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Choudhary A, Naughton LM, Dobson ADW, Rai DK. High-performance liquid chromatography/electrospray ionisation mass spectrometric characterisation of metabolites produced by Pseudovibrio sp. W64, a marine sponge derived bacterium isolated from Irish waters. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2018; 32:1737-1745. [PMID: 29971859 DOI: 10.1002/rcm.8226] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 06/22/2018] [Accepted: 06/24/2018] [Indexed: 06/08/2023]
Abstract
RATIONALE In recent years, metabolites produced by Pseudovibrio species have gained scientific attention due to their potent antimicrobial activity. Recently, we also have assessed the antibacterial activities of Pseudovibrio sp. W64 isolates against Staphylococcus aureus, where only the dominant tropodithietic acid (TDA) was identified. However, characterisation of other metabolites is necessary as these metabolites may also serve as potent antimicrobial agents. METHODS Liquid chromatography/tandem mass spectrometry (LC/MS/MS), aided by accurate mass measurements, was employed to screen and characterise a range of metabolites produced by Pseudovibrio sp. W64 via assessment of ethyl acetate fractions generated from bacterial cultures. RESULTS Thirteen metabolites unique to the bacterial culture were detected and their chemical structures were assigned by MS/MS and accurate mass measurements. Among the thirteen metabolites, a methyl ester of TDA, a number of cholic acid derivatives, and amino diols and triols were characterised. CONCLUSIONS Pseudovibrio sp. W64 produces methylated TDA in addition to TDA, and metabolises lipids and amino acids in the cell-culture medium. To the best of our knowledge, this is the first report of methylated TDA, cholic acid and its various analogs, and sphinganine being detected in this Pseudovibrio strain. The data generated may help to better understand the biochemical processes and metabolism of bacterial strains towards discovery of antimicrobial agents from marine sources.
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Affiliation(s)
- Alka Choudhary
- Department of Food Biosciences, Teagasc Food Research Centre Ashtown, Dublin, D15 KN3K, Ireland
| | - Lynn M Naughton
- School of Microbiology, University College Cork, Western Road, Cork, T12 YN60, Ireland
| | - Alan D W Dobson
- School of Microbiology, University College Cork, Western Road, Cork, T12 YN60, Ireland
- Environmental Research Institute, University College Cork, Lee Road, Cork, T23 XE10, Ireland
| | - Dilip K Rai
- Department of Food Biosciences, Teagasc Food Research Centre Ashtown, Dublin, D15 KN3K, Ireland
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Lamas A, Miranda JM, Regal P, Vázquez B, Franco CM, Cepeda A. A comprehensive review of non-enterica subspecies of Salmonella enterica. Microbiol Res 2018; 206:60-73. [DOI: 10.1016/j.micres.2017.09.010] [Citation(s) in RCA: 109] [Impact Index Per Article: 18.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 09/22/2017] [Accepted: 09/26/2017] [Indexed: 12/11/2022]
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Gavrilovici C, Pânzaru CV, Cozma S, Mârţu C, Lupu VV, Ignat A, Miron I, Stârcea M. "Message from a turtle": otitis with Salmonella arizonae in children: Case report. Medicine (Baltimore) 2017; 96:e8455. [PMID: 29095293 PMCID: PMC5682812 DOI: 10.1097/md.0000000000008455] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
RATIONALE Salmonella enterica subsp arizonae is a common gut inhabitant of reptiles (snakes are the most common reservoir, but it also occurs in turtles). Alhough human cases owing to this organism are exceedingly rare, it may occasionally infect young infants and immunocompromised individuals with a history of intimate associations with reptiles. Our case is the 20th one among the infections with S arizonae in children, but the 2nd one of otitis and the first of mastoiditis. The other cases had different anatomical locations, such as gastroenteritis, osteomyelitis, meningitis, ankle infection, wound infection, and sinusitis. PATIENT CONCERNS AND DIAGNOSIS We report a rare case of otitis with Salmonella in a previously healthy adolescent, which was most likely acquired after bathing in a lake. The ear infection was complicated with mastoiditis. Audiometric testing showed a moderately conductive hearing loss (60 dB on pure-tone average). INTERVENTION Standard therapy for S arizonae was initiated. The surgery revealed a "hidden" cholesteatoma. Surgical management comprised of canal wall up mastoidectomy with attico-antrotomy and posterior tympanotomy followed by tympanoplasty. OUTCOMES Daily postoperative dressing care of the incision, along with antibiotic lavage of the external auditory canal packing, ensured a favorable evolution. The functional gain was important; the 1-month postsurgical pure tone audiogram indicated nearly normal hearing (a mean of 25 dB for air conduction thresholds). LESSON Salmonella enterica serotype arizonae is a rare cause of human infection, being a common organism in reptiles, like snakes and turtles. Young children are at a particular risk for acquiring such infections. Our study might encourage further epidemiologic investigations into these infections to generate a more effective strategy among public health agencies.
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Affiliation(s)
- Cristina Gavrilovici
- University of Medicine and Pharmacy “Grigore T. Popa”
- Department of pediatrics, “Sf. Maria” Children's Hospital
| | - Carmen-Valentina Pânzaru
- University of Medicine and Pharmacy “Grigore T. Popa”
- Department of Microbiology, “Sf. Maria” Children's Hospital
| | - Sebastian Cozma
- University of Medicine and Pharmacy “Grigore T. Popa”
- Department of Otorhinolaryngology, Clinical Rehabilitation Hospital, Iasi, România
| | - Cristian Mârţu
- University of Medicine and Pharmacy “Grigore T. Popa”
- Department of Otorhinolaryngology, Clinical Rehabilitation Hospital, Iasi, România
| | - Vasile Valeriu Lupu
- University of Medicine and Pharmacy “Grigore T. Popa”
- Department of pediatrics, “Sf. Maria” Children's Hospital
| | - Ancuta Ignat
- University of Medicine and Pharmacy “Grigore T. Popa”
- Department of Microbiology, “Sf. Maria” Children's Hospital
| | - Ingrith Miron
- University of Medicine and Pharmacy “Grigore T. Popa”
- Department of pediatrics, “Sf. Maria” Children's Hospital
| | - Magdalena Stârcea
- University of Medicine and Pharmacy “Grigore T. Popa”
- Department of pediatrics, “Sf. Maria” Children's Hospital
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More S, Bøtner A, Butterworth A, Calistri P, Depner K, Edwards S, Garin-Bastuji B, Good M, Gortázar Schmidt C, Michel V, Miranda MA, Nielsen SS, Raj M, Sihvonen L, Spoolder H, Stegeman JA, Thulke HH, Velarde A, Willeberg P, Winckler C, Baldinelli F, Broglia A, Beltrán-Beck B, Kohnle L, Bicout D. Assessment of listing and categorisation of animal diseases within the framework of the Animal Health Law (Regulation (EU) No 2016/429): Salmonella infection in poultry with serotypes of animal health relevance ( S. Pullorum, S. Gallinarum and S. arizonae). EFSA J 2017; 15:e04954. [PMID: 32625620 PMCID: PMC7009822 DOI: 10.2903/j.efsa.2017.4954] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Salmonella infection in poultry (Salmonella Pullorum, Salmonella Gallinarum and Salmonella arizonae) has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of Salmonella to be listed, Article 9 for the categorisation of Salmonella according to disease prevention and control rules as in Annex IV and Article 8 on the list of animal species related to Salmonella. The assessment has been performed following a methodology composed of information collection and compilation, expert judgement on each criterion at individual and, if no consensus was reached before, also at collective level. The output is composed of the categorical answer, and for the questions where no consensus was reached, the different supporting views are reported. Details on the methodology used for this assessment are explained in a separate opinion. According to the assessment performed, Salmonella can be considered eligible to be listed for Union intervention as laid down in Article 5(3) of the AHL. The disease would comply with the criteria as in Sections 4 and 5 of Annex IV of the AHL, for the application of the disease prevention and control rules referred to in points (d) and (e) of Article 9(1). The assessment here performed on compliance with the criteria as in Section 1 of Annex IV referred to in point (a) of Article 9(1) is inconclusive. The main animal species to be listed for Salmonella according to Article 8(3) criteria are all species of domestic poultry and wild species of mainly Anseriformes and Galliformes, as indicated in the present opinion.
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Baranzelli A, Loïez C, Bervar JF, Scherpereel A, Wallet F. The snake raiser lung: An unusual cause of Salmonella enterica subspecies arizonae pneumonia. Med Mal Infect 2017; 47:424-425. [PMID: 28602385 DOI: 10.1016/j.medmal.2017.05.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 02/24/2017] [Accepted: 05/09/2017] [Indexed: 10/19/2022]
Affiliation(s)
- A Baranzelli
- Service de pneumologie, CHRU de Lille, université de Lille 2, 59037 Lille cedex, France
| | - C Loïez
- Laboratoire de bactériologie-hygiène, centre de biologie pathologie, boulevard du Pr-Leclercq, 59037 Lille cedex, France
| | - J F Bervar
- Service de pneumologie, CHRU de Lille, université de Lille 2, 59037 Lille cedex, France
| | - A Scherpereel
- Service de pneumologie, CHRU de Lille, université de Lille 2, 59037 Lille cedex, France
| | - F Wallet
- Laboratoire de bactériologie-hygiène, centre de biologie pathologie, boulevard du Pr-Leclercq, 59037 Lille cedex, France.
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Lee YC, Hung MC, Hung SC, Wang HP, Cho HL, Lai MC, Wang JT. Salmonella enterica subspecies arizonae infection of adult patients in Southern Taiwan: a case series in a non-endemic area and literature review. BMC Infect Dis 2016; 16:746. [PMID: 27938338 PMCID: PMC5148916 DOI: 10.1186/s12879-016-2083-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Accepted: 12/01/2016] [Indexed: 12/01/2022] Open
Abstract
Background The majority of Salmonella arizonae human infections have been reported in southwestern United States, where rattlesnake-based products are commonly used to treat illness; however, little is known in non-endemic areas. We reviewed and analyzed the clinical manifestations and treatment outcomes in adult patients with S. arizonae infection at our institution. Method A retrospective study was conducted at a regional teaching hospital in southern Taiwan from July 2007 to June 2014. All adult patients diagnosed with S. arizonae infections and treated for at least three days at Chia-Yi Christian Hospital were included. Patients were followed till discharge. Results A total of 18 patients with S. arizonae infections (median age: 63.5 years) were enrolled for analysis, of whom two thirds were male. The three leading underlying diseases were diabetes mellitus, peptic ulcer disease and malignancy. Ten patients had bacteraemia and the most common infection focus was the lower respiratory tract. Most of the patients (72.2%) received third-generation cephalosporins as definitive therapy. In contrast, ampicillin-based regimens (accounting for 45.2%) were the major treatment modalities in previous reports. The crude in-hospital mortality was 5.6%, which was much lower than what was previously reported (22.7%). Conclusions Though uncommon, there were cases of S. arizonae infections in Taiwan. Patients receiving third-generation cephalosporins treatment had better prognosis compared with those treated with ampicillin-based regimen.
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Affiliation(s)
- Yi-Chien Lee
- Department of Internal Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan
| | - Miao-Chiu Hung
- Department of Pediatrics, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Sheng-Che Hung
- Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hung-Ping Wang
- Department of Internal Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan
| | - Hui-Ling Cho
- Department of Nursing, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan
| | - Mei-Chu Lai
- Department of Laboratory Medicine, Ditmanson Medical Foundation Chia-Yi Christian Hospital, Chia-Yi, Taiwan
| | - Jann-Tay Wang
- Department of Internal Medicine, National Taiwan University Hospital, No. 7 Chung-Shan South Road, Taipei, 10002, Taiwan.
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Validation of a Loop-Mediated Amplification/ISO 6579-Based Method for Analysing Soya Meal for the Presence of Salmonella enterica. FOOD ANAL METHOD 2016. [DOI: 10.1007/s12161-016-0602-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Lowden P, Wallis C, Gee N, Hilton A. Investigating the prevalence of Salmonella in dogs within the Midlands region of the United Kingdom. BMC Vet Res 2015; 11:239. [PMID: 26381479 PMCID: PMC4574458 DOI: 10.1186/s12917-015-0553-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2015] [Accepted: 09/10/2015] [Indexed: 11/20/2022] Open
Abstract
Background The intimate relationship between dogs and their owners has the potential to increase the risk of human exposure to bacterial pathogens. Over the past 40 years, there have been several reports on transmission of salmonellae from dogs to humans. This study therefore aimed to determine the prevalence of Salmonella in the faeces of dogs from the Midlands region of the United Kingdom to assess exposure risk and potential for zoonotic transmission. Results A total of 436 apparently healthy dogs without diarrhoea from households (n = 126), rescue centres (n = 96), boarding kennels (n = 43), retired greyhound kennels (n = 39) and a pet nutrition facility (n = 132) were investigated for Salmonella shedding. Faecal samples were processed by an enrichment culture based method. The faeces from one dog (0.23 %; 95 % confidence limit 0.006 %, 1.27 %) was positive for Salmonella. The species was S. enterica subspecies arizonae. Conclusion This study showed that the prevalence of Salmonella from faeces from apparently healthy dogs from a variety of housing conditions is low; however, Salmonella shedding was still identified.
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Affiliation(s)
- Preena Lowden
- Life and Health Sciences, Aston University, Birmingham, B4 7ET, UK.
| | - Corrin Wallis
- WALTHAM Centre for Pet Nutrition, Waltham-on-the-Wolds, Leicestershire, LE14 4RB, UK.
| | - Nancy Gee
- WALTHAM Centre for Pet Nutrition, Waltham-on-the-Wolds, Leicestershire, LE14 4RB, UK.
| | - Anthony Hilton
- Life and Health Sciences, Aston University, Birmingham, B4 7ET, UK.
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Abstract
Salmonellosis transmitted by pet reptiles is an increasing public health issue worldwide. The aim of this study was to investigate the prevalence of Salmonella strains from captive reptiles in Croatia. From November 2009 to November 2011 a total of 292 skin, pharyngeal, cloacal, and fecal samples from 200 apparently healthy reptiles were tested for Salmonella excretions by bacteriologic culture and serotyping. These 200 individual reptiles included 31 lizards, 79 chelonians, and 90 snakes belonging to private owners or housed at the Zagreb Zoo, Croatia. Salmonella was detected in a total of 13% of the animals, among them 48.4% lizards, 8.9% snakes, and 3.8% turtles. Representatives of five of the six Salmonella enterica subspecies were identified with the following proportions in the total number of isolates: Salmonella enterica enterica 34.6%, Salmonella enterica houtenae 23.1%, Salmonella enterica arizonae 23.1%, Salmonella enterica diarizonae 15.4%, and Salmonella enterica salamae 3.8%. The 14 different serovars isolated included several rarely occurring serovars such as Salmonella Apapa, Salmonella Halle, Salmonella Kisarawe, and Salmonella Potengi. These findings confirm that the prevalence of Salmonella is considerable in captive reptiles in Croatia, indicating that these animals may harbor serovars not commonly seen in veterinary or human microbiologic practice. This should be addressed in the prevention and diagnostics of human reptile-transmitted infections.
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Characterisation of non-autoinducing tropodithietic Acid (TDA) production from marine sponge Pseudovibrio species. Mar Drugs 2014; 12:5960-78. [PMID: 25513851 PMCID: PMC4278212 DOI: 10.3390/md12125960] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 11/05/2014] [Accepted: 11/12/2014] [Indexed: 12/15/2022] Open
Abstract
The search for new antimicrobial compounds has gained added momentum in recent years, paralleled by the exponential rise in resistance to most known classes of current antibiotics. While modifications of existing drugs have brought some limited clinical success, there remains a critical need for new classes of antimicrobial compound to which key clinical pathogens will be naive. This has provided the context and impetus to marine biodiscovery programmes that seek to isolate and characterize new activities from the aquatic ecosystem. One new antibiotic to emerge from these initiatives is the antibacterial compound tropodithietic acid (TDA). The aim of this study was to provide insight into the bioactivity of and the factors governing the production of TDA in marine Pseudovibrio isolates from a collection of marine sponges. The TDA produced by these Pseudovibrio isolates exhibited potent antimicrobial activity against a broad spectrum of clinical pathogens, while TDA tolerance was frequent in non-TDA producing marine isolates. Comparative genomics analysis suggested a high degree of conservation among the tda biosynthetic clusters while expression studies revealed coordinated regulation of TDA synthesis upon transition from log to stationary phase growth, which was not induced by TDA itself or by the presence of the C10-acyl homoserine lactone quorum sensing signal molecule.
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