Article (Scientific journals)
Spermine-Induced Alteration of Small Intestine in Suckling Rat: Involvement of Apoptosis or Zn2+ Enzymes?
Peulen, Olivier; Denis, Ghislaine; Defresne, Marie-Paule et al.
2001In Digestive Diseases and Sciences, 46 (11), p. 2490-8
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Keywords :
Animals, Suckling; Apoptosis; Caspase 3; Caspases/metabolism; Enzyme Precursors/metabolism; Female; In Situ Nick-End Labeling; Intestine, Small/drug effects; Lactase; Male; Rats; Rats, Wistar
Abstract :
[en] Polyamines are of great importance in several physiological processes, such as cell proliferation and differentiation. The ingestion of spermine by suckling rats induces precocious maturation of their small intestine. Shortly after ingestion, spermine produces cell elimination at the villous top. The origin of this exfoliation was investigated to determine whether it was due to apoptosis. Wistar rats were orally treated with spermine. Apoptosis was analyzed in their small intestine by Tdt-mediated dUTP-fluorescein nick-end labeling reaction, caspase-3-like analysis, and DNA laddering. Polyamine content was measured by HPLC. The intestinal transitory alteration appeared as soon as 2 hr after spermine administration. Apoptosis events increased strongly at the same moment in the small intestine. They were evidenced by Tdt-mediated dUTP-fluorescein nick-end labeling analysis, DNA laddering, and caspase-3-like activity. Changes observed are consistent with apoptosis, but caspase inhibitor did not reduce intestinal alteration, as did Zn2+ chelator.
Disciplines :
Biochemistry, biophysics & molecular biology
Author, co-author :
Peulen, Olivier  ;  Université de Liège - ULiège > Services généraux (Faculté de médecine) > Service administratif de la Faculté (Médecine)
Denis, Ghislaine
Defresne, Marie-Paule ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Histologie - Cytologie
Dandrifosse, Guy ;  Université de Liège - ULiège > Services généraux (Faculté de médecine) > Relations académiques et scientifiques (Médecine)
Language :
English
Title :
Spermine-Induced Alteration of Small Intestine in Suckling Rat: Involvement of Apoptosis or Zn2+ Enzymes?
Publication date :
November 2001
Journal title :
Digestive Diseases and Sciences
ISSN :
0163-2116
eISSN :
1573-2568
Publisher :
Kluwer Academic/Plenum Publishers, United States - New York
Volume :
46
Issue :
11
Pages :
2490-8
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 30 June 2010

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