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https://www.readbyqxmd.com/read/29400108/nontuberculous-mycobacterium-infection-in-renal-transplant-recipients-a-systematic-review
#1
Yan Song, Li Zhang, Hao Yang, Guangjun Liu, Hongfeng Huang, Jianyong Wu, Jianghua Chen
BACKGROUND: Nontuberculous mycobacterium (NTM) infections are important complications in renal transplant recipients. METHODS: Cases of NTM diseases post-renal transplantation published in English were identified in the PubMed database. The clinical and laboratory characteristics of these cases were reviewed. RESULTS: One-hundred and fifteen cases of NTM infection in renal transplant recipients in 100 articles were identified. The median time of NTM infection from renal transplantation was 37 months (range, 3 d to 252 months)...
February 5, 2018: Infectious Diseases
https://www.readbyqxmd.com/read/29369747/survival-of-bacterial-and-parasitic-pathogens-from-zebrafish-danio-rerio-after-cryopreservation-and-thawing
#2
Lauren J Norris, Virginia Watral, Michael L Kent
Cryopreservation is a common method used to preserve the sperm of various animal species, and it is widely used with zebrafish (Danio rerio). As with other animals, there is a possibility of paternal pathogen transmission through sperm. We evaluated the ability of five common and important pathogens of zebrafish to survive cryopreservation as used with zebrafish sperm and freezing without cryopreservant. We evaluated Mycobacterium chelonae, Mycobacterium marinum, and Edwardsiella ictaluri, each originally isolated from zebrafish, eggs of Pseuodocapillaria tomentosa, and spores of Pseudoloma neurophilia...
January 25, 2018: Zebrafish
https://www.readbyqxmd.com/read/29368988/activities-of-dual-combinations-of-antibiotics-against-multidrug-resistant-nontuberculous-mycobacteria-recovered-from-patients-with-cystic-fibrosis
#3
Matthew Schwartz, Stefanie Fisher, Elizabeth Story-Roller, Gyanu Lamichhane, Nicole Parrish
Patients with cystic fibrosis (CF) are at risk for recurrent pulmonary infections due to increased viscosity of airway secretions, leading to persistent colonization with pathogenic bacteria, including nontuberculous mycobacteria (NTM). Extensive antibiotic use for treatment of infections has led to increasing antimicrobial resistance, which is a significant barrier to the treatment of NTMs. We examined the in vitro activity of several antibiotics against a selection of the most drug-resistant clinical isolates of Mycobacterium abscessus, Mycobacterium chelonae, and Mycobacterium avium complex recovered from CF patients at our institution, as well as paired combinations of antibiotics against a subset of M...
January 25, 2018: Microbial Drug Resistance: MDR: Mechanisms, Epidemiology, and Disease
https://www.readbyqxmd.com/read/29359872/mycobacterium-abscessus-infections-in-lung-transplant-recipients-15-year-experience-from-a-single-institution
#4
Morsal Osmani, David Sotello, Salvador Alvarez, John A Odell, Matthew Thomas
PURPOSE: To evaluate our institutional experience with Mycobacterium abscessus infections occurring in lung transplant recipients (LTR). METHODS: We retrospectively reviewed our prospectively collected institutional adult lung transplant database from 2001 to 2015 to identify patients with M. abscessus or Mycobacterium chelonae/abscessus infection before or after transplantation. Untreated, colonized patients were excluded from the study. Electronic health records of 9 out of 516 lung recipients (1...
January 23, 2018: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/29332650/amplification-of-hsp-65-gene-and-usage-of-restriction-endonuclease-for-identification-of-non-tuberculous-rapid-grower-mycobacterium
#5
Ajoy Kumar Verma, Rohit Sarin, Vijay Kumar Arora, Gavish Kumar, Jyoti Arora, Paras Singh, Vithal Prasad Myneedu
BACKGROUND: The rapid grower mycobacteria have emerged as significant group of human pathogen amongst the Runyon group IV organisms that are capable of causing infection in both the healthy and immunocompromised hosts. Study aimed to identification of species amongst rapid grower non tuberculous mycobacterial isolates by polymerase chain reaction - restriction enzyme analysis (PRA). Analysis and comparison of results with standard biochemical tests. METHODS: Rapid grower non tuberculous mycobacteria had been collected from liquid culture section during the study period...
January 2018: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/29318359/response-to-comment-on-mycobacterium-chelonae-infection-of-the-buttocks-secondary-to-lipofilling-a-case-report-and-review-of-the-literature
#6
S E Hammond, J A Jaller, N Joumblat, R S Kirsner, C J Salgado
No abstract text is available yet for this article.
January 9, 2018: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29314762/opportunistic-infections-in-patients-with-idiopathic-inflammatory-myopathies
#7
Ada Redondo-Benito, Adrian Curran, Ana Villar-Gomez, Ernesto Trallero-Araguas, Andreu Fernández-Codina, Iago Pinal-Fernandez, Jose Ángel Rodrigo-Pendás, Albert Selva-O'Callaghan
AIM: To describe the prevalence, clinical characteristics and risk factors of opportunistic infection (OI) in a cohort of patients with inflammatory myopathies, and compare mortality rates between those with and without OIs. METHODS: In total, 204 patients from our myositis cohort were reviewed to identify patients who had experienced an OI during the period 1986-2014. The patients' clinical characteristics, treatments received, and outcomes were systematically recorded...
January 5, 2018: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29286459/environmental-screening-of-aeromonas-hydrophila-mycobacterium-spp-and-pseudocapillaria-tomentosa-in-zebrafish-systems
#8
Jean-Philippe Mocho, Darren J Martin, Mollie E Millington, Yolanda Saavedra Torres
Health monitoring systems are developed and used in zebrafish research facilities because pathogens of Danio rerio such as Aeromonas hydrophila, Mycobacterium spp., and Pseudocapillaria tomentosa have the potential to impair animal welfare and research. The fish are typically analyzed post mortem to detect microbes. The use of sentinels is a suggested way to improve the sensitivity of the surveillance and to reduce the number of animals to sample. The setting of a pre-filtration sentinel tank out of a recirculating system is described...
December 8, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29241819/cyclophostin-and-cyclipostins-analogs-new-promising-molecules-to-treat-mycobacterial-related-diseases
#9
Phuong Chi Nguyen, Abdeldjalil Madani, Pierre Santucci, Benjamin P Martin, Rishi R Paudel, Sandrine Delattre, Jean-Louis Herrmann, Christopher D Spilling, Laurent Kremer, Stéphane Canaan, Jean-François Cavalier
The progression of mycobacterial diseases requires the development of new therapeutics. Here, we evaluated the efficacy and selectivity of a panel of Cyclophostin and Cyclipostins analogs (CyCs) against various bacteria and mycobacteria. The activity of these 26 CyCs was first assayed using the agar plate method. Compounds exhibiting a 50-100% growth inhibition rate were then selected to determine their MIC using the REMA assay. The best drug candidate was further tested against mycobacterial clinical isolates and bacteria responsible for nosocomial infections...
December 11, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29236773/first-insights-into-a-type-ii-toxin-antitoxin-system-from-the-clinical-isolate-mycobacterium-sp-mhsd3-similar-to-epsilon-zeta-systems
#10
Daniel Jaén-Luchoro, Francisco Aliaga-Lozano, Rosa Maria Gomila, Margarita Gomila, Francisco Salvà-Serra, Jorge Lalucat, Antoni Bennasar-Figueras
A putative type II toxin-antitoxin (TA) system was found in the clinical isolate Mycobacterium sp. MHSD3, a strain closely related to Mycobacterium chelonae. Further analyses of the protein sequences of the two genes revealed the presence of domains related to a TA system. BLAST analyses indicated the presence of closely related proteins in the genomes of other recently published M. chelonae strains. The functionality of both elements of the TA system was demonstrated when expressed in Escherichia coli cells, and the predicted structure of the toxin is very similar to those of well-known zeta-toxins, leading to the definition of a type II TA system similar to epsilon/zeta TA systems in strains that are closely related to M...
2017: PloS One
https://www.readbyqxmd.com/read/29234549/bilateral-mycobacterium-chelonae-keratitis-after-phacoemulsification-cataract-surgery
#11
Jaime D Martinez, Guillermo Amescua, Jesus Lozano-Cárdenas, Leejee H Suh
The purpose of this manuscript is to report the case of an 81-year-old patient who presented with bilateral keratitis after phacoemulsification surgery. Cultures came back positive for Mycobacterium chelonae. Despite aggressive topical and systemic antimicrobial treatment, the patient developed a corneal perforation in both eyes, treated with corneal glue in the right eye and corneoscleral patch in the left eye. After two years of follow-up, patient was free of infection in the right eye with visual acuity of 20/200 and the left eye progressed to phthisis bulbi...
2017: Case Reports in Ophthalmological Medicine
https://www.readbyqxmd.com/read/29207758/mycobacterium-fortuitum-infection-at-umbilical-hernioplasty-site
#12
Bharti Chogtu, Daliparty Vasudev Malik, Rahul Magazine, Vishnu Prasad Shenoy
Non Tuberculous Mycobacteria (NTM) are a group of rapidly growing mycobacteria and are generally considered to be of low virulence. Of late, there has been an increase in incidence of infections due to these organisms. Among them, Mycobacterium fortuitum, M. chelonae and M. abscessus are the common species which have been identified. Though they are occasionally implicated in pulmonary infections, NTM are very commonly associated with cutaneous infections, especially surgical site infections. Identification of NTM infection at such sites should be suspected when there is delayed healing of the wound...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29121135/sporotrichoid-pattern-of-mycobacterium-chelonae-abscessus-infection
#13
Jessica L Boulavsky, Holly M Wright, Paul M Rodriguez-Waitkus, Andrew R DiNardo, Laila E Woc-Colburn, Harry Dao
No abstract text is available yet for this article.
September 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/29111994/identification-of-the-infection-source-of-an-outbreak-of-mycobacterium-chelonae-keratitis-after-laser-in-situ-keratomileusis
#14
Heloisa Nascimento, Cristina Viana-Niero, Christiane Lourenço Nogueira, Paulo José Martins Bispo, Fernando Pinto, Camila de Paula Pereira Uzam, Cristianne Kayoko Matsumoto, Antônia Maria Oliveira Machado, Sylvia Cardoso Leão, Ana Luisa Höfling-Lima, Denise de Freitas
PURPOSE: Nontuberculous mycobacteria keratitis is a rare but challenging complication of laser in situ keratomileusis (LASIK). This study was conducted to determine the source(s) of infection in a cluster of cases of keratitis after LASIK and to describe this outbreak and patients' outcomes. METHODS: In this retrospective, case series, single-center study, 86 patients were included who underwent LASIK or photorefractive keratectomy between December 2011 and February 2012...
November 2, 2017: Cornea
https://www.readbyqxmd.com/read/29109708/differential-identification-of-mycobacterial-species-using-high-resolution-melting-analysis
#15
Azar D Khosravi, Mohammad Hashemzadeh, Abdolrazagh Hashemi Shahraki, Ali Teimoori
Infections caused by non-tuberculous mycobacteria (NTM) is increasing wordwide. Due to the difference in treatment of NTM infections and tuberculosis, rapid species identification of mycobacterial clinical isolates is necessary for the effective management of mycobacterial diseases treatment and their control strategy. In this study, a cost-effective technique, real-time PCR coupled with high-resolution melting (HRM) analysis, was developed for the differentiation of Mycobacterial species using a novel rpoBC sequence...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29050776/blood-antimicrobial-activity-varies-against-different-mycobacterium-spp
#16
Octavio Miguel Rivero-Lezcano, Sara Blanco-Conde, Ramiro López-Medrano, Eduardo López-Fidalgo, Manuela Caño-Herrero, Teresa Nebreda-Mayoral
In vitro analysis of mycobacterial pathogenicity or host susceptibility has traditionally relied on the infection of macrophages, the target cell of mycobacteria, despite difficulties reproducing their antimycobacterial activity. We have employed alternative models, namely whole blood and leukocytes in plasma, from QuantiFERON negative individuals, and performed infections with the pathogenic M. tuberculosis, the less pathogenic M. avium, M. kansasii and M. chelonae and the occasionally pathogenic M. gordonae and M...
December 2017: Tuberculosis
https://www.readbyqxmd.com/read/29030295/the-new-phylogeny-of-the-genus-mycobacterium-the-old-and-the-news
#17
Enrico Tortoli, Tarcisio Fedrizzi, Conor J Meehan, Alberto Trovato, Antonella Grottola, Elisabetta Giacobazzi, Giulia Fregni Serpini, Sara Tagliazucchi, Anna Fabio, Clotilde Bettua, Roberto Bertorelli, Francesca Frascaro, Veronica De Sanctis, Monica Pecorari, Olivier Jousson, Nicola Segata, Daniela M Cirillo
BACKGROUND: Phylogenetic studies of bacteria have been based so far either on a single gene (usually the 16S rRNA) or on concatenated housekeeping genes. For what concerns the genus Mycobacterium these approaches support the separation of rapidly and slowly growing species and the clustering of most species in well-defined phylogenetic groups. The advent of high-throughput shotgun sequencing leads us to revise conventional taxonomy of mycobacteria on the light of genomic data. For this purpose we investigated 88 newly sequenced species in addition to 60 retrieved from GenBank and used the Average Nucleotide Identity pairwise scores to reconstruct phylogenetic relationships within this genus...
October 11, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28990320/non-tuberculosis-mycobacterium-speciation-using-hplc-under-revised-national-tb-control-programme-rntcp-in-india
#18
George Sebastian, Sharath Burugina Nagaraja, Telagi Vishwanatha, Mamatha Voderhobli, Narayana Vijayalakshmi, Prahlad Kumar
AIMS: Non-Tuberculous Mycobacteria (NTM) are ubiquitous in nature. The data on prevalence of NTM under the RNTCP is scarce. Many NTM species have clinical significance, and hence their identification and speciation are important. METHODS AND RESULT: It is a cross-sectional study conducted at the five RNTCP accredited culture and drug susceptibility testing (CDST) laboratory. The culture isolates from AFB positive but Immunochromatographic test negative samples were taken for identification and speciation using HPLC...
October 9, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28940325/evaluation-of-the-rt-lamp-and-lamp-methods-for-detection-of-mycobacterium-tuberculosis
#19
Dandan Wu, Jiwen Kang, Baosheng Li, Dianxing Sun
BACKGROUND: The current methods for detecting Mycobacterium tuberculosis (Mtb) are not clinically optimal. Standard culture methods (SCMs) are slow, costly, or unreliable, and loop-mediated isothermal amplification (LAMP) cannot differentiate live Mtb. METHODS: This study compared reverse transcription (RT)-LAMP, LAMP, and an SCM for detecting Mtb. A first experiment tested the sensitivity and specificity of primers for 9 species of Mycobacterium (H37Rv, M. intracellulare, M...
September 22, 2017: Journal of Clinical Laboratory Analysis
https://www.readbyqxmd.com/read/28932687/multifocal-ulceronecrotic-skin-lesions-a-stigmatizing-case
#20
Fanny-Emmanuelle Bernier, Simon Grandjean Lapierre, Arwa El-Housseini, Mélissa Nantel-Battista, Sapha Barkati
Mycobacterium chelonae is a rapidly growing nontuberculous mycobacteria, ubiquitous in the environment and mostly involved in skin, soft tissue and bone infections. An atypical, severe and multifocal dermatological manifestation of Mycobacterium chelonae infection in an immunocompetent patient is described here. The lesions completely resolved using a multidisciplinary approach. This case emphasizes the important aspects of diagnosis, antimicrobial and surgical management.
2017: IDCases
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