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BRUNO J. MASSAT Dr Med Vet CLARE R. GREGORY DVM Dipiomate ACVS GERALD V. LING dvm GEORGE H. CARDINET dvm PhD ERNEST L. LEWIS md 《Veterinary surgery : VS》1993,22(4):260-268
Cystourethropexy was performed in 10 bitches with refractory urinary incontinence due to urethral sphincter mechanism incompetence. All animals had an abnormally shaped vesico-urethral junction. The bladder neck was located in the pelvic canal in nine dogs (pelvic bladder). Surgery alone restored urinary continence in two cases and markedly improved incontinence in two cases. Surgery combined with medical therapy (phenylpropanolamine, 1.5 mg/kg orally once or twice a day, using a sustained-action preparation) restored urinary continence in four cases and markedly improved continence in one case. Surgery, with medical therapy, was completely ineffective in one case. No major complications were encountered in any dogs. In four cases, histopathologic evaluation of the dorsal bladder wall and neck revealed the presence of a single, perinuclear, clear vacuole in the cytoplasm of smooth muscle fibers. Electron microscopic examination showed that the vacuoles represented a dilatation of normal membrane organelles. Such abnormalities have the potential to alter the smooth muscle motility. This study indicates that cystourethropexy alone restored urinary continence only temporarily in the majority of the patients. The significance and frequency of the histopathologic findings requires further investigation. 相似文献
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Abstract. Groups of rainbow trout, Salmo gairdneri Richardson, and Atlantic salmon, S. salar L., were infected with Renibacterium salmoninarum , injected with killed bacteria or starved. Selected red and white cell parameters were measured over a 35–day period. As a result of successful infection a typical granulomatous disease developed during which haematocrit, red cell count, haemoglobin, red cell diameter and the ratio of mature to immature erythrocytes all decreased. Red cell depletion was shown to be caused by their retention in the spleen and to be the cause of the observed splenomegaly. Increases in monocytes, thrombocytes and neutrophils were recorded in both infected groups. 相似文献
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D. W. BRUNO 《Aquaculture Research》1986,17(3):185-190
Abstract. The first outbreak of bacterial kidney disease in farmed salmonids in Scotland was recorded in 1976, The number of individual outbreaks has now risen to at least 37. Disease outbreaks are seasonal, reaching a peak during May. In many cases infection has spread following the movement of juvenile fish. Mortalities are variable; in extreme cases 20% per annum occurs. Both gross signs and mortalities are reduced in fish reared in sea water. 相似文献
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Common ragweed (Ambrosia artemisiifolia L.) is one of the annual plants that were described recently as invasive weeds in Europe. This species is described as an invasive plant that produces seeds that are highly variable. Its production of variably sized seeds is regarded as promoting its spread in different environments. Experiments were carried out to determine the influence of the seed weight and temperature on germination and the influence of the seed weight and burial depth on seedling emergence. The seeds were divided into a number of classes of weight and the seed weight effect on germination was evaluated by Petri dish assays. In another experiment, the seeds were buried at different depths in a clay soil/sand mix to estimate the burial effect on germination and seedling emergence. The germination level of A. artemisiifolia was high overall, between 76.8% and 94.2%. The seed germination was modified by temperature but it was not influenced by the seed weight. The amounts of germination and seedling emergence were greater for the seeds on the soil surface and decreased with an increasing burial depth, from 2 to 8 cm. No germination or emergence was observed for the seeds that were buried at 10 and 12 cm. The lightest seeds were more sensitive to burial. A greater level of seedling emergence for those seeds that were placed near the soil surface could explain the success of this species in open habitats, where the probability of deeper burial is low. After high seed production, the management of A. artemisiifolia in fields could be partly achieved through soil tillage, burying seeds below 10 cm, and not carrying out deep soil tillage the following year. 相似文献
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Single-Stage Revision Using an Uncemented, Porous-Coated, Anatomic Endoprosthesis in Two Dogs 总被引：1，自引：1，他引：0