Effects of diets containing casein and rapeseed on enzyme secretion from the exocrine pancreas in the pig

Valette, Pascale; Malouin, H.; Corring, T.; Savoie, L.; Gueugneau, Anne-Marie; Bérot, Serge

doi:10.1079/bjn19920025

Cited by 35 publications

(21 citation statements)

References 26 publications

(17 reference statements)

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“…Indeed, casein is a less potent stimulant of pancreatic secretion than a SI in rats [25,26]. Comparable findings were reported in pigs fed casein versus rapeseed [27] and in mice fed casein versus a SI [28]. We measured a lower specific activity of lipase in the pancreata of rats fed the SMM diet than in those of rats fed the PI diet.…”

Section: Discussionsupporting

confidence: 55%

Physiological Effects of a Pea Protein Isolate in Gnotobiotic Rats: Comparison with a Soybean Isolate and Meat

Lhoste

Mouzon²,

Andrieux³

et al. 1998

Ann Nutr Metab

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Pea proteins have been considered for the introduction into the human diet only recently. This protein source was tested on nutritional and digestive parameters in heteroxenic male Fischer rats inoculated with a human faecal microflora from a methane producer. Compared to soybean proteins, pea proteins have similar effects on the rat’s endogenous and bacterial digestive patterns. Compared to the pea proteins, a diet containing a standard meat meal enhanced the pH and the production of ammonia, while a lyophilized beef meat enhanced that of urea. The diet containing the standard meat decreases short-chain fatty acids and modifies the ratio of caecal short-chain fatty acids. Both animal diets decreased the specific activities of pancreatic proteases such as chymotrypsin (EC 3.4.21.1), trypsin (EC 3.4.21.4), and carboxypeptidase A (EC 3.4.17.1) when compared to the diet containing the pea isolate. In conclusion, the whole composition of the diet, more than the origin of the dietary protein, influences the rat’s digestive pattern.

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Section: Discussionsupporting

confidence: 55%

Physiological Effects of a Pea Protein Isolate in Gnotobiotic Rats: Comparison with a Soybean Isolate and Meat

Lhoste

Mouzon²,

Andrieux³

et al. 1998

Ann Nutr Metab

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“…The levels of mRNAs specific for amylase, trypsin and chymotryp sin tended to be higher with the soya bean diets, particularly with the HSF one. Chymo trypsin appears to be often more sensitive to dietary modulation than other enzymes with protein-rich diets [41]. In our study, the change of chymotrypsin activity was not par allel to those of its mRNA.…”

Section: Specific Mrna Levelssupporting

confidence: 47%

Response of the Calf Pancreas to Differently Processed Soya Bean and Pea Diets

Dréan¹,

Huërou-Luron²,

Philouze-Romé³

et al. 1995

Ann Nutr Metab

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The purpose of this study was to determine the effect of replacing skim-milk powder by differently treated soya bean or pea products on growth, pancreas size and pancreatic enzyme activities in calves. Three separate experiments have been performed. In experiments 1 and 2, 28 and 21 male Holstein calves were divided into 4 or 3 groups, respectively, and fed either dairy products or milk substitutes in which protein was mainly provided by soya bean products differing in their protein concentration due to the technological processing applied. In experiment 3, 45 male Holstein calves were divided into 3 groups and were fed either dairy products, or raw or flaked pea flour as a protein source. After an experimental period of 99 ± 4 days in experiments 1 and 2, and of 88 days in experiment 3, animal growth rate was significantly lower with raw pea flour (16%) and with the soya bean diet, which was highly concentrated in carbohydrates and allergenic proteins (13-27%). Pancreas weight decreased significantly (16-18%) with pea diets and tended to be lower (NS) with the water extracted, concentrated and heated flour (soya bean). Amylase-specific activity increased significantly (43%) with pea diets but showed opposite tendencies with the most refined soya bean products. Proteolytic enzyme activities were slightly influenced by dietary protein source, but this was not as obvious as in the literature reviewed. Specific messenger RNAs corresponding to amylase, trypsin and chymotrypsin seemed to increase (NS) with the soya bean diets, particularly with the less elaborated one. However, further investigations are required before any conclusions may be drawn concerning regulation levels of pancreatic adaptation to dietary protein. According to this study and the literature, results concerning pancreatic response to diets were different suggesting that the origin of soya bean, pea seeds and technological treatments applied to them were of great importance. Also, the level of incorporation into milk substitute and the presence of more or less antinutritional factors could influence pancreatic enzyme variations by complex mechanisms.

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“…A significant increase in the activity of proteases in the pancreatic juice has also been observed in the presence of high amounts of rapeseed meal in the diet [180]. Similarly, in the piglet, a marked increase in the activity of trypsin and chymotrypsin has been observed during suckling time [34], and in Elastase I at the expense of Elastase II [66].…”

Section: Motor and Secretory Coordination In The Gastroduodenal Areamentioning

confidence: 96%

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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Effects of diets containing casein and rapeseed on enzyme secretion from the exocrine pancreas in the pig

Cited by 35 publications

References 26 publications

Physiological Effects of a Pea Protein Isolate in Gnotobiotic Rats: Comparison with a Soybean Isolate and Meat

Physiological Effects of a Pea Protein Isolate in Gnotobiotic Rats: Comparison with a Soybean Isolate and Meat

Response of the Calf Pancreas to Differently Processed Soya Bean and Pea Diets

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

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