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Researchers explain process by which cells 'hide' potentially dangerous DNA segments

The DNA in the 23 pairs of chromosomes in each of the billions of cells of the human body is so tightly packed that it would measure six feet in length if stretched end to end.

12 Apr 2009

Understanding mental illness through gene-environment interactions

Biological Psychiatry, published by Elsevier, is very pleased to present a special section of its February 1st issue devoted to fundamental new insights into epigenetics, a field of research devoted to understanding how the environment can produce long-lasting or even heritable changes in gene function without altering the DNA sequence.

17 Mar 2009

New understanding of mechanism that regulates DNA methylation

Researchers in a University of Oregon lab have shed more light on the mechanism that regulates DNA methylation, a fundamental biological process in which a methyl group is attached to DNA, the genetic material in cells of living organisms.

14 Dec 2008

Risk of death may be higher with aprotinin commonly used during cardiac surgery

The risks of death are probably higher with aprotinin, a drug commonly used to control blood loss and transfusions during cardiac surgery, compared with lysine analogues, according to a study to be published in the January 20th issue of CMAJ.

3 Dec 2008

Scientists confirm a molecular clipping mechanism behind stem cell development

Stem cells don't just become a part of the liver or the brain in a flash; it takes a complex molecular choreography and requires that specific genes be switched on and off at specific times.

6 Nov 2008

Dendrimers improve imaging with magnetic nanoparticles

Dendrimers are spherical polymer nanoparticles that have shown promise as targeted anticancer drug delivery vehicles. Iron oxide nanoparticles have already demonstrated the ability to image tumors and metastatic lesions.

20 May 2008

Epigenetic research uncovers new targets for modification enzymes

Enzymes regulating genetic expression can be just as important as the genome itself, increasing evidence shows.

27 Apr 2008

Researchers discover how stealthy HIV protein gets into cells

Scientists have known for more than a decade that a protein associated with the HIV virus is good at crossing cell membranes, but they didn't know how it worked.

18 Mar 2008

Scientists identify proteins that help bacteria put up a fight

Scientists have identified the role of two proteins that contribute to disease-causing bacteria cells' versatility in resisting certain classes of antibiotics.

27 Feb 2008

Lethal human H5N1 influenza virus Replikin gene still upregulated

Replikins Ltd. has announced its latest findings regarding the virus replikin count in human H5N1 influenza virus. The company's software-driven analysis has found that the prevalence of these sequences has remained high in Indonesia; in addition, higher counts now have been found in China.

12 Dec 2007

New insight into glutaric acidemia type I

Glutaric acidemia type I (GA-I) is an inherited disorder similar to Huntington disease. Individuals with GA-I are unable to breakdown completely the amino acids lysine and tryptophan and the intermediates of lysine and tryptophan breakdown accumulate in the brain.

12 Oct 2007

Discovery may lead to fast and cheap method of making vaccines

Researchers may be able to tinker with a single amino acid of an enzyme that helps viruses multiply to render them harmless, according to molecular biologists who say the discovery could pave the way for a fast and cheap method of making vaccines.

29 Aug 2007

Light-activated molecules used to induce apoptosis in cancer cells

A key challenge facing doctors as they treat patients suffering from cancer or other diseases resulting from genetic mutations is that the drugs at their disposal often don't discriminate between healthy cells and dangerous ones -- think of the brute-force approach of chemotherapy, for instance.

12 Aug 2007

New understanding of ubiquitylation

It turns out there's more than one way to skin a gene. New research from Rockefeller University suggests that two closely related DNA unpackaging mechanisms may not work the way scientists thought.

10 May 2007

New interactive map shows spread of avian flu virus

Scientists here have designed a new, interactive map of the spread of the avian flu virus (H5N1) that for the first time incorporates genetic, geographic and evolutionary information that may help predict where the next outbreak of the virus is likely to occur.

1 May 2007

Google maps used to track avian flu spread

An interactive "supermap" that portrays the mutations and spread of the avian flu around the globe over time should help researchers and policy makers better understand the virus and anticipate further outbreaks, according to a new study involving University of Colorado at Boulder and Ohio State University researchers.

1 May 2007

Nasal spray of virus enzymes for ear infections

Parents might one day give their children a weekly treatment with a nasal spray of virus enzymes to prevent them from getting severe middle ear infections, based on results of a study done in mice by investigators from St. Jude and The Rockefeller University.

27 Apr 2007

Biomimetic amplification of nanoparticle homing to tumors

A collaborative, multidisciplinary team of researchers has created nanoparticles that act much like a developing clot to target tumors.

16 Jan 2007

Templated self-assembly of quantum dots from aqueous solution using protein scaffolds

Quantum dots are rapidly becoming biomedical researchers' tool of choice for adding a fluorescent label to a wide variety of biomolecules.

20 Nov 2006

Birch bark compound may be potent prostate cancer fighter

A compound found in the bark of the white birch tree - betulonic acid, a derivative of betulinol - may finally have been rendered a water-soluble, bio-available drug, and is already showing the potential to be a possible agent against prostate cancer - in cell culture and in an animal model.

25 Jul 2006