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https://www.readbyqxmd.com/read/28551717/total-igm-and-anti-phosphatidylcholine-igm-antibody-secretion-continue-after-clearance-of-mycobacterium-bovis-bacillus-calmette-guerin-pleural-infection
#1
Ciara Ordoñez, Musharaf Tarajia, René Rivera, Dilcia Sambrano, Victoria Batista, Mónica Chávez, Denis Tapia, Patricia L Fernández, Amador Goodridge
The cellular immune response to Mycobacterium tuberculosis infection has been well characterized, while the humoral antibody response remains underexplored. We aimed to examine the total and anti-phospholipid IgM levels in the pleural lavage from mice with Mycobacterium bovis BCG extrapulmonary infection. We found that the levels of total and anti-phosphatidylcholine IgM antibodies remained significantly higher in infected mice as compared to non-infected mice up to day 90 after BCG infection, while the anti-cardiolipin IgM antibody levels decreased with bacteria clearance...
May 27, 2017: Lung
https://www.readbyqxmd.com/read/28551117/electrochemical-determination-of-m-tuberculosis-antigen-based-on-poly-3-4-ethylenedioxythiophene-and-functionalized-carbon-nanotubes-hybrid-platform
#2
Himkusha Thakur, Navpreet Kaur, Dipti Sareen, Nirmal Prabhakar
An electrochemical DNA aptasensor for the detection of Mycobacterium tuberculosis (M. tb) antigen MPT64, was developed using Poly(3,4-ethylenedioxythiophene) (PEDOT) doped with carbon nanotubes (CNTs). The biotinylated aptamer was immobilized onto streptavidin attached to -COOH functionalized CNTs via streptavidin-biotin interaction. Various characterization studies as FT-IR, FE-SEM, EIS and DPV were done to validate each fabrication step of the aptasensor. Optimization studies related to aptamer concentration and response time were performed...
August 15, 2017: Talanta
https://www.readbyqxmd.com/read/28550962/hiv-and-mycobacteria
#3
REVIEW
Gary W Procop
The importance of mycobacteria as opportunistic pathogens, particularly members of the M. avium complex (MAC), in patients with progressive HIV infection was recognized early in the AIDS epidemic. It took longer to appreciate the global impact and devastation that would result from the deadly synergy that exists between HIV and M. tuberculosis. This HIV/M. tuberculosis co-pandemic is ongoing and claiming millions of lives every year. In addition to MAC, a number of other non-tuberculous mycobacteria have been recognized as opportunistic pathogens in HIV-infected individuals; some of these are more commonly encountered (e...
April 12, 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28550826/-multidrug-resistant-tuberculosis-by-strains-of-beijing-family-in-patients-from-lisbon-portugal-preliminary-report
#4
Fernando Maltez, Teresa Martins, Diana Póvoas, João Cabo, Helena Peres, Francisco Antunes, João Perdigão, Isabel Portugal
INTRODUCTION: Beijing family strains of Mycobacterium tuberculosis are associated with multidrug-resistance. Although strains of the Lisboa family are the most common among multidrug-resistant and extensively drug-resistant patients in the region, several studies have reported the presence of the Beijing family. However, the features of patients from whom they were isolated, are not yet known. MATERIAL AND METHODS: Retrospective study involving 104 multidrug-resistant and extensively drug-resistant strains of Mycobacterium tuberculosis, from the same number of patients, isolated and genotyped between 1993 and 2015 in Lisbon...
March 31, 2017: Acta Médica Portuguesa
https://www.readbyqxmd.com/read/28549496/mutual-impact-of-diabetes-mellitus-and-tuberculosis-in-china
#5
Jun Cheng, Hui Zhang, Yan Lin Zhao, Li Xia Wang, Ming Ting Chen
China has a double burden of diabetes mellitus and tuberculosis, and many studies have been carried out on the mutual impact of these two diseases. This paper systematically reviewed studies conducted in China covering the mutual impact of epidemics of diabetes and tuberculosis, the impact of diabetes on multi-drug resistant tuberculosis and on the tuberculosis clinical manifestation and treatment outcome, the yields of bi-directional screening, and economic evaluation for tuberculosis screening among diabetes patients...
May 2017: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/28549451/clinical-and-laboratory-evaluation-of-new-immigrant-and-refugee-children-arriving-in-greece
#6
Ioanna D Pavlopoulou, Marsela Tanaka, Stavroula Dikalioti, Evangelia Samoli, Pavlos Nisianakis, Olga D Boleti, Konstantinos Tsoumakas
BACKGROUND: Migrant children are a population at risk for various health problems. Despite the increased inflow of migrants in Greece, data regarding their health assessment are lacking. This study aims to describe the clinical and certain laboratory characteristics and identify possible associations in a group of new immigrant (I) and refugee (R) children, arriving in Athens, Greece. METHODS: A prospective, cross- sectional study was performed in a migrant outpatient clinic of a tertiary Children's hospital...
May 26, 2017: BMC Pediatrics
https://www.readbyqxmd.com/read/28549086/to-test-or-not-to-test-ending-the-age-old-debate-for-drug-resistant-tuberculosis
#7
Jennifer Furin, Helen Cox
No abstract text is available yet for this article.
May 26, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28549036/the-role-of-molecular-techniques-for-the-detection-of-mycobacterium-tuberculosis-complex-in-paraffin-embedded-biopsies
#8
Zaira Moure, Josep Castellví, Adrián Sánchez-Montalvá, Tomás Pumarola, M Teresa Tórtola
INTRODUCTION: Extrapulmonary tuberculosis (EPTB) is increasingly frequent in developed countries. When it is not clinically suspected, samples are not collected for culture and the only material available is a tissue paraffin block. OBJECTIVE: The aim of this study was to evaluate FluoroType MTB (FT-MTB) and GenoType MTBDRplus methods for the detection of Mycobaterium tuberculosis complex in paraffin-embedded biopsies comparing the results to tuberculosis diagnosis...
May 25, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28548709/-polka-dot-macrophages-on-cytology-of-bilateral-adrenal-masses-nailing-disseminated-histoplasmosis
#9
Sumit Grover, Pavneet Kaur Selhi, Neena Sood, Ridhi Sood, Harpreet Kaur
Histoplasma capsulatum is a saprophytic fungus that in immunocompetent individuals causes self-limited pulmonary infection; however, in immunosuppressed patients involvement of the reticuloendothelial system, alimentary tract, urinary tract, and central nervous system is fairly common. Rarely patients present with bilateral adrenal masses which mimic tuberculosis and metastasis on radiology because of associated central necrosis. Ultrasound guided FNAC aided by special stains like Periodic Acid Schiff (PAS) and Gomori Methenamine Silver (GMS) may help in early diagnosis in such dubious cases...
May 26, 2017: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/28548640/efficacy-of-%C3%AE-lactam-%C3%AE-lactamase-inhibitor-combination-is-linked-to-whib4-mediated-changes-in-redox-physiology-of-mycobacterium-tuberculosis
#10
Saurabh Mishra, Prashant Shukla, Ashima Bhaskar, Kushi Anand, Priyanka Baloni, Rajiv Kumar Jha, Abhilash Mohan, Raju S Rajmani, Valakunja Nagaraja, Nagasuma Chandra, Amit Singh
Mycobacterium tuberculosis (Mtb) expresses a broad-spectrum β-lactamase (BlaC) that mediates resistance to one of the highly effective antibacterials, β-lactams. Nonetheless, β-lactams showed mycobactericidal activity in combination with β-lactamase inhibitor, clavulanate (Clav). However, the mechanistic aspects of how Mtb responds to β-lactams such as Amoxicillin in combination with Clav (referred as Augmentin [AG]) are not clear. Here, we identified cytoplasmic redox potential and intracellular redox sensor, WhiB4, as key determinants of mycobacterial resistance against AG...
May 26, 2017: ELife
https://www.readbyqxmd.com/read/28547750/management-of-long-term-therapy-with-biological-drugs-in-psoriatic-patients-with-latent-tuberculosis-infection-in-real-life-setting
#11
Andrea Conti, Stefano Piaserico, Paolo Gisondi, Giulia Odorici, Giovanna Galdo, Claudia Lasagni, Giovanni Pellacani
Psoriatic patients with latent tuberculosis infection (LTBI) need a prophylaxis before starting a treatment with biological drugs. The aim of this study is to investigate the safety and efficacy of prophylaxis of LTBI in psoriatic patients receiving long-term biological drugs. The study included 56 patients (42 male and 14 female) affected by moderate-to-severe psoriasis (mean PASI: 12.8 ± 6.9 SD) treated with anti-TNF-α and/or anti IL 12, 23 and/or anti-CD11 drugs with a diagnosis of LTBI. LTBI diagnosis was based on tuberculin skin test and/or QuantiFERON TB Gold test positivity and chest X-ray suggestive, without clinical, or microbiological evidence of active disease...
May 26, 2017: Dermatologic Therapy
https://www.readbyqxmd.com/read/28547728/the-protective-effect-of-a-novel-antioxidant-gene-from-mycobacterium-avium-against-nitrosative-and-oxidative-stress-in-e-coli
#12
Shiyi He, Aiyan Wang, Xueping Ning, Dongjun Yang, Min Ling
The production of reactive oxygen intermediates (ROI) and reactive nitrogen intermediates (RNI) is an important host defense mechanism in response to infection by Mycobacterium tuberculosis. A variety of genes have been implicated in resistance to ROI and RNI, including noxR1. However, studies in Mycobacterium avium, an important pathogen among nontuberculous mycobacteria, are limited. We aim to investigate the role of a novel gene cloned from M. avium with high similarity to noxR1, noA, in resistance against RNI and ROI in M...
June 2017: World Journal of Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28546715/unusual-histology-in-hodgkin-s-lymphoma-report-of-an-interesting-case
#13
Sujata Jetley, Shaan Khetrapal, Mukta Pujani, Mohd Jaseem Hassan, Abhinav Jain
Hodgkin's lymphoma has a significant presence in the Indian subcontinent. Microscopically, the hallmark of Hodgkin's lymphoma (HL) is the Hodgkin and Reed-Sternberg (HRS) cell, which is usually surrounded by a cellular infiltrate of non-malignant inflammatory cells that constitute the majority of the tumor tissue. Cells which are known to be histologic mimics of HRS cells include immunoblasts, plasmablasts and rarely dendritic cells. We report a case of a 70-year-old male who presented with fever and lymphadenopathy...
June 2017: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28546673/sharma-s-kissing-fallopian-tubes-sign-a-new-tubal-sign-in-female-genital-tuberculosis
#14
Jai B Sharma
No abstract text is available yet for this article.
June 2017: Journal of Obstetrics and Gynaecology of India
https://www.readbyqxmd.com/read/28546549/restimulation-induced-t-cell-death-through-ntb-a-sap-signaling-pathway-is-impaired-in-tuberculosis-patients-with-depressed-immune-responses
#15
Rodrigo E Hernández Del Pino, Joaquín M Pellegrini, Ana I Rovetta, Delfina Peña, Guadalupe I Álvarez, Agustín Rolandelli, Rosa M Musella, Domingo J Palmero, Alejandro Malbran, Virginia Pasquinelli, Verónica E García
Production of IFN-γ contributes to host defense against Mycobacterium tuberculosis (Mtb) infection. We previously demonstrated that Signaling lymphocytic activation molecule-associated protein (SAP) expression on cells from tuberculosis (TB) patients was inversely correlated with IFN-γ production. Here we first investigated the role of NK, T and B cell antigen (NTB-A)/SAP pathway in the regulation of Th1 response against Mtb. Upon antigen stimulation, NTB-A phosphorylation rapidly increases and afterwards modulates IFN-γ and IL-17 secretion...
May 26, 2017: Immunology and Cell Biology
https://www.readbyqxmd.com/read/28546234/multiplex-pcr-based-detection-of-mycobacterium-tuberculosis-and-mycobacterium-avium-in-a-single-host-one-coloniser-or-dual-infection
#16
Praveen Sharma, Amanjit Bal, Kusum Sharma, Ashish Bhalla
No abstract text is available yet for this article.
May 24, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28546121/prognostic-factors-for-recovery-after-anterior-debridement-bone-grafting-and-posterior-instrumentation-for-lumbar-spinal-tuberculosis
#17
Yuan Yao, Huiyu Zhang, Huan Liu, Zhengfeng Zhang, Yu Tang, Yue Zhou
BACKGROUND: Anterior debridement/bone grafting/posterior instrumentation is a common selection for the treatment of lumbar spinal tuberculosis (LST). To date, no study has focused on the prognostic factors for recovery after this surgery. METHODS: 144 patients experienced anterior debridement/bone grafting/posterior instrumentation for LST were included. The recovery rate based on the Japanese Orthopedic Association (JOA) score was used to assess recovery. The Kaplan-Meier method and Cox regression analysis were used to identify the prognostic factors for recovery postoperatively...
May 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28546104/development-of-a-paediatric-physiologically-based-pharmacokinetic-model-to-assess-the-impact-of-drug-drug-interactions-in-tuberculosis-co-infected-malaria-subjects-a-case-study-with-artemether-lumefantrine-and-the-cyp3a4-inducer-rifampicin
#18
Olusola Olafuyi, Michael Coleman, Raj K S Badhan
The fixed dosed combination of artemether and lumefantrine (AL) is widely used for the treatment of malaria in adults and children in sub-Sahara Africa, with lumefantrine day 7 concentrations being widely used as a marker for clinical efficacy. Both are substrates for CYP3A4 and susceptible to drug-drug interactions (DDIs); indeed, knowledge of the impact of these factors is currently sparse in paediatric population groups. Confounding malaria treatment is the co-infection of patients with tuberculosis. The concomitant treatment of AL with tuberculosis chemotherapy, which includes the CYP3A4 inducer rifampicin, increases the risk of parasite recrudescence and malaria treatment failure...
May 22, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28545939/relationship-between-climatic-factors-and-air-quality-with-tuberculosis-in-the-federal-district-brazil-2003-2012
#19
Fernanda Monteiro de Castro Fernandes, Eder de Souza Martins, Daniella Melo Arnaud Sampaio Pedrosa, Maria do Socorro Nantua Evangelista
INTRODUCTION: Despite the high rate of tuberculosis (TB) indicators in Brazil, the Federal District (FD) shows a low prevalence of the disease. OBJECTIVE: To analyze the relationship between climatic factors and air quality with tuberculosis in the Brazilian Federal District. METHODOLOGY: This was an ecological and descriptive study comparing 3927 new cases of TB registered at the Federal District Tuberculosis Control Program with data from the National Institute of Meteorology, Brazilian Institute of Geography and Statistics, Brazilian Agricultural Research Institute, Brasilia Environmental Institute, and the Federal District Planning Company...
May 22, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28545813/design-synthesis-and-evaluation-of-indole-2-carboxamides-with-pan-anti-mycobacterial-activity
#20
Nicholas D Franz, Juan Manuel Belardinelli, Michael A Kaminski, Louis C Dunn, Vinicius Calado Nogueira de Moura, Michael A Blaha, Dan D Truong, Wei Li, Mary Jackson, E Jeffrey North
Current treatment regimens for non-tuberculous mycobacteria (NTM) and tuberculosis (TB) generally require long duration of therapy with multiple drugs, some of which are broad spectrum antibiotics. Despite some advances in antimicrobial compounds, there remains a need in therapy for antibiotics with specific mycobacterial targets. It has been shown that MmpL3 is an essential transporter required for the translocation of mycolic acids to the mycobacterial cell envelope. Here, we synthesized a series of indole-2-carboxamides that inhibit MmpL3 and have potent pan-activity against mycobacterial species...
May 8, 2017: Bioorganic & Medicinal Chemistry
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