ArticleJournal of comparative physiology. B, Biochemical, systemic, and environmental physiology2007
High definition mapping of circular and longitudinal motility in the terminal ileum of the brushtail possum Trichosurus vulpecula with watery and viscous perfusates.
Article in Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
What it found
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Who cites it
21 citing papers in PubMed.
- Effect of polyphenols fromHeliyon · 2024Article
- Tracking Gut Motility in Organ and Cultures.Methods in molecular biology (Clifton, N.J.) · 2023Article
- A myogenic motor pattern in mice lacking myenteric interstitial cells of Cajal explained by a second coupled oscillator network.American journal of physiology. Gastrointestinal and liver physiology · 2020Article
- Image velocimetry and spectral analysis enable quantitative characterization of larval zebrafish gut motility.Neurogastroenterology and motility · 2018Article
- The IgCAM CLMP regulates expression of Connexin43 and Connexin45 in intestinal and ureteral smooth muscle contraction in mice.Disease models & mechanisms · 2018Article
- Quantifying Patterns of Smooth Muscle Motility in the Gut and Other Organs With New Techniques of Video Spatiotemporal Mapping.Frontiers in physiology · 2018Article
- Spatiotemporal Mapping Techniques Show Clozapine Impairs Neurogenic and Myogenic Patterns of Activity in the Colon of the Rabbit in a Dose-Dependent Manner.Frontiers in pharmacology · 2017Article
- Ex vivo motility in the base of the rabbit caecum and its associated structures: an electrophysiological and spatiotemporal analysis.Journal of physiology and biochemistry · 2016Article
- Spatiotemporal Mapping of Motility in Ex Vivo Preparations of the Intestines.Journal of visualized experiments : JoVE · 2016Article
- A review of mixing and propulsion of chyme in the small intestine: fresh insights from new methods.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2015Review
- Motility patterns of ex vivo intestine segments depend on perfusion mode.World journal of gastroenterology · 2014Article
- Article
- Fluid mechanical consequences of pendular activity, segmentation and pyloric outflow in the proximal duodenum of the rat and the guinea pig.Journal of the Royal Society, Interface · 2013Article
- Effects of hydrogen sulphide on motility patterns in the rat colon.British journal of pharmacology · 2013Article
- Spatiotemporal mapping of ex vivo motility in the caecum of the rabbit.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2012Article
- Quantification of the effects of the volume and viscosity of gastric contents on antral and fundic activity in the rat stomach maintained ex vivo.Digestive diseases and sciences · 2010Article
- Spatiotemporal mapping of the motility of the isolated chicken caecum.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2009Article
- A novel videomicroscopic technique for studying rat ureteral peristalsis in vivo.World journal of urology · 2009Article
- Physical characteristics of digesta and their influence on flow and mixing in the mammalian intestine: a review.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2008Review
- High-definition spatiotemporal mapping of contractile activity in the isolated proximal colon of the rabbit.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2008Article
Corrections and comments
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Longitudinal and radial movements during spontaneous contractions of isolated segments of terminal ileum of the brushtail possum, a species of arboreal folivore, were studied using high definition spatiotemporal maps. Segments obtained from specimens were continuously perfused with solutions of various apparent viscosities at 3 cm and 5 cm hydrostatic pressure. A series of sustained tetrodotoxin-sensitive peristaltic events occurred during perfusion. The leading edge of each peristaltic event progressed by a succession of rhythmic surges of circular contraction with concerted concurrent phasic longitudinal contractions. Three types of peristaltic event were observed, with differing durations of occlusion and patterns of cyclic, in phase, circular and longitudinal contractions. Each peristaltic event was preceded by a change of shade on the D map that indicated circumferential dilatation. Differences in the slopes of these phasic shade changes from those occurring during peristalsis indicate that this distension is passive and likely results from aboral displacement of fluid. Tetradotoxin insensitive longitudinal contraction waves of frequency 9.2 min(-1) occurred during and in the absence of peristalsis, originating at a variety of sites, and propagating either in an orad or aborad direction but predominantly in the latter. Perfusion with 1% guar gum, at 5 cm hydrostatic pressure caused the lumen to become distended and the generation of peristaltic events to cease pending reduction of the hydrostatic head to 3 cm but longitudinal contractile activity was preserved. Neither the frequencies nor the rates of progression of circular and longitudinal contractile events, nor the temporal coordination between these events, varied with the apparent viscosity of the perfusate or altered in a manner that could facilitate mixing.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.