Genomic News and Research

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More than 15 percent of our genes are mobilized to defend against microbial attacks

The body's overwhelming genetic defense, which has implications for the survival of patients who are severely burned or injured, was revealed in a sweeping analysis of gene activity in volunteers who were injected with a bacterial product that temporarily created flu-like symptoms.

1 Sep 2005

When it comes to inflammation, too much of a good thing can be deadly

In some severely injured patients, this normal healing process can develop into a lethal, whole-body response, including bloodstream infection (sepsis) and multiple organ failure. How and why inflammation turns from healing to harming is still mysterious, so doctors can't accurately predict how each injured patient will fare.

31 Aug 2005

Discovery of a potential oncogene in ovarian cancer

Researchers at The University of Texas M. D. Anderson Cancer Center report they have discovered a potential oncogene in ovarian cancer, which is the leading cause of gynecological cancer death in U.S. women.

22 Aug 2005

Preliminary molecular diagram of the early stages of embryo formation

A team of genomic researchers headed by biologists at New York University's Center for Comparative Functional Genomics, in collaboration with researchers at Harvard University, the Max Planck Institute, and Cenix Biosciences, has mapped out a preliminary molecular diagram of the early stages of embryo formation, offering for the first time a global look at how a single cell begins its path into a multi-cellular organism.

11 Aug 2005

First large-scale effort to sequence the flu genome

Multiple strains of the flu virus, circulating in a population at the same time, can reshuffle their genes and create a new virus, one capable of infecting many more people, according to a new study in the open-access journal PLoS Biology.

26 Jul 2005

More efficient genome-mining technique

An innovative new statistical method, described in the open-access journal PLoS Biology, streamlines the computation required to identify all the potential locations in the genome that influence a particular physical trait, or phenotype.

26 Jul 2005

Multi-species genome comparison sheds new light on evolutionary processes

An international team that includes researchers from the National Human Genome Research Institute (NHGRI) has discovered that mammalian chromosomes have evolved by breaking at specific sites rather than randomly as long thought - and that many of the breakage hotspots are also involved in human cancer.

25 Jul 2005

Discovery of a receptor that appears to function as one "lock" that HSV opens to allow it to enter human cells

It's one of the most common viruses in America, and one that causes the most guilt and shame. It can get inside almost any kind of human cell, reproduce in vast numbers, and linger for years in the body, causing everything from recurrent genital blisters to sores around the mouth. Its complications can kill, and it may increase susceptibility to many nerve and brain disorders.

24 Jul 2005

Hidden secrets on the nature and timing of genome evolution in mammals revealed

Breakages in chromosomes in mammalian evolution have occurred at preferred rather than random sites as long thought, and many of the sites are involved in human cancers, an international team of 25 scientists has discovered.

21 Jul 2005

SIRT1 gene suppresses longevity

Researchers have determined that a gene present in mouse cells limits the number of times that a cell can divide. The gene is involved in a process, called senescence, which is thought to ensure that aging cells do not pass on harmful mutations.

20 Jul 2005

Genome studies may help target new drugs to fight them

One parasite causes a deadly sleeping sickness in Africa. The second damages the internal organs of millions of Latin Americans. The third causes terrible lesions on the face or limbs of victims from Brazil to India.

18 Jul 2005

New clues about the location of genes potentially involved in the most common type of lung cancer

Using technology that makes it possible to zoom in on smaller sections of cell chromosomes than ever before, researchers at Dana-Farber Cancer Institute have identified nearly 100 chromosome regions where genes are either over-copied or missing in non-small cell lung cancer.

27 Jun 2005

Technique called phylogenetic footprinting reveals new gene regulation system

By comparing 140 sequenced bacterial genomes, researchers have uncovered a system for regulating genes essential to bacterial replication - and they did it solely by computer keystrokes and mouse clicks.

27 Jun 2005

PNNL ScalaBLAST may be used to process complex genomic sequences

A new computational tool developed at the Department of Energy's Pacific Northwest National Laboratory is speeding up our understanding of the machinery of life - bringing us one step closer to curing diseases, finding safer ways to clean the environment and protecting the country against biological threats.

21 Jun 2005

Researchers demonstrate direct transfer of terminally differentiated cell nuclei

With the advent of nuclear-transfer cloning, it is now possible to produce mice from the nuclei of differentiated cells, such as peripheral blood lymphocytes and olfactory sensory neurons.

20 Jun 2005

Scientists have tracked down the biological trigger that gives rise to Van Buchem disease

...a hereditary, disfiguring bone disorder that can cause blindness and deafness. The findings provide insight into long-range gene regulation and could lead to new treatments for osteoporosis and other crippling bone disorders.

16 Jun 2005

Research challenges the evolutionary paradigm that continuous alterations occur during the course of genome evolution

Researchers report today that regions of the human genome have been hotspots for acquiring duplicated DNA sequences - but only at specific time-points during evolution.

16 Jun 2005

Jumping genes help detemine uniqueness of individual brains

Scientists at the Salk Institute for Biological Studies may have found one explanation for the puzzling variety in brain organization and function: mobile elements, pieces of DNA that can jump from one place in the genome to another, randomly changing the genetic information in single brain cells.

15 Jun 2005

New technology developed at Cornell University could make it just as easy to identify genes

A supermarket checkout computer can identify thousands of different items by scanning the tiny barcode printed on the package. New technology developed at Cornell University could make it just as easy to identify genes, pathogens, illegal drugs and other chemicals of interest by tagging them with color-coded probes made out of synthetic tree-shaped DNA.

14 Jun 2005

If a dividing cell's activity is a pop song, then the same process in an immune cell is an extended-play dance remix

The basics of cell division are the same in both, but there's a heck of a lot more going on in immune cells, Johns Hopkins scientists have discovered.

10 Jun 2005