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Pulmonary tuberculosis

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https://www.readbyqxmd.com/read/28813536/tuberculosis-patients-in-an-indian-mega-city-where-do-they-live-and-where-are-they-diagnosed
#1
Ramnath Subbaraman, Beena E Thomas, Senthil Sellappan, Chandra Suresh, Lavanya Jayabal, Savari Lincy, Agnes L Raja, Allison McFall, Sunil Suhas Solomon, Kenneth H Mayer, Soumya Swaminathan
OBJECTIVE: Tuberculosis (TB) is a major source of mortality in urban India, with many structural challenges to optimal care delivery. In the government TB program in Chennai, India's fourth most populous city, there is a 49% gap between the official number of smear-positive TB patients diagnosed and the official number registered in TB treatment within the city in 2014. We hypothesize that this "urban registration gap" is partly due to rural patients temporarily visiting the city for diagnostic evaluation...
2017: PloS One
https://www.readbyqxmd.com/read/28810840/the-association-between-tuberculosis-and-the-development-of-insulin-resistance-in-adults-with-pulmonary-tuberculosis-in-the-western-sub-district-of-the-cape-metropole-region-south-africa-a-combined-cross-sectional-cohort-study
#2
Lauren Philips, Janicke Visser, Daan Nel, Renée Blaauw
BACKGROUND: The existence of a bi-directional relationship between tuberculosis (TB) and insulin resistance (IR)/diabetes has been alluded to in literature. Although diabetes has been linked to increased tuberculosis risk, the relationship between tuberculosis as a causative factor for IR remains unclear. The study aimed to determine if an association existed between tuberculosis and IR development in adults with newly diagnosed pulmonary tuberculosis at baseline. It was additionally aimed to document changes in IR status during TB follow-up periods...
August 15, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28810312/-analysis-of-infection-and-drug-resistance-in-6-107-cases-of-extrapulmonary-tuberculosis-in-chengdu-area
#3
D M Wang, Q F Li, M Zhu, Y H Xu, J Luo, Y J Li, J Zhong, Z J Wu
Objective: To analyze the infection and drug resistance of extrapulmonary tuberculosis, in order to provide useful references for prevention and treatment of tuberculosis (TB). Methods: A total of 6 107 suspected cases of extrapulmonary tuberculosis, including lymph node, pleural, peritoneal, meningeal, urinary tract, and bone tuberculosis, were collected retrospectively from January 2013 to December 2015 in Public Health Clinical Center of Chengdu. There were 4 033 male and 2 074 female patients, and the average age was 37 years...
August 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28809501/microencapsulated-solid-lipid-nanoparticles-as-a-hybrid-platform-for-pulmonary-antibiotic-delivery
#4
Diana P Gaspar, Maria Manuela Gaspar, Carla V Eleutério, Ana Grenha, Mateo Blanco, Lídia M D Gonçalves, Pablo Taboada, António J Almeida, Carmen Remuñán-López
Solid lipid nanoparticles (SLN) containing rifabutin (RFB), with pulmonary administration purposes, were developed through a technique that avoids the use of organic solvents or sonication. To facilitate their pulmonary delivery, the RFB-loaded SLN were included in microspheres of appropriate size using suitable excipients (mannitol and trehalose) through a spray-drying technique. Confocal analysis microscopy showed that microspheres are spherical and that SLN are efficiently microencapsulated and homogeneously distributed throughout the microsphere matrices...
August 15, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28808611/red-snappers-and-red-herrings-pelvic-tuberculosis-causing-elevated-ca-125-and-mimicking-advanced-ovarian-cancer-a-case-report-and-literature-review
#5
Johnnie Alphonse Yates, Olivia Ann Collis, Thanasak Sueblinvong, Tarquin Kamakana Collis
Female genital tuberculosis (FGTB) is a form of extra-pulmonary tuberculosis that has been primarily described in developing countries, where it is an important cause of infertility, ectopic pregnancy, and miscarriage. FGTB is rare in the United States and because its clinical presentation is non-specific and often insidious, FGTB may be misdiagnosed as a gynecologic malignancy or endometriosis. The tendency of tuberculosis to dramatically increase serum CA 125 levels contributes to the potential for FGTB to be mistaken for ovarian cancer in particular...
August 2017: Hawai'i Journal of Medicine & Public Health: a Journal of Asia Pacific Medicine & Public Health
https://www.readbyqxmd.com/read/28807917/bedaquiline-inhibits-the-atp-synthase-in-mycobacterium-abscessus-and-is-effective-in-infected-zebrafish
#6
Christian Dupont, Albertus Viljoen, Sangeeta Thomas, Françoise Roquet-Banères, Jean-Louis Herrmann, Kevin Pethe, Laurent Kremer
Pulmonary infections caused by Mycobacterium abscessus are emerging as a global threat, especially in cystic fibrosis patients. Further intensifying the concern of M. abscessus infection is the recent evidence of human-to-human transmission of the infection. M. abscessus is a naturally multidrug resistant, fast-growing pathogen for which pharmacological options are limited. Repurposing antitubercular drugs represents an attractive option for the development of chemotherapeutic alternatives against M. abscessus infections...
August 14, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28807911/systematic-review-and-meta-analyses-of-the-effect-of-chemotherapy-on-pulmonary-mycobacterium-abscessus-outcomes-and-disease-recurrence
#7
Jotam G Pasipanodya, Deborah Ogbonna, Beatriz E Ferro, Gesham Magombedze, Shashikant Srivastava, Devyani Deshpande, Tawanda Gumbo
Background. In pharmacokinetic/pharmacodynamics models of pulmonary Mycobacterium abscessus complex, the recommended macrolide-containing combination therapy has poor kill rates. However, clinical outcomes are unknown.Methods We searched the literature for studies published between 1990-2017 that reported microbial outcomes in patients treated for pulmonary M. abscessus disease. Good outcome was defined as sustained sputum culture conversion (SSCC) without relapse. Random effects models were used to pool studies and estimate proportions of patients with good outcomes...
August 14, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28806423/new-synthetic-lipid-antigens-for-rapid-serological-diagnosis-of-tuberculosis
#8
Alison Jones, Mark Pitts, Juma'a R Al Dulayymi, James Gibbons, Andrew Ramsay, Delia Goletti, Christopher D Gwenin, Mark S Baird
BACKGROUND: During pulmonary tuberculosis (PTB) antibodies are generated to trehalose esters of mycolic acids which are cell wall lipids of Mycobacterium tuberculosis (Mtb). Attempts have been made to use these complex natural mixtures in serological tests for PTB diagnosis. AIM: The aim of this work was to determine whether a serological test based on a panel of defined individual trehalose esters of characteristic synthetic mycolic acids has improved diagnostic accuracy in distinguishing patients with culture positive PTB from individuals who were Mtb culture negative...
2017: PloS One
https://www.readbyqxmd.com/read/28805776/-diagnostic-and-curative-bronchoscopy-for-purulent-destructive-pulmonary-diseases
#9
T P Pinchuk, O O Yasnogorodsky, Yu V Guryanova, M V Taldykin, A S Kachikin, Yu A Catane
AIM: To assess an efficacy of diagnostic and curative bronchoscopy in patients with purulent-destructive pulmonary diseases. MATERIAL AND METHODS: Diagnosis and treatment of 34 patients with purulent-destructive pulmonary diseases including small-focal destruction (14) and lung abscesses (19) were analyzed. 33 patients underwent diagnostic fibrobronchoscopy (FBS) with brush and transbronchial biopsy. Curative endoscopy included bronchial tree sanation, peribronchial administration of antibiotics (5) and transbronchial drainage of abscess (14)...
2017: Khirurgiia
https://www.readbyqxmd.com/read/28802412/mycobacterium-tuberculosis-sige-mutant-st28-used-as-a-vaccine-induces-protective-immunity-in-the-guinea-pig-model
#10
JoLynn Troudt, Elizabeth Creissen, Linda Izzo, Helle Bielefeldt-Ohmann, Stefano Casonato, Riccardo Manganelli, Angelo A Izzo
With more than 9 million new infections and 1.5 million deaths claimed every year, tuberculosis remains one of the major scourges of humankind. The only vaccine available against this disease, the attenuated strain Mycobacterium bovis, BCG is effective against severe forms of the disease in infants, but scarcely effective in protecting adults from the pulmonary form of the disease, thus not stopping transmission. Consequently, the development of an effective anti-tuberculosis vaccine is a major goal for improving global health...
September 2017: Tuberculosis
https://www.readbyqxmd.com/read/28802411/the-minipig-as-an-animal-model-to-study-mycobacterium-tuberculosis-infection-and-natural-transmission
#11
Laylaa Ramos, Andres Obregon-Henao, Marcela Henao-Tamayo, Richard Bowen, Joan K Lunney, Mercedes Gonzalez-Juarrero
In endemic countries more than 20% of tuberculosis (TB) cases are in infants and children. Current animal models study TB during adulthood but animal models for infant TB are scarce. Here we propose that minipigs can be used as an animal model to study adult, adolescent and infant TB including natural transmission. In these studies, two-month old minipigs (representing infant age in humans) and six-month old minipigs (representing adolescence in humans) were infected via the aerosol route with hyper-virulent clinical strain W-Beijing Mycobacterium tuberculosis (Mtb) HN878 and were monitored for 11 or 36 weeks post-challenge, respectively...
September 2017: Tuberculosis
https://www.readbyqxmd.com/read/28798240/tetraparesia-an-unusual-presentation-of-disseminated-tuberculosis
#12
Filipa Quaresma, Margarida Bentes Jesus
A 48-year-old man with a 4 months history of asthenia, anorexia, 10 kg weight loss and 1 month of hematuria and dysuria was admitted to another hospital for sudden muscular weakness. He was found to have areflexic tetraparesis and was referred to our hospital.On admission, he was bradycardic, tachypneic, with flaccid tetraplegia. Laboratory results showed metabolic acidemia, severe hyperkalemia and hyponatremia, acute renal dysfunction and sterile pyuria. After hyperkalemia correction, the neurological symptoms resolved...
August 10, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28794425/transmission-is-a-noticeable-cause-of-resistance-among-treated-tuberculosis-patients-in-shanghai-china
#13
Chijioke A Nsofor, Qi Jiang, Jie Wu, Mingyu Gan, Qingyun Liu, Tianyu Zuo, Guofeng Zhu, Qian Gao
It is generally believed that drug resistance among treated tuberculosis (TB) patients is as a result of acquired drug resistance due to inappropriate treatment. Previous studies have shown that primary drug resistance caused by transmission also plays a role among treated cases. Differentiating the two types of drug resistance will help in developing appropriate strategies for control of drug resistant tuberculosis. In this study, we tested the hypothesis that drug resistance among treated TB patients is mainly caused by primary resistance rather than acquired resistance...
August 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28794178/potential-of-high-affinity-slow-off-rate-modified-aptamer-somamer-reagents-for-mycobacterium-tuberculosis-proteins-as-tools-for-infection-models-and-diagnostic-applications
#14
Theresa Russell, Louis S Green, Taylor Rice, Nicole A Kruh-Garcia, Karen Dobos, Mary A DeGroote, Thomas Hraha, David G Sterling, Nebojsa Janjic, Urs A Ochsner
Direct pathogen detection in blood to diagnose active tuberculosis (TB) has been difficult, due to low levels of circulating antigens or due to the lack of specific, high-affinity binding reagents and reliable assays with adequate sensitivity. We sought to determine whether slow off-rate modified aptamer (SOMAmer) reagents with sub-nanomolar affinity for M. tuberculosis (Mtb) proteins (antigen 85A, 85B, 85C, GroES, GroEL2, DnaK, CFP10, KAD, CFP2, RplL and Tpx) could be useful to diagnose tuberculosis. When incorporated into the multiplexed, array-based proteomic SOMAscan assay, limits of detection reached the sub-picomolar range in 40% serum...
August 9, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28794177/discovery-and-validation-of-a-six-marker-serum-protein-signature-for-the-diagnosis-of-active-pulmonary-tuberculosis
#15
Mary A De Groote, David G Sterling, Thomas Hraha, Theresa Russell, Louis S Green, Kirsten Wall, Stephan Kraemer, Rachel Ostroff, Nebojsa Janjic, Urs A Ochsner
New non-sputum biomarker tests for active tuberculosis (TB) diagnostics are of highest priority for global TB control. We performed in-depth proteomic analysis using the 4000-plex SOMAscan assay on 1470 serum samples from seven TB-endemic countries. All samples were from patients with symptoms and signs suggestive of active pulmonary TB that were systematically confirmed or ruled-out for TB by culture and clinical follow-up. HIV-coinfection was present in 34%and 22% were sputum smear-negative. Serum protein biomarkers were identified by stability selection using L1-regularized logistic regression and by Kolmogorov-Smirnov (KS) statistics...
August 9, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28794092/optic-disc-swelling-in-a-patient-with-tuberculous-meningitis-a-diagnostic-challenge
#16
Hanis Zuhaimy, Sue Ngein Leow, Suresh K Vasudevan
We discuss the diagnostic challenge in an adult patient presented with purely ocular symptoms diagnosed with tuberculous meningitis (TBM). A 38-year-old woman presented with bilateral painless blurring of vision. There were bilateral sixth cranial nerve palsy and bilateral optic disc swelling. Optic nerve function tests were normal. Patient was lucid with no signs of meningism. Brain imaging were normal. She had a positive Mantoux test, high erythrocyte sedimentation rate but no clinical evidence of active pulmonary tuberculosis infection...
August 9, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28792985/pulmonary-foreign-body-granulomatosis-in-a-chronic-user-of-powder-cocaine
#17
Shruti Khurana, Ankit Chhoda, Sandeep Sahay, Priyanka Pathania
We describe the case of a 33-year-old man, a chronic user of powder cocaine, who presented with dyspnea, fever, night sweats, and significant weight loss. Chest HRCT revealed centrilobular nodules, giving an initial impression of miliary tuberculosis. Therefore, he was started on an empirical, four-drug antituberculosis treatment regimen. Four weeks later, despite the tuberculosis treatment, he continued to have the same symptoms. We then performed transbronchial lung biopsy. Histopathological analysis of the biopsy sample revealed birefringent foreign body granuloma...
August 3, 2017: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/28791993/-morphological-signs-of-inflammatory-activity-in-different-clinical-forms-of-drug-resistant-pulmonary-tuberculosis
#18
A A Elipashev, V O Nikolsky, A S Shprykov
AIM: to determine whether the activity of tuberculous inflammation is associated with different clinical forms of drug-resistant pulmonary tuberculosis. SUBJECTS AND METHODS: The material taken from 310 patients operated on in 2010-2015 were retrospectively examined. The patients underwent economical lung resections of limited extent (typical and atypical ones of up to 3 segments) for circumscribed forms of tuberculosis with bacterial excretion. A study group consisted of 161 (51...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28790995/trehalose-polyphleates-external-cell-wall-lipids-in-mycobacterium-abscessus-are-associated-with-the-formation-of-clumps-with-cording-morphology-which-have-been-associated-with-virulence
#19
Marta Llorens-Fons, Míriam Pérez-Trujillo, Esther Julián, Cecilia Brambilla, Fernando Alcaide, Thomas F Byrd, Marina Luquin
Mycobacterium abscessus is a reemerging pathogen that causes pulmonary diseases similar to tuberculosis, which is caused by Mycobacterium tuberculosis. When grown in agar medium, M. abscessus strains generate rough (R) or smooth colonies (S). R morphotypes are more virulent than S morphotypes. In searching for the virulence factors responsible for this difference, R morphotypes have been found to form large aggregates (clumps) that, after being phagocytozed, result in macrophage death. Furthermore, the aggregates released to the extracellular space by damaged macrophages grow, forming unphagocytosable structures that resemble cords...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28790871/estimating-the-effect-of-lay-knowledge-and-prior-contact-with-pulmonary-tb-patients-on-health-belief-model-in-a-high-risk-pulmonary-tb-transmission-population
#20
Rizqy Amelia Zein, Fendy Suhariadi, Wiwin Hendriani
OBJECTIVE: The research aimed to investigate the effect of lay knowledge of pulmonary tuberculosis (TB) and prior contact with pulmonary TB patients on a health-belief model (HBM) as well as to identify the social determinants that affect lay knowledge. METHODS: Survey research design was conducted, where participants were required to fill in a questionnaire, which measured HBM and lay knowledge of pulmonary TB. Research participants were 500 residents of Semampir, Asemrowo, Bubutan, Pabean Cantian, and Simokerto districts, where the risk of pulmonary TB transmission is higher than other districts in Surabaya...
2017: Psychology Research and Behavior Management
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