Tag: "disturbances" at biology news
Alzheimer's disease is not accelerated aging
...be involved in memory impairment. "We see profound disturbances
in the medial temporal lobe memory system across methods--in studies of volume, function, and now showing what we think is the pathology in Alzheimer's disease," Buckner said. A paper published in the September 15, 2004, issue of Cerebral Cortex ...
Warmer weather, human disturbances interact to change forests
...r the composition of northern Wisconsin's forests, disturbances
such as logging also will play a critical role in ..., Scheller says - for at least the next 100 years, disturbances
such as harvesting or wind damage will continue to play a very important role in shaping forests. "H...
New view of leukemia cells identifies best treatment options, Stanford researchers say
...lls - or may get destroyed altogether. These disturbances
aren't visible just by looking at a tumor sample. Nolan got his first glimpse inside the cell's machinery using a technique developed by postdoctoral scholar Omar Perez, PhD. He harnessed a decades-old device called flow cytometry to act as a hidden ...
Why some neonates need caffeine
...c effect of caffeine is not related to sleep state disturbances
but rather to a direct action on processes controlling the infant's respiration. Premature neonates are vulnerable to a wide range of disorders. This study provides an important answer as to why a common treatment works in alleviating a problem of "...
Anxiety during pregnancy affects child behavior
...how the timing, kind and duration of environmental disturbances
are related to altered neurobehavioral development, are still unresolved. Evidence from this and other studies, however, provide an impetus for developing prevention, intervention and support programs for highly anxious pregnant women. These program...
Study probes ecosystem of tree holes
...nd disturbance. "Predators, resources, and disturbances
are the most common factors that affect communitie...aid. "Not surprisingly, predators, resources, and disturbances
all had really strong effects, but the interesting finding was how these various factors interacted....
Biological oceanographers examine 'regime shifts' in complex marine ecosystems
...ts in the ocean may be that, until recently, major disturbances
in the oceans were of natural rather than anthropo...ade) origin and our data collection following such disturbances
has been insufficient to identify possible changes in ecosystems," said Collie. "The assumption tha...
Delirium high in ICU patients, leads to death, morbidity
...mia, disregulation of blood flow, and inflammatory disturbances
due to sepsis. Treatments may address any of these potential causes that are modifiable in the ICU setting, he said....
Brood X cicadas will cause limited damage to trees, yard plants across eastern U.S.
...ill also explore the broader impacts of ecological disturbances
on forests. Clay hopes to eventually secure long-term funding for the project, right up to Brood X's next above-ground appearance in 2021. "Given that Brood X is not going to emerge for another 17 years, this opportunity represents a once-in-a-resea...
Activity of calcium-handling gene appears to prevent cardiac arrhythmias
...also help prevent arrhythmias, sometimes-dangerous disturbances
in heart rhythm, according to a study from the Mas...ecause of existing heart disease or prevent rhythm disturbances
that can occur after percutaneous coronary interventions," says Roger J. Hajjar, MD, of the CVRC and...
Deficits associated with prenatal alcohol exposure can be seen as early as infancy
...he arousal difficulties may result in behavioral disturbances
and meltdowns from being over-aroused and not being able to appropriately calm down when needed." These findings also help illuminate a somewhat controversial area of alcohol research, the differences and similarities between children exposed to alco...
Ontario researchers see increase in taste and odour-causing algae problems
... Queen's. "We present new evidence suggesting that disturbances
such as acid rain and climatic warming may produce significant, unprecedented changes to the algae of inland lakes, with important implications for water quality." Lake water that smells and tastes foul can be traced to a variety of sources, includin...
Leave land alone following natural disasters, say researchers
...g disasters that require human care, these natural disturbances
are important ecosystem processes that should be l...ound that salvage harvest operations after natural disturbances
can threaten some organisms when large quantities of biological legacies are removed. "This may resu...
Small amounts of alcohol or anesthetics may damage the developing brain
...g a likely explanation for the learning and memory disturbances
associated with the human fetal alcohol syndrome. "In all of these studies, we have found that drugs that enhance GABA inhibition or that inhibit glutamate excitation can trigger massive cell suicide in the developing brain," Olney says. Olney beli...
MIT team discovers memory mechanism
...ping and adult brain, raising the possibility that disturbances
in the mechanism identified in this study may contribute to these disorders, said Tonegawa. The next step will be to determine whether abnormalities in the regulation of protein synthesis can be identified in the affected brain regions in specific ne...
New findings bring mixed blessings to those looking to combat jet lag
...has experienced jet lag knows that it causes sleep disturbances
and daytime sleepiness, and can impair performance after landing. A team of researchers has investigated the effects of slow release caffeine (SRC) and melatonin (Mlt) on recovery sleep and daytime sleepiness after a seven-time zone eastbound flight ...
Scripps Research receives $3 million anonymous donation
...prosate to address the debilitating mood and sleep disturbances
suffered by alcoholics....
JCI table of contents, December 15 2003
...malfunctioned and these mice exhibited significant disturbances
in bone structure, including reduced trabecular and cortical bone thickness. These data demonstrate the key function of TRPV5 in active Ca2+ reabsorption and its essential role in Ca2+ homeostasis. TITLE: Renal Ca2+ wasting, hyperabsorption, and...
Childhood sleep-disordered breathing severity related to tonsil size, oropharyngeal volume
...n 7-12 years of age with sleep-related respiratory disturbances
of varying severity. The researchers found that ch...ed of children with a total absence of respiratory disturbances
during sleep was not used and the researchers' decision not to sedate the children for the imaging p...
Complement inhibitor decreases heart attacks and death in men following cardiac surgery
...rse events included anemia, platelet disorders and disturbances
of cardiac function and rhythm, all of which are typically observed following cardiac surgery. Alistair Wheeler, M.D., Vice President of Medical Affairs at AVANT Immunotherapeutics commented, "This study demonstrates that inhibiting complement activa...
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