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《Veterinary parasitology》2015,207(1-2):56-63
Although several techniques exist for the detection of equine tapeworms in serum and feces, the differential diagnosis of tapeworm infection is usually based on postmortem findings and the morphological identification of eggs in feces. In this study, a multiplex polymerase chain reaction (PCR)-based method for the simultaneuos detection of Anoplocephala magna, Anoplocephala perfoliata and Anoplocephaloides mamillana has been developed and validated. The method simultaneously amplifies hypervariable SSUrRNA gene regions in the three tapeworm species in a single reaction using three pairs of primers, which exclusively amplify the internal transcribed spacer 2 (ITS-2) in each target gene. The method was tested on three types of sample: (a) 1/10, 1/100, 1/500, 1/1000, 1/2000 and 1/5000 dilutions of 70 ng of genomic DNA of the three tapeworm species, (b) DNA extracted from negative aliquots of sediments of negative control fecal samples spiked with 500, 200, 100, 50 and 10 eggs (only for A. magna and A. perfoliata; no A. mamillana eggs available) and (c) DNA extracted from 80, 50, 40, 30, 10 and 1 egg per 2 μl of PCR reaction mix (only for A. magna and A. perfoliata; no A. mamillana eggs available). No amplification was observed against the DNA of Gasterophilus intestinalis, Parascaris equorum and Strongylus vulgaris. The multiplex PCR method emerged as specific for the three tapeworms and was able to identify as few as 50 eggs per fecal sample and as little as 0.7 ng of control genomic DNA obtained from the three species. The method proposed is able to differentiate infections caused by the two most frequent species A. magna or A. perfoliata when the eggs are present in feces and is also able to detect mixed infections by the three cestode species. 相似文献
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注射过粘液瘤病毒的兔子全部死亡,主要病变为皮下发生粘液性肿胀,和真皮中有星形、梭形或蝌蚪形瘤细胞浸润,在表皮的基细胞和棘细胞层中及瘤细胞中存在有不同阶段的病毒粒子和病毒包涵体,建立了琼脂扩散检测法用于粘液瘤病的诊断。 相似文献
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Plasma Procalcitonin Concentration in Healthy Horses and Horses Affected by Systemic Inflammatory Response Syndrome
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F. Bonelli V. Meucci T.J. Divers E. Jose‐Cunilleras M. Corazza R. Tognetti G. Guidi L. Intorre M. Sgorbini 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2015,29(6):1689-1691
Background
The diseases most frequent associated with SIRS in adult horses are those involving the gastrointestinal tract. An early diagnosis should be the goal in the management of horses with SIRS.Objective
The objective of this study was to evaluate the plasma procalcitonin (PCT) concentration in healthy and SIRS horses to assess differences between the two groups.Animals
Seventy‐eight horses (30 healthy and 48 SIRS).Methods
Prospective in vivo multicentric study. Horses were classified as SIRS if at least 2 of the following criteria were met: abnormal leukocyte count or distribution, hyperthermia or hypothermia, tachycardia, tachypnea. Healthy horses showed no clinical or laboratory signs of SIRS. Plasma PCT concentrations were measured with a commercial ELISA assay for equine species. Results were expressed as mean±standard deviation. T‐test for unpaired data was performed between healthy and SIRS group. SIRS group was divided in 4 subgroups and t‐test was performed between healthy versus each subgroup.Results
PCT concentrations in healthy and SIRS horses were 18.28 ± 20.32 and 197.0 ± 117.0 pg/mL, respectively. T‐test showed statistical differences between healthy versus SIRS group and between healthy versus all subgroups.Conclusions and Clinical Importance
Results showed an increase in PCT concentration in SIRS horses as previously reported in humans and dogs. PCT could be used as a single assay in equine practice for detection of SIRS. 相似文献7.
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G. Menciotti M. Borgarelli M. Aherne S. Wesselowski J. Häggström I. Ljungvall S.M. Lahmers J.A. Abbott 《Journal of Veterinary Cardiology》2017,19(2):113-123
Objective
To assess differences in morphology of the mitral valve (MV) between healthy dogs and dogs affected by myxomatous mitral valve disease (MMVD) using real-time transthoracic three-dimensional echocardiography (RT3DE).Animals
Thirty-four were normal dogs and 79 dogs were affected by MMVD.Methods
Real-time transthoracic three-dimensional echocardiography mitral datasets were digitally recorded and analyzed using dedicated software. The following variables were obtained and compared between healthy dogs and dogs with MMVD at different stages: antero-posterior annulus diameter, anterolateral-posteromedial annulus diameter, commissural diameter, annulus height, annulus circumference, annulus area, anterior leaflet length, anterior leaflet area, posterior leaflet length, posterior leaflet area, non-planar angle, annulus sphericity index, tenting height, tenting area, tenting volume, the ratio of annulus height and commissural diameter.Results
Dogs with MMVD had a more circular MV annulus compared to healthy dogs as demonstrated by an increased annulus sphericity index (p=0.0179). Affected dogs had a less saddle-shaped MV manifest as a decreased annulus height to commissural width ratio (p=0.0004). Tenting height (p<0.0001), area (p<0.0001), and volume (p<0.0001) were less in affected dogs.Conclusions
Real-time transthoracic three-dimensional echocardiography analysis demonstrated that dogs affected by MMVD had a more circular and less saddle-shaped MV annulus, as well as reduced tenting height area and volume, compared to healthy dogs. Multiple variables differed between dogs at different stages of MMVD. Diagnostic and prognostic utility of these variables, and the significance of these changes in the pathogenesis and natural history of MMVD, require further attention. 相似文献10.
区分禽流感病毒亚型诊断基因芯片的构建 总被引:1,自引:0,他引:1
制备了可同时区分AIVH5、H7、H9血凝素亚型及N1、N2神经氨酸酶亚型的基因诊断芯片。试验以重组质粒为模板,进行PCR扩增,然后用异丙醇沉淀法进行纯化,制备探针及内参基因。将探针及内参基因用点样缓冲液稀释到0.3μg/μL后用芯片点样仪将其点制到醛基化基片上,样点中心间距450μm,样点直径220μm。将点好的基片在室温干燥24h以上,后经65℃再水合10s、80℃干燥、65mj紫外线交联照射25min后,再用封闭液封闭,95℃变性处理,成功构建了能区分禽流感血凝素H5,H7,H9亚型及神经氨酸酶N1,N2亚型的检测基因芯片。在PCR扩增中标记待检样品,对制备的检测芯片进行质量检验,结果表明,制备的区分禽流感病毒亚型基因芯片可区分AIV部分亚型。 相似文献
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P.H. Kook N. Kohler S. Hartnack B. Riond C.E. Reusch 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2014,28(3):863-870
Background
Spec cPL is the most sensitive and specific test for diagnosing pancreatitis in dogs. Its results have not been compared to those of the 1,2‐o‐dilauryl‐rac‐glycero‐3‐glutaric acid‐(6′‐methylresorufin) ester (DGGR) lipase assay or those of abdominal ultrasonography.Objectives
To investigate agreement of Spec cPL with DGGR lipase activity and pancreatic ultrasonography in dogs with suspected pancreatitis.Animals
One hundred and forty‐two dogs.Methods
DGGR lipase activity (reference range, 24–108 U/L) and Spec cPL were measured using the same sample. The time interval between ultrasonography and lipase determinations was <24 hours. The agreement of the 2 lipase assays at different cutoffs and the agreement between pancreatic ultrasonography and the 2 tests were assessed using Cohen''s kappa coefficient (κ).Results
DGGR lipase (>108, >216 U/L) and Spec cPL (>200 μg/L) had κ values of 0.79 (95% confidence interval [CI], 0.69–0.9) and 0.70 (CI, 0.58–0.82). DGGR lipase (>108, >216 U/L) and Spec cPL (>400 μg/L) had κ values of 0.55 (CI, 0.43–0.67) and κ of 0.80 (CI, 0.71–0.9). An ultrasonographic diagnosis of pancreatitis and DGGR lipase (>108, >216 U/L) had κ values of 0.29 (CI, 0.14–0.44) and 0.35 (CI, 0.18–0.52). Ultrasonographically diagnosed pancreatitis and Spec cPL (>200, >400 μg/L) had κ values of 0.25 (CI, 0.08–0.41) and 0.27 (CI, 0.09–0.45).Conclusions and Clinical Importance
Although both lipase assays showed high agreement, agreement between ultrasonography and lipase assays results was only fair. Because lipase results are deemed more accurate, ultrasonography results should be interpreted carefully. 相似文献12.
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Maiolino P Restucci B Papparella S De Vico G 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2006,35(3):303-306
BACKGROUND: Telepathology is the process of diagnostic pathology performed on digital images viewed on a display screen rather than by conventional light microscopy with glass slides. At present, electronic mail (e-mail) attachment is the most common communication medium for telepathology, because it is relatively simple and incurs minimal cost. OBJECTIVE: Our objective was to test whether telediagnosis through Internet e-mail could be applied to veterinary diagnostic cytology. METHODS: Using 20 cytology cases, on which a consensus diagnosis was reached by 3 experienced pathologists, a total of 130 images were digitized and sent as e-mail attachments from the Unit of Anatomic Pathology of the Faculty of Veterinary Medicine of Naples to the Unit of Pathology of the Faculty of Veterinary Medicine of Messina, Italy. The images were reviewed at the Unit of Pathology of Messina, where the consulting pathologist formulated his diagnoses by visualizing the images on the monitor of a computer. The telediagnoses were compared with the consensus diagnoses and with the consulting pathologist's interpretation using conventional light microscopy at a later date. RESULTS: The median time to capture images was approximately 30 minutes for each case. The median time to make a telecytodiagnosis was a few seconds for each case. Overall, there was good agreement (85%) between the consensus diagnosis and the consultant's telediagnosis. In 100% of the cases there was agreement between the consulting pathologist's telediagnosis and conventional glass slide diagnosis. CONCLUSION: Telepathology by e-mail provides acceptable efficacy and a faster turnaround time than post and can be applied to veterinary diagnostic cytology. 相似文献
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M. Pavelski D.M. Silva N.C. Leite D.A. Junior R.S de Sousa S.D. Guérios P.T. Dornbusch 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2015,29(6):1578-1583
Background
Infrared thermography is a painless, noninvasive, nonionizing diagnostic imaging exam used in human medicine as an auxiliary tool for breast cancer diagnosis in women.Hypothesis/Objectives
Define thermographic mean temperatures of healthy mammary glands and compare these temperatures with those of mammary glands with tumors in dogs.Animals
Fifty client‐owned female dogs were evaluated, including 20 with histopathologically confirmed mammary tumor and 30 clinically healthy (control).Methods
A randomized study using infrared thermography analyzed each mammary gland of the animals from the control group and mammary glands with tumors from the tumor group, then the thermographic temperatures obtained were compared. Thermographic exam was performed in a temperature‐controlled room with a cooled thermographic camera—Flir E‐40 (Flir Systems®)Results
There was significantly a higher temperature in the caudal abdominal and inguinal mammary glands than the other glands in the healthy group (P < .05). Dogs with mammary tumors had significantly higher thermographic temperature compared with unaffected glands regardless of the tumor size and the location (P < .05).Conclusions and clinical importance
The technique seems to be able to assess for the presence of neoplasia within the mammary tissue in bitches. Further investigation is necessary to determine the impact of this technique when adopted clinically. 相似文献20.