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Research in Veterinary Science

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https://www.readbyqxmd.com/read/28544893/agreement-of-invasive-and-non-invasive-blood-pressure-measurements-in-anaesthetised-pigs-using-the-surgivet-v9203
#1
Philomena P Tuohy, Anthea L Raisis, Eleanor A Drynan
The automated oscillometric method is a common method for measuring blood pressure non-invasively and is broadly and confidently used in the veterinary setting. Twenty-one pigs undergoing anesthesia for exploratory laparotomy were enrolled in a study to evaluate the performance of the Surgivet V9203 non-invasive blood pressure (NIBP) monitor. The aim was to compare measurements of arterial blood pressure obtained simultaneously using the Surgivet V9203 oscillometric system and an intra-arterial catheter-transducer system, both at the level of the metatarsus...
May 19, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28549300/evaluation-of-the-in-vitro-effect-of-boldo-and-meadowsweet-plant-extracts-on-the-expression-of-antimicrobial-peptides-and-inflammatory-markers-in-canine-keratinocytes
#2
Domenico Santoro, Kim Ahrens, Ryan Vesny, Christelle Navarro, Hugues Gatto, Rosanna Marsella
Dogs with allergies are prone to skin infections and treatments/preventatives to boost innate immune-defenses are beneficial. The aim of this study was to evaluate the effects of Boldo and Meadowsweet extracts on the expression of β-defensins (cBD), cathelicidin (cCath), and pro-inflammatory cytokines in canine keratinocyte. This study had two phases. Phase I evaluated mRNA expression of cBD103 and cCath, and secretion of cCath, IL-8 and TNF-α by keratinocytes harvested from healthy (n=5) and atopic (n=5) age-matched beagles exposed to Boldo (2% to 0...
May 17, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28535467/molecular-approaches-to-the-diagnosis-and-monitoring-of-production-diseases-in-pigs
#3
REVIEW
Timothy A Giles, Aouatif Belkhiri, Paul A Barrow, Neil Foster
Production disease in pigs is caused by a variety of different pathogens, mainly enteric and respiratory and can result in significant economic loss. Other factors such as stress, poor husbandry and nutrition can also contribute to an animal's susceptibility to disease. Molecular biomarkers of production disease could be of immense value by improving diagnosis and risk analysis to determine best practice with an impact on increased economic output and animal welfare. In addition to the use of multiplex PCR or microarrays to detect individual or mixed pathogens during infection, these technologies can also be used to monitor the host response to infection via gene expression...
May 17, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28531807/high-post-natal-mortality-associated-with-defects-in-lung-maturation-and-reduced-adiposity-in-mice-with-gestational-exposure-to-high-fat-and-n-acetylcysteine
#4
Lyda Williams, Maureen J Charron, Rani S Sellers
Studies have demonstrated that maternal consumption of a high fat diet (HFD) increases offspring susceptibility to metabolic disease. This study was initiated to identify the mechanistic contribution of oxidative stress on this phenomenon. Two weeks prior to mating, dams were fed either HFD or Control diet with or without supplementation with the anti-oxidant N-acetylcysteine (NAC). Pups born to HFD dams had reduced crown rump length (CRL) at birth and higher neonatal mortality compared to pups from Control dams...
May 14, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28527400/effects-of-combretastatin-a-4-phosphate-on-canine-normal-and-tumor-tissue-derived-endothelial-cells
#5
Yusuke Izumi, Keisuke Aoshima, Yuki Hoshino, Satoshi Takagi
Combretastatin A-4 phosphate (CA4P) selectively blocks tumor blood flow. However, the detailed mechanisms through which CA4P specifically affects tumor blood vessels are not well understood. Recent reports revealed that tumor tissue-derived endothelial cells (TECs) have various specific features in comparison with normal tissue-derived endothelial cells (NECs). Thus, abnormalities in TECs may be involved in the selective vascular blockade mechanism of CA4P. In this study, we evaluated the effects of CA4P on canine NECs and TECs using confocal microscopy...
May 13, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28527399/the-effects-of-melamine-with-or-without-cyanuric-acid-on-immune-function-in-ovalbumin-sensitized-mice
#6
Rong H Yin, Qiao Dong, Hua S Li, Jing Yuan, Xi T Li, Rong L Yin, Wen Li, Wen C Wang, Bao S Liu, Xiao H Han, Ren F Wang, Xin Wang, Wen L Bai
Melamine is commonly used in the chemical industry, and it has been found to exist on food processing equipment and utensils. Previous investigations suggested that melamine alone or its combination with cyanuric acid appears to be toxic to immune system in animals. The objective of this study is to investigate the potential effects of melamine with or without cyanuric acid on immune function in ovalbumin- sensitized mice. Our data indicated that melamine-related administration caused a significant decreasing in the content of IL-4 in mice in comparison to negative control group...
May 13, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28525837/differentially-expressed-jak-stat-signaling-pathway-genes-and-target-micrornas-in-the-spleen-of-necrotic-enteritis-afflicted-chicken-lines
#7
Anh Duc Truong, Deivendran Rengaraj, Yeojin Hong, Cong Thanh Hoang, Yeong Ho Hong, Hyun S Lillehoj
The JAK signal transducer and STAT signaling pathway is an important regulator of cell proliferation, differentiation, survival, motility, apoptosis, immune response, and development. In this study, we used RNA-Sequencing, qRT-PCR, and bioinformatics tools to investigate the differential expression of JAK-STAT pathway genes, their interactions, and regulators in the spleen of two genetically disparate chicken lines (Marek's disease-resistant line 6.3 and MD-susceptible line 7.2) induced necrotic enteritis (NE) disease by co-infection with Eimeria maxima and Clostridium perfringens...
May 13, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28521256/antibody-detection-tests-improve-the-sensitivity-of-tuberculosis-diagnosis-in-cattle
#8
C Casal, J A Infantes, M A Risalde, A Díez-Guerrier, M Domínguez, I Moreno, B Romero, L de Juan, J L Sáez, R Juste, C Gortázar, L Domínguez, J Bezos
We evaluated the sensitivity (Se) of the single cervical intradermal tuberculin (SIT) test, two interferon-gamma (IFN-γ) assays and three different antibody detection techniques for bovine tuberculosis (bTB) diagnosis in 131 mixed beef breed cattle. The results of the diagnostic techniques performed over the whole herd, and over the animals confirmed as infected based on the presence of lesions compatible with the disease and/or M. bovis isolation were compared to determine apparent prevalence (AP) and Se...
May 11, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28511131/genetic-diversity-and-phylogenetic-analysis-of-the-orf5-gene-of-prrsv-from-central-china
#9
Liujun Zhang, Yan Feng, Darren P Martin, Jing Chen, Sixu Ma, Pingan Xia, Gaiping Zhang
To more fully understand the genetic diversity and molecular epidemiology of prevailing porcine reproductive and respiratory syndrome virus (PRRSV) in Henan province of China, 112 full-length ORF5 gene sequences, originating from Henan province between 2006 and 2015, were subjected to sequence variation and phylogenetic analysis. Phylogenetic analysis revealed that all Henan isolates belonged to the Type 2 genotype and could be further divided into three subgroups. Subgroup 1 and 2 viruses predominated in Henan and subgroup 2 overtook subgroup 1 as the most prevalent PRRSV between 2006 and 2015...
May 11, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28521255/pharmacokinetics-of-ketamine-and-norketamine-enantiomers-after-racemic-or-s-ketamine-iv-bolus-administration-in-dogs-during-sevoflurane-anaesthesia
#10
Noemi Romagnoli, Rima N Bektas, Annette P Kutter, Andrea Barbarossa, Paola Roncada, Sonja Hartnack, Regula Bettschart-Wolfensberger
The aims of this study were to measure plasma levels of R- and S-ketamine and their major metabolites R- and S-norketamine following single intravenous bolus administration of racemic or S-ketamine in sevoflurane anaesthetised dogs and to calculate the relevant pharmacokinetic profiles. Six adult healthy beagle dogs were used in the study. An intravenous bolus of 4mg/kg racemic ketamine (RS-KET) or 2mg/kg S-ketamine (S-KET) was administered, with a three-weeks washout period between treatments. Venous blood samples were collected at fixed times until 900min and R- and S-ketamine as well as R- and S-norketamine plasma levels determined by liquid chromatography coupled with tandem mass spectrometry...
May 6, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28505587/dietary-bacillus-subtilis-based-direct-fed-microbials-alleviate-lps-induced-intestinal-immunological-stress-and-improve-intestinal-barrier-gene-expression-in-commercial-broiler-chickens
#11
Ujvala Deepthi Gadde, Sungtaek Oh, Youngsub Lee, Ellen Davis, Noah Zimmerman, Tom Rehberger, Hyun Soon Lillehoj
This study investigated the effects of Bacillus subtilis-based probiotics on the performance, modulation of host inflammatory responses and intestinal barrier gene expression of broilers subjected to LPS challenge. Chickens were randomly allocated to one of the 3 dietary treatment groups - control, antibiotic, or probiotic. At 14days, half of the chickens in each treatment were injected with LPS (1mg/kg body weight), and the other half injected with sterile PBS. Chickens fed probiotics weighed significantly more than controls at 15days of age, irrespective of immune challenge...
May 6, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28505550/histological-differences-in-the-adrenal-glands-and-cortisol-levels-of-suckling-dairy-goat-kids-in-enriched-and-non-enriched-environments
#12
A P Rosas-Trigueros, I E Candanosa-Aranda, A E Ducoing-Watty, J Gutiérrez-Molotla, F Galindo, A M Sisto-Burt
Intensive production systems can negatively affect the welfare of goats. Environmental enrichment techniques can be used to reduce stress. The aim of this study was analyze the effect of environmental enrichment on the histological characteristics of adrenal glands, cortisol levels and weekly weight gain of suckling Alpine French male kids under confinement. A randomised design was used to test the effect of the treatment. The animals (n=20) were randomly assigned to two treatments (enriched and non-enriched) with two replicates each...
May 6, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28505549/intramammary-inoculation-of-panax-ginseng-plays-an-immunoprotective-role-in-staphylococcus-aureus-infection-in-a-murine-model
#13
P Silvestrini, C Beccaria, E A L Pereyra, M S Renna, H H Ortega, L F Calvinho, B E Dallard, C Baravalle
The immunoprotective effect of Panax ginseng (Pg) extract was investigated in a mouse mastitis model. Lactating female mice were intramammarily inoculated with Pg or placebo, and then were challenged with S. aureus, while other group was inoculated with S. aureus alone. The number of bacteria recovered from mammary glands was significantly lower in Pg-treated S. aureus-infected mice (group I) compared with placebo-treated S. aureus-infected mice (group II) and S. aureus-infected mice (group III). The mRNA expression of TLR2, TLR4, IL-1α and TNF-α was influenced by treatment; being the transcript levels for all genes higher in group I compared with group II and III...
May 6, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28502901/neuraminidase-activity-of-blue-eye-disease-porcine-rubulavirus-specificity-affinity-and-inhibition-studies
#14
Gerardo Santos-López, María T Borraz-Argüello, Luis Márquez-Domínguez, Juan Carlos Flores-Alonso, Humberto Ramírez-Mendoza, Bernard Priem, Sébastien Fort, Verónica Vallejo-Ruiz, Julio Reyes-Leyva, Irma Herrera-Camacho
Porcine rubulavirus (PorPV), also known as La Piedad Michoacan Virus (LPMV) causes encephalitis and reproductive failure in newborn and adult pigs, respectively. The hemagglutinin-neuraminidase (HN) glycoprotein is the most exposed and antigenic of the virus proteins. HN plays central roles in PorPV infection; i.e., it recognizes sialic acid-containing cell receptors that mediate virus attachment and penetration; in addition, its neuraminidase (sialic acid releasing) activity has been proposed as a virulence factor...
May 6, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28502900/nuclear-morphometry-in-histological-specimens-of-canine-prostate-cancer-correlation-with-histological-subtypes-gleason-score-methods-of-collection-and-survival-time
#15
Guido Di Donato, Renée Laufer-Amorim, Chiara Palmieri
Ten normal prostates, 22 benign prostatic hyperplasia (BPH) and 29 prostate cancer (PC) were morphometrically analyzed with regard to mean nuclear area (MNA), mean nuclear perimeter (MNP), mean nuclear diameter (MND), coefficient of variation of the nuclear area (NACV), mean nuclear diameter maximum (MDx), mean nuclear diameter minimum (MDm), mean nuclear form ellipse (MNFe) and form factor (FF). The relationship between nuclear morphometric parameters and histological type, Gleason score, methods of sample collection, presence of metastases and survival time of canine PC were also investigated...
May 6, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28501649/different-activation-of-monocyte-derived-macrophages-by-antimicrobial-peptides-at-a-titanium-tibial-implantation-in-rabbits
#16
Joanna Wessely-Szponder, Tomasz Szponder, Ryszard Bobowiec
The aim of our study was to assess the functional and morphological features of monocyte derived Mfs from rabbits with titanium (Ti) tibial implants, their ability to polarize towards M1 or M2 and their reactivity after stimulation with neutrophil antimicrobial peptides extract (AMP). The study was conducted on six White New Zealand rabbits with tibial implants of pure titanium Grade 2. Blood was taken before implantation and 14days after biomaterial implantation. Then, blood-derived Mfs were cultured and their function was assessed on the basis of morphological changes, generation of nitric oxide (NO), superoxide, and proteases release after treatment with LPS or dexamethasone (Dex)...
May 6, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28502902/retinoic-acid-mediated-anti-inflammatory-responses-in-equine-immune-cells-stimulated-by-lps-and-allogeneic-mesenchymal-stem-cells
#17
Leila Abdelhamid, Hayam Hussein, Mostafa Ghanem, Nour Eissa
Retinoic acid (RA), an active metabolite of vitamin A, has shown potential therapeutic immunomodulatory properties. Allogeneic mesenchymal stem cells (MSCs)-based therapy is an effective approach to induce tissue healing and regeneration in many equine orthopedic conditions. However, MSCs-based therapies induced inflammatory responses in vivo. This study aimed to: 1. Determine the effect of RA cell culture treatment on inflammatory responses of lipopolysaccharides (LPS)- and allogeneic MSCs-stimulated peripheral blood mononuclear cells (PBMCs)...
May 5, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28501752/effects-of-dust-formaldehyde-and-delayed-feeding-on-early-postnatal-development-of-broiler-chickens
#18
Pieter de Gouw, Lotte J F van de Ven, Sander Lourens, Bas Kemp, Henry van den Brand
We investigated effects of perinatal exposure to dust or formaldehyde and the moment of first feed intake after hatching on broiler chicken development during the first week of life. Four environmental treatments were used from 468 until 512h of incubation: control (CONT), heat treated dust (HTD), untreated dust (UTD) or formaldehyde disinfection (FORM). After hatching, all chickens were assigned to 1 of 2 feeding treatments: early feeding (EF; feed and water available in the hatcher) or delayed feeding (DF)...
May 4, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28499213/effect-of-excoecaria-agallocha-on-non-specific-immune-responses-and-disease-resistance-of-oreochromis-niloticus-against-streptococcus-agalactiae
#19
A A Laith, A G Mazlan, A W Effendy, M A Ambak, W W I Nurhafizah, A S Alia, A Jabar, M Najiah
The current study was designed to evaluate the effects of Excoecaria agallocha leaf extracts on immune mechanisms and resistance of tilapia, Oreochromis niloticus, after challenge with Streptococcus agalactiae. Fish were divided into 6 groups; groups 1-5 fed with E. agallocha leaf extracts at 10, 20, 30, 40 and 50mgkg(-1) level, respectively. Group 6 were fed without extract addition and acted as control. E. agallocha extracts were administered as feed supplement in fish diet for 28days and the hematological, immunological, and growth performance studies were conducted...
May 4, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28500993/nonsynonymous-changes-of-equine-lentivirus-receptor-1-elr1-gene-in-amino-acids-involved-in-the-interaction-with-equine-infectious-anemia-virus-eiav
#20
C M Corbi-Botto, S A Sadaba, M E Zappa, P Peral-García, S Díaz
Equine lentivirus receptor-1 (ELR1) has been characterized as the specific functional receptor that mediates equine infectious anemia virus (EIAV) entrance to horse macrophages. This receptor is tumor necrosis factor receptor superfamily member 14 (TNFRSF14). The aim of this study was to investigate the occurrence of allelic variants in the coding sequence of equine TNFRSF14 gene by screening for single-nucleotide polymorphisms (SNPs) in different equine populations. Forty seven horse samples were randomly selected from a reservoir of EIAV-seropositive and seronegative samples collected from different outbreaks and regions of Argentina...
May 2, 2017: Research in Veterinary Science
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