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Academic literature on the topic 'Arcanobacterium spp'

Author: Grafiati
Published: 10 December 2022
Last updated: 29 January 2023

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Journal articles on the topic "Arcanobacterium spp"

1

Suvajdzic, Ljiljana, Jelena Asanin, Bjanka Lako, Aleksandar Potkonjak, Vladimir Sakac, Ivana Cabarkapa, and Natasa Stojakovic. "Isolation of Arcanobacterium haemolyticum from calves with pneumonia and proposal of a diagnostic protocol." Veterinarski glasnik 66, no. 3-4 (2012): 165–74. http://dx.doi.org/10.2298/vetgl1204165s.

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The aims of this study are the isolation and identification of possible bacteriological agents in respiratory infections of calves and the optimization of a diagnostic protocol to identify Arcanobacterium haemolyticum. Lesions of lungs from calves with pneumonia were examined. Cultural, morphological and conventional biochemical testing were done. The investigation was complemented by the double CAMP test. Five strains of Arcanobacterium haemolyticum in pure culture were found. The presence of Arcanobacterium haemolyticum in the lungs of calves with pneumonia was established and, consequently, more attention should be paid to this species in everyday laboratory work. The cultural similarity of Arcanobacterium haemolyticum to common bacteria like beta-hemolytic Streptococcus spp. and Arcanobacterium pyogenes is probably responsible for rare reports on the isolation of Arcanobacterium haemolyticum in veterinary microbiology. Our results indicate that Arcanobacterium haemolyticum could be or is the etiological agent of pneumonia. Therefore, we suggest the diagnostic protocol available for routine work in most microbiological laboratories.
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Фирсов, Григорий Михайлович, Алексей Анатольевич Ряднов, Светлана Александровна Акимова, Зоя Черменовна Морозова, Тамара Александровна Ряднова, and Юлия Григорьевна Фирсова. "Внутриутробные инфекции у крупного рогатого скота Волгоградской области." Аграрная Россия, no. 1 (January 20, 2023): 40–43. http://dx.doi.org/10.30906/1999-5636-2023-1-40-43.

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Исследование проводили на территории обслуживания ветеринарных участков в Волгоградской области на потомстве от 1228 дойных коров голштино-фризской породы в 2018 – 2022 гг. От мертворожденных телят были выделены вирусы-возбудители вирусной диареи крупного рогатого скота и бычьего герпеса 1 и 4 типов. Бактериальных факторов выделено гораздо больше: Arcanobacterium (Trueperella) pyogenes, Bacillus licheniformis, Bacillus cereus, Listeria monocytogenes и Escherichia coli. Кроме того, из организмов телят выделяли множество подвидов микроорганизмов, таких как Aeromonas, Proteus, Staphylococcus, Neisseria, Acinetobacter, Mannheimia varigena. Среди паразитарных факторов наибольшее значение имело заражение Neospora caninum, присутствие которого чаще всего обнаруживали среди изученных патогенов на основании наличия кист в головном мозге. К грибковым факторам относили выделение грибов вида Aspergillus fumigatus, реже Absidia spp., Mucor spp., Rhizopus spp. и Candida spp. Наиболее частым диагнозом были паразитарные (42,86 %), затем бактериальные (33,33 %) и реже вирусные (23,81 %) заболевания. Полученные результаты показали, что внутриутробная инфекция выявляется примерно у каждого 5-го мертворожденного теленка. Однако это не означает, что инфекция вызывала гибель всех телят, но ее наличие могло значительно снизить жизнеспособность телят и тем самым способствовать их гибели.
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3

Ribeiro, Márcio G., Alexandra F. Belotta, Marta C. Fernandes, Rafael Guena, Geraldo de Nardi Júnior, Gustavo H. B. Lara, Rogério Giuffrida, and Thiago de O. Zamprogna. "Citologia aspirativa no diagnóstico da linfadenite em ovinos." Pesquisa Veterinária Brasileira 31, no. 10 (October 2011): 839–43. http://dx.doi.org/10.1590/s0100-736x2011001000002.

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O presente estudo investigou o uso da cito-(73,0%), Arcanobacterium pyogenes (6,0%), Streptococlogia aspirativa com agulha fina no diagnóstico da lin-cus spp. β hemolítico (5,0%) e Escherichia coli (4,0%) fadenite em ovinos e a ocorrência de microrganismos foram os microrganismos mais frequentes nos animais nos linfonodos com lesões, com ênfase no isolamento de com linfadenite. Streptococcus spp. (21,0%) e Staphylo-Corynebacterium pseudotuberculosis. Foram utilizados coccus spp. (7,0%) foram as bactérias isoladas com 100 linfonodos de ovinos com aumento de volume su-maior frequência nos linfonodos sem lesões colhidos em gestivos de linfadenite e 100 linfonodos de ovinos sem abatedouro. A punção aspirativa com agulha fina perlesões, colhidos em abatedouro. C. pseudotuberculosis mitiu identificar microrganismos "corineformes" em 79 (79,0%) animais com linfadenite e, destes, 73 (73,0%) foram identificados como C. pseudotuberculosis. Nenhuma linhagem de C. pseudotuberculosis foi isolada dos linfonodos dos animais sem lesões. Concluiu-se que C. pseudotuberculosis foi o microrganismo mais freqüente nos ovinos com linfadenite, e que a citologia aspirativa pode ser utilizada como método de triagem no diagnóstico da linfadenite caseosa ovina
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4

Wareth, Gamal, Jayaseelan Murugaiyan, Dalia F. Khater, and Shawky Ahmed Moustafa. "Subclinical pulmonary pathogenic infection in camels slaughtered in Cairo, Egypt." Journal of Infection in Developing Countries 8, no. 07 (July 14, 2014): 909–13. http://dx.doi.org/10.3855/jidc.4810.

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Introduction: Camels migrate between the open boundaries of Sudan and Egypt either for grazing or for slaughtering. Bad hygiene and stress is often related to pulmonary diseases in camels. This study investigated whether camels slaughtered in Cairo carried pulmonary infections. Methodology: Five hundred lung tissues of slaughtered camels were examined and 100 samples suspected for pulmonary infection were subjected to microbial identification and histopathology. Results: A total of 70 lung tissues revealed 97 bacterial isolates of 8 species, including Staphylococcus aureus (37.14%), Escherichia coli (27.14%), Klebsiella pneumoniae (26.71%), Bacillus spp. (25.72%), Streptococcus pyogenes (10%), Corynebacterium spp. (8.85 %), Pasteurella spp. (2.85%), and Arcanobacterium pyogenes (1.4%). Some of these species were earlier reported to be associated with pulmonary infection. Histopathology revealed different types of pneumonia in 50% of the investigated lungs. Conclusions: A considerable number of apparently healthy camels carry pathogenic agents in their lower respiratory tracts. Immunosuppression and stressful conditions might influence these pathogens to induce respiratory diseases in camels. Thus, the infected camels might act as reservoir of these infections agents. If adequate care is not taken, this might be a threat to abattoir workers and may spread infections to humans.
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Jost, B. Helen, Adam C. Field, Hien T. Trinh, J. Glenn Songer, and Stephen J. Billington. "Tylosin Resistance in Arcanobacterium pyogenes Is Encoded by an Erm X Determinant." Antimicrobial Agents and Chemotherapy 47, no. 11 (November 2003): 3519–24. http://dx.doi.org/10.1128/aac.47.11.3519-3524.2003.

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ABSTRACT Arcanobacterium pyogenes, a commensal on the mucous membranes of many economically important animal species, is also a pathogen, causing abscesses of the skin, joints, and visceral organs as well as mastitis and abortion. In food animals, A. pyogenes is exposed to antimicrobial agents used for growth promotion, prophylaxis, and therapy, notably tylosin, a macrolide antibiotic used extensively for the prevention of liver abscessation in feedlot cattle in the United States. Of 48 A. pyogenes isolates, 11 (22.9%) exhibited inducible or constitutive resistance to tylosin (MIC of ≥128 μg/ml). These isolates also exhibited resistance to other macrolide and lincosamide antibiotics, suggesting a macrolide-lincosamide resistance phenotype. Of the 11 resistant isolates, genomic DNA from nine hybridized to an erm(X)-specific probe. Cloning and nucleotide sequencing of the A. pyogenes erm(X) gene indicated that it was >95% similar to erm(X) genes from Corynebacterium and Propionibacterium spp. Eight of the erm(X)-containing A. pyogenes isolates exhibited inducible tylosin resistance, which was consistent with the presence of a putative leader peptide upstream of the erm(X) open reading frame. For at least one A. pyogenes isolate, 98-4277-2, erm(X) was present on a plasmid, pAP2, and was associated with the insertion sequence IS6100. pAP2 also carried genes encoding the repressor-regulated tetracycline efflux system determinant Tet 33. The repA gene from pAP2 was nonfunctional in Escherichia coli and at least one A. pyogenes isolate, suggesting that there may be host-encoded factors required for replication of this plasmid.
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6

Đuričić, Dražen, Tomislav Sukalić, Franjo Marković, Predrag Kočila, Ivona Žura Žaja, Sven Menčik, Tomislav Dobranić, Miroslav Benić, and Marko Samardžija. "Effects of Dietary Vibroactivated Clinoptilolite Supplementation on the Intramammary Microbiological Findings in Dairy Cows." Animals 10, no. 2 (January 25, 2020): 202. http://dx.doi.org/10.3390/ani10020202.

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The aim of this study was to determine the effects of dietary vibroactivated clinoptilolite supplementation on the intramammary microbiological findings in dairy cows, causative agents of potential intramammary infection, and their sensitivity to antibiotics. Cows (n = 78) were randomly divided into two groups: CPL-treated group that received clinoptilolite (CPL) in-feed (n = 38), i.e., 50 g natural powdered zeolite CPL, twice daily from the seventh month of pregnancy to 75 days after calving, and the control group (CON) of untreated cows (n = 40). Milk samples were taken from each cow on days 7, 25, 45, and 75 postpartum. The following causative pathogens were isolated in 86 udder quarters: Staphylococcus aureus in 5.81% of positive samples, Staphylococcus spp. 9.32%, coagulase-negative Staphylococcus (CNS) 22.09%, Streptococcus uberis 13.95%, Streptococcus agalactiae 1.16%, Streptococcus sp. 3.49%, Escherichia coli 8.13%, Enterococcus spp. 6.98%, Corynebacterium spp. 11.63%, Pasteurella sp. 10.47%, Serratia spp. 2.33%, and Arcanobacterium pyogenes, Citrobacter sp., Prototheca sp., and yeasts each in 1.16% of samples. Additionally, 3.87% of environmental microflora samples (n = 47) and 89.06% of udder samples (n = 1083) were bacteriologically negative. The most effective antibiotics were cefoperazone and amoxicillin-clavulanic acid, while cloxacillin and tetracycline were the least effective antibiotics in both groups. In the clinoptilolite supplemented (CPL) group (n = 38) of 14 cows, nine causative agents of mastitis were isolated in 27 quarters, while in the control (CON) group (n = 40) of 24 cows, 13 causative agents of mastitis were isolated in 59 quarters. Cows from the CON group had a 1.96 times higher risk of intramammary infection than cows from the CPL group during the observation period (odds ratio = 1.96, p = 0.0031; 95% CI = 1.2570–3.0770).
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Radanovic, Oliver, Jadranka Zutic, Dobrila Jakic-Dimic, Branislav Kureljusic, and Bozidar Savic. "The Prevalence of Pasteurella Multocida from Farm Pigs in Serbia." Macedonian Veterinary Review 39, no. 1 (March 1, 2016): 39–42. http://dx.doi.org/10.1515/macvetrev-2015-0063.

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AbstractThe investigations covered a total of 234 lungs from necropsied pigs with different pneumonic lesions, from 6 farrow-to-finish pig farms during 2013 and 2014. The samples were inoculated on selective culture media and aerobically incubated at 37°C and in carbon dioxide condition. The isolated bacterial colonies were further characterised morphologically and biochemically. The identification was confirmed using the BBL Crystal, E/N, G/P ID Kit (Becton Dickinson). For determination of the type of Pasteurella multocida, the PCR method was used. The findings showed that bacteria were isolated from 202 (86%) out of 234 examined lung samples. The pure isolates of Pasteurella multocida were obtained from 71 (35 %) samples. Out of the remaining 29 (14%) examined lung samples, 9, 8, 7 and 5 examined lung samples were shown as mixed cultures of Pasteurella multocida and Streptococcus spp., Arcanobacterium pyogenes, Actinobacillus pleuropneumoniae and Haemophilus parasuis, respectively. The PCR method confirmed that all 15 investigated strains of P. multocida belong to type A.
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Schlesinger, David J., Nadja B. Shoemaker, and Abigail A. Salyers. "Possible Origins of CTnBST, a Conjugative Transposon Found Recently in a Human Colonic Bacteroides Strain." Applied and Environmental Microbiology 73, no. 13 (May 4, 2007): 4226–33. http://dx.doi.org/10.1128/aem.00455-07.

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ABSTRACT A previous survey of Bacteroides isolates suggested that the ermB gene entered Bacteroides spp. recently. Previously, ermB had been found almost exclusively in gram-positive bacteria. In one Bacteroides strain, ermB was located on 100-kb conjugative transposon (CTn) CTnBST. To assess the possible origin of this CTn, we obtained the full DNA sequence of CTnBST and used this information to investigate its possible origins. Over one-half of CTnBST had high sequence identity to a putative CTn found in the genome of Bacteroides fragilis YCH46. This included the ends of the CTn and genes involved in integration, transfer, and excision. However, the region around the ermB gene contained genes that appeared to originate from gram-positive organisms. In particular, a 7-kb segment containing the ermB gene was 100% identical to an ermB region found in the genome of the gram-positive bacterium Arcanobacterium pyogenes. A screen of Bacteroides isolates whose DNA cross-hybridized with a CTnBST probe revealed that several isolates did not carry the 7-kb region, implying that the acquisition of this region may be more recent than the acquisition of the entire CTnBST element by Bacteroides spp. We have also identified other Bacteroides isolates that carry a slightly modified 7-kb region but have no other traces of CTnBST. Thus, it is possible that this 7-kb region could itself be part of a mobile element that has inserted in a Bacteroides CTn. Our results show that CTnBST is a hybrid element which has acquired a portion of its coding region from gram-positive bacteria but which may originally have come from Bacteroides spp. or some related species.
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Klopfleisch, R., U. Polster, K. Klingler, and J. P. Teifke. "Hochgradige, aber klinisch »stumme« Cholangiolithiasis beim Rind." Tierärztliche Praxis Ausgabe G: Großtiere / Nutztiere 32, no. 01 (2004): 13–17. http://dx.doi.org/10.1055/s-0038-1623280.

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ZusammenfassungBerichte über Konkremente der Gallenwege bei Haustieren sind selten, nicht zuletzt deshalb, weil die Cholelithiasis beim Tier meist klinisch inapparent verläuft. Bei Rindern können Gallensteine aber gelegentlich zu Kolikerscheinungen mit Diarrhö führen. Gallenpigmentsteine und Gallenpigment- Kalksteine stellen bei dieser Tierart den häufigsten Steintyp dar. Der vorliegende Beitrag berichtet über eine massive, jedoch klinisch inapparente Cholelithiasis bei einem 17-jährigen, weiblichen Niederungsrind. Bei der Sektion des mit dem bovinen Leukosevirus infizierten Tieres fand sich eine hochgradige chronisch-eitrige Cholangitis und Pericholangitis. Das Lumen aller größeren Gallengänge füllten annähernd 100, zwischen 5 und 10 mm große, rundliche bis polygonale, meist facettierte Cholelithen aus. Die Konkremente waren von orangebrauner Farbe und fester Konsistenz, im Anschnitt geschichtet. Histopathologisch ließen sich zwischen den Schichten der Gallensteine an mehreren Lokalisationen große Haufen kokkoider bis kurzstäbchenförmiger grampositiver Bakterien nachweisen, die durch bakteriologische Untersuchung als Arcanobacterium spp. und Sphingomonas paucimobilis bestimmt wurden. Mittels infrarotspektroskopischer Untersuchung konnten als Hauptbestandteile der Konkremente 85% Kalziumbilirubinat und 15% Bilirubin festgestellt werden. Der Nachweis von Bakterien in den Konkrementen spricht in diesem Fall in hohem Maße für eine Beteiligung der Mikroorganismen an der Cholelithogenese.
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Hudspeth, Marie K., Sharon Hunt Gerardo, Diane M. Citron, and Ellie J. C. Goldstein. "Evaluation of the RapID CB Plus System for Identification of Corynebacterium Species and Other Gram-Positive Rods." Journal of Clinical Microbiology 36, no. 2 (1998): 543–47. http://dx.doi.org/10.1128/jcm.36.2.543-547.1998.

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Due to the difficulty of identifying Corynebacteriumspp. with standard methods, we compared them with the RapID CB Plus system (Remel, Lenexa, Kans. [formerly Innovative Diagnostic Systems, Norcross, Ga.]), which consists of 4 carbohydrate and 14 preformed enzyme tests, for the identification of 98 clinical isolates of Corynebacterium sp., other coryneforms,Listeria monocytogenes, and 17 ATCC strains. Forty (95%) of 42 strains of Corynebacterium spp. were accurately identified to the species level by the RapID CB Plus system, and two additional strains of C. striatum were identified with one additional conventional test for lipid requirement. Twenty-seven (75%) of the 36 coryneform strains tested were identified correctly to the species level. However, three of four strains of Brevibacterium sp. and all seven of theL. monocytogenes strains were identified to the genus level only. Actinomyces strains had variable results, and the one strain of Arcanobacterium haemolyticum tested was not identified. Overall, the RapID CB Plus system compared favorably with the conventional methods, was easy to inoculate and interpret, and is promising as a new method for identification of gram-positive bacilli.
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Book chapters on the topic "Arcanobacterium spp"

1

Jost, B. Helen, and Stephen J. Billington. "Actinomyces and Arcanobacterium spp.: Host-Microbe Interactions." In Gram-Positive Pathogens, 738–49. Washington, DC, USA: ASM Press, 2014. http://dx.doi.org/10.1128/9781555816513.ch60.

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Feßler, Andrea T., and Stefan Schwarz. "Antimicrobial Resistance in Corynebacterium spp., Arcanobacterium spp., and Trueperella pyogenes." In Antimicrobial Resistance in Bacteria from Livestock and Companion Animals, 395–408. Washington, DC, USA: ASM Press, 2018. http://dx.doi.org/10.1128/9781555819804.ch18.

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Feßler, Andrea T., and Stefan Schwarz. "Antimicrobial Resistance in Corynebacterium spp., Arcanobacterium spp., and Trueperella pyogenes." In Antimicrobial Resistance in Bacteria from Livestock and Companion Animals, 395–408. American Society of Microbiology, 2018. http://dx.doi.org/10.1128/microbiolspec.arba-0021-2017.

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