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Veterinary Research Communications

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https://www.readbyqxmd.com/read/28091882/identification-of-some-main-streptococcus-iniae-associated-proteins-relationship
#1
Fatima El Aamri, José Ángel Guillén, Daniel Padilla, Félix Acosta, Fernando Real
The surface-associated proteins play a key role in bacterial physiology and pathogenesis, and are the major targets in the development of new vaccines. These proteins contribute to the adaptation of bacteria to different hosts and environments. To study differences at the genomic level, we first sequenced the whole genome of Streptococcus iniae from fish (IUSA-1 strain) and compared it to Streptococcus iniae from human (9117 strain), revealing a high similitude between both strains. To gain further insights into host- and environment-specific differences, we then studied proteins in silico and by High Performance Liquid Chromatography...
January 14, 2017: Veterinary Research Communications
https://www.readbyqxmd.com/read/28054222/multiple-gene-typing-and-phylogeny-of-avipoxvirus-associated-with-cutaneous-lesions-in-a-stone-curlew
#2
Roberta Lecis, Fabio Secci, Elisabetta Antuofermo, Sara Nuvoli, Alessandra Scagliarini, Marco Pittau, Alberto Alberti
Avipoxvirus (APV) infections have been observed in a wide variety of wild, captive and domestic avian hosts, recently including a range of island endemic and endangered species. However, not enough is known about genome diversity and phylogenetic relationships of APVs, as well as their host-range specificity. A wild stone curlew (Burhinus oedicnemus) was recovered in Sardinia (Italy), showing large wart-like lesions and nodules on both legs and toes, which resulted positive to poxvirus by PCR. Histopathological examination of the lesions showed ballooning degeneration and large intracytoplasmic inclusion bodies consistent with APV infection...
January 4, 2017: Veterinary Research Communications
https://www.readbyqxmd.com/read/28012117/complete-genome-sequence-analysis-of-chicken-astrovirus-isolate-from-india
#3
Amrutlal K Patel, Ramesh J Pandit, Jalpa R Thakkar, Ankit T Hinsu, Vinod C Pandey, Joy K Pal, Kantilal S Prajapati, Subhash J Jakhesara, Chaitanya G Joshi
OBJECTIVE: Chicken astroviruses have been known to cause severe disease in chickens leading to increased mortality and "white chicks" condition. Here we aim to characterize the causative agent of visceral gout suspected for astrovirus infection in broiler breeder chickens. METHODS: Total RNA isolated from allantoic fluid of SPF embryo passaged with infected chicken sample was sequenced by whole genome shotgun sequencing using ion-torrent PGM platform. The sequence was analysed for the presence of coding and non-coding features, its similarity with reported isolates and epitope analysis of capsid structural protein...
December 23, 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27975177/involvement-of-histaminergic-and-noradrenergic-receptors-in-the-oxytocin-induced-food-intake-in-neonatal-meat-type-chicks
#4
Seyed Vahid Mirnaghizadeh, Morteza Zendehdel, Vahab Babapour
Oxytocin neurons have a physiological role in food intake and energy balance. Several studies have shown that central histaminergic and adrenergic systems synapse on oxytocin neurons but there is no information for their interaction on food intake regulation in birds. The purpose of this study was to examine the effects of intracerebroventricular (ICV) injection of α-fluoromethylhistidine (α-FMH, histidine decarboxylase inhibitor), chlorpheniramine (histamine H1 receptors antagonist), famotidine (histamine H2 receptors antagonist), thioperamide (histamine H3 receptors antagonist), prazosin (α1 receptor antagonist), yohimbine (α2 receptor antagonist), metoprolol (β1 adrenergic receptor antagonist), ICI 118,551 (β2 adrenergic receptor antagonist) and SR59230R (β3 adrenergic receptor antagonist) on oxytocin-induced hypophagia in 3-h food-deprived (FD3) neonatal broiler chicken...
December 14, 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27943152/oocyte-maturation-embryo-development-and-gene-expression-following-two-different-methods-of-bovine-cumulus-oocyte-complexes-vitrification
#5
Mehdi Azari, Mojtaba Kafi, Bita Ebrahimi, Roya Fatehi, Mahboobeh Jamalzadeh
OBJECTIVE: To examine the maturational competence, embryo development and expression of genes involved in oocyte maturation and cumulus expansion (GDF9, BMP15, HAS2, TNFAIP6, FGF17 and FSHr) following two standard methods of bovine COCs vitrification. METHODS: Bovine cumulus-oocyte complexes (COCs) were aspirated from slaughtered ovaries and then distributed into three groups: non-vitrified COCs (control), vitrification 1 group (V1); vitrification was performed by 15% ethylene glycol (EG) and 15% DMSO in holding media (TCM-199 with 20% FCS); and vitrification 2 group (V2); vitrification was performed by 40% EG in holding media...
December 10, 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27943151/l-carnitine-significantly-decreased-aging-of-rat-adipose-tissue-derived-mesenchymal-stem-cells
#6
Halimeh Mobarak, Ezzatollah Fathi, Raheleh Farahzadi, Nosratollah Zarghami, Sara Javanmardi
Mesenchymal stem cells are undifferentiated cells that have the ability to divide continuously and tissue regeneration potential during the transplantation. Aging and loss of cell survival, is one of the main problems in cell therapy. Since the production of free radicals in the aging process is effective, the use of antioxidant compounds can help in scavenging free radicals and prevent the aging of cells. The aim of this study is evaluate the effects of L-carnitine (LC) on proliferation and aging of rat adipose tissue-derived mesenchymal stem cells (rADSC)...
December 10, 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27933442/arterial-pulse-wave-propagation-velocity-in-healthy-dogs-by-pulse-wave-doppler-ultrasound
#7
Rodrigo B Nogueira, Lucas A Pereira, Alice F Basso, Ingrid S da Fonseca, Lorena A Alves
The aim of this study was to prospectively evaluate the carotid-femoral pulse wave velocity (PWV) values in healthy dogs using pulse wave Doppler ultrasound. A secondary aim was to determine the feasibility of this method and to report the intra- and interobserver reproducibilities of the PWV in conscious dogs. The data were studied in 30 healthy, adult, male (n = 15) and female (n = 15) dogs. The time interval marked between the R wave peak of the electrocardiogram and the intersection of the blood flow wave upstroke of the Doppler spectrum with the baseline of zero frequency was determined for the carotid (T1) and for the femoral (T2) arteries...
December 8, 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27896671/a-comparison-of-the-brainstem-auditory-evoked-response-in-healthy-ears-of-unilaterally-deaf-dogs-and-bilaterally-hearing-dogs
#8
M Plonek, J Nicpoń, K Kubiak, M Wrzosek
AIMS: Auditory plasticity in response to unilateral deafness has been reported in various animal species. Subcortical changes occurring in unilaterally deaf young dogs using the brainstem auditory evoked response have not been evaluated yet. The aim of this study was to assess the brainstem auditory evoked response findings in dogs with unilateral hearing loss, and compare them with recordings obtained from healthy dogs. METHODS: Brainstem auditory evoked responses (amplitudes and latencies of waves I, II, III, V, the V/I wave amplitude ratio, wave I-V, I-III and III-V interpeak intervals) were studied retrospectively in forty-six privately owned dogs, which were either unilaterally deaf or had bilateral hearing...
November 29, 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27896670/the-activation-of-the-ifn%C3%AE-induction-signaling-pathway-in-porcine-alveolar-macrophages-by-porcine-reproductive-and-respiratory-syndrome-virus-is-variable
#9
Christopher C Overend, Junru Cui, Marvin J Grubman, Antonio E Garmendia
BACKGROUND: It has been recognized that the expression of type I interferon (IFNα/β) may be suppressed during infection with porcine reproductive, respiratory syndrome virus (PRRSV). This causes profound negative effects on both the innate and adaptive immunity of the host resulting in persistence of infection. OBJECTIVE: Test the effects of PRRSV infection of porcine alveolar macrophages (PAMs), the main target cell, on the expression of interferon beta (IFNβ) and downstream signaling events...
November 28, 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27891565/expression-and-biochemical-characteristics-of-two-different-aldosterone-receptors-in-both-healthy-and-dilated-cardiomyopathy-dog-heart-tissue
#10
Alejandro R Reynoso Palomar, Moncerrat Rodriguez Bravo, Abel E Villa Mancera, Carlos J Mucha
Recently, replicates of the aldosterone receptor expression have been done in healthy heart dog tissues through immunohistochemistry, showing an apparent heterogeneous distribution in the four chambers. Recent studies have also identified immediate effects of aldosterone, suggesting aldosterone also produces non-genomic effects caused by an unidentified receptor. In order to study the molecular and quantitative expression characteristics of aldosterone binding receptors in the canine heart, we conducted studies, using Western Blot, in the heart from both healthy animals and animals with dilated cardiomyopathy...
November 28, 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27864728/variation-in-pestivirus-growth-in-testicle-primary-cell-culture-is-more-dependent-on-the-individual-cell-donor-than-cattle-breed
#11
Matheus N Weber, Fernando V Bauermann, Ninnet Gómez-Romero, Andy D Herring, Cláudio W Canal, John D Neill, Julia F Ridpath
The causes of bovine respiratory disease complex (BRDC) are multifactorial and include infection with both viral and bacterial pathogens. Host factors are also involved as different breeds of cattle appear to have different susceptibilities to BRDC. Infection with bovine pestiviruses, including bovine viral diarrhea virus 1 (BVDV1), BVDV2 and 'HoBi'-like viruses, is linked to the development of BRDC. The aim of the present study was to compare the growth of different bovine pestiviruses in primary testicle cell cultures obtained from taurine, indicine and mixed taurine and indicine cattle breeds...
November 18, 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27744530/expression-of-hif-1%C3%AE-odd-domain-fused-canine-caspase-3-by-egfr-promoter-driven-adenovirus-vector-induces-cytotoxicity-in-canine-breast-tumor-cells-under-hypoxia
#12
Mariko Okamoto, Ai Asamura, Ko Tanaka, Takefumi Soeda, Kyo Watanabe, Hiroyuki Mizuguchi, Teruo Ikeda
Adenovirus (Ad) vectors are widely used in cancer gene therapies. However, compared to human patients, relatively limited information is available on gene transduction efficiency or cell-specific cytotoxicity in canine tumor cells transduced with Ad vectors. Since epidermal growth factor receptor (EGFR) is highly expressed on canine breast tumor cells, we sought to develop an Ad vector based on the RGD fiber-mutant adenovirus vector (AdRGD) that expresses canine caspase 3 under the control of EGFR promoter...
December 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27618827/organic-and-mechanical-properties-of-cervidae-antlers-a-review
#13
REVIEW
P P Picavet, M Balligand
There is a resurgence of interest in the study of deer antlers. Recent research advocates their potential for use in bone xenografts. Using this working hypothesis, we can formulate many questions: do antlers really present unique or interesting mechanical properties, and if so, which factors affect these properties? Many other issues, including tissue compatibility, could be discussed; however, this article will focus on the biomechanical features of antlers. This paper reviews some answers found within current published material, and could help determine the optimal selection of some antlers for further experimental studies and clinical trials...
December 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27562511/taurine-ameliorated-thyroid-function-in-rats-co-administered-with-chlorpyrifos-and-lead
#14
Motunrayo Ganiyat Akande, Muftau Shittu, Chidiebere Uchendu, Lukuman Surakat Yaqub
Chlorpyrifos is a widely used organophosphate insecticide for domestic, agricultural and industrial purposes. Lead is a toxic heavy metal and it is used for domestic and industrial purposes. Taurine is a semi essential amino acid with bioprotective properties. The aim of this study was to investigate the effects of taurine on thyroid function in Wistar rats co-administered with chlorpyrifos and lead. The rats were divided into 5 groups of 10 rats each. The first two groups were administered with distilled water and soya oil (1 ml/kg) respectively...
December 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27448610/scc-mec-typing-and-antimicrobial-resistance-of-methicillin-resistant-staphylococcus-aureus-mrsa-from-pigs-of-northeast-india
#15
S Rajkhowa, D K Sarma, S R Pegu
Staphylococcus aureus is one of the most important pathogens of both humans and animal. Methicillin-resistant Staphylococcus aureus (MRSA) is an important human pathogen that causes serious infections both in hospitals and communities due to its multidrug resistance tendency. This study was undertaken to characterize the MRSA isolates from pigs and to determine the antimicrobial resistance of these isolates. Forty nine MRSA strains (one strain per positive pig) isolated from pigs of Northeast India were characterized by SCCmec typing and antimicrobial resistance...
December 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27388168/erratum-to-safety-and-efficacy-of-an-e2-glycoprotein-subunit-vaccine-produced-in-mammalian-cells-to-prevent-experimental-infection-with-bovine-viral-diarrhoea-virus-in-cattle
#16
Andrea Pecora, María Sol Pérez Aguirreburualde, Agustín Ostachuk, Alejandra Aguirreburualde, Maria Rosa Leunda, Anselmo Odeon, Sebastián Chiavenna, Diego Bochoeyer, Marcelo Spitteler, Jorge L Filippi, Maria J Dus Santos, Susana M Levy, Andrés Wigdorovitz
No abstract text is available yet for this article.
December 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27344152/immunological-and-pathological-investigations-in-equine-experimental-uveitis
#17
Galina P Simeonova, Svetozar Z Krastev, Radostin S Simeonov
BACKGROUND: The pathogenic mechanism of equine recurrent uveitis (ERU) is still poorly defined and many variations between experimental animal models and spontaneous disease exist. OBJECTIVES: The aim of our study was to investigate if Th17 cell-mediated response plays role in the pathogenesis of the used experimental model in horses and to reveal its pathological findings. METHODS: Experimental uveitis was induced in 6 healthy horses. The concentrations of retinal autoantigen CRALBP and IL-17 were measured using ELISA in aqueous humor and vitreous body of the 12 inflamed eyes as well as in 12 control non-inflamed eyes taken from 6 horses in slaughter house...
December 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27255108/genotypic-and-phenotypic-detection-of-capsular-polysaccharide-and-biofilm-formation-in-staphylococcus-aureus-isolated-from-bovine-milk-collected-from-brazilian-dairy-farms
#18
Alessandra P S Salimena, Carla C Lange, Cecilia Camussone, Marcelo Signorini, Luis F Calvinho, Maria A V P Brito, Cristiano A V Borges, Alessandro S Guimarães, João B Ribeiro, Letícia C Mendonça, Roberta H Piccoli
Staphylococcus aureus is a pathogen that frequently causes mastitis in bovine herds worldwide. This pathogen produces several virulence factors, including cell-associated adhesins, toxic and cytolytic exoproteins, and capsular polysaccharides. The aim of the present study was to test for the presence of genes involved in capsular polysaccharide production and biofilm formation in S. aureus isolated from bovine mastitis samples collected from 119 dairy herds located in three different Brazilian regions, as well as to assay the production of capsular polysaccharides and biofilm, in vitro...
December 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27142053/dynamics-of-mycoplasma-hyopneumoniae-seroconversion-and-infection-in-pigs-in-the-three-main-production-systems
#19
Enrico Giacomini, Nicola Ferrari, Alessandra Pitozzi, Michela Remistani, Daniele Giardiello, Dominiek Maes, Giovanni Loris Alborali
In this study, we investigated the dynamics of Mycoplasma hyopneumoniae infections in 66 pig farms, with different production systems (one-, two-, and three-site systems), and considered different risk factors. Serological assay was used to detect serum antibodies against M. hyopneumoniae and real time polymerase chain reaction (RT-PCR) was performed to detect M. hyopneumoniae DNA in tracheobronchial swabs. Results demonstrated that M. hyopneumoniae infection status was predominantly influenced by the age of the animals and the type of production system...
June 2016: Veterinary Research Communications
https://www.readbyqxmd.com/read/27094043/immunoprotection-of-recombinant-eg-p29-against-echinococcus-granulosus-in-sheep
#20
Hao Wang, Zihua Li, Fu Gao, Jiaqing Zhao, Mingxing Zhu, Xin He, Nan Niu, Wei Zhao
OBJECTIVE: This study aims to investigate the immunoprotection of recombinant Eg.P29 (rEg.P29) vaccine and analyze the underlying mechanism in sheep. METHODS: Three groups of male sheep were immunized subcutaneously with rEg.P29 and PBS, Freund's complete adjuvant as controls, respectively. After prime-boost vaccination, the sheep were challenged with encapsulated Echinococcus granulosus eggs. The percentage of protection in sheep was determined 36 weeks after the infection...
June 2016: Veterinary Research Communications
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