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).

Study helps explain why leukemia occurs more frequently as people age

Hundreds of mutations exist in leukemia cells at the time of diagnosis, but nearly all occur randomly as a part of normal aging and are not related to cancer, new research shows.

20 Jul 2012

IMDx HSV-1/2 for Abbott m2000 assay receives CE-marking

IntelligentMDx (IMDx) announced today that it has obtained CE-marking for its fourth automated, high-throughput molecular test designed and developed for the Abbott m2000 System.

20 Jul 2012

Longer looks: Physicians and assisted suicide; Avoid getting sick in July

Peggy Sutherland was ready to die. The morphine oozing from a pump in her spine was no match for the pain of lung cancer, which had evaded treatment and invaded her ribs. … Sutherland, 68, decided to use Oregon's "Death With Dignity Act," which allows terminally-ill residents to end their lives after a 15-day requisite waiting period by self-administering a lethal prescription drug. ... But not all doctors are on board with the law.

20 Jul 2012

Statistical method uses evolutionary information to enhance identification of disease-associated alleles

A book containing misprints may cause annoyance for the reader, but typos in an individual's genetic blueprint (DNA) can mean serious disease or even death. The search for genetic correlates for the wide range of diseases plaguing humankind has inspired a wealth of research falling under the heading of genome-wide association studies (GWAS).

19 Jul 2012

New research sheds light on pluripotency

New research at the Hebrew University of Jerusalem sheds light on pluripotency-the ability of embryonic stem cells to renew themselves indefinitely and to differentiate into all types of mature cells.

19 Jul 2012

Blog examines potential repercussions of CIA's fake vaccination campaign in Pakistan

In this post on her blog, "The Garrett Update," Laurie Garrett, senior fellow for global health at the Council on Foreign Relations (CFR), examines the potential implications of a fake hepatitis vaccine campaign carried out by the CIA in Pakistan last year in an attempt to gather DNA from Osama bin Laden's family.

19 Jul 2012

High vitamin E intake associated with reduced risk of liver cancer

High consumption of vitamin E either from diet or vitamin supplements may lower the risk of liver cancer, according to a study published July 17 in the Journal of the National Cancer Institute.

19 Jul 2012

Researchers identify new behavior for the human macrophage

Researchers at the Institute of Human Virology of the University of Maryland School of Medicine have identified a new behavior for the human macrophage that provides new explanations for several features of HIV biology, including how the virus persists within the body indefinitely, how quiescently infected CD4+ T-cells arise, and how the infection leads to depletion of CD4+ T-cells.

19 Jul 2012

Estrogen may mediate low incidence of HCC in women

Study findings suggest that estrogen may have a suppressive effect on hepatocellular carcinoma, potentially explaining its lower incidence in women.

18 Jul 2012

Wake Forest, UCSD develop new genetic test for prostate cancer

Karim Kader, MD, PhD, associate clinical professor at the UC San Diego School of Medicine, together with a team of researchers from Wake Forest University School of Medicine, have developed a genetic test to predict a man's risk for prostate cancer. Use of the test could reduce the need for repeat biopsies in men who have had a negative biopsy.

18 Jul 2012

Illumina launches new kits for targeted resequencing studies

Illumina, Inc. today introduced Nextera Exome and Custom Enrichment kits, the Company's latest targeted resequencing solutions offering sample preparation and enrichment in a single, integrated workflow.

From Illumina, Inc. 17 Jul 2012

Researchers begin to uncover important clues about SCAD

Spontaneous coronary artery dissection (SCAD), a tear of the layers of the artery wall that can block normal blood flow into and around the heart, is a relatively rare and poorly understood condition. It often strikes young, otherwise healthy people -- mostly women -- and can lead to significant heart damage, even sudden death.

17 Jul 2012

Activating NOTCH and AKT gene may trigger cholangiocarcinoma

A rare type of cancer thought to derive from cells in the bile ducts of the liver may actually develop when one type of liver cell morphs into a totally different type, a process scientists used to consider all but impossible. UCSF researchers triggered this kind of cellular transformation-and caused tumors to form in mice-by activating just two genes.

17 Jul 2012

BRAF L597 mutation in melanoma patients responds to MEK inhibitor drugs

An uncommon mutation of the BRAF gene in melanoma patients has been found to respond to MEK inhibitor drugs, providing a rationale for routine screening and therapy in melanoma patients who harbor the BRAF L597 mutation.

17 Jul 2012

Cadherin-catenin-actin structure exerts force inside and between cells in living tissues

If you place certain types of living cells on a microscope slide, the cells will inch across the glass, find their neighbors, and assemble themselves into a simple, if primitive tissue. A new study at Stanford University may help explain this phenomenon, and then some, about the mechanical structure and behavior of complex living organisms.

17 Jul 2012

UMMS scientists identify new genetic mutation that causes familial ALS

A new genetic mutation that causes familial amyotrophic lateral sclerosis (ALS), a fatal neurological disorder also known as Lou Gehrig's Disease, has been identified by a team of scientists led by researchers at the University of Massachusetts Medical School (UMMS).

16 Jul 2012

Researchers link newly discovered gene mutations to ALS

Researchers have linked newly discovered gene mutations to some cases of the progressive fatal neurological disease amyotrophic lateral sclerosis - ALS, also known as Lou Gehrig's disease. Shedding light on how ALS destroys the cells and leads to paralysis, the researchers found that mutations in this gene affect the structure and growth of nerve cells.

16 Jul 2012