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).

Y chromosome may be the link that passes heart disease risk from father to son

The study, published in The Lancet, focused on genetic markers on the Y chromosome — which is present only in male DNA (women have two X chromosomes) — and found that men with a certain genetic variant were 50% more likely to have coronary artery disease than those without it. The increased risk was independent of other contributors to heart disease such as age, weight, high cholesterol, high blood pressure and smoking.

12 Feb 2012

Scientists identify single prion protein that causes neuronal death

Scientists from the Florida campus of The Scripps Research Institute have identified a single prion protein that causes neuronal death similar to that seen in "mad cow" disease, but is at least 10 times more lethal than larger prion species.

10 Feb 2012

Genomics pioneer to present at ARVO 2012 meeting

The Association for Research in Vision and Ophthalmology is pleased to welcome J. Craig Venter as the keynote speaker at the opening session of ARVO 2012 on Sunday, May 6 in Fort Lauderdale, Fla. Venter's presentation is entitled "From Reading to Writing the Genetic Code."

10 Feb 2012

Chromosomal microarray provides more information about fetal abnormalities

A nationwide, federally funded study has found that testing a developing fetus' DNA through chromosomal microarray (CMA) provides more information about potential disorders than does the standard method of prenatal testing, which is to visually examine the chromosomes.

10 Feb 2012

UC Riverside uncovers new insight into colon cancer

An international research team led by cell biologists at the University of California, Riverside has uncovered a new insight into colon cancer, the third leading cause of cancer-related deaths in the United States. The research provides potential new avenues for diagnosing and treating the disease.

10 Feb 2012

DNA sequencing can direct immune system to attack cancer

DNA sequences from tumor cells can be used to direct the immune system to attack cancer, according to scientists at Washington University School of Medicine in St. Louis.

9 Feb 2012

Fasting and chemotherapy drugs more effectively treat cancers

Man may not live by bread alone, but cancer in animals appears less resilient, according to a study that found chemotherapy drugs work better when combined with cycles of short, severe fasting.

9 Feb 2012

Mary Ann Liebert to launch BioResearch Open Access in March

BioResearch Open Access, a new bimonthly peer-reviewed open access journal, will launch in March 2012 by Mary Ann Liebert, Inc., publishers.

9 Feb 2012

Study describes molecular pathway that controls rest and activity rhythms

The molecular pathway that carries time-of-day signals from the body's internal clock to ultimately guide daily behavior is like a black box, says Amita Sehgal, PhD, the John Herr Musser Professor of Neuroscience and Co-Director, Comprehensive Neuroscience Center, at the Perelman School of Medicine, University of Pennsylvania.

8 Feb 2012

Researchers learn how to improve performance of microcantilever sensors

Researchers have learned how to improve the performance of sensors that use tiny vibrating microcantilevers to detect chemical and biological agents for applications from national security to food processing.

8 Feb 2012

Link between inflammation-related genes and risk of ovarian cancer

In a study conducted by researchers at Moffitt Cancer Center and colleagues from 11 other institutions in the Unites States and the United Kingdom, genes that are known to be involved in inflammation were found to be related to risk of ovarian cancer.

7 Feb 2012

Cyclin D1 oncogene may promote chromosomal instability

A team of researchers at Jefferson's Kimmel Cancer Center (KCC) led by Richard G. Pestell, M.D., PhD., FACP, Director of the KCC and Chair of the Department of Cancer Biology, have shown in a study published online Feb. 6 in the Journal of Clinical Investigation that the oncogene cyclin D1 may promote a genetic breakdown known as chromosomal instability (CIN). CIN is a known, yet poorly understood culprit in tumor progression.

7 Feb 2012

Genomic Health plans to establish wholly owned subsidiary

Genomic Health, Inc. today announced plans to establish a wholly owned subsidiary with the goal of improving the quality of diagnosis, communication and support for millions of patients and their families faced with common and rare genetic conditions.

7 Feb 2012

Positive data from Chimerix CMX001 Phase 2 study on CMV disease

Chimerix, Inc., a biotechnology company developing novel antiviral therapeutics, today announced positive results from CMX001 Study 201, a Phase 2 study evaluating CMX001 for the prevention of cytomegalovirus (CMV) disease in hematopoietic stem cell transplant (HCT) recipients.

6 Feb 2012

Scientists search gene alterations in three-parent kids

Researchers from Australia want to find out if using the DNA of three parents will prevent children inheriting life-threatening diseases. They add that if the technique proves successful in preventing the transfer of mitochondrial DNA mutations from mothers to babies, then laws on the use of embryos will need to be changed to allow the procedure.

6 Feb 2012

Positive results from Chimerix CMX001 study for CMV in hematopoietic stem cell transplant recipients

6 Feb 2012

Precision receives U.S. patent allowance for genome engineering methods

Precision BioSciences, Inc., a leader in the field of genome engineering, today announced that the United States Patent and Trademark Office (PTO) has issued Notices of Allowance for U.S. Patent Applications 13/246,270 and 13/246,346.

6 Feb 2012

Pyromaker can more accurately identify complex genetic mutations

DNA sequencing to detect genetic mutations can aid in the diagnosis and selection of treatment for cancer. Current methods of testing DNA samples, Sanger sequencing and pyrosequencing, occasionally produce complex results that can be difficult or impossible to interpret. Scientists at the Johns Hopkins University School of Medicine have developed a free software program, Pyromaker, that can more accurately identify such complex genetic mutations.

6 Feb 2012

Scientists discover extremely long-lived proteins in aging rats

One of the big mysteries in biology is why cells age. Now scientists at the Salk Institute for Biological Studies report that they have discovered a weakness in a component of brain cells that may explain how the aging process occurs in the brain.

4 Feb 2012

People with CD36 gene may like high-fat foods more than others

A preference for fatty foods has a genetic basis, according to researchers, who discovered that people with certain forms of the CD36 gene may like high-fat foods more than those who have other forms of this gene.

3 Feb 2012