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).

Genetic diversity of European Americans and disease gene mapping

Labels such as "European American", "white", or "Caucasian" are often viewed as representing a homogeneous category in gene mapping studies and census reports, but each of these labels actually groups together multiple populations, which have diverse origins due to the complex history of European immigration to the United States.

21 Jan 2008

Common variations in human DNA signal lupus risk

Scientists have pinpointed a set of common variations in human DNA that signal a higher risk for lupus in women who carry them.

21 Jan 2008

New method to transfer DNA into a host cell

Genetically engineered products have become indispensable. For example, genetically modified bacteria produce human insulin.

21 Jan 2008

Case researcher in RNA biology makes waves by challenging current thinking

In the January 18th issue of Molecular Cell, Case Western Reserve University School of Medicine researcher Kristian E. Baker, Ph.D. challenges molecular biology's established body of evidence and widely-accepted model for nonsense-mediated messenger ribonucleic acid (mRNA) decay.

21 Jan 2008

Culprit cell for childhood leukaemia discovered

A study by British researchers of twin girls has identified a rogue cell that is the fundamental cause of childhood leukaemia.

20 Jan 2008

British scientists given go-ahead for human-animal embryo research

Scientists in Britain have been given the go-ahead to create human-animal hybrid embryos for research.

20 Jan 2008

Previously unknown Merkel cell polyomavirus linked to deadly skin cancer

A new strategy to hunt for human viruses described in this week's issue of the journal Science by the husband-and-wife team who found the cause of Kaposi's sarcoma has revealed a previously unknown virus strongly associated with another rare but deadly skin cancer called Merkel cell carcinoma.

18 Jan 2008

New genetic test for prostate cancer

Men with susceptibility for prostate cancer will soon be identifiable through a simple DNA test.

18 Jan 2008

Current state of the art in glycoscience

Sugars were once credited with magical healing powers but are now seen like salt as an evil necessary in small doses but the cause of numerous diseases such as diabetes if taken in excess.

18 Jan 2008

Cancer stem cell marker also drives transcription in normal cells

New research links the recently discovered function of a multi-faceted transcriptional complex to control of gene expression in both normal cells and cancer stem cells.

18 Jan 2008

Scientists focus on Epstein-Barr virus

Epstein-Barr virus (EBV) is a human-pathogenic virus which belongs to the herpes virus family.

18 Jan 2008

New clues about BRCA1 role in breast cancer

A breast cancer gene's newly discovered role in repairing damaged DNA may help explain why women who inherit a mutated copy of the gene are at increased risk for developing both breast and ovarian cancer.

17 Jan 2008

Acanthus ilicifolius plant may combat liver cancer

Liver cancer is the fifth most common cancer in the world with a poor prognosis. About three quarters of the cases of liver cancer are found in Southeast Asia, including China, Hong Kong, Taiwan, Korea, India, and Japan.

17 Jan 2008

Gene markers located for hereditary prostate cancer

Researchers at the Johns Hopkins Brady Urological Institute, Wake Forest University and the Karolinska Institute in Sweden have identified an array of gene markers for hereditary prostate cancer that, along with family history for the disease, appear to raise risk to more than nine times that of men without such markers.

17 Jan 2008

Cancer cell targeting using multiple aptamers conjugated on nanorods

Aptamers, short stretches of DNA or RNA that can act much like antibodies, have shown promise as targeting agents for selective nanoparticle trafficking to tumors.

16 Jan 2008

New technique could dramatically lower costs of DNA sequencing

Using computer simulations, researchers at the University of Illinois have demonstrated a strategy for sequencing DNA by driving the molecule back and forth through a nanopore capacitor in a semiconductor chip.

16 Jan 2008

New research may shed light on how proteins interact with drugs and other small molecules

Proteins, the biological molecules involved in virtually every action of every organism, may themselves move in surprising ways, according to a recent study from the U.S. Department of Energy's Argonne National Laboratory that may shed new light on how proteins interact with drugs and other small molecules.

16 Jan 2008

Monkey malaria more widespread in Malaysian people than previously thought

A potentially fatal species of malaria is being commonly misdiagnosed as a more benign form of the disease, thereby putting lives at risk, according to research funded by the Wellcome Trust and the University Malaysia Sarawak.

16 Jan 2008

Genetic differences may explain response to multiple sclerosis treatment

By comparing the DNA of patients with multiple sclerosis whose symptoms are reduced by interferon beta therapy to the DNA of those who continue to experience relapses, researchers may have identified important genetic differences between the two, according to an article posted online that will appear in the March 2008 print issue of Archives of Neurology.

16 Jan 2008