Abstract:
:Plasma renin activity (PRA) was determined in plasma samples obtained approximately at 6-min intervals during consecutive non-rapid eye movement sleep (NREMS) and rapid eye movement sleep (REMS) periods in rats chronically implanted with EEG electrodes, a brain thermistor, and an intracardiac catheter. PRA was low in REMS and high in NREMS: this difference was statistically significant. The PRAs in wakefulness and NREMS were not different. Sleep-associated variations in systemic blood pressure (BP) were also recorded in a group of rats implanted with a chronic aortic catheter. During REMS, large oscillations superimposed on a tonic rise in BP were observed, and the end of REMS was followed by an abrupt fall in BP. This is the first demonstration of sleep-associated variations in PRA in a species other than man. The changes in BP in the rat during REMS confirm previous reports and, unlike those in many other species, are similar to those previously described in humans. The rat therefore provides a model for study of the mechanisms of the sleep-related variations in PRA and BP. The changes in PRA may reflect a regulatory response to variations in BP or may result from central mechanisms, e.g. the sleep-associated changes in serotonergic activity.
journal_name
Neurosci Lettjournal_title
Neuroscience lettersauthors
Obál F Jr,Beranek L,Brandenberger Gdoi
10.1016/0304-3940(94)90940-7subject
Has Abstractpub_date
1994-09-26 00:00:00pages
83-6issue
1-2eissn
0304-3940issn
1872-7972pii
0304-3940(94)90940-7journal_volume
179pub_type
杂志文章abstract::Spasticity in chronic hemiparetic stroke patients has primarily been treated pharmacologically. However, there is increasing evidence that physical rehabilitation can help manage hyper-excitability of reflexes (hyperreflexia), which is a primary contributor to spasticity. In the present study, one chronic hemiparetic ...
journal_title:Neuroscience letters
pub_type: 杂志文章
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journal_title:Neuroscience letters
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journal_title:Neuroscience letters
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journal_title:Neuroscience letters
pub_type: 杂志文章
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journal_title:Neuroscience letters
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Neuroscience letters
pub_type: 杂志文章
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journal_title:Neuroscience letters
pub_type: 杂志文章
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journal_title:Neuroscience letters
pub_type: 杂志文章
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2012.04.056
更新日期:2012-06-14 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章
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journal_title:Neuroscience letters
pub_type: 杂志文章
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2014.09.021
更新日期:2014-11-07 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章
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pub_type: 杂志文章
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journal_title:Neuroscience letters
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journal_title:Neuroscience letters
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journal_title:Neuroscience letters
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pub_type: 杂志文章
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journal_title:Neuroscience letters
pub_type: 杂志文章
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journal_title:Neuroscience letters
pub_type: 杂志文章,评审
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2015.06.044
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journal_title:Neuroscience letters
pub_type: 杂志文章
doi:10.1016/j.neulet.2007.01.063
更新日期:2007-04-12 00:00:00
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journal_title:Neuroscience letters
pub_type: 杂志文章
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