Time-lapse movies show brain cells move like a two-stroke engine
...ts produced time-lapse movies that show nerve cell migration in unprecedented clarity and detail. The finding, ...sufficient for neuronal migration." In humans, the migration of young neurons to the brain's cerebellar cortex, which controls movement and balance, continues un...Early life stress harms mental function and immune system in later years
...n such processes as division, differentiation, and migration of neurons and development of connections between neurons. Serotonin reuptake inhibitors work by blocking the serotonin transporter (5-HTT) and thus enhancing serotonin transmission. The investigators used a strategy involving drug treatm...JCI table of contents November 1, 2004
...or metastasis as they have been shown to block the migration of some cell types in culture. Michael Klagsbrun and colleagues, from Harvard Medical School, examined semaphorin 3F (SEMA3F) expression in human metastatic cancer cell lines and found that it was markedly lower both in cell culture and in implanted ...Tropical birds sensitive to environmental cues that can be impacted by global warming
...Studies show changes in the timing of breeding and migration in birds." Global warming could be the reason, he said, and, if the brain is truly sensitive to environmental cues, the changes due to global warming could have "effects we haven't thought of before." While Moore's research was driven primarily by cu...Avian cholera could spread from Great Salt Lake
...an cholera beyond the Great Salt Lake during their migration to wintering areas." Each fall about 1.5 million eared grebes congregate at the Great Salt Lake as they migrate south. Avian cholera is the most common infectious disease among wild North American waterfowl. Once birds are infected with P. multocida......e in NCAM-deficient mice as the result of impaired migration of neural precursors through a zone called the rostral migratory stream and swell with cells that have failed to reach their normal destination; this phenotype is seen in mice only weakly lacking GFR1 (which is thought by some to regulate NCAM-mediat...Down Syndrome protein reduces tumor growth
...mation, blood vessel diameter, blood clotting, the migration of circulating white blood cells, and the normal release of molecules involved in inflammation "Because endothelial cells are so active, any perturbation in their function may have undesirable effects," explains Dr. Takashi Minami of the University o...Injured whooping crane recovering at USGS Patuxent Wildlife Research Center
...es used in release programs such as the ultralight migration program and non-migratory release project in centr...lorida. All of the whoopers used in the ultralight migration are raised at Patuxent and given their initial training there. The other facilities in the whooping ...Heart protein could be used to repair damage caused by heart attack
... during the heart's development. It encourages the migration of heart cells and affects those cells' survivabil...on with two other proteins to promote survival and migration of heart muscle cells by activating the protein Akt/Protein Kinase B. Akt/PKB, when active, promotes...The lost genetic legacy of American gray wolves
...ems, could conceivably be reversed through natural migration and reintroduction from surviving wolf populations in Canada. Unfortunately, the new research indicates that the genetic diversity of historic US wolves was much greater than that of contemporaneous Canadian wolves because historic US wolves lived i...Study in Royal Society journal on possible genetic factors in social responsiblity
...d to reveal historical aspects such as patterns of migration and growth. A critical assumption is that the sequences evolve in a neutral fashion, unaffected by natural selection. Here, mitochondrial DNA sequences from tits of the genus Parus were tested for signatures of natural selection. Although there app...New method to measure ancient land elevation developed by Field Museum scientist
... can act as important barriers to plant and animal migration and dispersal resulting in isolation of plant and animal populations on opposite sides of mountain chains. Therefore, knowing exactly when in the geological past the mountains of today's world reached their current elevations is relevant to our under...Stem cells may hold promise as multiple sclerosis cure
... mice improved. The ability to monitor the migration of the transplanted cells is vital if the treatment is going to be adapted to MS patients. "The development if this MRI-based method to track labeled cells non-invasively represents a crucial step toward the application of this therapy to humans," Dr...Science to restore the nation's ecosystems
... populations. We describe three barriers to salmon migration and the different approaches that are being implemented to aid in the recovery of threatened and endangered salmon populations in the Columbia River Basin. Thurs, Dec. 9 Understanding the Role of Natural Processes in Guiding Human Restoration Eff...Whooping crane shot in Kansas dies
... Mexico, was shot as he traveled through Kansas on migration south. The bird had 11 pellets in its body and a broken wing. Another male crane was shot during this incident and did not survive. The injured crane received extensive treatment at Kansas State University before being sent to Patuxent on Thurs., Nov...JCI table of contents, December 15 2004
...e growth of new blood vessels, and epithelial cell migration in the intestine. In the December 15 issue of the Journal of Clinical Investigation , Jiangping Wu and colleagues from Notre Dame Hospital, Montreal, now delve further into the role of Eph kinases in the immune system by showing that EphB6 modulate...Latest census finds more American pika populations disappear as climate warms
...efuge from the pressures of climate change because migration across low-elevation valleys represents an incalculably high risk for them and perhaps an impossibility under current climatic conditions. Results from Dr. Beever's study published last year suggest that climate change may be interacting with other ...Shedding feathers early may enhance sex appeal, new songbird study shows
...dings that molting in some songbirds occurs after migration has begun, and that their new feathers are duller in colour were surprising." The study will be published Dec. 24 in the journal Science . Until now scientists have assumed that most species of migratory birds molt before they migrate. The team dis...JCI table of contents, 3 January 2005
... TITLE: Atypical PKC-zeta regulates SDF-1mediated migration and development of human CD34+ progenitor cells. AUTHOR CONTACT:Tsvee Lapidot The Weizmann Institute of Science, Rehovot, Israel. Phone: 972-8-9342481; Fax: 972-8-9344141; E-mail: Tsvee.Lapidot@weizmann.ac.il . A PDF of this articl......ulation of cytoskeleton dynamics in cell adhesion, migration and polarity. With the prize, Alan Hall will further investigate the role of certain enzymes, known as small GTPases and guanine nucleotide exchange factors, in relation to the cytoskeleton, as they may play an important role in metastatic tumour cel...