Abstract
The effect of reduced protein in the diet during pregnancy on the subsequent absorption of triolein and of oleic acid which were infused into the intestine of the young was studied. Pregnant rats were fed diets containing either 24% or 4% casein as the sole source of protein. Control and prenatally protein-deprived (PPD) young were studied at birth, before and after suckling, and at 4, 8, and 12 days. Both body weight and the weight and length of intestine were reduced in PPD young. Uptake of triolein from the lumen and retention in enterocytes increased on suckling in newborn control pups, but the amount transferred from or metabolized by the cells did not change. In suckled PPD young, transfer of triolein increased through the enterocyte as well. Unsuckled PPD pups had reduced absorption and retention per enterocyte, per g body weight, per cm gut, and in total. In intestines of control and PPD suckled newborn and postnatal pups, absorption per cell did not differ. Blood lipid levels were increased markedly between 0 and 4 days and tended to decrease to newborn levels by 12 days in both diet groups. Oleic acid absorption in newborn and 12-day PPD pups were reduced in total, per g body weight and per cm of gut. The individual enterocytes were shown to be equally capable of absorption and transfer of triolein and oleic acid. Differences in absorption are related primarily to the numbers of absorptive cells.
Similar content being viewed by others
References
Zeman, F.J., J. Nutr. 93:167 (1967).
Zeman, F.J., and E.C. Stanbrough, Ibid. 99:274 (1969).
Shrader, R.E., and F.J. Zeman, Ibid. 99:401 (1969).
Loh, K-R.W., R.E. Shrader, and F.J. Zeman, Ibid. 101:1663 (1971).
Parsons, P.L., R.E. Shrader, and F.J. Zeman, Ibid. 106:392 (1976).
Smyth, D.H., Biomembranes 4A:241 (1974).
Zeman, F.J., and E.M. Widdowson, Biol. Neonate 24:344 (1974).
Shrader, R.E., M.I. Ferlatte, and F.J. Zeman, Ibid.Biol. Neonate (In press).
Croxton, F.E., “Elementary Statitics with Applications in Medicine and the Biological Sciences,” Dover Publishing Co., New York, NY, 1953, pp. 228–230.
Sylven, C., Biochim. Biophys. Acta 203:365 (1970).
Allen, L.H., and F.J. Zeman, J. Nutr. 101:1311 (1971).
Zeman, F.J., Ibid. 93:163 (1967).
Hall, W.G., Science 190:1313 (1975).
Hahn, P., and O. Koldovsy, “Utilization of Nutrients During Postnatal Development,” Pergamon Press, Oxford, England, 1966, p. 89.
Koldovsky, O., “Development of the Functions of the Small Intestine in Mammals and Man,” S. Karger, Basel, New York, NY, 1969, p. 78.
Johnston, J.M., in “Handbook of Physiology, Sect. 6, Alimentary Canal, Vol. III, Intestinal Absorption,” Edited by C.F. Code and W. Heidel, American Physiological Society, Washington, DC, 1968, pp. 1353–75.
Rokos, J., P. Hahn, O. Koldovsky, and P. Prochazka, Physiol. Bohemoslov, 12:213 (1963).
Henning, S.J., and N. Kretchmer, Enzyme 15:3 (1973).
Robberecht, P., M. Deschodt-Lanckman, J. Camus, J. Bruylands, and J. Christophe, Am. J. Physiol. 221:376 (1971).
Watkins, J.B., D. Ingall, P. Szczepanik, P.D. Klein, and R. Lester, New Engl. J. Med. 288:431 (1973).
Rampone, A.J., Proc. Soc. Exp. Biol. Med. 135:666 (1970).
Hemon, P., D. Ricquier, and G. Mory, Horm. Metab. Res. 7:481 (1975).
Author information
Authors and Affiliations
About this article
Cite this article
Zeman, F.J., Fratzke, M.L. Lipid absorption in the young of protein-deficient rats. Lipids 11, 652–661 (1976). https://doi.org/10.1007/BF02532882
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02532882