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排序方式: 共有105条查询结果,搜索用时 15 毫秒
21.
H. Nagahata T. Sako J. A. Reiter S. P. Dibartola C. G. Couto G. J. Kociba 《Veterinary research communications》1991,15(3):181-188
Methods for measuring neutrophil adherence, phagocytic-nitroblue tetrazolium (NBT) reducing activity and chemiluminescence were applied to canine whole blood as means for routine assessment of neutrophil functions. The phagocytic-NBT reduction test appeared to be useful for monitoring the NBT reducing activity of phagocytic cells associated with phagocytic functions. Ethylene diamine tetraacetic acid suppressed both the adherence and the phagocytic-NBT reducing activity of neutrophils. Increased phagocytic-NBT reduction and an enhanced chemiluminescence response were observed in dogs with neutrophilia. These methods provide a rapid and practical screening procedure for measuring selected phagocytic functions in canine whole blood. 相似文献
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23.
Cold agglutinins in cats with haemobartonellosis 总被引:1,自引:0,他引:1
Coombs-positive anemia developed in cats inoculated with Haemobartonella felis. Cold agglutinins were detected in serum during the acute stage of the disease when anemia was present. The cold agglutinating activity was associated with IgM, was demonstrated at 4 C, and was abolished by treatment of sera with 2-mercaptoethanol. At 4 C, the sera from infected cats agglutinated or lysed parasitized autologous erythrocytes or normal erythrocytes pretreated with neuraminidase. These data indicate that cold agglutinins are associated with haemobartonellosis and suggest that immunologic responses to erythrocytic antigens have a role in the anemia. 相似文献
24.
Cheryl L. Swenson DVM Gary J. Kociba DVM Pierre Arnold DVM 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》1988,2(2):100-102
Persistent neutropenia (0-0.6 X 10(9) neutrophils/l) was documented during a 10-month period in a 4-year-old spayed female domestic shorthair cat that was presented for anorexia and depression. Salient abnormalities detected on physical examination were fever (40.3 degrees C), dehydration, and gingivitis. The cat was neutropenic (0.5 X 10(9) neutrophils/l) and enzyme-linked immunosorbent assay (ELISA) test for feline leukemia virus was negative. A bone marrow aspirate showed decreased numbers of mature granulocytic cells. In vitro bone marrow cultures for colony-forming units-granulocyte/macrophage (CFU-GM) were performed comparing bone marrow from the patient with that of a normal cat. The patient had fewer CFU-GM than the control. The number of CFU-GM increased when bone marrow mononuclear cells were cultured in the presence of 10(-5) and 10(-6) mol/l of hydrocortisone, but the cat did not respond to oral prednisolone therapy. The pathogenesis of the neutropenia in this cat remains obscure, but resembles the chronic idiopathic neutropenia syndrome of man. 相似文献
25.
C L Swenson J Silverman P C Stromberg S E Johnson D A Wilkie K A Eaton G J Kociba 《Journal of the American Veterinary Medical Association》1988,193(9):1089-1092
Visceral leishmaniasis was diagnosed in a 5-year-old English Foxhound born and housed in an Ohio research colony. Physical examination revealed pyrexia, hematochezia, panuveitis, splenomegaly, and lymphadenopathy. Hematologic and serum biochemical abnormalities consisted of anemia, thrombocytopenia, hypoalbuminemia, hyperglobulinemia, azotemia, and proteinuria. Postmortem examination revealed widely disseminated (spleen, bone marrow, lymph node, liver, kidney, lungs) Leishmania amastigotes within macrophages. 相似文献
26.
Growth promotants in cattle in Australia 总被引:2,自引:0,他引:2
27.
A spontaneous large granular lymphocyte (LGL) leukemia was serially transplanted in 92 male F344 rats kept under standard laboratory conditions. Serial transplantation into groups of four rats each resulted in a rapid reduction in the latent period of the disease. After 23 serial transplantations, F344 rats in groups that were injected intraperitoneally with 10(7) cells died between 12 and 16 days after transplantation. At necropsy, "transplanted" rats had enlarged mesenteric lymph nodes, thymus, and spleen. Neoplastic cells were detected in the spleen on day 3 and in peripheral blood on day 6. Extreme leukocytosis with leukemia was present on day 9. Severe hemolytic anemia coincided with a sharp increase in osmotic fragility on day 12. Splenic lymphoid depletion was observed histologically and confirmed by differential cell counts of isolated spleen cells. Analysis for surface markers of splenic lymphocytes by monoclonal antibodies and flow cytometry indicated that cells with T helper/inducer phenotypes were disproportionately decreased, while the number of T suppressor cells did not significantly change. The T helper/T suppressor lymphocyte ratio (normal = 2.09 +/- 0.35) was decreased on day 9 (0.76 +/- 0.10) and day 12 (0.25 +/- 0.04). Hemolytic anemia was not related to a decrease in the number of T suppressor cells. The passaged leukemia cell model should provide investigators with an easily maintained neoplasm of short latency with which to study pathogenesis of leukemia-related disorders. 相似文献
28.
29.
Meuten DJ Kociba G Threlfall WR Nogode LA 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》1980,9(1):27-30
Serum alkaline phosphatase was measured in ten mares during various stages of gestation. No significant change in serum alkaline phosphatase activity was detected during pregnancy. These data suggest that interpretation of serum alkaline phosphatase in horses can be made independently of their pregnancy status. 相似文献
30.
ANC Castro MC Díaz GJ Mendoza‐Torres CA Llerena‐Zavala MD Ghezzi CG Barbeito 《Reproduction in domestic animals》2018,53(3):655-666
The breeding of South American camelids is the main economic activity of the high Andean region of South America and it, is potentially, the most profitable resource in of the Puna environmental conditions of the Puna. The duration of the gestation in alpaca is 339.7 ± 12 days. The objective of the present work was to macroscopically and microscopically describe the ontogenic development of the splanchnic cavities of the alpaca and to determine the gestational time in which the post‐cranial ossification centers are observed in the embryos/fetuses of this species, from day 21 to 107 of gestation. The documentation of normal ontogenic development, which is vacant for this period, is of the utmost importance to understand the consequences of the alterations at the different gestational times, as well as for the estimation of the gestational age in the case of abortions. Forty‐seven alpaca specimens of both sexes, at different times of their gestational development, collected during slaughter at local slaughterhouses of the Department of Huancavelica, Peru, were evaluated. Specimens were assigned to seven groups according to their morphological characteristics. The embryogenesis in the alpaca was characterized by a series of changes comparable to those occurring in other mammals with similar gestational periods. Despite these similarities, species differences were found in some organs as stomach, which are observed too in adult individuals. 相似文献