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https://www.readbyqxmd.com/read/28344769/application-of-antibodies-to-recombinant-heat-shock-protein-70-in-immunohistochemical-diagnosis-of-mycobacterium-avium-subspecies-paratuberculosis-in-tissues-of-naturally-infected-cattle
#1
Julius Boniface Okuni, David Patrick Kateete, Moses Okee, Anna Nanteza, Moses Joloba, Lonzy Ojok
BACKGROUND: Detection of Mycobacterium avium subspecies paratuberculosis (MAP) infection is key to the control of Johne's disease. Immunohistochemistry is one of the methods of detection of MAP infection in tissues. However, unavailability of commercial antibodies that can detect the organism is a limiting factor for the use of immunohistochemistry. This study was aimed at developing an immunohistochemistry method to diagnose MAP in infected tissues using antibodies against MAP recombinant heat shock protein 70kd...
2017: Irish Veterinary Journal
https://www.readbyqxmd.com/read/28337084/therapeutic-drug-monitoring-of-continuous-infusion-doripenem-in-a-pediatric-patient-on-continuous-renal-replacement-therapy
#2
Jeffrey J Cies, Wayne S Moore, Susan B Conley, Paul Shea, Adela Enache, Arun Chopra
An 11-year-old African American male with severe combined immunodeficiency variant, non-cystic fibrosis bronchiectasis, pancreatic insufficiency, chronic mycobacterium avium-intracellulare infection, chronic sinusitis, and malnutrition presented with a 1-week history of fevers. He subsequently developed respiratory decompensation and cefepime was discontinued and doripenem was initiated. Doripenem was the carbapenem used due to a national shortage of meropenem. By day 7 the patient (24.7 kg) had a positive fluid balance of 6925 mL (28% FO), and on days 7 into 8 developed acute kidney injury evidenced by an elevated serum creatinine of 0...
January 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28333340/evaluation-of-the-new-genotype-ntm-dr-kit-for-the-molecular-detection-of-antimicrobial-resistance-in-non-tuberculous-mycobacteria
#3
Faiza Mougari, Jade Loiseau, Nicolas Veziris, Christine Bernard, Béatrice Bercot, Wladimir Sougakoff, Vincent Jarlier, Laurent Raskine, Emmanuelle Cambau
Objectives: Non-tuberculous mycobacteria (NTM) are emerging pathogens causing difficult-to-treat infections. We tested a new assay (GenoType NTM-DR) that detects natural and acquired resistance mechanisms to macrolides and aminoglycosides in frequently isolated NTM species. Methods: Performance was assessed on 102 isolates including reference strains [16 Mycobacterium avium , 10 Mycobacterium intracellulare , 8 Mycobacterium chimaera , 15 Mycobacterium chelonae and 53 Mycobacterium abscessus (including subsp...
February 28, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28330892/in-vitro-susceptibility-testing-of-tedizolid-against-nontuberculous-mycobacteria
#4
Barbara A Brown-Elliott, Richard J Wallace
Tedizolid is a new oxazolidinone with improved in vitro and intracellular potency against Mycobacterium tuberculosis, including multidrug resistant strains, and some species of nontuberculous mycobacteria (NTM) compared with linezolid.Using the current Clinical and Laboratory Standards Institute (CLSI) recommended method of broth microdilution, susceptibility testing of 170 isolates of rapidly growing mycobacteria showed equivalent or lower (1- to 8-fold MIC50 and/or MIC90 values) for tedizolid compared to linezolid...
March 22, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28330270/expression-and-purification-of-a-gene-encoding-a-9-7%C3%A2-kda-pe-protein-of-mycobacterium-avium-subsp-paratuberculosis
#5
S Chandra Sekar, P P Goswami, R Deb
Mycobacterium avium subsp. paratuberculosis (Map) contains PE family antigens which are Proline and glutamic acid rich and may play important role as T-cell antigens. In the present study, the Map 1507 ORF encoding 9.7 kDa PE protein was amplified by polymerase chain reaction and cloned into E. coli vector pQE30 UA. The recombinant plasmid designated as pQ PE was transformed into E. coli M15 cells and induced with IPTG revealed the high level expression of 11.9 kDa His-fusion protein as estimated by migration in 15 % sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE)...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28326308/infection-sources-of-a-common-non-tuberculous-mycobacterial-pathogen-mycobacterium-avium-complex
#6
REVIEW
Yukiko Nishiuchi, Tomotada Iwamoto, Fumito Maruyama
Numerous studies have revealed a continuous increase in the worldwide incidence and prevalence of non-tuberculous mycobacteria (NTM) diseases, especially pulmonary Mycobacterium avium complex (MAC) diseases. Although it is not clear why NTM diseases have been increasing, one possibility is an increase of mycobacterial infection sources in the environment. Thus, in this review, we focused on the infection sources of pathogenic NTM, especially MAC. The environmental niches for MAC include water, soil, and dust...
2017: Frontiers in Medicine
https://www.readbyqxmd.com/read/28318591/reduction-of-mycobacterium-avium-ssp-paratuberculosis-in-colostrum-development-and-validation-of-2-methods-one-based-on-curdling-and-one-based-on-centrifugation
#7
M Verhegghe, G Rasschaert, L Herman, K Goossens, L Vandaele, K De Bleecker, G Vlaemynck, M Heyndrickx, J De Block
The aim of this study was to develop and validate 2 protocols (for use on-farm and at a central location) for the reduction of Mycobacterium avium ssp. paratuberculosis (MAP) in colostrum while preserving beneficial immunoglobulins (IgG). The on-farm protocol was based on curdling of the colostrum, where the IgG remain in the whey and the MAP bacteria are trapped in the curd. First, the colostrum was diluted with water (2 volumes colostrum to 1 volume water) and 2% rennet was added. After incubation (1 h at 32°C), the curd was cut and incubated again, after which whey and curd were separated using a cheesecloth...
March 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28317944/inferring-biomarkers-for-mycobacterium-avium-subsp-paratuberculosis-infection-and-disease-progression-in-cattle-using-experimental-data
#8
Gesham Magombedze, Tinevimbo Shiri, Shigetoshi Eda, Judy R Stabel
Available diagnostic assays for Mycobacterium avium subsp. paratuberculosis (MAP) have poor sensitivities and cannot detect early stages of infection, therefore, there is need to find new diagnostic markers for early infection detection and disease stages. We analyzed longitudinal IFN-γ, ELISA-antibody and fecal shedding experimental sensitivity scores for MAP infection detection and disease progression. We used both statistical methods and dynamic mathematical models to (i) evaluate the empirical assays (ii) infer and explain biological mechanisms that affect the time evolution of the biomarkers, and (iii) predict disease stages of 57 animals that were naturally infected with MAP...
March 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28317808/isolation-and-characterization-of-nontuberculous-mycobacteria-from-patients-with-pulmonary-tuberculosis-in-ghana
#9
Isaac Darko Otchere, Adwoa Asante-Poku, Stephen Osei-Wusu, Samuel Yaw Aboagye, Dorothy Yeboah-Manu
OBJECTIVE/BACKGROUND: Nontuberculous mycobacterial (NTM) species are assuming public health importance in pulmonary diseases; they are increasingly being isolated, and importantly, most NTMs do not respond to routine tuberculosis (TB) drugs. This study aimed to identify NTMs isolated from pulmonary TB cases and also determine their susceptibility to streptomycin (STR), isoniazid (INH), and rifampicin (RIF). METHODS: A total of 1755 mycobacterial isolates, obtained between August 2012 and July 2014, from 2036 smear-positive pulmonary cases were identified using polymerase chain reaction amplification of IS6110, and hsp65 gene sequencing analysis...
January 2017: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28317705/comparison-of-old-cherry-cultivars-grown-in-czech-republic-by-chemical-composition-and-bioactive-compounds
#10
Agnieszka Nawirska-Olszańska, Joanna Kolniak-Ostek, Maciej Oziembłowski, Alena Ticha, Radomir Hyšpler, Zdenek Zadak, Pavla Židová, Frantisek Paprstein
Sweet cherry fruits are readily consumed by humans, and they contain significant quantities of bioactive compounds. Fifteen sweet cherry (Prunus avium L.) old cultivars grown in the Czech Republic were examined. In fresh fruits the contents of sugars, organic acids, and phenolic compounds, and antioxidant capacity were determined. The analyses showed that the fruits of sweet cherry are characterized by high contents of bioactive compounds. Four organic acids - malic, quinic, shikimic, and fumaric acid - were determined in examined fruits...
August 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28297817/-distribution-and-drug-resistance-of-nontuberculous-mycobacteria-in-beijing
#11
J Zhang, J R Su, B C Ding, J W Liu, J L Yi, X Y Yang, N H Wang, S M Wang
Objective: To analyze the distribution and drug resistance of nontuberculous mycobacteria(NTM) in Beijing. Methods: Using PCR-fluorescence probe method we identified 1 552 mycobacterial isolates in 2009 and 1 553 mycobacterial isolates in 2013, which were stored by Beijing Research Institute for Tuberculosis Control.All identified NTM strains were confirmed by 16S rRNA gene sequencing, and drug sensitivity testing was performed by using 1% ratio method.SPSS 13.0 was used for statistical analysis. Results: The isolation rate for NTM in 2009 and 2013 was 3...
March 12, 2017: Chinese Journal of Tuberculosis and Respiratory Diseases
https://www.readbyqxmd.com/read/28291631/distribution-and-clinical-significance-of-mycobacterium-avium-complex-species-isolated-from-respiratory-specimens
#12
Su-Young Kim, Sun Hye Shin, Seong Mi Moon, Bumhee Yang, Hojoong Kim, O Jung Kwon, Hee Jae Huh, Chang-Seok Ki, Nam Yong Lee, Sung Jae Shin, Won-Jung Koh
Mycobacterium avium complex (MAC) was originally composed of 2 species, M. avium and M. intracellulare. However, several new species closely related to M. intracellulare have recently been identified. In addition, M. avium has been further subdivided into 4 subspecies. The aim of this study was to determine the proportion of different MAC species recovered from respiratory specimens and to elucidate the clinical relevance of these species. Clinical isolates, from 219 patients, that had been initially identified as M...
March 2, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28290221/microbiological-diagnosis-and-antimicrobial-sensitivity-profiles-in-diseased-free-living-raptors
#13
Anna Vidal, Laia Baldomà, Rafael A Molina-Lopez, Marga Martin, Laila Darwich
Free-living raptors (birds of prey) can act as reservoirs of potentially zoonotic agents but they also can be affected by microorganisms as target hosts. In this retrospective study, microbiological results (n=663) and antibiotic sensitivity profiles (n=108) of bacterial isolates were analyzed from diseased free-living raptors. Sixty-nine percent of cases (n=457) yielded bacteria: 58% were in pure culture and 42% were of different species. Remarkably, samples from necropsies (47%) had higher percentage of pure isolations than those obtained from clinical (31%) samples (p<0...
March 14, 2017: Avian Pathology: Journal of the W.V.P.A
https://www.readbyqxmd.com/read/28285167/the-investigation-of-the-truncated-mbta-gene-within-the-mycobactin-cluster-of-mycobacterium-avium-subspecies-paratuberculosis-as-a-novel-diagnostic-marker-for-real-time-pcr
#14
Marcel de Kruijf, Aidan Coffey, Jim O'Mahony
The inability of Mycobacterium avium subspecies paratuberculosis (MAP) to produce endogenous mycobactin in-vitro is most likely due to the presence of a truncated mbtA gene within the mycobactin cluster of MAP. The main goal of this study was to investigate this unique mbtA truncation as a potential novel PCR diagnostic marker for MAP. Novel primers were designed that were located within the truncated region and the contiguous MAP2179 gene. Primers were evaluated against non-MAP isolates and no amplicons were generated...
March 8, 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28284662/effect-of-a-150%C3%A2-mg-dose-of-rifabutin-on-serum-itraconazole-levels-in-patients-with-coexisting-chronic-pulmonary-aspergillosis-and-mycobacterium-avium-complex-lung-disease
#15
Seong Mi Moon, Byung Woo Jhun, Hyun Lee, Hye Yun Park, Kyeongman Jeon, Soo-Youn Lee, Won-Jung Koh
Patients with coexisting chronic pulmonary aspergillosis and nontuberculous mycobacterial lung disease may undergo treatment with both the antifungal itraconazole and the antimycobacterial rifamycin. However, rifamycins interact with itraconazole. We examined the effects of a 150 mg dose of rifabutin on serum itraconazole levels and found significantly lower levels in 28 patients receiving itraconazole with rifabutin (median, 0.65 μg/ml) compared with 65 patients receiving itraconazole alone (median 3.45 μg/ml, P < 0...
March 8, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28284609/evaluation-of-associations-between-genotypes-of-mycobacterium-avium-subsp-paratuberculsis-and-presence-of-intestinal-lesions-characteristic-of-paratuberculosis
#16
Petra Möbius, Elisabeth Liebler-Tenorio, Martin Hölzer, Heike Köhler
Mycobacterium avium subsp. paratuberculosis (MAP) is the causative agent of paratuberculosis affecting ruminants worldwide. Depending on the MAP-Type (MAP-C or MAP-S, cattle or sheep type), strains differ in virulence and host preference. There is not yet any strong evidence indicating that individual field strains of the same MAP-subgroup exhibit differences in virulence. The aim of this study was to evaluate a potential association between the genotype of individual field strains belonging to the MAP-C group and the presence of macroscopic intestinal lesions characteristic of paratuberculosis in the infected animals...
March 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28284486/bovine-peripheral-blood-wc1-and-wc1-neg-%C3%AE-%C3%AE-t-lymphocytes-modulate-monocyte-derived-macrophage-effector-functions-during-in-vitro-mycobacterium-avium-subspecies-paratuberculosis-infection
#17
Monica M Baquero, Brandon L Plattner
The importance of bovine γδ T lymphocytes during anti-mycobacterial immunity is recognized; however, the role of major subsets of γδ T lymphocytes (WC1(+) and WC1(neg)) in this process remains unclear. We investigated how WC1(+) and WC1(neg) γδ T lymphocyte subsets of calves modulate monocyte-derived macrophage (MDM) functions during Map infection in vitro. To achieve this, Map-infected or uninfected MDMs from young calves were co-cultured with autologous WC1(+) or WC1(neg) γδ T lymphocytes. Our data indicate that WC1(+) and WC1(neg) γδ T lymphocytes of young calves modulate effector functions of MDMs with respect to Map killing, CD11b and MHC-II expression...
January 16, 2017: Cellular Immunology
https://www.readbyqxmd.com/read/28283669/trend-analysis-suggested-a-change-in-subspecies-among-mycobacterium-avium-isolated-from-pigs-in-belgium-1967-2013
#18
K Soetaert, C Vluggen, L Duytschaever, J Denoël, V Roupie, F Smeets, N Bruffaerts, K Huygen, D Fretin, M Diels, L Rigouts, C Saegerman, V Mathys
No abstract text is available yet for this article.
March 10, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28281163/effect-of-mycobacterium-avium-subsp-paratuberculosis-map-infection-on-the-diagnostic-accuracy-for-mycobacterium-bovis-m-bovis-infection-under-field-conditions-in-cattle-belonging-to-low-m-bovis-prevalence-herds
#19
E Raffo, P Steuer, G Monti, M Salgado
Currently, the Chilean authority has implemented a National Eradication Program for bovine tuberculosis (bTB), aimed at controlling and eradicating the disease in Chile. The area under study has a low within-herd prevalence, has a relatively low number of infected herds, and is one of the major milk and beef producing areas in the country. However, so far, no attempts at eradicating the disease have been successful. It has been suggested that the diagnostic tests used were either not sensitive or specific enough...
March 10, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28280641/prosthetic-joint-infection-due-to-mycobacterium-avium-intracellulare-in-a-patient-with-rheumatoid-arthritis-a-case-report-and-review-of-the-literature
#20
Nicholas E Ingraham, Brenton Schneider, Jonathan D Alpern
Nontuberculous mycobacteria (NTM) are a rare cause of prosthetic joint infections (PJI). However, the prevalence of NTM infections may be increasing with the rise of newer immunosuppressive medications such as biologics. In this case report, we describe a rare complication of immunosuppressive therapies and highlight the complexity of diagnosing and treating PJI due to NTM. The patient is a 79-year-old Caucasian male with a history of severe destructive rheumatoid arthritis on several immunosuppressive agents and right hip osteoarthritis s/p total hip arthroplasty 15 years previously with several complex revisions, presenting with several weeks of worsening right hip and abdominal pain...
2017: Case Reports in Infectious Diseases
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