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https://www.readbyqxmd.com/read/28318196/-paradoxical-reaction-to-antituberculosis-treatment-in-an-immunocompetent-girl-with-pulmonary-tuberculosis
#1
Ignacio Ruiz Del Olmo Izuzquiza, Claudia Orden Rueda, Laura Ochoa Gómez, Nuria Clavero Montañés, Enrique Berdún Chéliz, Carmelo Guerrero Laleona
Paradoxical reaction to antituberculosis treatment is rare in paediatric population. We report a 9-year-old girl with high fever and productive cough for the last three weeks. Tuberculine test and Quantiferon were positive, erythrocyte sedimentation rate was 64 mm/h, culture and polymerase chain reaction for M. tuberculosis negative, and chest X ray showed a widened right mediastinum. Tuberculosis was diagnosed, therefore treatment with standard doses of rifampicin, isoniazid, pyrazinamide and ethambutol was started...
April 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28303384/spinopelvic-parameter-changes-and-low-back-pain-improvement-due-to-femoral-neck-anteversion-in-patients-with-severe-unilateral-primary-hip-osteoarthritis-undergoing-total-hip-replacement
#2
Andrea Piazzolla, Giuseppe Solarino, Davide Bizzoca, Viola Montemurro, Pedro Berjano, Claudio Lamartina, Biagio Moretti
PURPOSE: The study of the interrelation between hip and spine disorders is gaining increasing importance in the last years, but the link between Hip Osteoarthritis (HOA) and Low Back Pain (LBP) remains still unclear. Aim of the study is to assess the relationship between Femoral Neck Anteversion (FNA), LBP, and spinopelvic parameters in patients undergoing Total Hip Replacement (THR) for unilateral severe primary HOA. MATERIALS AND METHODS: 91 patients were recruited...
March 16, 2017: European Spine Journal
https://www.readbyqxmd.com/read/28302234/tuberculous-dactylitis-with-concomitant-thyroid-involvement-a-rare-presentation-of-childhood-tuberculosis
#3
Sobia Qamar, Farrah Naz, Samia Naz, Iftikhar Ejaz
Extrapulmonary tuberculosis rarely presents as thyroid involvement along with other manifestations, and poses a diagnostic challenge on account of paucibacillary nature of disease. In general, the diagnosis of tuberculosis is based on epidemiological risk factors, clinical features, imaging studies, in addition to a positive skin testing or Interferon Gamma Release Assay (IGRA). A 14-year boy presented with history of fever and weight loss for one year. On examination, he had painful swelling of fingers and toes along with a painless thyroid nodule and squint...
March 2017: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/28298445/the-structure-and-function-of-mycobacterium-tuberculosis-mazf-mt6-provides-insights-into-conserved-features-of-mazf-endonucleases
#4
Eric D Hoffer, Stacey J Miles, Christine M Dunham
Toxin-antitoxin systems are ubiquitous in prokaryotic and archaea genomes and regulate growth in response to stress. E. coli contains at least 36 putative toxin-antitoxin gene pairs, and some pathogens such as Mycobacterium tuberculosis (Mtb) have over 90 toxin-antitoxin operons. E. coli MazF cleaves free mRNA after encountering stress and nine Mtb MazF family members cleave mRNA, tRNA, or rRNA. Moreover, Mtb MazF-mt6 cleaves 23S rRNA Helix 70 to inhibit protein synthesis. The overall tertiary folds of these MazFs are predicted to be similar, therefore it is unclear how they recognize structurally distinct RNAs...
March 15, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28292982/antibiotic-capture-by-bacterial-lipocalins-uncovers-an-extracellular-mechanism-of-intrinsic-antibiotic-resistance
#5
Omar M El-Halfawy, Javier Klett, Rebecca J Ingram, Slade A Loutet, Michael E P Murphy, Sonsoles Martín-Santamaría, Miguel A Valvano
The potential for microbes to overcome antibiotics of different classes before they reach bacterial cells is largely unexplored. Here we show that a soluble bacterial lipocalin produced by Burkholderia cenocepacia upon exposure to sublethal antibiotic concentrations increases resistance to diverse antibiotics in vitro and in vivo These phenotypes were recapitulated by heterologous expression in B. cenocepacia of lipocalin genes from Pseudomonas aeruginosa, Mycobacterium tuberculosis, and methicillin-resistant Staphylococcus aureus Purified lipocalin bound different classes of bactericidal antibiotics and contributed to bacterial survival in vivo Experimental and X-ray crystal structure-guided computational studies revealed that lipocalins counteract antibiotic action by capturing antibiotics in the extracellular space...
March 14, 2017: MBio
https://www.readbyqxmd.com/read/28287147/radiation-associated-circulatory-disease-mortality-in-a-pooled-analysis-of-77-275-patients-from-the-massachusetts-and-canadian-tuberculosis-fluoroscopy-cohorts
#6
Van Tran, Lydia B Zablotska, Alina V Brenner, Mark P Little
High-dose ionising radiation is associated with circulatory disease. Risks associated with lower-dose (<0.5 Gy) exposures remain unclear, with little information on risk modification by age at exposure, years since exposure or dose-rate. Tuberculosis patients in Canada and Massachusetts received multiple diagnostic x-ray fluoroscopic exposures, over a wide range of ages, many at doses <0.5 Gy. We evaluated risks of circulatory-disease mortality associated with <0.5 Gy radiation exposure in a pooled cohort of 63,707 patients in Canada and 13,568 patients in Massachusetts...
March 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28267891/design-synthesis-and-in-vitro-anti-tuberculosis-activity-of-benzo-6-7-cyclohepta-1-2-b-pyridine-1-3-4-oxadiazole-derivatives
#7
Yasodakrishna Sajja, Sowmya Vanguru, Hanmanth Reddy Vulupala, Lingaiah Nagarapu, Perumal Yogeswari, Dharmarajan Sriram, Jagadeesh Babu Nanubolu
A new anti-tubercular agents, benzo[6,7]cyclohepta[1,2-b]pyridine -1,3,4- oxadiazole hybrids (6a-o) have been designed and synthesized involving oxidative cyclization of hydrazones by use of di(acetoxy)iodobenzene (DIB) and characterized by IR,(1) H NMR,(13) C NMR, HRMS and further confirmed by X-ray analysis. All the newly synthesized compounds 4a-o evaluated for their in vitro anti-mycobacterial activity against Mycobacterium tuberculosis H37Rv (ATCC27294). Among the compounds tested, the compounds 4o (MIC: 1...
March 7, 2017: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/28264670/examining-the-quality-of-childhood-tuberculosis-diagnosis-in-cambodia-a-cross-sectional-study
#8
Julia B Frieze, Rajendra-Prasad Yadav, Khann Sokhan, Song Ngak, Team Bak Khim
BACKGROUND: Cambodia is one of the 22 countries with the highest TB burden. While childhood TB is estimated to make up 10-20% of total TB cases in high-burden settings, this proportion ranges from 1.3 to 39.4% throughout Cambodia's provinces, suggesting potential under- and over-diagnosis of childhood TB, subnationally. The proportion of case notifications classified as extrapulmonary TB out of total TB case notifications in children is 87%, greatly exceeding the expected global range of 20-30%...
March 6, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28261295/pretreatment-neutrophil-to-lymphocyte-ratio-in-peripheral-blood-was-associated-with-pulmonary-tuberculosis-retreatment
#9
Yongmei Yin, Shougang Kuai, Jun Liu, YingYing Zhang, Zhongbao Shan, Lan Gu, Qiusheng Huang, Hao Pei, Jun Wang
INTRODUCTION: The neutrophil-to-lymphocyte ratio (NLR) is a readily available biomarker associated with recurrence and survival in various diseases. The objective of this study was to investigate the relationship between NLR and pulmonary tuberculosis (PTB) retreatment. MATERIAL AND METHODS: This was a case-control study that included 306 newly diagnosed cases of PTB in the clinical database of the Infectious Hospital of Wuxi from December 2009 to December 2011...
March 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28257424/symptom-screening-rules-to-identify-active-pulmonary-tuberculosis-findings-from-the-zambian-south-african-tuberculosis-and-hiv-aids-reduction-zamstar-trial-prevalence-surveys
#10
M M Claassens, C van Schalkwyk, S Floyd, H Ayles, N Beyers
BACKGROUND: High tuberculosis (TB) burden countries should consider systematic screening among adults in the general population. We identified symptom screening rules to be used in addition to cough ≥2 weeks, in a context where X-ray screening is not feasible, aiming to increase the sensitivity of screening while achieving a specificity of ≥85%. METHODS: We used 2010 Zambia South Africa Tuberculosis and HIV/AIDS Reduction (ZAMSTAR) survey data: a South African (SA) training dataset, a SA testing dataset for internal validation and a Zambian dataset for external validation...
2017: PloS One
https://www.readbyqxmd.com/read/28250678/spirometry-findings-among-drug-users-in-the-indonesian-national-narcotics-and-illicit-drug-bureau-rehabilitation-center
#11
Erlang Samoedro, Faisal Yunus, Budhi Antariksa, Fariz Nurwidya
BACKGROUND: The increasing prevalence of drug user in Indonesia is affecting the health sectors. The lungs health were affected by the use of the illicit drug. However, lung function among drug users is still unclear. METHODS: This descriptive-analytic study involves 144 drug users who met the inclusion criteria. Chest X-ray was performed to identify the subject with pulmonary tuberculosis to exclude from the study. Subjects were then undergone spirometry test and interviewed using questionnaires...
January 2017: Journal of Natural Science, Biology, and Medicine
https://www.readbyqxmd.com/read/28248043/-clinical-and-morphological-parallels-in-the-validation-of-surgical-treatment-of-nephrotuberculosi
#12
B I Novikov, S N Skornyakov, R B Berdnikov, A V Savelev
AIM: To Study clinical and morphological variants of kidney tuberculosis (KTB), for grounding a tactics of surgical treatment. MATERIALS AND METHODS: There were 107 examined patients (patients with cavitary lesions of kidneys: cavernous and multi-cavernous), operated in different phases of KTB. There were 56 men (52,3%) and women - 51(47,7%). The mean age of patients was 57,6 years (23-84 years). All the patients had a complex examination, including X-ray and ultrasound investigations, computer tomography ( was performed selectively), bacteriological examinations of urine and morphological examinations of removed kidneys or their parts...
December 2016: Urologii︠a︡
https://www.readbyqxmd.com/read/28225341/patterns-of-drug-resistance-among-patients-with-tuberculous-pleural-effusion-in-greece
#13
V Anastasakos, V Skouras, C Moschos, S Tsikrika, S Karabela, I Marinou, E Vogiatzakis, K Konstantinou, A Papavasiliou, I Kalomenidis
SETTING: Data on the relationship between pleural tuberculosis (TB) and anti-tuberculosis drug resistance are scarce. OBJECTIVE: To determine the patterns of drug resistance among pleural Mycobacterium tuberculosis isolates in Greece and the incidence of tuberculous pleural effusion (TPE) among patients with multidrug-resistant (MDR) or extensively drug-resistant (XDR) pulmonary TB. DESIGN: Drug susceptibility testing (DST) results recorded in the database of the National Reference Centre for Tuberculosis in Athens, Greece, over a 9-year period (2003-2011) were reviewed...
March 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28214275/detection-of-pneumocystis-jirovecii-by-nested-pcr-in-hiv-negative-patients-with-pulmonary-disease
#14
Cristina Rodrigues Santos, Ângela M de Assis, Edson A Luz, Luzia Lyra, Ivan F Toro, José Claudio C Seabra, Dira H Daldin, Tathiane U Marcalto, Marcos T Galasso, Ronaldo F Macedo, Angélica Z Schreiber, Francisco H Aoki
BACKGROUND: Nested PCR can be used to determine the status of Pneumocystis jirovecii infection in other lung diseases. AIMS: This study sought to detect a target DNA fragment (mitochondrial large subunit rRNA or mtL SUrRNA) of P. jirovecii in patients with lung disease who underwent bronchoscopy with collection of bronchoalveolar lavage (BAL). METHODS: The results from toluidine blue staining were compared with those obtained using molecular methods that included an "in house" DNA extraction procedure, PCR and nested PCR...
February 14, 2017: Revista Iberoamericana de Micología
https://www.readbyqxmd.com/read/28208927/tuberculosis-of-glans-penis-a-rare-presentation
#15
C Gangalakshmi, Sankaramahalingam
Tuberculosis (TB) of penis is a very rare entity, even in developing countries. It may present as primary or secondary to Pulmonary TB (PTB). Penile TB mimics carcinoma penis, granulomatous penile ulcer, genital herpes simplex, granuloma inguinale and HIV infection. We, hereby, present the case of a 57-year-old male patient who presented to us with ulcerative growth over glans penis and was clinically diagnosed as carcinoma penis, however biopsy of the lesion showed evidence of tuberculosis which was supported by chest X-ray...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28185620/pulmonary-tuberculosis
#16
Sarah M Lyon, Milton D Rossman
This review on pulmonary tuberculosis includes an introduction that describes how the lung is the portal of entry for the tuberculosis bacilli to enter the body and then spread to the rest of the body. The symptoms and signs of both primary and reactivation tuberculosis are described. Routine laboratory tests are rarely helpful for making the diagnosis of tuberculosis. The differences between the chest X ray in primary and reactivation tuberculosis is also described. The chest computed tomography appearance in primary and reactivation tuberculosis is also described...
January 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28170135/diagnostic-potential-of-interferon-gamma-release-assay-to-detect-latent-tuberculosis-infection-in-kidney-transplant-recipients
#17
Jameela Edathodu, Bright Varghese, Abdulrahman A Alrajhi, Mohammed Shoukri, Ahmad Nazmi, Hazem Elgamal, Hassan Aleid, Fahad Alrabiah, Attia Ashraff, Ihab Mahmoud, Sahal Al-Hajoj
BACKGROUND: Latent tuberculosis (TB) infection (LTBI) is screened by using clinical assessment, tuberculin skin test (TST), chest radiography, and recently by interferon-gamma release assays (IGRA). The objective of this study was to evaluate the diagnostic potential of QuantiFERON(®) -TB Gold In-Tube test (QFT) for diagnosing LTBI in patients planned for kidney transplantation. METHODS: All adult patients with end-stage renal disease, evaluated for kidney transplantation in a referral center from August 2008 till May 2013, were enrolled, after consenting in a prospective, observational, non-interventional study...
February 7, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28162798/-endobronchial-tuberculosis
#18
E Manal, Z Nahid, B Hanane, Y Najiba
BACKGROUND/AIM: The endobronchial tuberculosis (EBTB) is an uncommon type of tuberculosis. The respiratory symptoms in EBTB are usually nonspecific and misleading. The aim of the study is to determine the clinical features and diagnostic aspects of EBTB. PATIENTS AND METHODS: Twenty-eight cases of endobronchial tuberculosis collected from January 2009 to October 2015. RESULTS: EBTB was found in 16 females and 12 males. The mean age was 48 years...
February 2, 2017: Revue de Pneumologie Clinique
https://www.readbyqxmd.com/read/28157425/clinical-features-and-prognostic-factors-in-presumed-ocular-tuberculosis
#19
Cristhian A Urzua, Yrbani Lantigua, Sergio Abuauad, Paulina Liberman, Osvaldo Berger, Pablo Sabat, Victor Velasquez, Enzo Castiglione, Margarita Calonge
PURPOSE: To characterize the clinical features in patients with presumed ocular tuberculosis (TB) and determine prognostic factors of visual outcomes and complications in this disease. MATERIAL AND METHODS: Retrospective case series of 35 patients (29 females, 6 males) with presumed ocular TB from referral centers in Chile and Spain between 2002 and 2012. Medical records were reviewed, and data regarding clinical features, complications, best-corrected visual acuity (BCVA), duration of disease, extraocular manifestations, and therapy were retrieved...
February 3, 2017: Current Eye Research
https://www.readbyqxmd.com/read/28157125/planarity-of-benzoylthiocarbazate-tuberculostatics-iii-diesters-of-3-2-hydroxybenzoyl-dithiocarbazic-acid
#20
Małgorzata Szczesio, Andrzej Olczak, Ida Mazerant, Katarzyna Gobis, Henryk Foks, Marek L Główka
Searches for new tuberculostatic agents are important considering the occurrence of drug-resistant strains of Mycobacterium tuberculosis. The structures of three new potentially tuberculostatic compounds, namely isopropyl methyl (2-hydroxybenzoyl)carbonohydrazonodithioate, C12H16N2O2S2, (Z)-benzyl methyl (2-hydroxybenzoyl)carbonohydrazonodithioate, C16H16N2O2S2, and dibenzyl (2-hydroxybenzoyl)carbonohydrazonodithioate propan-2-ol monosolvate, C22H20N2O2S2·C3H8O, were determined by X-ray diffraction. The mutual orientation of the three main fragments of the compounds, namely an aromatic ring, a dithioester group and a hydrazide group, can influence the biological activity of the compounds...
February 1, 2017: Acta Crystallographica. Section C, Structural Chemistry
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