Effect of ghrelin on duodenal migrating myoelectric complex in rats with chronic renal failure / 南方医科大学学报
Journal of Southern Medical University
; (12): 624-627, 2011.
Article
em Zh
| WPRIM
| ID: wpr-332588
Biblioteca responsável:
WPRO
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the effect of ghrelin on duodenal migrating myoelectric complex (MMC) in rats with chronic renal failure (CRF).</p><p><b>METHODS</b>Thirty healthy male SD rats were randomly assigned into sham-operated group (n=6) and CRF group (n=24), and the latter group was divided into 4 subgroups according to ghrelin doses administered with or without pretreatment with the receptor antagonist D-Lys(3)-GHRP-6. After a 18-h fasting, the rats with or without pretreatment with D-Lys(3)-GHRP-6 were given subcutaneous injections of ghrelin at different doses to observe the changes in duodenal MMC recorded using a multi lead physiological recording system.</p><p><b>RESULTS</b>Ghrelin significantly increased the MMC cycle duration and dose-dependently enhanced the frequency, amplitude and percentage of phase III MMC cycle. This effect was inhibited by the pretreatment with ghrelin receptor antagonist D-Lys(3)-GHRP-6.</p><p><b>CONCLUSION</b>Ghrelin can promote gastrointestinal motilities of rats with CRF, and the receptor of ghrelin can regulate the activity of MMC.</p>
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1
Índice:
WPRIM
Assunto principal:
Farmacologia
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Complexo Mioelétrico Migratório
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Ratos Sprague-Dawley
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Duodeno
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Grelina
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Motilidade Gastrointestinal
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Falência Renal Crônica
Limite:
Animals
Idioma:
Zh
Revista:
Journal of Southern Medical University
Ano de publicação:
2011
Tipo de documento:
Article