PMID: 3748783Aug 1, 1986Paper

Hexose transport by chicken cecum during development

Pflügers Archiv : European journal of physiology
J M PlanasM Moretó

Abstract

Hexose accumulation during development has been studied in tissue slices from chicken cecum. The age of birds ranged from 0 to 7 weeks after hatch. Ceca were divided into six portions according to their situation either proximal (PC), medial (MC) or distal (DC) to the ileocecal junction. In 0-day-old chicks all segments can accumulate 3-O-methyl-D-glucose (0.5 mmol/l) against a concentration gradient through a phloridzin-sensitive mechanism. Cumulative capacity is lower in DC than in PC and declines with development. Distal segments lose sugar transport ability 1-2 days after hatch whereas the medial region retains some concentrative ability in older birds. In 7-week chickens, PC slices have a similar cumulative ability to that of jejunum (yolk sac region). Kinetic studies showed that in PC the apparent Km for phloridzin-sensitive transport was half that in 1-day- than in 7-week-old birds; apparent Vm increased by 50% in this time range. The ability to transport sugars by the cecum was further confirmed in isolated enterocytes from 5- to 7-week-old chickens using alpha-methyl-D-glucoside (0.1 mmol/l) as substrate. Cell sugar concentration was greater in PC than in jejunal cells and jejunal greater than MC enterocytes. Sugar pre...Continue Reading

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Citations

Jan 1, 1994·Pflügers Archiv : European journal of physiology·R FerrerJ M Planas
May 1, 1987·Pflügers Archiv : European journal of physiology·J M PlanasM Moretó
Jun 1, 1994·Comparative Biochemistry and Physiology. Comparative Physiology·C A Soguero, M P Vinardell
May 1, 1996·British Poultry Science·E Gonzalez, M P Vinardell
Jan 1, 1989·The Journal of Experimental Zoology. Supplement : Published Under Auspices of the American Society of Zoologists and the Division of Comparative Physiology and Biochemistry·V Dantzer
Jan 1, 1989·The Journal of Experimental Zoology. Supplement : Published Under Auspices of the American Society of Zoologists and the Division of Comparative Physiology and Biochemistry·M Moretó, J M Planas
Jan 1, 1989·The Journal of Experimental Zoology. Supplement : Published Under Auspices of the American Society of Zoologists and the Division of Comparative Physiology and Biochemistry·B S Obst, J M Diamond
Dec 29, 1999·The Journal of Nutrition·D E KingO Adeola
Jul 1, 1997·British Poultry Science·J M PlanasM Moretó
Apr 10, 2021·British Poultry Science·Y QuM Proszkowiec-Weglarz

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