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Acute hemolytic anemia induced by oral administration of indole in ponies.
1991
Paradis M.R. | Breeze R.G. | Laegreid W.W. | Bayly W.M. | Counts D.F.
Eight ponies were allotted to 2 groups of 4. Group-1 ponies (1-4) were given 0.2 g of indole/kg of body weight orally and group-2 ponies (5 to 8) were given 0.1 g of indole/kg. Various physical, hematologic, and physiologic measurements were obtained after administration of indole. Intravascular hemolysis and hemoglobinuria were detected in both groups within 24 hours of dosing. Hemolysis was reflected by decreases in PCV, hemoglobin concentration, and RBC count, and an increase in indirect bilirubin. Erythrocyte fragility appeared to increase in both groups at 8 hours after dosing and peaked at 16 hours after dosing. At 72 hours after dosing, the RBC fragility value was less than predose measurements. Heinz body formation was noticed in group-2 ponies, but not in group 1. Plasma indole concentrations increased in both groups from the nondetectable predose concentrations. Group-1 values were 203% of group-2 values. In group 2, plasma indole was nondetectable by 12 hours, whereas low concentrations could still be measured in the group-1 ponies at 24 hours. Ponies in group 1 died or were euthanatized between 24 and 72 hours after dosing, whereas group-2 ponies were euthanatized between 48 and 120 hours. At necropsy, all body fat, mucous membranes, and elastic tissue were stained yellow. Hemoglobinuric nephrosis was the most prominent microscopic lesion. Results of this study indicated that indole, a metabolite of the amino acid tryptophan, causes acute intravascular hemolysis in ponies.
Показать больше [+] Меньше [-]Evaluation of urine and serum metabolites in Miniature Schnauzers with calcium oxalate urolithiasis.
1991
Lulich J.P. | Osborne C.A. | Nagode L.A. | Polzin D.J. | Parke M.L.
To evaluate underlying causes of calcium oxalate urolithiasis, 24-hour excretion of urine metabolites was measured in 6 Miniature Schnauzers that formed calcium oxalate (CaOx) uroliths during periods when they were fed a standard diet and during periods when food was withheld. Serum concentrations of parathyroid hormone and 1,25-dihydroxyvitamin D also were evaluated. Serum calcium concentrations were normal in all 6 affected Miniature Schnauzers; however, during diet consumption, mean 24-hour urinary excretion of calcium was significantly (P = 0.025) higher than calcium excretion when food was withheld. In 1 dog, urinary calcium excretion was lower during the period of food consumption, compared with the period when food was withheld. Compared with clinically normal Beagles, Miniature Schnauzers that formed CaOx uroliths excreted significantly greater quantities of calcium when food was consumed (P = 0.0004) and when food was withheld (P = 0.001). Miniature Schnauzers that formed CaOx uroliths excreted significantly less oxalate than clinically normal Beagles during fed (P = 0.028) and nonfed (P = 0.004) conditions. Affected Miniature Schnauzers also excreted abnormally high quantities of uric acid. Excretion of citrate was not different between Miniature Schnauzers with CaOx urolithiasis and clinically normal Beagles. In 5 of 6 Miniature Schnauzers with CaOx urolithiasis, concentrations of serum parathyroid hormone were similar to values from age- and gender-matched Miniature Schnauzers without uroliths. The concentration of serum parathyroid hormone in 1 dog was > 4 times the mean concentration of clinically normal Miniature Schnauzers. Mean serum concentrations of 1,25-dihydroxyvitamin D in Miniature Schnauzers with calcium oxalate urolithiasis were similar to concentrations of clinically normal Miniature Schnauzers.
Показать больше [+] Меньше [-]Isolation of Getah virus from racehorse in Korea.
1991
Lyoo Y.S. | Chang C.H. | Rhee J.C. | Kim Y.J. | Lee S.Y.
Characteristics and application of monoclonal antibody to progesterone, 2; Development of progesterone enzyme-linked immunosorbent assay (ELISA).
1991
Kang C.B. | Kim J.S.
Preliminary survey of swine internal parasites at the sawdust fermentation floor system.
1991
Jang D.H. | Noh J.W. | Kang D.W.
Isolation of infectious pancreatic necrosis virus from rainbow trout in Korea.
1991
Lyoo Y.S. | Chang C.H. | Jeon Y.H. | Lee J.O. | Rhee J.C.
Studies on pathogenicity of Escherichia coli isolated from chickens: Correlation between in vitro Congo-red binding properties and in vivo virulence in avian Escherichia coli.
1991
Woo Y.K. | Kim K.S. | Kim B.H.
Culture of glial cells isolated from the spinal cord of demyelinating mice infected with Theiler's virus: An immunocytochemical study.
1991
Shin T.K.
The tick-borne Rickettsia Cowdria ruminantium has a Chlamydia like development cycle
1991
Jongejan, Frans | Zandbergen, T.A. | Van De Wiel, P.A. | De Groot, M. | Uilenberg, Gerrit
Sarna corióptica em rebanho de caprinos no Brasil
1991
Marcelo de Campos Pereira | Anneliese de Souza Traldi
Os autores relatam o primeiro encontro noBrasil de Chorioptes bovis, parasitando um rebanho decaprinos. Acrescentam também comentários sobre a situação taxonômica atual do gênero e sobre algumas das características morfológicas comparativas das dua sespécies de Chorioptes até o presente momento,encontradas associadas com caprinos.
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