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Twenty calves were infected with 1000 metacercariae of Fasciola hepatica, the activities of 10 enzymes in plasma or serum were assayed and concentrations in serum of proteins, urea and bilirubin were determined. These values were compared with control data obtained from 14 uninfected calves. Aspartate aminotransferase, lactate dehydrogenase, sorbitol dehydrogenase, glutamate dehydrogenase, ornithine carbamoyl transferase and gamma-glutamyl transpeptidase activities increased in infected calves. Total serum protein increased, albumin decreased, globulin increased and the albumin/globulin ratio was decreased in infected calves. Plasma alanine aminotransferase, leucine aminopeptidase, alkaline phosphatase and cholinesterase activities and serum concentration of urea and bilirubin were unaffected. It was concluded that glutamate dehydrogenase and gamma-glutamyl transpeptidase were the most sensitive indicators of liver cell damage in fascioliasis.
Vet Rec 1977 Jan 15
PMID:Biochemical indicators of liver injury in calves with experimental fascioliasis. 83 11

During the winter months of 1984 to 1989, outbreaks of laminitis occurred in up to 6 per cent of all the dairy calves aged four to six months on a dairy farm in a village in Israel. The clinical signs were reluctance to move, an arched back, overgrown hooves, supracoronary swelling and occasional walking on the carpus; most of the calves were unthrifty. Owing to the regular recurrence of the disease, the feeding and haematological, radiological and pathological changes in both the affected and normal calves at the farm, and in normal calves at another farm in the same village were studied. In the affected calves there were significant increases in serum protein concentration and in the activities of creatine phosphotinase and gamma-glutamyltransferase. Radiography showed dilated PIII vascular channels and some PIII rotation. Post mortem studies revealed haemorrhages in the laminar section of the hoof. The management of the farms differed in the protein level of the milk replacer and the 'starter' diet used during the first few months. The affected farm used feeds containing 18 per cent digestible protein whereas the unaffected farm used feeds containing 15.3 per cent digestible protein.
Vet Rec 1992 Oct 31
PMID:Winter outbreaks of laminitis in dairy calves: aetiology and laboratory, radiological and pathological findings. 146 27

Groups of eight Welsh Mountain sheep were dosed with diamphenethide at the rate of 70 mg/kg bodyweight at either one, four, six or eight weeks after artificial infection with approximately 300 Fasciola hepatica metacercariae. Comparisons were made with similarly infected but undosed sheep and with sheep which were neither infected nor dosed. The good clearance of flukes up to six weeks of age (above 97 per cent on pooled data) was reflected in the plasma concentrations of the accepted liver damage marker enzymes glutamate dehydrogenase and gamma-glutamyl transpeptidase. Highly significant correlations were demonstrated between the numbers of flukes recovered, the plasma levels of these enzymes and haemoglobin and plasma albumin values. At 70 mg/kg, diamphenethide was shown to be able to control F hepatica populations of up to six weeks of age. The systematic use of diamphenethide at this dose level at intervals of up to six weeks during the period of metacercarial challenge should prevent ovine fascioliasis.
Vet Rec 1985 Feb 16
PMID:The ability of diamphenethide to control immature Fasciola hepatica in sheep at a lower than standard dose level. 285 85

Mouse liver cells in primary culture were evaluated by high-resolution light microscopy (HRLM) and transmission electron microscopy (TEM). Cells after 2 hours of culture in L-15 medium supplemented with 10% fetal bovine serum were spherical in shape, and were either individual or in small clusters of up to ten cells. Following 1 day in culture, hepatocytes were flattened and usually found in groups. Bile canaliculus-like structures were apparent between hepatocytes. Tight junctions and desmosomes were also present along adjacent plasma membranes. Autophagic vacuoles were seen within the cytoplasm. After 2 days in culture, hepatocytes appeared more elongated and flattened than in earlier sampling periods. Both autophagic and clear vacuoles were seen in the cytoplasm. Mitochondria were present in a variety of shapes and sizes. Small bundles of microfilaments were frequently seen in the basal region of cross-sectioned cells. From the fourth until the eighth day in culture, hepatocytes displayed further progression of the morphologic changes seen after 2 days. Nuclear elongation and the projection of cytoplasmic pseudoinclusions into the nucleus were also evident after 4 days. Cytoplasmic and nuclear changes were eventually observed in all hepatocytes by the eighth day of culture. DNA synthesis in the cells during culture was investigated by autoradiography. The percentage of S-phase labeled cells was 0.1% after 1 day of culture. The labeling index increased to 1.02%, 3.14%, and 5.88% after 2, 4, and 6 days of culture, respectively. Synthesis of albumin by the liver cells was also detectable during the first 8 days of primary culture. A gradual drop in albumin synthesis was noted with increased time in culture. The percentage of hepatocytes that histochemically stained for gamma glutamyl transpeptidase (GGT) progressively increased from 0.01% of the cells after 2 hours culture to 3.14% of the cells after 8 days of culture.
Anat Rec 1982 Nov
PMID:Morphologic and functional studies of mouse hepatocytes in primary culture. 613 Jul 24

In an experiment to examine the use of anthelmintics to suppress the faecal egg output of Fasciola hepatica from sheep and reduce the prevalence of infection on a sheep farm with a history of chronic fasciolosis, triclabendazole was administered four times annually for three years. During the first year, treatments in April, June, August and October failed to reduce the prevalence. In the subsequent two years the first annual treatment was brought forward to January and February, and the prevalence was reduced by 74.6 and 69.7 per cent, respectively. The mean plasma gamma-glutamyl transpeptidase concentration of the flock was significantly reduced from 55.9 units/litre before the experiment to 40.9 and 38.3 units/litre. In the second and third years the packed cell volume increased from 0.29 litre/litre to 0.36 litre/litre and the percentage of infected Lymnaea truncatula decreased to zero.
Vet Rec 1994 Jul 23
PMID:Anthelmintic suppression of Fasciola hepatica infections in sheep. 797 94

Reference values for some haematological and plasma biochemical constituents were established in Spanish ibex (Capra pyrenaica hispanica) restrained either physically or chemically with tiletamine-zolazepam. The following variables were studied: haematocrit, haemoglobin concentration, total erythrocyte and leucocyte counts, haematological indices, erythrocyte dimensions, differential count of leucocytes, glucose, urea, uric acid, cholesterol, triglycerides, creatinine, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, creatinine phosphokinase, lactic dehydrogenase, gamma-glutamyl transpeptidase, total plasma protein, albumin, globulins, albumin-globulin ratio, sodium, potassium, calcium, magnesium, total phosphorus, chloride and osmolality. No haematological data have been published before but the values observed were in the general range of other artiodactyls, with the exception of the number and size of the erythrocytes which were respectively larger and smaller than in most other ruminants. Significant differences were found for a number of the variables between the values recorded in physically restrained animals and the values recorded in anaesthetised animals; they included the number of erythrocytes and related parameters, the plasma proteins and some inorganic ions.
Vet Rec 1993 Jun 05
PMID:Haematology of Spanish ibex (Capra pyrenaica hispanica) restrained by physical or chemical means. 833 2

Urinary enzyme activities of alanine aminopeptidase, gamma-glutamyl transpeptidase, alkaline phosphatase, N-acetyl-beta-D-glucosaminidase and beta-glucuronidase were determined in 15 dogs with leishmaniasis and in a group of eight normal dogs. Serum creatinine and blood urea nitrogen concentrations were also measured and renal histology was examined. All the affected dogs had renal lesions. However, no significant differences in blood urea nitrogen and creatinine concentrations were found between the control group and the affected group. The urinary enzyme activities of gamma-glutamyl transpeptidase (P < 0.01), N-acetyl-beta-D-glucosaminidase (P < 0.01) and beta-glucuronidase (P < 0.05) were significantly higher in the affected dogs. Urinary enzymes therefore seem to be a more sensitive and reliable test for assessing early renal damage in canine leishmaniasis than serum creatinine or blood urea nitrogen concentrations.
Vet Rec 1997 May 03
PMID:Enzymuria as an index of renal damage in canine leishmaniasis. 916 May 31

One hundred and nine dogs were diagnosed as having been poisoned by viper (Vipera xanthina palestinae) venom between 1989 and 1996. Most of the cases occurred between April and September (86.2 per cent), with peaks in May (25.7 per cent) and July (20.2 per cent), and very few between November and February (3.6 per cent). Forty-two per cent of the dogs were poisoned in the evening (18.00 to 22.00), with a relative risk of 6.85, 17.4 per cent between 22.00 and 02.00, and 16.5 per cent between 14.00 and 18.00. The median age of the dogs was three years, and almost 80 per cent of them were from rural households. German shepherd dogs and rottweilers were over-represented (relative risk 1.98 and 1.87 respectively), and mongrel dogs and pinschers were under-represented (relative risk 0.41 and 0.53 respectively). Fifty-six per cent of the bites were on the head (excluding the mouth, lips and pinnae), 16.5 per cent on the front limbs, 9.7 per cent on the mouth and lips, 8 per cent on the hindlimbs, 4.4 per cent were submandibular and 5.4 per cent were at other sites. The main clinical signs were local swelling (98.2 per cent) and oedema (94.5 per cent), panting (45.7 per cent), tachypnoea (42.5 per cent), pain (34.9 per cent), tachycardia (29.8 per cent), lameness (25.7 per cent), and lymphadenomegaly (23.9 per cent). The mortality rate was 3.7 per cent. The most common haematological abnormalities were neutrophilia (67.6 per cent), leucocytosis (54.9 per cent), thrombocytopenia (51.9 per cent), increased haematocrit (47.6 per cent), and a left shift of neutrophils (37.8 per cent). Many biochemical abnormalities were observed, of which the most common were high activities of lactate dehydrogenase (84.6 per cent), creatine kinase (69 per cent), gamma-glutamyltransferase (40 per cent) and aspartate aminotransferase and high concentrations of globulin, phosphate and total bilirubin (33.3 per cent in each case).
Vet Rec 1999 May 08
PMID:Retrospective study of the epidemiological, clinical, haematological and biochemical findings in 109 dogs poisoned by Vipera xanthina palestinae. 1083 42

Hypothyroidism was diagnosed in 50 dogs and excluded in 86 dogs suspected of hypothyroidism, on the basis of the results of bovine thyrotropin response tests. Breed, pedigree, sex or neutering status did not significantly influence the likelihood of the dogs being hypothyroid. The hypothyroid dogs were significantly older than the non-hypothyroid dogs referred to the University of Glasgow during the same period. However, when dogs under two years of age were excluded from the statistical analyses there was no significant difference in age between the two groups. The most common clinical characteristics associated with hypothyroidism were metabolic signs (84 per cent of cases), particularly lethargy (76 per cent), obesity or weight gain (44 per cent), and exercise intolerance (24 per cent); and dermatological abnormalities (80 per cent), including alopecia (56 per cent), poor coat quality (30 per cent) and hyperpigmentation (20 per cent). When compared with the laboratory reference limits the most common biochemical and haematological abnormalities were increased concentrations of triglycerides (88 per cent), cholesterol (78 per cent), glucose (49 per cent), and fructosamine (43 per cent), and increased activities of creatine kinase (35 per cent), and decreased concentrations of inorganic phosphate (63 per cent), and a low red blood cell count (40 per cent). When compared with reference limits derived from the euthyroid dogs the most common abnormalities were increased concentrations of gamma-glutamyltransferase (21 per cent), cholesterol (18 per cent), and aspartate aminotransferase (15 per cent) and a decreased red blood cell count (29 per cent), and decreased neutrophils (18 per cent) and decreased activity of creatine kinase (15 per cent). Assessment of cholesterol, creatine kinase, aspartate aminotransferase, gamma-glutamyltransferase, and red blood cell and neutrophil counts may be particularly useful in distinguishing hypothyroid dogs from euthyroid animals with similar clinical signs.
Vet Rec 1999 Oct 23
PMID:Epidemiological, clinical, haematological and biochemical characteristics of canine hypothyroidism. 1059 70

This paper describes the clinical, ultrasonographic, radiographic and postmortem findings in 12 cows with thrombosis of the caudal vena cava. The principal clinical signs were chronic bronchopneumonia and fever in 11 cows; one cow had epistaxis and one cow bled from the mouth; eight cows had anaemia and leucocytosis, and the clotting time for the glutaraldehyde test was markedly decreased in all the cows; in nine of the cows the activity of gamma-glutamyltransferase was high, suggesting chronic hepatic congestion. The most important ultrasonographic finding was congestion of the caudal vena cava attributable to thrombosis of the vein. In all the cows the caudal vena cava was round to oval on cross-section, rather than the normal triangular shape. The hepatic, splenic and portal veins were dilated in five, three and one cow, respectively. The results of radiography and endoscopy supported a diagnosis of bronchopneumonia, but there were radiographic changes in the diaphragmatic lung lobes that supported a diagnosis of vena caval disease in only four cows. Postmortem there was a thrombosis of the caudal vena cava in all the cows, and the thrombi were located in the thoracic, subphrenic and abdominal part of the caudal vena cava at the level of the liver in four, one and seven cows, respectively. In three cows, the thrombus was situated where a hepatic abscess had broken into the caudal vena cava, and in one cow it was at the site of a diaphragmatic abscess. In another cow, there was a fistula between the major bronchus of the right diaphragmatic lung lobe and the caudal vena cava where the thrombus was situated. Three cows had liver abscesses that had not broken into the caudal vena cava. There was severe bronchopneumonia in 11 of the cows, some of which also had multiple pulmonary abscesses.
Vet Rec 2002 Feb 16
PMID:Diagnosis by ultrasonography of congestion of the caudal vena cava secondary to thrombosis in 12 cows. 1187 38


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