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https://www.readbyqxmd.com/read/28723466/clinical-case-discussion-mycotic-aortic-aneurysm-and-psoas-abscess-as-a-complication-of-bacillus-calmette-gu%C3%A3-rin-instillations
#1
A C Witjens, J A Witjes
After an infectious complication caused by bacillus Calmette-Guérin (BCG), consider a dose reduction. Treatment of a mycotic aneurysm with an endostent seems safe; however, continuation of BCG after mycotic aneurysm treatment is not advised.
October 2016: European Urology Focus
https://www.readbyqxmd.com/read/28720750/tuberculous-psoas-abscess-and-worsening-vascular-aneurysm-all-from-bacillus-calmette-guerin-bcg-therapy
#2
Emmanuel Okon, Janelle Stearns, Arun Kumar Durgam
BACKGROUND Intravesical bacillus Calmette-Guerin (BCG) is used in the treatment and prophylaxis of carcinoma in situ of the urinary bladder and for the prophylaxis of primary or recurrent stage Ta and T1 papillary tumors following transurethral resection. Significant systemic complications are rare but have been reported. CASE REPORT We describe this case of Mycobacterium bovis psoas abscess and worsening abdominal aortic aneurysm following BCG therapy for bladder cancer. A 76-year-old male presented with a fever of a few days...
July 19, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28719821/bcg-old-workhorse-new-skills
#3
REVIEW
M Gengenbacher, N E Nieuwenhuizen, She Kaufmann
Bacille Calmette-Guérin (BCG), the only tuberculosis (TB) vaccine in clinical practice, has limitations in efficacy, immunogenicity and safety. Much current TB vaccine research focuses on engineering live mycobacteria to interfere with phagosome biology and host intracellular pathways including apoptosis and autophagy, with candidates such as BCG Δzmp1, BCG ΔureC::hly, BCG::ESX-1(Mmar), Mtb ΔphoP ΔfadD26, Mtb ΔRD1 ΔpanCD and M. smegmatis Δesx-3::esx-3(Mtb) in the development pipeline. Correlates of protection in preclinical studies include increased central memory CD4(+) T cells and recruitment of antigen-specific T cells to the lungs, with mucosal vaccination found to be superior to parenteral vaccination...
July 15, 2017: Current Opinion in Immunology
https://www.readbyqxmd.com/read/28714174/immunological-properties-and-protective-efficacy-of-a-single-mycobacterial-antigen-displayed-on-polyhydroxybutyrate-beads
#4
Patricia Rubio-Reyes, Natalie A Parlane, Bryce M Buddle, D Neil Wedlock, Bernd H A Rehm
In 2015, there were an estimated 10.4 million new tuberculosis (TB) cases and 1.4 million deaths worldwide. Bacille Calmette-Guérin (BCG), an attenuated strain of Mycobacterium bovis, is the vaccine available against TB, but it is insufficient for global TB control. This study evaluated the immunogenicity of the Mycobacterium tuberculosis antigen Rv1626 in mice while assessing the effect of co-delivering either Cpe30 (immunostimulatory peptide), CS.T3378-395 (promiscuous T helper epitope) or flagellin (TLR5 agonist) or a combination of all three immunostimulatory agents...
July 17, 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28713817/generation-of-monoclonal-antibodies-against-ag85a-antigen-of-mycobacterium-tuberculosis-and-application-in-a-competitive-elisa-for-serodiagnosis-of-bovine-tuberculosis
#5
Zhengzhong Xu, Ting Hu, Aihong Xia, Xin Li, Ze Liu, Jingjing Min, Jingjing He, Chuang Meng, Yuelan Yin, Xiang Chen, Xinan Jiao
The Ag85 complex functions as the main secretory protein of Mycobacterium tuberculosis (M. tuberculosis) and BCG. This complex is composed of the proteins, Ag85A, Ag85B, and Ag85C, with Ag85A thought to play the largest role within the complex. However, the lack of commercially available monoclonal antibodies (mAbs) against Ag85A still hinders the biological and applicative research on this protein. In this study, we developed and identified anti-Ag85A mAbs, and five hybridoma cells were established. Using the indirect immunofluorescence test, we found that two anti-Ag85A mAbs did not cross-react with Ag85B and/or Ag85C...
2017: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/28712162/bcg-vaccine-an-innovation-for-diabetes-treatment-in-pakistan
#6
EDITORIAL
Zohair Lilani, Afrinah Ahmed, Rabbia Tazeem, Erum Naeem
No abstract text is available yet for this article.
January 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28711483/a-multistage-subunit-vaccine-effectively-protects-mice-against-primary-progressive-tuberculosis-latency-and-reactivation
#7
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
#8
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/28706226/reactogenicity-to-major-tuberculosis-antigens-absent-in-bcg-is-linked-to-improved-protection-against-mycobacterium-tuberculosis
#9
Nacho Aguilo, Jesus Gonzalo-Asensio, Samuel Alvarez-Arguedas, Dessislava Marinova, Ana Belen Gomez, Santiago Uranga, Ralf Spallek, Mahavir Singh, Regine Audran, François Spertini, Carlos Martin
MTBVAC is a live-attenuated Mycobacterium tuberculosis vaccine, currently under clinical development, that contains the major antigens ESAT6 and CFP10. These antigens are absent from the current tuberculosis vaccine, BCG. Here we compare the protection induced by BCG and MTBVAC in several mouse strains that naturally express different MHC haplotypes differentially recognizing ESAT6 and CFP10. MTBVAC induces improved protection in C3H mice, the only of the three tested strains reactive to both ESAT6 and CFP10...
July 14, 2017: Nature Communications
https://www.readbyqxmd.com/read/28705514/bacillus-calmette-gu%C3%A3-rin-bcg-vaccination-patterns-in-the-province-of-qu%C3%A3-bec-canada-1956-1974
#10
Marie-Claude Rousseau, Florence Conus, Khady Kâ, Mariam El-Zein, Marie-Élise Parent, Dick Menzies
BACKGROUND: In the province of Québec, Canada, the Bacillus Calmette-Guérin (BCG) vaccine was offered to newborns and school-age children from the 1950s to mid-1970s in an organized tuberculosis prevention program. OBJECTIVE: We aimed to describe the annual rates of skin test administration, proportion of skin tests that were positive, and rates of BCG vaccination from 1956 to 1974 according to age, sex, and administrative region. METHODS: For rates, numerators were extracted from the Québec BCG Vaccination Registry whereas population denominators were obtained from the Canadian Census and governmental publications...
July 10, 2017: Vaccine
https://www.readbyqxmd.com/read/28702363/a-case-of-bacillus-calmette-gu%C3%A3-rin-cystitis-diagnosed-with-a-novel-loop-mediated-isothermal-amplification-method
#11
Kazuyoshi Tachi, Akinori Sato, Yuji Kouzaki, Takuya Maeda, Akihiko Kawana, Tomohiko Asano
Intravesical bacillus Calmette-Guérin (BCG) instillation is broadly used to prevent bladder cancer recurrence or to treat carcinoma in situ. BCG infection is rare but can cause serious problems because this strain has intrinsic resistance to pyrazinamide, a first-line anti-tuberculosis drug. Furthermore, there had been no specific and easy procedure accurately diagnosing BCG infection. In this case report we present the first case of BCG cystitis diagnosed with a newly developed easy-to-use diagnostic procedure using the loop-mediated isothermal amplification method...
September 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28701467/the-cross-species-mycobacterial-growth-inhibition-assay-mgia-project-2010-2014
#12
Michael J Brennan, Rachel Tanner, Sheldon Morris, Thomas J Scriba, Jacqueline M Achkar, Andrea Zelmer, David Hokey, Angelo Izzo, Sally Sharpe, Ann Williams, Adam Penn-Nicholson, Mzwandile Erasmus, Elena Stylianou, Daniel F Hoft, Helen McShane, Helen A Fletcher
The development of a functional biomarker assay in the tuberculosis (TB) field would be widely recognized as a major advance in efforts to efficiently develop and test novel TB vaccine candidates. We present preliminary studies using mycobacterial growth inhibition assays (MGIAs) to detect a BCG vaccine response across species, and extend this work to determine if a standardized MGIA can be applied in characterizing new generation TB vaccines. The comparative MGIA studies reviewed here aimed to evaluate robustness, reproducibility, and ability to reflect in vivo responses...
July 12, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28698665/antigens-rv0310c-and-rv1255c-are-promising-novel-biomarkers-for-the-diagnosis-of-mycobacterium-tuberculosis-infection
#13
Liulin Luo, Lin Zhu, Jun Yue, Jianping Liu, Guoyuan Liu, Xuelian Zhang, Honghai Wang, Ying Xu
This study aimed to identify novel immunogenic epitopes from Mycobacterium tuberculosis (MTB) that could be used in tuberculosis (TB) diagnostics. To determine the diagnostic potential of mycobacterial antigens in serodiagnosis of TB, 256 patients were enrolled in a study and divided into two groups: 126 smear-positive pulmonary TB patients (SPPT) and 130 smear-negative pulmonary TB patients (SNPT); 152 bacillus Calmette-Guerin (BCG)-vaccinated healthy people were used as a control. Murine results showed that antigens Rv0310c-E from RD 8 and Rv1255c-E from RD 10 were strongly immunogenic to Th1 cells and induced a great humoral response...
July 12, 2017: Emerging Microbes & Infections
https://www.readbyqxmd.com/read/28698569/ahpc-of-the-mycobacterial-antioxidant-defense-system-and-its-interaction-with-its-reducing-partner-thioredoxin-c
#14
Chui Fann Wong, Joon Shin, Malathy Sony Subramanian Manimekalai, Wuan Geok Saw, Zhan Yin, Shashi Bhushan, Arvind Kumar, Priya Ragunathan, Gerhard Grüber
Despite the highly oxidative environment of the phagosomal lumen, the need for maintaining redox homeostasis is a critical aspect of mycobacterial biology. The pathogens are equipped with the sophisticated thioredoxin- (Trx) and peroxiredoxin system, including TrxC and the alkyl hydroperoxide reductase subunit C (AhpC), whereby TrxC is one of the reducing partners of AhpC. Here we visualize the redox modulated dodecamer ring formation of AhpC from Mycobacterium bovis (BCG strain; MbAhpC) using electron microscopy and present novel insights into the unique N-terminal epitope (40 residues) of mycobacterial AhpC...
July 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28694418/-a-case-of-long-survival-in-aggressively-growing-small-cell-carcinoma-of-the-bladder-successfully-treated-by-combined-chemotherapy-of-methotrexate-etoposide-and-cisplatin
#15
Ryosuke Jikuya, Kouta Washimi, Masato Yasui, Akihito Hashizume, Tomoyuki Tatenuma, Nobuhiko Mizuno, Kentaro Muraoka, Susumu Umemoto, Masaki Kawai, Takeshi Kishida
A 74-year-old man underwent transurethral resection for a bladder tumor (TURBT). The pathological diagnosis was urothelial carcinoma, grade 3 pT2 at least. He desired preservation of the bladder. Thus, MEC (methotrexate 100-150 mg/body (day 1), etoposide 100 mg/m2 (day 2-4), cisplatin 20 mg/m2 (day 2-6)) chemotherapy was administered for 2 courses. The next year, he had a relapse in the bladder, and the pathological diagnosiswasurothelial carcinoma, grade 2 pTa and pTis. He underwent Calmette-Guerin Bacillus (BCG) immunotherapy for 6 courses that resulted in a complete response without recurrence for 6 years...
June 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28689652/field-evaluation-of-candidate-baits-for-oral-delivery-of-bcg-vaccine-to-european-badgers-meles-meles
#16
Kate Palphramand, Richard Delahay, Andrew Robertson, Sonya Gowtage, Gareth A Williams, Robbie A McDonald, Mark Chambers, Stephen P Carter
The control of tuberculosis (TB) in cattle in the UK and Ireland is compromised by transmission of Mycobacterium bovis to cattle from the European badger (Meles meles), which acts as a wildlife reservoir. Vaccination of badgers could potentially contribute to TB control but the only licensed vaccine is injectable BadgerBCG which requires the live-capture of badgers. Current research is aimed at developing an oral TB vaccine (where vaccine is contained within bait) that is intended to be more cost-effective to deploy over large areas...
July 6, 2017: Vaccine
https://www.readbyqxmd.com/read/28689112/selection-of-a-new-mycobacterium-tuberculosis-h37rv-aptamer-and-its-application-in-the-construction-of-a-swcnt-aptamer-au-ide-mspqc-h37rv-sensor
#17
XiaoQing Zhang, Ye Feng, QiongQiong Yao, Fengjiao He
A rapid and accurate detection method for Mycobacterium tuberculosis (M. tuberculosis) is essential for effectively treating tuberculosis. However, current detection methods cannot meet these clinical requirements because the methods are slow or of low specificity. Consequently, a new highly specific ssDNA aptamer against M. tuberculosis reference strain H37Rv was selected by using the whole-cell systematic evolution of ligands by exponential enrichment technique. The selected aptamer was used to construct a fast and highly specific H37Rv sensor...
June 20, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28689009/survival-of-mycobacterium-tuberculosis-and-mycobacterium-bovis-bcg-in-lysosomes-in%C3%A2-vivo
#18
Varadharajan Sundaramurthy, Hannelie Korf, Ashima Singla, Nicole Scherr, Liem Nguyen, Giorgio Ferrari, Regine Landmann, Kris Huygen, Jean Pieters
Mycobacterium tuberculosis is one of the most successful pathogens known, having infected more than a third of the global population. An important strategy for intracellular survival of pathogenic mycobacteria relies on their capacity to resist delivery to lysosomes, instead surviving within macrophage phagosomes. Several factors of both mycobacterial and host origin have been implicated in this process. However, whether or not this strategy is employed in vivo is not clear. Here we show that in vivo, following intravenous infection, M...
July 6, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/28687365/efficacy-of-botulinum-toxin-a-for-the-treatment-of-bladder-pain-syndrome-a-systematic-review
#19
D C Ochoa Vargas, H A García Perdómo
OBJECTIVES: To determine the efficacy and safety of BTX-A, compared with other interventions for the treatment of BPS to improve quality of life. METHODS: This systematic review fulfils all the requirements of the Cochrane manual and PRISMA reporting guidelines. The PROSPERO registration number is: CRD42016039480.Clinical trials without language discrimination were included. BPS patients over 18 y/o that were treated with BTX-A were included. Studies were searched in published databases and no published literature from inception to the present day...
July 4, 2017: Actas Urologicas Españolas
https://www.readbyqxmd.com/read/28686691/use-of-fecal-volatile-organic-compound-analysis-to-discriminate-between-non-vaccinated-and-bcg-vaccinated-cattle-prior-to-and-after-mycobacterium-bovis-challenge
#20
Christine K Ellis, Somchai Rice, Devin Maurer, Randal Stahl, W Ray Waters, Mitchell V Palmer, Pauline Nol, Jack C Rhyan, Kurt C VerCauteren, Jacek A Koziel
Bovine tuberculosis is a zoonotic disease of global public health concern. Development of diagnostic tools to improve test accuracy and efficiency in domestic livestock and enable surveillance of wildlife reservoirs would improve disease management and eradication efforts. Use of volatile organic compound analysis in breath and fecal samples is being developed and optimized as a means to detect disease in humans and animals. In this study we demonstrate that VOCs present in fecal samples can be used to discriminate between non-vaccinated and BCG-vaccinated cattle prior to and after Mycobacterium bovis challenge...
2017: PloS One
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