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).

Bottom up assembly of cells into 3-D microtissues

Scientists at the U.S. Department of Energy's Lawrence Berkeley National Laboratory can now control how cells connect with one another in vitro and assemble themselves into three-dimensional, multicellular microtissues.

5 Mar 2009

RNA World: a new frontier in biomedical research

Research into RNA, a molecule found in every cell of our bodies, could lead to remarkable advances in the treatment of diseases such as cancer and diabetes, a meeting organised by the European Science Foundation was told.

4 Mar 2009

History of major depression increases risk for heart disease more than genetics or environment

A history of major depression increases the risk of heart disease over and above any genetic risks common to depression and heart disease, according to researchers at Washington University School of Medicine in St. Louis and the VA.

4 Mar 2009

Molecule provides clues about how HPV may lead to cancer

New research shows for the first time that certain types of human papillomavirus (HPV), which cause cervical and some other types of cancer, can inhibit the production of a tiny single-stranded RNA called microRNA 34a, or miR-34a.

4 Mar 2009

Bigger genomes more useful

Biologists analyzing DNA in search of the molecular underpinnings of life have consistently favored species with small genomes, which are cheaper to sequence and lack the repetitive "junk" that clutters bigger genomes.

3 Mar 2009

Faulty signalling in the brain may cause schizophrenia

In the biggest study of its kind, scientists looking in detail at brain samples donated by people with the condition have identified 49 genes that work differently in the brains of schizophrenia patients compared to controls.

3 Mar 2009

Molecular switch linked to obesity, insulin resistance, type II diabetes

A molecular switch found in the fat tissue of obese mice is a critical factor in the development of insulin resistance, report scientists at the Salk Institute for Biological Studies.

3 Mar 2009

A new monkey model for HIV

By altering just one gene in HIV-1, scientists have succeeded in infecting pig-tailed macaque monkeys with a human version of the virus that has until now been impossible to study directly in animals.

2 Mar 2009

Protein complex shown to play pivotal role in stem cell development

Scientists at the Stanford University School of Medicine have identified a protein complex important in controlling whether embryonic stem cells retain their ability to become any cell in the body - a quality called pluripotency - or instead embark on a pathway of maturation and specialization.

2 Mar 2009

Prenatal molecular diagnosis for tuberous sclerosis complex

Geneticists from Boston University School of Medicine (BUSM) have reported the world's first series of cases of prenatal diagnosis for women at risk of having a child with tuberous sclerosis complex (TSC).

2 Mar 2009

Children born to women who have low blood levels of vitamin B12 have increased risk for neural tube defects

Children born to women who have low blood levels of vitamin B12 shortly before and after conception may have an increased risk of a neural tube defect, according to an analysis by researchers at the National Institutes of Health, Trinity College Dublin, and the Health Research Board of Ireland.

2 Mar 2009

Regular screening for colorectal cancer remains effective in preventing and detecting disease early

As the nation marks National Colorectal Cancer Awareness Month this March, the American Cancer Society is encouraging Americans to get lifesaving screening tests that have been proven to reduce the risk of the third leading cause of cancer death in both men and women.

2 Mar 2009

New gene associated with Lou Gehrig's disease

A collaborative research effort spanning nearly a decade between researchers at Massachusetts General Hospital (MGH) and King's College London (KCL) has identified a novel gene for inherited amyotrophic lateral sclerosis (ALS, also known as Lou Gehrig's disease).

26 Feb 2009

Scientists develop general-purpose method for detecting trace chemicals

Described in an advance, online publication of the journal Nature Biotechnology on February 22, 2009, the team's general method could be adapted for detecting a wide variety of compounds, including many that are relevant to diagnostic medicine and environmental work.

26 Feb 2009

New software aids discovery of new genetic markers for diseases

Modern genotyping technologies offer new opportunities to explore how genes influence health and disease, but also present the challenge of analyzing huge amounts of genetic and clinical data.

26 Feb 2009

Novel approach to gene hunting uncovers possible new targets for Crohn's disease drugs

Discovering the different genes that contribute to a complex disease is like searching in the proverbial haystack for an unknown number of needles--some much smaller than others, often blending into the background, and many of them widely separated from each other.

26 Feb 2009

Medivation announces new positive efficacy data from trial of MDV3100 in Castration-resistant prostate cancer

Medivation, Inc. has announced the presentation of new efficacy and safety data from an ongoing Phase 1-2 clinical trial of the Company's novel androgen receptor antagonist MDV3100 in castration-resistant prostate cancer (CRPC) patients.

25 Feb 2009

Could our mother's diet at time we are conceived set the course for our future health?

This intriguing question is at the heart of a new study based on an "experiment of nature" being conducted by Wellcome Trust-funded researchers.

25 Feb 2009

Investigational protein may reverse neurodegenerative diseases

An investigational protein that transformed normal laboratory mice into super-jocks holds great promise in developing new treatments for neurodegenerative diseases like Parkinson's, Alzheimer's and ALS (Lou Gehrig's Disease), say researchers at the University of Virginia Health System.

24 Feb 2009