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4 days of REM sleep deprivation contributes to a reduction of cell proliferation in rats
02-01-2008 · EurekAlert!Four days' exposure to a REM sleep deprivation procedure reduces cell proliferation in the part of the forebrain that contributes to long-term memory of rats.
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Keywords: days, rem, sleep, deprivation, contributes, reduction, cell, proliferation, rats, day, contribute, rat
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- Human stem cell transplants mature into neurons and make contacts in rat spinal cord
02-13-2007 · EurekAlert!
Human nerve stem cells transplanted into rats' damaged spinal cords have survived, grown and in some cases connected with the rats' own spinal cord cells in a Johns Hopkins laboratory, overturning the long-held notion that spinal cords won't allow nerve repair.
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- JCI table of contents: Dec. 3, 2007
12-03-2007 · EurekAlert!
This release contains summaries, links to PDFs, and contact information for the following newsworthy papers to be published Dec. 3, 2007, in the JCI, including: Promising approach to a more effective sunscreen; Modifying an anticancer drug makes it more specific; Giving asthma T(he)SL(i)P by blocking OX40; Treating type 1 diabetes by eliminating B cells; On the origin of the fat cell; You snooze, you don’t lose: Cellular repercussions of sleep deprivation; and others.
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- Election 2008: Sleep deprivation a tough opponent for presidential candidates
02-01-2008 · EurekAlert!
Keeping a nonstop schedule of personal appearances, interviews and strategy sessions, both the presidential candidates and their campaign staff will struggle to find adequate time for sleep, especially with Super Tuesday just days away. As a result, sleep deprivation is likely to make its mark on the campaign by causing performance impairments that could prove costly.
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- Obesity may be wired in the brain, rat study suggests
02-05-2008 · EurekAlert!
A predisposition for obesity might be wired into the brain from the start, suggests a new study of rats in the February issue of Cell Metabolism, a publication of Cell Press.
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- Study provides first evidence of neural link between sleep loss and psychiatric disorders
10-22-2007 · EurekAlert!
In the first neural investigation into what happens to our emotional stability when we lose sleep, researchers from UC Berkeley and Harvard Medical School have found that while a good night's rest can regulate our mood and help us cope with the next day's emotional challenges, sleep deprivation excessively boosts the part of the brain most closely connected to depression, anxiety and other psychiatric disorders.
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- Adolescents' use of cell phones after bedtime contributes to poor sleep
09-01-2007 · EurekAlert!
A study published in the Sept. 1 issue of the journal SLEEP, finds that cell phone use after bedtime is very prevalent among adolescents, and its use is related to increased levels of tiredness after one year.
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- Sleep-deprivation causes an emotional brain 'disconnect'
10-22-2007 · EurekAlert!
Without sleep, the emotional centers of the brain dramatically overreact to negative experiences, reveals a new brain imaging study in the Oct. 23 issue of Current Biology, a publication of Cell Press. The reason for that hyperactive emotional response in sleep-deprived people stems from a shutdown of the prefrontal lobe -- a region that normally keeps emotions under control.
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- Langerhans cell histiocytosis
08-13-2007 · EurekAlert!
Frederic Geissmann and colleagues find that Langerhans cell accumulation in Langerhans cell histiocytosis results from survival rather than uncontrolled proliferation, and is associated with the expansion of regulatory T cells.
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- Cell death in sparrow brains may provide clues in age-related human diseases
09-17-2007 · EurekAlert!
A remarkable change takes place in the brains of tiny songbirds each year, and some day the mechanism controlling that change may help researchers develop treatments for age-realted degenerative diseases of the brain such as Parkinson's and dementia.
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- Kaiser Permanente/Harvard Medical School study links lack of sleep to weight gain for new moms
11-19-2007 · EurekAlert!
Mothers who reported sleeping five hours or less per day when their babies were six-months-old had a threefold higher risk for substantial weight retention (11 pounds or more) at their baby’s first birthday than moms who slept seven hours per day, according to a new study by Kaiser Permanente and Harvard Medical School/Harvard Pilgrim Health Care.
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