title: Saccharomyces boulardii upgrades cellular adaptation after proximal enterectomy in rats.
abstract: BACKGROUND
  Saccharomyces boulardii is a non-pathogenic yeast which exerts trophic effects on human and rat small intestinal mucosa.
  
  
  OBJECTIVE
  To examine the effects of S boulardii on ileal adaptation after proximal enterectomy in rats.
  
  
  METHODS
  Wistar rats, aged eight weeks, underwent 60% proximal resection or transection and received by orogastric intubation either 1 mg/g body wt per day lyophilised S boulardii or the vehicle for seven days. The effects on ileal mucosal adaptation were assessed eight days after surgery.
  
  
  RESULTS
  Compared with transection, resection resulted in mucosal hyperplasia with significant decreases in the specific and total activities of sucrase, lactase, and maltase. Treatment of resected animals with S boulardii had no effect on mucosal hyperplasia but did upgrade disaccharidase activities to the levels of the transected group. Enzyme stimulation by S boulardii was associated with significant increases in diamine oxidase activity and mucosal polyamine concentrations. Likewise, sodium dependent D-glucose uptake by brush border membrane vesicles, measured as a function of time and glucose concentration in the incubation medium, was significantly (p<0.05) increased by 81% and three times respectively in the resected group treated with S boulardii. In agreement with this, expression of the sodium/glucose cotransporter-1 in brush border membranes of resected rats treated with S boulardii was enhanced twofold compared with resected controls.
  
  
  CONCLUSIONS
  Oral administration of S boulardii soon after proximal enterectomy improves functional adaptation of the remnant ileum.
authors.affiliation: Laboratory of Paediatric Gastroenterology and Nutrition, Faculty of Medicine, Catholic University of Louvain, Brussels, Belgium.
authors.forename: J P
authors.initials: JP
authors.lastname: Buts
authors.forename: N
authors.initials: N
authors.lastname: De Keyser
authors.forename: S
authors.initials: S
authors.lastname: Marandi
authors.forename: D
authors.initials: D
authors.lastname: Hermans
authors.forename: E M
authors.initials: EM
authors.lastname: Sokal
authors.forename: Y H
authors.initials: YH
authors.lastname: Chae
authors.forename: L
authors.initials: L
authors.lastname: Lambotte
authors.forename: H
authors.initials: H
authors.lastname: Chanteux
authors.forename: P M
authors.initials: PM
authors.lastname: Tulkens
mesh_terms: D000222:Adaptation, Physiological; D000818:Animals; D004186:Disaccharidases / Q000378:metabolism; D007082:Ileum / Q000201:enzymology / Q000382:microbiology / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D011073:Polyamines / Q000378:metabolism; D011182:Postoperative Care / Q000379:methods*; D051381:Rats; D017208:Rats, Wistar; D012440:Saccharomyces; D000254:Sodium-Potassium-Exchanging ATPase / Q000378:metabolism
chemical_list: D011073:Polyamines; D004186:Disaccharidases; D000254:Sodium-Potassium-Exchanging ATPase