Abstract
The diet fed to laboratory animals is one of many variables that can confound research results. The authors investigated the effect of the composition of commercial standard rodent diets on exocrine pancreatic function in rats. They compared two widely used commercial animal diets and found that diet composition greatly influences pancreatic secretion. Their results indicate that commercial diets should conform to the recommended composition requirements to avoid alterations in physiological functions that would eventually affect the results of biomedical research and that investigators should be keenly aware of the composition of the diets being fed to their animals.
This is a preview of subscription content, access via your institution
Access options
Subscribe to this journal
We are sorry, but there is no personal subscription option available for your country.
Buy this article
- Purchase on Springer Link
- Instant access to full article PDF
Prices may be subject to local taxes which are calculated during checkout
Similar content being viewed by others
References
Solomon, T.E. in Physiology of the Gastrointestinal Tract 3rd Edn. (eds. Johnson, L.R., Christensen, J., Jackson, M.J., Jacobson, E.D. & Walsh, J.H.) 1173–1207 (Raven Press, New York, 1994).
Green, G.M. & Nasset, E.S. Role of dietary protein in rat pancreatic enzyme secretory response to a meal. J. Nutr. 113(11), 2245–2252 (1983).
Swanson, K.C., Benson, J.A., Matthews, J.C. & Harmon, D.L. Pancreatic exocrine secretion and plasma concentration of some gastrointestinal hormones in response to abomasal infusion of starch hydrolysate and/or casein. Anim. Sci. 52(6), 1781–1787 (2004).
Green, G.M., Taguchi, S., Friestman, J., Chey, W.Y. & Liddle, R.A. Plasma secretin, CCK and pancreatic secretion in response to dietary fat in the rat. Am. J. Physiol. 256(6 Pt 1), G1016–G1021 (1989).
Li, P., Lee, K.Y., Ren, X.S., Chang, T.M. & Chey, W.Y. Effect of pancreatic proteases on plasma cholecystokinin, secretin, and pancreatic exocrine secretion in response to sodium oleate. Gastroenterology 98(6), 1642–1648 (1990).
Spannagel, A.W. et al. Adaptation to fat markedly increases pancreatic secretory response to intraduodenal fat in rats. Am. J. Physiol. 270(1 Pt 1), G128–G135 (1996).
Stubbs, R.S. & Stabile, B.E. Inhibition of the stimulated canine exocrine pancreas by amino acids and fat. Arch. Surg. 124(4), 473–478 (1989).
Hara, H., Narakino, H. & Kiriyama, S. Enhancement of pancreatic secretion by dietary protein in rats with chronic diversion of bile-pancreatic juice form the proximal small intestine. Pancreas 9(2), 275–279 (1994).
Yago, M.D., Martinez-Victoria, E., Huertas, J.R. & Manos, M. Effects of the amount and type of dietary fat on exocrine pancreatic secretion in dogs after different periods of adaptation. Arch. Physiol. Biochem. 105(1), 78–85 (1997).
Liddle, R.A., Green, G.M., Conrad, C.K. & Williams, J.A. Proteins but not amino acids, carbohydrates or fats stimulate cholecystokinin secretion in the rat. Am. J. Physiol. 251(2 Pt 1), G243–G248 (1986).
Manas, M., Yago, M.D., Quiles, J.L., Huertas, J.R. & Martinez-Victoria, E. Absence of rapid adaptation of the exocrine pancreas of conscious dogs to diets enriched in fat or carbohydrates. Arch. Physiol. Biochem. 104(7), 819–825 (1996).
Institute for Laboratory Animal Research, National Research Council. Guide for the Care and Use of Laboratory Animals (National Academy Press, Washington, DC, 1996).
Association of Official Analytical Chemists International. Official Methods of Analysis of the AOAC International 17th Edn. (ed. Horwitz, W.) (AOAC International, Gaithersburg, MD, 2000).
Food and Agriculture Organisation of the United Nations. Food Energy—Methods of Analysis and Conversion Factors. (FAO, Rome, 2003), pp. 57–60.
Elkin, R.G. & Wasynczuk, A.M. Amino acid analysis of foodstuff hydrolysates by precolumn derivatization with phenylisothiocyanate and reversed phase high-performance liquid chromatography. Cereal Chem. 64(4), 226–229 (1987).
Sabbatini, M.E. et al. Atrial natriuretic factor stimulates exocrine pancreatic secretion in the rat through NPR-C receptors. Am. J. Physiol. Gastrointest. Liver Physiol. 285(5), G929–G937 (2003).
Maouyo, D., Sarfati, P., Guan, D., Morisset, J. & Andelson, J.W. Circadian rhythm of exocrine pancreatic secretion in rats: major and minor cycles. Am. J. Physiol. 264(4 Pt 1), G792–G800 (1993).
Lowry, O.H., Rosebrough, N.J., Farr, A.L. & Randall, R.J. Protein measurement with the folin phenol reagent. J. Biol. Chem. 193(1), 265–275 (1951).
National Research Council. Nutrient Requirement of Laboratory Animals 4th Edn. (National Academy Press, Washington, DC, 1995).
Li, Y. & Owyang, C. Vagal afferent pathway mediates physiological action of cholecystokinin on pancreatic enzyme secretion. J. Clin. Invest. 92(1), 418–424 (1993).
Li, J.P., Lee, K.L., Chang, T.-M. & Chey, W.Y. MEK inhibits secretin release and pancreatic secretion: roles of secretin-releasing peptide and somatostatin. Am. J. Physiol. 280, G890–G896 (2001).
Li, J.P., Chang, T.M. & Chey, W.Y. Roles of 5-HT receptors in the release and action of secretin on pancreatic secretion in rats. Am. J. Physiol Gastrointest. Liver Physiol. 280(4), G595–G602 (2001).
Warwick, Z.S. & Schiffman, S.S. Role of dietary fat in calorie intake and weight gain. Neurosci. Biobehav. Rev. 16(4), 585–596 (1992).
Chilliard, Y. Dietary fat and adipose tissue metabolism in ruminants, pigs, and rodents: a review. J. Dairy Sci. 76(12), 3897–3931 (1993).
International Council for Laboratory Animal Science. Guidelines on the Selection and Formulation of Diets for Animals in Biochemical Research (Institute of Biology, London, 1987).
Saitoh, Y. et al. Effects of eight amino acids on the exocrine and endocrine pancreatic function. Tohoku J. Exp. Med. 129(3), 257–272 (1979).
Shiratori, K., Watanabe, S. & Tekeuchi, T. Effect of fatty acid on secretin release and cholinergic dependence of pancreatic secretion in rats. Pancreas 4(4), 452–458 (1989).
Shiratori, K., Watanabe, S., Takeuchi, T., Shimizu, K. & Moriyoshi, Y. Role of secretin and cholecystokinin in oleic acid–stimulated pancreatic secretion in rats. Gastroenterol. Jpn. 25(1), 104–111 (1990).
Li, P., Lee, K.Y., Chang, T.M. & Chey, W.Y. Hormonal mechanism of sodium oleate-stimulated pancreatic secretion in rats. Am. J. Physiol. 259(6 Pt 1), G960–G965 (1990).
Guan, D. et al. Role of secretin in basal and fat-stimulated pancreatic secretion in conscious rats. Endocrinology 128(2), 979–982 (1991).
Hjelte, L., Ahren, B., Andren-Sandberg, A., Bottcher, G. & Strandvik, B. Pancreatic function in the essential fatty acid deficient rat. Metabolism 39(8), 871–875 (1990).
Acknowledgements
Financial support for this work came from grants from Universidad de Buenos Aires (UBACYT B079 and UBACYT B903). The authors thank Dr. Anabel Pallaro for her kind collaboration and contribution to the discussion of this work.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Competing interests
The authors declare no competing financial interests.
Rights and permissions
About this article
Cite this article
Sabbatini, M., Pellegrino, N., Rios, M. et al. Variation in exocrine pancreatic secretion in rats due to different commercial diets. Lab Anim 35, 41–49 (2006). https://doi.org/10.1038/laban0606-41
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1038/laban0606-41
This article is cited by
-
Differences in long-term effects of standard rodent diets on blood glucose and body weight of offspring
Diabetology International (2022)