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https://www.readbyqxmd.com/read/28739436/efficacy-of-isoniazid-salvage-therapy-for-latent-tuberculosis-infection-in-patients-with-immune-mediated-inflammatory-disorders-a-retrospective-cohort-study-in-taiwan
#1
Shiang-Fen Huang, Ming-Han Chen, Fu-Der Wang, Chang-Youh Tsai, Chang-Phone Fung, Wei-Juin Su
BACKGROUND: Active tuberculosis (TB) in patients with latent tuberculosis infection (LTBI) was associated with use of biological agents for immune-mediated inflammatory disorders (IMIDs). For decreasing active TB, isoniazid prophylaxis therapy was administered before biologic therapy among IMID patients with LTBI. However, for patients who had been received biologics for a long time with unknown status of LTBI or exposure history of active TB, the prevalence of LTBI and efficacy of isoniazid therapy were unclear...
June 29, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28736436/heterogeneity-in-tuberculosis
#2
REVIEW
Anthony M Cadena, Sarah M Fortune, JoAnne L Flynn
Infection with Mycobacterium tuberculosis, the causative agent of tuberculosis (TB), results in a range of clinical presentations in humans. Most infections manifest as a clinically asymptomatic, contained state that is termed latent TB infection (LTBI); a smaller subset of infected individuals present with symptomatic, active TB. Within these two seemingly binary states, there is a spectrum of host outcomes that have varying symptoms, microbiologies, immune responses and pathologies. Recently, it has become apparent that there is diversity of infection even within a single individual...
July 24, 2017: Nature Reviews. Immunology
https://www.readbyqxmd.com/read/28734675/safety-and-effectiveness-of-tocilizumab-in-treating-patients-with-rheumatoid-arthritis-a-three-year-study-in-taiwan
#3
Ching-Tsai Lin, Wen-Nan Huang, Chia-Wei Hsieh, Yi-Ming Chen, Der-Yuan Chen, Tsu-Yi Hsieh, Yi-Hsing Chen
OBJECTIVE: To evaluate the long-term safety and effectiveness of tocilizumab (TCZ) for the treatment of rheumatoid arthritis (RA) in a real-world clinical setting in Taiwan. METHOD: All refractory RA patients who initiated intravenous TCZ between August 2012 and March 2015 were enrolled. Data on patient characteristics, drug safety and effectiveness were collected. RESULTS: A total of 114 RA patients were recruited. Despite the majority of them (93%) had previous biologic failure, 43...
July 1, 2017: Journal of Microbiology, Immunology, and Infection, Wei Mian Yu Gan Ran za Zhi
https://www.readbyqxmd.com/read/28733429/proteogenomic-analysis-and-discovery-of-immune-antigens-in-mycobacterium-vaccae
#4
Jianhua Zheng, Lihong Chen, Liguo Liu, Haifeng Li, Bo Liu, Dandan Zheng, Tao Liu, Jie Dong, Lilian Sun, Yafang Zhu, Jian Yang, Xiaobing Zhang, Qi Jin
Tuberculosis (TB) is one of the leading causes of death worldwide, especially in developing countries. Neonatal BCG vaccination occurs in various regions, but the level of protection varies in different populations. Recently, Mycobacterium vaccae is found to be an immunomodulating therapeutic agent that could confer a significant level of protection against TB. It is the only vaccine in a phase III trial from WHO to assess its efficacy and safety in preventing TB disease in people with latent TB infection. However, the mechanism of immunotherapy of M...
July 21, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28730751/tuberculosis-and-biologics-in-rheumatology-india-a-special-situation
#5
REVIEW
Rohini Handa, Sundeep Upadhyaya, Sanjiv Kapoor, Ramesh Jois, Bimlesh D Pandey, Anuj K Bhatnagar, Ashwani Khanna, Vishal Goyal, Kamal Kumar
India has a huge patient burden of rheumatic diseases (RDs) including rheumatoid arthritis. The use of biologics has transformed the treatment paradigm for RD; however, biologic treatment-related infections (especially tuberculosis [TB]) are an area of potential concern for TB-endemic nations like India. Anti-tumor necrosis factor (TNF) therapy impairs the physiological TNF-mediated signaling and may cause reactivation and dissemination of latent TB infection (LTBI). Careful screening is, thus, crucial in RD patients who are about to commence anti-TNF treatment...
July 21, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28730222/tuberculosis-and-its-particularities-in-romania-and-worldwide
#6
Floarea Mimi NiŢu, Mihai Olteanu, Costin Teodor Streba, Gabriela Jimborean, Paraschiva Postolache, Milena Adina Man, Antigona Carmen Trofor, Roxana Maria Nemeş, Livia Dragonu, Mădălina Olteanu
Tuberculosis (TB) is a global health issue, with a rising incidence since the beginning of this century. It poses a severe mortality risk and also poses a serious economic risk as it reduces the working capacity of an individual in the most productive part of life. Developing countries face widespread tuberculosis infection - up to 95% of all cases and 98% of deaths, respectively. It is a highly contagious infectious disease caused by Mycobacterium tuberculosis (the Koch bacillus) that can be contracted from either humans or animal hosts...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28729186/-tuberculosis-treatment-for-children-an-update
#7
María José Mellado Peña, Begoña Santiago García, Fernando Baquero-Artigao, David Moreno Pérez, Roi Piñeiro Pérez, Ana Méndez Echevarría, José Tomás Ramos Amador, David Gómez-Pastrana Durán, Antoni Noguera Julian
Tuberculosis (TB) is the most important infectious disease all over the world, with a high morbidity and mortality. Pediatric tuberculosis has been a neglected epidemic, due to the difficulties in assessing its global impact, reduced incidence and lower infectivity compared to adults. In 2015, the WHO reported 1 million cases of paediatric TB and 169,000 deaths. In Europe, the emergence of MDR TB is a major concern, representing 16% of the new diagnosis in Eastern Europe. In 2014, it was estimated that about 219,000 children were infected by MDR-TB-strains in Europe, and 2,120 developed the disease...
July 17, 2017: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/28724374/cost-effectiveness-of-isoniazid-preventive-therapy-among-hiv-infected-patients-clinicaly-screened-for-latent-tuberculosis-infection-in-dar-es-salaam-tanzania-a-prospective-cohort-study
#8
Grace A Shayo, Dereck Chitama, Candida Moshiro, Said Aboud, Muhammad Bakari, Ferdinand Mugusi
BACKGROUND: One of the reasons why Isoniazid preventive therapy (IPT) for Tuberculosis (TB) is not widely used in low income countries is concerns on cost of excluding active TB. We analyzed the cost-effectiveness of IPT provision in Tanzania having ruled out active TB by a symptom-based screening tool. METHODS: Data on IPT cost-effectiveness was prospectively collected from an observational cohort study of 1283 HIV-infected patients on IPT and 1281 controls; followed up for 24 months...
July 19, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28720766/predicting-susceptibility-to-tuberculosis-based-on-gene-expression-profiling-in-dendritic-cells
#9
John D Blischak, Ludovic Tailleux, Marsha Myrthil, Cécile Charlois, Emmanuel Bergot, Aurélien Dinh, Gloria Morizot, Olivia Chény, Cassandre Von Platen, Jean-Louis Herrmann, Roland Brosch, Luis B Barreiro, Yoav Gilad
Tuberculosis (TB) is a deadly infectious disease, which kills millions of people every year. The causative pathogen, Mycobacterium tuberculosis (MTB), is estimated to have infected up to a third of the world's population; however, only approximately 10% of infected healthy individuals progress to active TB. Despite evidence for heritability, it is not currently possible to predict who may develop TB. To explore approaches to classify susceptibility to TB, we infected with MTB dendritic cells (DCs) from putatively resistant individuals diagnosed with latent TB, and from susceptible individuals that had recovered from active TB...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716677/incidence-of-active-tuberculosis-in-individuals-with-latent-tuberculosis-infection-in-rural-china-follow-up-results-of-a-population-based-multicentre-prospective-cohort-study
#10
Lei Gao, Xiangwei Li, Jianmin Liu, Xinhua Wang, Wei Lu, Liqiong Bai, Henan Xin, Haoran Zhang, Hengjing Li, Zongde Zhang, Yu Ma, Mufei Li, Boxuan Feng, Jiang Du, Hongtao Sui, Rong Zhao, Haoxiang Su, Shouguo Pan, Ling Guan, Fei Shen, Jian He, Shumin Yang, Hongyan Si, Xu Cheng, Zuhui Xu, Yunhong Tan, Tianzhu Chen, Weiguo Xu, Hong Peng, Zhijian Wang, Tao Zhu, Xiaoyou Chen, Xinhua Zhou, Xueling Guan, Qi Jin
BACKGROUND: The management of latent Mycobacterium tuberculosis infection is a new priority action for the WHO End Tuberculosis (TB) Strategy. However, national guidelines on latent tuberculosis infection testing and treatment have not yet been developed in China. Here, we present the results from the 2-year follow-up of a study that aimed to track the development of active disease in individuals with latent tuberculosis infection, identify priority populations for latent infection management, and explore the most suitable latent infection diagnostic approach...
July 14, 2017: Lancet Infectious Diseases
https://www.readbyqxmd.com/read/28713838/role-of-interferons-in-the-development-of-diagnostics-vaccines-and-therapy-for-tuberculosis
#11
REVIEW
Kai Ling Chin, Fadhilah Zulkipli Anis, Maria E Sarmiento, Mohd Nor Norazmi, Armando Acosta
Tuberculosis (TB) is an airborne infection caused by Mycobacterium tuberculosis (Mtb). About one-third of the world's population is latently infected with TB and 5-15% of them will develop active TB in their lifetime. It is estimated that each case of active TB may cause 10-20 new infections. Host immune response to Mtb is influenced by interferon- (IFN-) signaling pathways, particularly by type I and type II interferons (IFNs). The latter that consists of IFN-γ has been associated with the promotion of Th1 immune response which is associated with protection against TB...
2017: Journal of Immunology Research
https://www.readbyqxmd.com/read/28711989/striking-the-right-immunological-balance-prevents-progression-of-tuberculosis
#12
REVIEW
Shachi Pranjal Vyas, Ritobrata Goswami
INTRODUCTION: Tuberculosis (TB) caused by infection with Mycobacterium tuberculosis (Mtb) is a major burden for human health worldwide. Current standard treatments for TB require prolonged administration of antimycobacterial drugs leading to exaggerated inflammation and tissue damage. This can result in the reactivation of latent TB culminating in TB progression. Thus, there is an unmet need to develop therapies that would shorten the duration of anti-TB treatment and to induce optimal protective immune responses to control the spread of mycobacterial infection with minimal lung pathology...
July 15, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/28711483/a-multistage-subunit-vaccine-effectively-protects-mice-against-primary-progressive-tuberculosis-latency-and-reactivation
#13
Jilei Ma, Xindong Teng, Xiaochun Wang, Xionglin Fan, Yaqi Wu, Maopeng Tian, Zijie Zhou, Longmeng Li
Adult tuberculosis (TB) is the main cause of TB epidemic and death. The infection results mainly by endogenous reactivation of latent TB infection and secondarily transmitted by exogenous infection. There is no vaccine for adult TB. To this end, we first chose antigens from a potential antigenic reservoir. The antigens strongly recognized T cells from latent and active TB infections that responded to antigens expressed by Mycobacterium tuberculosis cultured under different metabolic states. Fusions of single-stage polyprotein CTT3H, two-stage polyprotein A1D4, and multistage CMFO were constructed...
July 8, 2017: EBioMedicine
https://www.readbyqxmd.com/read/28710848/breaking-transmission-with-vaccines-the-case-of-tuberculosis
#14
Jesus Gonzalo-Asensio, Nacho Aguilo, Dessislava Marinova, Carlos Martin
Members of the Mycobacterium tuberculosis complex (MTBC) have evolved causing tuberculosis (TB) in different mammalian hosts. MTBC ecotypes have adapted to diverse animal species, with M. bovis being the most common cause of TB in livestock. Cattle-to-human transmission of M. bovis through ingestion of raw milk was common before introduction of the pasteurization process. TB in humans is mainly caused by M. tuberculosis. This bacterium is considered a genetically clonal pathogen that has coevolved with humans due to its ability to manipulate and subvert the immune response...
July 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28694808/mycobacterium-tuberculosis-dosr-regulon-gene-rv2004c-encodes-a-novel-antigen-with-pro-inflammatory-functions-and-potential-diagnostic-application-for-detection-of-latent-tuberculosis
#15
Sankara Narayana Doddam, Vidyullatha Peddireddy, Niyaz Ahmed
Approximately 1.7 billion people in the world harbor latent Mycobacterium tuberculosis (Mtb) with a substantial risk of progression to clinical outcome. Containment of these seed beds of Mtb is essential to eliminate tuberculosis completely in high burden settings such as India. Hence, there is an urgent need for the identification of new serological markers for detection or vaccine candidates to prevent latent tuberculosis infection (LTBI). DosR regulon antigens of Mtb might serve as attractive targets for LTBI diagnosis or vaccine development as they are specifically expressed and are upregulated during latent phase...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28690380/identification-of-inhibitors-against-%C3%AE-isopropylmalate-synthase-of-mycobacterium-tuberculosis-using-docking-mm-pbsa-hybrid-approach
#16
Preeti Pandey, Andrew M Lynn, Pradipta Bandyopadhyay
α-Isopropylmalate Synthase (α-IPMS) encoded by leuA in Mycobacterium tuberculosis (M.tb) is involved in the leucine biosynthesis pathway and is extremely critical for the synthesis of branched-chain amino acids (leucine, isoleucine and valine). α-IPMS activity is required not only for the proliferation of M.tb but is also indispensable for its survival during the latent phase of infection. It is absent in humans and is widely regarded as one of the validated drug targets against Tuberculosis (TB). Despite its essentiality, any study on designing of potential chemical inhibitors against α-IPMS has not been reported so far...
2017: Bioinformation
https://www.readbyqxmd.com/read/28667275/tuberculosis-infection-in-rural-labor-migrants-in-shenzhen-china-emerging-challenge-to-tuberculosis-control-during-urbanization
#17
Xiangwei Li, Qianting Yang, Boxuan Feng, Henan Xin, MingXia Zhang, Qunyi Deng, Guofang Deng, Wanshui Shan, Jianrong Yue, Haoran Zhang, Mufei Li, Hengjing Li, Qi Jin, Xinchun Chen, Lei Gao
During China's urbanization process, rural labor migrants have been suggested to be one important bridge population to change urban-rural distribution on tuberculosis (TB) burden. Aiming to estimate the prevalence of TB infection and to track the active disease development in rural labor migrants, a prospective study was conducted in Shenzhen city, southern China. TB infection was detected using interferon-γ release assay (IGRA). Here we mainly report the characteristics of TB infection in the study population based on the baseline survey...
June 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28665059/occupational-risk-of-latent-tuberculosis-infection-in-health-workers-of-14-military-hospitals
#18
Chang Gyo Yoon, Soo Yon Oh, Jin Beom Lee, Mi Hyun Kim, Younsuk Seo, Juyoun Yang, Kyu Jung Bae, Seoyean Hong, Eun Suk Yang, Hee Jin Kim
Tuberculosis (TB) is a known occupational risk to health workers. Identifying risk factors in health care settings is critical to the prevention of TB for health workers and patients. In 2014, we carried out a TB screening and survey for 902 health workers from 14 selected military hospitals to determine the prevalence rate of latent tuberculosis infection (LTBI) as well as occupational risk factors. Of all subjects, 19.5% reported having provided TB patient care for 1 year or more (176/902), and 26.9% (243/902) were positive for the tuberculin skin test (TST) (10 mm or more of induration)...
August 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28659881/rna-profiling-analysis-of-the-serum-exosomes-derived-from-patients-with-active-and-latent-mycobacterium-tuberculosis-infection
#19
Lingna Lv, Cuidan Li, Xiuli Zhang, Nan Ding, Tianshu Cao, Xinmiao Jia, Jinghui Wang, Liping Pan, Hongyan Jia, Zihui Li, Ju Zhang, Fei Chen, Zongde Zhang
Tuberculosis (TB) has exceeded HIV as the most lethal infectious disease globally for two consecutive years. Moreover, one third of the world's population is estimated to have latent tuberculosis infection (LTBI). This is mainly because of difficulties associated with diagnosis and treatment for both TB and LTBI patients. Exosomes provide a promising research tool for TB diagnosis and treatment because they are released from various cells containing valuable biochemical information related to disease. In this study, we performed RNA-sequencing analysis on exosomes derived from clinical specimens of healthy controls (HC), active tuberculosis (ATB), and LTBI patients...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28659665/risk-of-tuberculosis-reactivation-in-patients-with-rheumatoid-arthritis-ankylosing-spondylitis-and-psoriatic-arthritis-receiving-non-anti-tnf-targeted-biologics
#20
REVIEW
Fabrizio Cantini, Carlotta Nannini, Laura Niccoli, Linda Petrone, Giuseppe Ippolito, Delia Goletti
Tuberculosis (TB) still represents an important issue for public health in underdeveloped countries, but the use of antitumor necrosis factor agents (anti-TNF) for the treatment of inflammatory rheumatic disorders has reopened the problem also in countries with low TB incidence, due to the increased risk of TB reactivation in subjects with latent tuberculosis infection (LTBI). Over the last 5 years, several non-anti-TNF-targeted biologics have been licensed for the treatment of rheumatoid arthritis, ankylosing spondylitis, and psoriatic arthritis...
2017: Mediators of Inflammation
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