Effects of Provocative Testing on Phase III Migrating Motor Complex in Children

2021 ◽  
Vol Publish Ahead of Print ◽  
Author(s):  
Alisara Damrongmanee ◽  
Khalil El-Chammas ◽  
Lin Fei ◽  
Chunyan Liu ◽  
Neha Santucci ◽  
...  
1981 ◽  
Vol 59 (2) ◽  
pp. 180-187 ◽  
Author(s):  
J. E. T. Fox ◽  
N. S. Track ◽  
E. E. Daniel

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.


1987 ◽  
Vol 253 (3) ◽  
pp. G259-G267 ◽  
Author(s):  
H. J. Ehrlein ◽  
M. Schemann ◽  
M. L. Siegle

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.


1998 ◽  
Vol 114 ◽  
pp. A769
Author(s):  
E. Husebye ◽  
R. Wackerbauer ◽  
J. Bondi ◽  
M. Skard Heier

2000 ◽  
Vol 118 (4) ◽  
pp. A1200
Author(s):  
Toshiyuki Tanaka ◽  
Michael L. Kendrick ◽  
Nicholas J. Zyromski ◽  
Tobias Meile ◽  
Michael G. Sarr

1996 ◽  
Vol 41 (3) ◽  
pp. 522-527 ◽  
Author(s):  
Leonardo Marzio ◽  
Laurino Grossi ◽  
Mariassunta Falcucci ◽  
Antonio Francesco Ciccaglione ◽  
Maria Grazia Malatesta ◽  
...  

2003 ◽  
Vol 98 (1) ◽  
pp. 66-71
Author(s):  
G. Boudewijn C. Vasbinder ◽  
Marc F.J. Stolk ◽  
M.e-Yun Ke ◽  
Rick J.A. Jebbink ◽  
Gerard P. vanBerge Henegouwen ◽  
...  

2001 ◽  
Vol 281 (1) ◽  
pp. G283-G292 ◽  
Author(s):  
Toshiyuki Tanaka ◽  
Michael L. Kendrick ◽  
Nicholas J. Zyromski ◽  
Tobias Meile ◽  
Michael G. Sarr

To determine the role of vagal nerves in initiation and modulation of the gastric migrating motor complex (MMC), motor activity was recorded in four dogs before and after total abdominal vagotomy during fasting, after exogenous intravenous motilin and insulin, and after feeding. After vagotomy, a temporally coordinated cyclic gastric and small bowel MMC persisted with an unchanged period. During gastric phase III, vagotomy decreased number of contractions (42 ± 4 vs. 16 ± 2), number of groupings of contractions (14 ± 1 vs. 7 ± 1), and motility index (12 ± 1 vs. 10 ± 1) and increased the duration between groupings (1 ± 1 vs. 3 ± 1 min) ( P< 0.05 in each). Before and after vagotomy, motilin and insulin induced a premature MMC with minor changes in contractile pattern. A 200-g liver meal but not a 50-g liver meal inhibited the gastric MMC after vagotomy. A cyclic MMC persisted after vagotomy, but the contractile pattern during gastric phase III was altered. After a short recovery period, vagal innervation to the stomach modulates the pattern but not the presence of gastric interdigestive motility during phase III.


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