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https://www.readbyqxmd.com/read/29770134/comparative-immune-and-stress-related-transcript-response-induced-by-air-exposure-and-vibrio-anguillarum-bacterin-in-rainbow-trout-oncorhynchus-mykiss-and-gilthead-seabream-sparus-aurata-mucosal-surfaces
#1
Ali Reza Khansari, Joan Carles Balasch, Eva Vallejos-Vidal, David Parra, Felipe E Reyes-López, Lluís Tort
Fish have to face various environmental challenges that may compromise the efficacy of the immune response in mucosal surfaces. Since the effect of acute stress on mucosal barriers in fish has still not been fully elucidated, we aimed to compare the short-term mucosal stress and immune transcriptomic responses in a freshwater (rainbow trout, Oncorhynchus mykiss ) and a marine fish (gilthead seabream, Sparus aurata ) to bacterial immersion ( Vibrio anguillarum bacterin vaccine) and air exposure stress in skin, gills, and intestine...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29766005/the-enhancement-of-the-pasteurella-s-bacterin-by-propolis-extracts
#2
Tarek Adnan Ahmad, Samar Saeed Rammah, Salah Ahmed Sheweita, Medhat Haroun, Laila Hamdy El-Sayed
Background: Pasteurella multocida continues to pose a danger to prone farm and wild animals all over the world. Chemotherapeutic treatments are progressively losing their effectiveness, last for long time, and cost a lot of money, as well as being toxic to human consumers. Therefore, clearing the way for immunization as a big-wheel alternative against the economic grain. Yet, the vaccines available in the market do not confer the necessary protection against the pathogen. The integration of the well adjuvanted killed vaccine with the attenuated vaccines proved to offer an effective protection to the host animals...
April 2018: Reports of Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/29691454/heterologous-dna-prime-protein-boost-immunization-with-reca-and-flid-offers-cross-clade-protection-against-leptospiral-infection
#3
Veerapandian Raja, Sankaran Sobana, Charles Solomon Akino Mercy, Bianca Cotto, Durlav Prasad Bora, Kalimuthusamy Natarajaseenivasan
The emergence of >300 serovars of Leptospira confounded the use of generalized bacterin, the whole cell lysate, as vaccines to control leptospirosis. Because of substantial genetic and geographic heterogeneity among circulating serovars, one vaccine strain per serovar cannot be efficacious against all the serovars. We have performed heterologous DNA prime-protein boost vaccination challenge studies in hamsters using in vivo expressed, leptospiral recombinase A (RecA) and flagellar hook associated protein (FliD)...
April 24, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29678230/dynamic-distribution-of-formalin-inactivated-edwardsiella-tarda-in-olive-flounder-paralichthys-olivaceus-post-intramuscular-injection
#4
Chuili Zeng, Xiaoqian Tang, Yang Du, Xiuzhen Sheng, Jing Xing, Wenbin Zhan
Intramuscular (i.m.) injection is one of the common delivery methods of vaccination in aquaculture, which could induce an ideal immune protection to fish. In the present study, the olive flounders (Paralichthys olivaceus) were injected intramuscularly with 200 μl of three concentrations of formalin-inactivated Edwardsiella tarda bacterin (107 , 108 , 109 CFU ml-1 ) to investigate the transportation and dynamic distribution of antigen uptake in tissues by absolute real-time quantitative PCR (qPCR). The amount of uptaken antigen increased firstly, and then decreased...
May 2018: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/29615259/new-trends-in-innovative-vaccine-development-against-actinobacillus-pleuropneumoniae
#5
REVIEW
Abraham Loera-Muro, Carlos Angulo
Actinobacillus pleuropneumoniae is the etiological agent of porcine pleuropneumonia, a respiratory disease leading to severe economic losses in the swine industry. The most widely used commercial vaccines are bacterins comprising inactivated whole cells of A. pleuropneumoniae but these have only been partially effective in preventing disease. Innovative immuno-prophylactic preparations of A. pleuropneumoniae based on ApxI, ApxII, ApxIII, ApxIV toxins and outer membrane proteins, among others (i.e. RnhB, GalU, GalT, HflX, ComL, LolB, LppC), have high protective efficacy in mice and pigs...
April 2018: Veterinary Microbiology
https://www.readbyqxmd.com/read/29475510/th-17-cell-mediated-immune-responses-to-mycoplasma-bovis-proteins-formulated-with-montanide-isa61-vg-and-curdlan-are-not-sufficient-for-protection-against-an-experimental-challenge-with-mycoplasma-bovis
#6
Tracy Prysliak, Teresia Maina, Jose Perez-Casal
The current avenues for prevention and/or control of Mycoplasma bovis infection in cattle involve antibiotic treatment of affected animals, herd management practices including separation and or culling infected animals, and the use of commercial vaccines, which offer limited protection. Some bacterin vaccines may cause negative reactions; therefore a different approach is needed, such as the use of recombinant vaccines based on protective antigens formulated with effective adjuvants. The role of Th-17 immune responses in protection against bacterial infections has been investigated for several pathogens...
March 2018: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/29474474/lipidomic-analysis-of-immune-activation-in-equine-leptospirosis-and-leptospira-vaccinated-horses
#7
Paul L Wood, Margaret Steinman, Erdal Erol, Craig Carter, Undine Christmann, Ashutosh Verma
Currently available diagnostic assays for leptospirosis cannot differentiate vaccine from infection serum antibody. Several leptospiral proteins that are upregulated during infection have been described, but their utility as a diagnostic marker is still unclear. In this study, we undertook a lipidomics approach to determine if there are any differences in the serum lipid profiles of horses naturally infected with pathogenic Leptospira spp. and horses vaccinated against a commercially available bacterin. Utilizing a high-resolution mass spectrometry serum lipidomics analytical platform, we demonstrate that cyclic phosphatidic acids, diacylglycerols, and hydroperoxide oxidation products of choline plasmalogens are elevated in the serum of naturally infected as well as vaccinated horses...
2018: PloS One
https://www.readbyqxmd.com/read/29462425/chitosan-adjuvanted-mycoplasma-gallisepticum-bacterin-via-intraocular-administration-enhances-mycoplasma-gallisepticum-protection-in-commercial-layers
#8
A Limsatanun, J Sasipreeyajan, S Pakpinyo
Mycoplasma gallisepticum (MG) causes respiratory signs and economic losses in the poultry industry. MG vaccination is one of the effective prevention and control measures that have been used around the world. Our previous study demonstrated that chitosan-adjuvanted MG bacterin could effectively reduce pathological lesions induced by MG and that chitosan could be used as an adjuvant in MG bacterin. The present study determining the efficacy of MG bacterins against the Thai MG strain was based on vaccine programs...
February 15, 2018: Poultry Science
https://www.readbyqxmd.com/read/29459489/fifteen-month-duration-of-immunity-for-the-serovar-grippotyphosa-fraction-of-a-tetravalent-canine-leptospirosis-vaccine
#9
Deborah A Grosenbaugh, Maria Camila Pardo
Forty-four specific pathogen-free beagles, median age 65 days, received two subcutaneous doses of either a commercially available, five-way combination vaccine or the same vaccine in combination with a tetravalent Leptospira bacterin (Canicola, Grippotyphosa, Icterohaemorrhagiae, Pomona). They were subsequently challenged with a pathogenic strain L kirschneri serovar Grippotyphosa 470 days following completion of the vaccination protocol. Titres of agglutinating serum antibodies were determined at various time points before and after both vaccination and challenge, along with postchallenge reisolation of the challenge organisms from blood and urine, and evaluation of renal histopathology...
February 19, 2018: Veterinary Record
https://www.readbyqxmd.com/read/29431246/recombinant-apxiv-protein-enhances-protective-efficacy-against-actinobacillus-pleuropneumoniae-in-mice-and-pigs
#10
H-C Wu, P-H Yeh, K-J Hsueh, W-J Yang, C-Y Chu
AIMS: Available bacterins, commercial or autogenous, for Actinobacillus pleuropneumoniae disease control have, thus far, shown debatable protective efficacy and only in homologous challenges. Our study sought to determine whether the addition of reombinant protein ApxIV to the multicomponent vaccine could enhance protection against homologous and heterologous challenge of A. pleuropneumoniae. METHODS AND RESULTS: The virulence of ApxI, ApxII, ApxIV and OMP were cloned and expressed using a prokaryotic system; these recombinant proteins were combined with inactivated A...
February 12, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29375890/field-evaluation-of-piglet-vaccination-with-a-mycoplasma-hyopneumoniae-bacterin-as-compared-to-a-ready-to-use-product-including-porcine-circovirus-2-and-m-hyopneumoniae-in-a-conventional-french-farrow-to-finish-farm
#11
Didier Duivon, Isabelle Corrégé, Anne Hémonic, Martial Rigaut, David Roudaut, Rika Jolie
Background: A controlled randomized trial was performed on a well-managed conventional French 180-sow farm. The trial compared the growth performances of piglets vaccinated at weaning (single shot) either with a commercial monovalent Mycoplasma hyopneumoniae bacterin vaccine or with a commercial bivalent vaccine (Porcilis® PCV M Hyo) against M. hyopneumoniae and porcine circovirus 2 (PCV2). The farm's porcine reproductive and respiratory syndrome status was stable, and most diseases (enzootic pneumonia, atrophic rhinitis, post-weaning multisystemic wasting syndrome) were controlled by routine vaccination...
2018: Porcine Health Management
https://www.readbyqxmd.com/read/29246780/comparison-of-two-indirect-elisa-coating-antigens-for-the-detection-of-dairy-cow-antibodies-against-pasteurella-multocida
#12
Pallop Tankaew, Wanwisa Srisawat, Tawatchai Singhla, Khajornsak Tragoolpua, Yasushi Kataoka, Takuo Sawada, Nattawooti Sthitmatee
The ELISA is recognized as an efficient diagnostic tool for antibody detection, but there is no standard ELISA assay for detection of antibodies against hemorrhagic septicemia (HS) in cattle. The present study reports on an indirect ELISA assay for antibody detection of HS in dairy cows, and evaluates the sensitivity (Se) and specificity (Sp) of the method using a Bayesian approach. An indirect ELISA was developed with two types of heat extract antigens, Pasteurella multocida strains P-1256 and M-1404, as coating antigens...
February 2018: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/29122476/efficacy-of-leptospiral-commercial-vaccines-on-the-protection-against-an-autochtonous-strain-recovered-in-brazil
#13
Rafael Bazaglia Sonada, Sérgio Santos de Azevedo, Francisco Rafael Martins Soto, Diego Figueiredo da Costa, Zenaide Maria de Morais, Gisele Oliveira de Souza, Amane Paldês Gonçales, Fabiana Miraglia, Sílvio Arruda Vasconcellos
In swine and bovines, leptospirosis prevention and control is carried out via vaccination of susceptible animals using bacterins. However, the efficiency of leptospirosis vaccines has been questioned. This work aimed to investigate the potency of five leptospirosis vaccines sold commercially in Brazil, challenging the animals with one autochthonous strain of Leptospira, Canicola serovar, denoted LO4, isolated from swine. The standard protocol was followed, and renal carriers of Leptospira were identified among the surviving animals by culture and PCR...
October 12, 2017: Brazilian Journal of Microbiology: [publication of the Brazilian Society for Microbiology]
https://www.readbyqxmd.com/read/29103697/antigenic-characterization-of-moraxella-bovis-moraxella-bovoculi-and-moraxella-ovis-strains-with-potential-use-in-vaccines
#14
Ananda Paula Kowalski, Grazieli Maboni, Letícia Trevisan Gressler, Julia Pires Espíndola, Cláudia Balzan, Caiane Tasca, João Antônio Guizzo, Fabricio Rochedo Conceição, Rafael Frandoloso, Agueda Castagna de Vargas
Moraxella bovis is historically known as the primary agent of infectious bovine keratoconjunctivitis (IBK). However, Moraxella bovoculi and Moraxella ovis are also reported to be involved in the pathogenesis of IBK, therefore, these three species should be included in the development of a new vaccine with a broad-spectrum protection against the disease natural challenge. In this study we investigated the antigenic properties of clinical isolates and reference strains of M. bovis, M. bovoculi and M. ovis using a novel in vitro approach for vaccine evaluation based on two techniques, flow cytometry and western blotting (WB)...
October 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/29097324/effect-of-oral-booster-vaccination-of-rainbow-trout-against-yersinia-ruckeri-depends-on-type-of-primary-immunization
#15
Rzgar M Jaafar, Azmi Al-Jubury, Inger Dalsgaard, Asma MohammadKarami, Per W Kania, Kurt Buchmann
Vaccination of rainbow trout against Enteric Redmouth Disease (ERM) caused by Yersinia ruckeri can be successfully performed by administering vaccine (a bacterin consisting of formalin killed bacteria) by immersion, bath or injection. Booster immunization is known to increase the protection of fish already primed by one of these vaccination methods. Oral vaccination of trout (administering vaccine in feed) is an even more convenient way of presenting antigen to the fish but the effect of an oral booster has not previously been described in detail...
October 30, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29079106/induction-of-a-balanced-igg1-igg2-immune-response-to-an-experimental-challenge-with-mycoplasma-bovis-antigens-following-a-vaccine-composed-of-emulsigen%C3%A2-idr-peptide1002-and-poly-i-c
#16
Tracy Prysliak, Teresia Maina, Lu Yu, Muhammad Suleman, Steve Jimbo, Jose Perez-Casal
Prevention and or control of Mycoplasma bovis infections in cattle have relied on the treatment of animals with antibiotics; herd management including separation and or culling infected animals; and the use of vaccines with limited protection. Due to the negative reactions and incomplete protection observed after vaccination with some bacterin-based vaccines, there is a need to put more efforts in the development of recombinant-based vaccines. However, the arsenal of antigens that may be suitable for a fully protective vaccine is rather limited at this point...
October 24, 2017: Vaccine
https://www.readbyqxmd.com/read/28983933/effect-of-orally-administered-vibrio-bacterin-on-immunity-survival-and-growth-in-tiger-shrimp-penaeus-monodon-grow-out-culture-ponds
#17
A K Ray, C Gopal, H G Solanki, T Ravisankar, P K Patil
Vibriosis is one of the important diseases causing economic loss to the shrimp industry worldwide. The present study reports field observations on the immune stimulatory effect of vibrio bacterin in commercial tiger shrimp (Penaeus monodon) grow-out culture ponds (n = 62) which were grouped under three stocking densities; low (6-8 nos per m2 ), medium (9-11 nos per m2 ) and high (12-14 nos per m2 ). The bacterin was administered in feed as a top dressing at final concentration equivalent to 2 × 108 CFU per kilogram feed twice a week throughout the culture period...
December 2017: Letters in Applied Microbiology
https://www.readbyqxmd.com/read/28882798/modulatory-in%C3%A2-vitro-effect-of-stress-hormones-on-the-cytokine-response-of-rainbow-trout-and-gilthead-sea-bream-head-kidney-stimulated-with-vibrio-anguillarum-bacterin
#18
Ali Reza Khansari, David Parra, Felipe E Reyes-López, Lluís Tort
In fish, the stress response and their consequences in the immune system have been widely described. Recently, a differential cytokine regulation between rainbow trout (Oncorhynchus mykiss) and gilthead sea bream (Sparus aurata) was reported after treatment with stress hormones together with their receptor antagonists. Nevertheless, there is no evidence of whether antagonists for stress hormone receptors may influence the interaction between hormones and cytokines after bacterial administration. Thus, the aim of our study was to evaluate the cytokine expression in the presence of stress hormones (cortisol, ACTH, adrenaline), hormone receptor antagonists and inactivated Vibrio anguillarum bacterin in rainbow trout and gilthead sea bream head kidney primary cell culture (HKPCC)...
September 4, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28844720/development-and-standardization-of-an-in-house-indirect-elisa-for-detection-of-duck-antibody-to-fowl-cholera
#19
Pichayanut Poolperm, Thanya Varinrak, Yasushi Kataoka, Khajornsak Tragoolpua, Takuo Sawada, Nattawooti Sthitmatee
Serological tests, such as agglutination and indirect hemagglutination assay (IHA), have been used to identify antibodies against Pasteurella multocida in poultry sera, but none are highly sensitive. An enzyme-linked immunosorbent assays (ELISA) has been used with varying degrees of success in attempts to monitor seroconversion in vaccinated poultry, but are not suitable for diagnosis. Commercial ELISA kits are available for chickens and turkeys, but not for ducks. The present study reports development and standardization of an in-house indirect ELISA for detection of duck antibody to fowl cholera...
November 2017: Journal of Microbiological Methods
https://www.readbyqxmd.com/read/28828973/be-aware-of-immunogenic-but-not-protective-antigens-the-actinobacillus-pleuropneumoniae-pala-as-an-example
#20
Caihong Liu, Yurou Cao, Jihong Yang, Haobin Zhao, Kashif Rafiq Zahid, Jin Zhao, Chao Qi, Jinlin Liu
BACKGROUND: Identification of immunogenic antigens is an important step for the vaccine improvement. Previous studies indicated that Actinobacillus pleuropneumoniae PalA is homologous to a Haemophilus influenzae protective antigen Hi-PAL (P6) protein. However, PalA protein adversely affects the Apx toxinbased subunit vaccine. The role of PalA in the inactivated vaccine is not known, and the mechanism involved in the PalA-mediated interference has not been investigated. OBJECTIVES: The main objective of this study was to investigate the possible impacts of PalA on the protective immunity of A...
2017: Protein and Peptide Letters
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