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https://www.readbyqxmd.com/read/28208160/quantitative-and-qualitative-profiles-of-circulating-monocytes-may-help-identifying-tuberculosis-infection-and-disease-stages
#1
Marco Pio La Manna, Valentina Orlando, Francesco Dieli, Paola Di Carlo, Antonio Cascio, Gilda Cuzzi, Fabrizio Palmieri, Delia Goletti, Nadia Caccamo
Tuberculosis (TB) is one of the most important cause of morbidity and death among infectious diseases, and continuous efforts are needed to improve diagnostic tools and therapy. Previous published studies showed that the absolute cells number of monocytes or lymphocytes in peripheral blood or yet the ratio of monocytes to lymphocytes displayed the ability to predict the risk of active TB. In the present study we evaluated the ratio of monocytes to lymphocytes variation and we also analyzed the ex-vivo expression of CD64 on monocytes as tools to identify biomarkers for discriminating TB stages...
2017: PloS One
https://www.readbyqxmd.com/read/28196479/treatment-completion-for-latent-tuberculosis-infection-a-retrospective-cohort-study-comparing-9%C3%A2-months-of-isoniazid-4%C3%A2-months-of-rifampin-and-3%C3%A2-months-of-isoniazid-and-rifapentine
#2
Adelaide H McClintock, McKenna Eastment, Christy M McKinney, Caroline L Pitney, Masahiro Narita, David R Park, Shireesha Dhanireddy, Alexandra Molnar
BACKGROUND: The U.S. Centers for Disease Control and Prevention (CDC) recommended a new regimen for treatment of latent tuberculosis (three months of weekly isoniazid and rifapentine) in late 2011. While completion rates of this regimen were reported to be higher than nine months of isoniazid, little is known about the completion rates of three months of isoniazid and rifapentine compared to nine months of isoniazid or four months of rifampin in actual use scenarios. METHODS: We conducted a retrospective cohort study comparing treatment completion for latent tuberculosis (TB) infection in patients treated with nine months of isoniazid, three months of isoniazid and rifapentine or four months of rifampin in outpatient clinics and a public health TB clinic in Seattle, Washington...
February 14, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28190535/treatment-of-latent-tuberculosis-in-patients-with-juvenile-rheumatic-diseases-a-systematic-review
#3
José Cleosmaque Leite Júnior, Regina Terse Trindade Ramos, Teresa Cristina Martins Vicente Robazzi
INTRODUCTION: Children and adolescents with rheumatic diseases receiving TNF blockers are at risk for the activation of latent Mycobacterium tuberculosis infection (LTBI). Although LTBI treatment is indicated in this group, there are different therapeutic regimens in the literature, without a definite consensus. OBJECTIVES: To review in the literature therapeutic schemes used and indicated for the treatment of LTBI in these patients. METHODS: Systematic review of the literature, using health databases, selecting studies that addressed the treatment of LTBI in patients with juvenile rheumatic diseases using TNF blockers, from 1990 to 2015...
January 21, 2017: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/28178325/prevalence-and-clinical-relevance-of-helminth-co-infections-among-tuberculosis-patients-in-urban-tanzania
#4
Francis Mhimbira, Jerry Hella, Khadija Said, Lujeko Kamwela, Mohamed Sasamalo, Thomas Maroa, Magreth Chiryamkubi, Grace Mhalu, Christian Schindler, Klaus Reither, Stefanie Knopp, Jürg Utzinger, Sébastien Gagneux, Lukas Fenner
BACKGROUND: Helminth infections can negatively affect the immunologic host control, which may increase the risk of progression from latent Mycobacterium tuberculosis infection to tuberculosis (TB) disease and alter the clinical presentation of TB. We assessed the prevalence and determined the clinical relevance of helminth co-infection among TB patients and household contact controls in urban Tanzania. METHODOLOGY: Between November 2013 and October 2015, we enrolled adult (≥18 years) sputum smear-positive TB patients and household contact controls without TB during an ongoing TB cohort study in Dar es Salaam, Tanzania...
February 8, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28172951/p439-diagnosis-and-management-of-latent-and-active-tuberculosis-in-the-context-of-biologic-therapy-in-inflammatory-bowel-disease
#5
A A Thi, S Bouri, P Wolfson, L Owen, A Abbara, L John, R Davidson, A Hart
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28172646/dop063-serial-tuberculin-skin-test-improves-the-detection-of-latent-tuberculosis-infection-in-inflammatory-bowel-disease-patients
#6
C Taxonera, A Ponferrada, F Bermejo, J P Gisbert, S Riestra, C Saro, J L Cabriada, M Barreiro-de Acosta, J Barrio, E Flores, I Ferrer, A Hernandez, M Van Domselaar, D Olivares, C Alba, L Fernández-Salazar, O Merino, B Botella, D Ceballos, I Moral, M Peñate, A Algaba
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28170135/diagnostic-potential-of-interferon-gamma-release-assay-to-detect-latent-tuberculosis-infection-in-kidney-transplant-recipients
#7
Jameela Edathodu, Bright Varghese, Abdulrahman A Alrajhi, Mohammed Shoukri, Ahmad Nazmi, Hazem Elgamal, Hassan Aleid, Fahad Alrabiah, Aattia 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/28157471/angiopoietins-as-biomarkers-of-disease-severity-and-bacterial-burden-in-pulmonary-tuberculosis
#8
N P Kumar, B Velayutham, D Nair, S Babu
BACKGROUND: Circulating angiogenic factors of the vascular endothelial growth factor family are important biomarkers of disease severity in pulmonary tuberculosis (PTB). However, the role of angiopoietins, which are also involved in angiogenesis, in PTB is not known. OBJECTIVE AND DESIGN: To examine the association of circulating angiopoietins with TB disease or latent tuberculous infection (LTBI), we examined the systemic levels of angiopoietin (Ang) 1, Ang 2 and Tie-2 receptor in individuals with PTB (n = 44), LTBI (n = 44) or no tuberculous infection (NTBI) (n = 44)...
January 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28157464/identifying-children-with-tuberculosis-among-household-contacts-in-the-gambia
#9
U Egere, T Togun, A Sillah, F Mendy, J Otu, M Hoelscher, N Heinrich, P C Hill, B Kampmann
SETTING: Greater Banjul Area of the Gambia. OBJECTIVES: To identify co-prevalent tuberculosis (TB) among child contacts of adults with smear-positive TB. DESIGN: Child contacts aged <15 years in the immediate household and compound were prospectively enrolled and evaluated for TB disease using screening questionnaires and the tuberculin skin test (TST). Symptomatic and/or TST-positive (10 mm) contacts were further investigated. RESULTS: Of 4042 child contacts who underwent symptom screening and TST, 3339 (82...
January 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28153574/low-yield-of-chest-radiography-in-general-inpatients-and-outpatients-with-positive-ppd-results-in-a-country-with-low-prevalence-of-tb
#10
Ronald L Eisenberg, Benedikt H Heidinger
RATIONALE AND OBJECTIVES: The purpose of this study was to assess the frequency and spectrum of abnormalities on routine screening chest radiographs among inpatients and outpatients with "positive purified protein derivative (PPD)" in a large tertiary care academic medical center in a country with low prevalence of tuberculosis (TB). MATERIALS AND METHODS: The reports of all chest radiographs of general inpatients and outpatients referred for positive PPD (2010-2014) were evaluated for the frequency of evidence of active or latent TB and the spectrum of imaging findings...
January 30, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28143943/eliminating-latent-tuberculosis-in-low-burden-settings-are-the-principal-beneficiaries-to-be-disadvantaged-groups-or-the-broader-population
#11
Chris Degeling, Justin Denholm, Paul Mason, Ian Kerridge, Angus Dawson
Tuberculosis (TB) remains a leading cause of morbidity and mortality worldwide, and the burdens of this disease continue to track prior disadvantage. In order to galvanise a coordinated global response, WHO has recently launched the End TB Campaign that aims to eliminate TB by 2050. Key to this is the introduction of population screening programmes in low-burden settings to identify and treat people who have latent TB infection (LTBI). The defining features of LTBI are: that it is not an active disease but confers an increased risk of disease; the socially disadvantaged are those most in danger and uncertainty persists as to who will be harmed or benefitted from screening-led prophylactic interventions...
January 31, 2017: Journal of Medical Ethics
https://www.readbyqxmd.com/read/28137234/mycobacterial-dna-replication-as-a-target-for-antituberculosis-drug-discovery
#12
Renata Płocińska, Małgorzata Korycka-Machała, Przemysław Płociński, Jarosław Dziadek
Mycobacterium tuberculosis (M. tuberculosis), the causative agent of tuberculosis, is a leading infectious disease organism, causing millions of deaths each year. This serious pathogen has been greatly spread worldwide and recent years have observed an increase in the number of multi-drug resistant and totally drug resistant M. tuberculosis strains (WHO report, 2014). The danger of tuberculosis becoming an incurable disease has emphasized the need for the discovery of a new generation of antimicrobial agents...
January 30, 2017: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28126971/comparison-of-a-commercial-interferon-gamma-release-assay-and-tuberculin-skin-test-for-the-detection-of-latent-tuberculosis-infection-in-hong-kong-arthritis-patients-who-are-candidates-for-biologic-agents
#13
H So, C Sw Yuen, R Ml Yip
INTRODUCTION: It is universally agreed that screening for latent tuberculosis infection prior to biologic therapy is necessary, especially in endemic areas such as Hong Kong. There are still, however, controversies regarding how best to accomplish this task. The tuberculin skin test has been the routine screening tool for latent tuberculosis infection in Hong Kong for the past decade although accuracy is far from perfect, especially in patients who have been vaccinated with Bacillus Calmette-Guérin, who are immunocompromised, or who have atypical mycobacterium infection...
January 27, 2017: Hong Kong Medical Journal, Xianggang Yi Xue za Zhi
https://www.readbyqxmd.com/read/28119743/preventing-the-transmission-of-tuberculosis-in-health-care-settings-administrative-control
#14
REVIEW
Kyung-Wook Jo
It is well established that health care workers (HCWs) have a considerably higher risk of occupationally acquired tuberculosis (TB). To reduce the transmission of TB to HCWs and patients, TB infection control programs should be implemented in health care settings. The first and most important level of all protection and control programs is administrative control. Its goals are to prevent HCWs, other staff, and patients from being exposed to TB, and to reduce the transmission of infection by ensuring rapid diagnosis and treatment of affected individuals...
January 2017: Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28114976/close-contact-interferon-gamma-response-to-the-new-psts1-285-374-cpf10-a-preliminary-1-year-follow-up-study
#15
Leonardo Silva de Araujo, Nidai de Bárbara Moreira da Silva Lins, Janaina Aparecida Medeiros Leung, Fernanda Carvalho Queiroz Mello, Maria Helena Féres Saad
BACKGROUND: The available diagnostic tools for latent tuberculosis (TB) infection (LTBI) via interferon-gamma (IFN-g) release assays (IGRA) are based on ESAT6:CFP10 stimulation. However, the mycobacterial antigen PstS1 is also highly immunogenic and some of its fragments, such as PstS1(285-374), have shown higher immunoreactivity in LTBI than in active TB. PstS1(285-374), therefore, could increase the accuracy of the existing IGRA to detect LTBI. Thus, a new chimeric protein has recently been developed (PstS1(285-374):CFP10) showing potential for LTBI screening of recent close contacts (rCt) exposed to Mycobacterium tuberculosis...
January 23, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28102654/tuberculosis-and-tuberculin-skin-test-reactivity-in-pediatric-patients-with-celiac-disease
#16
Nafiye Urganci, Derya Kalyoncu
BACKGROUND: The aim of the study was to determine tuberculin skin test reactivity and associated factors in pediatric patients with celiac disease (CD). METHODS: Tuberculin skin test (TST) was performed on 28 patients with CD aged from 1 year to 15 years (mean, 6.64±4.8) and 28 healthy age and sex-matched children. The association between TST reactivity and parameters such as age, gender, malnutrition, clinical presentation, compliance to gluten free diet and response to hepatitis A and B vaccinations were determined...
February 2017: Minerva Pediatrica
https://www.readbyqxmd.com/read/28087945/innate-immune-responses-to-tuberculosis
#17
Jeffrey S Schorey, Larry S Schlesinger
Tuberculosis remains one of the greatest threats to human health. The causative bacterium, Mycobacterium tuberculosis, is acquired by the respiratory route. It is exquisitely adapted to humans and is a prototypic intracellular pathogen of macrophages, with alveolar macrophages being the primary conduit of infection and disease. However, M. tuberculosis bacilli interact with and are affected by several soluble and cellular components of the innate immune system which dictate the outcome of primary infection, most commonly a latently infected healthy human host, in whom the bacteria are held in check by the host immune response within the confines of tissue granuloma, the host histopathologic hallmark...
December 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28086846/stochastic-agent-based-modeling-of-tuberculosis-in-canadian-indigenous-communities
#18
Ashleigh R Tuite, Victor Gallant, Elaine Randell, Annie-Claude Bourgeois, Amy L Greer
BACKGROUND: In Canada, active tuberculosis (TB) disease rates remain disproportionately higher among the Indigenous population, especially among the Inuit in the north. We used mathematical modeling to evaluate how interventions might enhance existing TB control efforts in a region of Nunavut. METHODS: We developed a stochastic, agent-based model of TB transmission that captured the unique household and community structure. Evaluated interventions included: (i) rapid treatment of active cases; (ii) rapid contact tracing; (iii) expanded screening programs for latent TB infection (LTBI); and (iv) reduced household density...
January 13, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28079759/the-quantiferon-tb-gold-in-tube-assay-in-neuro-ophthalmology
#19
Leanne M Little, Mohammed Rigi, Ayman Suleiman, Stacy V Smith, Edward A Graviss, Rod Foroozan, Andrew G Lee
BACKGROUND: Although QuantiFERON-TB Gold In-Tube (QFT-GIT) testing is regularly used to detect infection with Mycobacterium tuberculosis, its utility in a patient population with a low risk for tuberculosis (TB) has been questioned. The following is a cohort study analyzing the efficacy of QFT-GIT testing as a method for detection of active TB disease in low-risk individuals in a neuro-ophthalmologic setting. METHODS: Ninety-nine patients from 2 neuro-ophthalmology centers were identified as having undergone QFT-GIT testing between January 2012 and February 2016...
January 11, 2017: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/28076011/pulmonary-tuberculosis-role-of-radiology-in-diagnosis-and-management
#20
Arun C Nachiappan, Kasra Rahbar, Xiao Shi, Elizabeth S Guy, Eduardo J Mortani Barbosa, Girish S Shroff, Daniel Ocazionez, Alan E Schlesinger, Sharyn I Katz, Mark M Hammer
Tuberculosis is a public health problem worldwide, including in the United States-particularly among immunocompromised patients and other high-risk groups. Tuberculosis manifests in active and latent forms. Active disease can occur as primary tuberculosis, developing shortly after infection, or postprimary tuberculosis, developing after a long period of latent infection. Primary tuberculosis occurs most commonly in children and immunocompromised patients, who present with lymphadenopathy, pulmonary consolidation, and pleural effusion...
January 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
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