Canine Leptospirosis: A Retrospective Study of 17 Cases     

Virginia T. Rentko VMD    Nancy Clark DVM    Linda A. Ross DVM  MS  Scott H. Schelling DVM 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》1992,6(4):235-244

  相似文献   

Concentrations of prolactin, luteinizing hormone and follicle stimulating hormone in pituitary and serum of horses: effect of sex, season and reproductive state   总被引：2，自引：0，他引：2  

D L Thompson  L Johnson  R L St George  F Garza 《Journal of animal science》1986,63(3):854-860

Pituitary and serum from 86 male or female horses of various reproductive states were collected in the normal breeding season (summer) and in the nonbreeding season (winter) at a commercial slaughterhouse. Concentrations of prolactin (PRL), luteinizing hormone (LH) and follicle stimulating hormone (FSH) were measured by radioimmunoassay. Concentrations of pregnant mare serum gonadotropin and reproductive steroids in serum and gross appearance of the reproductive tract and gonads were used to catagorize reproductive state. Concentrations of PRL were higher (P less than .01) in summer than in winter in pituitary and serum of mares, stallions and geldings. In summer, mares had higher (P less than .01) concentrations of PRL in serum than stallions. In mares, concentrations of LH in pituitary were higher (P less than .05) in summer than in winter. Concentrations of LH in serum were higher (P less than .01) in summer than in winter in mares and geldings, higher (P less than .01) in mares than in stallions in summer, higher (P less than .01) in geldings than in stallions in summer and higher (P less than .01) in mares with low serum progesterone (P) concentrations than in mares with high P concentrations in summer. Concentrations of FSH in pituitary and serum did not differ between summer and winter for any type of horse.(ABSTRACT TRUNCATED AT 250 WORDS)  相似文献   

Sterile nodular panniculitis in five horses     

L F Karcher  D W Scott  M Paradis  W I Anderson 《Journal of the American Veterinary Medical Association》1990,196(11):1823-1826

Sterile nodular panniculitis was diagnosed in 5 horses. Physical abnormalities were predominantly limited to cutaneous changes, consisting of multiple subcutaneous nodules that had a tendency to wax and wane over time and were commonly distributed over the trunk, neck, and proximal portion of the limbs. In each horse, the diagnosis was confirmed by excisional biopsy of a nodule and by exclusion of infective causes of panniculitis on the basis of negative culture results and special stain application to skin specimens. Treatment with immunosuppressive doses of glucocorticoids was curative in 1 horse, was required on a daily or alternate-day schedule in 2 others to keep the skin clear, and had no effect on the disease in the remaining 2 horses.  相似文献   

Pitfalls in immunofluorescence testing in canine dermatology   总被引：1，自引：0，他引：1  

D W Scott  D K Walton  T O Manning  R M Lewis  C A Smith 《The Cornell veterinarian》1983,73(2):131-136

Indirect immunofluorescence testing for pemphigus-like antibodies was performed on 100 dogs: 50 dogs with various nonpemphigus dermatologic diseases, 25 dogs with various nondermatologic diseases, and 25 normal dogs. One dog (generalized demodicosis) was positive for pemphigus-like antibodies at a titer of 1:10. It was concluded that canine pemphigus-like antibodies are a potential source of misinterpretation and misdiagnosis in indirect immunofluorescence testing. Direct immunofluorescence testing for IgG, IgA, IgM, and C3 was performed on the footpads of 11 normal dogs. Granular deposition of IgM at the basement membrane zone was demonstrated in 5 of the 11 dogs. It was concluded that direct immunofluorescence testing of canine footpads using only polyvalent immunoglobulin antisera or anti-IgM antisera may lead to misinterpretation and misdiagnosis in up to 45% of all dogs tested.  相似文献   

Studies on the pathogenesis of bovine ephemeral fever in experimental cattle III. Virological and biochemical data     

M.F. Uren  T.D. St. George  G.M. Murphy 《Veterinary microbiology》1992,30(4):297-307

In an attempt to define the nature of the response of cattle to ephemeral fever infection, a number of indicators of inflammation were monitored during clinical disease. The total Ca, Zn, Fe, Cu, glucose and phosphate in plasma, together with blood ammonia, were assayed relative to changes in the rectal temperature. Ca_T levels fluctuated markedly and hypocalcaemia occurred in 4 of 8 cattle. Plasma Zn and Fe values fell while plasma Cu levels rose markedly in all cattle. Mean levels of serum NH₃ of 20–30 μmol 1⁻¹ rose to a peak value of 56 μmoll⁻¹. Plasma glucose levels rose to a peak of 4.6 ± 0.5 mMl⁻¹ and the plasma phosphate levels fell from 2.4 ± 0.1 mMl⁻¹ to 1.17 ± 0.2 mMl⁻¹ during fever. Values of pCO₂ fell from a mean of 46.9 ± 3.6 mmHg to 36.4 ± 3.1 mmHg and coincided with a rise in pH. Virus was isolated 73 h (± 23) after inoculation and persisted until 130 h (± 21). The common role of these parameters in generalised inflammation and ephemeral fever is discussed.  相似文献   

Plasma Taurine Concentrations in Normal Dogs and in Dogs With Heart Disease     

George A. Kramer  Mark D. Kittleson  Philip R. Fox  Julia Lewis  Paul D. Pion 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》1995,9(4):253-258

Plasma taurine concentrations were determined in 76 dogs with dilated cardiomyopathy (DCM), 28 dogs with acquired valvular disease (AVD), and 47 normal (control) dogs. The data were collected at 2 referral centers. The Animal Medical Center, New York, NY (AMC), and the University of California, Davis (UCD), and the studies were conducted independently. Different anticoagulants (sodium citrate at AMC and lithium heparin at UCD) were used to collect the plasma samples. Paired analysis of samples showed a significant difference in plasma taurine concentrations, depending on the anticoagulant used. Consequently, results from each clinic were analyzed separately. Plasma taurine concentrations were significantly higher in dogs with AVD (median, 133 nmol/mL; range, 25 to 229 nmol/mL) than in control dogs (median, 63 nmol/mL; range 44 to 224 nmol/mL) and dogs with DCM (median, 72 nmol/mL; range, 1 to 247 nmol/mL) at AMC (P= .001). The number of dogs with AVD at UCD was too small to draw meaningful conclusions. At UCD, the median plasma taurine concentration was 98 nmol/mL (range, 28–169 nmol/mL) in dogs with AVD, 75 nmol/mL (range, 0.1–184 nmol/mL) in dogs with DCM, and 88 nmol/mL (range 52–180 nmol/mL) in control dogs. There were no significant differences in plasma taurine concentrations between dogs with DCM and the control dogs at either hospital. Congestive heart failure and administration of cardiac medication had no significant effect on plasma taurine concentrations. Plasma taurine concentration was low (<25 nmol/mL) in 17% (13/76) of the dogs with DCM. Seven of the 13 dogs with low plasma taurine concentrations were Cocker Spaniels or Golden Retrievers. It was concluded that most dogs with DCM do not have low plasma taurine concentrations. However, certain breeds or individual dogs may have low plasma taurine concentrations in association with DCM. Whether this association is causal or not is unknown. The significance of the high plasma taurine concentrations in dogs with AVD is also unknown.  相似文献   

Aspiration pneumonia following near-drowning in a mare: A case report     

Scott M. Austin DVM  Jonathan H. Foreman DVM  MS  Thomas E. Goetz DVM 《Journal of Equine Veterinary Science》1988,8(4)

A 10-year-old Arabian mare was referred after being trapped in a river following a tornado. The results of the clinical examination, hematology, blood gas analysis, and radiography, which confirmed near-drowning, are described. The development of aspiration pneumonia was identified by fever, hyperfibrinogenemia, hematology, positive transtracheal aspiration, and radiography. The therapy of near-drowning and aspiration pneumonia is discussed.  相似文献   

Equine neurologic disease     

Dr Neil M. Williams DVM  PhD  Dipl. ACVP  Dr George Allen PhD  Dr David Powell FRCVS   《Journal of Equine Veterinary Science》2003,23(10):431-433

  相似文献   

Fate and effect of autogenous osteochondral fragments implanted in the middle carpal joint of horses.     

M J Huber  W B Schmotzer  T W Riebold  B J Watrous  S P Synder  E A Scott  P C von Matthiessen 《American journal of veterinary research》1992,53(9):1579-1588

Four autogenous osteochondral fragments removed from the lateral trochlear ridge of the talus were arthroscopically placed as loose bodies in a randomly selected middle carpal joint in each of 10 horses. The contralateral middle carpal joint, subjected to a sham procedure, served as control. Postoperative treatment was consistent with that for clinical arthroscopic patients. Lameness evaluation, radiographic examination, carpal circumference measurement, and synovial fluid analysis were performed before and at scheduled intervals after surgery. After a 2-month confinement, horses were subjected to an increasing level of exercise. Horses were euthanatized at intervals through 6 months. Gross and microscopic evaluations were performed on remaining fragments, articular cartilage, and synovial membrane of each middle carpal joint. Increased joint circumference, effusion, lameness, and degenerative joint disease distinguished implanted from control joints over the 6-month period. Implanted joints were characterized by grooved, excoriated cartilage surfaces, and synovium that was thick, erythematous, and irregular. At 4 weeks, implants were found to have adhered to synovium at their subchondral bone surface. The bone within fragments was undergoing necrosis, while cartilage was preserved. At 8 weeks, fragments were radiographically inapparent, grossly evident as pale plaques on the synovial surface, and composed of dense fibrous connective tissue. Synovial membrane specimens from implanted joints had inflammatory change characterized by mononuclear cell infiltration 2 months after implantation. Physical damage was apparent within articular cartilage of implanted joints at 2 months, and was significant (P less than 0.05) at 6 months after surgery. Chondrocyte degenerative change was significant (P less than 0.05) at 6 months after surgery. Focal reduction in safranin-O uptake was observed in cartilage layers adjacent to physical defects. Osteochondral loose bodies of the size implanted in the middle carpal joint of horses in this study were resorbed by the synovium within 2 months. Synovitis and significant articular cartilage damage were associated with the implanted fragments. Regardless of origin, free osteochondral fragments within the middle carpal joint should be removed, and methods to prevent residual postoperative debris should be implemented to reduce potential for articular pathologic change.  相似文献   

Integrating airborne lidar and satellite imagery to model habitat connectivity dynamics for spatial conservation prioritization     

Xuan Guo  Nicholas C. Coops  Sarah E. Gergel  Christopher W. Bater  Scott E. Nielsen  J. John Stadt  Mark Drever 《Landscape Ecology》2018,33(3):491-511

  相似文献