Specificities of antinuclear antibodies detected in dogs with systemic lupus erythematosus   总被引：4，自引：0，他引：4  

O Costa  C Fournel  E Lotchouang  J C Monier  M Fontaine 《Veterinary immunology and immunopathology》1984,7(3-4):369-382

Five hundred and eighty dogs with at least one clinical sign compatible with a systemic lupus erythematosus (SLE) were entered in a prospective study aimed at evaluating the prevalence of antinuclear antibodies (ANAb). SLE was diagnosed in 38 of these dogs (group A) which fulfilled at least four American Rheumatism Association (ARA) criteria; of these, sixteen had ANAb titers greater than or equal to 4096. The 23 dogs which met three or two ARA criteria (group B) had an ANAb geometric mean titer (GMT) of 259. Dogs (group C) with only 1 criterium had an ANAb GMT of 75. Anti-ds-DNA Ab were present in 6 dogs from group A (16%), and 2 dogs from group B (9%). Anti-histone Ab were present among dogs from group A, B and C with frequencies of 81%, 67% and 26%, respectively. Among dogs from group A, the ANAb titers and the levels of anti-histone Ab correlated positively when individual sera were considered. Antibodies against the soluble nuclear antigen (SNA) were detected in 74%, 39% and 13% of the dogs from groups A, B and C, respectively. Antibodies initially described in human SLE also exist in SLE dogs. Anti-Sm Ab were found in 24% of dogs in group A. With anti-RNP Ab the frequency was still lower (10%). However, two other types of anti-SNA Ab against RNAse and trypsin-resistant antigens, not found in human "reference sera", were often detected. The first type (anti-type 1 Ab) was found in 26% and 9% of group A and group B, The first type (anti-type 1 Ab) was found in 26% and 9% of group A and group B, respectively; the second type (anti-type 2 Ab) is less frequent, and was found in 13% and 17% of group A and B, respectively. It appears that testing for anti-Sm, anti-type 1 and anti-histone Ab should be performed in order to improve the diagnosis of SLE in dogs.  相似文献   

Fine needle aspiration biopsy of malignant tumors in dogs and cats: a report of 102 cases          下载免费PDF全文

Ménard M  Fontaine M  Morin M 《The Canadian veterinary journal. La revue veterinaire canadienne》1986,27(12):504-510

Fine needle aspiration biopsy is a fast and inexpensive technique well tolerated by animals. Its efficacy for the diagnosis of malignancy and determination of cellular origin was investigated for 97 malignant tumors and five benign lesions in 83 dogs and 19 cats. Histological examination of the lesions was performed in each case. Malignancy was detected by cytology in 69% of the malignant tumors. The cellular origin of the lesion was determined in 74% of the cases. Confirmation of malignancy and determination of cellular origin permitted an early diagnosis and prognosis. Since fine needle aspiration biopsy and cytology cannot definitely rule out malignancy, a surgical biopsy and histopathology should be done when malignancy is suspected clinically and not confirmed cytologically. Specimens of good quality, adequate collaboration between the cytologist and clinicians, and sufficient knowledge of pathology and cytology are basic requirements for obtaining good results with fine needle aspiration biopsy and cytology.  相似文献   

An investigation of uncertainty in field habitat mapping and the implications for detecting land cover change     

Andrew Cherrill  Colin McClean 《Landscape Ecology》1995,10(1):5-21

Land cover data for landscape ecological studies are frequently obtained by field survey. In the United Kingdom, temporally separated field surveys have been used to identify the locations and magnitudes of recent changes in land cover. However, such map data contain errors which may seriously hinder the identification of land cover change and the extent and locations of rare landscape features. This paper investigates the extent of the differences between two sets of maps derived from field surveys within the Northumberland National Park in 1991 and 1992. The method used in each survey was the Phase 1 approach of the Nature Conservancy Council of Great Britain. Differences between maps were greatest for the land cover types with the smallest areas. Overall spatial correspondence between maps was found to be only 44.4%. A maximum of 14.4% of the total area surveyed was found to have undergone genuine land cover change. The remaining discrepancies, equivalent to 41.2% of the total survey area, were attributed primarily to differences of land cover interpretation between surveyors (classification error). Differences in boundary locations (positional error) were also noted, but were found to be a relatively minor source of error. The implications for the detection of land cover change and habitat mapping are discussed.  相似文献   

Specialist Treatment by Design     

Professor Colin Wilks. 《Australian veterinary journal》2005,83(3):122-122

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The re-emergence of indigenous forest in an urban environment, Christchurch, New Zealand   总被引：4，自引：0，他引：4  

Glenn H. Stewart  Maria E. Ignatieva  Colin D. Meurk  Richard D. Earl 《Urban Forestry & Urban Greening》2004,2(3):149-158

Christchurch, the second largest city in New Zealand is a planned city on a coastal plain on the east coast of the South Island. The birth of the city and the subsequent century of development was characterised by colonial values and tree and garden planting with familiar European species along with those from Australia, North America, and eventually all other continents. The image of an “English garden city” with classical parks of oaks and willow-lined rivers became the accepted norm and the way in which the city has been promoted to potential tourists. Gardening is one of the top two recreational activities and exotic species greatly outnumber native species in the flora and in gardens. This has had serious consequences for the highly fragmented and degraded indigenous vegetation and its co-adapted wildlife. A few hardy indigenous species continued to regenerate through this period, but since the 1970s, there has been a progressive change of attitude and interest in reclaiming the natural heritage of the city, manifest in widespread private and public planting of indigenous species and active habitat restoration. In this article we examine the indigenous and exotic shrub and tree components of the Christchurch flora as planted street trees, in domestic gardens, and in parks. We also present data on shrub and tree regeneration in parks and domestic gardens in the city. Indications are that the more sensitive, less intrusive management of urban environments, combined with the greater density of indigenous seed sources, has allowed regeneration of a wide range of indigenous species across a broad spectrum of habitats – from neglected gardens to pavement cracks to exotic plantations. This is despite the competition from the prodigious seed banks and density of exotic trees, shrubs, and ground covers and albeit minimal impacts of introduced browsing and seed eating mammals. If the present trends continue through appropriate management and facilitation, these tentative signs of native forest regeneration should eventually proliferate into a sustainable mixed origin urban forest that resurrects and preserves the natural character of the region.  相似文献   

The long-term effects of fire regime on primary production of montane grasslands in South Africa     

Colin S Everson  Terry Everson 《African Journal of Range and Forage Science》2016,33(1):33-41

Natural grasslands deliver essential ecosystem services through plant production, which enhances water supply, nutrient cycling, soil retention and greenhouse gas mitigation. Although the condition of montane grasslands for provision of ecosystem services is maintained by regular annual or biennial burning, controversy exists over the impact of different frequencies and seasons of burning on grassland productivity. The objective of this study was to determine the long-term effects of different burning regimes on primary production and quality of the montane grasslands of the KwaZulu-Natal Drakensberg. There were no significant differences in the mean standing live mass between 30 years of annual winter and biennial spring burning. However, in unburnt areas productivity was 20% lower (118.2?g m?2) than in regularly burnt grassland (144.7–154.5?g m?2). Crude protein did not vary between the annual winter and biennial spring treatments (95–113?kg ha?1), but was significantly lower in unburned areas (45?kg ha^?1). However, an infrequent fire in a protected area caused a temporary spike in crude protein (16%) compared with regular burning (5–10%), which can benefit wildlife. We conclude that montane grasslands can be burnt annually or biennially in the dormant season to promote long-term productivity.  相似文献   

Validation of the Accutrend Plus point‐of‐care triglyceride analyzer in horses,ponies, and donkeys          下载免费PDF全文

Michaela C. Pongratz Dr. med vet  DECEIM  FVH  Hannah K. Junge Dr. med vet  Barbara Riond Dr. med vet  FVH  Colin C. Schwarzwald Dr. med vet  PhD  DACVIM  DECEIM 《Journal of Veterinary Emergency and Critical Care》2016,26(5):682-690

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The use of dexmedetomidine continuous rate infusion for horses undergoing transvenous electrical cardioversion — A case series     

Charlotte Marly-Voquer  Colin C. Schwarzwald  Regula Bettschart-Wolfensberger 《The Canadian veterinary journal. La revue veterinaire canadienne》2016,57(1):70-75

Five horses were presented for treatment of atrial fibrillation by transvenous electrical cardioversion (TVEC). A dexmedetomidine infusion was administered for sedation during positioning of the cardioversion catheters, and continued during general anesthesia. Shocks were applied until return to sinus rhythm. Dexmedetomidine infusion provided excellent conditions for TVEC catheter placement and procedure.  相似文献   

Investigations of selected pathogens among village pigs in Central Papua,Indonesia     

Widi Nugroho  Colin Frank Cargill  I. Made Putra  Roy Neville Kirkwood  Darren John Trott  Siti Isrina Oktavia Salasia  Mitra Slipranata  Michael Philipp Reichel 《Tropical animal health and production》2016,48(1):29-36

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Investigation of the sensitivity of Plasmopara viticola to amisulbrom and ametoctradin in French vineyards using bioassays and molecular tools     

Sverine Fontaine  Florent Remuson  Laëtitia Caddoux  Benoit Barrs 《Pest management science》2019,75(8):2115-2123

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