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https://www.readbyqxmd.com/read/28757198/dissecting-the-immune-pathways-stimulated-following-injection-vaccination-of-rainbow-trout-oncorhynchus-mykiss-against-enteric-redmouth-disease-erm
#1
Eakapol Wangkahart, Christopher J Secombes, Tiehui Wang
Enteric redmouth disease (ERM or yersiniosis) is one of the most important diseases of salmonids and leads to significant economic losses. It is caused by the Gram-negative bacterium Yersinia ruckeri but can be controlled by bacterin vaccination. The first commercial ERM vaccine was licenced in 1976 and is one of the most significant and successful health practices within the aquaculture industry. Although ERM vaccination provides complete protection, knowledge of the host immune response to the vaccine and the molecular mechanisms that underpin the protection elicited is limited...
July 27, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28736920/obtainment-and-evaluation-of-adjuvant-effect-of-the-aromatic-geranyl-derivative-filifolinone-in-bacterin-of-piscirickettsia-salmonis
#2
M Parra, B Valenzuela, M Imarai, B Modak
No abstract text is available yet for this article.
July 24, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28724973/alternatives-to-mineral-oil-adjuvants-in-vaccines-against-aeromonas-salmonicida-subsp-salmonicida-in-rainbow-trout-offer-reductions-in-adverse-effects
#3
Kasper Rømer Villumsen, Erling Olaf Koppang, Dennis Christensen, Anders Miki Bojesen
In an effort to reduce the frequency and severity of adverse reactions seen from the use of mineral oil adjuvants in salmonid fish, the effects of two alternative adjuvants were assessed, focusing on the induction of adverse effects as well as protection. Using rainbow trout (Oncorhynchus mykiss) as recipients, injection vaccines based on formalin-inactivated Aeromonas salmonicida subspecies salmonicida were formulated with CpG oligodeoxynucleotides, the liposomal cationic adjuvant formulation 01 (CAF01) or with Freund's incomplete adjuvant and administered intraperitoneally...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28707702/secondary-immune-response-of-rainbow-trout-following-repeated-immersion-vaccination
#4
R M Jaafar, A Al-Jubury, J K Chettri, I Dalsgaard, P W Kania, K Buchmann
Teleosts are able to raise a protective immune response, comprising both innate and adaptive elements, against various pathogens. This is the basis for a widespread use of vaccines, administered as injection or immersion, in the aquaculture industry. It has been described that repeated injection vaccination of fish raises a secondary immune response, consisting of rapid, accelerated and increased antibody reaction. This study reports how rainbow trout responds to repeated immersion vaccination against yersiniosis (ERM) caused by the bacterial pathogen Yersinia ruckeri...
July 14, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28668566/vaccination-of-horses-with-lyme-vaccines-for-dogs-induces-short-lasting-antibody-responses
#5
Cassandra Guarino, Sanda Asbie, Jennifer Rohde, Amy Glaser, Bettina Wagner
Borrelia burgdorferi can induce Lyme disease. Approved Lyme vaccines for horses are currently not available. In an effort to protect horses, veterinarians are using Lyme vaccines licensed for dogs. However, data to assess the response of horses to, or determine the efficacy of this off-label vaccine use are missing. Here, antibodies against outer surface protein A (OspA), OspC, and OspF were quantified in diagnostic serum submissions from horses with a history of vaccination with canine Lyme vaccines. The results suggested that many horses respond with low and often short-lasting antibody responses...
June 28, 2017: Vaccine
https://www.readbyqxmd.com/read/28648038/-effects-of-na-h-exchanger-1-inhibitor-on-intestinal-injury-of-rats-with-burn-sepsis-and-the-mechanism
#6
W P Li, G Y Zhao, X K Yang
Objective: To observe the effects of Na(+) /H(+) exchanger 1 (NHE1) inhibitor on intestinal injury of rats with burn sepsis, and to explore the possible mechanism preliminarily. Methods: Ninety SD rats were divided into control group, pure sepsis group, and NHE1 inhibitor group according to the random number table, with 30 rats in each group. Full-thickness scald (hereinafter referred to as burn) model with 20% total body surface area were reproduced on the back of rats in pure sepsis and NHE1 inhibitor groups, and then 50 μL liquid of Pseudomonas aeruginosa ATCC 27853 (2×10(5) colony forming unit/mL) were injected into the center of wounds on the back...
June 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28624468/fish-mass-immunization-against-virus-with-recombinant-spiny-bacterins
#7
Julio Coll
Bacterins obtained from recombinant bacteria displaying heterologous antigens in its surface coded by prokaryotic rather than eukaryotic expression plasmids (here called "spiny" bacterins or spinycterins), have been used to increase fish immunogenicity of recombinant viral protein fragments. To explore their immunogenicity, five bacterial-specific membrane anchor-motifs characterized in the literature (Nmistic, Mistic, NTD, YAIN and YBEL) were genetically fused to the immunorelevant cystein-free 117 amino acid fragment II from the ORF149 of cyprinid herpes virus 3 (frgIICyHV3)...
August 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28622574/analysis-of-adipose-tissue-immune-gene-expression-after-vaccination-of-rainbow-trout-with-adjuvanted-bacterins-reveals-an-association-with-side-effects
#8
Kimberly A Veenstra, Tiehui Wang, Ayham Alnabulsi, Alex Douglas, K Spencer Russell, Lincoln Tubbs, Juliette Ben Arous, Christopher J Secombes
Most existing fish vaccines are presented in the form of oil-based emulsions delivered by intraperitoneal injection. Whilst very effective they are frequently associated with inflammatory responses that can result in clinically significant side-effects often involving the adipose tissue that is in direct contact with the vaccine. To explore the potential of immune gene expression changes in the adipose tissue of fish to be markers of vaccination efficacy or development of side-effects we have studied the response to a bacterial (Aeromonas salmonicida) vaccine administered with two different adjuvants...
June 13, 2017: Molecular Immunology
https://www.readbyqxmd.com/read/28588575/gut-associated-lymphoid-tissue-a-key-tissue-inside-the-mucosal-immune-system-of-hens-immunized-with-escherichia-coli-f4
#9
Maria F Peralta, Alejandra Magnoli, Fabrisio Alustiza, Armando Nilson, Raúl Miazzo, Adriana Vivas
Immunoglobulin Y (IgY) is the predominant antibody found in hen's (Gallus domesticus) egg yolk. This antibody, developed against several microorganisms in hen egg yolk, has been successfully used as an alternative to immunoglobulins from mammals for use in immunodiagnostics and immunotherapy. Enteropathogenic Escherichia coli (E.coli) F4 is the main etiological agent associated with swine neonatal diarrhea, and it causes notable economic losses in swine production. The aim of the present study was to evaluate the relationship between humoral immune response and the activation of gut-associated lymphoid tissue (GALT) in laying hens intramuscularly immunized with E...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28548700/efficacy-testing-of-35-year-old-commercially-produced-erm-bacterin-reveals-the-remarkable-stability-of-this-product
#10
T J Welch, T D Goodrich, S E LaPatra
No abstract text is available yet for this article.
May 26, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28522991/brachyspira-hyodysenteriae-and-b-pilosicoli-proteins-recognized-by-sera-of-challenged-pigs
#11
Vanessa Casas, Arantza Rodríguez-Asiain, Roberto Pinto-Llorente, Santiago Vadillo, Montserrat Carrascal, Joaquin Abian
The spirochetes Brachyspira hyodysenteriae and B. pilosicoli are pig intestinal pathogens that are the causative agents of swine dysentery (SD) and porcine intestinal spirochaetosis (PIS), respectively. Although some inactivated bacterin and recombinant vaccines have been explored as prophylactic treatments against these species, no effective vaccine is yet available. Immunoproteomics approaches hold the potential for the identification of new, suitable candidates for subunit vaccines against SD and PIS. These strategies take into account the gene products actually expressed and present in the cells, and thus susceptible of being targets of immune recognition...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28496441/discovery-of-novel-leptospirosis-vaccine-candidates-using-reverse-and-structural-vaccinology
#12
André Alex Grassmann, Frederico Schmitt Kremer, Júlia Cougo Dos Santos, Jéssica Dias Souza, Luciano da Silva Pinto, Alan John Alexander McBride
Leptospira spp. are diderm (two membranes) bacteria that infect mammals causing leptospirosis, a public health problem with global implications. Thousands of people die every year due to leptospirosis, especially in developing countries with tropical climates. Prophylaxis is difficult due to multiple factors, including the large number of asymptomatic hosts that transmit the bacteria, poor sanitation, increasing numbers of slum dwellers, and the lack of an effective vaccine. Several leptospiral recombinant antigens were evaluated as a replacement for the inactivated (bacterin) vaccine; however, success has been limited...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28433326/status-of-the-development-of-a-vaccine-against-mycoplasma-bovis
#13
REVIEW
Jose Perez-Casal, Tracy Prysliak, Teresa Maina, Muhammad Suleman, Steve Jimbo
Mycoplasma bovis is an important pathogen of cattle and, despite numerous efforts an effective vaccine for control of the disease it causes remains elusive. Although we now know more about the biology of this pathogen, information is lacking about appropriate protective antigens, the type of immune response that confers protection and adjuvants selection. The use of conserved recombinant proteins, selected using in silico approaches, as components of a vaccine may be a better choice over bacterin-based vaccines due to the limited protection afforded by them and adverse reactions caused by them...
May 19, 2017: Vaccine
https://www.readbyqxmd.com/read/28391058/control-of-bovine-leptospirosis-aspects-for-consideration-in-a-tropical-environment
#14
REVIEW
G Martins, W Lilenbaum
Due to the complex and dynamic epidemiology of leptospirosis on livestock, control is still controversial and frustrating. In this context, this paper discusses the main challenges and perspectives for the control of bovine leptospirosis, particularly under tropical conditions. In order to reduce the effects of the disease in cattle, it has been proposed that the control should integrate the trinomial antibiotic therapy (mainly streptomycin); vaccination (whole-cell bacterins); and environmental management...
April 1, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28378574/efficacy-of-vaccination-and-nisin-z-treatments-to-eliminate-intramammary-staphylococcus-aureus-infection-in-lactating-cows
#15
Ran Guan, Jun-Qiang Wu, Wei Xu, Xiao-Yan Su, Song-Hua Hu
This study evaluated the effect of a Staphylococcus aureus bacterin and nisin on bovine subclinical mastitis. A total of 75 Holstein subclinically mastitic cows were randomly allocated to three groups with 25 cows per group. In group I, an intramammary infusion of nisin Z at a dose of 2.50×10(6) IU was carried out once daily for three days, and an autogenous S. aureus bacterin was inoculated into the supramammary lymph node one week before and one week after nisin treatment. In group II, nisin was administered in the same way as in group I, but no bacterin was inoculated...
2017: Journal of Zhejiang University. Science. B
https://www.readbyqxmd.com/read/28337203/a-universal-vaccine-against-leptospirosis-are-we-going-in-the-right-direction
#16
André Alex Grassmann, Jéssica Dias Souza, Alan John Alexander McBride
Leptospirosis is the most widespread zoonosis in the world and a neglected tropical disease estimated to cause severe infection in more than one million people worldwide every year that can be combated by effective immunization. However, no significant progress has been made on the leptospirosis vaccine since the advent of bacterins over 100 years. Although protective against lethal infection, particularly in animals, bacterin-induced immunity is considered short term, serovar restricted, and the vaccine can cause serious side effects...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28301479/ligb-subunit-vaccine-confers-sterile-immunity-against-challenge-in-the-hamster-model-of-leptospirosis
#17
Neida L Conrad, Flávia W Cruz McBride, Jéssica D Souza, Marcelle M Silveira, Samuel Félix, Karla S Mendonça, Cleiton S Santos, Daniel A Athanazio, Marco A Medeiros, Mitermayer G Reis, Odir A Dellagostin, Alan J A McBride
Neglected tropical diseases, including zoonoses such as leptospirosis, have a major impact on rural and poor urban communities, particularly in developing countries. This has led to major investment in antipoverty vaccines that focus on diseases that influence public health and thereby productivity. While the true, global, impact of leptospirosis is unknown due to the lack of adequate laboratory diagnosis, the WHO estimates that incidence has doubled over the last 15 years to over 1 million cases that require hospitalization every year...
March 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28284602/a-novel-chimeric-protein-composed-of-recombinant-mycoplasma-hyopneumoniae-antigens-as-a-vaccine-candidate-evaluated-in-mice
#18
Natasha Rodrigues de Oliveira, Sérgio Jorge, Charles Klazer Gomes, Caroline Rizzi, Violetta Dias Pacce, Thais Farias Collares, Leonardo Garcia Monte, Odir Antônio Dellagostin
Enzootic Pneumonia (EP) is caused by the Mycoplasma hyopneumoniae pathogenic bacteria, and it represents a significant respiratory disease that is responsible for major economic losses within the pig industry throughout the world. The bacterins that are currently commercially available have been proven to offer only partial protection against M. hyopneumoniae, and the development of more efficient vaccines is required. Several recombinant antigens have been evaluated via different immunization strategies and have been found to be highly immunogenic...
March 2017: Veterinary Microbiology
https://www.readbyqxmd.com/read/28194450/assessment-of-the-adjuvant-activity-of-mesoporous-silica-nanoparticles-in-recombinant-mycoplasma-hyopneumoniae-antigen-vaccines
#19
Veridiana Gomes Virginio, Natalia Costantin Bandeira, Fernanda Munhoz Dos Anjos Leal, Marcelo Lancellotti, Arnaldo Zaha, Henrique Bunselmeyer Ferreira
The adjuvant potential of two mesoporous silica nanoparticles (MSNs), SBa-15 and SBa-16, was assessed in combination with a recombinant HSP70 surface polypeptide domain from Mycoplasma hyopneumoniae, the etiological agent of porcine enzootic pneumonia (PEP). The recombinant antigen (HSP70212-600), previously shown as immunogenic in formulation with classic adjuvants, was used to immunize BALB/c mice in combination with SBa-15 or SBa-16 MSNs, and the effects obtained with these formulations were compared to those obtained with alum, the adjuvant traditionally used in anti-PEP bacterins...
January 2017: Heliyon
https://www.readbyqxmd.com/read/28182704/subunit-vaccine-candidates-against-aeromonas-salmonicida-in-rainbow-trout-oncorhynchus-mykiss
#20
Moonika Haahr Marana, Louise von Gersdorff Jørgensen, Jakob Skov, Jiwan Kumar Chettri, Andreas Holm Mattsson, Inger Dalsgaard, Per Walter Kania, Kurt Buchmann
Aeromonas salmonicida subsp. salmonicida is the etiological agent of furunculosis and a major fish health problem in salmonid aquaculture worldwide. Injection vaccination with commercial mineral oil-adjuvanted bacterin vaccines has been partly successful in preventing the disease but in Danish rainbow trout (Oncorhynchus mykiss, Walbaum) aquaculture furunculosis outbreaks still occur. In this study we tested the efficacy of experimental subunit vaccines against A. salmonicida infection in rainbow trout. We utilized in silico screening of the proteome of A...
2017: PloS One
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