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Tag: "line" at biology news

Bone marrow stem cells may heal hearts even years after heart attacks

...entiate to become heart muscle cells or cells that line blood vessels. In addition, chemical signals from the bone marrow stem cells may stimulate the growth of surviving heart muscle tissue, prompt stem cells already within the heart into action, or perhaps fuse with and revitalize damaged heart muscle c...

UQ scientists break new ground in fight against infection & chronic disease

... journal Science. It involves cells in the front line of defence against infection, called macrophages, releasing messengers to fight and kill disease-causing microbes. IMB researchers Professor Jennifer Stow, Dr Rachael Murray, Mr Jason Kay and Mr Daniele Sangermani discovered macrophages use a singl...

Emerging staph strains found to be increasingly deadly and deceptive

...percent of all white blood cells and are the first line of defense against bacteria. Scientists know that community-acquired strains differ from hospital strains, but they don't know why the community strains cause more serious infection in otherwise healthy people. The work also identified specific S. a...

Genomatix Microarray Analysis Pipeline achieves Affymetrix GeneChip compatible?status

...e with the Affymetrix technology. The Genomatix line of products which achieved GeneChip-compatible TM status consists of ChipInspector, ChipInspector TL, ElDorado, GEMS Launcher, and BiblioSphere PathwayEdition. With those products Genomatix provides a broad set of solutions for Affymetrix GeneChip u...

NC State researchers redesign life for Mars and beyond

... wayit does in its original organism. "The bottom line is that we were able to produce the P. furiosus superoxide reductasegene in a model plant cell line and to show that the enzyme has the same function and properties of the native P. furiosus enzyme," ...

Researcher uncovers details of how cancer spreads

...cts. Guan and his colleagues used a cultured cell line to study cancer, which are mouse cells grown in the lab for research purposes. The researchers used these cells to create a model system for cancer cells, which means its basic pathway exists in real-world systems, while the actual proteins that act ...

Researchers learn how blood vessel cells cope with their pressure-packed job

...ow repetitive stretching of endothelial cells that line arteries can make them healthy and resistant to va...ow repetitive stretching of endothelial cells that line arteries can make them healthy and resistant to vascular diseases. Bioengineering researchers at UC...

New factor implicated in allergy and asthma attacks

... a single pollen-carried enzyme and the cells that line airways. And, the researchers say, if an effective way can be found to reduce that damage--called "oxidative stress"--new and powerful allergy and asthma therapies may result. "There has been a lot of discussion about oxidative stress exacerbating a...

The earliest animals had human-like genes

...olve at very different rates, and the evolutionary line that produced humans seems to be among the slowest. The result, according to a new study by scientists at the European Molecular Biology Laboratory (EMBL), is that our species has retained characteristics of a very ancient ancestor that have been los...

UT Southwestern researchers unravel control of growing blood vessels

... basic mechanism by which smooth muscle cells that line the blood vessels can grow ?sometimes abnormally ?suggesting methods of treatment for various coronary diseases. Abnormal growth of cells inside blood vessels is involved in hypertension, coronary artery disease, tumors called leiosarcomas and other ...

Embryonic stem cells accrue genetic changes

... presumably became entrenched in a particular cell line because they conferred some advantage as the cells were grown in laboratory dishes. Whether the changes affect the stem cells' abilities to become other cell types is also unknown. Although research with human embryonic stem cells is still in the l...

Student scientists create living bacterial photographs

...xt innovation--bacteria that can find and create a line around the edges of an image, a process that requires the bacteria to communicate with each other. They're also working on experiments using a laser to turn on and off single cells, which would give them great control. "If we can hit the cell with...

Ancient anthropoid origins discovered in Africa

...tures from which the subsequent "crown" anthropoid line arose."The finding of these parapithecoids from such an ancient time confirms that crown anthropoids -- a group including all modern anthropoids -- have their earliest known beginnings in Africa," said Simons. "They show that findings by other resear...

Why Christmas trees are not extinct

...eter versus one billionth of a meter. The bottom line is that conifers have shorter conduits and fewer valves, both of which would increase resistance to water flow, "but they compensate for that because each individual valve is so much more efficient," Sperry says. "The flow resistance through a valve ...

Polymer gel can block toxic leakage problem in gene therapy

...-like mixture made it hard to inject. "The bottom line is that when people try to do gene therapy on cancer they must inject the genes into the tumor," Yuan said. "One way would be to try and inject the genes into the bloodstream. But that won't work because the virus particles are too large to get throu...

Scientists observe how a close bond activates the immune system

...gs of T cells, the body's most specific and potent line of defense against viruses, bacteria, and other pathogens, says Dr. Dustin who is also an investigator in the molecular pathogenesis program at NYU's Skirball Institute of Biomolecular Medicine. The study, published in the November 18, 2005, issue...

Plants have a double line of defence

...ss against fungal diseases. There is still another line of defence which they have to get through. If PEN2...uring plant tissue from infection. In this deadly line of defence, very different proteins play a key role ?particularly EDS1, PAD4 and SAG101. They were a...

Genetic defenders protect crops from fungal disease

...ing cell walls in the first place. If this first line of defense breaks down, as it does in about 5 to 25 percent of normal Arabidopsis plants (depending on the mildew species), a second set of genes jumps into the fray. These genes, called EDS1, PAD4, and SAG101, work together in a complex inside the c...

Membrane research opens window to benefits for plants, humans

...ajkorshid's lab has identified how water molecules line up in single file and move as if dancing through open water channels. In less than a second, billions of water molecules can move through a channel. The growing knowledge of how aquaporins regulate water passage eventually could help agricultural pr...

Missing fossil link 'Dallasaurus' found

...nce of Turner's fossil as the origin of an extinct line of lizards with an evolutionary twist: a land-dwelling species that became fully aquatic. Turner took the remains to paleontologists at the Dallas Museum of Natural History, but it took several years before scientists dubbed the find Dallasaurus tur...

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