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https://www.readbyqxmd.com/read/28102654/tuberculosis-and-tuberculin-skin-test-reactivity-in-pediatric-patients-with-celiac-disease
#1
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/28101015/m2-polarized-macrophages-compose-lupus-vulgaris-arising-from-a-bacillus-calmette-gu%C3%A3-rin-vaccination-site
#2
Yota Sato, Taku Fujimura, Sadanori Furudate, Aya Kakizaki, Osamu Iizawa, Setsuya Aiba
Since bacillus Calmette-Guérin (BCG) is an attenuated strain of Mycobacterium bovis, lupus vulgaris (LV) is reported as one of the rare complications after BCG vaccination, correlating with immunosuppression in the lesional skin. In this report, we describe a case of LV arising from the BCG vaccination site 22 years after vaccination. Interestingly, in the present case, granuloma cells were composed of M2-polarized macrophages. Our case might explain the contribution of M2-polarized macrophages to the biology of LV arising from a BCG vaccination site...
May 2016: Case Reports in Dermatology
https://www.readbyqxmd.com/read/28095608/esx-1-and-phthiocerol-dimycocerosates-of-mycobacterium-tuberculosis-act-in-concert-to-cause-phagosomal-rupture-and-host-cell-apoptosis
#3
Jacques Augenstreich, Ainhoa Arbues, Roxane Simeone, Evert Haanappel, Alice Wegener, Fadel Sayes, Fabien Le Chevalier, Christian Chalut, Wladimir Malaga, Christophe Guilhot, Roland Brosch, Catherine Astarie-Dequeker
Although phthiocerol dimycocerosates (DIM) are major virulence factors of Mycobacterium tuberculosis (Mtb), the causative agent of human tuberculosis, little is known about their mechanism of action. Localized in the outer membrane of mycobacterial pathogens, DIM are predicted to interact with host cell membranes. Interaction with eukaryotic membranes is a property shared with another virulence factor of Mtb, the early secretory antigenic target EsxA (also known as ESAT-6). This small protein, which is secreted by the type VII secretion system ESX-1 (T7SS/ESX-1), is involved in phagosomal rupture and cell death induced by virulent mycobacteria inside host phagocytes...
January 17, 2017: Cellular Microbiology
https://www.readbyqxmd.com/read/28092959/mixed-vaccination-strategy-for-the-control-of-tuberculosis-a-case-study-in-china
#4
Siyu Liu, Yong Li, Yingjie Bi, Qingdao Huang
This study first presents a mathematical model of TB transmission considering BCG vaccination compartment to investigate the transmission dynamics nowadays. Based on data reported by the National Bureau of Statistics of China, the basic reproduction number is estimated approximately as R0=1.1892. To reach the new End TB goal raised by WHO in 2015, considering the health system in China, we design a mixed vaccination strategy. Theoretical analysis indicates that the infectious population asymptotically tends to zero with the new vaccination strategy which is the combination of constant vaccination and pulse vaccination...
June 1, 2017: Mathematical Biosciences and Engineering: MBE
https://www.readbyqxmd.com/read/28091914/altered-liver-proteoglycan-glycosaminoglycan-structure-as-a-manifestation-of-extracellular-matrix-remodeling-upon-bcg-induced-granulomatosis-in-mice
#5
L B Kim, V A Shkurupy, A N Putyatina
Experimental BCG-induced granulomatosis in mice was used to study changes in the dynamics of individual liver proteoglycan components reflecting phasic extracellular matrix remodeling, determined by the host-parasite interaction and associated with granuloma development. In the early BCG-granulomatosis period, the increase in individual proteoglycan components promotes granuloma formation, providing conditions for mycobacteria adhesion to host cells, migration of phagocytic cells from circulation, and cell-cell interaction leading to granuloma development and fibrosis...
January 2017: Bulletin of Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28087924/clinical-testing-of-tuberculosis-vaccine-candidates
#6
Mark Hatherill, Dereck Tait, Helen McShane
It is almost 100 years since the development of bacille Calmette-Guérin (BCG), the only licensed vaccine against tuberculosis (TB). While BCG does confer consistent protection against disseminated disease, there is an urgent need for a more effective vaccine against pulmonary disease. There are several indications for such an improved vaccine, including prevention of infection, prevention of disease, and a therapeutic vaccine to prevent recurrent disease. The two main approaches to TB vaccine development are developing an improved whole mycobacterial priming agent to replace BCG and/or developing a subunit booster vaccine to be administered after a BCG or BCG replacement priming vaccination...
October 2016: Microbiology Spectrum
https://www.readbyqxmd.com/read/28087528/engineering-mycobacteria-for-the-production-of-self-assembling-biopolyesters-displaying-mycobacterial-antigens-for-use-as-tuberculosis-vaccine
#7
Jason W Lee, Natalie A Parlane, Bernd H A Rehm, Bryce M Buddle, Axel Heiser
: Tuberculosis (TB) is a disease caused by Mycobacterium tuberculosis or Mycobacterium bovis and still remains one of the world's biggest global health burdens. Recently, engineered polyhydroxyalkanoate (PHA) biobeads produced in both E. coli and Lactococcus lactis displaying mycobacterial antigens were found to induce significant cell mediated immune responses in mice. We observed that such PHA beads contained host cell proteins as impurities which we hypothesized to have the potential to induce immunity...
January 13, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28087302/the-long-term-effect-of-bacille-calmette-gu%C3%A3-rin-vaccination-on-tuberculin-skin-testing-a-55-year-follow-up-study
#8
James D Mancuso, Rupal M Mody, Cara H Olsen, Lee H Harrison, Mathuram Santosham, Naomi E Aronson
BACKGROUND: Bacille Calmette-Guérin vaccination (BCG) is known to cause false positive tuberculin skin test (TST) results from cross-reactions to mycobacterial antigens. However, the duration of BCG influence on the TST is poorly characterized. The objective of the study was to assess the long-term effect of BCG vaccination on TST reactivity. METHODS: Data on TST reactivity were prospectively collected during 1935-47 as part of a clinical trial among American Indians / Alaskan Natives and retrospectively thereafter between 1948 and 1998...
January 10, 2017: Chest
https://www.readbyqxmd.com/read/28077441/predicting-ifn-%C3%AE-responses-after-bcg-vaccination-in-humans-from-macaques-a-proof-of-concept-study-of-immunostimulation-immunodynamic-modelling-methods
#9
Sophie J Rhodes, Charlotte Sarfas, Gwenan M Knight, Andrew White, Ansar A Pathan, Helen McShane, Thomas G Evans, Helen Fletcher, Sally Sharpe, Richard G White
INTRODUCTION: Macaques play a central role in human tuberculosis(TB) vaccine development. Immune and challenge responses differ across macaque and human subpopulations. We determined which macaque subpopulations best predicted immune responses in different human subpopulations, using novel immunostimulation/immunodynamic modelling methods in a proof of concept study. METHODS: Data on IFN-γ secreting CD4+ T cells over time after recent BCG vaccination were available for 55 humans and 81 macaques...
January 11, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28077246/testing-of-a-palatable-bait-and-compatible-vaccine-carrier-for-the-oral-vaccination-of-european-badgers-meles-meles-against-tuberculosis
#10
Sonya Gowtage, Gareth A Williams, Ray Henderson, Paul Aylett, Duncan MacMorran, Si Palmer, Andy Robertson, Sandrine Lesellier, Stephen P Carter, Mark A Chambers
The oral vaccination of wild badgers (Meles meles) with live Bacillus Calmette-Guérin (BCG) is one of the tools being considered for the control of bovine tuberculosis (caused by Mycobacterium bovis) in the UK. The design of a product for oral vaccination requires that numerous, and often competing, conditions are met. These include the need for a highly palatable, but physically stable bait that will meet regulatory requirements, and one which is also compatible with the vaccine formulation; in this case live BCG...
January 9, 2017: Vaccine
https://www.readbyqxmd.com/read/28076390/il-37-confers-protection-against-mycobacterial-infection-involving-suppressing-inflammation-and-modulating-t-cell-activation
#11
Haipeng Liu, Ruijuan Zheng, Peng Wang, Hua Yang, Xin He, Qun Ji, Wenjuan Bai, Hao Chen, Jianxia Chen, Wenxia Peng, Siyu Liu, Zhonghua Liu, Baoxue Ge
Interleukin-37 (IL-37), a novel member of the IL-1 family, plays fundamental immunosuppressive roles by broadly reducing both innate inflammation and acquired immunity, but whether it is involved in the pathogenesis of tuberculosis (TB) has not been clearly elucidated. In this study, single nucleotide polymorphism (SNP) analysis demonstrated an association of the genetic variant rs3811047 of IL-37 with TB susceptibility. In line with previous report, a significant elevated IL-37 abundance in the sera and increased expression of IL-37 protein in the peripheral blood mononuclear cells (PBMC) were observed in TB patients in comparison to healthy controls...
2017: PloS One
https://www.readbyqxmd.com/read/28074660/optimizing-the-management-of-children-with-latent-tuberculosis-infection
#12
E Venturini, C Tersigni, E Chiappini, M de Martino, L Galli
The management of latent tuberculosis (LTBI) in children represents an important issue for paediatricians because of the disease burden, the lack of a gold standard for the diagnosis and the high annual risk of progression to active disease. Areas covered: A review of English language articles on LTBI in children, published between the 1(st) of January 2010 and the 1(st) of July 2016, was conducted using multiple keywords and standardized terminology in PubMed database. This review provides an updated overview of the available tests for LTBI diagnosis in children, management strategies and treatment options...
January 11, 2017: Expert Review of Anti-infective Therapy
https://www.readbyqxmd.com/read/28073902/state-of-harmonization-of-24-serum-albumin-measurement-procedures-and-implications-for-medical-decisions
#13
Lorin M Bachmann, Min Yu, James C Boyd, David E Bruns, W Greg Miller
BACKGROUND: Measurements of serum and plasma albumin are widely used in medicine, including as indicators of quality of patient care in renal dialysis centers. METHODS: Pools were prepared from residual patient serum (n = 50) and heparin plasma (n = 48) from patients without renal disease, and serum from patients with kidney failure before hemodialysis (n = 53). Albumin was measured in all samples and in ERM-DA470k/IFCC reference material (RM) by 3 immunochemical, 9 bromcresol green (BCG), and 12 bromcresol purple (BCP) methods...
January 10, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/28072958/-investigation-on-immunization-program-coverage-rate-and-its-safety-in-children-with-tuberous-sclerosis
#14
Y Gao, L P Zou, M N Zhang, L Y Pang, Y Y Wang, S F Ma, L L Huang
Objective: To investigate the status of immunization of National Immunization Program (NIP) and its adverse reaction rate in children with tuberous sclerosis. Method: Questionnaire survey was adopted to identify the vaccination coverage and its adverse events; 72 cases of children with tuberous sclerosis and 78 normal controls (healthy children completing age-appropriate NIP) admitted to Chinese People's Liberation Army General Hospital from December 2014 to November 2015 were involved into this study. Result: The age-appropriate NIP coverage rate of tuberous sclerosis was 36%(26/72)...
January 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28067662/electrocatalytic-degradation-of-bromocresol-green-wastewater-on-ti-sno2-ruo2-electrode
#15
Hongmei Bai, Ping He, Jingchao Chen, Kaili Liu, Hong Lei, Xiaojuan Zhang, Faqin Dong, Hong Li
Thermal decomposition method was employed to prepare a Ti/SnO2-RuO2 electrode, on which electrocatalytic degradation of bromocresol green (BCG) was investigated in detail. Scanning electron microscopy, an X-ray diffraction analyzer and an X-ray fluorescence spectrometer were adopted to characterize the morphology, crystal structure and element analysis of the as-prepared Ti/SnO2-RuO2 electrode. It was indicated that the Ti/SnO2-RuO2 electrode had a 'cracked-mud' structure and exhibited a superior specific surface area...
January 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
https://www.readbyqxmd.com/read/28065474/a-single-low-dose-of-a-cgmp-recombinant-bcg-vaccine-elicits-protective-t-cell-immunity-against-the-human-respiratory-syncytial-virus-infection-and-prevents-lung-pathology-in-mice
#16
Pablo F Céspedes, Emma Rey-Jurado, Janyra A Espinoza, Claudia A Rivera, Gisela Canedo-Marroquín, Susan M Bueno, Alexis M Kalergis
Human respiratory syncytial virus (hRSV) is a major health burden worldwide, causing the majority of hospitalizations in children under two years old due to bronchiolitis and pneumonia. HRSV causes year-to-year outbreaks of disease, which also affects the elderly and immunocompromised adults. Furthermore, both hRSV morbidity and epidemics are explained by a consistently high rate of re-infections that take place throughout the patient life. Although significant efforts have been invested worldwide, currently there are no licensed vaccines to prevent hRSV infection...
January 5, 2017: Vaccine
https://www.readbyqxmd.com/read/28065394/characterizing-intermediate-risk-non-muscle-invasive-bladder-cancer-implications-for-the-definition-of-intermediate-risk-and-treatment-strategy
#17
Kazuhiro Matsumoto, Eiji Kikuchi, Yoshinori Yanai, Nozomi Hayakawa, Yujiro Ito, Takahiro Maeda, Hirohiko Nagata, Akira Miyajima, Mototsugu Oya
PURPOSE: Patients with intermediate-risk non-muscle-invasive bladder cancer have traditionally been defined as those not included in the low- or high-risk groups. Therefore, the intermediate-risk group consists of heterogeneous patients. MATERIALS AND METHODS: We reviewed 326 patients diagnosed with intermediate-risk tumors. We subclassified these patients into 3 groups according to their clinical courses. Group A included patients with initial and multiple low-grade tumors (N = 170)...
January 3, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28061955/the-role-of-cd30-and-cd153-cd30l-in-the-anti-mycobacterial-immune-response
#18
REVIEW
Nancy D Marín, Luis F García
The establishment of a protective T-cell response against mycobacterial infections involves different co-stimulatory molecules and their respective ligands. Among these molecules the Tumor Necrosis Factor Receptor Super-family (TNFRSF) and the Tumor Necrosis Factor Super-family (TNFSF) are known to be important members. This review analyzes the evidence that CD30 and CD153 (CD30L), members of the TNFRSF and TNSF, play key roles in the T cell-dependent anti-mycobacterial immune response. Mice deficient in either CD30 or CD153, or treated with antibodies blocking the effects or CD30 and CD153, and infected with M...
January 2017: Tuberculosis
https://www.readbyqxmd.com/read/28043633/development-of-escherichia-coli-and-mycobacterium-smegmatis-recombinants-expressing-major-mycobacterium-tuberculosis-specific-antigenic-proteins
#19
Hanady A Amoudy, Hussain A Safar, Abu S Mustafa
OBJECTIVE/BACKGROUND: Mycobacterium tuberculosis is an obligate pathogenic bacterial species in the family Mycobacteriaceae and the causative agent of most tuberculosis (TB) cases. Until today, the only approved TB vaccine is Bacille Calmette Guerin (BCG), which has been used since 1921. While BCG provides fairly effective protection for infants and young children, its efficacy in adults is variable around the world. This could be due to several parameters including strains of the vaccine and exposure of individuals to different environmental bacterial infections...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043615/what-can-we-learn-from-the-past-a-pediatrician-s-view
#20
Margareta Eriksson, Rutger Bennet
When the tuberculosis epidemic reached its peak in central Europe in the 1900s (not until the 2000s in sub-Saharan Africa), both contained and disseminated tuberculosis was mainly regarded as a childhood disease. From 1920, before the use of the Bacillus Calmette-Guérin (BCG) vaccine and the possibility of drug treatment, there was a drastic decline in the rate of tuberculosis incidence in the Western world. In 1970, the case rate had declined in Sweden from 500/100,000 individuals to 1/100,000 individuals...
December 2016: International Journal of Mycobacteriology
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