Article (Scientific journals)
Intestinal effects of long-lasting spermine ingestion by suckling rats
Deloyer, Patricia; Peulen, Olivier; Dandrifosse, Guy
2005In Experimental Physiology, 90 (6), p. 901-908
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Keywords :
polyamines; intestine
Abstract :
[en] Spermine ingestion induces the precocious maturation of the small intestine in suckling rats. Previous observations suggest that spermine-induced intestinal maturation is a two-step phenomenon. The first step is the elimination of immature enterocytes (4-10 h post spermine ingestion) and the second step is the replacement of previous immature cells by adult-type enterocytes (2-3 days post initial spermine administration). The spermine-induced maturation is reversible when spermine administration is stopped. This work was undertaken in order to check whether the extension of polyamine administration (for 3-7 days) after the appearance of spermine-induced maturation can retain the mature state of the small intestine. Our results indicate that extension of spermine administration does not prevent some parameters (sucrase and maltase specific activities) reverting to a typical 'immature' value while others remain at a typical 'mature' level (mucosal weight and lactase specific activity). Our results show that there are at least two different mechanisms in required for the control of spermine-induced maturation of the small intestine.
Disciplines :
Anatomy (cytology, histology, embryology...) & physiology
Author, co-author :
Deloyer, Patricia
Peulen, Olivier  ;  Université de Liège - ULiège > Services généraux (Faculté de médecine) > Service administratif de la Faculté (Médecine)
Dandrifosse, Guy ;  Université de Liège - ULiège > Services généraux (Faculté de médecine) > Relations académiques et scientifiques (Médecine)
Language :
English
Title :
Intestinal effects of long-lasting spermine ingestion by suckling rats
Publication date :
01 November 2005
Journal title :
Experimental Physiology
ISSN :
0958-0670
eISSN :
1469-445X
Publisher :
Blackwell Publishing, Oxford, United Kingdom
Volume :
90
Issue :
6
Pages :
901-908
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 11 September 2009

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