title: Effects of allopurinol in experimental endotoxin shock in horses.
abstract: The effect of allopurinol pretreatment 12 hours before an intraperitoneal challenge with a sublethal dose of Escherichia coli endotoxin (50 micrograms kg-1) was evaluated in 18 horses. The horses were divided among three equal groups: 1-endotoxin alone; 2-5 mg allopurinol kg-1 bodyweight plus endotoxin; and 3-50 mg allopurinol kg-1 bodyweight plus endotoxin. A variety of evaluation parameters were used. No differences among the groups were noted in rectal temperature, heart rate, respiration rate, haematological values, blood PaO2, blood PaCO2, blood pH or blood bicarbonate. Significant (P less than 0.05) differences between the groups were noted as regards the changes in capillary refill time, base excess, blood glucose, blood lactate, blood beta-glucuronidase and recumbency time. The protection afforded by 5 mg allopurinol kg-1 appeared to be superior to that with 50 mg allopurinol kg-1.
authors.affiliation: Department of Medicine and Surgery, College of Veterinary Medicine, Oklahoma State University, Stillwater 74078.
authors.forename: F
authors.initials: F
authors.lastname: Lochner
authors.forename: S
authors.initials: S
authors.lastname: Sangiah
authors.forename: G
authors.initials: G
authors.lastname: Burrows
authors.forename: R
authors.initials: R
authors.lastname: Shawley
authors.forename: R
authors.initials: R
authors.lastname: McNew
authors.forename: J
authors.initials: J
authors.lastname: Walker
mesh_terms: D000493:Allopurinol / Q000494:pharmacology / Q000627:therapeutic use*; D000818:Animals; D001784:Blood Gas Analysis / Q000662:veterinary; D001786:Blood Glucose / Q000032:analysis; D001831:Body Temperature / Q000187:drug effects; D004195:Disease Models, Animal; D004731:Endotoxins; D004926:Escherichia coli; D005260:Female; D005966:Glucuronidase / Q000097:blood; D006339:Heart Rate / Q000187:drug effects; D006400:Hematocrit / Q000662:veterinary; D006734:Horse Diseases / Q000097:blood / Q000503:physiopathology / Q000517:prevention & control*; D006736:Horses; D006863:Hydrogen-Ion Concentration; D007773:Lactates / Q000097:blood; D007958:Leukocyte Count / Q000187:drug effects / Q000662:veterinary; D008070:Lipopolysaccharides; D008297:Male; D012119:Respiration / Q000187:drug effects; D012772:Shock, Septic / Q000097:blood / Q000503:physiopathology / Q000517:prevention & control / Q000662:veterinary*
chemical_list: D001786:Blood Glucose; D004731:Endotoxins; D007773:Lactates; D008070:Lipopolysaccharides; D000493:Allopurinol; C044101:endotoxin, Escherichia coli; D005966:Glucuronidase