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https://www.readbyqxmd.com/read/29456392/chest-x-ray-findings-comparison-between-multi-drug-resistant-tuberculosis-and-drug-sensitive-tuberculosis
#1
Aziza Ghanie Icksan, Martin Raja Sonang Napitupulu, Mohamad Arifin Nawas, Fariz Nurwidya
Background: Imaging has a big role in tuberculosis (TB) diagnosis and chest X-ray is preferable because it is available in primary health care and can point out the location, area, and morphology of lesions, such as cavity, consolidation, pleural effusions, and fibrosis. We aimed to compare the chest X-ray findings in multi-drug resistant TB (MDR-TB) and in drug-sensitive TB (DS-TB) cases. Methods: This is a retrospective cross-sectional study which compares chest X-ray findings of two groups of patients, involving 183 DS-TB patients and 183 MDR-TB patients...
January 2018: Journal of Natural Science, Biology, and Medicine
https://www.readbyqxmd.com/read/29442397/tuberculin-skin-test-versus-interferon-gamma-release-assay-in-refugee-children-a-retrospective-cohort-study
#2
Chris Elliot, Ben Marais, Phoebe Williams, Paul Joshua, Sherri Towle, Graham Hart, Karen Zwi
AIM: The aim of this study was to assist clinicians evaluating refugee children for latent tuberculosis infection (LTBI) by comparing paired tuberculin skin test (TST) and Quantiferon Gold In-Tube (QGIT) test results with clinical management decisions and follow-up data in a large cohort of newly arrived refugee children. METHODS: This was a retrospective analysis of all refugee children (<15 years of age) evaluated for LTBI with both TST and interferon-γ release assay between 2007 and 2010 in the Illawarra-Shoalhaven region of New South Wales, Australia...
February 14, 2018: Journal of Paediatrics and Child Health
https://www.readbyqxmd.com/read/29433925/synthesis-antimicrobial-activity-and-acid-dissociation-constants-of-methyl-5-5-diphenyl-1-thiazol-2-yl-pyrrolidine-2-carboxylate-derivatives
#3
Yahya Nural, Muge Gemili, Mahmut Ulger, Hayati Sari, Laurens M De Coen, Ertan Sahin
In this study, a series of polysubstituted methyl 5,5-diphenyl-1-(thiazol-2-yl)pyrrolidine-2-carboxylate derivatives were designed and synthesized by the cyclization reaction of methyl 1-(benzoylcarbamothioyl)-5,5-diphenylpyrrolidine-2-carboxylates and 2-bromo-1-(4-substituted phenyl)ethanones in 70-96% yield. The starting pyrrolidine derivatives were synthesized via a 1,3-dipolar cycloaddition reaction in 83-88% yield. The stereochemistry of one of these methyl 5,5-diphenyl-1-(thiazol-2-yl)pyrrolidine-2-carboxylate derivatives was characterized by a single crystal X-ray diffraction study and the acid dissociation constants of these compounds were determined...
February 9, 2018: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29427823/contribution-of-diagnostic-tests-for-the-etiological-assessment-of-uveitis-data-from-the-ulisse-study-uveitis-clinical-and-medicoeconomic-evaluation-of-a-standardized-strategy-of-the-etiological-diagnosis
#4
REVIEW
Pierre Grumet, Laurent Kodjikian, Audrey de Parisot, Marie-Hélène Errera, Neila Sedira, Emmanuel Heron, Laurent Pérard, Pierre-Loïc Cornut, Christelle Schneider, Sophie Rivière, Priscille Ollé, Grégory Pugnet, Pascal Cathébras, Pierre Manoli, Bahram Bodaghi, David Saadoun, Stéphanie Baillif, Nathalie Tieulie, Marc Andre, Frédéric Chiambaretta, Nicolas Bonin, Philip Bielefeld, Alain Bron, Frédéric Mouriaux, Boris Bienvenu, Stéphanie Vicente, Sylvie Bin, Marc Labetoulle, Christiane Broussolle, Yvan Jamilloux, Evelyne Decullier, Pascal Sève
PURPOSE: ULISSE is the only study that prospectively assessed the efficiency of a standardized strategy, compared to an open strategy for the etiologic diagnosis of uveitis. Our aim was to evaluate the diagnostic yield of the tests prescribed in the ULISSE study to clarify their relevance. METHODS: ULISSE is a non-inferiority, prospective, multicenter and cluster randomized study. The standardized strategy is a two-steps strategy: in the first step, common standard tests were performed, and in the second step, tests were guided by the clinical and anatomic type of uveitis...
February 7, 2018: Autoimmunity Reviews
https://www.readbyqxmd.com/read/29417038/miliary-tuberculosis-with-pulmonary-and-extrapulmonary-component-complicated-with-acute-respiratory-distress-syndrome
#5
Bhupen Barman, Iadarilang Tiewsoh, Kyrshanlang G Lynrah, Baphira Wankhar, Taso Beyong, Neel Kanth Issar
Miliary tuberculosis results from the lymphohematogenous spread of the tubercle bacilli to the vascular beds in the lungs and other organs. Diagnosis is made by clinical judgment and chest X-ray showing miliary mottling of the lung fields. Another imaging study like computed tomography imaging of the lungs and abdomen can also be supportive in diagnosing miliary tuberculosis. We present a case of miliary tuberculosis in an immunocompetent young male with atypical manifestation of a left-sided pleural effusion and a life-threatening complication of acute respiratory distress syndrome during hospital stay which required noninvasive mechanical ventilation and steroids therapy, along with antitubercular medication...
July 2017: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/29407993/synthesis-of-coumarin-theophylline-hybrids-as-a-new-class-of-anti-tubercular-and-anti-microbial-agents
#6
Sumitra N Mangasuli, Kallappa M Hosamani, Hirihalli C Devarajegowda, Mahantesh M Kurjogi, Shrinivas D Joshi
A series of novel coumarin-theophylline hybrids were synthesized and examined for their anti-tubercular activity in vitro against Mycobacterium tuberculosis H37Rv, anti-microbial activity in vitro against gram-positive bacteria (Staphylococcus aureus) and gram-negative bacterias (Escherichia coli, Salmonella typhi) as well as fungi (Candida albicans). The compound (3a) has shown excellent anti-tubercular activity with MIC of 0.12 μg/mL. Electron donating compounds (3a, 3f) have displayed significant anti-microbial activity...
January 10, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29398759/tubercular-mycobacterial-spindle-cell-pseudotumour-a-case-report
#7
Deba Prasad Dhibar, Kamal Kant Sahu, Surjit Singh, Amanjit Bal, Abhijit Chougale, Varun Dhir
Pseudotumour is a benign inflammatory lesion. Mycobacterial spindle cell pseudotumour (MSP) is a rare pseudotumour. It is a benign proliferation of spindle-shaped histiocytes containing acid-fast mycobacterium, commonly reported in immunocompromised patients. MSP is usually associated with mycobacterium avium complex (MAC). Here, we present the case of a 38-year-old gentleman with acquired immune deficiency syndrome (AIDS) who presented with low-grade fever for 1-month duration. Clinically, he had generalised lymphadenopathy...
January 2018: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29395566/-clinical-and-radiological-characteristics-of-pulmonary-tuberculosis-in-tobacco-smokers
#8
U D Kombila, F B R Mbaye, Y Dia Kane, W Ka, N O Toure Badiane
INTRODUCTION: Tobacco smoke alters lung defense mechanisms against infections and so increases the risk of mycobacterium tuberculosis infection. OBJECTIVE: To determine the particular clinical features of tuberculosis in smokers and identify risk factors. METHODS AND PATIENTS: We conducted a prospective, cross-sectional study over a period of nine months in Dakar, Senegal. The Chi-square test and multiple logistic regression were used to identify differences between smokers and non-smokers and to identify factors associated with clinical outcomes...
January 27, 2018: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/29379389/prevalence-and-factors-associated-with-tuberculosis-treatment-success-among-tb-hiv-co-infection-in-north-east-malaysia
#9
Tengku Mardhiah Tengku Jalal, Sarimah Abdullah, Farhanah Abd Wahab, Sharina Dir, Nyi Nyi Naing
Background: One of the six strategies developed by WHO, in order to stop Tuberculosis (TB) is addressing TB/HIV high-risk groups. This study aimed to determine the prevalence of successful TB treatment and factors associated with TB treatment success among TB/HIV co-infection patients in North-East Malaysia. Methods: A cross-sectional study was carried out in the a-year period from 2003 to 2012 by reviewing TB/HIV records in all hospitals and health clinics. The outcome of interest was treatment success as defined by Ministry of Health (MOH) when the patients was cured or completed TB treatment...
December 2017: Malaysian Journal of Medical Sciences: MJMS
https://www.readbyqxmd.com/read/29379307/performance-of-computed-tomography-versus-chest-radiography-in-patients-with-pulmonary-tuberculosis-with-and-without-diabetes-at-a-tertiary-hospital-in-riyadh-saudi-arabia
#10
Yosra M Alkabab, Mushira A Enani, Nouf Y Indarkiri, Scott K Heysell
Background: Prior research suggests that diabetes mellitus (DM) is associated with increasing risk for developing cavitary lung disease in patients with pulmonary tuberculosis (TB). Additionally, chest computed tomography (CT) scan may be more sensitive than chest X-ray in detecting cavitary disease in such patients. The aim of this study was to compare the performance of chest CT to chest X-ray in detecting cavitary lung disease and to compare the frequency of cavities between TB patients with DM and without DM...
2018: Infection and Drug Resistance
https://www.readbyqxmd.com/read/29362378/comparing-different-technologies-for-active-tb-case-finding-among-the-homeless-a-transmission-dynamic-modelling-study
#11
Tendai Mugwagwa, Helen R Stagg, Ibrahim Abubakar, Peter J White
Homeless persons have elevated risk of tuberculosis (TB) and are under-served by conventional health services. Approaches to active case-finding (ACF) and treatment tailored to their needs are required. A transmission-dynamic model was developed to assess the effectiveness and efficiency of screening with mobile Chest X-ray, GeneXpert, or both. Effectiveness of ACF depends upon the prevalence of infection in the population (which determines screening 'yield'), patient willingness to wait for GeneXpert results, and treatment adherence...
January 23, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29352107/mycolyltransferase-from-mycobacterium-tuberculosis-in-covalent-complex-with-tetrahydrolipstatin-provides-insights-into-antigen-85-catalysis
#12
Christopher M Goins, Steven Dajnowicz, Micholas D Smith, Jerry M Parks, Donald R Ronning
Mycobacterium tuberculosis Antigen 85 enzymes (Ag85s) catalyze the transfer of mycolic acid (MA) from trehalose monomycolate to produce the mycolyl arabinogalactan (mAG) or trehalose dimycolate (TDM). These lipids define the protective mycomembrane of Mycobacteria. The current model of substrate binding within the active sites of Ag85s for the production of TDM is not sterically and geometrically feasible; additionally, this model does not account for the production of mAG. Furthermore, this model does not address how Ag85s limit the hydrolysis of the acyl-enzyme intermediate while catalyzing acyl transfer...
January 19, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29348388/disseminated-histoplasmosis-in-an-indonesian-hiv-positive-patient-a-case-diagnosed-by-fine-needle-aspiration-cytology
#13
Nungki Anggorowati, Rita C Sulistyaningsih, Ahmad Ghozali, Yanri W Subronto
A 30-year-old Javanese-Indonesian man was admitted with complaints of 3 months persistent fever, weight loss, and fatigue. He had never known his past history of unprotected HIV until the admission. His only risk factor is unsafe sex. The patient seemed well nourished. Physical examination revealed blood pressure 100/60 mmHg, pulse 100 beats per minute, respiratory rate 20 times per minute, and temperature 38.8°C. Multiple cervical and inguinal lymphadenopathies were also found. Electrocardiogram showed anterolateral ischemic finding, whereas chest X-ray were normal...
October 2017: Acta Medica Indonesiana
https://www.readbyqxmd.com/read/29346636/tuberculosis-among-the-homeless-in-chennai-city-south-india
#14
Chandrakumar Dolla, C Padmapriyadarsini, A Pradeep Menon, M Muniyandi, Srividya Adinarayanan, Gomathi Sekar, D Kavitha, Srikanth Prasad Tripathy, Soumya Swaminathan
Background: In India from a national perspective, the incidence/prevalence of active tuberculosis (TB) among the homeless are unknown. Methods: Homeless individuals, aged 15 years and above, were screened for TB by radiography and smear examination in Chennai city. Results: 301 individuals were enrolled and screened for TB; 8% (24/301) had chest symptoms; 5.6% (17/301) found X-ray abnormalities. The overall prevalence of TB was 1661/100 000; prevalence of culture-positive TB was 997/100 000 and smear-positive TB was 664/100 000 population...
October 1, 2017: Transactions of the Royal Society of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29343701/alanine-mutation-of-the-catalytic-sites-of-pantothenate-synthetase-causes-distinct-conformational-changes-in-the-atp-binding-region
#15
Bharati Pandey, Sonam Grover, Sukriti Goyal, Anchala Kumari, Aditi Singh, Salma Jamal, Jagdeep Kaur, Abhinav Grover
The enzyme Pantothenate synthetase (PS) represents a potential drug target in Mycobacterium tuberculosis. Its X-ray crystallographic structure has demonstrated the significance and importance of conserved active site residues including His44, His47, Asn69, Gln72, Lys160 and Gln164 in substrate binding and formation of pantoyl adenylate intermediate. In the current study, molecular mechanism of decreased affinity of the enzyme for ATP caused by alanine mutations was investigated using molecular dynamics (MD) simulations and free energy calculations...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343612/structural-and-functional-characterisation-of-the-cytochrome-p450-enzyme-cyp268a2-from-mycobacterium-marinum
#16
Stella A Child, Elise F Naumann, John B Bruning, Stephen G Bell
Members of the cytochrome P450 monooxygenase family CYP268 are found across a broad range of Mycobacterium species including the pathogens Mycobacterium avium, M. colombiense,M. kansasii and Mmarinum CYP268A2, from M. marinum , which is the first member of this family to be studied, was purified and characterised. CYP268A2 was found to bind a variety of substrates with high affinity, including branched and straight-chain fatty acids (C10-C12), acetate esters, and aromatic compounds. The enzyme was also found to bind phenylimidazole inhibitors but not larger azoles, such as ketoconazole...
January 17, 2018: Biochemical Journal
https://www.readbyqxmd.com/read/29332658/an-extremely-rare-association-of-sweet-s-syndrome-with-active-pulmonary-tuberculosis
#17
Sandhya Chauhan
Sweet's syndrome is a skin manifestation of various systemic infections, drugs, malignancies and autoimmune disorders. There are very few case reports describing the relationship between Sweet's syndrome and non-tubercular mycobacterium infection. Further development of Sweet's syndrome secondary to mycobacterium tuberculosis (active pulmonary tuberculosis) is extremely uncommon and this is the second well established case reported from India. Here we report a forty eight year old man who presented with multiple erythematous and tender plaques over neck, palms and sides of soles...
January 2018: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/29332643/role-of-laparoscopy-in-diagnosing-genital-tuberculosis-in-suspected-women-a-cross-sectional-study-from-a-tertiary-care-hospital-in-northern-india
#18
Y M Mala, Ruchi Prasad, Nilanchali Singh, C P Baweja, Reva Tripathi, Niharika Yedla
This study was included 60 women with suspected genital tuberculosis, attending outpatient department of a tertiary care hospital. The aim was to evaluate the role and accuracy of laparoscopy in the diagnosis of genital tuberculosis. The patients were investigated for tuberculosis with Erythrocyte Sedimentation Rate, Montoux, chest X-ray, serum ELISA, CA125, ultrasonography, endometrial biopsy and laparoscopic biopsy. Culture or histopathology was taken as a gold standard for confirming the cases of genital tuberculosis...
January 2018: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/29328655/identification-of-novel-coumestan-derivatives-as-polyketide-synthase-13-inhibitors-against-mycobacterium-tuberculosis
#19
Wei Zhang, Shichun Lun, Shu-Huan Wang, Xingwu Jiang, Fan Yang, Jie Tang, Abigail L Manson, Ashlee M Earl, Hendra Gunosewoyo, William R Bishai, Li-Fang Yu
Inhibition of the mycolic acid pathway has proven a viable strategy in antitubercular drug discovery. The AccA3/AccD4/FadD32/Pks13 complex of Mycobacterium tuberculosis constitutes an essential biosynthetic mechanism for mycolic acids. Small molecules targeting the thioesterase domain of Pks13 have been reported, including a benzofuran-based compound, whose X-ray co-crystal structure has been very recently solved. Its initial inactivity in a serum inhibition titration (SIT) assay led us to further probe other structurally-related benzofurans with the aim to improve their potency and bioavailability...
January 12, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29319026/sequelae-of-pulmonary-multidrug-resistant-tuberculosis-at-the-completion-of-treatment
#20
Rupak Singla, Manashree Mallick, Parul Mrigpuri, Neeta Singla, Amitesh Gupta
BACKGROUND: Treatment of multidrug-resistant (MDR-TB) mainly focuses on bacteriological cure. However, only limited studies have evaluated the sequelae left after the completion of treatment among MDR-TB patients. OBJECTIVE: To assess the persistent symptoms, radiological sequelae, pulmonary function impairment and quality of life at the completion of treatment among MDR-TB patients. METHODS: Forty six MDR-TB patients were enrolled, who completed two years of treatment under programmatic management of Drug Resistant tuberculosis at a tertiary referral institute in Delhi, India...
January 2018: Lung India: Official Organ of Indian Chest Society
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