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Acta Veterinaria Hungarica
Authors: Noémi Tarpataki, Kinga Pápa, J. Reiczigel, P. Vajdovich and K. Vörös

Medical records of 600 dogs diagnosed with atopic dermatitis were reviewed and evaluated with reference to history, geographical distribution, breed predilection, clinical signs and positive reactions to allergens as determined by intradermal skin testing (IDT) manufactured by Artuvetrin Laboratories**. In 66.6% of dogs, the age of onset of atopic dermatitis was between 4 months and 3 years. Dogs living in the garden suburb of Budapest were more sensitive to house dust mites, fleas and moulds, and dogs from the western part of Hungary were more sensitive to weeds than to other allergens (p < 0.01). Positive reactions were most common to Dermatophagoides farinae followed by human dander. The breed distribution found in the present study was consistent with that reported in the literature, except for the breeds Hungarian Vizsla, Pumi, French bulldog, Doberman Pinscher and Bobtail which were over-represented among atopic dogs compared to the breed distribution of the general dog population of a large city in Hungary. Breeds with verified adverse reaction to food were Cocker spaniels, French bulldogs, Bullmastiffs, Bull terriers, St. Bernards, Tervurens, West Highland White terriers and American Staffordshire terriers (p < 0.05). The clinical signs of atopic dermatitis and their occurrence are in accordance with the data described in the literature.

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Acta Veterinaria Hungarica
Authors: Ágnes Sterczer, Jenő Reiczigel, Roland Psáder, Kinga Pápa, Károly Vörös and Ákos Pap

The efficacy of ultrasound-guided cholagogue-induced gallbladder emptying for differentiating obstructive from non-obstructive hepatobiliary diseases was studied in icteric dogs. In 7 healthy Beagle dogs, Lipofundin 20% infusion (2 ml/kg orally) evoked a vigorous gallbladder contraction of 44.2% (range: 35.3–57.6%) and proved to be a useful, well-tolerable meal for routine use. In 24 icteric dogs, gallbladder contraction was evoked by different cholagogues: the maximum reduction in gallbladder volume (%) for the three non-obstructive icteric dogs was 43.9% (range, 39.0–46.5%). The average gallbladder contraction of the 21 dogs with biliary obstruction was less than 5%. In conclusion, the stimulation of gallbladder contraction with orally applied magnesium sulphate (MgSO4) or Lipofundin can be well demonstrated by ultrasound in dogs. The examination of cholagogue-induced gallbladder emptying is a valuable technique in icteric patients to indicate surgical intervention.

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Acta Veterinaria Hungarica
Authors: Roland Psáder, Ágnes Sterczer, Kinga Pápa, Andrea Harnos, Viktória Szilvási and Ákos Pap

Nutritional support in critically ill patients is a fundamental principle of patient care. Little is known about gallbladder motility during the interdigestive phase and in response to enteral feeding. The objective of this study was to investigate the effect of enteral feeding on gallbladder function in dogs. The cholagogue meal (Lipofundin infusion) was applied in four anatomical positions (jejunum, duodenojejunal junction, descending duodenum, stomach) in five healthy Beagle dogs. Gallbladder volume (GBV) was monitored by ultrasonography. Lipofundin infusion given through the feeding tube caused a maximal gallbladder contraction of 9.2% (range 3.7–13.9%) in the jejunum, 16.5% (9.1–22.1%) at the duodenojejunal junction and 26.3% (22.8–29.5%) in the descending duodenum. When the cholagogue meal was given through the mouth, it caused a mean 33.8% (28.6–46.5%) maximum gallbladder contraction in the same animals. In conclusion, we can establish that the ultrasound-guided gallbladder emptying method proved to be a useful technique for monitoring the cholagogue effect of Lipofundin meal applied in different anatomical positions of the intestine. The deeper the position of application, the smaller and shorter gallbladder contraction was evoked.

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Acta Veterinaria Hungarica
Authors: Roland Psáder, Csaba Jakab, Ákos Máthé, Gyula Balka, Kinga Pápa and Ágnes Sterczer

The aim of the present study was to investigate the expression pattern of claudin-1, -2, -3, -4, -5, -7, -8, -10 and -18 in the intact fundic and pyloric gastric mucosa of dogs. Intense, linear, membranous claudin-18 positivity was detected in the surface gastric cells and in the epithelial cells of the gastric glands both in the fundic and pyloric stomach regions. The mucous neck cells in the apical part of the glands, furthermore the parietal cells and chief cells of the basal part of the gland were all positive for claudin-18, in the same way as the enteroendocrine cells. Cells of the basal part of the pyloric glands showed intense, linear, membranous claudin-2 positivity, but cells of the superficial portion of these glands and the surface gastric cells in this region were claudin-2 negative. Fibroblasts, endothelial cells, lymphocytes of the propria layer, smooth muscle cells and vegetative neurons were all negative for claudin-2. All gastric epithelial cells were negative for claudin-1, -3, -4, -5, -6, -7, -8 and -10. The endothelial cells of the propria layer had intense claudin-5 positivity. We assume that claudin-18 forms a paracellular barrier against gastric acid in the healthy canine stomach, in the same way as in mice.

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Acta Veterinaria Hungarica
Authors: Kinga Pápa, Ákos Máthé, Zsolt Abonyi-Tóth, Ágnes Sterczer, Roland Psáder, Csaba Hetyey, Péter Vajdovich and Károly Vörös

Medical records of 80 dogs diagnosed with acute pancreatitis during a 4-year period were evaluated regarding history, breed predilection, clinical signs and additional examination findings. Cases were selected if compatible clinical symptoms, increased serum activity of amylase or lipase and morphologic evidence of pancreatitis by ultrasonography, laparotomy or necropsy were all present. Like in other studies, neutered dogs had an increased risk of developing acute pancreatitis. Although breed predilection was consistent with earlier reports, some notable differences were also observed. Apart from Dachshunds, Poodles, Cocker Spaniels and Fox Terriers, the sled dogs (Laikas, Alaskan Malamutes) also demonstrated a higher risk for pancreatitis according to our results. Concurrent diseases occurred in 56 dogs (70%), diabetes mellitus (n = 29, 36%) being the most common. Clinical signs of acute pancreatitis were similar to those observed in other studies. The study group represented a dog population with severe acute pancreatitis, having a relatively high mortality rate (40%) compared to data of the literature. Breed, age, gender, neutering and body condition had no significant association with the outcome. Hypothermia (p = 0.0413) and metabolic acidosis (p = 0.0063) correlated significantly with poor prognosis and may serve as valuable markers for severity assessment in canine acute pancreatitis.

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