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https://www.readbyqxmd.com/read/28494250/recent-developments-of-coumarin-containing-derivatives-and-their-anti-tubercular-activity
#1
Yuan-Qiang Hu, Zhi Xu, Shu Zhang, Xiang Wu, Jun-Wei Ding, Zao-Sheng Lv, Lian-Shun Feng
Tuberculosis (TB) is a lift-threatening chronic deadliest infectious disease caused predominantly by Mycobacterium tuberculosis (MTB) which affects primarily the lungs (pulmonary TB) apart from other vital organs. The emergence of drug-resistant TB (DR-TB), multidrug-resistant TB (MDR-TB), extensively drug-resistant TB (XDR-TB) and the recently cases of totally drug resistant (TDR) towards currently accessible standard drugs was increased up to alarming level in the recent decades. In pursuit of searching new anti-TB agents, numerous of derivatives have been synthesized and screened for their anti-TB activity...
May 2, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28480653/the-rate-of-drug-resistant-tuberculosis-in-korean-children-and-adolescents-since-2007
#2
Hyun Jung Kim, Hyung Ho Yoon, Byung Wook Eun, Youngmin Ahn, Sungweon Ryoo, Hee Jin Kim
The incidence of drug-resistant tuberculosis (DR-TB) in pediatric populations is a critical indicator of national TB management and treatment strategies. Limited data exist regarding the rate of pediatric DR-TB. In this study, we aimed to analyze the status of DR-TB in Korean children from 2007 to 2013. We analyzed specimens submitted to the Korean Institute of Tuberculosis using Mycobacterium tuberculosis culture and drug susceptibility tests (DSTs) from January 2007 through December 2013. Specimens from patients ≤ 19 years of age were included...
June 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28419314/adverse-drug-reactions-during-drug-resistant-tb-treatment-in-high-hiv-prevalence-settings-a-systematic-review-and-meta-analysis
#3
Kathryn Schnippel, Cynthia Firnhaber, Rebecca Berhanu, Liesl Page-Shipp, Edina Sinanovic
Objectives: To estimate the prevalence of adverse drug reactions or events (ADR) during drug-resistant TB (DR-TB) treatment in the context of settings with high HIV prevalence (at least 20% of patients). Methods: We conducted a systematic review and meta-analysis of articles in PubMed and Scopus. Pooled proportions of patients experiencing adverse events and relative risk with 95% CI were calculated. Results: The search yielded 24 studies, all observational cohorts...
April 16, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28399971/drug-resistant-tuberculosis-in-patients-with-minimal-symptoms-favourable-outcomes-in-the-absence-of-treatment
#4
M Loveday, A Ramjee, G Osburn, I Master, G Kabera, J C M Brust, N Padayatchi, R Warren, G Theron
SETTING: Referral hospital for drug-resistant tuberculosis (DR-TB) in KwaZulu-Natal Province, South Africa. OBJECTIVE: To review the clinical outcomes of patients (age  14 years) with a laboratory-confirmed diagnosis of DR-TB who had minimal symptoms and/or did not have chest radiographic evidence of active disease at referral. These patients were not started on treatment, but were enrolled in an observation programme with follow-up at 2, 6 and 12 months. RESULTS: Of 3345 referred patients diagnosed with DR-TB, 192 (6%) were enrolled in the observation programme...
May 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28395347/burden-of-occupationally-acquired-pulmonary-tuberculosis-among-healthcare-workers-in-the-usa-a-risk-analysis
#5
Rachael M Jones
Pulmonary tuberculosis (TB) infection remains an occupational health burden among healthcare workers (HCWs), but current surveillance data do not allow for attribution of pulmonary TB disease to occupational or community exposures. The objectives of this study were to estimate the annual number of occupationally acquired pulmonary TB infections among HCW in acute care settings (ambulatory care, emergency departments (EDs), and hospitals) in the USA, and to estimate the impact of increased compliance with respiratory protection...
March 1, 2017: Annals of Work Exposures and Health
https://www.readbyqxmd.com/read/28390957/isoniazid-derivatives-and-their-anti-tubercular-activity
#6
REVIEW
Yuan-Qiang Hu, Shu Zhang, Feng Zhao, Chuan Gao, Lian-Shun Feng, Zao-Sheng Lv, Zhi Xu, Xiang Wu
Tuberculosis (TB), which has been a scourge of humanity for thousands of years, is a worldwide pandemic disease caused mainly by Mycobacterium tuberculosis (MTB). The emergence of drug-resistant TB (DR-TB), multidrug-resistant TB (MDR-TB), extensively drug-resistant TB (XDR-TB) and totally drug-resistant TB (TDR-TB) increase the challenges to eliminate TB worldwide. Isoniazid (INH), a critical frontline anti-TB drug, is one of the most effective drugs used to treatment of TB infection for more than 60 years...
April 3, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28386407/current-tools-available-for-the-diagnosis-of-drug-resistant-tuberculosis
#7
REVIEW
Christopher Gilpin, A Korobitsyn, K Weyer
Drug-resistant tuberculosis (DR-TB) poses a major threat to control of tuberculosis worldwide. Diagnosis and treatment of DR-TB are considerably more difficult than for drug-susceptible tuberculosis (TB) and require higher level infrastructure and proficiency from laboratory specialists and clinicians. The World Health Organization (WHO) End TB Strategy calls for early diagnosis and initiation of appropriate treatment of all persons of all ages with any form of drug-susceptible TB or DR-TB. This requires ensuring access to WHO-recommended rapid diagnostics and universal drug susceptibility testing (DST) for all persons with signs and symptoms of TB...
December 2016: Therapeutic Advances in Infectious Disease
https://www.readbyqxmd.com/read/28360464/assess-drug-resistance-pattern-and-genetic-profile-of-mycobacterium-tuberculosis-clinical-isolates-by-molecular-typing-methods-using-direct-repeats-and-is6110-in-pulmonary-tuberculosis-cases
#8
Deepika Kalo, Surya Kant, Kanchan Srivastava, Ajay K Sharma
BACKGROUND: Tuberculosis (TB), a highly contagious disease that sees no gender, age, or race is mainly a disease of lungs. According to World Health Organization, a TB patient can be completely cured with 6-9 months of anti-TB treatment under directly observed treatment short course. OBJECTIVES: The aim of this study was to check the mono, multi- and triple-drug resistance to first line drugs (FLDs) among TB patients and to access their genetic profile using DR 3074, DR 0270, DR 0642, DR 2068, and DR 4110 using molecular techniques...
March 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28319425/overcoming-challenges-in-the-diagnosis-prevention-and-treatment-of-pediatric-drug-resistant-tuberculosis
#9
Sylvie Jonckheree, Jennifer Furin
Drug-resistant tuberculosis (DR-TB) is a growing global health threat and children are especially vulnerable to becoming infected and sick with DR-TB. There is a growing body of evidence on the optimal diagnosis, treatment and prevention of DR-TB in this vulnerable population. Areas covered: A comprehensive review of the literature on DR-TB in children was done using PubMed and Ovid databases up to 31 December 2016. Topic areas covered included diagnosis of DR-TB, treatment of DR-TB - including novel medications and regimens, prevention of DR-TB, community-based care, and stigma/discrimination...
May 2017: Expert Review of Respiratory Medicine
https://www.readbyqxmd.com/read/28317805/prevalence-and-genetic-determinant-of-drug-resistant-tuberculosis-among-patients-completing-intensive-phase-of-treatment-in-a-tertiary-referral-center-in-nigeria
#10
Aminu Bashir Mohammad, Garba Iliyasu, Abdulrazaq Garba Habib
BACKGROUND: Drug-resistant tuberculosis (DR-TB) continues to be a challenge in developing countries with poor resources. Despite the high prevalence of primary DR-TB, its routine screening prior to the treatment is not performed in public hospitals in Nigeria. Data regarding drug resistance and its genetic determinant among follow-up patients with TB are lacking in Nigeria. Hence, the aim of this study was to determine the prevalence and genetic determinant of drug resistance among the follow-up patients with TB in a tertiary hospital in Nigeria...
January 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28317798/nontuberculous-mycobacterial-species-and-mycobacterium-tuberculosis-complex-coinfection-in-patients-with-pulmonary-tuberculosis-in-dr-soetomo-hospital-surabaya-indonesia
#11
Ni Made Mertaniasih, Deby Kusumaningrum, Eko Budi Koendhori, Tutik Kusmiati, Desak Nyoman Surya Suameitria Dewi
OBJECTIVE/BACKGROUND: The aim of this study was to analyze the detection of nontuberculous mycobacterial (NTM) species derived from sputum specimens of pulmonary tuberculosis (TB) suspects. Increasing prevalence and incidence of pulmonary infection by NTM species have widely been reported in several countries with geographical variation. MATERIALS AND METHODS: Between January 2014 and September 2015, sputum specimens from chronic pulmonary TB suspect patients were analyzed...
January 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28285302/need-for-revision-of-guidelines-for-management-of-dr-tb-in-children
#12
Manju Kumari, Ira Shah
No abstract text is available yet for this article.
February 15, 2017: Indian Pediatrics
https://www.readbyqxmd.com/read/28237037/the-effect-size-of-type-2-diabetes-mellitus-on-tuberculosis-drug-resistance-and-adverse-treatment-outcomes
#13
Lucia Monserrat Perez-Navarro, Blanca I Restrepo, Francisco Javier Fuentes-Dominguez, Ravindranath Duggirala, Jaime Morales-Romero, Juan Carlos López-Alvarenga, Iñaki Comas, Roberto Zenteno-Cuevas
OBJECTIVE: To evaluate the effect size of type 2 diabetes mellitus (T2DM) on tuberculosis (TB) treatment outcomes and multi drug resistance (MDR). METHODS: A cohort with 507 individuals with diagnosed TB included 183 with coexistence of T2DM and TB (TB-T2DM). Participants were identified at the time of TB diagnosis and followed during the course of TB treatment. Then we computed relative risks and adjustments by Cox proportional hazards for outcome variables (drug resistance, death, relapse, treatment failure), and the size of their effect as Cohen's-d...
March 2017: Tuberculosis
https://www.readbyqxmd.com/read/28164036/primary-extrapulmonary-multidrug-resistant-tuberculosis-in-an-immunocompetent-child-presenting-with-pleural-effusion
#14
Sankalp Yadav, Gautam Rawal
The developing countries are having a number of public health issues. The situation in these resource-limited countries is scary due to the huge burden of infectious diseases like tuberculosis (TB). The latest reports from the WHO shows a high number of drug resistant cases even in the pediatric age groups. Also, the lack of suspicion of drug resistant TB (DR-TB) in the pediatric cases, especially in the absence of a past or family history may lead to delay in diagnosis and flaring-up of the disease. We herein present the very first case of the primary multidrug-resistant TB in an HIV negative child who presented with the left sided pleural effusion...
January 2017: Translational pediatrics
https://www.readbyqxmd.com/read/28125692/recurrence-after-successful-treatment-of-multidrug-resistant-tuberculosis-in-taiwan
#15
Meng-Yu Chen, Yi-Chun Lo, Wan-Chin Chen, Kwei-Feng Wang, Pei-Chun Chan
Recurrence after successful treatment for multidrug-resistant tuberculosis (MDR-TB) is challenging because of limited retreatment options. This study aimed to determine rates and predictors of MDR-TB recurrence after successful treatment in Taiwan. Recurrence rates were analyzed by time from treatment completion in 295 M DR-TB patients in a national cohort. Factors associated with MDR-TB recurrence were examined using a multivariate Cox regression analysis. Ten (3%) patients experienced MDR-TB recurrence during a median follow-up of 4...
2017: PloS One
https://www.readbyqxmd.com/read/28123960/the-referral-pathway-of-presumptive-drug-resistant-tuberculosis-in-an-urban-poor-setting-the-philippines
#16
E Lopez, S Yoshimatsu, A Querri, L Coprada, J Bermejo, M R Paulino, A Medina, A M C Garfin, A Ohkado
Setting: Socio-economically underprivileged urban areas in the Philippines. Objectives: To identify gaps in the referral pathway of presumptive drug-resistant tuberculosis (DR-TB) patients from initial consultation until initiation of treatment. Design: A retrospective study in which a masterlist of presumptive multidrug-resistant TB (MDR-TB) patients registered in 18 DOTS facilities in Tondo, Manila and Payatas, Quezon City, from October 2012 to September 2013, was analysed and reviewed. Results: Among 378 presumptive DR-TB patients identified and listed in the masterlist, 97% (368/378) were referred, of whom 90% (333/368) were screened at an MDR-TB treatment centre...
December 21, 2016: Public Health Action
https://www.readbyqxmd.com/read/28050363/first-line-anti-tb-drug-resistance-in-an-urban-area-of-odisha-india
#17
Dasarathi Das, Prakasini Satapathy, Biswanath Murmu
INTRODUCTION: Drug resistance is a major cause for increasing the global burden of Tuberculosis (TB). However in countries with larger geographical areas and different climatic conditions like India the prevalence of drug resistance varies from place to place. Information on anti-TB drug resistance patterns particularly among newly diagnosed cases is crucial for planning an effective TB control program. AIM: To determine the prevalence of resistance against first line anti-TB drugs and Multi Drug Resistance (MDR) in Mycobacterium tuberculosis isolates...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28043610/thoracic-surgical-interventions-for-dr-tb-and-their-results
#18
Ravindra Kumar Dewan
BACKGROUND: Surgery in DR-TB is a highly contested intervention. However, in suitable selected cases, it has a great role in improving outcomes of treatment as well as symptomatic improvement in the quality of life of the patient. Indications of surgery in this setting will be localized disease with high likelihood of persistent progression or sputum positivity despite adequate therapy. Recurrent hemoptysis, intolerance to drugs or absence of radiological and bacteriological improvement during initial 3-4months of therapy becomes additional indications for surgical intervention...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043606/ethambutol-resistance-testing-by-mutation-detection-using-mtbdrsl
#19
H Margaryan, S Rüsch-Gerdes, A Hayrapetyan, A Mirzoyan
AIMS AND OBJECTIVES: Despite the successes in managing drug-susceptible TB, drug-resistant (DR) tuberculosis is a major challenge to the effectiveness of National Tuberculosis Program in Armenia, placing the country in the list of 18 high-burden countries for MDR-TB in the WHO European Region. Estimated burden of MDR-TB in 2012 was 9.4 (7-12) and 43 (38-49) among retreatment TB cases. A total of 92 laboratory confirmed cases had been reported to the WHO (57 new and 35 previously treated) out of 511 cases tested for MDR-TB...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043600/benefits-and-challenges-of-molecular-diagnostics-for-childhood-tuberculosis
#20
Cristina Gutierrez
Expanding tuberculosis (TB)-diagnostic services, including access to rapid tests, is a World Health Organization (WHO) strategy to accelerate progress toward ending TB. Faster and more sensitive molecular tests capable of diagnosing TB and drug-resistant TB have the technical capacity to address limitations associated with smears and cultures by increasing accuracy and shortening turnaround times as compared with those of these conventional laboratory methods. Nucleic acid amplification assays used to detect and analyze Mycobacterium tuberculosis (MTB)-complex nucleic acids can be used directly on specimens from patients suspected of having TB...
December 2016: International Journal of Mycobacteriology
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