keyword
MENU ▼
Read by QxMD icon Read
search

Mycobacterium bovis

keyword
https://www.readbyqxmd.com/read/29346413/genetic-diversity-and-potential-routes-of-transmission-of-mycobacterium-bovis-in-mozambique
#1
Adelina Machado, Teresa Rito, Solomon Ghebremichael, Nuelma Muhate, Gabriel Maxhuza, Custodia Macuamule, Ivania Moiane, Baltazar Macucule, Angelica Suzana Marranangumbe, Jorge Baptista, Joaquim Manguele, Tuija Koivula, Elizabeth Maria Streicher, Robin Mark Warren, Gunilla Kallenius, Paul van Helden, Margarida Correia-Neves
Bovine tuberculosis is a zoonotic disease with largely unknown impact in Africa, with risk factors such as HIV and direct contact with animals or consumption of Mycobacterium bovis infected animal products. In order to understand and quantify this risk and design intervention strategies, good epidemiological studies are needed. Such studies can include molecular typing of M. bovis isolates. The aim of this study was to apply these tools to provide novel information concerning the distribution of bovine tuberculosis in cattle in Mozambique and thereby provide relevant information to guide policy development and strategies to contain the disease in livestock, and reduce the risk associated with transmission to humans...
January 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29345365/deletion-of-bcg-hip1-protease-enhances-dendritic-cell-and-cd4-t-cell-responses
#2
Erica Bizzell, Jonathan Kevin Sia, Melanie Quezada, Ana Enriquez, Maria Georgieva, Jyothi Rengarajan
Dendritic cells (DCs) play a key role in the generation of CD4 T cell responses to pathogens. Mycobacterium tuberculosis (Mtb) harbors immune evasion mechanisms that impair DC responses and prevent optimal CD4 T cell immunity. The vaccine strain Mycobacterium bovis Bacille Calmette-Guérin (BCG) shares many of the immune evasion proteins utilized by Mtb, but the role of these proteins in DC and T cell responses elicited by BCG is poorly understood. We previously reported that the Mtb serine protease, Hip1, promotes sub-optimal DC responses during infection...
December 28, 2017: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29345364/the-n-terminal-peptide-moiety-of-the-mycobacterium-tuberculosis-19-kda-lipoprotein-harbors-rp105-agonistic-properties
#3
Thomas E Schultz, Karl-Heinz Wiesmüller, Megan Lucas, Karen M Dobos, Alan G Baxter, Antje Blumenthal
Radioprotective 105 kDa (RP105, CD180) is a member of the Toll-like receptor (TLR) family that interacts with TLR2 and facilitates recognition of mature lipoproteins expressed by Mycobacterium tuberculosis and Mycobacterium bovis BCG. In this study, we used synthetic lipopeptide analogs of the M. tuberculosis 19 kDa lipoprotein to define structural characteristics that promote RP105-mediated host cell responses. A tripalmitoylated lipopeptide composed of the first 16 N-terminal amino acids of the M. tuberculosis 19 kDa lipoprotein induced RP105-dependent TNF and IL-6 production by macrophages...
January 9, 2018: Journal of Leukocyte Biology
https://www.readbyqxmd.com/read/29343690/experimental-infection-of-cattle-with-mycobacterium-tuberculosis-isolates-shows-the-attenuation-of-the-human-tubercle-bacillus-for-cattle
#4
Bernardo Villarreal-Ramos, Stefan Berg, Adam Whelan, Sebastien Holbert, Florence Carreras, Francisco J Salguero, Bhagwati L Khatri, Kerri Malone, Kevin Rue-Albrecht, Ronan Shaughnessy, Alicia Smyth, Gobena Ameni, Abraham Aseffa, Pierre Sarradin, Nathalie Winter, Martin Vordermeier, Stephen V Gordon
The Mycobacterium tuberculosis complex (MTBC) is the collective term given to the group of bacteria that cause tuberculosis (TB) in mammals. It has been reported that M. tuberculosis H37Rv, a standard reference MTBC strain, is attenuated in cattle compared to Mycobacterium bovis. However, as M. tuberculosis H37Rv was isolated in the early 1930s, and genetic variants are known to exist, we sought to revisit this question of attenuation of M. tuberculosis for cattle by performing a bovine experimental infection with a recent M...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29342164/environmental-dust-inhalation-in-the-european-badger-meles-meles-systemic-distribution-of-silica-laden-macrophages-pathological-changes-and-association-with-mycobacterium-bovis-infection-status
#5
Janne M Schoening, Leigh A L Corner, Locksley L McV Messam, Joseph P Cassidy, Alan Wolfe
Chronic inhalation of crystalline silica and silicates may lead to severe lung disease in humans, termed silicosis. The disease is an occupational health concern in miners and related professions worldwide. Silicosis is also a strong risk factor for tuberculosis in humans. Due to its subterranean lifestyle, the European badger (Meles meles) is continuously exposed to environmental dust, while this species is also susceptible to tuberculosis, caused by Mycobacterium bovis. To date, a thorough investigation of mineral dust retention and its possible implication as a risk factor for mycobacterial infection in badgers has not been performed...
2018: PloS One
https://www.readbyqxmd.com/read/29337996/occupational-exposure-to-human-mycobacterium-bovis-infection-a-systematic-review
#6
Flora Vayr, Guillaume Martin-Blondel, Frederic Savall, Jean-Marc Soulat, Gaëtan Deffontaines, Fabrice Herin
BACKGROUND: Mycobacterium bovis (M. bovis) is the main causative agent of bovine zoonotic tuberculosis. The aim of this systematic review is to highlight the occupational exposure to bovine tuberculosis due to M. bovis. METHODOLOGY/PRINCIPAL FINDINGS: A computer based literature search was carried out to identify papers published between January 2006 and March 2017. "PubMed, Cochrane Library and Science Direct" databases were searched systematically. Articles presenting the following properties were included: (i) focusing on M...
January 16, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29334428/development-of-potent-inhibitors-of-the-mycobacterium-tuberculosis-virulence-factor-zmp1-and-evaluation-of-their-effect-on-mycobacterial-survival-inside-macrophages
#7
Marco Paolino, Margherita Brindisi, Alessandra Vallone, Stefania Butini, Giusepp Campiani, Chiara Nannicini, Germano Giuliani, Maurizio Anzini, Stefania Lamponi, Gianluca Giorgi, Diego Sbardella, Davide M Ferraris, Stefano Marini, Massimo Coletta, Ivana Palucci, Mariachiara Minerva, Giovanni Delogu, Ilaria Pepponi, Delia Goletti, Andrea Cappelli, Sandra Gemma, Simone Brogi
The enzyme Zmp1 is a zinc-peptidase having a critical role in M. tuberculosis pathogenicity. Here we describe the identification of a small set of Zmp1 inhibitors based on a novel 8-hydroxyquinoline-2-hydroxamate scaffold. Among the synthesized compounds, 1c was the most potent Zmp1 inhibitor known to date, and its binding mode was analysed both through kinetic studies and molecular modelling, identifying critical interactions of 1c with the zinc-ion and residues in the active site. Effect of 1c on intracellular Mycobacterium survival was assayed in J774 murine macrophages infected with M...
January 15, 2018: ChemMedChem
https://www.readbyqxmd.com/read/29301495/cattle-infection-response-network-and-its-functional-modules
#8
Hamid Beiki, Abbas Pakdel, Ardeshir Nejati Javaremi, Ali Masoudi-Nejad, James M Reecy
BACKGROUND: Weighted Gene Co-expression Network analysis, a powerful technique used to extract co-expressed gene pattern from mRNA expression data, was constructed to infer common immune strategies used by cattle in response to five different bacterial species (Escherichia coli, Mycobacterium avium, Mycobacterium bovis, Salmonella and Staphylococcus aureus) and a protozoa (Trypanosoma Congolense) using 604 publicly available gene expression microarrays from 12 cattle infection experiments...
January 5, 2018: BMC Immunology
https://www.readbyqxmd.com/read/29290298/quantification-of-mycobacterium-bovis-transmission-in-a-badger-vaccine-field-trial
#9
I Aznar, K Frankena, S J More, J O'Keeffe, G McGrath, M C M de Jong
In the UK and Ireland, Bacille Calmette-Guérin (BCG) vaccination of badgers has been suggested as one of a number of strategies to control or even eradicate Mycobacterium bovis infection in badgers. In this manuscript, we present the results of a badger field trial conducted in Ireland and discuss how the novel trial design and analytical methods allowed the effects of vaccination on protection against infection and, more importantly, on transmission to be estimated. The trial area was divided into three zones North to South (A, B and C) where vaccination coverages of 0, 50 and 100%, respectively, were applied...
January 1, 2018: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/29284483/bovine-tuberculosis-visible-lesions-in-cattle-culled-during-herd-breakdowns-the-effects-of-individual-characteristics-trade-movement-and-co-infection
#10
Andrew W Byrne, Jordon Graham, Craig Brown, Aoibheann Donaghy, Maria Guelbenzu-Gonzalo, Jim McNair, Robin Skuce, Adrian Allen, Stanley McDowell
BACKGROUND: Bovine tuberculosis (bTB), caused by Mycobacterium bovis, remains a significant problem for livestock industries in many countries worldwide including Northern Ireland, where a test and slaughter regime has utilised the Single Intradermal Comparative Cervical Tuberculin (SICCT) test since 1959. We investigated the variation in post-mortem confirmation based on bTB visible lesion (VL) presence during herd breakdowns using two model suites. We investigated animal-level characteristics, while controlling for herd-level factors and clustering...
December 29, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29275077/human-mycobacterium-bovis-infection-in-castile-and-le%C3%A3-n-spain-2006-2015
#11
Teresa Nebreda-Mayoral, M Fé Brezmes-Valdivieso, Nieves Gutiérrez-Zufiaurre, Susana García-de Cruz, Cristina Labayru-Echeverría, Ramiro López-Medrano, Luis López-Urrutia-Lorente, Almudena Tinajas-Puertas, Octavio Rivero-Lezcano
INTRODUCTION: The annual incidence of tuberculosis (TB) from Mycobacterium bovis in humans has considerably declined in industrialised countries since the early twentieth century. The objective of this study was to determine the epidemiological, clinical and microbiological characteristics of patients with this illness in Castile and León (CyL). METHODS: Retrospective study of all M. bovis TB cases in CyL over a 10-year period, comparing the risk factors, the epidemiology and the clinical course between pulmonary (PTB) and extrapulmonary TB (EPTB)...
December 20, 2017: Enfermedades Infecciosas y Microbiología Clínica
https://www.readbyqxmd.com/read/29274054/prevalence-and-risk-factors-of-mycobacterial-infections-in-farm-and-trade-cattle-in-southwestern-nigeria
#12
Victor O Akinseye, Muideen D Adebayo, Oghenekaro O Genesis, Olubukola D Adelakun, Simeon I B Cadmus
We evaluated the prevalence of mycobacterial infections (i.e., Mycobacterium bovis and non-tuberculous mycobacteria [NTM]) and their associated risk factors among cattle herds and trade cattle in southwestern Nigeria. Through cross-sectional study design, cattle herds from three locations were screened using the single intradermal comparative cervical tuberculin test based on two diagnostic standards; more than 4 mm (˃ 4 mm) and more than 2 mm (˃ 2 mm) cut-off points. Abattoir study involved screening trade cattle for tuberculous lesions...
December 22, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29273602/monitoring-mycobacterium-bovis-in-eurasian-badgers-meles-meles-killed-by-vehicles-in-northern-ireland-between-1998-and-2011
#13
Emily A Courcier, Fraser D Menzies, Sam A J Strain, Robin A Skuce, Philip A Robinson, Ivan A P Patterson, Kathryn R McBride, Carl M McCormick, Eric Walton, Stanley W J McDowell, Darrell A Abernethy
No abstract text is available yet for this article.
December 22, 2017: Veterinary Record
https://www.readbyqxmd.com/read/29259589/complete-genome-sequencing-of-mycobacterium-bovis-sp38-and-comparative-genomics-of-mycobacterium-bovis-and-m-tuberculosis-strains
#14
Cristina Kraemer Zimpel, Paulo E Brandão, Antônio F de Souza Filho, Robson F de Souza, Cássia Y Ikuta, José Soares Ferreira Neto, Naila C Soler Camargo, Marcos Bryan Heinemann, Ana M S Guimarães
Mycobacterium bovis causes bovine tuberculosis and is the main organism responsible for zoonotic tuberculosis in humans. We performed the sequencing, assembly and annotation of a Brazilian strain of M. bovis named SP38, and performed comparative genomics of M. bovis genomes deposited in GenBank. M. bovis SP38 has a traditional tuberculous mycobacterium genome of 4,347,648 bp, with 65.5% GC, and 4,216 genes. The majority of CDSs (2,805, 69.3%) have predictive function, while 1,206 (30.07%) are hypothetical. For comparative analysis, 31 M...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29251248/the-e3-ubiquitin-ligase-nedd4-enhances-killing-of-membrane-perturbing-intracellular-bacteria-by-promoting-autophagy
#15
Gang Pei, Hellen Buijze, Haipeng Liu, Pedro Moura-Alves, Christian Goosmann, Volker Brinkmann, Hiroshi Kawabe, Anca Dorhoi, Stefan H E Kaufmann
The E3 ubiquitin ligase NEDD4 has been intensively studied in processes involved in viral infections, such as virus budding. However, little is known about its functions in bacterial infections. Our investigations into the role of NEDD4 in intracellular bacterial infections demonstrate that Mycobacterium tuberculosis and Listeria monocytogenes, but not Mycobacterium bovis BCG, replicate more efficiently in NEDD4 knockdown macrophages. In parallel, NEDD4 knockdown or knockout impaired basal macroautophagy/autophagy, as well as infection-induced autophagy...
December 17, 2017: Autophagy
https://www.readbyqxmd.com/read/29246228/genetic-diversity-assessment-of-tunisian-mycobacterium-bovis-population-isolated-from-cattle
#16
Saif Eddine Djemal, Mariam Siala, Salma Smaoui, Sana Kammoun, Chema Marouane, Javier Bezos, Feriele Messadi-Akrout, Beatriz Romero, Radhouane Gdoura
BACKGROUND: The genetic diversity of M. bovis in Tunisia is still underestimated despite the implementation of an eradication program. The lack of data about spatial distribution of the M. bovis population hinders the control of bovine tuberculosis (bTB) progress. This study represents the largest molecular analysis of M. bovis isolates in Tunisia. It is aimed to upgrade the understanding of bTB epidemiology and the geographical distribution of the infection. Tuberculosis research was performed in cattle (n = 149) with TB-compatible lesions collected over 5 months from a slaughterhouse located in Sfax, Tunisia...
December 16, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/29241819/cyclophostin-and-cyclipostins-analogs-new-promising-molecules-to-treat-mycobacterial-related-diseases
#17
Phuong Chi Nguyen, Abdeldjalil Madani, Pierre Santucci, Benjamin P Martin, Rishi R Paudel, Sandrine Delattre, Jean-Louis Herrmann, Christopher D Spilling, Laurent Kremer, Stéphane Canaan, Jean-François Cavalier
The progression of mycobacterial diseases requires the development of new therapeutics. Here, we evaluated the efficacy and selectivity of a panel of Cyclophostin and Cyclipostins analogs (CyCs) against various bacteria and mycobacteria. The activity of these 26 CyCs was first assayed using the agar plate method. Compounds exhibiting a 50-100% growth inhibition rate were then selected to determine their MIC using the REMA assay. The best drug candidate was further tested against mycobacterial clinical isolates and bacteria responsible for nosocomial infections...
December 11, 2017: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29233822/hematopoietic-stem-cell-gene-therapy-for-ifn%C3%AE-r1-deficiency-protects-mice-from-mycobacterial-infections
#18
Miriam Hetzel, Adele Mucci, Patrick Blank, Ariane Hai Ha Nguyen, Jan Schiller, Olga Halle, Mark-Philipp Kühnel, Sandra Billig, Robert Meineke, Daniel Brand, Vanessa Herder, Wolfgang Baumgärtner, Franz-Christoph Bange, Ralph Goethe, Danny Jonigk, Reinhold Förster, Bernhard Gentner, Jean-Laurent Casanova, Jacinta Bustamante, Axel Schambach, Ulrich Kalinke, Nico Lachmann
Mendelian Susceptibility to Mycobacterial Disease (MSMD) is a rare primary immunodeficiency, characterized by severe infections caused by weakly virulent mycobacteria. Bi-allelic null mutations in genes encoding interferon gamma (IFNγ) receptor 1 or -2 (IFNGR1, IFNGR2) result in a life-threatening disease phenotype in early childhood. Recombinant IFNγ therapy is inefficient and hematopoietic stem cell transplantation (HSCT) has a poor prognosis. Thus, we developed a HSC gene therapy approach using lentiviral vectors expressing Ifnγr1 either constitutively or myeloid-specifically...
December 12, 2017: Blood
https://www.readbyqxmd.com/read/29219122/towards-the-use-of-breath-for-detecting-mycobacterial-infection-a-case-study-in-a-murine-model
#19
Flavio Antonio Franchina, Theodore Robert Mellors, Minara Aliyeva, Jeffrey Wagner, Nirav Daphtary, Lennart Lundblad, Sarah M Fortune, Eric J Rubin, Jane E Hill
In the present research, the potential of breath analysis by comprehensive two-dimensional gas chromatography coupled to mass spectrometry (GC×GC-MS) was investigated for the discrimination between healthy and infected mice. A pilot study employing a total of 16 animals was used to develop a method for breath analysis in a murine model for studying MTBC (Mycobacterium tuberculosis complex) using the M. bovis BCG (Bacillus Calmette-Guérin). Breath was collected in Tedlar bags and concentrated onto thermal desorption tubes for the subsequent analysis by GC×GC-MS...
December 8, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/29215013/allosteric-pyruvate-kinase-based-logic-gate-synergistically-senses-energy-and-sugar-levels-in-mycobacterium-tuberculosis
#20
Wenhe Zhong, Liang Cui, Boon Chong Goh, Qixu Cai, Peiying Ho, Yok Hian Chionh, Meng Yuan, Abbas El Sahili, Linda A Fothergill-Gilmore, Malcolm D Walkinshaw, Julien Lescar, Peter C Dedon
Pyruvate kinase (PYK) is an essential glycolytic enzyme that controls glycolytic flux and is critical for ATP production in all organisms, with tight regulation by multiple metabolites. Yet the allosteric mechanisms governing PYK activity in bacterial pathogens are poorly understood. Here we report biochemical, structural and metabolomic evidence that Mycobacterium tuberculosis (Mtb) PYK uses AMP and glucose-6-phosphate (G6P) as synergistic allosteric activators that function as a molecular "OR logic gate" to tightly regulate energy and glucose metabolism...
December 7, 2017: Nature Communications
keyword
keyword
16633
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"