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https://www.readbyqxmd.com/read/29145844/development-and-evaluation-of-an-interferon-gamma-assay-for-the-diagnosis-of-tuberculosis-in-red-deer-experimentally-infected-with-mycobacterium-bovis
#1
María Ángeles Risalde, Jobin Thomas, Iker Sevilla, Miriam Serrano, Jose Antonio Ortíz, Joseba Garrido, Mercedes Domínguez, Lucas Domínguez, Christian Gortázar, Jose Francisco Ruíz-Fons
BACKGROUND: Red deer (Cervus elaphus) is regarded as an epidemiologically relevant host for Mycobacterium bovis (M. bovis) and closely related members of the Mycobacterium tuberculosis complex that cause animal tuberculosis (TB). The standard antemortem screening test for the detection of TB in deer is the intradermal tuberculin skin test, but the detection of interferon-gamma (IFNγ) produced by white blood cells exposed to M. bovis antigens can be used as an alternative or supplemental assay in most TB eradication/control programs...
November 16, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29145819/recurrent-tuberculosis-in-finland-1995-2013-a-clinical-and-epidemiological-cohort-study
#2
Virve Korhonen, Hanna Soini, Tuula Vasankari, Jukka Ollgren, Pieter W Smit, Petri Ruutu
BACKGROUND: We investigated the epidemiology and prevalence of potential risk factors of tuberculosis (TB) recurrence in a population-based registry cohort of 8084 TB cases between 1995 and 2013. METHODS: An episode of recurrent TB was defined as a case re-registered in the National Infectious Disease Register at least 360 days from the date of the initial registration. A regression model was used to estimate risk factors for recurrence in the national cohort...
November 16, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/29142798/verification-of-diagnosis-in-tuberculosis-a-case-report-and-discussion
#3
Amanda M Dave, Abed Adelrahman, Vishist Mehta, Stephen Cavalieri, Renuga Vivekanadan
Tuberculosis (TB), caused by strains of Mycobacterium tuberculosis complex (M. tuberculosis), is a pulmonary infection that is spread by airborne droplet transmission. The development and spread of drug-resistant strains of M. tuberculosisgreatly jeopardize TB control efforts. We report the case of a previously healthy 43-year-old male, visiting from China, who presented to the emergency department complaining of hemoptysis of 10 days' duration. Cultures were positive for acid fast bacteria and negative for fungi...
September 3, 2017: Curēus
https://www.readbyqxmd.com/read/29142348/-18-f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography-in-tuberculosis-spectrum-of-manifestations
#4
Krishan Kant Agarwal, Abhishek Behera, Rakesh Kumar, Chandrasekhar Bal
The objective of this article is to provide an illustrative tutorial highlighting the utility of (18)F-fluorodeoxyglucose-positron emission tomography/computed tomography ((18)F-FDG-PET/CT) imaging to detect spectrum of manifestations in patients with tuberculosis (TB). FDG-PET/CT is a powerful tool for early diagnosis, measuring the extent of disease (staging), and consequently for evaluation of response to therapy in patients with TB.
October 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/29142046/quantitative-analysis-of-interferon-%C3%AE-release-assay-response-in-children-with-latent-and-active-tuberculosis
#5
Giulia Lombardi, Roberta Petrucci, Ilaria Corsini, Maria Letizia Bacchi Reggiani, Francesca Visciotti, Filippo Bernardi, Maria Paola Landini, Salvatore Cazzato, Paola Dal Monte
The use of interferon-γ (IFN-γ) release assays (IGRAs) for the diagnosis of tuberculosis (TB) infection in children is still under debate because of concerns about their immature immune response.The aim of this study was to investigate quantitative values of QuantiFERON®-TB Gold In-Tube (QFT-IT), a commercially available IGRA, in a large cohort of children screened for TB infection.A retrospective analysis was conducted on samples from 517 children aged 0-14 years old at the Pediatric Unit of S. Orsola-Malpighi University Hospital of Bologna (Italy); quantitative responses to QFT-IT stimuli were analyzed according to diagnosis and age...
November 15, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/29140946/comparison-of-the-quantiferon-tb-gold-in-tube-assay-with-tuberculin-skin-test-for-the-diagnosis-of-latent-tuberculosis-infection-among-hiv-infected-and-uninfected-children
#6
Walter Dehority, Rolando M Viani, Maria Rosario G Araneta, Graciano Lopez, Stephen A Spector
BACKGROUND: Diagnosis of latent tuberculosis infection (LTBI) is facilitated by tuberculin skin testing (TST) or interferon-gamma release assays such as the QuantiFERON TB Gold In-Tube (QTF-GIT) assays. Limited data exist on the utility of interferon-gamma release assays in HIV-infected children, which may be falsely negative due to immunosuppression. METHODS: A cross-sectional study comparing TST to QTF-GIT for the diagnosis of suspected LTBI was performed in children in Tijuana, Mexico, and in San Diego, California...
December 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/29138284/rapid-diagnosis-of-pulmonary-tuberculosis-and-detection-of-drug-resistance-by-combined-simultaneous-amplification-testing-and-reverse-dot-blot
#7
Yiwen Chen, Lahong Zhang, Liquan Hong, Xian Luo, Juping Chen, Leiming Tang, Jiahuan Chen, Xia Liu, Zhaojun Chen
AIMS: Making a correct and rapid diagnosis is essential for managing pulmonary tuberculosis (PTB), particularly multidrug-resistant tuberculosis. We aimed to evaluate the efficacy of the combination of simultaneous amplification testing (SAT) and reverse dot blot (RDB) for the rapid detection of Mycobacterium tuberculosis (MTB) and drug-resistant mutants in respiratory samples. METHODS: 225 suspected PTB and 32 non-TB pulmonary disease samples were collected. All sputum samples were sent for acid-fast bacilli smear, SAT, culture and drug susceptibility testing (DST) by the BACTEC(TM) MGIT(TM) 960 system...
November 14, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/29137710/loop-mediated-isothermal-amplification-using-self-avoiding-molecular-recognition-systems-and-antarctic-thermal-sensitive-uracil-dna-glycosylase-for-detection-of-nucleic-acid-with-prevention-of-carryover-contamination
#8
Yi Wang, Dongxin Liu, Jianping Deng, Yan Wang, Jianguo Xu, Changyun Ye
Loop-mediated isothermal amplification (LAMP) is the most popular technique to amplify nucleic acid sequence without the use of temperature cycling. However, LAMP is often confounded by false-positive results, arising from interactions between (hetero-dimer) or within (self-dimerization) primers, off-target hybrids and carryover contaminants. Here, we devised a new LAMP technique that is self-avoiding molecular recognition system (SAMRS) components and antarctic thermal sensitive uracil-DNA-glycosylase (AUDG) enzyme-assisted, termed AUDG-SAMRS-LAMP...
December 15, 2017: Analytica Chimica Acta
https://www.readbyqxmd.com/read/29132287/a-qualitative-analysis-of-the-barriers-to-antiretroviral-therapy-initiation-among-children-2-to-18-months-of-age-in-swaziland
#9
Charisse V Ahmed, Pauline Jolly, Luz Padilla, Musa Malinga, Chantal Harris, Nobuhle Mthethwa, Inessa Ba, Amy Styles, Sarah Perry, Raina Brooks, Florence Naluyinda-Kitabire, Makhosini Mamba, Peter Preko
HIV/AIDS remains one of the leading causes of death among children under 5 years old in Swaziland. Although studies have shown that early initiation of infants and children diagnosed with HIV on antiretroviral therapy (ART) significantly reduces mortality, many children do not initiate ART until the later stages of disease. This study was designed to collect qualitative data from mothers and caregivers of HIV-positive children to identify the barriers to ART initiation. Focus group discussion (FGD) sessions were conducted in siSwati between July and September 2014 among caregivers of aged children 2-18 months in Swaziland who did or did not initiate ART between January 2011 and December 2012 after HIV DNA PCR-positive diagnosis of the infants...
December 2017: African Journal of AIDS Research: AJAR
https://www.readbyqxmd.com/read/29129474/-screening-program-for-tuberculosis-among-international-exchange-students-in-the-department-of-is%C3%A3-re
#10
M-V Albahary, F Blanc-Jouvan, C Recule, C Dubey, P Pavese
INTRODUCTION: France is a low-incidence country for tuberculosis (TB). Consequently screening is focused on high-risk populations, in particular migrants. The aim of this study was to evaluate the epidemiology of TB among international exchange students in the Department of Isère and the screening programs used. METHODS: We carried out an organizational audit based on interviews with physicians involved in the management of TB in Isère. We conducted a retrospective descriptive study based on a case series of foreign students treated for TB from 2003 to 2013 inclusively...
November 9, 2017: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/29124891/the-diagnostic-value-of-tissue-button-technique-for-specimen-accusation-during-endobronchial-ultrasound-guided-transbronchial-fine-needle-aspiration
#11
Oren Fruchter, Anna Breslavsky, Tatyana Brozgol, Anna Grossman, Kessi Mikhailova, Alexey Bugayov, Kassa Shimelis, Hananya Vaknine, Oleg Sukmanov
INTRODUCTION: The quality of tissue acquisition during Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a major determinant of the diagnostic yield of the procedure. In the tissue button (TB ) technique the retrieved cellular specimen is fixed in ethanol and subsequently scraped from slide using surgical blade into formaldehyde and processed like ordinary tissue biopsy thus potentially increasing its diagnostic value. OBJECTIVES: To retrospectively evaluate the diagnostic yield of a TB technique in patients undergoing EBUS-TBNA for various malignant and benign conditions...
November 10, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29122502/clinical-and-pathologic-analyses-of-tuberculosis-in-the-oral-cavity-report-of-11-cases
#12
Wu-Tong Ju, Yong Fu, Ying Liu, Yi-Ran Tan, Min-Jun Dong, Li-Zhen Wang, Jiang Li, Lai-Ping Zhong
OBJECTIVE: The aim of this study was to analyze tuberculosis (TB) in the oral cavity according to clinical appearance, clinical differential diagnosis, treatment, and outcome. STUDY DESIGN: We enrolled 11 patients with TB in the oral cavity between November 2012 and November 2016. Glossal lymphoid TB was excluded. Clinical symptoms, auxiliary examinations, treatments, and outcomes were recorded and analyzed. RESULTS: The study population comprised 6 men and 5 women, with a mean age of 59 years...
September 28, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29120678/patterns-of-uveitis-at-two-university-based-referral-centres-in-cape-town-south-africa
#13
Wilna Rautenbach, Jonel Steffen, Derrick Smit, Karin Lecuona, Tonya Esterhuizen
PURPOSE: To analyze the pattern of uveitis at two tertiary hospitals in South Africa which has a high prevalence of HIV, TB and syphilis. METHODS: Data of 198 patients were obtained retrospectively between August 2014 and August 2016, including patient demographics, clinical examination, special investigations and final diagnosis. RESULTS: Infectious uveitis was the most common aetiological category (47%), followed by idiopathic (34.8%) and non-infectious (18...
November 9, 2017: Ocular Immunology and Inflammation
https://www.readbyqxmd.com/read/29118861/lung-granuloma-a-clinicopathologic-study-of-158-cases
#14
Abdullah Al-Harbi, Salman Al-Otaibi, Abdelmonim Abdulrahman, Fares Al-Jahdali, Fahad Al-Harbi, Hana Bamefleh, Majed Gamdi, Hamdan Al-Jahdali
BACKGROUND AND AIMS: A granuloma is a common pathological diagnosis in lung biopsies and is caused by a variety of etiologies. The aim of this study was to assess the etiology and frequency of different cases of lung granulomas. METHODS: The medical records of all patients who had lung granulomas between 2005 and 2013 were retrospectively reviewed. Based on the histological features of the granulomas, along with the clinical, laboratory, and radiological findings, an attempt was made to identify the etiology of the granuloma in each case...
October 2017: Annals of Thoracic Medicine
https://www.readbyqxmd.com/read/29117352/using-patient-pathway-analysis-to-design-patient-centered-referral-networks-for-diagnosis-and-treatment-of-tuberculosis-the-case-of-the-philippines
#15
Celine Garfin, Mariquita Mantala, Rajendra Yadav, Christy L Hanson, Mike Osberg, Aaron Hymoff, Julia Makayova
Background: Tuberculosis (TB) is the 8th leading cause of death in the Philippines. A recent prevalence survey found that there were nearly 70% more cases of tuberculosis than previously estimated. Given these new data, the National TB Program (NTP), operating through a decentralized health system, identified about 58% of the estimated new drug-sensitive (DS) TB patients in 2016. However, the NTP only identified and commenced treatment for around 17% of estimated new drug-resistant patients...
November 6, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29117350/conducting-patient-pathway-analysis-to-inform-programming-of-tuberculosis-services-methods
#16
Christy L Hanson, Mike Osberg, Jessie Brown, George Durham, Daniel P Chin
Patient-centered care is a central pillar of the World Health Organization's End TB Strategy. Understanding where patients access health services is a first step to planning for the placement of services to meet patient needs and preferences. The patient-pathway analysis (PPA) methodology detailed in this article was developed to better understand the alignment between patient care seeking and tuberculosis service availability. A PPA describes the steps that people with tuberculosis take from the initial care visit to cure...
November 6, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29117342/the-south-african-tuberculosis-care-cascade-estimated-losses-and-methodological-challenges
#17
Pren Naidoo, Grant Theron, Molebogeng X Rangaka, Violet N Chihota, Louise Vaughan, Zameer O Brey, Yogan Pillay
Background: While tuberculosis incidence and mortality are declining in South Africa, meeting the goals of the End TB Strategy requires an invigorated programmatic response informed by accurate data. Enumerating the losses at each step in the care cascade enables appropriate targeting of interventions and resources. Methods: We estimated the tuberculosis burden; the number and proportion of individuals with tuberculosis who accessed tests, had tuberculosis diagnosed, initiated treatment, and successfully completed treatment for all tuberculosis cases, for those with drug-susceptible tuberculosis (including human immunodeficiency virus (HIV)-coinfected cases) and rifampicin-resistant tuberculosis...
November 6, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29116638/evolution-of-phenotypic-and-molecular-drug-susceptibility-testing
#18
Daniela M Cirillo, Paolo Miotto, Enrico Tortoli
Drug Resistant Tuberculosis (DRTB) is an emerging problem world-wide. In order to control the disease and decrease the number of cases overtime a prompt diagnosis followed by an appropriate treatment should be provided to patients. Phenotypic DST based on liquid automated culture has greatly reduced the time needed to generate reliable data but has the drawback to be expensive and prone to contamination in the absence of appropriate infrastructures. In the past 10 years molecular biology tools have been developed...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29116637/epidemiology-of-drug-resistant-tuberculosis
#19
Anna S Dean, Helen Cox, Matteo Zignol
As we move into the era of the Sustainable Development Goals (SDGs), the World Health Organization (WHO) has developed the End TB strategy 2016-2035 with a goal to end the global epidemic of tuberculosis (TB) by 2035. Achieving the targets laid out in the Strategy will require strengthening of the whole TB diagnosis and treatment cascade, including improved case detection, the establishment of universal drug susceptibility testing and rapid treatment initiation. An estimated 3.9% of new TB cases and 21% of previously treated cases had rifampicin-resistant (RR) or multidrug-resistant (MDR) TB in 2015...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29116218/improvement-in-clinical-outcome-and-infection-control-using-molecular-diagnostic-techniques-for-early-detection-of-mdr-tuberculous-spondylitis-a-multicenter-retrospective-study
#20
Wenjie Wu, Jingtong Lyu, Peng Cheng, Yuan Cheng, Zehua Zhang, Litao Li, Yonghong Zheng, Jianzhong Xu
There has been limited research on the therapeutic efficacy of molecular diagnosis of spinal tuberculosis. We attempted to determine whether the utilization of molecular diagnosis to detect multidrug-resistant spinal tuberculosis can improve clinical outcomes. A multicenter retrospective study was conducted from February 2009 to June 2015. Ninety-two consecutive culture-confirmed multidrug-resistant tuberculosis (MDR-TB) patients with spinal tuberculosis who were diagnosed clinically and by imaging were enrolled in the study...
November 8, 2017: Emerging Microbes & Infections
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