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Bovine Tuberculosis

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https://www.readbyqxmd.com/read/29777389/iron-based-metal-organic-frameworks-as-a-theranostic-carrier-for-local-tuberculosis-therapy
#1
Gabriela Wyszogrodzka, Przemysław Dorożyński, Barbara Gil, Wieslaw J Roth, Maciej Strzempek, Bartosz Marszałek, Władysław P Węglarz, Elżbieta Menaszek, Weronika Strzempek, Piotr Kulinowski
PURPOSE: The purpose of the study was initial evaluation of applicability of metal organic framework (MOF) Fe-MIL-101-NH2 as a theranostic carrier of antituberculous drug in terms of its functionality, i.e. drug loading, drug dissolution, magnetic resonance imaging (MRI) contrast and cytotoxic safety. METHODS: Fe-MIL-101-NH2 was characterized using X-ray powder diffraction, FTIR spectrometry and scanning electron microscopy. The particle size analysis was determined using laser diffraction...
May 18, 2018: Pharmaceutical Research
https://www.readbyqxmd.com/read/29774850/mycobacterium-bovis-infection-of-red-fox-france
#2
Lorraine Michelet, Krystel De Cruz, Sylvie Hénault, Jennifer Tambosco, Céline Richomme, Édouard Réveillaud, Hélène Gares, Jean-Louis Moyen, María Laura Boschiroli
Mycobacterium bovis infection in wild red foxes was found in southern France, where livestock and other wildlife species are infected. Foxes frequently interact with cattle but have been underestimated as a reservoir of M. bovis. Our results suggest a possible role of the red fox in the epidemiology of bovine tuberculosis.
June 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29701069/immunohistochemical-examination-of-osteopontin-and-sirtuin-1-expression-in-cattle-tuberculosis
#3
M Sevtekin, O Ozmen
We evaluated osteopontin (OPN) and sirtuin-1 (SIRT-1) expression in bovine tuberculosis lesions. The organs of cattle with tuberculosis (TB) were examined for morphology, histopathology and immunohistochemistry of OPN and SIRT-1 expression. Macroscopic lesions commonly were localized in the lungs and mediastinal lymph nodes as well as in livers and hearts. Mycobacterial agents were detected in lesions using the Ziehl-Neelsen method. No OPN or SIRT-1 expression was detected by immunohistochemistry in normal tissues, whereas a marked increase in their expressions was observed in tuberculous lesions...
April 27, 2018: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/29695324/detection-of-mycobacterium-bovis-infection-in-african-buffaloes-syncerus-caffer-using-quantiferon-%C3%A2-tb-gold-qft-tubes-and-the-qiagen-cattletype-%C3%A2-ifn-gamma-elisa
#4
Netanya Bernitz, Charlene Clarke, Eduard O Roos, Wynand J Goosen, David Cooper, Paul D van Helden, Sven D C Parsons, Michele A Miller
African buffaloes (Syncerus caffer) are wildlife maintenance hosts of Mycobacterium bovis, the cause of bovine tuberculosis. Consequently, M. bovis infected buffaloes pose a transmission risk for cattle and other wildlife species. Previously, a modification to the Qiagen QuantiFERON® -TB Gold (QFT) system, using QFT tubes and an in-house bovine interferon-gamma (IFN-γ) ELISA, was evaluated for the detection of M. bovis infection in buffaloes. Subsequently, Qiagen has developed a commercially available cattletype® IFN-gamma ELISA for the detection of antigen-specific IFN-γ release in ruminants...
February 2018: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/29686992/the-history-of-in-vivo-tuberculin-testing-in-bovines-tuberculosis-a-one-health-issue
#5
REVIEW
Margaret Good, Douwe Bakker, Anthony Duignan, Daniel M Collins
Tuberculosis (TB) is more than 3 million years old thriving in multiple species. Ancestral Mycobacterium tuberculosis gave rise to multiple strains including Mycobacterium bovis now distributed worldwide with zoonotic transmission happening in both directions between animals and humans. M. bovis in milk caused problems with a significant number of deaths in children under 5 years of age due largely to extrapulmonary TB. This risk was effectively mitigated with widespread milk pasteurization during the twentieth century, and fewer young children were lost to TB...
2018: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29685279/silage-review-animal-and-human-health-risks-from-silage
#6
REVIEW
F Driehuis, J M Wilkinson, Y Jiang, I Ogunade, A T Adesogan
Silage may contain several agents that are potentially hazardous to animal health, the safety of milk or other animal food products, or both. This paper reviews published literature about microbial hazards, plant toxins, and chemical hazards. Microbial hazards include Clostridium botulinum, Bacillus cereus, Listeria monocytogenes, Shiga toxin-producing Escherichia coli, Mycobacterium bovis, and various mold species. High concentrations of C. botulinum in silage have been associated with cattle botulism. A high initial concentration of C...
May 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29664901/genetic-profiling-of-mycobacterium-bovis-strains-from-slaughtered-cattle-in-eritrea
#7
Michael Kahsay Ghebremariam, Tiny Hlokwe, Victor P M G Rutten, Alberto Allepuz, Simeon Cadmus, Adrian Muwonge, Suelee Robbe-Austerman, Anita L Michel
Mycobacterium bovis (M.bovis) is the main causative agent for bovine tuberculosis (BTB) and can also be the cause of zoonotic tuberculosis in humans. In view of its zoonotic nature, slaughterhouse surveillance, potentially resulting in total or partial condemnation of the carcasses and organs, is conducted routinely.Spoligotyping, VNTR profiling, and whole genome sequencing (WGS)ofM. bovis isolated from tissues with tuberculosis-like lesions collected from 14 cattle at Eritrea's largest slaughterhouse in the capital Asmara, were conducted...
April 17, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29655632/ag85a-specific-cd4-t-cell-lines-derived-after-boosting-bcg-vaccinated-cattle-with-ad5-85a-possess-both-mycobacterial-growth-inhibition-and-anti-inflammatory-properties
#8
Hannah J Metcalfe, Lucia Biffar, Sabine Steinbach, Efrain Guzman, Tim Connelley, Ivan Morrison, H Martin Vordermeier, Bernardo Villarreal-Ramos
There is a need to improve the efficacy of the BCG vaccine against human and bovine tuberculosis. Previous data showed that boosting bacilli Calmette-Guerin (BCG)-vaccinated cattle with a recombinant attenuated human type 5 adenovirally vectored subunit vaccine (Ad5-85A) increased BCG protection and was associated with increased frequency of Ag85A-specific CD4+ T cells post-boosting. Here, the capacity of Ag85A-specific CD4+ T cell lines - derived before and after viral boosting - to interact with BCG-infected macrophages was evaluated...
April 11, 2018: Vaccine
https://www.readbyqxmd.com/read/29650575/genome-sequences-of-five-mycobacterium-bovis-strains-isolated-from-farmed-animals-and-wildlife-in-canada
#9
Olga Andrievskaia, Marc-Olivier Duceppe, Dara Lloyd
Mycobacterium bovis is the causative agent of bovine tuberculosis, an infectious disease that affects both animals and humans and thus presents a risk to public health and the livestock industry. Here, we report the genome sequences of five Mycobacterium bovis strains that represent major genotype clusters observed in farmed animals and wildlife in Canada.
April 12, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29614950/genetic-insights-into-dispersal-distance-and-disperser-fitness-of-african-lions-panthera-leo-from-the-latitudinal-extremes-of-the-kruger-national-park-south-africa
#10
Pim van Hooft, Dewald F Keet, Diana K Brebner, Armanda D S Bastos
BACKGROUND: Female lions generally do not disperse far beyond their natal range, while males can disperse distances of over 200 km. However, in bush-like ecosystems dispersal distances less than 25 km are reported. Here, we investigate dispersal in lions sampled from the northern and southern extremes of Kruger National Park, a bush-like ecosystem in South Africa where bovine tuberculosis prevalence ranges from low to high across a north-south gradient. RESULTS: A total of 109 individuals sampled from 1998 to 2004 were typed using 11 microsatellite markers, and mitochondrial RS-3 gene sequences were generated for 28 of these individuals...
April 3, 2018: BMC Genetics
https://www.readbyqxmd.com/read/29611649/bovine-tuberculosis-outbreak-in-farmed-american-bison-bison-bison-in-poland
#11
M Krajewska-Wędzina, W Olech, M Kozińska, E Augustynowicz-Kopeć, M Weiner, K Szulowski
Poland has been an officially bovine tuberculosis (bTB) free country for the last seven years. The problem currently observed is the increasing number of new cases of bTB in wild species, kept in a farmed herd and free-living herd: European bison (Bison bonasus), wild boar (Sus scrofa), wolves (Canis lupus) and red deer (Cervus elaphus). This article presents the case of Mycobacterium caprae transmission to an American bison (Bison bison) herd kept on a private farm in Eastern Poland.
December 2017: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/29597169/synthesis-and-evaluation-of-novel-coumarin-oxime-ethers-as-potential-anti-tubercular-agents-their-dna-cleavage-ability-and-bsa-interaction-study
#12
Dinesh S Reddy, Manasa Kongot, Sandeep P Netalkar, Mahantesh M Kurjogi, Rakesh Kumar, Fernando Avecilla, Amit Kumar
As a contribution to the development of novel coumarin-oxime ether conjugates with therapeutically interesting properties, a series of coumarin-oxime ether (1a-1j) was synthesised using SN 2 reaction of bromomethyl coumarins with butane-2,3-dione monoxime. Invitro anti-tuberculosis activityagainstMTBH37 Rv strain was established for the coumarin-oxime ether (1a-1j). Most of the compounds exhibited significant activity with minimum inhibitory concentration (MIC)in the range of 0.04-3.12 μg mL-1 . Compound (1h) was identified as a hit candidate exhibiting MIC of 0...
March 20, 2018: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29582340/prevalence-of-bovine-and-avian-tuberculosis-in-camel-herds-and-associated-public-health-risk-factors-in-isiolo-county-kenya
#13
Peter O Lamuka, Francis M Njeruh, George C Gitao, Joseph Matofari, Richard Bowen, Khalif A Abey
A cross-sectional study was conducted among 308 lactating camels selected from 15 herds from three different camel milk clusters in Isiolo County, Kenya, to determine prevalence of bovine and avian tuberculosis using Single Comparative Intradermal Tuberculin Skin test. Seventy-five (75) questionnaires were administered to pastoralists/herders, and focus group discussions were conducted among 3-5 pastoralists/herders selected from each camel herd to collect information on camel husbandry and health management practices and knowledge on tuberculosis in livestock and wildlife...
March 26, 2018: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/29572952/a-genealogy-of-animal-diseases-and-social-anthropology-1870-2000
#14
Frédéric Keck
Culling, vaccinating, and monitoring animals are the three main techniques used in contemporary veterinary public health to manage animal diseases that can be transmitted to humans. Each technique is underpinned by different ontological understandings of how microbes figure in relations between humans and animals. Therefore, animal diseases are not only a question for an applied anthropology but also involve the theoretical core of the discipline i.e., understanding how social causality emerges out of physical causality...
March 23, 2018: Medical Anthropology Quarterly
https://www.readbyqxmd.com/read/29560355/limitations-of-using-il-17a-and-ifn-%C3%AE-induced-protein-10-to-detect-bovine-tuberculosis
#15
Ting Xin, Xintao Gao, Hongjun Yang, Pingjun Li, Qianqian Liang, Shaohua Hou, Xiukun Sui, Xiaoyu Guo, Weifeng Yuan, Hongfei Zhu, Jiabo Ding, Hong Jia
Bovine tuberculosis (bTB) is primarily caused by infection with Mycobacterium bovis , which belongs to the Mycobacterium tuberculosis complex. The airborne route is considered the most common for transmission of M. bovis , and more than 15% of cattle with bTB shed the Mycobacterium , which can be detect by nested PCR to amplify mycobacterial mpb 70 from a nasal swab from a cow. To screen for cytokines fostering early and accurate detection of bTB, peripheral blood mononuclear cells were isolated from naturally M...
2018: Frontiers in Veterinary Science
https://www.readbyqxmd.com/read/29557774/comparative-omics-analyses-differentiate-mycobacterium-tuberculosis-and-mycobacterium-bovis-and-reveal-distinct-macrophage-responses-to-infection-with-the-human-and-bovine-tubercle-bacilli
#16
Kerri M Malone, Kévin Rue-Albrecht, David A Magee, Kevin Conlon, Olga T Schubert, Nicolas C Nalpas, John A Browne, Alicia Smyth, Eamonn Gormley, Ruedi Aebersold, David E MacHugh, Stephen V Gordon
Members of the Mycobacterium tuberculosis complex (MTBC) are the causative agents of tuberculosis in a range of mammals, including humans. A key feature of MTBC pathogens is their high degree of genetic identity yet distinct host tropism. Notably, while Mycobacterium bovis is highly virulent and pathogenic for cattle, the human pathogen M. tuberculosis is attenuated in cattle. Previous research also suggests that host preference amongst MTBC members has a basis in host innate immune responses. To explore MTBC host tropism, we present in-depth profiling of the MTBC reference strains M...
March 20, 2018: Microbial Genomics
https://www.readbyqxmd.com/read/29556853/expression-of-recombinant-hbd3-protein-that-reduces-mycobacterial-infection-capacity
#17
Feng Su, Xin Chen, Xin Liu, Guanghui Liu, Yong Zhang
Bovine tuberculosis is a disease caused by Mycobacterium bovis (M. bovis) that leads to great economic losses in cattle production. The discovery of a reasonable bioagent to reduce M. bovis infection risk and environment contamination becomes significant and urgent. Previous study reported that human β-defensin-3 (HBD3) participated in Mycobacterial immunity and was recognized as a suitable candidate reagent. However, its minimal inhibitory concentration to M. bovis is not yet reported. In this study, we first purified HBD3 protein by recombinant-DNA technology and prokaryotic expression system...
March 20, 2018: AMB Express
https://www.readbyqxmd.com/read/29548927/identifying-genotype-specific-elevated-risk-areas-and-associated-herd-risk-factors-for-bovine-tuberculosis-spread-in-british-cattle
#18
R J Orton, M Deason, P R Bessell, D M Green, R R Kao, L C M Salvador
Bovine tuberculosis (bTB) is a chronic zoonosis with major health and economic impact on the cattle industry. Despite extensive control measures in cattle and culling trials in wildlife, the reasons behind the expansion of areas with high incidence of bTB breakdowns in Great Britain remain unexplained. By balancing the importance of cattle movements and local transmission on the observed pattern of cattle outbreaks, we identify areas at elevated risk of infection from specific Mycobacterium bovis genotypes...
March 1, 2018: Epidemics
https://www.readbyqxmd.com/read/29543911/perceptions-and-acceptability-of-some-stakeholders-about-the-bovine-tuberculosis-surveillance-system-for-wildlife-sylvatub-in-france
#19
Julie Rivière, Yann Le Strat, Pascal Hendrikx, Barbara Dufour
Bovine tuberculosis (bTB) is a common disease of cattle and wildlife, with economic repercussions and implications for animal and human health. The surveillance of bTB in wildlife is particularly important, to shed light on the epidemiological role of wild species and for the adaptation of control measures. In France, a bTB surveillance system for free-ranging wildlife, the Sylvatub system, was launched in 2011 on wild boars, red deer, roe deer and badgers. It relies on active and passive surveillance activities, constrained by practical difficulties, such as the accessibility of wild animals, and regulatory rules for the trapping of badgers, for example...
2018: PloS One
https://www.readbyqxmd.com/read/29543151/mycobacterium-komaniense-sp-nov-a-rapidly-growing-non-tuberculous-mycobacterium-species-detected-in-south-africa
#20
Nomakorinte Gcebe, Victor P M G Rutten, Nicolaas Gey van Pittius, Brendon Naicker, Anita L Michel
Some species of non-tuberculous mycobacteria (NTM) have been reported to be opportunistic pathogens of animals and humans. Recently there has been an upsurge in the number of cases of NTM infections, such that some NTM species are now recognized as pathogens of humans and animals. From a veterinary point of view, the major significance of NTM is the cross-reactive immune response they elicit against Mycobacterium bovis antigens, leading to misdiagnosis of bovine tuberculosis. Four NTM isolates were detected from a bovine nasal swab, soil and water, during an NTM survey in South Africa...
March 15, 2018: International Journal of Systematic and Evolutionary Microbiology
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