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Tag: "mature" at biology news

Left-right wiring determined by neural communication in the embryonic worm

... mapped, was completely different from that of the mature animal. "A large number of embryonic neurons are heavily interconnected by gap junctions," says Bargmann, who is also an HHMI Investigator. "They all grow to the midline, communicate with each other, and create a conduit of information that links tog...

Thymus transplants gives hope to babies with fatal immune disease

... like a thymus gland. Within three to four months, mature T cells begin to appear in the bloodstream. The latest Duke analysis followed the first 54 children with DiGeorge anomaly referred to Duke for possible thymus transplantation. Of those, 44 received the procedure. So far, 32 of the children who rec...

World's leading scientists announce creation of 'Encyclopedia of Life'

...the 1990s. However, Internet technology needed to mature to allow fast and efficient creation of a comprehensive Encyclopedia. While specific Encyclopedia of Life efforts, including the scanning of key research publications and data, have been underway since January 2006, work has accelerated due to the s...

UQ research heralds vaccine technology breakthrough

...infants in their first three months of life. The mature paediatric market for an RSV vaccine has been estimated at approximately US$800 million (LeadDiscovery Ltd, 2004). Professor Tindle said the importance of the research project was double-barrelled because, along with helping children, it included f...

Newborn neurons like to hang with the 'in' crowd

...ight into the fray and preferentially reach out to mature brain cells that are already well connected within...ections between brain cells but as the new neurons mature over time they get emboldened and muscle out the old guys. "Adding new neurons could be a very probl...

Brain's white matter -- More 'talkative' than once thought

... precursor cells (OPCs), whose main role when they mature into oligodendrocytes is to wrap themselves around and insulate nerves with a whitish coat of protective myelin. The immature cells simply hang around and divide very slowly, waiting to be spurred into action. To learn more about OPCs that reside...

Human stem cell treatment restores motor function in paralyzed rats

...lanted human spinal stem cells survived and became mature neurons, according to Marsala. A second study was conducted over a three-month period, with similar results. “Other human stem cell transplants in the spinal cord have focused on repairing the myelin-forming cells,” said co-author Karl Johe, a res...

Researchers demonstrate way to control tree height

...g poplar trees, which grow rapidly and can reach a mature height of 150 feet or more, that were anywhere from about 15 feet to a few inches tall after two years of growth. The smallest of them could be difficult to even find, tiny little “shrublets” among the flowers in the field site. The manipulation o...

University of Pittsburgh School of Medicine researchers develop 'off-the-shelf' vascular grafts

...ibiting tissue formation that is consistent with a mature artery. According to Dr. Vorp, these findings in a rat demonstrate the feasibility of developing MDSC-seeded tissue-engineered vascular grafts for eventual human application. “The next step is to demonstrate the use of the tissue-engineered blood ...

Bigger horns equal better genes

...of their genetic diversity. However, once the ibex mature to the age when they begin competing for reproductive mates (7 to 12), horn length varies according to genetic diversity: the greater the diversity, the greater the length of the horns. The researchers believe the horn length discrepancies are e...

Researchers track how spores break out of dormant state

... fibrous cell wall structure of newly emerging and mature vegetative cells, consisting of a network of nanometer-wide peptidoglycan fibers. “These results show that dynamic AFM is a promising tool to investigate the formation and evolution of the bacterial cell wall,” Malkin said....

Cigarette smoke alters DNA in sperm, genetic damage could pass to offspring

...iversity, studied the spermatogonial stem cells of mature mice that had been exposed to cigarette smoke for either six or 12 weeks to look for alterations in a specific stretch of repeated portions of DNA, called Ms6-hm, which does not contain any known genes. The “smoking” mice were exposed to two cigarett...

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