Biliary and pancreatic secretory component of the migrating myoelectric complex in the pig. Effect on intraduodenal pH

Abello, Jacques; Laplace, J.P.; Corring, T.; Gougis, Sylvette; Brachet, Georgette; Cointepas, F.

doi:10.1051/rnd:19880608

Cited by 6 publications

(4 citation statements)

References 16 publications

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“…Recent studies have revealed that pancreatic secretion in preruminant calves is periodic (Zabielski et al 1993;Zabielski, 1994). This pattern is to some extent similar to the periodic pancreatic secretion (PPS) observed in dogs (Boldyreff, 191 1;Magee & Naruse, 1983;Konturek et al 1986), pigs (Abello et al 1988;Kiela et al 1996), rats (Onaga et al 1993) and human subjects (Vantrappen et al 1979). It is manifested by cyclically recurring fluctuations in the secretion of pancreatic juice concomitant with the migrating myoelectric complex (MMC) of the duodenum.…”

supporting

confidence: 62%

Kinetics of pancreatic juice secretion in relation to duodenal migrating myoelectric complex in preruminant and ruminant calves fed twice daily

et al. 1997

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Daily secretion of pancreatic juice, including postprandial responses to food, was investigated in two groups of calves: preruminant (fed with liquid food) and ruminant (fed with solid food). Male Friesian calves (1 week old and 6 weeks old) were surgically fitted with a pancreatic duct catheter, duodenal cannula and two duodenal electrodes. Continuous 24 h collections of pancreatic juice and myoelectrical recordings were performed with minimal restraint and disturbance of animals. In both groups of calves clear periodic fluctuations in pancreatic juice secretion (volume, protein output and trypsin activity) coinciding with duodenal migrating myoelectric complexes (MMC) were recorded. Secretion of juice per cycle and per day was greater in ruminant calves, but the frequency and amplitude of cycles were lower in this group. There were no differences between day and night-time preprandial pancreatic cycles and duodenal MMC in preruminant calves, whilst in ruminant calves, evening MMC were longer than morning MMC. The pancreatic cephalic phase (increase of volume flow, protein output and trypsin activity during and just after food intake) was significant only in preruminant calves following morning feeding. Postprandial pancreatic cycles did not differ from preprandial cycles, except the pancreatic cycle (juice volume and trypsin activity) in which food was offered in preruminant calves. No gastric or intestinal phase was observed in either group of calves. In conclusion, biological cycles of the gastrointestinal tract are present in both preruminant and ruminant calves, and these cycles evolve along with the change from liquid to solid food.

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supporting

confidence: 62%

Kinetics of pancreatic juice secretion in relation to duodenal migrating myoelectric complex in preruminant and ruminant calves fed twice daily

et al. 1997

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“…Further experiments led us to conclude that a true biliary and pancreatic secretory component of MMC exists in the pig [2]. Bile secretion is always minimal during duodenal quiescence, and increases after the start of the ISA phase to reach a maximum at the beginning of the RSA phase, i.e.…”

Section: Motor and Secretory Coordination In The Gastroduodenal Areamentioning

confidence: 86%

“…min -1 ) at the onset of the RSA phase. However, the major role of the gastric acid outflow to determine the cyclical variation of intraduodenal pH, and the role of bile and pancreatic secretions in the neutralisation of the duodenal chyme were simultaneously confirmed, as the cyclical variation of pH took place within a much more acid range during biliary and pancreatic diversion [2].…”

Section: Motor and Secretory Coordination In The Gastroduodenal Areamentioning

confidence: 98%

Forty years of achievement in french research on digestive physiology in the pig

Laplace¹,

Aumaı̂tre²,

Rérat³

2001

Reprod. Nutr. Dev.

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-The contribution of the research group set up by Rérat in the early 1960s in Jouy-en-Josas, and then expanded to Rennes, is summarised. As digestive processes are a major key to the nutritional status of monogastric animals, original methodologies based on advanced experimental surgery were developed in the pig to quantify the digestion and absorption yield, to know their factors of variation, and to understand their physiological and nutritional consequences. The group also extended its expertise to the control of food intake, the role of the nervous system and regulatory peptides, and several biomedical gut-related topics. pig / digestion / absorption / neurohumoral regulation / adaptationRésumé -Réalisations et succès de la recherche française : quarante ans de physiologie digestive chez le porc. Dès le début des années 60, un groupe de recherches a été constitué à l'initiative de A. Rérat à Jouy-en-Josas pour étudier divers aspects de la physiologie digestive chez le porc. Leur exploration a fourni des clés essentielles pour la maîtrise du statut nutritionnel chez cette espèce monogastrique, et un instrument d'amélioration de la production porcine. Ce groupe s'est élargi au fil des années et a même essaimé dans les années 80, notamment à Rennes. Il a apporté une contribution essentielle par le développement de méthodologies nouvelles généralement basées sur une chirurgie expérimentale très élaborée. Ces approches ont fourni de nombreux travaux originaux qui ont permis de décrire les processus de digestion (motricité, transit, sécrétions, hydrolyses enzymatiques

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“…In conscious pigs, pancreatic secretion exhibits a biphasic circadian pattern with a phase of basal secretion and a phase of meal-related enzyme-rich secretion. Basal pancreatic secretion is periodic and changes in parallel with duodenal motor activity (Abello et al 1988). Pancreatic secretion increases in both volume and enzyme concentration following food ingestion (Pierzynowski et al 1999).…”

Section: Discussionmentioning

confidence: 99%

Digesta transit in different segments of the gastrointestinal tract of pigs as affected by insoluble fibre supplied by wheat bran

Wilfart

Montagné

Simmins³

et al. 2007

Br J Nutr

164

109

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Digestibility is the result of two competing processes: digestion and digesta transit. To develop or parameterise mechanistic models of digestion, both processes have to be quantified. The aim of this study was to determine the effect of insoluble dietary fibre on the transit in the gastrointestinal tract of pigs. Six barrows (33 kg initial body weight and fitted with two simple T-cannulas at the proximal duodenum and distal ileum) were used in a double 3 × 3 Latin square design. Pigs were offered diets differing in total dietary fibre content (170, 220 and 270 g/kg DM) at 4 h intervals. A single meal marked with YbO2and Cr-EDTA was used to determine the kinetics of markers concentrations of the solid and liquid phases, respectively. The mean retention time (MRT), calculated by the method of the moments, averaged 1, 4 and 38 h in the stomach, small intestine and large intestine, respectively. Increasing the insoluble fibre content in the diet had no effect on MRT in the stomach and decreased the MRT of both phases in the small intestine (P < 0·05). In the large intestine, increasing the insoluble fibre content decreased the MRT of the liquid phase (P = 0·02) and tended to decrease the MRT of the solid phase (P = 0·06). Transit of the solid phase in the large intestine was 4–8 h slower than transit of the liquid phase. Analysis of marker excretion curves indicated that the small and large intestine should be represented mathematically to have both a tubular (propulsion) and compartmental (mixing) structure.

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Biliary and pancreatic secretory component of the migrating myoelectric complex in the pig. Effect on intraduodenal pH

Cited by 6 publications

References 16 publications

Kinetics of pancreatic juice secretion in relation to duodenal migrating myoelectric complex in preruminant and ruminant calves fed twice daily

Kinetics of pancreatic juice secretion in relation to duodenal migrating myoelectric complex in preruminant and ruminant calves fed twice daily

Forty years of achievement in french research on digestive physiology in the pig

Digesta transit in different segments of the gastrointestinal tract of pigs as affected by insoluble fibre supplied by wheat bran

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