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Scientists identify key roadblock to gene expression

A team of scientists has provided, for the first time, a detailed map of how the building blocks of chromosomes, the cellular structures that contain genes, are organized in the fruit fly Drosophila melanogaster. The work identifies a critical stop sign for transcription, the first step in gene expression, and has implications for understanding how the AIDS virus regulates its genes. The findings will be published in the 15 May 2008 issue of the journal Nature

8 May 2008

Genetic tag team orchestrates the cell cycle

By surveying the activity of thousands of genes at several different time points, researchers at the Duke Institute for Genome Sciences & Policy have uncovered new evidence that a network of influential genes act as a kind of genetic tag team to orchestrate one of the most fundamental aspects of all life: the cell cycle.

7 May 2008

New chemicals shield 'genome guardian'

Cancer Research UK scientists have discovered a potent group of chemicals that protect p53 - a major anti-tumour gene - from destruction, a study published in Cancer Cell* today (Monday) reveals.

6 May 2008

Risk of Bisphenol A in plastic products, Q & A's

Bisphenol A, an estrogenlike compound in polycarbonate plastics and epoxy resin, has been popping up in the news a lot lately.

30 Apr 2008

Scientists solve mystery about critical mechanism of gene expression

Although letters representing the three billion pairs of molecules that form the "rungs" of the helical DNA "ladder" are routinely called the human "genetic code," the DNA they comprise transmits traits across generations in a variety of ways, not all of which depend on the sequence of letters in the code.

22 Apr 2008

Interaction networks: the new path to drug discovery

Although the pharmaceutical industry has dedicated enormous research efforts over the last 50 years to identify new targets and develop new active ingredients, these efforts have met with limited success.

17 Apr 2008

Yeast cells used to screen for potential Lou Gehrig's disease drugs

Researchers from the University of Pennsylvania School of Medicine are developing a novel approach to screen for drugs to combat neurodegenerative diseases such as amyotrophic lateral sclerosis (ALS), or Lou Gehrig's disease, using yeast cells.

17 Apr 2008

TOR signaling and dietary restriction

University of Washington scientists have uncovered details about the mechanisms through which dietary restriction slows the aging process.

17 Apr 2008

Gene oppositely controlled by dietary protein, sugar

Researchers have discovered a gene in flies whose activity rises and falls depending upon the amount of protein and sugar in the insects' diets.

9 Apr 2008

Alligator blood may provide a source of powerful new antibiotics

Despite their reputation for deadly attacks on humans and pets, alligators are wiggling their way toward a new role as potential lifesavers in medicine, biochemists in Louisiana reported today at the 235th national meeting of the American Chemical Society.

7 Apr 2008

Alligator blood extract promises to help fight superbugs

Biochemists from Louisiana in the U.S. say blood from alligators could help fight deadly 'superbugs' and other infections.

7 Apr 2008

Fasting for two days protects healthy cells against chemotherapy

The chemotherapy worked as intended on cancer, extending the lifespan of mice injected with aggressive human tumors, reported a group led by Valter Longo of the University of Southern California.

1 Apr 2008

Research finds genes and processes that may underlie what makes some people more susceptible to Parkinson's disease

Better understanding of Parkinson's disease onset during aging is important for improving diagnostics and developing strategies for therapeutic intervention.

24 Mar 2008

Research leads to innovative therapies against cystic fibrosis

New U of T research holds promise for developing innovative therapies against cystic fibrosis and may also serve as a model for future therapies against the HIV virus.

19 Mar 2008

Scientists identify 25 genes that regulate lifespan

Scientists at the University of Washington and other institutions have identified 25 genes regulating lifespan in two organisms separated by about 1.5 billion years in evolutionary change.

13 Mar 2008

Scientists identify key protein in cell's 'self-eating' function

Molecular biologists at the University of California, San Diego have found one piece of the complex puzzle of autophagy, the process of "self-eating" performed by all eukaryotic cells - cells with a nucleus - to keep themselves healthy.

12 Mar 2008

Scientists characterizes novel regulator of chromosome function

The Stowers Institute's Workman Lab has shed new light on a novel histone acetyltransferase protein complex called ATAC.

11 Mar 2008

Folic acid consumption before and during pregnancy

Taking a folic acid pill a day — a simple measure to prevent severe birth defects — is under-promoted in the media, under-recommended by health care providers and underused by women of childbearing age, according to a new review of studies.

6 Mar 2008