title: [Effect of low-dose polyethylene glycol 4000 on fecal consistency and dilution water in healthy subjects].
abstract: OBJECTIVE
  The aim of the study was to assess in normal subjects the changes in stool consistency and dilution water during the ingestion of small doses of polyethylene glycol (PEG) 5.9 g/d. Dilution water is the water located outside solid structures (bacteria and food residue).
  
  
  METHODS
  Each stool passed by 16 non-constipated male volunteers was collected during 3 weeks. PEG was ingested from days 1 to 7, and stools collected during the ingestion of PEG were compared with those collected at least 24 h after the last fecal excretion of PEG (control fecal data). Consistency, fresh and dry weight, dilution water, nitrogen, electrolytes and PEG were quantified in each stool.
  
  
  RESULTS
  Stools were softer during the ingestion of PEG (P < 0.01) and dilution water increased significantly (49.4 +/- 1.7 vs 37.6 +/- 2.6 mL/100 g feces, mean +/- SD, P < 0.02). PEG induced variable effects among individuals according to the consistency and dilution water measured during the control period.
  
  
  CONCLUSIONS
  Low doses of PEG (5.9 g/d) soften stools particularly when feces are harder. This effect is due to changes in dilution water (water outside fecal solid structures).
authors.affiliation: Hôpital Saint-Lazare, Paris.
authors.forename: J J
authors.initials: JJ
authors.lastname: Bernier
authors.forename: Y
authors.initials: Y
authors.lastname: Donazzolo
mesh_terms: D000328:Adult; D001834:Body Water / Q000737:chemistry / Q000187:drug effects* / Q000502:physiology; D004573:Electrolytes / Q000032:analysis; D005243:Feces / Q000737:chemistry*; D005772:Gastrointestinal Transit / Q000502:physiology; D006801:Humans; D008297:Male; D011092:Polyethylene Glycols / Q000008:administration & dosage / Q000494:pharmacology*
chemical_list: D004573:Electrolytes; D011092:Polyethylene Glycols
vernacular_title: Effet du polyéthylène glycol 4000 à petites doses sur la consistance et l'eau de dilution des selles chez le sujet sain.