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Cattaneo L, Piccioli-Cappelli F, Lopreiato V, Lovotti G, Arrigoni N, Minuti A, Trevisi E. Drying-off cows with low somatic cell count with or without antibiotic therapy: A pilot study addressing the effects on immunometabolism and performance in the subsequent lactation. Livest Sci 2021. [DOI: 10.1016/j.livsci.2021.104740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Martucciello A, Galletti G, Pesce A, Russo M, Sannino E, Arrigoni N, Ricchi M, Tamba M, Brunetti R, Ottaiano M, Iovane G, De Carlo E. Short communication: Seroprevalence of paratuberculosis in Italian water buffaloes (Bubalus bubalis) in the region of Campania. J Dairy Sci 2021; 104:6194-6199. [PMID: 33685689 DOI: 10.3168/jds.2020-19022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 12/15/2020] [Indexed: 11/19/2022]
Abstract
Paratuberculosis is a chronic enteric disease affecting virtually all ruminants, but only anecdotal information is currently available about the occurrence of this disease in water buffaloes (Bubalus bubalis). We carried out a survey study aimed at determining the prevalence of paratuberculosis in 2 provinces in the region of Campania, Italy, where about half of all Italian buffaloes are reared. From May 2017 to December 2018, we collected 201,175 individual serum samples from 995 buffalo herds. The sera were collected from animals over 24 mo old and were tested using a commercial ELISA test. The herd-level apparent prevalence result was 54.7%, and the animal-level apparent prevalence was 1.8%. The herd-level true prevalence was estimated using a Bayesian approach, demonstrating a high herd-level prevalence of paratuberculosis in water buffaloes from the Campania area. These findings suggest that the urgent adoption of paratuberculosis herd-control programs for water buffaloes in this area would be beneficial.
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Affiliation(s)
- A Martucciello
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, National Reference Centre for Hygiene and Technologies of Water Buffaloes Farming and Production, c/o Diagnostic Section of Salerno, S.S.18 Via delle Calabrie 27, 84131 Fuorni (SA) Italy
| | - G Galletti
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, Epidemiology Unit, Via P. Fiorini, 5, 40127 Bologna, Italy
| | - A Pesce
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Diagnostic Section of Caserta, Via A. Jervolino, 19, 81044 Tuoro (CE), Italy
| | - M Russo
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, National Reference Centre for Hygiene and Technologies of Water Buffaloes Farming and Production, c/o Diagnostic Section of Salerno, S.S.18 Via delle Calabrie 27, 84131 Fuorni (SA) Italy
| | - E Sannino
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Diagnostic Section of Caserta, Via A. Jervolino, 19, 81044 Tuoro (CE), Italy
| | - N Arrigoni
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, National Reference Centre for Paratuberculosis, Strada Faggiola 1, 29027 Podenzano (PC), Italy
| | - M Ricchi
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, National Reference Centre for Paratuberculosis, Strada Faggiola 1, 29027 Podenzano (PC), Italy.
| | - M Tamba
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, Epidemiology Unit, Via P. Fiorini, 5, 40127 Bologna, Italy
| | - R Brunetti
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Osservatorio Epidemiologico Regionale, Via Salute 2, 80055 Portici (Naples), Italy
| | - M Ottaiano
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, Osservatorio Epidemiologico Regionale, Via Salute 2, 80055 Portici (Naples), Italy
| | - G Iovane
- UNINA-Dipartimento di Medicina Veterinaria e Produzioni Animali, Via Delpino 1, 80137 Napoli, Italy
| | - E De Carlo
- Istituto Zooprofilattico Sperimentale del Mezzogiorno, National Reference Centre for Hygiene and Technologies of Water Buffaloes Farming and Production, c/o Diagnostic Section of Salerno, S.S.18 Via delle Calabrie 27, 84131 Fuorni (SA) Italy
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Cammi G, Ricchi M, Galiero A, Daminelli P, Cosciani-Cunico E, Dalzini E, Losio M, Savi R, Cerutti G, Garbarino C, Leo S, Arrigoni N. Evaluation of Mycobacterium avium subsp. paratuberculosis survival during the manufacturing process of Italian raw milk hard cheeses (Parmigiano Reggiano and Grana Padano). Int J Food Microbiol 2019; 305:108247. [DOI: 10.1016/j.ijfoodmicro.2019.108247] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 06/05/2019] [Accepted: 06/06/2019] [Indexed: 01/16/2023]
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Ricchi M, Scaltriti E, Cammi G, Garbarino C, Arrigoni N, Morganti M, Pongolini S. Short communication: Persistent contamination by Listeria monocytogenes of bovine raw milk investigated by whole-genome sequencing. J Dairy Sci 2019; 102:6032-6036. [PMID: 31103293 DOI: 10.3168/jds.2019-16267] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 03/20/2019] [Indexed: 12/21/2022]
Abstract
Following the persistent detection of Listeria monocytogenes in raw bovine milk sold through a vending machine, the 120 lactating cows of the herd producing the milk were subjected to bacteriological investigation. A single cow with subclinical mastitis (1.2-1.3 × 105 somatic cells/mL) and persistent L. monocytogenes excretion was detected. The cow was subjected to antimicrobial therapy, but L. monocytogenes excretion remained high (>3.0 × 102 cfu/mL). Following culling of the infected cow, L. monocytogenes disappeared from the tank milk, and further isolates were recovered from the mammary parenchyma and lymph nodes of the infected cow. To investigate the clonal nature of the contamination, all isolates recovered in the study (n = 13) were analyzed by serogroup PCR, pulsed-field gel electrophoresis, and whole-genome sequencing. Our results demonstrated the clonal nature of the contamination. All isolates belonged to lineage II, serogroup IIa, sequence type 37, clonal complex 37 and harbored some virulence determinants. This case showed that, although relatively rare, prolonged milk contamination by L. monocytogenes can originate from subclinical and persistently infected cows, posing a health risk to consumers.
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Affiliation(s)
- M Ricchi
- Diagnostic Section of Piacenza, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Strada Faggiola 1, 29027-Gariga di Podenzano, (PC), Italy.
| | - E Scaltriti
- Risk Analysis and Genomic Epidemiology Unit, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Via dei Mercati 13/A, 43126-Parma, Italy
| | - G Cammi
- Diagnostic Section of Piacenza, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Strada Faggiola 1, 29027-Gariga di Podenzano, (PC), Italy
| | - C Garbarino
- Diagnostic Section of Piacenza, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Strada Faggiola 1, 29027-Gariga di Podenzano, (PC), Italy
| | - N Arrigoni
- Diagnostic Section of Piacenza, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Strada Faggiola 1, 29027-Gariga di Podenzano, (PC), Italy
| | - M Morganti
- Risk Analysis and Genomic Epidemiology Unit, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Via dei Mercati 13/A, 43126-Parma, Italy
| | - S Pongolini
- Risk Analysis and Genomic Epidemiology Unit, Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna (IZSLER), Via dei Mercati 13/A, 43126-Parma, Italy
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Mazzone P, Corneli S, Di Paolo A, Maresca C, Felici A, Biagetti M, Ciullo M, Sebastiani C, Pezzotti G, Leo S, Ricchi M, Arrigoni N. Survival of Mycobacterium avium subsp. paratuberculosis in the intermediate and final digestion products of biogas plants. J Appl Microbiol 2018; 125:36-44. [PMID: 29573309 DOI: 10.1111/jam.13762] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 03/02/2018] [Accepted: 03/12/2018] [Indexed: 01/13/2023]
Abstract
AIMS To evaluate the survival of Mycobacterium avium subsp. paratuberculosis (MAP) during anaerobic digestion (AD), we studied two different biogas plants loaded with manure and slurry from paratuberculosis-infected dairy herds. METHODS AND RESULTS Both plants were operating under mesophilic conditions, the first with a single digester and the second with a double digester. Mycobacterium avium subsp. paratuberculosis detection was performed by sampling each stage of the process, specifically the prefermenter, fermenter, liquid digestate and solid digestate stages, for 11 months. In both plants, MAP was isolated from the prefermenter stage. Only the final products, the solid and liquid digestates, of the one-stage plant showed viable MAP, while no viable MAP was detected in the digestates of the two-stage plant. CONCLUSIONS Mycobacterium avium subsp. paratuberculosis showed a significant decrease during subsequent steps of the AD process, particularly in the two-stage plant. We suggest that the second digester maintained the digestate under anaerobic conditions for a longer period of time, thus reducing MAP survival and MAP load under the culture detection limit. SIGNIFICANCE AND IMPACT OF THE STUDY Our data are unable to exclude the presence of MAP in the final products of the biogas plants, particularly those products from the single digester; therefore, the use of digestates as fertilizers is a real concern related to the possible environmental contamination with MAP.
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Affiliation(s)
- P Mazzone
- Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche, Perugia, Italy
| | - S Corneli
- Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche, Perugia, Italy
| | - A Di Paolo
- Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche, Perugia, Italy
| | - C Maresca
- Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche, Perugia, Italy
| | - A Felici
- Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche, Perugia, Italy
| | - M Biagetti
- Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche, Perugia, Italy
| | - M Ciullo
- Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche, Perugia, Italy
| | - C Sebastiani
- Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche, Perugia, Italy
| | - G Pezzotti
- Istituto Zooprofilattico Sperimentale dell'Umbria e delle Marche, Perugia, Italy
| | - S Leo
- Centro di Referenza Nazionale per la Paratubercolosi, Istituto Zooprofilattico Sperimentale della Lombardia ed Emilia Romagna, Piacenza, Italy
| | - M Ricchi
- Centro di Referenza Nazionale per la Paratubercolosi, Istituto Zooprofilattico Sperimentale della Lombardia ed Emilia Romagna, Piacenza, Italy
| | - N Arrigoni
- Centro di Referenza Nazionale per la Paratubercolosi, Istituto Zooprofilattico Sperimentale della Lombardia ed Emilia Romagna, Piacenza, Italy
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Ricchi M, Mazzarelli A, Piscini A, Di Caro A, Cannas A, Leo S, Russo S, Arrigoni N. Exploring MALDI-TOF MS approach for a rapid identification of Mycobacterium avium ssp. paratuberculosis field isolates. J Appl Microbiol 2017; 122:568-577. [PMID: 27868301 DOI: 10.1111/jam.13357] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 10/31/2016] [Accepted: 11/16/2016] [Indexed: 11/30/2022]
Abstract
AIMS The aim of the study was to explore the suitability of matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry (MALDI-TOF MS) for a rapid and correct identification of Mycobacterium avium ssp. paratuberculosis (MAP) field isolates. METHODS AND RESULTS MALDI-TOF MS approach is becoming one of the most popular tests for the identification of intact bacterial cells which has been shown to be fast and reliable. For this purpose, 36 MAP field isolates were analysed through MALDI-TOF MS and the spectra compared with two different databases: one provided by the vendor of the system employed (Biotyper ver. 3·0; Bruker Daltonics) and a homemade database containing spectra from both tuberculous and nontuberculous Mycobacteria. Moreover, principal component analysis procedure was employed to confirm the ability of MALDI-TOF MS to discriminate between very closely related subspecies. Our results suggest MAP can be differentiated from other Mycobacterium species, both when the species are very close (M. intracellulare) and when belonging to different subspecies (M. avium ssp. avium and M. avium ssp. silvaticum). CONCLUSIONS The procedure applied is fast, easy to perform, and achieves an earlier accurate species identification of MAP and nontuberculous Mycobacteria in comparison to other procedures. SIGNIFICANCE AND IMPACT OF THE STUDY The gold standard test for the diagnosis of paratuberculosis is still isolation of MAP by cultural methods, but additional assays, such as qPCR and subculturing for determination of mycobactin dependency are required to confirm its identification. We have provided here evidence pertaining to the usefulness of MALDI-TOF MS approach for a rapid identification of this mycobacterium among other members of M. avium complex.
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Affiliation(s)
- M Ricchi
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, National Reference Centre for Paratuberculosis, Gariga di Podenzano, Italy
| | - A Mazzarelli
- Laboratorio di Microbiologia e Banca Biologica, Istituto Nazionale per le Malattie Infettive "L. Spallanzani", IRCCS, Rome, Italy
| | - A Piscini
- Laboratorio di Microbiologia e Banca Biologica, Istituto Nazionale per le Malattie Infettive "L. Spallanzani", IRCCS, Rome, Italy
| | - A Di Caro
- Laboratorio di Microbiologia e Banca Biologica, Istituto Nazionale per le Malattie Infettive "L. Spallanzani", IRCCS, Rome, Italy
| | - A Cannas
- Laboratorio di Microbiologia e Banca Biologica, Istituto Nazionale per le Malattie Infettive "L. Spallanzani", IRCCS, Rome, Italy
| | - S Leo
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, National Reference Centre for Paratuberculosis, Gariga di Podenzano, Italy
| | - S Russo
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, National Reference Centre for Paratuberculosis, Gariga di Podenzano, Italy
| | - N Arrigoni
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, National Reference Centre for Paratuberculosis, Gariga di Podenzano, Italy
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Serraino A, Bonilauri P, Giacometti F, Ricchi M, Cammi G, Piva S, Zambrini V, Canever A, Arrigoni N. Short communication: Investigation into Mycobacterium avium ssp. paratuberculosis in pasteurized milk in Italy. J Dairy Sci 2016; 100:118-123. [PMID: 27816242 DOI: 10.3168/jds.2016-11627] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 09/11/2016] [Indexed: 11/19/2022]
Abstract
This study investigated the presence of viable Mycobacterium avium ssp. paratuberculosis (MAP) in pasteurized milk produced by Italian industrial dairy plants to verify the prediction of a previously performed risk assessment. The study analyzed 160 one-liter bottles of pasteurized milk from 2 dairy plants located in 2 different regions. Traditional cultural protocols were applied to 500mL of pasteurized milk for each sample. The investigation focused also on the pasteurization parameters and data on the microbiological characteristics of raw milk (total bacterial count) and pasteurized milk (Enterobacteriaceae and Listeria monocytogenes). No sample was positive for MAP, the pasteurization parameters complied with European Union legislation, and the microbiological analysis of raw and pasteurized milk showed good microbiological quality. The results show that a 7-log (or >7) reduction could be a plausible value for commercial pasteurization. The combination of hygiene practices at farm level and commercial pasteurization yield very low or absent levels of MAP contamination in pasteurized milk, suggesting that pasteurized milk is not a significant source of human exposure to MAP in the dairies investigated.
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Affiliation(s)
- A Serraino
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia (BO), Italy
| | - P Bonilauri
- Institute for Zooprophylaxis in Lombardy and Emilia-Romagna, Via Pitagora 2, 42100 Reggio Emilia, Italy
| | - F Giacometti
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia (BO), Italy.
| | - M Ricchi
- National Reference Centre for Paratuberculosis, Experimental Institute for Zooprophylaxis in Lombardy and Emilia-Romagna, Strada della Faggiola 1, 29027 Gariga di Podenzano (PC), Italy
| | - G Cammi
- National Reference Centre for Paratuberculosis, Experimental Institute for Zooprophylaxis in Lombardy and Emilia-Romagna, Strada della Faggiola 1, 29027 Gariga di Podenzano (PC), Italy
| | - S Piva
- Department of Veterinary Medical Sciences, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano Emilia (BO), Italy
| | - V Zambrini
- Granarolo s.p.a, Via Cadriano 27/2, 40121 Bologna, Italy
| | - A Canever
- Granarolo s.p.a, Via Cadriano 27/2, 40121 Bologna, Italy
| | - N Arrigoni
- National Reference Centre for Paratuberculosis, Experimental Institute for Zooprophylaxis in Lombardy and Emilia-Romagna, Strada della Faggiola 1, 29027 Gariga di Podenzano (PC), Italy
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Barberio A, Flaminio B, De Vliegher S, Supré K, Kromker V, Garbarino C, Arrigoni N, Zanardi G, Bertocchi L, Gobbo F, Catania S, Moroni P. Short communication: In vitro antimicrobial susceptibility of Mycoplasma bovis isolates identified in milk from dairy cattle in Belgium, Germany, and Italy. J Dairy Sci 2016; 99:6578-6584. [DOI: 10.3168/jds.2015-10572] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 04/09/2016] [Indexed: 11/19/2022]
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Savi R, Ricchi M, Cammi G, Garbarino C, Leo S, Pongolini S, Arrigoni N. Survey on the presence of Mycobacterium avium subsp. paratuberculosis in ground beef from an industrial meat plant. Vet Microbiol 2015; 177:403-8. [PMID: 25824129 DOI: 10.1016/j.vetmic.2015.03.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 03/10/2015] [Accepted: 03/12/2015] [Indexed: 11/28/2022]
Abstract
Paratuberculosis of ruminants is characterised by chronic enteritis but, at advanced stages of the disease, a systemic dissemination of Mycobacterium avium subsp. paratuberculosis (MAP) in tissues and organs can occur. MAP has been recovered from lymph nodes and muscles of clinical and sub-clinical cows. In most countries, dairy and beef cattle infected with paratuberculosis are routinely sent to slaughter and the consumption of their meat could be a possible route of human exposure to MAP. However, few studies on MAP in ground beef are currently available. During the period November 2013-March 2014 we carried out a survey on the ground beef produced in an industrial meat processing plant. One-hundred and forty samples of ground meat were analysed by IS900-qPCR and culture (VersaTrek System). The limit of detection (LOD) of qPCR was 630 MAP cells/g (107 CFU/g) while the LOD for culture was 170-230 MAP cells/g (62-115 CFU/g). No samples were positive by direct IS900 qPCR, while two samples were positive by liquid culture. Our data suggest that the presence of live MAP in raw minced meat is possible. In order to avoid exposure for humans through the consumption of contaminated meat, proper cooking of meat is recommended.
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Affiliation(s)
- R Savi
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, National Reference Centre for Paratuberculosis, Strada Faggiola 1, Loc. Gariga-Podenzano (PC) 29027, Italy
| | - M Ricchi
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, National Reference Centre for Paratuberculosis, Strada Faggiola 1, Loc. Gariga-Podenzano (PC) 29027, Italy.
| | - G Cammi
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, National Reference Centre for Paratuberculosis, Strada Faggiola 1, Loc. Gariga-Podenzano (PC) 29027, Italy
| | - C Garbarino
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, National Reference Centre for Paratuberculosis, Strada Faggiola 1, Loc. Gariga-Podenzano (PC) 29027, Italy
| | - S Leo
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, National Reference Centre for Paratuberculosis, Strada Faggiola 1, Loc. Gariga-Podenzano (PC) 29027, Italy
| | - S Pongolini
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, Centro di Referenza Nazionale per i Rischi Emergenti in Sicurezza Alimentare and Diagnostic Section of Parma, Via dei Mercati 5, Parma 43121, Italy
| | - N Arrigoni
- Istituto Zooprofilattico Sperimentale della Lombardia e dell'Emilia Romagna, National Reference Centre for Paratuberculosis, Strada Faggiola 1, Loc. Gariga-Podenzano (PC) 29027, Italy
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Serraino A, Arrigoni N, Ostanello F, Ricchi M, Marchetti G, Bonilauri P, Bonfante E, Giacometti F. A screening sampling plan to detect Mycobacterium avium subspecies paratuberculosis-positive dairy herds. J Dairy Sci 2014; 97:3344-51. [DOI: 10.3168/jds.2013-7803] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2013] [Accepted: 02/14/2014] [Indexed: 11/19/2022]
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Pozzato N, Capello K, Comin A, Toft N, Nielsen S, Vicenzoni G, Arrigoni N. Prevalence of paratuberculosis infection in dairy cattle in Northern Italy. Prev Vet Med 2011; 102:83-6. [DOI: 10.1016/j.prevetmed.2011.07.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2011] [Revised: 07/08/2011] [Accepted: 07/09/2011] [Indexed: 10/18/2022]
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Cammi G, Merenda M, Garilli F, Ricchi M, Garbarino C, Arrigoni N, Belletti G. SURVEY ON PROTOTHECA SPP. OCCURRENCE IN RAW MILK FROM AUTOMATIC DISPENSER: PUBLIC HEALTH CONCERN. Ital J Food Saf 2011. [DOI: 10.4081/ijfs.2011.1s.87] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Ricchi M, Goretti M, Branda E, Cammi G, Garbarino C, Turchetti B, Moroni P, Arrigoni N, Buzzini P. Molecular characterization of Prototheca strains isolated from Italian dairy herds. J Dairy Sci 2010; 93:4625-31. [DOI: 10.3168/jds.2010-3178] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2010] [Accepted: 06/25/2010] [Indexed: 11/19/2022]
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Ricchi M, Cammi G, Garbarino CA, Buzzini P, Belletti GL, Arrigoni N. A rapid real-time PCR/DNA resolution melting method to identify Prototheca species. J Appl Microbiol 2010; 110:27-34. [PMID: 20880214 DOI: 10.1111/j.1365-2672.2010.04861.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM The study describes the development of a simple and rapid tool to identify yeast-like microalgae belonging to the genus Prototheca. METHODS AND RESULTS The method, based on two-step Real Time PCR reaction followed by DNA Resolution Melting Analysis (qPCR/RMA), has been developed using reference strains belonging to both pathogenic (P. zopfii genotype 2, P. wickerhamii and P. blaschkeae) and non-pathogenic species (P. zopfii genotype 1, P. stagnora and P. ulmea). In order to validate the method, seventy recently isolated Prototheca strains were thus tested in parallel with both the first qPCR/RMA and the conventional genotype-specific PCR assay: they were classified as P. zopfii genotype 1, P. zopfii genotype 2 and P. blaschkeae, with a perfect accordance between the two above methodologies. Furthermore, we used the second qPCR/RMA to identify the other species (P. stagnora, P. ulmea and P. wickerhamii), which cannot be discriminated by conventional PCR assay. CONCLUSIONS The assay two-step Real Time PCR is accurate, robust, cost-effective and faster than auxonographical, biochemical or conventional molecular biology methods. SIGNIFICANCE AND IMPACT OF THE STUDY the rapid and high throughout two-step qPCR/RMA tool can be usefully used for the identification of clinical and environmental Prototheca species into the framework of the diagnosis of animal (e.g. bovine mastitis) or human protothecosis.
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Affiliation(s)
- M Ricchi
- Istituto Zooprofilattico Sperimentale della Lombardia e Emilia Romagna, Piacenza, Italy.
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Scaccabarozzi L, Turchetti B, Buzzini P, Pisoni G, Bertocchi L, Arrigoni N, Boettcher P, Bronzo V, Moroni P. Short communication: isolation of Prototheca species strains from environmental sources in dairy herds. J Dairy Sci 2008; 91:3474-7. [PMID: 18765606 DOI: 10.3168/jds.2008-1115] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Composite milk samples from 548 cows, and samples from feces, feed, bedding, water, liners (before and after milking), and the postdipping product were aseptically collected from 2 Italian dairy herds from February to November of 2006. Prototheca zopfii was isolated from 11.9% of milk samples, 15% of feces, and 33.3% of bedding samples. No viable cells of P. zopfii were observed in water before washing procedures, whereas 25 to 28.6% of samples from water used for washing both refrigeration tanks and milking equipment were contaminated with this yeast-like microalga. Analogously, the presence of P. zopfii was detected only on swabs collected from the liners after milking. Interestingly, in 1 of the 2 herds, water from the drinking trough was contaminated by viable cells of both P. zopfii and the related environmental species Prototheca stagnora. No viable cells were observed in cow feed. On the basis of the results presented herein, P. zopfii seemed to be widespread throughout the environments of dairy herds where outbreaks of bovine mastitis had occurred.
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Affiliation(s)
- L Scaccabarozzi
- Department of Veterinary Pathology, Hygiene and Public Health, University of Milan, via Celoria 10, 20133 Milan, Italy
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Taddei R, Barbieri I, Pacciarini M, Fallacara F, Belletti G, Arrigoni N. Mycobacterium porcinum strains isolated from bovine bulk milk: Implications for Mycobacterium avium subsp. paratuberculosis detection by PCR and culture. Vet Microbiol 2008; 130:338-47. [DOI: 10.1016/j.vetmic.2008.02.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2007] [Revised: 02/11/2008] [Accepted: 02/14/2008] [Indexed: 10/22/2022]
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Aquilani R, Viglio S, Iadarola P, Guarnaschelli C, Arrigoni N, Fugazza G, Catapano M, Boschi F, Dossena M, Pastoris O. Peripheral plasma amino acid abnormalities in rehabilitation patients with severe brain injury. Arch Phys Med Rehabil 2000; 81:176-81. [PMID: 10668771 DOI: 10.1016/s0003-9993(00)90137-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVE Acute severe brain injury causes an increased mobilization of amino acids from tissue. The plasma amino acid profile of patients undergoing rehabilitation after brain injury is unknown. This study was aimed at delineating the plasma amino acid profile of rehabilitation patients with brain injury. DESIGN Peripheral plasma aminogram, lactate, pyruvate, glycerol, ketone body, and carnitine concentrations were determined in 11 patients with brain injury (34.6+/-15 years old, 60+/-16.8 days after injury) and in 8 controls. Resting energy expenditure and nitrogen balance were also determined. RESULTS (1) All essential amino acids and about 50% of nonessential amino acids were significantly lower in brain injury patients than in controls (p < .05). (2) Plasma amino acids were lower irrespective of either energy and protein intake or nitrogen balance. (3) Total carnitine concentration and esterified/free carnitine ratio were higher in brain injury patients than in controls (p < .05). CONCLUSIONS Rehabilitation patients with brain injury may have an important reduction of their plasma aminogram. Muscle tissue depletion and the persistence of a hypercatabolic state caused by subclinical infections, pressure sores, and immobility may contribute to this reduction.
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Affiliation(s)
- R Aquilani
- Service of Metabolic and Nutritional Pathophysiology, S. Maugeri Foundation, IRCCS-Montescano, Italy
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Affiliation(s)
- A. Cucchi
- Divisione di Urologia, Policlinico S. Matteo and Fondazione S. Maugeri, Istituto di Riabilitazione di Montescano, Pavia, Italy
| | - M.P. Achilli
- Divisione di Urologia, Policlinico S. Matteo and Fondazione S. Maugeri, Istituto di Riabilitazione di Montescano, Pavia, Italy
| | - S. Ravasi
- Divisione di Urologia, Policlinico S. Matteo and Fondazione S. Maugeri, Istituto di Riabilitazione di Montescano, Pavia, Italy
| | - N. Arrigoni
- Divisione di Urologia, Policlinico S. Matteo and Fondazione S. Maugeri, Istituto di Riabilitazione di Montescano, Pavia, Italy
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Cucchi A, Achilli MP, Ravasi S, Arrigoni N. Detrusor instability as an energy-saving device in prostatic obstruction. J Urol 1997; 157:866-70. [PMID: 9072588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
PURPOSE We assessed whether voiding dynamics differ in patients with infravesical obstruction from benign prostatic hyperplasia between those with detrusor instability and those with stable bladders. MATERIALS AND METHODS A total of 50 such patients with (25) and without (25) detrusor instability was investigated urodynamically by cystometry and pressure-flow study. RESULTS In the unstable group there was greater obstruction (as assessed by the linear passive urethral resistance relation pressure-flow nomogram) but the detrusor expended less energy (p = 0.001) for voiding the unit volume (54.4 +/- 22.8 mJ./ml versus 74.4 +/- 31.8 mJ./ml. in the stable series). Spared energy was converted into more powerful micturition contractions and more efficient voiding, with a mean maximum contraction power and mean fraction of bladder volume voided of 17.9 +/- 4.9 microW./mm.2 and 93 +/- 11%, respectively, in the unstable population versus 12.7 +/- 2.1 microW./mm.2 (p < 0.001) and 79 +/- 13% (p < 0.001) in the stable subjects. CONCLUSIONS Detrusor instability possibly works within physiological limits as an energy-saving device, preventing voiding efficiency in patients with prostate disease from decreasing too much with increasing obstruction.
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Affiliation(s)
- A Cucchi
- Divisione di Urologia, Policlinico S. Matteo, Pavia, Italy
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