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non tuberculous mycobacteria

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https://www.readbyqxmd.com/read/29332650/amplification-of-hsp-65-gene-and-usage-of-restriction-endonuclease-for-identification-of-non-tuberculous-rapid-grower-mycobacterium
#1
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/29332619/clinical-characteristics-of-non-tuberculous-mycobacterial-pulmonary-infections-in-bamako-mali
#2
B Kone, Y S Sarro, M Maiga, M Sanogo, A M Somboro, B Diarra, A C G Togo, N Coulibaly, B P P Dembele, D Goita, B Baya, A Kone, S Diabaté, M A Polis, M Belson, S Dao, S Orsega, C J Achenbach, R L Murphy, S Diallo, S Siddiqui
The global spread of non-tuberculous mycobacteria (NTM) may be due to HIV/AIDS and other environmental factors. The symptoms of NTM and tuberculosis (TB) disease are indistinguishable, but their treatments are different. Lack of research on the epidemiology of NTM infections has led to underestimation of its prevalence within TB endemic countries. This study was designed to determine the prevalence and clinical characteristics of pulmonary NTM in Bamako. A cross-sectional study which include 439 suspected cases of pulmonary TB...
January 15, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29330276/cutaneous-mycobacterium-massiliense-infection-from-tattooing-a-common-yet-under-reported-and-persistent-epidemic-hazard-for-dermatologists
#3
Lymaries Velez, Jennifer Harb, Stephanie Anuszewski, Stanton Wesson
Tattoo popularity continues to rise, with 3 in 10 Americans bearing at least one. Among tattoo complications, non-tuberculous mycobacteria (NTM) has emerged as a global public health concern. NTM infections associated with tattooing of immunocompetent individuals have occurred as sporadic cases and community outbreaks. Water sources are considered the major pathogenic reservoirs. Tattoo-related inoculation has been linked to contamination of ink, either during the manufacturing process or during dilution of black ink using non-sterile water...
January 12, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29325063/epidemiology-and-outcomes-of-hematopoietic-stem-cell-transplant-in-hiv-patients-from-1998-to-2012-a-nationwide-analysis
#4
Kathan Mehta, Annie Im, Farah Rahman, Hong Wang, Peter Veldkamp
Background: Prior studies have shown that outcomes of hematopoietic stem cell transplantation (HSCT) in HIV (+) patients are similar to HIV (-) patients since effective implementation of HAART by 1998; but they are limited by small sample size or non-inclusion of recent data. Methods: We queried National Inpatient Sample, a large inpatient dataset in the US, from 1998 to 2012 for HSCT using ICD9 procedure code 41.0. HIV patients were identified by ICD9 diagnostic code of 042, 043, 044, V08 and 079...
January 6, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29310592/characterization-of-non-tuberculous-mycobacterium-from-humans-and-water-in-an-agropastoral-area-in-zambia
#5
Ngula Monde, Musso Munyeme, Adrian Muwonge, John Bwalya Muma, Sydney Malama
BACKGROUND: The non-tuberculous mycobacteria include those mycobacterium species that are not members of the Mycobacterium tuberculosis complex, the causative agent of pulmonary tuberculosis and Mycobacterium leprae. In Zambia, Non-tuberculous Mycobacteria are gaining recognition as pathogens of public health significance. However, there is scanty information on the isolation and speciation of these organisms for better patient management, consequently reducing the burden of these infections...
January 8, 2018: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29274054/prevalence-and-risk-factors-of-mycobacterial-infections-in-farm-and-trade-cattle-in-southwestern-nigeria
#6
Victor O Akinseye, Muideen D Adebayo, Oghenekaro O Genesis, Olubukola D Adelakun, Simeon I B Cadmus
We evaluated the prevalence of mycobacterial infections (i.e., Mycobacterium bovis and non-tuberculous mycobacteria [NTM]) and their associated risk factors among cattle herds and trade cattle in southwestern Nigeria. Through cross-sectional study design, cattle herds from three locations were screened using the single intradermal comparative cervical tuberculin test based on two diagnostic standards; more than 4 mm (˃ 4 mm) and more than 2 mm (˃ 2 mm) cut-off points. Abattoir study involved screening trade cattle for tuberculous lesions...
December 22, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29250924/non-tuberculous-mycobacteria-isolated-from-lymph-nodes-and-faecal-samples-of-healthy-slaughtered-cattle-and-the-abattoir-environment
#7
G Ghielmetti, U Friedel, S Scherrer, E Sarno, P Landolt, O Dietz, M Hilbe, C Zweifel, R Stephan
Infections caused by non-tuberculous mycobacteria (NTM) are reported as emerging disease in many countries worldwide. The occurrence of NTM in different hosts and their implication as obligate or opportunistic pathogen remain largely unclear. Lymph nodes and faecal samples of clinically healthy Swiss cattle at slaughter were analysed for the presence of NTM. Based on the examined lymph nodes, NTM were detected in 20% of 108 cattle originating from different premises. The 22 isolates belonged to five different species of Mycobacteria (M...
December 17, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29207758/mycobacterium-fortuitum-infection-at-umbilical-hernioplasty-site
#8
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/29174730/how-to-identify-non-tuberculous-mycobacterium-species-by-using-maldi-tof-mass-spectrometry
#9
REVIEW
Fernando Alcaide, J Amlerová, Germán Bou, Pieter-Jan Ceyssens, Pere Coll, Dan Corcoran, Marie-Sarah Fangous, Iván González-Álvarez, Rebecca Gorton, Gilbert Greub, Geneviève Hery-Arnaud, Jaroslav Hrábak, André Ingebretsen, Brigid Lucey, Ivana Marekoviċ, Concepción Mediavilla-Gradolph, James O'Connor, Jim O'Mahony, Onya Opota, Brendan O'Reilly, Dorothea Orth-Höller, Marina Oviaño, Juan José Palacios, Begoña Palop, Arthur Pranada, Lidia Quiroga, David Rodríguez-Temporal, María Jesús Ruiz-Serrano, Griselda Tudó, An van den Bossche, Jakko van Ingen, Belén Rodriguez-Sanchez
BACKGROUND: The implementation of MALDI-TOF MS for microorganism identification has changed the routine of the microbiology laboratories as we knew it. Most microorganisms can now be reliably identified within minutes using this inexpensive, user-friendly methodology. However, its application on the identification of mycobacteria isolates has been hampered by the structure of their cell wall. Improvements in the sample processing method and in the available database have proved key factors for the rapid and reliable identification of non-tuberculous mycobacteria isolates using MALDI-TOF MS AIMS: The main objective is to provide information about the proceedings for the identification of non-tuberculous isolates using MALDI-TOF MS and to review different sample processing methods, available databases and the interpretation of the results...
November 21, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/29134263/diminished-susceptibility-of-african-americans-to-non-tuberculous-mycobacterial-disease
#10
Jerome M Reich, Jong S Kim
The incidence of three granulomatous response diseases-sarcoidosis, tuberculosis, and non-tuberculous mycobacterial pulmonary disease-differ markedly in African-Americans versus Caucasians. In reviewing a large compendium of non-cystic-fibrosis bronchiectasis, we noted that complicating infection with non-tuberculous mycobacteria was relatively infrequent among individuals of African-American descent, confirming previous observations of their inherent resistance. Disease-specific variance among African-Americans in the efficacy of their granulomatous response suggests a nexus, a mediating, immunological mechanism...
November 13, 2017: Lung
https://www.readbyqxmd.com/read/29109708/differential-identification-of-mycobacterial-species-using-high-resolution-melting-analysis
#11
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/29098128/hot-tub-lung-a-diagnostic-challenge
#12
Hassaan Yasin, William E Mangano, Paras Malhotra, Ali Farooq, Hesham Mohamed
Hot tub lung (HTL) is a granulomatous lung disease thought to occur as a result of a hypersensitivity response to non-tuberculous mycobacteria (NTM). Typical radiographic findings are diffuse micronodular and/or ground glass opacities. We report an interesting case of HTL that presented with unique radiographic features, making its diagnosis a predicament. A 56-year-old immunocompetent female with chronic dyspnea and dry cough was found to have subcentimeter cavitary nodules, predominantly in the upper lung zones...
August 27, 2017: Curēus
https://www.readbyqxmd.com/read/29067624/are-guidelines-on-the-management-of-non-tuberculous-mycobacteria-lung-infections-respected-and-what-are-the-consequences-for-patients-a-french-retrospective-study-from-2007-to-2014
#13
N El-Zeenni, S Chanoine, C Recule, J-P Stahl, M Maurin, B Camara
Diagnosis and treatment of lung infections caused by non-tuberculous mycobacteria (NTM) remain challenging. Adherence of the clinicians to the American Thoracic Society (ATS) and the Infectious Diseases Society of America (IDSA) 2007 guidelines is often incomplete. Between 2007 and 2014, in Grenoble Alpes University Hospital, France, 132 patients had NTM-positive cultures from lower respiratory tract (LRT) samples. We retrospectively collected diagnosis, treatment, and outcome data of patients, and evaluated the adherence of clinicians to ATS/IDSA guidelines and the consequences of patients' prognoses...
October 24, 2017: European Journal of Clinical Microbiology & Infectious Diseases
https://www.readbyqxmd.com/read/29045552/non-tuberculous-mycobacteria-infection-following-autologous-fat-grafting-on-the-face
#14
Chih-Hao Chang, Yao-Yu Chang, Pei-Hsuan Lu
HASH(0x2e25678)
October 13, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29030167/turnaround-time-of-whole-genome-sequencing-for-mycobacterial-identification-and-drug-susceptibility-testing-in-routine-practice
#15
Ioana D Olaru, Hemu Patel, Katharina Kranzer, Nelun Perera
OBJECTIVES: Until recently whole genome sequencing (WGS) for mycobacteria has been restricted mostly to the research setting. However, in 2017 Public Health England has implemented WGS for routine mycobacterial identification and susceptibility testing for Mycobacterium tuberculosis. Our objective was to evaluate the impact of this change on the laboratory turnaround times and availability of results. METHODS: Over the years 2016 and 2017, the period January 1(st) to April 30(th) was selected to represent before and after implementation of WGS...
October 10, 2017: Clinical Microbiology and Infection
https://www.readbyqxmd.com/read/28990320/non-tuberculosis-mycobacterium-speciation-using-hplc-under-revised-national-tb-control-programme-rntcp-in-india
#16
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/28971307/non-tuberculous-mycobacterium-bacteraemia-in-a-pregnant-systemic-lupus-erythematosus-sle-patient-a-case-review-and-pooled-case-analysis
#17
REVIEW
Syahrul Sazliyana Shaharir, Narisa Sulaiman Sahari, Zeena Mohamed Fuad, Wan Zul Haikal Wan Zukiman, Nurul Hafizah Mohd Yusof, Anita Sulong, Petrick Periasamy
Non-tuberculous mycobacteria (NTM) are recognized as an important cause of human diseases and infections. It is commonly known to cause infections of the skin, soft tissue infections, and pulmonary infection as well as bacteraemia. We report a challenging case of severe mycobacterium abscessus bacteraemia in a pregnant lady with active systemic lupus erythematous (SLE). A comprehensive literature review of NTM infection among SLE patients was also performed, and pooled analysis of the reported cases, including our case, was done to determine the clinical characteristics and factors associated with poor outcome of NTM infection...
October 3, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28967797/pulmonary-disease-by-non-tuberculous-mycobacteria-clinical-management-unmet-needs-and-future-perspectives
#18
Lars-Olof Larsson, Eva Polverino, Wouter Hoefsloot, Luigi R Codecasa, Roland Diel, Stephen G Jenkins, Michael R Loebinger
The number of patients with pulmonary disease caused by non-tuberculous mycobacteria (NTM) is increasing globally. Poor resistance against infections, for example, due to pre-existing lung diseases, immune deficiency and immune-modulating treatment, predisposes the population to developing pulmonary NTM disease. The incidence of pre-existing lung diseases such as chronic obstructive pulmonary disease and bronchiectasis has also increased. NTM disease diagnosis is often delayed due to non-specific symptoms. The therapeutic arsenal is limited and adherence to treatment guidelines is often low since the treatment regimens are complex, lengthy and side effects are common...
October 10, 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28961864/biological-evaluation-of-diphenyleneiodonium-chloride-dpic-as-a-potential-drug-candidate-for-treatment-of-non-tuberculous-mycobacterial-infections
#19
Alok Kumar Singh, Ritesh Thakare, Pratiksha Karaulia, Swetarka Das, Isha Soni, Manitosh Pandey, Amit Kumar Pandey, Sidharth Chopra, Arunava Dasgupta
Background: Novel drug discovery against non-tuberculous mycobacteria is beset with a large number of challenges including the existence of myriad innate drug resistance mechanisms as well as a lack of suitable animal models, which hinders effective translation. In order to identify molecules acting via novel mechanisms of action, we screened the Library of Pharmacologically Active Compounds against non-tuberculous mycobacteria to identify such compounds. Methods: Whole-cell growth inhibition assays were used to screen and identify novel inhibitors...
November 1, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28957340/body-habitus-in-patients-with-and-without-bronchiectasis-and-non-tuberculous-mycobacteria
#20
Michael D Schweitzer, Oriana Salamo, Michael Campos, Dean E Schraufnagel, Ruxana Sadikot, Mehdi Mirsaeidi
BACKGROUND: Female gender, tall stature, presence of bronchiectasis are associated with pulmonary nontuberculous mycobacterial (NTM) infections. The biologic relationship between the body habitus and NTM infection is not well defined and the body habitus profile of the patients with NTM and concurrent bronchiectasis is completely unknown. METHODS: We conducted a case control study at the Miami VA Healthcare System and the University of Illinois Medical Center on patients with pulmonary NTM infections between 2010 and 2015...
2017: PloS One
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