Journal of veterinary medicine. B, Infectious diseases and veterinary public health最新文献

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Molecular typing of Mycobacterium bovis isolates from south-east Brazil by spoligotyping and RFLP. 巴西东南部牛分枝杆菌分离株的spoligotyping和RFLP分型。
Journal of veterinary medicine. B, Infectious diseases and veterinary public health Pub Date : 2005-04-01 DOI: 10.1111/j.1439-0450.2005.00835.x
M S Zanini, E C Moreira, C E Salas, M T P Lopes, A S Barouni, E Roxo, M A Telles, M J Zumarraga
{"title":"Molecular typing of Mycobacterium bovis isolates from south-east Brazil by spoligotyping and RFLP.","authors":"M S Zanini,&nbsp;E C Moreira,&nbsp;C E Salas,&nbsp;M T P Lopes,&nbsp;A S Barouni,&nbsp;E Roxo,&nbsp;M A Telles,&nbsp;M J Zumarraga","doi":"10.1111/j.1439-0450.2005.00835.x","DOIUrl":"https://doi.org/10.1111/j.1439-0450.2005.00835.x","url":null,"abstract":"<p><p>The identification of 163 strains of Mycobacterium bovis by polymerase chain reaction (PCR) and microbiological tests was carried out on 252 tuberculous-like lesions (TLLs) collected from slaughtered cattle in south-east Brazil. This study compared the usefulness of three genotyping techniques, IS6110-restriction fragment length polymorphism (RFLP), polymorphic guanine-cytosine-rich sequence (PGRS)-RFLP and direct repeat (DR)-spoligotyping, as applied to M. bovis isolates. Based on IS6110-RFLP genotyping we selected a group of 23 isolates containing more than one IS6110 copy, along with 16 samples containing one IS6110 copy from different geographical areas, evenly distributed among dairy (eight) and beef cattle (eight). These selected isolates were analysed by PGRS-RFLP and DR-spoligotyping genotyping. Dairy cattle (17%) display a higher frequency of multiple IS6110 copies than beef cattle (10%). A comparison between the genotype data obtained fails to show a correlation between the main clusters found by the three techniques. However, the clustering of each genotyping procedure revealed that the majority of strains are closely related. The RFLP-PGRS patterns showed a sizable group (20.5%) containing a 5.5 kb fragment and the predominant spoligotype is similar to that from the BCG vaccine strain. Unexpectedly, four strains (2.4%) showed drug resistance to 0.2 microg/ml isoniazid and 20 microg/ml ethionamide, but none of them was resistant to rifampicin or other antibiotics tested.</p>","PeriodicalId":17659,"journal":{"name":"Journal of veterinary medicine. B, Infectious diseases and veterinary public health","volume":"52 3","pages":"129-33"},"PeriodicalIF":0.0,"publicationDate":"2005-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1439-0450.2005.00835.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25094950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 21
Immunohistochemical identification of Campylobacter fetus in natural cases of bovine and ovine abortions. 牛和羊自然流产中弯曲杆菌胎儿的免疫组织化学鉴定。
Journal of veterinary medicine. B, Infectious diseases and veterinary public health Pub Date : 2005-04-01 DOI: 10.1111/j.1439-0450.2005.00834.x
C M Campero, M L Anderson, R L Walker, P C Blanchard, L Barbano, P Chiu, A Martínez, G Combessies, J C Bardon, J Cordeviola
{"title":"Immunohistochemical identification of Campylobacter fetus in natural cases of bovine and ovine abortions.","authors":"C M Campero,&nbsp;M L Anderson,&nbsp;R L Walker,&nbsp;P C Blanchard,&nbsp;L Barbano,&nbsp;P Chiu,&nbsp;A Martínez,&nbsp;G Combessies,&nbsp;J C Bardon,&nbsp;J Cordeviola","doi":"10.1111/j.1439-0450.2005.00834.x","DOIUrl":"https://doi.org/10.1111/j.1439-0450.2005.00834.x","url":null,"abstract":"<p><p>An immunohistochemistry (IHC) procedure for the detection of Campylobacter fetus antigens using an avidin-biotin complex technique was performed on formalin fixed bovine and ovine fetal tissues from 26 natural cases of Campylobacter spp. abortion (four ovine and 22 bovine). The species of Campylobacter isolated included C. fetus ssp. venerealis from 13 bovine fetuses, C. fetus ssp. fetus from two ovine and one bovine fetus, Campylobacter jejuni from seven bovine fetuses, Campylobacter lari from two ovine fetuses and an unspeciated Campylobacter species in one bovine fetus. Histologic lesions identified in the aborted fetuses included placentitis, serositis, pneumonia, gastroenteritis, hepatitis and encephalitis. Campylobacter fetus antigens were identified by IHC in 13 of 13 bovine fetuses from which C. fetus ssp. venerealis was isolated and in two of two ovine fetuses from which C. fetus ssp. fetus was isolated. The IHC stains were negative in tissues from seven bovine fetuses from which C. jejuni was isolated, one bovine fetus infected with C. fetus ssp. fetus, one bovine fetus infected with the unspeciated Campylobacter and two ovine fetuses infected with C. lari. In positive cases, the IHC stain most frequently identified bacteria in the lung and gastrointestinal tract. The C. fetus IHC procedure performed on formalin fixed tissues is a practical tool for the diagnosis of natural cases of ovine and bovine abortion caused by C. fetus.</p>","PeriodicalId":17659,"journal":{"name":"Journal of veterinary medicine. B, Infectious diseases and veterinary public health","volume":"52 3","pages":"138-41"},"PeriodicalIF":0.0,"publicationDate":"2005-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1439-0450.2005.00834.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25094952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 54
Anti-microbial susceptibility of Streptococcus spp. isolated from bovine mastitis in Argentina. 阿根廷牛乳腺炎链球菌的抗微生物敏感性分析。
Journal of veterinary medicine. B, Infectious diseases and veterinary public health Pub Date : 2005-04-01 DOI: 10.1111/j.1439-0450.2005.00830.x
G Denamiel, P Llorente, M Carabella, M Rebuelto, E Gentilini
{"title":"Anti-microbial susceptibility of Streptococcus spp. isolated from bovine mastitis in Argentina.","authors":"G Denamiel,&nbsp;P Llorente,&nbsp;M Carabella,&nbsp;M Rebuelto,&nbsp;E Gentilini","doi":"10.1111/j.1439-0450.2005.00830.x","DOIUrl":"https://doi.org/10.1111/j.1439-0450.2005.00830.x","url":null,"abstract":"<p><p>The in vitro susceptibility to penicillin G, erythromycin and clindamycin was determined by the disc diffusion test and by E-test for a total of 47 streptococcal strains (three Streptococcus uberis, 36 Streptococcus agalactiae, eight Streptococcus dysgalactiae spp. dysgalactiae) isolated from bovine intramammary infections in Argentina. Moreover, resistance phenotypes of erythromycin-resistant streptococcal isolates was characterized. MIC90 of penicillin G, erythromycin and clindamycin for S. agalactiae were 0.75, 8.0 and 12.0 microg/ml respectively. Resistance to erythromycin and clindamycin was detected in 13 (27.6%) and 12 (25.5%) isolates respectively. No isolate was resistant to penicillin G. Resistance against macrolides, lincosamides and streptogramin B (MLS(B)) represented by the constitutive MLS(B) phenotype was present in 11 (23.4%) erythromycin-resistant isolates and two isolates (4.3%) expressed the M phenotype. The inducible MLS(B) phenotype was not identified. Results suggest that beta-lactams are the first-line antibiotics when treating streptococcal udder infections; however, the continuous monitoring of the antibiotic resistance is essential, as the emergence of resistant strains has become a growing concern on the therapy of bovine mastitis.</p>","PeriodicalId":17659,"journal":{"name":"Journal of veterinary medicine. B, Infectious diseases and veterinary public health","volume":"52 3","pages":"125-8"},"PeriodicalIF":0.0,"publicationDate":"2005-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1111/j.1439-0450.2005.00830.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25094949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 29
Towards a Risk Analysis of Antibiotic Resistance. Proceedings of the 1st International Symposium. Berlin, Germany, 9-11 November 2003. 抗生素耐药性的风险分析。第一届国际学术研讨会论文集。2003年11月9-11日,德国柏林。
{"title":"Towards a Risk Analysis of Antibiotic Resistance. Proceedings of the 1st International Symposium. Berlin, Germany, 9-11 November 2003.","authors":"","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":17659,"journal":{"name":"Journal of veterinary medicine. B, Infectious diseases and veterinary public health","volume":" ","pages":"357-421"},"PeriodicalIF":0.0,"publicationDate":"2004-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"25068226","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Experimental field trial with an immunostimulating complex (ISCOM) vaccine against contagious bovine pleuropneumonia. 免疫刺激复合物(ISCOM)疫苗对抗传染性牛胸膜肺炎的实验现场试验。
Journal of veterinary medicine. B, Infectious diseases and veterinary public health Pub Date : 2003-08-01 DOI: 10.1046/j.1439-0450.2003.00659.x
O J B Hübschle, G Tjipura-Zaire, I Abusugra, G di Francesca, F Mettler, A Pini, B Morein
{"title":"Experimental field trial with an immunostimulating complex (ISCOM) vaccine against contagious bovine pleuropneumonia.","authors":"O J B Hübschle,&nbsp;G Tjipura-Zaire,&nbsp;I Abusugra,&nbsp;G di Francesca,&nbsp;F Mettler,&nbsp;A Pini,&nbsp;B Morein","doi":"10.1046/j.1439-0450.2003.00659.x","DOIUrl":"https://doi.org/10.1046/j.1439-0450.2003.00659.x","url":null,"abstract":"<p><p>The experimental field trial with an immunostimulating complex (ISCOM) vaccine has been an occasion to explore the role of a Th1 response in the pathogenesis caused by Mycoplasma mycoides subsp. mycoides small colony (MmmSC) and in immune protection. The ISCOM complex is known to promote Th1 response. Antibodies to MmmSC were detected by indirect enzyme-linked immunosorbent assay (ELISA) in the vaccinated cattle, although the levels were lower than in a previous study. No antibodies were detected by complement fixation test (CF). After the challenge infection, vaccinated animals developed CF antibody response. They showed significantly reduced mortality compared with controls. However, gross pathological and histopathological score for vaccinated animals was as high as for the non-vaccinated, characterized by a high inflammatory reaction with histopathology dominated by interlobular pneumonia with vasculitis.</p>","PeriodicalId":17659,"journal":{"name":"Journal of veterinary medicine. B, Infectious diseases and veterinary public health","volume":"50 6","pages":"298-303"},"PeriodicalIF":0.0,"publicationDate":"2003-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0450.2003.00659.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24086079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 27
Isolation of Campylobacter jejuni and Campylobacter coli from the gall bladder samples of sheep and identification by polymerase chain reaction. 绵羊胆囊标本中空肠弯曲菌和大肠弯曲菌的分离及聚合酶链反应鉴定。
Journal of veterinary medicine. B, Infectious diseases and veterinary public health Pub Date : 2003-08-01 DOI: 10.1046/j.1439-0450.2003.00678.x
H B Ertaş, G Ozbey, A Kiliç, A Muz
{"title":"Isolation of Campylobacter jejuni and Campylobacter coli from the gall bladder samples of sheep and identification by polymerase chain reaction.","authors":"H B Ertaş,&nbsp;G Ozbey,&nbsp;A Kiliç,&nbsp;A Muz","doi":"10.1046/j.1439-0450.2003.00678.x","DOIUrl":"https://doi.org/10.1046/j.1439-0450.2003.00678.x","url":null,"abstract":"<p><p>In this study, 100 gall bladder samples of sheep slaughtered at an abattoir in Elaziğ province were examined for Campylobacter jejuni and Campylobacter coli by culture and polymerase chain reaction (PCR). Preston Campylobacter Agar supplemented with 7% horse blood and Preston Selective Supplement (Oxoid, Hampshire, UK) were used for isolation of the agents. Campylobacter spp. were isolated in 66 samples, and they were identified as 34% C. jejuni and 32% C. coli. A multiplex PCR based upon the use of ceuE gene-specific primers was applied on DNA samples extracted from C. jejuni and C. coli isolates. All C. jejuni and C. coli strains that were positive by culture were also detected to be positive by PCR. This study shows that PCR can be used an alternative, rapid and sensitive test for the identification of C. jejuni and C. coli which threaten human and animal health.</p>","PeriodicalId":17659,"journal":{"name":"Journal of veterinary medicine. B, Infectious diseases and veterinary public health","volume":"50 6","pages":"294-7"},"PeriodicalIF":0.0,"publicationDate":"2003-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0450.2003.00678.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24086153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 28
Effect of endobronchial challenge with Actinobacillus pleuropneumoniae serotype 10 of pigs vaccinated with bacterins consisting of A. pleuropneumoniae serotype 10 grown under NAD-rich and NAD-restricted conditions. 富nadd和限制nadd条件下培养的10型胸膜肺炎放线杆菌疫苗对猪支气管内攻毒的影响
Journal of veterinary medicine. B, Infectious diseases and veterinary public health Pub Date : 2003-08-01 DOI: 10.1046/j.1439-0450.2003.00676.x
I van Overbeke, K Chiers, E Donne, R Ducatelle, F Haesebrouck
{"title":"Effect of endobronchial challenge with Actinobacillus pleuropneumoniae serotype 10 of pigs vaccinated with bacterins consisting of A. pleuropneumoniae serotype 10 grown under NAD-rich and NAD-restricted conditions.","authors":"I van Overbeke,&nbsp;K Chiers,&nbsp;E Donne,&nbsp;R Ducatelle,&nbsp;F Haesebrouck","doi":"10.1046/j.1439-0450.2003.00676.x","DOIUrl":"https://doi.org/10.1046/j.1439-0450.2003.00676.x","url":null,"abstract":"<p><p>The efficacy of two bacterins containing an Actinobacillus pleuropneumoniae serotype 10 strain was evaluated. The bacterial cells constituting bacterin 1 and 2 were grown under nicotinamide adenine dinucleotide (NAD)-rich (low-adherence capacity to alveolar epithelial cell cultures) and NAD-restricted (high-adherence capacity to alveolar epithelial cell cultures) conditions, respectively. Ten pigs were vaccinated twice with the bacterin 1 and nine pigs with the bacterin 2. Ten control animals were injected twice with a saline solution. Three weeks after the second vaccination, all pigs were endobronchially inoculated with 106.5 colony-forming units (CFU) of an A. pleuropneumoniae serotype 10 strain. In the bacterin 1 and 2 group, three and two pigs died after inoculation, respectively. Only two pigs of the control group survived challenge. Surviving pigs were killed at 7 days after challenge. The percentage of pigs with severe lung lesions (> 10% of the lung affected) was 100% in the control group, 70% in the bacterin 1 group and 22% in the bacterin 2 group. Actinobacillus pleuropneumoniae was isolated from the lungs of all animals. The mean bacterial titres of the caudal lung lobes were 7.0 x 10(6) CFU/g in the control group, 6.3 x 10(5) CFU/g in the bacterin 1 group and 1.3 x 10(6) CFU/g in the bacterin 2 group. It was concluded that both bacterins induced partial protection against severe challenge. Furthermore, there are indications that the bacterin 2, containing A. pleuropneumoniae bacteria grown under conditions resulting in high in vitro adhesin, induced better protection than the bacterin 1.</p>","PeriodicalId":17659,"journal":{"name":"Journal of veterinary medicine. B, Infectious diseases and veterinary public health","volume":"50 6","pages":"289-93"},"PeriodicalIF":0.0,"publicationDate":"2003-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0450.2003.00676.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24086152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Reproductive losses due to Neospora caninum in a beef herd in Argentina. 阿根廷一肉牛群中犬新孢子虫造成的繁殖损失。
Journal of veterinary medicine. B, Infectious diseases and veterinary public health Pub Date : 2003-08-01 DOI: 10.1046/j.1439-0450.2003.00673.x
D P Moore, C M Campero, A C Odeón, R Chayer, M A Bianco
{"title":"Reproductive losses due to Neospora caninum in a beef herd in Argentina.","authors":"D P Moore,&nbsp;C M Campero,&nbsp;A C Odeón,&nbsp;R Chayer,&nbsp;M A Bianco","doi":"10.1046/j.1439-0450.2003.00673.x","DOIUrl":"https://doi.org/10.1046/j.1439-0450.2003.00673.x","url":null,"abstract":"<p><p>Reproductive losses in a beef herd of 857 heifers with a pregnancy rate of 86.3% are described. After pregnancy testing, 69 abortions were seen during a 3 month period. Before calving season, three heifers had delivered pre-mature non-viable calves. Serum samples from 58 of 69 aborted heifers were available for serological tests. In order to compare the seroprevalence in non-aborted vs. aborted heifers, 214 pregnant animals were bleed during the abortion storm. In addition, blood samples were collected from two heifers with pre-mature calves and from 16 heifers with their calves prior to colostrum intake. All available serum samples were tested for Neospora caninum antibodies using an indirect fluorescence antibody test (IFAT). Fifty-nine of 290 (20.3%) evaluated heifers were seropositive. Heifers that aborted and heifers with pre-mature calves were more likely to be seropositive than pregnant heifers and heifers with normal calves [odds ratio (OR), 12.01; 95% CI, 6.18-23.30]. Vaginal mucus from four aborted heifers, and samples from two aborted foetuses and three pre-mature calves were available. Laboratory tests for Tritrichomonas foetus, bacterial and viral isolation, and histological examination were performed. Culture from vaginal mucus and foetal samples were negative. Histological lesions consistent with neosporosis and positive immunohistochemistry (IHC) to N. caninum were found in one aborted foetus and in one pre-mature calf. It is the first description of reproductive losses because of N. caninum in beef herds in Argentina.</p>","PeriodicalId":17659,"journal":{"name":"Journal of veterinary medicine. B, Infectious diseases and veterinary public health","volume":"50 6","pages":"304-8"},"PeriodicalIF":0.0,"publicationDate":"2003-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0450.2003.00673.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24086080","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 36
A study about tick vectors of bovine theileriosis in an endemic region of Iran. 伊朗牛钩虫病流行区蜱媒研究。
Journal of veterinary medicine. B, Infectious diseases and veterinary public health Pub Date : 2003-08-01 DOI: 10.1046/j.1439-0450.2003.00677.x
G R Razmi, E Ebrahimzadeh, M R Aslani
{"title":"A study about tick vectors of bovine theileriosis in an endemic region of Iran.","authors":"G R Razmi,&nbsp;E Ebrahimzadeh,&nbsp;M R Aslani","doi":"10.1046/j.1439-0450.2003.00677.x","DOIUrl":"https://doi.org/10.1046/j.1439-0450.2003.00677.x","url":null,"abstract":"<p><p>The aim of this study was to determine the population of ticks in infected cattle and to identify the tick vectors of bovine theileriosis in an endemic area of Iran from 1998 to 1999. A total of 120 suspected cattle suffering from theileriosis were clinically examined and investigated for the presence of Theileria annulata in blood smears and the presence of any tick species on the body of cattle. In this study, 680 ticks were collected from 107 cattle infected with T. annulata. The prevalence of ticks infesting cattle was 92.35% Hyalomma anatolicum excavatum, 5.14% H. marginatum marginatum, 1.17% H. asiaticum asiaticum and 1.32% Rhipicephalus sanguineus. The examination of 510 tick salivary glands revealed that 51% of H. a. excavatum and 1.3% of H. a. asiaticum were infected with sporozoites of T. annulata.</p>","PeriodicalId":17659,"journal":{"name":"Journal of veterinary medicine. B, Infectious diseases and veterinary public health","volume":"50 6","pages":"309-10"},"PeriodicalIF":0.0,"publicationDate":"2003-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0450.2003.00677.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24086081","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 18
Novel employment of lactate dehydrogenase release from porcine aortic endothelial cells (PAEC) as a quantitative marker of cytotoxic activity in thermophilic Campylobacter spp. from human faecal isolates, poultry and environmental sources. 利用猪主动脉内皮细胞(PAEC)乳酸脱氢酶释放量作为人类粪便、家禽和环境源嗜热弯曲杆菌(Campylobacter)细胞毒活性的定量标记。
Journal of veterinary medicine. B, Infectious diseases and veterinary public health Pub Date : 2003-08-01 DOI: 10.1046/j.1439-0450.2003.00683.x
B C Millar, M McCarron, P G Murphy, J E Moore
{"title":"Novel employment of lactate dehydrogenase release from porcine aortic endothelial cells (PAEC) as a quantitative marker of cytotoxic activity in thermophilic Campylobacter spp. from human faecal isolates, poultry and environmental sources.","authors":"B C Millar,&nbsp;M McCarron,&nbsp;P G Murphy,&nbsp;J E Moore","doi":"10.1046/j.1439-0450.2003.00683.x","DOIUrl":"https://doi.org/10.1046/j.1439-0450.2003.00683.x","url":null,"abstract":"<p><p>The aim of this study was to employ a novel cytotoxicity assay based on primary porcine aortic endothelial cells in combination with a lactate dehydrogenase release assay to quantitatively determine differences in cytotoxin production between Campylobacter jejuni, C. coli, C. lari and urease-positive thermophilic campylobacters (UPTC), isolated from human faeces, animals and environmental sources. Campylobacter isolates totalling 34 and comprising of C. jejuni (n = 24) C. coli (n = 5) and UPTC (n = 4) and C. lari (n = 1) were analysed. The cytotoxic response ranged from 32.15 to 64.47% and 33.08 to 59.41%, for C. jejuni from chicken and human isolates, respectively and there was no statistically significant difference (P > 0.05) in cytotoxic response between C. jejuni isolated from humans and chicken isolates (50.78% versus 50.55% cytotoxicity, respectively). However, there was a difference in response between C. jejuni and C. coli isolated from chickens (50.78% versus 33.22% cytotoxicity, respectively). The greatest cytotoxic response was obtained with the UPTC group of organisms examined (n = 4 isolates) (mean cytotoxic response = 57.11% cytotoxicity. Employment of this cytotoxin assay may help identify virulent strains in poultry that could potentially proceed to cause clinical problems for humans and thus intervention measures targeted at the reduction or elimination of such specific strains, may be sought.</p>","PeriodicalId":17659,"journal":{"name":"Journal of veterinary medicine. B, Infectious diseases and veterinary public health","volume":"50 6","pages":"275-9"},"PeriodicalIF":0.0,"publicationDate":"2003-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1046/j.1439-0450.2003.00683.x","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"24086150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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