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Castro-Morales O, Jiovanni Soria-Herrera R, Cornejo-Estudillo G, Marineth Avila-Trejo A, Valencia-Trujillo D, Guadalupe Zanella-Vargas M, Estela Vazquez-Barrios M, Rangel-Vargas E, Castro-Rosas J, Liliana García-Reyes R, Rivera-Gutiérrez S, Campos-Peña V, Francisco Cerna-Cortés J. Presence of indicator bacteria and occurrence of potentially pathogenic nontuberculous mycobacteria species in packaged ice cubes in central Mexico. J Food Prot 2024:100318. [PMID: 38876364 DOI: 10.1016/j.jfp.2024.100318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 06/06/2024] [Accepted: 06/10/2024] [Indexed: 06/16/2024]
Abstract
This study aimed to determine the bacteriological quality and presence of diarrheagenic Escherichia coli pathotypes (DEP) and nontuberculous mycobacteria (NTM) species in 85 packaged ice samples from 12 different states of central Mexico. Three samples had a pH of 9.8 and therefore fell outside of the acceptable range for pH. All samples were positive for aerobic-mesophilic bacteria, with limits ranging from 1 to 3.47 log CFU/mL. In total, 35, 11 and 3 ice samples were positive for total coliforms (TC), fecal coliforms (FC) and E. coli, respectively. In the samples, the TC concentration ranged from <1.1 to >23 MPN/100 mL and from <1.1 to 23 MPN/100 mL for FC and E. coli. In total, 38 (44.7%) ice samples were outside of Mexico's official guidelines. None of the 12 E. coli strains isolated from the three ice samples belonged to DEP. NTM were recovered from 20 ice samples and included M. neoaurum (n = 7), M. porcinum (n = 2), M. flavescens (n = 2), M. fortuitum (n = 1), M. abscessus (n = 1), M. senegalense (n = 1), M. conceptionense (n = 1) and M. sp. (n = 1). In the remaining four samples, two NTM were isolated simultaneously. Thus, we recommend that producers should evaluate the microbiological quality of purified water used as a raw material as well as that of the final product, the ice should be packed in thick bags to avoid stretching and tearing during transportation or storage to prevent environmental contamination of ice, personnel involved in the production and handling of ice should be trained in relative hygiene matters and how ice-machines should be cleaned and disinfected and the implementation of hazard analysis and critical control points must be applied throughout the chain of production. Finally, regular inspection by the authorities is also of great importance. These recommendations can be applied in different countries with low microbiological quality packaged ice.
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Affiliation(s)
- Oscar Castro-Morales
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, México
| | | | | | - Amanda Marineth Avila-Trejo
- Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaria de la Defensa Nacional, Ciudad de México 11200, México
| | - Daniel Valencia-Trujillo
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, México; Escuela Militar de Medicina, Centro Militar de Ciencias de la Salud, Secretaria de la Defensa Nacional, Ciudad de México 11200, México
| | | | | | - Esmeralda Rangel-Vargas
- Área de Química, Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo Mineral de la Reforma Hidalgo 42184, México
| | - Javier Castro-Rosas
- Área de Química, Instituto de Ciencias Básicas e Ingeniería, Universidad Autónoma del Estado de Hidalgo Mineral de la Reforma Hidalgo 42184, México
| | - Rocío Liliana García-Reyes
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, México
| | - Sandra Rivera-Gutiérrez
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, México
| | - Victoria Campos-Peña
- Laboratorio Experimental de Enfermedades Neurodegenerativas, Instituto Nacional de Neurología y Neurocirugía Manuel Velasco Suarez, Ciudad de México 14269, México
| | - Jorge Francisco Cerna-Cortés
- Departamento de Microbiología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Ciudad de México 11340, México.
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Neves YCD, Reis AJ, Rodrigues MA, Chimara E, da Silva Lourenço MC, Fountain J, Ramis IB, von Groll A, Gerasimova Y, Rohde KH, Almeida da Silva PE. Detection of Mtb and NTM: preclinical validation of a new asymmetric PCR-binary deoxyribozyme sensor assay. Microbiol Spectr 2024; 12:e0350623. [PMID: 38651877 DOI: 10.1128/spectrum.03506-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 03/15/2024] [Indexed: 04/25/2024] Open
Abstract
Tuberculosis (TB) and infectious diseases caused by non-tuberculous mycobacteria (NTM) are global concerns. The development of a rapid and accurate diagnostic method, capable of detecting and identifying different mycobacteria species, is crucial. We propose a molecular approach, the BiDz-TB/NTM, based on the use of binary deoxyribozyme (BiDz) sensors for the detection of Mycobacterium tuberculosis (Mtb) and NTM of clinical interest. A panel of DNA samples was used to evaluate Mtb-BiDz, Mycobacterium abscessus/Mycobacterium chelonae-BiDz, Mycobacterium avium-BiDz, Mycobacterium intracellulare/Mycobacterium chimaera-BiDz, and Mycobacterium kansasii-BiDz sensors in terms of specificity, sensitivity, accuracy, and limit of detection. The BiDz sensors were designed to hybridize specifically with the genetic signatures of the target species. To obtain the BiDz sensor targets, amplification of a fragment containing the hypervariable region 2 of the 16S rRNA was performed, under asymmetric PCR conditions using the reverse primer designed based on linear-after-the-exponential principles. The BiDz-TB/NTM was able to correctly identify 99.6% of the samples, with 100% sensitivity and 0.99 accuracy. The individual values of specificity, sensitivity, and accuracy, obtained for each BiDz sensor, satisfied the recommendations for new diagnostic methods, with sensitivity of 100%, specificity and accuracy ranging from 98% to 100% and from 0.98 to 1.0, respectively. The limit of detection of BiDz sensors ranged from 12 genome copies (Mtb-BiDz) to 2,110 genome copies (Mkan-BiDz). The BiDz-TB/NTM platform would be able to generate results rapidly, allowing the implementation of the appropriate therapeutic regimen and, consequently, the reduction of morbidity and mortality of patients.IMPORTANCEThis article describes the development and evaluation of a new molecular platform for accurate, sensitive, and specific detection and identification of Mycobacterium tuberculosis and other mycobacteria of clinical importance. Based on BiDz sensor technology, this assay prototype is amenable to implementation at the point of care. Our data demonstrate the feasibility of combining the species specificity of BiDz sensors with the sensitivity afforded by asymmetric PCR amplification of target sequences. Preclinical validation of this assay on a large panel of clinical samples supports the further development of this diagnostic tool for the molecular detection of pathogenic mycobacteria.
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Affiliation(s)
- Yasmin Castillos das Neves
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
| | - Ana Julia Reis
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
| | - Marcos Alaniz Rodrigues
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
| | - Erica Chimara
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
- Instituto Adolfo Lutz, São Paulo, Brazil
| | - Maria Cristina da Silva Lourenço
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
- Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Jacques Fountain
- Division of Immunity and Pathogenesis, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, Orlando, USA
| | - Ivy Bastos Ramis
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
| | - Andrea von Groll
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
| | - Yulia Gerasimova
- Department of Chemistry, College of Sciences, University of Central Florida, Orlando, Florida, Orlando, USA
| | - Kyle H Rohde
- Division of Immunity and Pathogenesis, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, Orlando, USA
| | - Pedro Eduardo Almeida da Silva
- Laboratory of Mycobacteria, Núcleo de Pesquisa em Microbiologia Médica, Universidade Federal do Rio Grande, Rio Grande do Sul, Brazil
- Rede Brasileira de Pesquisa em Tuberculose (REDE-TB), Rio Grande, Rio Grande do Sul, Brazil
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Seidel RW, Goddard R, Lang M, Richter A. Nα-Aroyl-N-Aryl-Phenylalanine Amides: A Promising Class of Antimycobacterial Agents Targeting the RNA Polymerase. Chem Biodivers 2024; 21:e202400267. [PMID: 38588490 DOI: 10.1002/cbdv.202400267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 04/05/2024] [Accepted: 04/08/2024] [Indexed: 04/10/2024]
Abstract
Tuberculosis (TB), caused by Mycobacterium tuberculosis, remains the leading cause of death from a bacterium in the world. The global prevalence of clinically relevant infections with opportunistically pathogenic non-tuberculous mycobacteria (NTM) has also been on the rise. Pharmacological treatment of both TB and NTM infections usually requires prolonged regimens of drug combinations, and is often challenging because of developed or inherent resistance to common antibiotic drugs. Medicinal chemistry efforts are thus needed to improve treatment options and therapeutic outcomes. Nα-aroyl-N-aryl-phenylalanine amides (AAPs) have been identified as potent antimycobacterial agents that target the RNA polymerase with a low probability of cross resistance to rifamycins, the clinically most important class of antibiotics known to inhibit the bacterial RNA polymerase. In this review, we describe recent developments in the field of AAPs, including synthesis, structural characterization, in vitro microbiological profiling, structure-activity relationships, physicochemical properties, pharmacokinetics and early cytotoxicity assessment.
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Affiliation(s)
- Rüdiger W Seidel
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle (Saale), Germany
| | - Richard Goddard
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470, Mülheim an der Ruhr, Germany
| | - Markus Lang
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle (Saale), Germany
| | - Adrian Richter
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120, Halle (Saale), Germany
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Hayashi M, Takishima H, Kishino S, Kishi K, Takano K, Sakai S, Kakiuchi Y, Matsukura S. Time to diagnosis of nontuberculous mycobacterial pulmonary disease and longitudinal changes on CT before diagnosis. Heliyon 2024; 10:e30060. [PMID: 38707468 PMCID: PMC11066632 DOI: 10.1016/j.heliyon.2024.e30060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 04/18/2024] [Accepted: 04/18/2024] [Indexed: 05/07/2024] Open
Abstract
Background The healthcare burden of nontuberculous mycobacterial pulmonary disease (NTM-PD) is increasing, but the diagnosis remains challenging and sometimes requires considerable time. This nested case-control study aims to clarify the time to diagnosis of NTM-PD, the factors that affect diagnosis and diagnostic delay, and changes in CT findings before diagnosis. Patients and methods We retrospectively analyzed 187 patients suspected of having NTM-PD based on computed tomography (CT) findings at our institution between January 2019 and September 2020. We investigated the time to diagnosis of NTM-PD for all suspected and diagnosed patients. Multivariate analyses identified the factors affecting diagnosis and diagnostic delay over 6 months. We also evaluated longitudinal changes in CT findings during the observation period using CT scoring system. Results The median times to diagnosis of NTM-PD were 71.8 months in all suspected patients and 3.2 months in only the diagnosed patients. Multivariable analysis showed that severity of the cavity domain of the CT score and anti-glycopeptidolipid (GPL)-core immunoglobulin A (IgA) antibody positivity were significantly associated with establishing the diagnosis. A low CT score in the cavity domain was a risk factor for delayed diagnosis. In patients with delayed diagnosis, the total CT score was less severe than that in the early diagnosis patients at their first visits; however, it had deteriorated prior to the diagnosis. Conclusion The diagnosis of NTM-PD sometimes required several years, and the absence or mild cavitation predicted a diagnostic delay. Of concern, a delay in diagnosis can result in a delay in treatment.
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Affiliation(s)
- Makoto Hayashi
- Department of Respiratory Medicine, Showa University Northern Yokohama Hospital, Japan
| | - Hiroyasu Takishima
- Department of Respiratory Medicine, Showa University Northern Yokohama Hospital, Japan
| | - Soma Kishino
- Department of Respiratory Medicine, Showa University Northern Yokohama Hospital, Japan
| | - Keitaro Kishi
- Department of Respiratory Medicine, Showa University Northern Yokohama Hospital, Japan
| | - Kenji Takano
- Department of Respiratory Medicine, Showa University Northern Yokohama Hospital, Japan
| | - Shogo Sakai
- Department of Respiratory Medicine, Showa University Northern Yokohama Hospital, Japan
| | - Yusuke Kakiuchi
- Department of Respiratory Medicine, Showa University Northern Yokohama Hospital, Japan
| | - Satoshi Matsukura
- Department of Respiratory Medicine, Showa University Northern Yokohama Hospital, Japan
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Lang M, Ganapathy US, Abdelaziz R, Dick T, Richter A. Broad-Spectrum In Vitro Activity of Nα-Aroyl- N-Aryl-Phenylalanine Amides against Non-Tuberculous Mycobacteria and Comparative Analysis of RNA Polymerases. Antibiotics (Basel) 2024; 13:404. [PMID: 38786132 PMCID: PMC11117372 DOI: 10.3390/antibiotics13050404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2024] [Revised: 04/17/2024] [Accepted: 04/23/2024] [Indexed: 05/25/2024] Open
Abstract
This study investigates the in vitro activity of Nα-aroyl-N-aryl-phenylalanine amides (AAPs), previously identified as antimycobacterial RNA polymerase (RNAP) inhibitors, against a panel of 25 non-tuberculous mycobacteria (NTM). The compounds, including the hit compound MMV688845, were selected based on their structural diversity and previously described activity against mycobacteria. Bacterial strains, including the M. abscessus complex, M. avium complex, and other clinically relevant NTM, were cultured and subjected to growth inhibition assays. The results demonstrate significant activity against the most common NTM pathogens from the M. abscessus and M. avium complexes. Variations in activity were observed against other NTM species, with for instance M. ulcerans displaying high susceptibility and M. xenopi and M. simiae resistance to AAPs. Comparative analysis of RNAP β and β' subunits across mycobacterial species revealed strain-specific polymorphisms, providing insights into differential compound susceptibility. While conservation of target structures was observed, differences in compound activity suggested influences beyond drug-target interactions. This study highlights the potential of AAPs as effective antimycobacterial agents and emphasizes the complex interplay between compound structure, bacterial genetics, and in vitro activity.
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Affiliation(s)
- Markus Lang
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Straße. 3, 06120 Halle (Saale), Germany; (M.L.); (R.A.)
- Center for Discovery and Innovation, Hackensack Meridian Health, 111 Ideation Way, Nutley, NJ 07110, USA;
| | - Uday S. Ganapathy
- Center for Discovery and Innovation, Hackensack Meridian Health, 111 Ideation Way, Nutley, NJ 07110, USA;
| | - Rana Abdelaziz
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Straße. 3, 06120 Halle (Saale), Germany; (M.L.); (R.A.)
| | - Thomas Dick
- Center for Discovery and Innovation, Hackensack Meridian Health, 111 Ideation Way, Nutley, NJ 07110, USA;
- Department of Medical Sciences, Hackensack Meridian School of Medicine, 123 Metro Boulevard, Nutley, NJ 07110, USA
- Department of Microbiology and Immunology, Georgetown University, 3900 Reservoir Road, Washington, DC 20007, USA
| | - Adrian Richter
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Straße. 3, 06120 Halle (Saale), Germany; (M.L.); (R.A.)
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Ye F, Luo M, Gu P, Hu X, Yan J, Wen R, Huang J. Soft tissue infection and osteomyelitis caused by Mycobacterium farcinogenes after heart surgery: Case report and literature review of human cases. Diagn Microbiol Infect Dis 2024; 108:116191. [PMID: 38335880 DOI: 10.1016/j.diagmicrobio.2024.116191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 09/25/2023] [Accepted: 01/20/2024] [Indexed: 02/12/2024]
Abstract
Mycobacterium farcinogenes (M. farcinogenes) is rapidly growing mycobacterium, belonging to non-tuberculous mycobacterial (NTM). M. farcinogenes is an exceedingly rare causative agent of human infection. Only seven cases with M. farcinogenes infections in humans were reported. This is a case of soft tissue infection and osteomyelitis caused by M. farcinogenes after heart surgery. Microbial identification was achieved by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS). The clinical outcome was favorable after surgical debridement and 4-month antibiotics treatment. We also provide a comprehensive literature review on this disease.
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Affiliation(s)
- Fei Ye
- Department of Pharmacy, The Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Menglin Luo
- Department of Pharmacy, The Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Peng Gu
- Department of Pharmacy, The Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Xuelian Hu
- Department of Pharmacy, The Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Junyan Yan
- Department of Cardiac Surgery, The Second Affiliated Hospital of Army Medical University, Chongqing, China
| | - Renguo Wen
- Department of Cardiac Surgery, The Second Affiliated Hospital of Army Medical University, Chongqing, China.
| | - Jingbin Huang
- Department of Pharmacy, The Second Affiliated Hospital of Army Medical University, Chongqing, China.
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Chen D, Chen Y, Yang S, Liu K, Wang Z, Zhang T, Wang G, Zhao K, Su X. The additional value of 18F-FDG PET/CT imaging in guiding the treatment strategy of non-tuberculous mycobacterial patients. Respir Res 2024; 25:132. [PMID: 38500137 PMCID: PMC10949717 DOI: 10.1186/s12931-024-02757-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 03/04/2024] [Indexed: 03/20/2024] Open
Abstract
OBJECTIVES Non-tuberculous mycobacteria (NTM) infection is an increasing health problem due to delaying an effective treatment. However, there are few data on 18F-FDG PET/CT for evaluating the status of NTM patients. The aim of this study was to investigate the potential value of 18F-FDG PET/CT in guiding the treatment strategy of NTM patients. METHODS We retrospectively analyzed the cases of 23 NTM patients who underwent 18F-FDG PET/CT. The clinical data, including immune status and severity of NTM pulmonary disease (NTM-PD), were reviewed. The metabolic parameters of 18F-FDG included maximum standardized uptake value (SUVmax), SUVmax of the most FDG-avid lesion (SUVTop), SUVTop/SUVmax of the liver (SURLiver), SUVTop/SUVmax of the blood (SURBlood), metabolic lesion volume (MLV), and total lesion glycolysis (TLG). The optimal cut-off values of these parameters were determined using receiver operating characteristic curves. RESULTS There were 6 patients (26.09%) with localized pulmonary diseases and 17 patients (73.91%) with disseminated diseases. The NTM lesions had high or moderate 18F-FDG uptake (median SUVTop: 8.2 ± 5.7). As for immune status, the median SUVTop in immunocompromised and immunocompetent patients were 5.2 ± 2.5 and 10.0 ± 6.4, respectively, with a significant difference (P = 0.038). As for extent of lesion involvement, SURLiver and SURBlood in localized pulmonary and disseminated diseases were 1.9 ± 1.1 vs. 3.8 ± 1.6, and 2.7 ± 1.8 vs. 5.5 ± 2.6, respectively, with a significant difference (P = 0.016 and 0.026). Moreover, for disease severity, SUVmax of the lung lesion (SUVI-lung) and SUVmax of the marrow (SUVMarrow) in the severe group were 7.7 ± 4.3 and 4.4 ± 2.7, respectively, significantly higher than those in the non-severe group (4.4 ± 2.0 and 2.4 ± 0.8, respectively) (P = 0.027 and 0.036). The ROC curves showed that SUVTop, SURLiver, SURBlood, SUVI-lung, and SUVMarrow had a high sensitivity and specificity for the identification of immune status, lesion extent, and severity of disease in NTM patients. CONCLUSION 18F-FDG PET/CT is a useful tool in the diagnosis, evaluation of disease activity, immune status, and extent of lesion involvement in NTM patients, and can contribute to planning the appropriate treatment for NTM.
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Affiliation(s)
- Donghe Chen
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, 310003, China
| | - Yunbo Chen
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, China
| | - Shuye Yang
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, 310003, China
| | - Kanfeng Liu
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, 310003, China
| | - Zhen Wang
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, 310003, China
| | - Tingting Zhang
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, 310003, China
| | - Guolin Wang
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, 310003, China
| | - Kui Zhao
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, 310003, China.
| | - Xinhui Su
- Department of Nuclear Medicine, The First Affiliated Hospital, Zhejiang University School of Medicine, 79 Qingchun Road, Hangzhou, 310003, China.
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McAllister R, Magee A, Kelly S. Non-vertebral Mycobacterium avium complex osteomyelitis in an immunocompetent patient. BMJ Case Rep 2024; 17:e257670. [PMID: 38490711 PMCID: PMC10946346 DOI: 10.1136/bcr-2023-257670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2024] Open
Abstract
Mycobacterium avium complex (MAC) is a ubiquitous soil pathogen that is an uncommon cause of diseases in immunocompetent patients. In this case, we describe the presentation of an otherwise healthy man in his 50s presenting with months of malaise and severe hip pain, with aspiration initially yielding no bacteria and presumed fastidious infection. He was treated with irrigation and debridement, surgical stabilisation of the femoral neck and conventional broad-spectrum antibiotics with final cultures diagnostic of MAC osteomyelitis. This case serves to demonstrate the importance of clinical suspicion and appropriate workup of this unusual case of MAC hip osteomyelitis in an otherwise immunocompetent patient.
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Affiliation(s)
| | - Anthony Magee
- Orthopaedic Surgery, Tripler Army Medical Center, Honolulu, Hawaii, USA
| | - Sean Kelly
- Tripler Army Medical Center, Honolulu, Hawaii, USA
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Coe J, Puius Y, Jain H, Meyerowitz EA. Cervical lymphadenitis from Mycobacterium avium complex. BMJ Case Rep 2024; 17:e256726. [PMID: 38490710 PMCID: PMC10946343 DOI: 10.1136/bcr-2023-256726] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2024] Open
Abstract
We present an instructive case of cervical lymphadenitis in a young man without a history of HIV infection. The patient developed spontaneous left-sided neck swelling that progressed over 4 months. CT imaging demonstrated a necrotic left-sided neck mass within the cervical lymph node chain. He was initially prescribed azithromycin and rifampin for presumed cat scratch disease with improvement but incomplete resolution of symptoms. Blood cultures ordered 2 months later grew Mycobacterium avium complex (MAC) and the patient had an excellent clinical response to MAC therapy. Here, we review the case, including presentation and management, and describe the implications for the immune status of the host and long-term considerations for treatment.
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Affiliation(s)
- Jared Coe
- Albert Einstein College of Medicine, Bronx, New York, USA
- Montefiore Medical Center, Bronx, New York, USA
| | - Yoram Puius
- Montefiore Medical Center, Bronx, New York, USA
| | - Harsh Jain
- Montefiore Medical Center, Bronx, New York, USA
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Malhotra AM, Arias M, Backx M, Gadsby J, Goodman A, Gourlay Y, Milburn H, Moncayo-Nieto OL, Shimmin D, Dedicoat M, Kunst H. Extrapulmonary nontuberculous mycobacterial infections: a guide for the general physician. Clin Med (Lond) 2024; 24:100016. [PMID: 38350409 PMCID: PMC11024835 DOI: 10.1016/j.clinme.2024.100016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Non-tuberculous mycobacteria (NTM) infections predominantly present as pulmonary disease. Although relatively rare, 20-30 % originate from extrapulmonary sites resulting in a wide range of clinical syndromes. Immunocompromised individuals are particularly susceptible. Clinical manifestations include skin and soft-tissue infections, lymphadenitis, musculoskeletal infections and disseminated disease. Diagnosing extrapulmonary NTM is challenging, and management is complex, often involving multiple radiological and microbiological investigations, long courses of combination antibiotic regimens and may require adjuvant surgical interventions. We highlight both the importance of involving NTM experts at an early stage and the role of a multidisciplinary approach in the diagnosis and management of these infections.
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Affiliation(s)
- Akanksha Mimi Malhotra
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, UK.
| | | | | | - Jessica Gadsby
- University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Anna Goodman
- Guy's and St Thomas' NHS Foundation Trust, London, UK
| | | | | | | | | | | | - Heinke Kunst
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, UK
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Wang XY, Jia QN, Li J. Treatment of non-tuberculosis mycobacteria skin infections. Front Pharmacol 2023; 14:1242156. [PMID: 37731736 PMCID: PMC10508292 DOI: 10.3389/fphar.2023.1242156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 08/25/2023] [Indexed: 09/22/2023] Open
Abstract
Non-tuberculosis mycobacteria (NTM) skin infections have become increasingly prevalent in recent years, presenting a unique challenge in clinical management. This review explored the complexities of NTM infections localized to the superficial tissues and provided valuable insights into the optimal therapeutic strategies. The antibiotic selection should base on NTM species and their susceptibility profiles. It is recommended to adopt a comprehensive approach that considers the unique characteristics of superficial tissues to improve treatment effectiveness and reduce the incidence of adverse reactions, infection recurrence, and treatment failure. Infection control measures, patient education, and close monitoring should complement the treatment strategies to achieve favorable outcomes in managing NTM skin infections. Further efforts are warranted to elucidate factors and mechanisms contributing to treatment resistance and relapse. Future research should focus on exploring novel treatment options, innovative drug development/delivery platforms, and precise methodologies for determining therapeutic duration. Longitudinal studies are also needed to assess the long-term safety profiles of the integrated approaches.
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Affiliation(s)
| | | | - Jun Li
- Department of Dermatology and Venereology, Peking Union Medical College Hospital (Dongdan Campus), Beijing, China
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12
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Hamed KA, Tillotson G. A narrative review of nontuberculous mycobacterial pulmonary disease: microbiology, epidemiology, diagnosis, and management challenges. Expert Rev Respir Med 2023; 17:973-988. [PMID: 37962332 DOI: 10.1080/17476348.2023.2283135] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 11/09/2023] [Indexed: 11/15/2023]
Abstract
INTRODUCTION Nontuberculous mycobacteria (NTM) are a diverse group of mycobacterial species that are ubiquitous in the environment. They are opportunistic pathogens that can cause a range of diseases, especially in individuals with underlying structural lung disease or compromised immune systems. AREAS COVERED This paper provides an in-depth analysis of NTM infections, including microbiology, environmental sources and transmission pathways, risk factors for disease, epidemiology, clinical manifestations and diagnostic approaches, guideline-based treatment recommendations, drugs under development, and management challenges. EXPERT OPINION Future approaches to the management of NTM pulmonary disease will require therapies that are well tolerated, can be taken for a shorter time period and perhaps less frequently, have few drug-drug interactions, and are active against the various strains of pathogens. As the numbers of infections increase, such therapies will be welcomed by clinicians and patients.
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Barboza GCS, Almeida IND, Santos LBD, Augusto CJ, Leal ÉA, Pádua CAMD, Cesar ALA, Kritski AL, Carvalho WDS, Miranda SSD, Figueredo LJDA. Nontuberculous mycobacteria in patients of a specialty hospital. Rev Inst Med Trop Sao Paulo 2023; 65:e42. [PMID: 37403880 DOI: 10.1590/s1678-9946202365042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 05/22/2023] [Indexed: 07/06/2023] Open
Abstract
The incidence and clinical characteristics of NTM diseases in Brazil remain relatively unknown. The present study describes the diagnosis of NTM isolates, the clinical presentation and treatment outcomes. We analyzed NTM isolates in patients of a tertiary hospital in the Southeast region of Brazil, from January 2008 to July 2019. The ATS/IDSA criteria for diagnosis and treatment of these patients was applied. Mycobacterium kansasii were identified in 13/113 (11.5%) patients. In 59/113 (52.2%) patients who met the ATS criteria for disease, 29/59 (49.1%) received treatment, and 22/29 (75.8%) were cured. The major species identified was M. kansasii. The most frequent symptoms among the treated patients were dyspnea and cough, and the proportion of cured patients was high.
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Affiliation(s)
- Grazielle Conceição Sousa Barboza
- Universidade Federal de Minas Gerais, Faculdade de Medicina, Laboratório de Pesquisa em Micobactérias, Belo Horizonte, Minas Gerais, Brazil
| | | | - Lucas Benício Dos Santos
- Universidade Federal de Minas Gerais, Faculdade de Medicina, Laboratório de Pesquisa em Micobactérias, Belo Horizonte, Minas Gerais, Brazil
| | - Claudio José Augusto
- Fundação Ezequiel Dias, Laboratório de Serviço de Doenças Bacterianas e Fúngicas, Belo Horizonte, Minas Gerais, Brazil
| | - Élida Aparecida Leal
- Fundação Ezequiel Dias, Laboratório de Serviço de Doenças Bacterianas e Fúngicas, Belo Horizonte, Minas Gerais, Brazil
| | - Cristiane Aparecida Menezes de Pádua
- Universidade Federal de Minas Gerais, Faculdade de Farmácia, Laboratório de Saúde Pública e Biologia Molecular, Belo Horizonte, Minas Gerais, Brazil
| | - Aina Liz Alves Cesar
- Universidade Federal de Minas Gerais, Faculdade de Medicina, Laboratório de Pesquisa em Micobactérias, Belo Horizonte, Minas Gerais, Brazil
| | - Afrânio Lineu Kritski
- Universidade Federal do Rio de Janeiro, Faculdade de Medicina, Rio de Janeiro, Rio de Janeiro, Brazil
| | - Wânia da Silva Carvalho
- Universidade Federal de Minas Gerais, Faculdade de Farmácia, Laboratório de Saúde Pública e Biologia Molecular, Belo Horizonte, Minas Gerais, Brazil
| | - Silvana Spíndola de Miranda
- Universidade Federal de Minas Gerais, Faculdade de Medicina, Laboratório de Pesquisa em Micobactérias, Belo Horizonte, Minas Gerais, Brazil
| | - Lida Jouca de Assis Figueredo
- Universidade Federal de Minas Gerais, Faculdade de Medicina, Laboratório de Pesquisa em Micobactérias, Belo Horizonte, Minas Gerais, Brazil
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Opperman CJ, Singh S, Davids T, Cox H, Warren R, Goosen W. Identifying non-tuberculosis mycobacteria: Is it time to introduce new molecular assays? S Afr Med J 2023; 113:4-5. [PMID: 37278260 DOI: 10.7196/samj.2022.v113i6.16771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Indexed: 06/07/2023] Open
Affiliation(s)
- C J Opperman
- National Health Laboratory Service, Green Point Laboratory, Cape Town, South Africa; DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, SAMRC Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
| | - S Singh
- National Health Laboratory Service, Green Point Laboratory, Cape Town, South Africa; DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, SAMRC Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
| | - T Davids
- City Health, Community Services and Health, City of Cape Town, South Africa.
| | - H Cox
- Division of Medical Microbiology, Institute of Infectious Disease and Molecular Medicine; and Wellcome Centre for Infectious Disease Research in Africa, University of Cape Town, South Africa.
| | - R Warren
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, SAMRC Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
| | - W Goosen
- DSI-NRF Centre of Excellence for Biomedical Tuberculosis Research, SAMRC Centre for Tuberculosis Research, Division of Molecular Biology and Human Genetics, Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
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15
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Baker AW, Maged A, Haridy S, Stout JE, Seidelman JL, Lewis SS, Anderson DJ. Use of Statistical Process Control Methods for Early Detection of Healthcare Facility-Associated Nontuberculous Mycobacteria Outbreaks: A Single-Center Pilot Study. Clin Infect Dis 2023; 76:1459-1467. [PMID: 36444485 PMCID: PMC10319764 DOI: 10.1093/cid/ciac923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/17/2022] [Accepted: 11/23/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Nontuberculous mycobacteria (NTM) are emerging pathogens increasingly implicated in healthcare facility-associated (HCFA) infections and outbreaks. We analyzed the performance of statistical process control (SPC) methods in detecting HCFA NTM outbreaks. METHODS We retrospectively analyzed 3 NTM outbreaks that occurred from 2013 to 2016 at a tertiary care hospital. The outbreaks consisted of pulmonary Mycobacterium abscessus complex (MABC) acquisition, cardiac surgery-associated extrapulmonary MABC infection, and a bronchoscopy-associated pseudo-outbreak of Mycobacterium avium complex (MAC). We analyzed monthly case rates of unique patients who had positive respiratory cultures for MABC, non-respiratory cultures for MABC, and bronchoalveolar lavage cultures for MAC, respectively. For each outbreak, we used these rates to construct a pilot moving average (MA) SPC chart with a rolling baseline window. We also explored the performance of numerous alternative control charts, including exponentially weighted MA, Shewhart, and cumulative sum charts. RESULTS The pilot MA chart detected each outbreak within 2 months of outbreak onset, preceding actual outbreak detection by an average of 6 months. Over a combined 117 months of pre-outbreak and post-outbreak surveillance, no false-positive SPC signals occurred (specificity, 100%). Prospective use of this chart for NTM surveillance could have prevented an estimated 108 cases of NTM. Six high-performing alternative charts detected all outbreaks during the month of onset, with specificities ranging from 85.7% to 94.9%. CONCLUSIONS SPC methods have potential to substantially improve HCFA NTM surveillance, promoting early outbreak detection and prevention of NTM infections. Additional study is needed to determine the best application of SPC for prospective HCFA NTM surveillance in other settings.
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Affiliation(s)
- Arthur W Baker
- Division of Infectious Diseases, Duke University School of Medicine, Durham, North Carolina, USA
- Duke Center for Antimicrobial Stewardship and Infection Prevention, Durham, North Carolina, USA
| | - Ahmed Maged
- Department of Advanced Design and Systems Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, China
- Department of Mechanical Engineering, Benha University, Benha, Egypt
| | - Salah Haridy
- Department of Industrial Engineering and Engineering Management, College of Engineering, University of Sharjah, Sharjah, United Arab Emirates
- Benha Faculty of Engineering, Benha University, Benha, Egypt
| | - Jason E Stout
- Division of Infectious Diseases, Duke University School of Medicine, Durham, North Carolina, USA
| | - Jessica L Seidelman
- Division of Infectious Diseases, Duke University School of Medicine, Durham, North Carolina, USA
- Duke Center for Antimicrobial Stewardship and Infection Prevention, Durham, North Carolina, USA
| | - Sarah S Lewis
- Division of Infectious Diseases, Duke University School of Medicine, Durham, North Carolina, USA
- Duke Center for Antimicrobial Stewardship and Infection Prevention, Durham, North Carolina, USA
| | - Deverick J Anderson
- Division of Infectious Diseases, Duke University School of Medicine, Durham, North Carolina, USA
- Duke Center for Antimicrobial Stewardship and Infection Prevention, Durham, North Carolina, USA
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16
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Lang M, Ganapathy US, Mann L, Abdelaziz R, Seidel RW, Goddard R, Sequenzia I, Hoenke S, Schulze P, Aragaw WW, Csuk R, Dick T, Richter A. Synthesis and Characterization of Phenylalanine Amides Active against Mycobacterium abscessus and Other Mycobacteria. J Med Chem 2023; 66:5079-5098. [PMID: 37001025 PMCID: PMC10586324 DOI: 10.1021/acs.jmedchem.3c00009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
Abstract
Nα-2-thiophenoyl-d-phenylalanine-2-morpholinoanilide [MMV688845, Pathogen Box; Medicines for Malaria Venture; IUPAC: (2R)-N-(1-((2-morpholinophenyl)amino)-1-oxo-3-phenylpropan-2-yl)thiophene-2-carboxamide)] is a hit compound, which shows activity against Mycobacterium abscessus (MIC90 6.25-12.5 μM) and other mycobacteria. This work describes derivatization of MMV688845 by introducing a thiomorpholine moiety and the preparation of the corresponding sulfones and sulfoxides. The molecular structures of three analogs are confirmed by X-ray crystallography. Conservation of the essential R configuration during synthesis is proven by chiral HPLC for an exemplary compound. All analogs were characterized in a MIC assay against M. abscessus, Mycobacterium intracellulare, Mycobacterium smegmatis, and Mycobacterium tuberculosis. The sulfone derivatives exhibit lower MIC90 values (M. abscessus: 0.78 μM), and the sulfoxides show higher aqueous solubility than the hit compound. The most potent derivatives possess bactericidal activity (99% inactivation of M. abscessus at 12.5 μM), while they are not cytotoxic against mammalian cell lines.
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Affiliation(s)
- Markus Lang
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
| | - Uday S. Ganapathy
- Center for Discovery and Innovation, Hackensack Meridian Health, 111 Ideation Way, 07110 Nutley, New Jersey, USA
| | - Lea Mann
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
| | - Rana Abdelaziz
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
| | - Rüdiger W. Seidel
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
| | - Richard Goddard
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Ilaria Sequenzia
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
| | - Sophie Hoenke
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 2, 06120 Halle (Saale), Germany
| | - Philipp Schulze
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, 45470 Mülheim an der Ruhr, Germany
| | - Wassihun Wedajo Aragaw
- Center for Discovery and Innovation, Hackensack Meridian Health, 111 Ideation Way, 07110 Nutley, New Jersey, USA
| | - René Csuk
- Institut für Chemie, Martin-Luther-Universität Halle-Wittenberg, Kurt-Mothes-Str. 2, 06120 Halle (Saale), Germany
| | - Thomas Dick
- Center for Discovery and Innovation, Hackensack Meridian Health, 111 Ideation Way, 07110 Nutley, New Jersey, USA
- Department of Medical Sciences, Hackensack Meridian School of Medicine, 123 Metro Blvd, 07110 Nutley, New Jersey, USA
- Department of Microbiology and Immunology, Georgetown University, 3900 Reservoir Road, N.W., 20007 Washington DC, USA
| | - Adrian Richter
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Wolfgang-Langenbeck-Str. 4, 06120 Halle (Saale), Germany
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17
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Yue X, Liao Q, He H, Li H, Xie J, Fu Z. Mycobacteriophage Derived Lipoarabinomannan Binding Protein for Recognizing Non-Tuberculosis Mycobacteria. Anal Chem 2023; 95:3754-3760. [PMID: 36758121 DOI: 10.1021/acs.analchem.2c04851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
Non-tuberculosis mycobacteria (NTM) is one family of pathogens usually leading to nosocomial infections. Exploration of high-performance biological recognition agent plays a pivotal role for the development of point-of-care testing device and kit for detecting NTM. Mycobacterium smegmatis (M. smegmatis) is a NTM which has been frequently applied as an alternative model for highly pathogenic mycobacteria. Herein, a recombinant tail protein derived from mycobacteriophage SWU1 infecting M. smegmatis was expressed with Escherichia coli system and noted as GP89. It shows a fist-like structure according to the results of homology modeling and ab initio modeling. It is confirmed as a lipoarabinomannan (LAM) binding protein, which can recognize studied NTM genus since abundant LAM constructed with d-mannan and d-arabinan is distributed over the mycobacterial surface. Meanwhile an enhanced green fluorescent protein (eGFP)-fused GP89 protein was acquired with a fusion expression technique. Then GP89 and eGFP-fused GP89 were applied to establish a sensitive and rapid method for fluorescent detection of M. smegmatis with a broad linear range of 1.0 × 102 to 1.0 × 106 CFU mL-1 and a low detection limit of 69 CFU mL-1. Rapid and reliable testing of antimicrobial susceptibility was achieved by the GP89-based fluorescent method. The present work provides a promising recognition agent for studied NTM and opens an avenue for clinical diagnosis of NTM-induced infections.
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Affiliation(s)
- Xin Yue
- The State Key Lab of Silkworm Geneome Biology, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Qinchen Liao
- The State Key Lab of Silkworm Geneome Biology, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
| | - Hongmei He
- College of Life Sciences, Southwest University, Chongqing 400715, China
| | - Hongtao Li
- College of Life Sciences, Southwest University, Chongqing 400715, China
| | - Jianping Xie
- College of Life Sciences, Southwest University, Chongqing 400715, China
| | - Zhifeng Fu
- The State Key Lab of Silkworm Geneome Biology, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
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Sarhan MS, Wurst C, Tzankov A, Bircher AJ, Wittig H, Briellmann T, Augsburger M, Hotz G, Zink A, Maixner F. A nontuberculous mycobacterium could solve the mystery of the lady from the Franciscan church in Basel, Switzerland. BMC Biol 2023; 21:9. [PMID: 36747166 PMCID: PMC9903526 DOI: 10.1186/s12915-022-01509-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 12/15/2022] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND In 1975, the mummified body of a female has been found in the Franciscan church in Basel, Switzerland. Molecular and genealogic analyses unveiled her identity as Anna Catharina Bischoff (ACB), a member of the upper class of post-reformed Basel, who died at the age of 68 years, in 1787. The reason behind her death is still a mystery, especially that toxicological analyses revealed high levels of mercury, a common treatment against infections at that time, in different body organs. The computed tomography (CT) and histological analysis showed bone lesions in the femurs, the rib cage, and the skull, which refers to a potential syphilis case. RESULTS Although we could not detect any molecular signs of the syphilis-causing pathogen Treponema pallidum subsp. pallidum, we realized high prevalence of a nontuberculous mycobacterium (NTM) species in brain tissue sample. The genome analysis of this NTM displayed richness of virulence genes and toxins, and similarity to other infectious NTM, known to infect immunocompromised patients. In addition, it displayed potential resistance to mercury compounds, which might indicate a selective advantage against the applied treatment. This suggests that ACB might have suffered from an atypical mycobacteriosis during her life, which could explain the mummy's bone lesion and high mercury concentrations. CONCLUSIONS The study of this mummy exemplifies the importance of employing differential diagnostic approaches in paleopathological analysis, by combining classical anthropological, radiological, histological, and toxicological observations with molecular analysis. It represents a proof-of-concept for the discovery of not-yet-described ancient pathogens in well-preserved specimens, using de novo metagenomic assembly.
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Affiliation(s)
- Mohamed S Sarhan
- Eurac Research - Institute for Mummy Studies, 39100, Bolzano, Italy.
| | - Christina Wurst
- Eurac Research - Institute for Mummy Studies, 39100, Bolzano, Italy
| | - Alexandar Tzankov
- Institute of Medical Genetics and Pathology, University Hospital Basel, University of Basel, 4031, Basel, Switzerland
| | - Andreas J Bircher
- Department of Allergology, University Hospital Basel, 4031, Basel, Switzerland
- Faculty of Biomedical Sciences, Università della Svizzera italiana, Lugano, Switzerland
| | - Holger Wittig
- Department of Biomedical Engineering, Institute of Forensic Medicine, University of Basel, 4056, Basel, Switzerland
| | - Thomas Briellmann
- Citizen Science Basel; formerly Institute of Forensic Medicine, Forensic Chemistry and Toxicology, University of Basel, 4056, Basel, Switzerland
| | - Marc Augsburger
- University Center of Legal Medicine, Lausanne, Geneva, Switzerland
| | - Gerhard Hotz
- Natural History Museum Basel, 4051, Basel, Switzerland
- Integrative Prehistory and Archaeological Science, University of Basel, 4056, Basel, Switzerland
| | - Albert Zink
- Eurac Research - Institute for Mummy Studies, 39100, Bolzano, Italy
| | - Frank Maixner
- Eurac Research - Institute for Mummy Studies, 39100, Bolzano, Italy.
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Zhang R, Luo S, Wang N, Zhang H, Wu X. Epidemiology of Nontuberculous Mycobacteria in Nanjing and MAB_0540 Mutations Associated with Clofazimine Resistance in Mycobacterium abscessus. Infect Drug Resist 2023; 16:2751-2764. [PMID: 37180636 PMCID: PMC10171220 DOI: 10.2147/idr.s408986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Accepted: 04/29/2023] [Indexed: 05/16/2023] Open
Abstract
Background Nontuberculous mycobacteria (NTM) are easily misdiagnosed as multidrug-resistant tuberculosis (MDR-TB), and treatment drugs are very limited. The main objective of our study was to evaluate the minimal inhibitory concentration (MIC) in vitro of bedaquiline (BDQ), clofazimine (CFZ), linezolid (LZD), delamanid (DLM), and pretomanid (PA-824) for treatment of M. abscessus and M. intracellulare. Furthermore, we determined whether MAB_1448, MAB_4384, MAB_2299c, MAB_1483, MAB_0540, rplD, rplC, and rrl were related to drug resistance to provide an experimental basis for the use of these five drugs in the treatment of NTM. Methods We identified sample characteristics of epidemics in 550 patients with suspected NTM infection in Nanjing from 2019 to 2021 using the PCR-reverse spot hybrid method. Furthermore, we evaluated the MIC of BDQ, CFZ, DLM, LZD, and PA-824 against 155 clinical isolates of NTM using the microbroth dilution method. The resistant isolates were sequenced using Sanger sequencing. Results The top three dominant species of NTM distributed in Nanjing were M. intracellulare, M. avium, and M. abscessus. Notably, the proportion of M. abscessus infections increased. The proportion of M. abscessus increased from 12% in 2019 to 18% in 2021. Demographic analysis showed that female infection rates were substantialy greater than male for M. abscessus (P=0.017, <0.05). Our results demonstrate that NTM are highly sensitive to bedaquiline and clofazimine in vitro. However, delamanid and pretomanid had little effect on M. abscessus and M. intracellulare. In addition, we found 30-41 nucleotide deletion mutations and some novel point mutations in the MAB_0540 gene of M. abscessus that are resistant to clofazimine. Conclusion Bedaquiline, clofazimine, and linezolid were more successful in vitro treatments against M. abscessus and M. intracellulare. The MAB_0540 mutation may be associated with resistance of M. abscessus to clofazimine.
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Affiliation(s)
- Ruixian Zhang
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210003, People’s Republic of China
| | - Sha Luo
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210003, People’s Republic of China
| | - Nan Wang
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210003, People’s Republic of China
| | - Hongying Zhang
- Nanjing Center for Disease Control and Prevention Affiliated to Nanjing Medical University, Nanjing, Jiangsu, 210008, People’s Republic of China
- Hongying Zhang, Email
| | - Xuping Wu
- The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210003, People’s Republic of China
- Correspondence: Xuping Wu, The Second Hospital of Nanjing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210003, People’s Republic of China, Email
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20
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Mann L, Ganapathy US, Abdelaziz R, Lang M, Zimmerman MD, Dartois V, Dick T, Richter A. In Vitro Profiling of the Synthetic RNA Polymerase Inhibitor MMV688845 against Mycobacterium abscessus. Microbiol Spectr 2022; 10:e0276022. [PMID: 36377951 PMCID: PMC9769904 DOI: 10.1128/spectrum.02760-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 10/20/2022] [Indexed: 11/16/2022] Open
Abstract
In a library screen of tuberculosis-active compounds for anti-Mycobacterium abscessus activity, we previously identified the synthetic phenylalanine amide MMV688845. In Mycobacterium tuberculosis, this class was shown to target the RpoB subunit of RNA polymerase, engaging a binding site distinct from that of the rifamycins. Due to its bactericidal activity, rifampicin is a key drug for the treatment of tuberculosis (TB). However, this natural product shows poor potency against M. abscessus due to enzymatic modification, and its clinical use is limited. Here, we carried out in vitro microbiological profiling of MMV688845 to determine its attractiveness as a substrate for a chemistry optimization project. MMV688845 was broadly active against the M. abscessus complex, displayed bactericidal against M. abscessus in vitro, and in a macrophage infection model showed additivity with commonly used anti-M. abscessus antibiotics and synergy with macrolides. Analyses of spontaneous resistant mutants mapped resistance to RpoB, confirming that MMV688845 has retained its target in M. abscessus. Together with its chemical tractability, the presented microbiological profiling reveals MMV688845 as an attractive starting point for hit-to-lead development to improve potency and to identify a lead compound with demonstrated oral in vivo efficacy. IMPORTANCE Infections with nontuberculous mycobacteria are an increasing health problem, and only a few new drug classes show activity against these multidrug-resistant bacteria. Due to insufficient therapy options, the development of new drug leads is necessary and should be advanced. The lead compound MMV688845, a substance active against M. abscessus complex, was characterized in depth. In various assays, it showed activity against M. abscessus, synergy with other antibiotics, and bactericidal effects.
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Affiliation(s)
- Lea Mann
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), Germany
| | - Uday S. Ganapathy
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, New Jersey, USA
| | - Rana Abdelaziz
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), Germany
| | - Markus Lang
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), Germany
| | - Matthew D. Zimmerman
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, New Jersey, USA
| | - Véronique Dartois
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, New Jersey, USA
- Department of Medical Sciences, Hackensack Meridian School of Medicine, Nutley, New Jersey, USA
| | - Thomas Dick
- Center for Discovery and Innovation, Hackensack Meridian Health, Nutley, New Jersey, USA
- Department of Medical Sciences, Hackensack Meridian School of Medicine, Nutley, New Jersey, USA
- Department of Microbiology and Immunology, Georgetown University, Washington, DC, USA
| | - Adrian Richter
- Institut für Pharmazie, Martin-Luther-Universität Halle-Wittenberg, Halle (Saale), Germany
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Jarchow-MacDonald A, Smith M, Seagar AL, Russell CD, Claxton P, Laurenson IF, Moncayo-Nieto OL. Changing Incidence and Characteristics of Nontuberculous Mycobacterial Infections in Scotland and Comparison With Mycobacterium tuberculosis Complex Incidence (2011 to 2019). Open Forum Infect Dis 2022; 10:ofac665. [PMID: 36726549 PMCID: PMC9879710 DOI: 10.1093/ofid/ofac665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022] Open
Abstract
Background An increase in infections with nontuberculous mycobacteria (NTM) has been noted globally, and their incidence has overtaken that of Mycobacterium tuberculosis complex (MTBc) in many countries. Using data from a national reference laboratory, we aimed to determine if this trend could be observed in Scotland. Methods We undertook a retrospective review of all NTM isolates received by the Scottish Mycobacteria Reference Laboratory (SMRL) over 9 years from 2011 to 2019 inclusive. Clinical episodes were defined as per 2017 British Thoracic Society and 2020 American Thoracic Society/European Respiratory Society/European Society of Clinical Microbiology and Infectious Diseases/Infectious Diseases Society of America NTM guidelines. These rates were compared with Scottish tuberculosis rates over the same period. Results Of 8552 NTM isolates from 4586 patients in 2011 to 2019, 7739 (90.5%) were considered clinically relevant. These represented 2409 episodes of NTM infection, with M. avium, M. intracellulare, and M. abscessus complex being most common. A total of 1953 (81.1%) were pulmonary NTM infection episodes from 1470 patients and 456 extrapulmonary episodes from 370 patients. We estimated a rise in incidence from 3.4 to 6.5 per 100 000 person-years (2011-2019 inclusive), with an increase in NTM incidence over MTBc incidence in Scotland by 2017. Conclusions The incidence of NTM infection in Scotland has overtaken MTBc incidence. NTM infection leads to a costly health care burden, possibly as much as UK£1.47 million (US$ and €1.73 million) annually. We recommend standardization of isolate referral with clinical surveillance and implementation of agreed standards of care delivered through multidisciplinary teams. This would improve diagnosis and patient management as well as assessment of diagnostics and novel treatments through clinical trials.
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Affiliation(s)
- Anna Jarchow-MacDonald
- Correspondence: Anna A. Jarchow-MacDonald, MD, MSc, DTMH, Scottish Mycobacteria Reference Laboratory, NHS Lothian Directorate of Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh EH16 4SA, UK (). Dr. Olga-Lucia Moncayo-Nieto, MD, FRCPath, PhD, Scottish Mycobacteria Reference Laboratory, NHS Lothian Directorate of Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh EH16 4SA, UK ()
| | - Michael Smith
- Scottish Mycobacteria Reference Laboratory, NHS Lothian Directorate of Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom
| | - Amie-Louise Seagar
- Scottish Mycobacteria Reference Laboratory, NHS Lothian Directorate of Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom
| | - Clark D Russell
- Queen's Medical Research Institute, University of Edinburgh Centre for Inflammation Research, Edinburgh, United Kingdom
| | - Pauline Claxton
- Scottish Mycobacteria Reference Laboratory, NHS Lothian Directorate of Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom
| | - Ian F Laurenson
- Scottish Mycobacteria Reference Laboratory, NHS Lothian Directorate of Laboratory Medicine, Royal Infirmary of Edinburgh, Edinburgh, United Kingdom
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22
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Saptawati L, Primaningtyas W, Dirgahayu P, Sutanto YS, Wasita B, Suryawati B, Nuryastuti T, Probandari A. Characteristics of clinical isolates of nontuberculous mycobacteria in Java-Indonesia: A multicenter study. PLoS Negl Trop Dis 2022; 16:e0011007. [PMID: 36574422 PMCID: PMC9829163 DOI: 10.1371/journal.pntd.0011007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 01/09/2023] [Accepted: 12/07/2022] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND Nontuberculous mycobacterial (NTM) lung infections are a major public health concern. Diagnosis of NTM-pulmonary disease (NTM-PD) is difficult because its clinical, microbiological, and radiological features resemble to those of pulmonary tuberculosis (TB), leading to misdiagnosis. Identification at the species level is essential for diagnosis and determination of therapy, which is currently not performed routinely in Indonesian laboratories. METHODOLOGY AND PRINCIPAL FINDINGS From January 2020 to May 2021, 94 NTM isolates were collected from three TB referral centers in Java Province. Species were identified using matrix-assisted laser desorption-ionization time-of-flight mass spectrometry (MALDI-TOF MS). Tests were performed to determine antibiotic susceptibility, biofilm formation ability, sliding motility characteristics, and the ability to adhere to and invade pneumocytes. After identifying the species of all the isolates, we found nine groups of NTMs: M. fortuitum group 51% (48/94), M. abscessus 38.3% (36/94), M. intracellulare 3.1% (3/94), M. neoaurum 2.1% (2/94), M. chelonae 1.1% (1/94), M. gordonae 1.1% (1/94), M. szulgai 1.1% (1/94), M. mucogenicum 1.1% (1/94), and M. arupense 1.1% (1/94). Amikacin was the most effective antibiotic against M. fortuitum group and M. abscessus. The M. fortuitum group was significantly better at forming biofilms than M. abscessus, but both had the same sliding motility capability. The ability of the M. fortuitum group to adhere to and invade pneumocytes was better than that of M. abscessus, with the number isolates of the M. fortuitum group capable of superior adhesion and invasion to that of M. abscessus. CONCLUSIONS/SIGNIFICANCE This study shows that M. fortuitum group and M. abscessus were the most common NTM found in Java, Indonesia. The M. fortuitum group and M. abscessus were the most susceptible to amikacin; therefore, this was the empirical treatment of choice. The ability to form biofilms is directly proportional to the ability to adhere to and invade pneumocytes but not to the susceptibility profile or sliding motility characteristics.
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Affiliation(s)
- Leli Saptawati
- Department of Microbiology, Faculty of Medicine, Universitas Sebelas Maret, Surakarta, Indonesia
- Doctoral Program in Medicine, Faculty of Medicine, Universitas Sebelas Maret, Surakarta, Indonesia
- Department of Microbiology, Moewardi Teaching Hospital, Surakarta, Indonesia
| | | | - Paramasari Dirgahayu
- Department of Parasitology and Micology, Faculty of Medicine, Universitas Sebelas Maret, Surakarta,Indonesia
| | - Yusup Subagio Sutanto
- Faculty of Medicine, Universitas Sebelas Maret, Surakarta, Indonesia
- Department of Pulmonology, Moewardi Teaching Hospital, Surakarta, Indonesia
| | - Brian Wasita
- Department of Anatomical Pathology, Faculty of Medicine, Universitas Sebelas Maret, Surakarta, Indonesia
| | - Betty Suryawati
- Department of Microbiology, Faculty of Medicine, Universitas Sebelas Maret, Surakarta, Indonesia
| | - Titik Nuryastuti
- Department of Microbiology, Faculty of Medicine, Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta, Indonesia
- Indonesia Biofilm Research Collaboration Center, Universitas Gadjah Mada—BRIN, Yogyakarta, Indonesia
| | - Ari Probandari
- Department of Public Health, Faculty of Medicine, Universitas Sebelas Maret, Surakarta, Indonesia
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23
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Liu Y, Ma X, Chen J, Wang H, Yu Z. Nontuberculous mycobacteria by metagenomic next-generation sequencing: Three cases reports and literature review. Front Public Health 2022; 10:972280. [PMID: 36452947 PMCID: PMC9702513 DOI: 10.3389/fpubh.2022.972280] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 10/18/2022] [Indexed: 11/16/2022] Open
Abstract
Background The increasing worldwide incidence of nontuberculous mycobacterial lung disease (NTM-LD) and the similarity of its manifestations to those of tuberculosis (TB) pose huge challenges in the diagnosis and treatment of NTM-LD, which is commonly misdiagnosed and mistreated as TB. Proper diagnosis and treatment at an early stage can greatly improve patient outcomes. Case presentation Mycobacterium avium was identified by mNGS in lung tissue of case 1 and bronchioalveolar fluid from case 2 that was not identified using conventional microbiological methods. Multiple NTM species were detected in the blood mNGS samples from case 3 who had disseminated NTM infection. Although NTM was isolated from blood culture, conventional methods failed to identify the organisms to the level of species. All three patients were suffering from and being treated for myelodysplastic syndrome, rheumatoid arthritis, systemic lupus erythematosus, or acute lymphoblastic leukemia, making them immunosuppressed and susceptible to NTM infections. Case 1 and Case 2 significantly improved after anti-NTM treatment, but case 3 succumbed to the infection due to her underlying medical illness despite aggressive treatment. Conclusions The cases in this study demonstrate the effectiveness of mNGS in facilitating and improving the clinical diagnosis of NTM infections. We propose combining mNGS with traditional diagnostic methods to identify pathogens at the early stages of the disease so that targeted treatment can be implemented.
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Affiliation(s)
- Ying Liu
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xiaoxu Ma
- Department of Respiratory Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiajun Chen
- School of Public Health, Zhengzhou University, Zhengzhou, China
| | - Huifen Wang
- Department of Infectious Diseases, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zujiang Yu
- Gene Hospital of Henan Province, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China,*Correspondence: Zujiang Yu
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Ledesma Y, Echeverría G, Claro-Almea FE, Silva D, Guerrero-Freire S, Rojas Y, Bastidas-Caldes C, Navarro JC, de Waard JH. The Re-Identification of Previously Unidentifiable Clinical Non-Tuberculous Mycobacterial Isolates Shows Great Species Diversity and the Presence of Other Acid-Fast Genera. Pathogens 2022; 11:pathogens11101159. [PMID: 36297216 PMCID: PMC9610484 DOI: 10.3390/pathogens11101159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/25/2022] [Accepted: 09/26/2022] [Indexed: 01/24/2023] Open
Abstract
Non-tuberculous mycobacteria that cannot be identified at the species level represent a challenge for clinical laboratories, as proper species assignment is key to implementing successful treatments or epidemiological studies. We re-identified forty-eight isolates of Ziehl-Neelsen (ZN)-staining-positive "acid-fast bacilli" (AFB), which were isolated in a clinical laboratory and previously identified as Mycobacterium species but were unidentifiable at the species level with the hsp65 PCR restriction fragment length polymorphism analysis (PRA). As most isolates also could not be identified confidently via 16S, hsp65, or rpoB DNA sequencing and a nBLAST search analysis, we employed a phylogenetic method for their identification using the sequences of the 16S rDNA, which resulted in the identification of most AFB and a Mycobacterium species diversity not found before in our laboratory. Most were rare species with only a few clinical reports. Moreover, although selected with the ZN staining as AFB, not all isolates belonged to the genus Mycobacterium, and we report for the first time in Latin America the isolation of Nocardia puris, Tsukamurella pulmosis, and Gordonia sputi from sputum samples of symptomatic patients. We conclude that ZN staining does not differentiate between the genus Mycobacterium and other genera of AFB. Moreover, there is a need for a simple and more accurate tree-based identification method for mycobacterial species. For this purpose, and in development in our lab, is a web-based identification system using a phylogenetic analysis (including all AFB genera) based on 16S rDNA sequences (and in the future multigene datasets) and the closest relatives.
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Affiliation(s)
- Yanua Ledesma
- Laboratorios de Investigación, Facultad de Ciencias de Salud, Universidad de Las Américas (UDLA), Quito 170125, Ecuador
| | - Gustavo Echeverría
- Instituto de Investigación en Salud Pública y Zoonosis-CIZ, Universidad Central del Ecuador, Quito 170521, Ecuador
- Programa de Doctorado, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina
| | - Franklin E. Claro-Almea
- Servicio Autónomo Instituto de Biomedicina Dr. Jacinto Convit, Universidad Central de Venezuela, Caracas 1010, Venezuela
| | - Douglas Silva
- Servicio Autónomo Instituto de Biomedicina Dr. Jacinto Convit, Universidad Central de Venezuela, Caracas 1010, Venezuela
| | - Salomé Guerrero-Freire
- Laboratorios de Investigación, Facultad de Ciencias de Salud, Universidad de Las Américas (UDLA), Quito 170125, Ecuador
- Programa de Doctorado, Facultad de Ciencias Veterinarias, Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina
| | - Yeimy Rojas
- Grupo de Microbiología Aplicada, Universidad Regional Amazónica Ikiam, Tena 150102, Ecuador
| | - Carlos Bastidas-Caldes
- One Health Research Group, Facultad de Ingeniería y Ciencias Aplicadas, Biotecnología, Universidad de las Américas, Quito 170125, Ecuador
- Programa de Doctorado en Salud Pública y Animal, Facultad de Veterinaria, Universidad de Extremadura, Cáceres 10003, España
| | - Juan Carlos Navarro
- Grupo de Enfermedades Emergentes, Ecoepidemiologia y Biodiversidad, Facultad de Ciencias de la Salud, Universidad Internacional SEK, Quito 170107, Ecuador
| | - Jacobus H. de Waard
- Laboratorios de Investigación, Facultad de Ciencias de Salud, Universidad de Las Américas (UDLA), Quito 170125, Ecuador
- Instituto de Investigación en Salud Pública y Zoonosis-CIZ, Universidad Central del Ecuador, Quito 170521, Ecuador
- Servicio Autónomo Instituto de Biomedicina Dr. Jacinto Convit, Universidad Central de Venezuela, Caracas 1010, Venezuela
- Correspondence:
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25
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Khosravi AD, Hashemzadeh M, Rokhfirooz P. Molecular identification of nontuberculous mycobacteria using the rpoB, argH and cya genes analysis. AMB Express 2022; 12:121. [PMID: 36121509 PMCID: PMC9483868 DOI: 10.1186/s13568-022-01463-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2022] [Accepted: 09/10/2022] [Indexed: 11/10/2022] Open
Abstract
Nontuberculous mycobacterial (NTM) infections are growing worldwide especially in immunocompromised individuals. Since treatment of NTM infections is species-specific, the precise identification of NTM to species level is critical for an optimal treatment. This study was aimed to identify different NTM species by sequencing the rpoB gene and evaluating the effectiveness of argH and cya gene markers. In total 64 clinical isolates suspected to NTM were collected. The identification of the isolates was done by standard conventional methods and PCR-based rpoB gene and sequence analysis. PCR sequencing of argH and cya genes was performed to evaluate the efficacy of these genes in identifying and differentiating different species and subspecies of NTM. Among 64 isolates tested, 51 (79.68%) were detected by conventional tests as NTM. The results of rpoB sequence analysis revealed that the 56 clinical isolates were identified in 10 species of NTM and 8 remaining isolates which showed ambiguous results by rpoB sequencing, application of argH and cya sequencing could detect these isolates. Furthermore, by using cya gene sequencing, M. abscessus subspecies were properly differentiated. Although the rpoB sequencing as a standard method, is beneficial for detecting various species of NTM, however, based on our findings, argH and cya gene markers have a superb ability to discriminate closely related species. Further investigations are required to verify our outcomes.
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Affiliation(s)
- Azar Dokht Khosravi
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Iranian Group On Microbial Drug Resistance, Tehran, Iran
| | - Mohammad Hashemzadeh
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.,Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Parisa Rokhfirooz
- Infectious and Tropical Diseases Research Center, Health Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. .,Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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26
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Groenewold MR, Flinchum A, Pillai A, Konkle S, Moulton-Meissner H, Tosh PK, Thoroughman DA. Investigation of a cluster of rapidly growing mycobacteria infections associated with joint replacement surgery in a Kentucky hospital, 2013-2014 with 8-year follow-up. Am J Infect Control 2022; 51:454-460. [PMID: 35732255 PMCID: PMC9896514 DOI: 10.1016/j.ajic.2022.06.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 02/08/2023]
Abstract
BACKGROUND We describe the investigation of a nosocomial outbreak of rapidly growing mycobacteria (RGM) infections and the results of mitigation efforts after 8 years. METHODS A cluster of RGM cases in a Kentucky hospital in 2013 prompted an investigation into RGM surgical site infections following joint replacement surgery. A case-control study was conducted to identify risk factors. RESULTS Eight cases were identified, 5 caused by M. wolinskyi and 3 by M. goodii. The case-control study showed the presence of a particular nurse in the operating room was significantly associated with infection. Environmental sampling at the nurse's home identified an outdoor hot tub as the likely source of M. wolinskyi, confirmed by pulsed-field gel electrophoresis and whole genome sequencing. The hot tub reservoir was eliminated, and hospital policies were revised to correct infection control lapses. No new cases of RGM infections have been identified as of 2021. DISCUSSION Breaches in infection control practices at multiple levels may have led to a chain of infection from a nurse's hot tub to surgical sites via indirect person-to-person transmission from a colonized health care worker (HCW). CONCLUSIONS The multifactorial nature of the outbreak's cause highlights the importance of overlapping or redundant layers of protection preventing patient harm. Future investigations of RGM outbreaks should consider the potential role of colonized HCWs as a transmission vector.
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Affiliation(s)
- Matthew R. Groenewold
- Career Epidemiology Field Officer Program, Centers for Disease Control and Prevention, Frankfort, KY, USA,Division of Epidemiology and Health Planning, Kentucky Department for Public Health, Frankfort, KY, USA,Address correspondence to Matthew R. Groenewold, PhD, MSPH, Centers for Disease Control and Prevention, NIOSH, 1090 Tusculum Ave. MS R-17, Cincinnati, OH 45226.
| | - Andrea Flinchum
- Division of Epidemiology and Health Planning, Kentucky Department for Public Health, Frankfort, KY, USA
| | - Aravind Pillai
- Division of Epidemiology and Health Planning, Kentucky Department for Public Health, Frankfort, KY, USA
| | - Stacey Konkle
- Division of Epidemiology and Health Planning, Kentucky Department for Public Health, Frankfort, KY, USA
| | - Heather Moulton-Meissner
- Division of Healthcare Quality Promotion, Centers for Disease Control and Prevention, Atlanta, GA, USA
| | - Pritish K. Tosh
- Division of Infectious Diseases, Mayo Clinic, Rochester, MN, USA
| | - Douglas A. Thoroughman
- Career Epidemiology Field Officer Program, Centers for Disease Control and Prevention, Frankfort, KY, USA,Division of Epidemiology and Health Planning, Kentucky Department for Public Health, Frankfort, KY, USA
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27
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Song J, Yoon S, In Y, Kim D, Lee H, Yong D, Lee K. Substantial Improvement in Nontuberculous Mycobacterial Identification Using ASTA MicroIDSys Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry with an Upgraded Database. Ann Lab Med 2022; 42:358-362. [PMID: 34907106 PMCID: PMC8677478 DOI: 10.3343/alm.2022.42.3.358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 04/08/2021] [Accepted: 11/26/2021] [Indexed: 11/19/2022] Open
Abstract
Identifying Mycobacterium using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) is challenging. We evaluated the performance of MALDI-TOF MS in identifying nontuberculous mycobacteria (NTM) using the ASTA MicroIDSys system (ASTA Inc., Suwon, Korea) with the MycoDB v1.95s and upgraded MycoDB v2.0-beta databases. We tested 124 NTM isolates collected from Ogawa medium at Severance Hospital, Seoul, Korea, between January and April 2019. MicroIDSys scores were categorized into three groups: ≥140, reliable identification; 130-139, ambiguous identification; and <130, invalid identification. To validate the results, we used the reverse blot hybridization assay (Molecutech REBA MycoID, YD Diagnostics Corp., Korea). Initial analysis using MycoDB v1.95s resulted in 26.6% (33/124) reliable, 43.5% (54/124) ambiguous, and 29.8% (37/124) invalid identifications. Re-analysis using the upgraded MycoDB v2.0-beta database resulted in 94.4% (117/124) reliable, 4.0% (5/124) ambiguous, and 1.6% invalid (2/124) identifications. The percentage of reliable identifications that matched with the reference increased from 26.6% (33/124) with MycoDB v1.95s to 93.5% (116/124) with MycoDB v2.0-beta. The upgraded databases enable substantially improved NTM identification through deep learning in the inference algorithm and by considering more axes in the correlation analysis. MALDI-TOF MS using the upgraded database unambiguously identified most NTM species. Our study lays a foundation for applying MALDI-TOF MS for the simple and rapid identification of NTM isolated from solid media.
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Affiliation(s)
- Junhyup Song
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
| | - Shinyoung Yoon
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
| | - Yongha In
- Department of Database Control, Nosquest Inc., Gyeonggi-do, Korea
| | - Daewon Kim
- Department of Laboratory Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
| | - Hyukmin Lee
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
| | - Dongeun Yong
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
| | - Kyoungwon Lee
- Department of Laboratory Medicine and Research Institute of Bacterial Resistance, Yonsei University College of Medicine, Seoul, Korea
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Tiberi S, Lipman MC, Floto A. Case studies to illustrate good practice in the management of non-tuberculous mycobacterial pulmonary disease. Respir Med Case Rep 2022; 38:101668. [PMID: 35651519 PMCID: PMC9149196 DOI: 10.1016/j.rmcr.2022.101668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/16/2022] [Accepted: 05/17/2022] [Indexed: 11/22/2022] Open
Abstract
Pulmonary disease caused by non-tuberculous mycobacteria (NTM-PD) can be a complex condition for health care providers to manage, and delayed diagnosis and treatment failure are common. Here we present three case studies that illustrate key challenges in the diagnosis and treatment of NTM-PD, and provide guidance on these issues. In addition, we make recommendations on how the overall management of NTM-PD may be improved, through strategies such as physician education to recognise NTM-PD, and the development of multidisciplinary teams and patient-support groups.
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Affiliation(s)
- Simon Tiberi
- Division of Infection, Royal London Hospital, Barts Health NHS Trust, London, UK
- Blizard Institute, Queen Mary University of London, London, UK
- Corresponding author. Queen Mary University of London, Mile End Road, London, E1 4NS, United Kingdom.
| | - Marc C. Lipman
- Royal Free London NHS Foundation Trust, London, UK
- UCL-TB and UCL Respiratory, University College London, London, UK
| | - Andres Floto
- Cambridge Centre for Lung Infection, Royal Papworth Hospital, Cambridge, UK
- Molecular Immunity Unit, University of Cambridge Department of Medicine, Cambridge, UK
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29
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Soil Properties and Moisture Synergistically Influence Nontuberculous Mycobacterial Prevalence in Natural Environments of Hawai'i. Appl Environ Microbiol 2022; 88:e0001822. [PMID: 35435715 DOI: 10.1128/aem.00018-22] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Nontuberculous mycobacteria (NTM) are opportunistic pathogens that cause chronic pulmonary disease (PD). NTM infections are thought to be acquired from the environment; however, the basal environmental factors that drive and sustain NTM prevalence are not well understood. The highest prevalence of NTM PD cases in the United States is reported from Hawai'i, which is unique in its climate and soil composition, providing an opportunity to investigate the environmental drivers of NTM prevalence. We used microbiological sampling and spatial logistic regression complemented with fine-scale soil mineralogy to model the probability of NTM presence across the natural landscape of Hawai'i. Over 7 years, we collected and microbiologically cultured 771 samples from 422 geographic sites in natural areas across the Hawaiian Islands for the presence of NTM. NTM were detected in 210 of these samples (27%), with Mycobacterium abscessus being the most frequently isolated species. The probability of NTM presence was highest in expansive soils (those that swell with water) with a high water balance (>1-m difference between rainfall and evapotranspiration) and rich in Fe-oxides/hydroxides. We observed a positive association between NTM presence and iron in wet soils, supporting past studies, but no such association in dry soils. High soil-water balance may facilitate underground movement of NTM into the aquifer system, potentially compounded by expansive capabilities allowing crack formation under drought conditions, representing further possible avenues for aquifer infiltration. These results suggest both precipitation and soil properties are mechanisms by which surface NTM may reach the human water supply. IMPORTANCE Nontuberculous mycobacteria (NTM) are ubiquitous in the environment, being found commonly in soils and natural bodies of freshwater. However, little is known about the environmental niches of NTM and how they relate to NTM prevalence in homes and other human-dominated areas. To characterize NTM environmental associations, we collected and cultured 771 samples from 422 geographic sites in natural areas across Hawai'i, the U.S. state with the highest prevalence of NTM pulmonary disease. We show that the environmental niches of NTM are most associated with highly expansive, moist soils containing high levels of iron oxides/hydroxides. Understanding the factors associated with NTM presence in the natural environment will be crucial for identifying potential mechanisms and risk factors associated with NTM infiltration into water supplies, which are ultimately piped into homes where most exposure risk is thought to occur.
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30
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Giller DB, Shcherbakova GV, Gerasimov AN, Smerdin SV, Martel II, Kesaev OS, Koroev VV, Severova LP. Surgical Treatment of Nontuberculous Mycobacterial Pulmonary Disease and a Combination of Nontuberculous Mycobacterium Pulmonary Disease and Pulmonary Tuberculosis. Int J Infect Dis 2022; 120:12-21. [PMID: 35398593 DOI: 10.1016/j.ijid.2022.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 03/31/2022] [Accepted: 04/02/2022] [Indexed: 11/18/2022] Open
Abstract
OBJECTIVES Nontuberculous mycobacterial pulmonary disease (NTMPD) is an important health system problem worldwide. Surgical treatment experience is limited, and the safety of such operations is still unclarified. Therefore, improving our knowledge of NTMPD is important. DESIGN In this retrospective observational study, we analyzed the medical records of 2,432 patients operated on from January 2011 through December 2017 in our hospital. There were 20 patients with NTMPD in group 1 and 23 patients with combined NTMPD and pulmonary tuberculosis in group 2. Patients received antibiotic treatment before and after surgery as per Russian Federal clinical guidelines and individual drug susceptibility. RESULTS Postoperative complications occurred in 2 (10%) cases in group 1 and 4 (17.4%) in group 2, and intraoperative complications occurred in 2 (8.7%) cases in group 2. There was no 30-day mortality in both groups. After 1 year, all 40 traced patients had neither bacterial excretion nor cavities in the lungs. After 3 years and 5 years, the efficacy among 32 and 13 traced patients was 100%, respectively. CONCLUSIONS Modern surgery for small NTMPD forms is safe - helping improve outcomes for ineffective antibiotic treatment. Combined surgery and antibiotic treatment are acceptable in both the short and long term.
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Affiliation(s)
- Dmitry Borisivich Giller
- Department of Phthisiopulmonology and Thoracic Surgery named after M.I. Perelman, I.M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya St. bldg. 8\2, Moscow, 119435, Russian Federation.
| | - Galina Vladimirovna Shcherbakova
- Department of Phthisiopulmonology and Thoracic Surgery named after M.I. Perelman, I.M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya St. bldg. 8\2, Moscow, 119435, Russian Federation.
| | - Andrey Nikolaevich Gerasimov
- Department of Phthisiopulmonology and Thoracic Surgery named after M.I. Perelman, I.M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya St. bldg. 8\2, Moscow, 119435, Russian Federation.
| | - Sergey Viktorovich Smerdin
- State Budgetary Healthcare Institution of the Moscow Region "Moscow Regional Clinical Anti-Tuberculosis Dispensary", 170555, Russian Federation, Moscow Region, Shchelkovsky district, Sukmanikha village, possession 1 B..
| | - Ivan Ivanovich Martel
- Department of Phthisiopulmonology and Thoracic Surgery named after M.I. Perelman, I.M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya St. bldg. 8\2, Moscow, 119435, Russian Federation.
| | - Oleg Schamilevich Kesaev
- Department of Phthisiopulmonology and Thoracic Surgery named after M.I. Perelman, I.M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya St. bldg. 8\2, Moscow, 119435, Russian Federation.
| | - Vadim Valerievich Koroev
- Department of Phthisiopulmonology and Thoracic Surgery named after M.I. Perelman, I.M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya St. bldg. 8\2, Moscow, 119435, Russian Federation.
| | - Lyudmila Petrovna Severova
- Department of Phthisiopulmonology and Thoracic Surgery named after M.I. Perelman, I.M. Sechenov First Moscow State Medical University (Sechenov University), Trubetskaya St. bldg. 8\2, Moscow, 119435, Russian Federation.
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Santos A, Carneiro S, Silva A, Gomes JP, Macedo R. Nontuberculous Mycobacteria in Portugal: Trends from the last decade. Pulmonology 2022:S2531-0437(22)00023-X. [PMID: 35219623 DOI: 10.1016/j.pulmoe.2022.01.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/24/2022] [Accepted: 01/25/2022] [Indexed: 11/25/2022] Open
Abstract
INTRODUCTION AND OBJECTIVES Nontuberculous mycobacteria (NTM) are opportunistic human pathogens found in the environment. The transmission seems to be associated with inhalation of aerosol droplets, ingestion or trauma events. Recent studies indicate that NTM disease is increasing worldwide, however, the true clinical impact of NTM infections is difficult to determine due to challenges in discriminating between disease and colonization as they are ubiquitous in the environment. In addition, understanding the epidemiology of NTM is difficult and has not yet been established. In this work, we used a country NTM representative collection from the National Reference Laboratory for Tuberculosis (NRL-TB) of the National Institute of Health (INSA), to characterize the circulation trends of NTM species in Portugal and the most affected regions, contributing to a better understanding of the NTM epidemiology. MATERIAL AND METHODS We conducted a nationwide retrospective study where all individuals with positive NTM cultures at the NRL-TB of the INSA from 2014 to December 2020 were included. Positive cultures were identified using GenoType Mycobacterium CM/AS® (Hain Lifescience) according to manufacturer's instructions, or hsp65 DNA sequencing as previously described. Social-demographic data from patients were also analyzed and patients classified into 3 groups according only to microbiological data, "definite NTM disease", "NTM colonization" and, "possible NTM disease". RESULTS In the period 2014-2020, the NRL-TB performed 50397 cultures. Among these, 1118 cultures were NTM positive retrieved from 944. Most of our cases were in patients whose mean age was 64±15.9 years, and no significant differences between gender was observed, although more frequent in male patients. Overall, from the 944 cases, we were able to identified 93 "definite NTM disease" cases and 79 "possible NTM disease". Mycobacterium avium complex (MAC) (40,8%), Mycobacterium abscessus-chelonae complex (MABC) (9,6%) and Mycobacterium fortuitum (6,3%) were responsible for most of the infections. The geographical distribution of NTM cases varied significantly and was possible to observe that was independent of population density. The region were most cases occurred was Lisbon Metropolitan Area (31,9%), followed by North (25,3%) and Centre (24,4%), however North region has the highest number of "definite NTM disease" cases (n=33). CONCLUSIONS This is the first national wide epidemiological study on this subject, contributing to a better understanding of NTM dynamics in Portugal. MAC was the NTM species responsible for the majority of infections and, LMA the region with the highest number of cases. It was also possible to conclude that the number of NTM isolates is independent of the demography of the region.
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Affiliation(s)
- A Santos
- National Reference Laboratory for Mycobacteria, Dept of Infectious Diseases, National Institute of Health, Lisbon, Portugal
| | - S Carneiro
- National Reference Laboratory for Mycobacteria, Dept of Infectious Diseases, National Institute of Health, Lisbon, Portugal; Department of Life Sciences, NOVA School of Science and Technology, NOVA University Lisbon, Caparica, Portugal
| | - A Silva
- National Reference Laboratory for Mycobacteria, Dept of Infectious Diseases, National Institute of Health, Porto, Portugal
| | - J P Gomes
- Bioinformtics Unit, National Institute of Health, Lisbon, Portugal
| | - R Macedo
- National Reference Laboratory for Mycobacteria, Dept of Infectious Diseases, National Institute of Health, Lisbon, Portugal.
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The first diagnostic test for specific detection of Mycobacterium simiae using an electrochemical label-free DNA nanobiosensor. Talanta 2022; 238:123049. [PMID: 34801906 DOI: 10.1016/j.talanta.2021.123049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 10/06/2021] [Accepted: 11/06/2021] [Indexed: 01/08/2023]
Abstract
Mycobacterium simiae has been reported to be the most prevalent species of Nontuberculous mycobacteria (NTM) in many countries. As both phenotypic and molecular detection of M. simiae and other NTMs have limitations, finding an accurate, fast, and low-cost diagnostic method is critical for the management of infections. Here, we report the development of a new type of label-free electrochemical biosensor using a gold electrode decorated with l-cysteine/PAMAM dendrimer for specific targeting of M. simiae ITS sequence. DNA hybridization was monitored by measuring changes in the free guanine electrical signal with changing ssDNA target concentrations by differential pulse voltammetry (DPV) method. Response surface methodology (RSM) was applied for the optimization of variables affecting biosensor response. Under optimal conditions, the biosensor revealed a wide linear range from 10-14 M to 10-6 M and a detection limit of 1.40 fM. The fabricated biosensor showed an excellent selectivity to M. simiae in the presence of other similar pathogenic bacteria. Moreover, experimental results confirmed that this biosensor exhibited great precision and high reproducibility, hence provides a low-cost, label-free, and faster detection analysis, representing a novel strategy in detecting other NTMs.
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Iqbal F, Noor SS, Najjad KR, Ishaque S, Memon N, Zano S. The Unusual Cause of Prosthetic Joint Infection: Outcomes of Nontuberculous Mycobacteria Treatment Following Primary Total Knee Arthroplasty. Clin Orthop Surg 2022; 14:507-513. [DOI: 10.4055/cios21085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 08/20/2021] [Accepted: 08/31/2021] [Indexed: 11/06/2022] Open
Affiliation(s)
- Faizan Iqbal
- Department of Orthopaedic Surgery, Baqai Medical University, Karachi, Pakistan
| | - Syed Shahid Noor
- Department of Orthopaedic Surgery, Liaquat National Hospital and Medical College, Karachi, Pakistan
| | - Kazim Rahim Najjad
- Department of Orthopaedic Surgery, Liaquat National Hospital and Medical College, Karachi, Pakistan
| | - Sadia Ishaque
- Department of Infectious Disease, Shaheed Mohtarma Benazir Bhutto Trauma Center, Karachi, Pakistan
| | - Nouman Memon
- Department of Orthopaedic Surgery, Liaquat National Hospital and Medical College, Karachi, Pakistan
| | - Sheh Zano
- Department of Biochemistry, Ziauddin Medical University, Karachi, Pakistan
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Dohál M, Porvazník I, Solovič I, Mokrý J. Whole Genome Sequencing in the Management of Non-Tuberculous Mycobacterial Infections. Microorganisms 2021; 9:microorganisms9112237. [PMID: 34835363 PMCID: PMC8621650 DOI: 10.3390/microorganisms9112237] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/22/2021] [Accepted: 10/25/2021] [Indexed: 12/20/2022] Open
Abstract
Infections caused by non-tuberculous mycobacteria (NTM) have been a public health problem in recent decades and contribute significantly to the clinical and economic burden globally. The diagnosis of infections is difficult and time-consuming and, in addition, the conventional diagnostics tests do not have sufficient discrimination power in species identification due to cross-reactions and not fully specific probes. However, technological advances have been made and the whole genome sequencing (WGS) method has been shown to be an essential part of routine diagnostics in clinical mycobacteriology laboratories. The use of this technology has contributed to the characterization of new species of mycobacteria, as well as the identification of gene mutations encoding resistance and virulence factors. Sequencing data also allowed to track global outbreaks of nosocomial NTM infections caused by M. abscessus complex and M. chimaera. To highlight the utility of WGS, we summarize recent scientific studies on WGS as a tool suitable for the management of NTM-induced infections in clinical practice.
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Affiliation(s)
- Matúš Dohál
- Biomedical Center Martin, Department of Pharmacology, Jessenius Faculty of Medicine, Comenius University, 036 01 Martin, Slovakia;
- Correspondence: ; Tel.: +42-19-0252-4199
| | - Igor Porvazník
- National Institute of Tuberculosis, Lung Diseases and Thoracic Surgery, 059 81 Vyšné Hágy, Slovakia; (I.P.); (I.S.)
- Faculty of Health, Catholic University, 034 01 Ružomberok, Slovakia
| | - Ivan Solovič
- National Institute of Tuberculosis, Lung Diseases and Thoracic Surgery, 059 81 Vyšné Hágy, Slovakia; (I.P.); (I.S.)
- Faculty of Health, Catholic University, 034 01 Ružomberok, Slovakia
| | - Juraj Mokrý
- Biomedical Center Martin, Department of Pharmacology, Jessenius Faculty of Medicine, Comenius University, 036 01 Martin, Slovakia;
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van Ingen J, Obradovic M, Hassan M, Lesher B, Hart E, Chatterjee A, Daley CL. Nontuberculous mycobacterial lung disease caused by Mycobacterium avium complex - disease burden, unmet needs, and advances in treatment developments. Expert Rev Respir Med 2021; 15:1387-1401. [PMID: 34612115 DOI: 10.1080/17476348.2021.1987891] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
INTRODUCTION Nontuberculous mycobacterial (NTM) lung disease (LD) is the most common clinical manifestation of NTM infection and is a growing health concern. Up to 85% of NTM-LD cases are caused by Mycobacterium avium complex (MAC). Increased awareness of NTM-LD caused by MAC is needed as patients with this disease experience substantial burden and unmet treatment needs. AREAS COVERED This review provides clinicians and regulatory and healthcare decision makers an overview of the clinical, economic, and humanistic burden of NTM-LD and the unmet treatment needs faced by patients and clinicians. The review focuses on NTM-LD caused by MAC. A summary of the 2020 NTM guidelines specifically for MAC-LD and an overview of novel treatment options, including amikacin liposome inhalation suspension (ALIS) as the first approved therapy for refractory MAC-LD, and investigational drugs in testing phase are provided. EXPERT OPINION Key advancements in NTM-LD management include recent updates to clinical practice guidelines, approval of ALIS for the treatment of refractory MAC-LD, and ongoing clinical trials of investigational treatments. Yet opportunities still exist to improve patient outcomes, including development of better screening tools, such as reliable and responsive biomarkers to help identify high-risk patients, and addressing unmet treatment needs.
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Affiliation(s)
- Jakko van Ingen
- Radboudumc Center for Infectious Diseases, Department of Medical Microbiology, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | | | | | | | | | - Charles L Daley
- Department of Medicine, National Jewish Health, Denver, Co, and the University of Colorado School of Medicine, Aurora, CO, US
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Racemization-free synthesis of Nα-2-thiophenoyl-phenylalanine-2-morpholinoanilide enantiomers and their antimycobacterial activity. Amino Acids 2021; 53:1187-1196. [PMID: 34259925 PMCID: PMC8325651 DOI: 10.1007/s00726-021-03044-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 06/07/2021] [Indexed: 11/30/2022]
Abstract
Nα-2-thiophenoyl-d-phenylalanine-2-morpholinoanilide (MMV688845, IUPAC: N-(1-((2-morpholinophenyl)amino)-1-oxo-3-phenylpropan-2-yl)thiophene-2-carboxamide) from the Pathogen Box® library (Medicines for Malaria Ventures, MMV) is a promising lead compound for antimycobacterial drug development. Two straightforward synthetic routes to the title compound starting from phenylalanine or its Boc-protected derivative are reported. Employing Boc-phenylalanine as starting material and the T3P® and PyBOP® amide coupling reagents enables racemization-free synthesis, avoiding the need for subsequent separation of the enantiomers. The crystal structure of the racemic counterpart gives insight into the molecular structure and hydrogen bonding interactions in the solid state. The R-enantiomer of the title compound (derived from d-phenylalanine) exhibits activity against non-pathogenic and pathogenic mycobacterial strains, whereas the S-enantiomer is inactive. Neither of the enantiomers and the racemate of the title compound shows cytotoxicity against various mammalian cells.
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Mycobacterium farcinogenes osteomyelitis of the proximal tibia: A case report. IDCases 2021; 25:e01194. [PMID: 34189040 PMCID: PMC8217697 DOI: 10.1016/j.idcr.2021.e01194] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2021] [Accepted: 06/12/2021] [Indexed: 11/23/2022] Open
Abstract
Non-tuberculous mycobacteria (NTM) are an unusual cause of osteomyelitis. Mycobacterium farcinogenes is an uncommon cause of human disease. We describe here the first case of M. farcinogenes osteomyelitis in a 49-year-old man who underwent left knee anterior cruciate ligament and medial meniscal repair which was complicated by recurrent septic arthritis and surgical site infection. As a consequence, he underwent multiple surgical debridements. Ultimately, left proximal tibial osteomyelitis was diagnosed and M. farcinogenes was recovered from the tissue biopsy culture. Clinical improvement was achieved following surgical removal of the prosthesis along with prolonged combination antimicrobial therapy.
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Thornton CS, Mellett M, Jarand J, Barss L, Field SK, Fisher DA. The respiratory microbiome and nontuberculous mycobacteria: an emerging concern in human health. Eur Respir Rev 2021; 30:30/160/200299. [PMID: 34039671 DOI: 10.1183/16000617.0299-2020] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 03/09/2021] [Indexed: 12/24/2022] Open
Abstract
Nontuberculous mycobacteria (NTM) are diverse microbial species encompassing commensals and pathogens with the ability to cause pulmonary disease in both immunocompetent and immunocompromised individuals. In contrast to Mycobacterium tuberculosis, which has seen a reduction in disease rates in developed countries, the incidence and prevalence of NTM disease is increasing. NTM are difficult to treat with standard antimicrobial regimens and may contain both virulence and antibiotic-resistance genes with potential for pathogenicity. With the advent of molecular techniques, it has been elucidated that these organisms do not reside in isolation and are rather part of a complex milieu of microorganisms within the host lung microbiome. Over the last decade, studies have highlighted the impact of the microbiome on host immunity, metabolism and cell-cell communication. This recognition of a broader community raises the possibility that the microbiome may disrupt the balance between infection and disease. Additionally, NTM disease progression and antimicrobial therapy may affect the healthy steady state of the host and function of the microbiome, contributing to further dysbiosis and clinical deterioration. There have been limited studies assessing how NTM may influence the relationship between microbiome and host. In this review, we highlight available studies about NTM and the microbiome, postulate on virulence mechanisms by which these microorganisms communicate and discuss implications for treatment.
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Affiliation(s)
- Christina S Thornton
- Division of Respirology, University of Calgary, Calgary, Canada .,Dept of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada.,Joint first authors
| | - Madeline Mellett
- Dept of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada.,Joint first authors
| | - Julie Jarand
- Division of Respirology, University of Calgary, Calgary, Canada.,Dept of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada.,TB Services, University of Calgary, Calgary, Canada
| | - Leila Barss
- Division of Respirology, University of Calgary, Calgary, Canada.,Dept of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada.,TB Services, University of Calgary, Calgary, Canada
| | - Stephen K Field
- Division of Respirology, University of Calgary, Calgary, Canada.,Dept of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada.,TB Services, University of Calgary, Calgary, Canada
| | - Dina A Fisher
- Division of Respirology, University of Calgary, Calgary, Canada.,Dept of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Canada.,TB Services, University of Calgary, Calgary, Canada.,Dept of Community Health Sciences, University of Calgary, Calgary, Canada
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Repurposing Avermectins and Milbemycins against Mycobacteroides abscessus and Other Nontuberculous Mycobacteria. Antibiotics (Basel) 2021; 10:antibiotics10040381. [PMID: 33916775 PMCID: PMC8066277 DOI: 10.3390/antibiotics10040381] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 03/29/2021] [Accepted: 03/31/2021] [Indexed: 11/16/2022] Open
Abstract
Infections caused by nontuberculous mycobacteria (NTM) are increasing worldwide, resulting in a new global health concern. NTM treatment is complex and requires combinations of several drugs for lengthy periods. In spite of this, NTM disease is often associated with poor treatment outcomes. The anti-parasitic family of macrocyclic lactones (ML) (divided in two subfamilies: avermectins and milbemycins) was previously described as having activity against mycobacteria, including Mycobacterium tuberculosis, Mycobacterium ulcerans, and Mycobacterium marinum, among others. Here, we aimed to characterize the in vitro anti-mycobacterial activity of ML against a wide range of NTM species, including Mycobacteroides abscessus. For this, Minimum Inhibitory Concentration (MIC) values of eight ML were determined against 80 strains belonging to nine different NTM species. Macrocyclic lactones showed variable ranges of anti-mycobacterial activity that were compound and species-dependent. Milbemycin oxime was the most active compound, displaying broad-spectrum activity with MIC lower than 8 mg/L. Time kill assays confirmed MIC data and showed bactericidal and sterilizing activity of some compounds. Macrocyclic lactones are available in many formulations and have been extensively used in veterinary and human medicine with suitable pharmacokinetics and safety properties. This information could be exploited to explore repurposing of anti-helminthics for NTM therapy.
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Non tuberculous mycobacteria pulmonary disease: patients and clinicians working together to improve the evidence base for care. Int J Infect Dis 2021; 113 Suppl 1:S73-S77. [PMID: 33781905 DOI: 10.1016/j.ijid.2021.03.064] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/18/2021] [Accepted: 03/19/2021] [Indexed: 12/24/2022] Open
Abstract
Non-tuberculous mycobacterial pulmonary disease is on the rise globally. It is often missed, and causes significant morbidity and even mortality. Here, members of a clinical research network and a patient support group discuss some of the current key issues in NTM management. In addition to the need for research into epidemiology, immunology and treatment, we recommend greater use of patient and clinician networks to: (i) educate primary and secondary care clinicians to develop a high index of suspicion when investigating and treating at risk populations. (ii) promote a multidisciplinary team. (iii) promote shared patient-clinician decision making throughout care. (iv) incorporate use of patient self-report measures to assess progress and outcomes. (v) increase education of patients on their illness and its management. (vi) recruit patients into research projects and registries to improve the clinical evidence base. (vii) increase co-production of research with key stakeholders such as patients and their families, using expert patients and patient groups. (viii) understand more about the psychological, social and economic consequences of the disease.
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Thangavelu K, Krishnakumariamma K, Pallam G, Dharm Prakash D, Chandrashekar L, Kalaiarasan E, Das S, Muthuraj M, Joseph NM. Prevalence and speciation of non-tuberculous mycobacteria among pulmonary and extrapulmonary tuberculosis suspects in South India. J Infect Public Health 2021; 14:320-323. [PMID: 33618276 DOI: 10.1016/j.jiph.2020.12.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/24/2020] [Accepted: 12/20/2020] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Non tuberculous mycobacteria (NTM) is an emerging opportunistic pathogen increasing globally and indistinguishable from tuberculosis (TB), which remains a challenge particularly in developing countries. This study aimed to identify the prevalence and diversity of NTM among both pulmonary TB (PTB) and extrpulmonary TB (EPTB) clinical isolates from south India. METHODOLOGY A total of 7633 specimens from TB suspects (PTB, n = 4327 and EPTB, n = 3306) were collected during the study period (July 2018-March 2020) in a tertiary care hospital. The study specimens were subjected to Ziehl Neelsen (ZN) staining and Auramine phenol (AP) staining followed by Lowenstein-Jensen (LJ) and mycobacteria growth indicator tube (MGIT) culture. The MPT64 immunochromatographic test (ICT) was performed among mycobacterial cultures and ICT negative isolates were subjected to Line Probe Assay (LPA). In addition, 53 (PTB, 48 and EPTB, 5) NTM MGIT positive cultures were collected from Intermediate Reference Laboratory (IRL), Puducherry and subjected to LPA for speciation. RESULTS Of the 7633 TB suspects, 0.6% were diagnosed as NTM diseases and 5.5% with Mycobacterium tuberculosis (MTBC). NTM infection was observed among 0.7% (31/4327) of PTB and 0.4% (14/3306) of EPTB. MTBC was detected among 6.1% (264/4327) of PTB and 4.6% (153/3306) of EPTB. Among 98 NTM cultures, 80.6% of isolates were recovered from PTB and 19.4% from EPTB specimens. Among pulmonary specimens, Mycobacterium intracellulare (26.6%), Mycobacterium abscessus (17.7%) and Mycobacterium kansasii (12.7%) were the most frequently detected species, while Mycobacterium intracellulare (21.1%), Mycobacterium scrofulaceum (15.8%) and Mycobacterium fortuitum (10.5%) were common in extrapulmonary specimens. CONCLUSION The frequency of NTM infection among TB suspects was low at a South Indian tertiary care hospital. The most predominant NTM species isolated from both pulmonary and extrapulmonary specimens was M. intracellulare.
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Affiliation(s)
- Kalpana Thangavelu
- Department of Microbiology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
| | - Krishnapriya Krishnakumariamma
- Department of Microbiology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
| | - Gopichand Pallam
- Department of Microbiology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
| | - Dwivedi Dharm Prakash
- Department of Pulmonary Medicine, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
| | - Laxmisha Chandrashekar
- Department of Dermatology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
| | - Ellappan Kalaiarasan
- Department of Microbiology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
| | - Sindhusuta Das
- Department of Microbiology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
| | - Muthaiah Muthuraj
- Intermediate Reference Laboratory, Government Hospital for Chest Diseases, Pondicherry, India
| | - Noyal Mariya Joseph
- Department of Microbiology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India.
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Polastri M, Comellini V. Physiotherapy for patients with non-tuberculous mycobacterial disease. INTERNATIONAL JOURNAL OF THERAPY AND REHABILITATION 2021. [DOI: 10.12968/ijtr.2020.0032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Massimiliano Polastri
- Department of Continuity of Care and Disability, Physical Medicine and Rehabilitation, St Orsola University Hospital, Bologna, Italy
| | - Vittoria Comellini
- Respiratory and Critical Unit, St Orsola University Hospital, Bologna, Italy
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Sun Y, Chen G, Liu Z, Yu L, Shang Y. A bioinformatics analysis to identify novel biomarkers for prognosis of pulmonary tuberculosis. BMC Pulm Med 2020; 20:279. [PMID: 33099324 PMCID: PMC7585184 DOI: 10.1186/s12890-020-01316-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 10/15/2020] [Indexed: 11/10/2022] Open
Abstract
Background Due to the fact that pulmonary tuberculosis (PTB) is a highly infectious respiratory disease characterized by high herd susceptibility and hard to be treated, this study aimed to search novel effective biomarkers to improve the prognosis and treatment of PTB patients. Methods Firstly, bioinformatics analysis was performed to identify PTB-related differentially expressed genes (DEGs) from GEO database, which were then subjected to GO annotation and KEGG pathway enrichment analysis to initially describe their functions. Afterwards, clustering analysis was conducted to identify PTB-related gene clusters and relevant PPI networks were established using the STRING database. Results Based on the further differential and clustering analyses, 10 DEGs decreased during PTB development were identified and considered as candidate hub genes. Besides, we retrospectively analyzed some relevant studies and found that 7 genes (CCL20, PTGS2, ICAM1, TIMP1, MMP9, CXCL8 and IL6) presented an intimate correlation with PTB development and had the potential serving as biomarkers. Conclusions Overall, this study provides a theoretical basis for research on novel biomarkers of PTB, and helps to estimate PTB prognosis as well as probe into targeted molecular treatment. Supplementary information Supplementary information accompanies this paper at 10.1186/s12890-020-01316-2.
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Affiliation(s)
- Yahong Sun
- Department of Pulmonary and Critical Care Medicine, Haining People's Hospital, Jiaxing, 314400, China
| | - Gang Chen
- Department of Pulmonary and Critical Care Medicine, Haining People's Hospital, Jiaxing, 314400, China
| | - Zhihao Liu
- Department of Pulmonary and Critical Care Medicine, Haining People's Hospital, Jiaxing, 314400, China
| | - Lina Yu
- Department of Pulmonary and Critical Care Medicine, Haining People's Hospital, Jiaxing, 314400, China
| | - Yan Shang
- Department of Respiratory and Critical Care Medicine, Changhai Hospital, Naval Medical University (Second Military Medical University), No. 168 Changhai Road, Yangpu District, Shanghai, 200433, China.
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Tiberi S, Migliori GB, Muhwa Chakaya J, Kaesava T, Al Abri SS, Wejse C, Goletti D, Kapata N, Sotgiu G, Bomanji J, Zellweger JP, Hasan R, Irfan M, Ahmed I, Pshenichnaya N, Vasilieva I, Yeboah-Manu D, Alffenaar JW, Kim HY, Centis R, Cirillo DM, Alagna R, D'Ambrosio L, Cui X, Cao B, Maeurer M, Harries AD, Ippolito G, Raviglione M, Zumla A, Petersen E. Commemorating World TB Day 2020: "IT'S TIME" - It's time to End the Global TB Epidemic. Int J Infect Dis 2020; 92S:S1-S4. [PMID: 32145464 DOI: 10.1016/j.ijid.2020.03.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 03/02/2020] [Indexed: 12/16/2022] Open
Affiliation(s)
- Simon Tiberi
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom; Division of Infection, Royal London Hospital, Barts Health NHS Trust, London, United Kingdom.
| | - Giovanni Battista Migliori
- Servizio di Epidemiologia Clinica delle Malattie Respiratorie, Istituti Clinici Scientifici Maugeri IRCCS, Via Roncaccio 16, Tradate, Varese, 21049, Italy.
| | - Jeremiah Muhwa Chakaya
- Department of Medicine, Therapeutics, Dermatology and Psychiatry, Kenyatta University, Nairobi, Kenya.
| | - Tereza Kaesava
- Global TB Programme, World Health Organization, Geneva, Switzerland.
| | - Seif Salem Al Abri
- Directorate General for Disease Surveillance and Control, Ministry of Health, Muscat, Oman.
| | - Christian Wejse
- Department of Infectious Disease, Aarhus University Hospital and School of Public Health, Faculty of Health Sciences, University of Aarhus, Denmark.
| | - Delia Goletti
- Translational Research Unit, National Institute for Infectious Diseases "L. Spallanzani" IRCCS, Department of Epidemiology and Preclinical Research, Rome, Italy.
| | - Nathan Kapata
- UNZA-UCLMS Research and Training Program, University Teaching Hospital, Lusaka, Zambia; Zambia National Public Health Institute, Ministry of Health, Lusaka, Zambia.
| | - Giovanni Sotgiu
- Clinical Epidemiology and Medical Statistics Unit, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy.
| | - Jamshed Bomanji
- Institute of Nuclear Medicine, UCLH NHS Foundation Trust, London, United Kingdom.
| | | | - Rumina Hasan
- Department of Pathology and Laboratory Medicine, The Aga Khan University, Karachi, Pakistan.
| | | | | | - Natalia Pshenichnaya
- Rostov State Medical University, Department of Infectious Diseases, Rostov-on-Don, Russia
| | - Irina Vasilieva
- National Medical Research Center of Phthisiopulmonology and Infectious Diseases, Moscow, Russia.
| | - Dorothy Yeboah-Manu
- Department of Bacteriology, Noguchi Memorial Institute for Medical Research, Accra, Ghana.
| | - Jan-Willem Alffenaar
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia.
| | - Hannah Yejin Kim
- Sydney Pharmacy School, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia.
| | - Rosella Centis
- Servizio di Epidemiologia Clinica delle Malattie Respiratorie, Istituti Clinici Scientifici Maugeri IRCCS, Via Roncaccio 16, Tradate, Varese, 21049, Italy.
| | - Daniela Maria Cirillo
- Emerging Pathogens Unit, TB Supranational Reference Laboratory, San Raffaele Scientific Institute, Milan, Italy.
| | - Riccardo Alagna
- Emerging Pathogens Unit, TB Supranational Reference Laboratory, San Raffaele Scientific Institute, Milan, Italy.
| | | | - Xiaojing Cui
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, No 2, Beijing, China.
| | - Bin Cao
- Department of Pulmonary and Critical Care Medicine, Center of Respiratory, China-Japan Friendship Hospital, National Clinical Research Center for Respiratory Diseases, No 2, Beijing, China.
| | - Markus Maeurer
- Immunotherapy Programme, Champalimaud Centre for the Unknown, 1400-038 Lisbon, Portugal; I Med Clinic, University of Mainz, Mainz, Germany.
| | - Anthony D Harries
- Centre for Operational Research, International Union Against Tuberculosis and Lung Disease, Paris, France.
| | - Giuseppe Ippolito
- National Institute for Infectious Diseases Lazzaro Spallanzani-IRCCS- Via Portuense, Rome, Italy.
| | - Mario Raviglione
- University of Milan, Italy, and Global Studies Institute, University of Geneva, Geneva, Switzerland.
| | - Alimuddin Zumla
- Department of Infection, Division of Infection and Immunity, University College London and NIHR Biomedical Research Centre, UCL Hospitals NHS Foundation Trust, London, United Kingdom.
| | - Eskild Petersen
- Directorate General for Disease Surveillance and Control, Ministry of Health, Muscat, Oman; Institute for Clinical Medicine, Faculty of Health Science, University of Aarhus, Denmark; ESCMID Emerging Infections Task Force, Basel, Switzerland.
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