Sonographic demonstration of human small intestinal migrating motor complex phase III

2012 ◽  
Vol 25 (2) ◽  
pp. 198-202
Author(s):  
C. J. Liu ◽  
S. C. Huang ◽  
Y. C. Huang ◽  
C. Y. Liu ◽  
H. I. Chen
Keyword(s):  
Migrating Motor Complex ◽  
Phase Iii ◽  
Complex Phase ◽  
Motor Complex ◽  
Small Intestinal ◽  
Sonographic Demonstration

Concentration-Dependent Stimulation of Intestinal Phase III of Migrating Motor Complex by Circulating Serotonin in Humans

1998 ◽  
Vol 94 (6) ◽  
pp. 663-670 ◽  
Author(s):  
Mikael Lördal ◽  
Håkan Wallén ◽  
Paul Hjemdahl ◽  
Olof Beck ◽  
Per M. Hellström
Keyword(s):  
Small Intestine ◽  
Intestinal Motility ◽  
Low Dose ◽  
Migrating Motor Complex ◽  
Phase Iii ◽  
Motility Index ◽  
Motor Complex ◽  
Small Intestinal Motility ◽  
Respiratory Parameters ◽  
Small Intestinal

1. The influence of circulating 5-hydroxytryptamine (serotonin) on small intestinal motility was investigated in healthy volunteers. 2. Small intestinal motility was studied by means of a constantly perfused multi-channel manometry tube, connected to a computer system. 3. Intravenous infusions of either 5-hydroxytryptamine at increasing doses or saline were given over a period of 4 h. 4. 5-Hydroxytryptamine infusion dose-dependently increased plasma 5-hydroxytryptamine from approximately 2 to 10 and 25 nmol/l respectively, as well as urinary excretions of 5-hydroxytryptamine and 5-hydroxyindole acetic acid, a major 5-hydroxytryptamine metabolite. 5. The number of phase III of the migrating motor complex originating in the small intestine was dose-dependently increased by 5-hydroxytryptamine, and found to correlate to the plasma concentration of 5-hydroxytryptamine. The fraction of phase III also increased at the expense of phase II activity. In addition, 5-hydroxytryptamine increased the motility index, propagation velocity of phase III activity and the amplitude of contractions during phase III. 6. Whereas the low dose of 5-hydroxytryptamine (15 nmol · min−1 · kg−1) had no haemodynamic effects, an increase in heart rate by approximately 20 beats/min, without change in blood pressure, was observed at the higher dose (60 nmol · min−1 · kg−1). Respiratory parameters did not change during infusion of 5-hydroxytryptamine at either dose. 7. In conclusion, elevation of circulating 5-hydroxytryptamine by intravenous infusion results in more frequent and faster propagating migrating motor complexes in the human small intestine during the interdigestive period.

Relationship of plasma motilin concentration to fat ingestion, duodenal acidification and alkalinization, and migrating motor complexes in dogs

1981 ◽  
Vol 59 (2) ◽  
pp. 180-187 ◽  
Author(s):  
J. E. T. Fox ◽  
N. S. Track ◽  
E. E. Daniel
Keyword(s):  
Species Difference ◽  
Maximal Activity ◽  
Significant Rise ◽  
Migrating Motor Complex ◽  
Phase Iii ◽  
Complex Activity ◽  
Duodenal Motility ◽  
Motor Complex ◽  
Duodenal Acidification ◽  
Plasma Motilin

Plasma motilin concentrations were measured in dogs following duodenal acidification and alkalinization and gastric instillation of fat. Antral and duodenal motility were recorded concurrently using intraluminal manometry. Alkalinization of the duodenum produced an increase in antral and duodenal motility and a significant rise in plasma motilin. Alkaline infusions at 5 mL/min into the duodenum initiated phase III of a migrating motor complex both in the antrum and in the duodenum. Duodenal acid infusions produced no change in plasma motilin concentrations while inhibiting antral motility and stimulating duodenal motility for the duration of the infusion. Gastric instillation of 60 g fat produced a 25% increase above basal motilin levels at 50 min after instillation. Motilin levels monitored during spontaneous migrating motor complexes showed peak motilin levels occurring during maximal activity of the antral duodenal region in seven out of nine motor complexes examined but motilin peaks also occurred without migrating complexes being present in this area and, as well, complexes occurred when motilin was undetectable. These results taken together with our other studies in man confirm that a true species difference exists between man and dog in the hormonal motor response to duodenal alkalinization. Although a relationship appears to exist between the appearance of maximal migrating motor complex activity in the gastroduodenal area and plasma motilin concentrations in dogs as in humans, the motilin peaks are probably neither necessary nor sufficient to induce phase III activity.

Motor patterns of small intestine determined by closely spaced extraluminal transducers and videofluoroscopy

1987 ◽  
Vol 253 (3) ◽  
pp. G259-G267 ◽  
Author(s):  
H. J. Ehrlein ◽  
M. Schemann ◽  
M. L. Siegle
Keyword(s):  
Small Intestine ◽  
Retrograde Transport ◽  
Migrating Motor Complex ◽  
Phase Iii ◽  
Motor Patterns ◽  
Motor Complex ◽  
Enterogastric Reflux ◽  
Propagating Contractions ◽  
Propagation Velocities

In the canine small intestine several simple (S) and complex (C) patterns of propulsive and nonpropulsive activities were found. The nonpropulsive activity consisted of 1) stationary individual contractions (S) and 2) stationary clusters of contractions (C). Patterns leading to aboral propulsion of luminal contents were 1) propagating contractions (S), 2) propagating power contractions (S), 3) phase III of the migrating motor complex (C), and 4) migrating clusters of contractions (C). The propagation velocities of the propulsive motor patterns differed markedly; they increased in the following order: phase III, migrating clustered contractions, propagating power contractions, propagating contractions. A retrograde transport of luminal contents was produced by two different activities: 1) retrograde propagating contractions (S) and 2) retrograde power contractions (S). They were accompanied with enterogastric reflux.

The temporal relationship between phase III of the migrating motor complex (MMC) and REM sleep

1998 ◽  
Vol 114 ◽  
pp. A769
Author(s):  
E. Husebye ◽  
R. Wackerbauer ◽  
J. Bondi ◽  
M. Skard Heier
Keyword(s):  
Rem Sleep ◽  
Temporal Relationship ◽  
Migrating Motor Complex ◽  
Phase Iii ◽  
Motor Complex

Vagal innervation does not initiate the gastric migrating motor complex (MMC) but does modulate motor pattern of gastric phase III

2000 ◽  
Vol 118 (4) ◽  
pp. A1200
Author(s):  
Toshiyuki Tanaka ◽  
Michael L. Kendrick ◽  
Nicholas J. Zyromski ◽  
Tobias Meile ◽  
Michael G. Sarr
Keyword(s):  
Motor Pattern ◽  
Migrating Motor Complex ◽  
Phase Iii ◽  
Motor Complex ◽  
Vagal Innervation

Increase of swallows before onset of phase III of migrating motor complex in normal human subjects

1996 ◽  
Vol 41 (3) ◽  
pp. 522-527 ◽  
Author(s):  
Leonardo Marzio ◽  
Laurino Grossi ◽  
Mariassunta Falcucci ◽  
Antonio Francesco Ciccaglione ◽  
Maria Grazia Malatesta ◽  
...  
Keyword(s):  
Human Subjects ◽  
Migrating Motor Complex ◽  
Phase Iii ◽  
Motor Complex ◽  
Normal Human
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