to heart conditions and women's heart health, a team of cardiologists led by Sharonne Hayes, M.D., is reaching out to survivors of spontaneous coronary artery dissection, also known as SCAD, a poorly understood heart condition that affects just a few thousand Americans every year.

31 Aug 2011

Dad's stress can affect unborn children

Does Dad's stress affect his unborn children? According to the results of a new study in Elsevier's Biological Psychiatry, it seems the answer may be "yes, but it's complicated".

31 Aug 2011

Stanford method identifies essential regions of Caulobacter's genome

A team at the Stanford University School of Medicine has cataloged, down to the letter, exactly what parts of the genetic code are essential for survival in one bacterial species, Caulobacter crescentus.

31 Aug 2011

Scientists using molecular epidemiology to diagnose and track disease outbreaks

The New York Times examines "new methods of quickly sequencing entire microbial genomes that are revolutionizing the field" of molecularly epidemiology and could help public health officials identify and track disease outbreaks.

31 Aug 2011

Parental stress strongly associated with DNA methylation in children

Researchers at the University of British Columbia and the Child & Family Research Institute have shown that parental stress during their children's early years can leave an imprint on their sons' or daughters' genes - an imprint that lasts into adolescence and may affect how these genes are expressed later in life.

31 Aug 2011