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Mycobacterium bovis

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https://www.readbyqxmd.com/read/28101015/m2-polarized-macrophages-compose-lupus-vulgaris-arising-from-a-bacillus-calmette-gu%C3%A3-rin-vaccination-site
#1
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/28100768/control-of-bovine-tuberculosis-in-a-farmed-red-deer-herd-in-england
#2
F Busch, F Bannerman, S Liggett, F Griffin, J Clarke, K P Lyashchenko, S Rhodes
This report describes how Mycobacterium bovis infection was controlled and eventually eradicated in a farmed red deer herd in the north of England, following sustained tuberculin skin testing supplemented with serological (antibody) tests over a period of approximately two years. By taking advantage of the anamnestic antibody response produced by the skin test to detect skin test-negative, antibody-positive infected individuals, a total of 35 additional animals were identified, including 2 with gross visible lesions typical of bovine tuberculosis (BTB)...
January 18, 2017: Veterinary Record
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/28091937/ocular-mycobacteriosis-dual-infection-of-m-tuberculosis-complex-with-m-fortuitum-and-m-bovis
#4
Kusum Sharma, Natasha Gautam, Megha Sharma, Mohit Dogra, Priya Bajgai, Basavaraj Tigari, Aman Sharma, Vishali Gupta, Surya Prakash Sharma, Ramandeep Singh
BACKGROUND: We report unfavorable outcome in a patient with subretinal granuloma caused by dual infection of Mycobacterium tuberculosis complex with Mycobacterium fortuitum and Mycobacterium bovis in an immunosuppressed, non-HIV patient. We did a systematic review of literature on dual infection due to M. tuberculosis and M. fortuitum via MEDLINE and PUBMED and could not find any case reported of causing this kind of dual infection in the eye. RESULTS: A 38-year-old Indian male patient presented with decreased vision in the left eye for 3 months, diagnosed as tubercular choroidal granuloma with associated retinal angiomatosis proliferans (RAP) lesion...
December 2017: Journal of Ophthalmic Inflammation and Infection
https://www.readbyqxmd.com/read/28089289/evaluation-of-five-serologic-assays-for-bovine-tuberculosis-surveillance-in-domestic-free-range-pigs-from-southern-spain
#5
Fernando Cardoso-Toset, Inmaculada Luque, Librado Carrasco, Francisco Jurado-Martos, María Ángeles Risalde, Ángel Venteo, José A Infantes-Lorenzo, Javier Bezos, Paloma Rueda, Istar Tapia, Christian Gortázar, Lucas Domínguez, Mercedes Domínguez, Jaime Gomez-Laguna
In countries where bovine tuberculosis (bTB) is still prevalent the contact among different animal species in extensive systems contributes to the circulation of Mycobacterium bovis (M. bovis) and other members of the Mycobacterium tuberculosis complex (MTC). Thus, free-range pigs can develop subclinical infections and may contribute to disease spread to bovine and wildlife. Serodiagnosis has been proposed as a screening tool for detecting infected pig herds; however, the value of this method to obtain an accurate diagnosis in this species is still not clear...
December 29, 2016: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28087528/engineering-mycobacteria-for-the-production-of-self-assembling-biopolyesters-displaying-mycobacterial-antigens-for-use-as-tuberculosis-vaccine
#6
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/28077246/testing-of-a-palatable-bait-and-compatible-vaccine-carrier-for-the-oral-vaccination-of-european-badgers-meles-meles-against-tuberculosis
#7
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/28072845/tuberculosis-detection-in-paratuberculosis-vaccinated-calves-new-alternatives-against-interference
#8
Miriam Serrano, Natalia Elguezabal, Iker A Sevilla, María V Geijo, Elena Molina, Rakel Arrazuria, Alfonso Urkitza, Gareth J Jones, Martin Vordermeier, Joseba M Garrido, Ramón A Juste
Paratuberculosis vaccination in cattle has been restricted due to its possible interference with the official diagnostic methods used in tuberculosis eradication programs. To overcome this drawback, new possibilities to detect Mycobacterium bovis infected cattle in paratuberculosis vaccinated animals were studied under experimental conditions. Three groups of 5 calves each were included in the experiment: one paratuberculosis vaccinated group, one paratuberculosis vaccinated and M. bovis infected group and one M...
2017: PloS One
https://www.readbyqxmd.com/read/28062754/mycobacterium-tuberculosis-complex-exhibits-lineage-specific-variations-affecting-protein-ductility-and-epitope-recognition
#9
Inmaculada Yruela, Bruno Contreras-Moreira, Carlos Magalhães, Nuno S Osório, Jesús Gonzalo-Asensio
The advent of whole-genome sequencing has provided an unprecedented detail about the evolution and genetic significance of species-specific variations across the whole Mycobacterium tuberculosis Complex. However, little attention has been focused on understanding the functional roles of these variations in the protein coding sequences. In this work, we compare the coding sequences from 74 sequenced mycobacterial species including M. africanum, M. bovis, M. canettii, M. caprae, M. orygis, and M. tuberculosis Results show that albeit protein variations affect all functional classes, those proteins involved in lipid and intermediary metabolism and respiration have accumulated mutations during evolution...
January 6, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28062011/molecular-identification-of-mycobacterium-tuberculosis-in-cattle
#10
N Sweetline Anne, B S M Ronald, T M A Senthil Kumar, P Kannan, A Thangavelu
Bovine tuberculosis continued to be a re-emerging problem in some countries especially in endemic areas due to the fact that human and animal health surveillance system is not adopted to diagnose the infection. This crisis can be attributed due to sharing of the same habitat especially in rural areas. In the present study, a total of 148 samples were collected from cattle for isolation over a period of 3 years from cattle with and without lesions, of which 67 isolates were obtained by culture. Fifty one isolates were identified as Mycobacterium tuberculosis complex (MTBC) by IS6110 PCR of which 43 (84...
January 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28061860/preliminary-investigation-of-the-transmission-of-tuberculosis-between-farmers-and-their-cattle-in-smallholder-farms-in-northwestern-ethiopia-a-cross-sectional-study
#11
Anwar Nuru, Gezahegne Mamo, Aboma Zewude, Yitayal Mulat, Gashaw Yitayew, Aschalew Admasu, Girmay Medhin, Rembert Pieper, Gobena Ameni
BACKGROUND: The feeding habits and close physical contact between Ethiopian farmers and their cattle promote the transmission of tuberculosis (TB) between the farmers and their cattle. This study aimed to investigate the transmission of TB between farmers and their cattle in smallholder farms in northwestern Ethiopia. RESULTS: A total of 70 human TB lymphadenitis (TBLN) cases visiting the Felegehiwot Comprehensive Specialized Hospital in Bahir Dar City and 660 cattle were investigated...
January 7, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28052763/development-and-evaluation-of-a-diagnostic-cytokine-release-assay-for-mycobacterium-suricattae-infection-in-meerkats-suricata-suricatta
#12
Charlene Clarke, Stuart James Patterson, Julian Ashley Drewe, Paul David van Helden, Michele Ann Miller, Sven David Charles Parsons
BACKGROUND: Sensitive diagnostic tools are necessary for the detection of Mycobacterium suricattae infection in meerkats (Suricata suricatta) in order to more clearly understand the epidemiology of tuberculosis and the ecological consequences of the disease in this species. We therefore aimed to develop a cytokine release assay to measure antigen-specific cell-mediated immune responses of meerkats. RESULTS: Enzyme-linked immunosorbent assays (ELISAs) were evaluated for the detection of interferon-gamma (IFN-γ) and IFN-γ inducible protein 10 (IP-10) in meerkat plasma...
January 4, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28043636/evaluation-the-virulence-of-mycobacterium-bovis-isolated-from-milk-samples-through-histopathological-study-in-laboratory-animals
#13
I M Al-Saqur, A N Al-Thwani, I M Al-Attar, M S Al-Mashhadani
INTRODUCTION: Mycobacterium bovis has a broad host range, and it is the principal agent responsible for tuberculosis (TB) in bovine, domestic and wild mammals. M. bovis also infects human, causing zoonotic TB through ingestion, inhalation and, less frequently by contact with mucous membranes and broken skin. Zoonotic TB was formerly an endemic disease, usually transmitted to man by consumption of raw cow's milk. It is indistinguishable clinically or pathologically from TB caused by M...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043632/mycobacterial-coinfection-and-persisting-bovine-tuberculosis-has-the-time-arrived-for-a-policy-review
#14
Nader Mosavari, Morad Moradi Geravand, Keyvan Tadayon, Rohollah Keshavarz
OBJECTIVE/BACKGROUND: Bovine tuberculosis (BTb) is mainly a disease of cattle, although it continues to infect human populations across the world. Operation of a test and slaughter plan in Iran since 1981 has lowered the frequency of BTb from >5% to <0.14% at the national scale. In 2015, unusual uncontrollable epidemics of BTb were detected in two cattle farms in municipal suburbs of Qazvin and Isfahan. These farms had a tuberculin-test-certified record of BTb-free status for the past 5 consecutive years, with no new cattle registered with either of the two herds during this time period...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043589/tuberculosis-in-slaughtered-cattle-and-workers-in-some-abattoirs-of-baghdad-governorate
#15
A N Al-Thwani, M S Al-Mashhadani
OBJECTIVE/BACKGROUND: Tuberculosis (the white plague) is regarded as one of the most widespread infectious diseases and continues to be a leading cause of death and the most prominent public health problem worldwide. It is caused by Mycobacterium tuberculosis complex, which refers to a group of seven species; one of them known as Mycobacterium bovis-the cause of bovine-type tuberculosis-has an exceptionally wide host range. It infects cattle, humans, goats, cats, dogs, buffalo, and deer...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043587/cloning-expression-and-purification-of-recombinant-protein-mpt-64-from-a-virulent-strain-of-mycobacterium-bovis-in-a-prokaryotic-system
#16
Maryam Mohammadi Tashakkori, Majid Tebianian, Mohammad Tabatabaei, Nader Mosavari
OBJECTIVE: Tuberculosis (TB) is a zoonotic infectious disease common to humans and animals that is caused by the rod-shaped acid-fast bacterium Mycobacterium bovis. Rapid and sensitive detection of TB is promoted by specific antigens. Virulent strains of the TB complex from M. bovis contain 16 regions of difference (RD) in their genome that encode important proteins, including major protein of Mycobacterium Tuberculosis 64 (MBT-64, which is a primary immune-stimulating antigen encoded by RD-2...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043585/occurrence-of-zoonotic-tuberculosis-in-occupationally-exposed-high-risk-groups-in-peshawar-pakistan
#17
Irfan Khattak, Muhammad H Mushtaq, Sultan Ayaz, Mansur U D Ahmad, Sadeeq U Rahman
OBJECTIVE/BACKGROUND: To determine the occurrence of active pulmonary tuberculosis (TB) due to Mycobacterium bovis in abattoir workers, butchers, livestock farmers, and veterinarians and to document their knowledge and practices regarding bovine TB (bTB). METHODS: A cross-sectional study was conducted among abattoir workers, butchers, livestock farmers, veterinary doctors, and veterinary assistants. Sputum samples were collected from the respondents with a chronic cough and data on sociodemographic conditions, knowledge, and practices regarding TB were obtained...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043575/rapid-identification-of-mycobacterium-avium-ssp-paratuberculosis-laboratory-strains-by-is900-nested-polymerase-chain-reaction
#18
Mohammad Mohammad Taheri, Nader Mosavari, Mohammad Mehdi Feizabadi, Keyvan Tadayon, Rouholah Keshavarz, Reza Aref Pajoohi, Kioomars Soleimani, Shojaat Dashti Pour
INTRODUTION: Mycobacterium avium ssp paratuberculosis (MAP) causes paratuberculosis (Johne's disease) in ruminants. As a species, M. avium comprises M. avium subsp. hominissuis and a number of clones that are known to have evolved from this subspecies, namely M. avium subsp. avium (MAA), M. avium subsp. silvaticum, and MAP. Despite the very high genomic similarity of MAP and MAA, the insertion sequence IS900, which is 1,451-bp long, is now understood to be exclusively present in 10-20 copies in the genome of MAP...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043572/identification-and-comparison-of-genetic-pattern-of-human-and-cattle-m-bovis-isolates-from-zanjan-province-by-restriction-fragment-length-polymorphism-and-dna-hybridization
#19
Mahdi Dehghanpour, Nader Mosavari, Hamid Baghchesaraei, Mohammad Mohammad Taheri, Mahdi Babaie
BACKGROUND/OBJECTIVE: Mycobacterium bovis, responsible for bovine tuberculosis is a member of Mycobacterium tuberculosis complex. This bacterium is responsible for infection in wide range of hosts. Bovine tuberculosis is well known as Zoonotic tuberculosis in human and is transmitted via consumption of unpasteurized milk, contaminated meat products and also by ingestion of Mycobacteria from the environment. The objectives of the present study was to compare the genomic pattern of M. bovis obtained from human subjects in Zanjan province, with those of atypic cattle in Iran by Restriction fragment length polymerization and DNA hybridization methods...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043570/evaluate-the-efficiency-of-antigen-60-a60-protein-from-bcg-strain-of-mycobacterium-bovis-as-a-diagnostic-antigen
#20
Nafiseh Shakibamehr, Nader Mosavari, Mahdi Babaie, Samerand Reshady
OBJECTIVE/BACKGROUND: Tuberculosis (TB) is one of the most common infectious diseases in Iran and around the world. Diagnosis of this disease in many cases is difficult and often requires the use of paraclinical methods. Current diagnostic methods are either too slow or lack enough sensitivity or specificity. Several mycobacterial antigens are involved in the complex interaction with the immune system of the host. They can be helpful for mycobacteria diagnosis. Antigen 60 (A60) is a thermostable antigen found in the cytosol of Mycobacterium bovis and Mycobacterium tuberculosis...
December 2016: International Journal of Mycobacteriology
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