DNA News and Research

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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).

Researchers identify two gene mutations that cause neuromuscular disorder

Research into how carbohydrates are converted into energy has led to a surprising discovery with implications for the treatment of a perplexing and potentially fatal neuromuscular disorder and possibly even cancer and heart disease.

25 May 2012

Phi29 DNA packaging nanomotor connector can aid in early disease diagnosis

A new study led by University of Kentucky researchers shows a new way to precisely detect a single chemical at extremely low concentrations and high contamination.

23 May 2012

Study shows how chromosomal mutation likely contributes to early development of prostate cancer

Up to half of all prostate cancer cells have a chromosomal rearrangement that results in a new "fusion" gene and formation of its unique protein -- but no one has known how that alteration promotes cancer growth. Now, Weill Cornell Medical College researchers have found that in these cancer cells, the 3-D architecture of DNA, wrapped up in a little ball known as a chromatin, is warped in such a way that a switch has been thrown on thousands of genes, turning them on or off to promote abnormal, unchecked growth. Researchers also found that new chromosomal translocations form, further destabilizing the genome.

23 May 2012

HVTN opens enrollment in GeoVax’s GM-CSF adjuvanted vaccine Phase 1 trial for HIV

GeoVax Labs, Inc., an Atlanta-based biopharmaceutical firm developing vaccines to prevent and fight Human Immunodeficiency Virus (HIV) infections, today announced that the NIH-funded HIV Vaccine Trials Network (HVTN) has opened enrollment for a Phase 1 trial for the company's second-generation HIV vaccine.

23 May 2012

MDxHealth announces availability of ConfirmMDx for Prostate Cancer test

MDxHealth SA, a leading molecular diagnostic company that develops and commercializes epigenetic tests to support cancer treatment, today announced it has presented data demonstrating that its epigenetic ConfirmMDx for Prostate Cancer test can aid urologists in identifying patients who may avoid a repeat prostate biopsy.

23 May 2012

Science journal’s NEWSFOCUS section describes recent advances in sequencing technology

Rapid DNA sequencing may soon become a routine part of each individual's medical record, providing enormous information previously sequestered in the human genome's 3 billion nucleotide bases. This week's NEWSFOCUS section of the journal Science describes recent advances in sequencing technology.

From Oxford Nanopore Technologies 23 May 2012

Special feature of Science journal highlights protein array technology

A special feature in this week's issue of the journal Science highlights protein array technology, touching on research conducted by Joshua LaBaer, director of the Biodesign Institute's Virginia G. Piper Center for Personalized Diagnostics.

23 May 2012

Microfluidic chip can diagnose latent TB

Biomedical engineers at UC Davis have developed a microfluidic chip to test for latent tuberculosis. They hope the test will be cheaper, faster and more reliable than current testing for the disease.

23 May 2012

Inexpensive sleep disorder drug appears to be potent inhibitor of cancer cells

An inexpensive "orphan drug" used to treat sleep disorders appears to be a potent inhibitor of cancer cells, according to a new study led by scientists at Fred Hutchinson Cancer Research Center.

22 May 2012

CHDI, Lundbeck enter collaboration to investigate targeted therapy for Huntington's disease

CHDI Foundation, Inc. and Lundbeck today announced a research collaboration to investigate a targeted therapy for Huntington's disease (HD). Currently, no treatment exists to slow or halt the progression of HD, a challenging hereditary neurodegenerative disease characterized by a triad of behavioral, cognitive, and motor symptoms.

21 May 2012

Neurogenesis may encourage excessive weight gain and fat storage

New nerve cells formed in a select part of the brain could hold considerable sway over how much you eat and consequently weigh, new animal research by Johns Hopkins scientists suggests in a study published in the May issue of Nature Neuroscience.

21 May 2012

Deletion of 'lunatic fringe' promotes tumor formation of basal-like breast cancers

Multiple research projects - including a 2006 study conducted at the University of North Carolina at Chapel Hill - have used DNA microarray analysis to identify several breast cancer subtypes, including luminal A, luminal B, basal-like and HER2-enriched.

21 May 2012

A better way to 'spell check' gene sequences

A PhD student from CSIRO and the University of Queensland has found a better way to 'spell check' gene sequences.

21 May 2012

Biomarker neutralizes effect of bevacizumab in pancreas and kidney cancer patients

Diether Lambrechts (VIB - KU Leuven) said "in two large clinical studies with patients with advanced stages of pancreas and kidney cancer a variant in the DNA was discovered that identified patients who did not respond well to the prescribed course of bevacizumab.

21 May 2012

Study uncovers distinct subtype of prostate cancer

A collaborative expedition into the deep genetics of prostate cancer has uncovered a distinct subtype of the disease, one that appears to account for up to 15 percent of all cases, say researchers at Weill Cornell Medical College, the Broad Institute of MIT and Harvard and the Dana-Farber Cancer Institute.

21 May 2012

Panobinostat able to target and destroy triple negative breast cancer

The histone de-acetylase (HDAC) inhibitor panobinostat is able to target and destroy triple negative breast cancer, reveals a new study published in BioMed Central's open access journal Breast Cancer Research.

21 May 2012

Prenatal Diagnosis publishes Sequenom CMM’s MaterniT21 PLUS LDT clinical study

Sequenom, Inc., a life sciences company providing innovative genetic analysis solutions, today announced that a new publication from the large Women & Infants multi-center clinical study on the Sequenom Center for Molecular Medicine's (Sequenom CMM) MaterniT21 PLUS laboratory-developed test (LDT) has been published online in the peer-reviewed journal, Prenatal Diagnosis.

19 May 2012

Large survey of genetic variation offers insights into human diseases

A large survey of human genetic variation, published today in the online version of the journal Science, shows that rare genetic variants are not so rare after all and offers insights into human diseases.

19 May 2012

Researchers identify mechanism by which Zds1 protein regulates key function in mitosis

Researchers from the Bellvitge Biomedical Research Institute (IDIBELL) have identified the mechanism by which protein Zds1 regulates a key function in mitosis, the process that occurs immediately before cell division.

19 May 2012

Rare DNA variations may be responsible for differences in susceptibility to common disorders

One-letter switches in the DNA code occur much more frequently in human genomes than anticipated, but are often only found in one or a few individuals. The abundance of rare variations across the human genome is consistent with the population explosion of the past few thousand years, medical geneticists and evolutionary biologists report in the May 17 advanced online edition of Science.

19 May 2012