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https://www.readbyqxmd.com/read/29161328/use-of-quantiferon%C3%A2-tb-gold-in-tube-culture-supernatants-for-measurement-of-antibody-responses
#1
Simon G Kimuda, Irene Andia-Biraro, Moses Egesa, Bernard S Bagaya, John G Raynes, Jonathan Levin, Alison M Elliott, Stephen Cose
QuantiFERON®-TB Gold in-tube (QFT-GIT) supernatants may be important samples for use in assessment of anti-tuberculosis (TB) antibodies when only limited volumes of blood can be collected and when a combination of antibody and cytokine measurements are required. These analytes, when used together, may also have the potential to differentiate active pulmonary TB (APTB) from latent TB infection (LTBI). However, few studies have explored the use of QFT-GIT supernatants for investigations of antibody responses...
2017: PloS One
https://www.readbyqxmd.com/read/29154891/acute-pain-perception-during-different-sampling-methods-for-respiratory-culture-in-cystic-fibrosis-patients
#2
Hanneke Eyns, Elke De Wachter, Anne Malfroot, Peter Vaes
BACKGROUND: Reliable identification of lower respiratory tract pathogens is crucial in the management of cystic fibrosis (CF). As part of another study (NCT02363764) investigating the bacterial yield of three sampling methods: nasal swabs (NS), cough swabs (CS) and (induced) sputum samples ((I)SS) in both expectorating (EPs) and non-expectorating (NEPs) patients with CF, the present study aimed to explore the prevalence of respiratory culture sampling-related pain as assessed by self-report within a cohort of children and adults...
November 14, 2017: Journal of Pain and Symptom Management
https://www.readbyqxmd.com/read/29154391/the-value-of-microscopic-observation-drug-susceptibility-assay-in-the-diagnosis-of-tuberculosis-and-detection-of-multidrug-resistance
#3
Denİz Sertel Şelale, Meltem Uzun
Inexpensive, rapid, and reliable tests for detecting the presence and drug susceptibility of Mycobacterium tuberculosis complex (MTBC) are urgently needed to control the transmission of tuberculosis. In this study, we aimed to assess the accuracy and speed of the microscopic-observation drug susceptibility (MODS) assay in the identification of MTBC and detection of multidrug resistance. Sputum samples from patients suspected to have tuberculosis were simultaneously tested with MODS and conventional culture [Löwenstein-Jensen (LJ) culture, BACTEC MGIT™ 960 (MGIT) system], and drug susceptibility testing (MGIT system) methods...
November 20, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/29149111/-bilateral-bronchopneumonia-due-to-rothia-mucilaginosa
#4
B De Escalante Yangüela, A Gracia Gutiérrez, B C Gracia Tello, V A Alastrué Del Castaño, E Bueno Juana, S Algárate Cajo
Rothia mucilaginosa (R. mucilaginosa), formerly named Stomatococcus mucilaginosus, is a facultatively anaerobic, encapsulated gram-positive coccus, which forms part of the normal oropharyngeal and is rarely considered to be a pathogen in immunocompetent patients, although it can produce, on rare occasions, serious infections like bacteremia, endocarditis and respiratory infections; such as pneumonia, pleural empyema or superinfection of bronchiectasis. We present the case of a 74-year-old male diagnosed with right basal pneumonia of torpid evolution with a poor initial response to different antibiotics, with clinical and radiological worsening and the appearance of bilateral bronchopneumonia with pseudonodular images...
November 17, 2017: Anales del Sistema Sanitario de Navarra
https://www.readbyqxmd.com/read/29142744/-who-has-to-do-it-at-the-end-of-the-day-programme-officials-or-hospital-authorities-airborne-infection-control-at-drug-resistant-tuberculosis-dr-tb-centres-of-karnataka-india-a-mixed-methods-study
#5
Kibballi Madhukeshwar Akshaya, Hemant Deepak Shewade, Ottapura Prabhakaran Aslesh, Sharath Burugina Nagaraja, Abhay Subashrao Nirgude, Anil Singarajipura, Anil G Jacob
Background: Drug resistant tuberculosis (DR-TB) centers admit patients with DR-TB for initiation of treatment and thereby concentrate the patients under one setting. It becomes imperative to assess the compliance of DR-TB centres to national airborne infection control (AIC) guidelines and explore the provider perspectives into reasons for unsatisfactory compliance. Methods: This mixed methods study (triangulation design) was carried out across all the six DR-TB centers of Karnataka state, India, between November 2016 and April 2017...
2017: Antimicrobial Resistance and Infection Control
https://www.readbyqxmd.com/read/29138549/inflammation-and-chronic-colonization-of-haemophilus-influenzae-in-sputum-in-copd-patients-related-to-the-degree-of-emphysema-and-bronchiectasis-in-high-resolution-computed-tomography
#6
Ellen Tufvesson, Hanna Markstad, Gracijela Bozovic, Marie Ekberg, Leif Bjermer
The presence of bacteria in the lower airways in COPD results in inflammation, further airway structural damage, and might lead to repeated exacerbations. We have previously shown that chronic colonization of Haemophilus influenzae during stable disease is related to increased inflammation, and we now aimed to relate previous findings of bacterial colonization and inflammation to the degree of radiological findings of bronchiectasis and emphysema. Thirty-nine patients with COPD were included in their stable state, and a high-resolution computed tomography of the lung was performed...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29138284/rapid-diagnosis-of-pulmonary-tuberculosis-and-detection-of-drug-resistance-by-combined-simultaneous-amplification-testing-and-reverse-dot-blot
#7
Yiwen Chen, Lahong Zhang, Liquan Hong, Xian Luo, Juping Chen, Leiming Tang, Jiahuan Chen, Xia Liu, Zhaojun Chen
AIMS: Making a correct and rapid diagnosis is essential for managing pulmonary tuberculosis (PTB), particularly multidrug-resistant tuberculosis. We aimed to evaluate the efficacy of the combination of simultaneous amplification testing (SAT) and reverse dot blot (RDB) for the rapid detection of Mycobacterium tuberculosis (MTB) and drug-resistant mutants in respiratory samples. METHODS: 225 suspected PTB and 32 non-TB pulmonary disease samples were collected. All sputum samples were sent for acid-fast bacilli smear, SAT, culture and drug susceptibility testing (DST) by the BACTEC(TM) MGIT(TM) 960 system...
November 14, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29137108/tuberculosis-presenting-as-isolated-bronchonodal-fistula-in-a-patient-with-systemic-lupus-erythematosus-case-report
#8
Kyungsoo Bae, Kyung Nyeo Jeon, Ho Cheol Kim, Young Sun Suh, Gi Dong Lee, Ju-Young Kim, Dae Hyun Song
RATIONALE: Lymph node is a preferred site for extrapulmonary tuberculosis (TB). In the thorax, mediastinal tuberculous lymph nodes can erode adjacent structures such as heart, aorta, and esophagus, forming fistula, and causing fatal consequences. However, tuberculous bronchonodal fistula as a complication of lymph node TB in adults is rarely known in terms of imaging or clinical findings. Here, a case of isolated tuberculous bronchonodal fistula appearing as the first presentation of TB in a 74-year-old male with systemic lupus erythematosus (SLE) is reported...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29131662/isoniazid-monoresistance-and-rate-of-culture-conversion-among-confirmed-tuberculosis-patients-in-the-state-of-georgia-2009-2014
#9
Argita D Salindri, Rose-Marie F Sales, Lauren DiMiceli, Marcos C Schechter, Russell R Kempker, Matthew J Magee
RATIONALE: Isoniazid-monoresistant tuberculosis (INH-monoresistant TB) is the most common drug-resistant TB type in the US; however, its impact on TB treatment outcomes is not clear. OBJECTIVES: This study aims to understand: 1) factors associated with INH-monoresistant TB and 2) the association between INH-monoresistance and response to TB treatment. METHODS: We studied all patients with TB aged ≥15 years reported to the Georgia State Electronic Notifiable Disease Surveillance System (SENDSS) from 2009-2014...
November 13, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29123880/efficacy-of-direct-hemoperfusion-with-a-polymyxin-b-immobilized-fiber-column-in-miliary-tuberculosis
#10
Yasumasa Kawano, Ryotaro Nagashima, Shinichi Morimoto, Yoshito Izutani, Reiko Yamasaki, Takeshi Nishida, Mitsutoshi Iwaasa, Hiroyasu Ishikura
Case: A 75-year-old woman presented with a 10-day history of intermittent fever, general fatigue, and progressive dyspnea. Although she had a low PaO2/FIO2 ratio, the cause of acute respiratory distress syndrome was not clear until day 9 in hospital. Outcome: We treated the patient with direct hemoperfusion with a polymyxin B-immobilized fiber column incidentally; the PaO2/FIO2 ratio improved following this therapy. Acid-fast bacilli, which were not seen in the sputum on admission, were detected in cultures from sputum, urine, bone marrow, liver biopsy, and blood samples, with a real-time polymerase chain reaction assay confirming tuberculosis...
July 2017: Acute Medicine & Surgery
https://www.readbyqxmd.com/read/29113816/hdac2-suppresses-il17a-mediated-airway-remodeling-in-human-and-experimental-modeling-of-copd
#11
Tianwen Lai, Baoping Tian, Chao Cao, Yue Hu, Jiesen Zhou, Yong Wang, Yanping Wu, Zhouyang Li, Xuchen Xu, Min Zhang, Feng Xu, Yuan Cao, Min Chen, Dong Wu, Bin Wu, Chen Dong, Wen Li, Songmin Ying, Zhihua Chen, Huahao Shen
BACKGROUND: Airway remodeling is a central feature of chronic obstructive pulmonary disease (COPD), but the mechanisms underlying its development have not been fully elucidated. OBJECTIVE: To determine whether histone deacetylase (HDAC) 2 protects against cigarette smoke (CS)-induced airway remodeling through IL17A-dependent mechanisms. METHODS: Sputum samples and lung tissues were obtained from control subjects and patients with COPD. The relationships between HDAC2, IL17A, and airway remodeling were investigated...
November 4, 2017: Chest
https://www.readbyqxmd.com/read/29110871/prevalence-of-rifampicin-resistant-mycobacterium-tuberculosis-among-human-immunodeficiency-virus-seropositive-patients-and-their-treatment-outcomes
#12
C K Vidyaraj, A Chitra, S Smita, M Muthuraj, S Govindarajan, B Usharani, S Anbazhagi
Multidrug resistant (MDR) and extensively drug resistant tuberculosis (TB) are a threat to the TB control programs in developing countries, and the situation is worsened by the human immunodeficiency virus (HIV) pandemic. This study was performed to correlate treatment outcome with the resistance patterns in HIV-seropositive patients coinfected with pulmonary TB. Sputum specimens were collected from 1643 HIV-seropositive patients and subjected to microscopy and liquid culture for TB. The smear- and culture-positive Mycobacterium tuberculosis isolates were subjected to Genotype MTBDRplus assay version 2...
December 2017: Journal of Epidemiology and Global Health
https://www.readbyqxmd.com/read/29099103/detecci%C3%A3-n-molecular-de-especies-de-candida-en-espec%C3%A3-menes-de-pacientes-hospitalizados
#13
José Luis Camacho-Cardoso, María Ángeles Martínez-Rivera, Patricia Manzano-Gayosso, Luis Javier Méndez-Tovar, Rubén López-Martínez, Francisca Hernández-Hernández
Objective: To identify the most frequent Candida species in specimens from patients hospitalized in different medical centers of Mexico City, with suspected fungal infection. Methods: Specimens were grown on Sabouraud dextrose agar at 28°C for 72 h. In addition, DNA was extracted. Isolates were grown on CHROMagar Candida™, at 37°C for 48 h. The molecular identification was performed by polymerase chain reaction (PCR) using primers specific for four species. Results: Eighty one specimens were processed and included: bronchial lavage, pleural, cerebrospinal, peritoneal, ascites and bile fluids; blood, sputum, bone marrow, oro-tracheal cannula and ganglion...
2017: Gaceta Médica de México
https://www.readbyqxmd.com/read/29089034/rapid-diagnosis-of-new-and-relapse-tuberculosis-by-quantification-of-a-circulating-antigen-in-hiv-infected-adults-in-the-greater-houston-metropolitan-area
#14
Jia Fan, Hedong Zhang, Duc T Nguyen, Christopher J Lyon, Charles D Mitchell, Zhen Zhao, Edward A Graviss, Ye Hu
BACKGROUND: HIV-associated immune defects inhibit tuberculosis (TB) diagnosis, promote development of extrapulmonary TB and paucibacillary pulmonary TB cases with atypical radiographic features, and increase TB relapse rates. We therefore assessed the diagnostic performance of a novel assay that directly quantitates serum levels of the Mycobacterium tuberculosis (Mtb) virulence factor 10-kDa culture filtrate protein (CFP-10) to overcome limitations associated with detecting Mtb bacilli in sputum or tissue biopsies...
November 1, 2017: BMC Medicine
https://www.readbyqxmd.com/read/29081342/role-of-diabetes-mellitus-on-treatment-effects-in-drug-susceptible-initial-pulmonary-tuberculosis-patients-in-china
#15
Yan Ma, Mai Ling Huang, Tao Li, Jian DU, Wei Shu, Shi Heng Xie, Hong Hong Wang, Guo Feng Zhu, Shou Yong Tan, Yan Yong Fu, Li Ping Ma, Lian Ying Zhang, Fei Ying Liu, Dai Yu Hu, Yan Ling Zhang, Xiang Qun Li, Yu Hong Liu, Liang Li
We assessed the role of diabetes mellitus (DM) on treatment effects in drug-susceptible initial pulmonary tuberculosis (PTB) patients. A prospective study was conducted in eight provinces of China from October 2008 to December 2010. We enrolled 1,313 confirmed drug-susceptible initial PTB patients, and all subjects received the treatment regimen (2H3R3E3Z3/4H3R3) as recommended by the national guidelines. Of the 1,313 PTB patients, 157 (11.9%) had DM; these patients had more sputum smear-positive rates at the end of the second month [adjusted odds ratios (aOR) 2...
September 2017: Biomedical and Environmental Sciences: BES
https://www.readbyqxmd.com/read/29074542/rv568-a-narrow-spectrum-kinase-inhibitor-with-p38-mapk-%C3%AE-and-%C3%AE-selectivity-suppresses-copd-inflammation
#16
Catherine E Charron, Paul Russell, Kazuhiro Ito, Simon Lea, Yasuo Kizawa, Charlie Brindley, Dave Singh
Novel anti-inflammatory approaches targeting chronically activated kinase pathways in chronic obstructive pulmonary disease (COPD) are needed. We evaluated RV568, a p38 mitogen-activated protein kinase-α and -γ and SRC family kinase inhibitor, in cellular and in vivo models relevant to COPD and examined its safety and efficacy in COPD patients.The anti-inflammatory activities of RV568 were tested in primary cultured monocytes, macrophages and bronchial epithelial cells and in vivo in lipopolysaccharide and cigarette smoke-exposed murine models...
October 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29073910/spot-sputum-samples-are-at-least-as-good-as-early-morning-samples-for-identifying-mycobacterium-tuberculosis
#17
Michael E Murphy, Patrick P J Phillips, Carl M Mendel, Emily Bongard, Anna L C Bateson, Robert Hunt, Saraswathi Murthy, Kasha P Singh, Michael Brown, Angela M Crook, Andrew J Nunn, Sarah K Meredith, Marc Lipman, Timothy D McHugh, Stephen H Gillespie
BACKGROUND: The use of early morning sputum samples (EMS) to diagnose tuberculosis (TB) can result in treatment delay given the need for the patient to return to the clinic with the EMS, increasing the chance of patients being lost during their diagnostic workup. However, there is little evidence to support the superiority of EMS over spot sputum samples. In this new analysis of the REMoxTB study, we compare the diagnostic accuracy of EMS with spot samples for identifying Mycobacterium tuberculosis pre- and post-treatment...
October 27, 2017: BMC Medicine
https://www.readbyqxmd.com/read/29073317/the-diagnostic-yield-of-noninvasive-microbiologic-sputum-sampling-in-a-cohort-of-patients-with-clinically-diagnosed-hospital-acquired-pneumonia
#18
Elliot L Naidus, Mary T Lasalvia, Edward R Marcantonio, Shoshana J Herzig
The clinical predictors of positive sputum culture have not been previously reported in hospital-acquired pneumonia (HAP), and data on yield of sputum culture in this setting are scant. Current Infectious Disease Society of America guidelines for HAP recommend noninvasive sputum sampling, though the data for this practice are limited. We assessed the yield of sputum culture in HAP cases at an academic medical center from January 2007 to July 2013. HAP cases were identifi ed by International Classifi cation of Diseases, Ninth Revision-Clinical Modifi cation codes for bacterial pneumonia and all cases were validated by chart review...
October 18, 2017: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/29073309/thinking-outside-the-checkbox
#19
Maki Kanamori, Gurpreet Dhaliwal, Masami Matsumura, Bradley Monash
A 34-year-old, previously healthy Japanese man developed a dry cough. He did not have dyspnea, nasal discharge, sore throat, facial pain, nasal congestion, or postnasal drip. His symptoms persisted despite several courses of antibiotics (from different physicians), including clarithromycin, minocycline, and levofl oxacin. A chest x-ray after 2 months of symptoms and a noncontrast chest computed tomography (CT) after 4 months of symptoms were normal, and bacterial and mycobacterial sputum cultures were sterile...
October 18, 2017: Journal of Hospital Medicine: An Official Publication of the Society of Hospital Medicine
https://www.readbyqxmd.com/read/29069496/interim-outcomes-of-delamanid-for-the-treatment-of-mdr-and-xdr-tb-in-south-korea
#20
Jeongha Mok, Hyungseok Kang, Soo Hee Hwang, Jin Su Park, Bohyoung Kang, Taehoon Lee, Won-Jung Koh, Jae-Joon Yim, Doosoo Jeon
Objectives: Delamanid is a new anti-TB drug, but few data exist on its use outside clinical trials. The purpose of this study was to evaluate the efficacy as well as the safety and tolerability of a delamanid-containing regimen for 24 weeks in the treatment of MDR- and XDR-TB. Methods: We performed a retrospective cohort study among patients with MDR/XDR-TB who were treated with a delamanid-containing regimen in seven hospitals in South Korea. Results: A total of 32 patients with MDR-TB, of which 6 (18...
October 23, 2017: Journal of Antimicrobial Chemotherapy
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