Veterinary Medicine Commons^™

Complete Closed Genome Sequences Of Mannheimia Haemolytica Serotypes A1 And A6, Isolated From Cattle, Gregory P. Harhay, Sergey Koren, Adam M. Phillippy, D. Scott Mcvey, Jennifer Kuszak, Michael L. Clawson, Dayna M. Harhay, Michael P. Heaton, Carol G. Chitko-Mckown, Timothy P. L. Smith

School of Veterinary and Biomedical Sciences: Faculty Publications

Mannheimia haemolytica is a respiratory pathogen affecting cattle and related ruminants worldwide. M. haemolytica is commonly associated with bovine respiratory disease complex (BRDC), a polymicrobial multifactorial disease.Wepresent the first two complete closed genome sequences of this species, determined using an automated assembly pipeline requiring no manual finishing.

Development And Evaluation Of A Replicon Particle Vaccine Expressing The E2 Glycoprotein Of Bovine Viral Diarrhea Virus (Bvdv) In Cattle, John Dustin Loy, Jill Gander, Mark Mogler, Ryan Vander Veen, Julia Ridpath, Delbert Hank Harris, Kurt Kamrud

School of Veterinary and Biomedical Sciences: Faculty Publications

Background: Bovine viral diarrhea virus is one of the most significant and costly viral pathogens of cattle worldwide. Alphavirus-derived replicon particles have been shown to be safe and highly effective vaccine vectors against a variety of human and veterinary pathogens. Replicon particles are non-propagating, DIVA compatible, and can induce both humoral and cell mediated immune responses. This is the first experiment to demonstrate that Alphavirus-based replicon particles can be utilized in a standard prime/boost vaccination strategy in calves against a commercially significant bovine pathogen.

Findings: Replicon particles that express bovine viral diarrhea virus sub-genotype 1b E2 glycoprotein were …

A Dysfunctional Tricarboxylic Acid Cycle Enhances Fitness Of Staphylococcus Epidermidis During Β-Lactam Stress, Vinai Chittenzham Thomas, Lauren Kinkhead, Ashley Janssen, Carolyn Schaeffer, Keith Woods, Jill Lindgren, Johnathan Peaster, Sujata Chaudhari, Marat Sadykov, Joselyn Jones, Sameh Mohamadi Abdelghani, Matthew Zimmerman, Kenneth W. Bayles, Greg Somerville, Paul Fey

School of Veterinary and Biomedical Sciences: Faculty Publications

A recent controversial hypothesis suggested that the bactericidal action of antibiotics is due to the generation of endogenous reactive oxygen species (ROS), a process requiring the citric acid cycle (tricarboxylic acid [TCA] cycle). To test this hypothesis, we assessed the ability of oxacillin to induce ROS production and cell death in Staphylococcus epidermidis strain 1457 and an isogenic citric acid cycle mutant. Our results confirm a contributory role for TCA-dependent ROS in enhancing susceptibility of S. epidermidis toward β-lactam antibiotics and also revealed a propensity for clinical isolates to accumulate TCA cycle dysfunctions presumably as a way to tolerate these …

Interferon Inducible Protein Ifi35 Negatively Regulates Rig-I Antiviral Signaling And Supports Vesicular Stomatitis Virus Replication, Anshuman Das, Phat X. Dinh, Debasis Panda, Asit K. Pattnaik

School of Veterinary and Biomedical Sciences: Faculty Publications

In a genome-wide siRNA screen, we recently identified the interferon (IFN) inducible protein 35 (IFI35, also known as IFP35) as a factor required for VSV infection. Studies reported here were conducted to further understand the role and requirement of IFI35 in VSV infection. Consistent with the siRNA screening data, we found that depletion of IFI35 led to reduced VSV replication at the level of viral gene expression. Although no direct interaction of IFI35 with the viral replication machinery was observed, we found that IFI35 negatively regulated the host innate immune response and rescued poly(I:C)-induced inhibition of VSV replication. Promoter-driven reporter …

Characterization Of A Serologic Marker Candidate For Development Of A Live-Attenuated Diva Vaccine Against Porcine Reproductive And Respiratory Syndrome Virus, Hiep Vu, Byungjoon Kwon, Marcelo De Lima, Asit K. Pattnaik, Fernando A. Osorio

School of Veterinary and Biomedical Sciences: Faculty Publications

DIVA (differentiating infected from vaccinated animals) vaccines have proven extremely useful for control and eradication of infectious diseases in livestock. We describe here the characterization of a serologic marker epitope, so-called epitope-M201, which can be a potential target for development of a live-attenuated DIVA vaccine against porcine reproductive and respiratory syndrome virus (PRRSV). Epitope-M201 is located at the carboxyl terminus (residues 161-174) of the viral M protein. The epitope is highly immunodominant and well-conserved among type-II PRRSV isolates. Rabbit polyclonal antibodies prepared against this epitope are non-neutralizing; thus, the epitope does not seem to contribute to the protective immunity against …

Trex1 Regulates Lysosomal Biogenesis And Interferon-Independent Activation Of Antiviral Genes, Maroof Hasan, James Koch, Dinesh Rakheja, Asit K. Pattnaik, James Brugarolas, Igor Dozmorov, Beth Levine, Edward K. Wakeland, Min Ae Lee-Kirsch, Nan Yan

School of Veterinary and Biomedical Sciences: Faculty Publications

Innate immune sensing of viral nucleic acids triggers type I interferon (IFN) production, which activates interferon-stimulated genes (ISGs) and directs a multifaceted antiviral response. ISGs can also be activated through IFN-independent pathways, although the precise mechanisms remain elusive. Here we found that the cytosolic exonuclease Trex1 regulates the activation of a subset of ISGs independently of IFN. Both Trex1−/− mouse and TREX1-mutant human cells express high levels of antiviral genes and are refractory to viral infections. The IFN-independent activation of antiviral genes in Trex1−/− cells requires STING, TBK1 and IRF3 and IRF7. We also found that Trex1-deficient cells display expanded …

Glutaredoxin-2 Is Required To Control Proton Leak Through Uncoupling Protein-3, Ryan J. Mailloux, Jian Ying Xuan, Brittany Beauchamp, Marjorie F. Lou, Mary-Ellen Harper

School of Veterinary and Biomedical Sciences: Faculty Publications

Glutathionylation has emerged as a key modification required for controlling protein function in response to changes in cell redox status. Recently, we showed that the glutathionylation state of uncoupling protein-3 (UCP3) modulates the leak of protons back into the mitochondrial matrix, thus controlling reactive oxygen species production. However, whether or not UCP3 glutathionylation is mediated enzymatically has remained unknown because previous work relied on the use of pharmacological agents, such as diamide, to alter the UCP3 glutathionylation state. Here, we demonstrate that glutaredoxin-2 (Grx2), a matrix oxidoreductase, is required to glutathionylate and inhibit UCP3. Analysis of bioenergetics in skeletal muscle …

Sequence-Optimized And Targeted Double-Stranded Rna As A Therapeutic Antiviral Treatment Against Infectious Myonecrosis Virus In Litopenaeus Vannamei, J. Dustin Loy, Duan S. Loy, Mark A. Mogler, Bruce Janke, Kurt Kamrud, D. L. Hank Harris, Lyric C. Bartholomay

School of Veterinary and Biomedical Sciences: Faculty Publications

Infectious myonecrosis virus (IMNV) is a significant and emerging pathogen that has a tremendous impact on the culture of the Pacific white shrimp Litopenaeus vannamei. IMNV first emerged in Brazil in 2002 and subsequently spread to Indonesia, causing large economic losses in both countries. No existing therapeutic treatments or effective interventions currently exist for IMNV. RNA interference (RNAi) is an effective technique for preventing viral disease in shrimp. Here, we describe the efficacy of a double-stranded RNA (dsRNA) applied as an antiviral therapeutic following virus challenge. The antiviral molecule is an optimized dsRNA construct that targets an IMNV sequence …

Seroepidemiology Of Canine Brucellosis In Beijing, China, Fu Xiang, Zhaofei Xia, Qingming Wu, Yanyun Chen, Jinhau Yu, Jianging Wan

Turkish Journal of Veterinary & Animal Sciences

A seroepidemiological survey of canine brucellosis was carried out in Beijing, China. Serum samples were taken from dogs admitted to the Beijing Companion Animal Hospital for immigration and emigration inspection, including dogs from 4 breeding farms and stray dogs (n = 1200, 14 districts), between January 2008 and April 2009. All of the sera were first tested and preselected by Rose Bengal plate agglutination test (RBAT), and the positive samples by RBAT were determined by tube agglutination test (TAT) again. Of the 1200 dogs studied, 60 (5%) were positive by RBAT, 21 (51.7%) of which were confirmed by TAT. The …

Whole-Blood Thrombelastography Using Calcium Chloride Activation In Healthy Cats, Ramazan Çöl, Alicia Montgomery, Maria Cristina Iazbik, Ashley Defelice, Poulo Vilar Saavedra, Guillermo Couto

Turkish Journal of Veterinary & Animal Sciences

Thrombelastography (TEG, Haemoscope Corp., Niles, IL, USA) allows for a global evaluation of the hemostatic system; while conventional coagulation tests typically evaluate only one part of the coagulation system, TEG simultaneously examines the interaction between platelets, clotting factors, the fibrinolytic system, and clot retraction mechanisms. Since its development, TEG has been widely employed in human clinical medicine and research, but has only recently gained popularity in veterinary medicine. The purpose of this study was to establish TEG reference ranges in healthy cats using the citrated native technique. In this study, 31 clinically healthy cats were evaluated. We sampled healthy adult …

Cytotoxicity Of Nickel Ions For Human Osteoblasts In The Context Of Orthodontic Treatment In Humans And Animals, Marcin Mikulewicz, Katarzyna Chojnacka, Iwona Kochanowska, Agnieszka Dziewicka, Maciej Janeczek, Jerzy Cieplik, Aleksander Chrószcz

Turkish Journal of Veterinary & Animal Sciences

In the present work, the biocompatibility of orthodontic devices was tested by the propagation of human osteoblasts. A different methodological approach was applied. Since the materials used in human and veterinary orthodontics (not in implantology) had been tested, osteoblasts were not implanted on the surface of the biomaterial, but have been cultured in the medium containing the products of corrosion. In the present work, osteoblasts were propagated in the medium spiked with Ni(II) salt versus the control. Osteoblast cells (live, dead, and total) were counted under light microscope. The statistical significance of the differences between the experimental and control groups …

Blood Chemistry, Thyroid Hormones, And Insulin Serum Content In Bulls Fed A Ration Limited In Energy, Adam Oler, Beata Glowinska

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to determine blood biochemical profile and selected hormone concentrations in bulls fed a diet limited in energy content. Bulls in the experimental group (I) over the 63 days prior to slaughter were provided with ration energy limited to 80% of the maintenance requirement. Animals in the control group (II) received a balanced ration. Blood samples from all of the animals were collected 3 times (A, B, C). The decrease in the ration energy level did not have a significant effect on the concentrations of glucose, total protein, total cholesterol, high-density lipoproteins, triglycerides, and the …

Metazoan Parasites Of Fish Species From Lake Sığırcı (Edirne, Turkey), Hafi̇ze Si̇bel Çolak

Turkish Journal of Veterinary & Animal Sciences

A total of 366 specimens of 10 fish species inhabiting Lake Sığırcı were examined between April 2009 and February 2010. Inside or outside of these fish, 33 parasite species were identified. From these parasites, 18 monogenean, 5 digenean trematode, 3 cestode, 3 acanthocephalan, 3 nematode, and 1 Mollusca: Bivalvia (glochidia) species were recorded. Diplostomum spp., Tylodelphys clavata, glochidia-larvae, and monogenean species were found to be common parasites in all the fish species examined. The highest prevalence and mean infection intensity with Diplostomum spp. were found in Lepomis gibbosus (prevalence 91.6%, mean intensity 5.6 individuals per fish) and in Scardinius erythrophthalmus …

Immune Responses To Dietary Inclusion Of Prebiotic-Based Mannan-Oligosaccharide And Β-Glucan In Broiler Chicks Challenged With Salmonella Enteritidis, Ali Asghar Sadeghi, Amineh Mohammadi, Parvin Shawrang, Mehdi Aminafshar

Turkish Journal of Veterinary & Animal Sciences

This study was performed to evaluate the effect of dietary prebiotic-based mannan-oligosaccharide and \beta -glucan on immune organ weights, white blood cell profiles, and antibody titers against Newcastle and infectious bursal disease viruses in broiler chicks challenged with Salmonella enteritidis. The addition of prebiotics to the diet of unchallenged chicks had no effect on antibody titers and other measured parameters. Salmonella challenging decreased the relative weights of immune organs, increased white blood cells and the heterophil-to-lymphocyte ratio, and decreased the antibody titers against Newcastle and infectious bursal disease viruses. Inclusion of prebiotics to the diet of challenged chicks increased the …

Influence Of Blood Storage Time On Viral Rna Extraction For The Detection Of Bovine Viral Diarrhea Virus In Persistently Infected Cattle, Yingxia Liu, Jie Cao, Junjie Zhang, Kai Huang, Changming Qi

Turkish Journal of Veterinary & Animal Sciences

This study aimed to determine the maximum permissible storage times of blood and serum infected with bovine viral diarrhea virus (BVDV). Viral RNA was successfully extracted from blood and serum that were stored at room temperature (RT) for 7 days and was detected by 1-step RT-PCR. The results of this study demonstrate that BVDV-infected blood can be stored at RT for 7 days and that serum can be stored for 10 days without influencing the viral RNA extraction for the detection of BVDV.

A Clinical Case: Vitamin C-Responsive Dermatosis In A Holstein Native Cross Bull Calf, Amin Anoushepour, Mehdi Sakha, Pejman Mortazavi

Turkish Journal of Veterinary & Animal Sciences

A male pony foal aged 2 days, reportedly not passing urine since birth and showing moderate signs of colic, was presented for treatment. The clinical examination revealed moderate tachycardia, tachypnea, and mild abdominal distension. Uroperitoneum was confirmed by peritoneocentesis and abdominal fluid-to-serum creatinine ratio (>2:1). After stabilization of the patient, tube cystotomy was performed using infusion set tubing to bypass the urine, allowing the tear on the caudodorsal wall of the bladder to heal itself without suturing. The foal resumed normal urination on day 6 and the catheter was removed 3 days later. Complications were not detected during the …

Cutaneous Asthenia (Ehlers–Danlos Syndrome) In A Cat, Banu Dokuzeylül, Eli̇f Demet Altun, Tamer Hali̇t Özdoğan, Hasan Hakan Bozkurt, Seçki̇n Serdar Arun, Mehmet Erman Or

Turkish Journal of Veterinary & Animal Sciences

Ehlers-Danlos syndrome (EDS), or dermatosparaxis, is a rare hereditary disease of the connective tissue, which is characterized by skin hyperextensibility and laxity. In the present article, the case of a crossbred female spayed cat, at the age of 2 years, was presented with hyperelasticity of the skin, alopecia, and an ulcerative wound on the left hind leg. The animal's dorsum was hyperextensible, smooth to the touch, and could be easily torn with minor traumas. To the best of the authors' knowledge, the present report is the first documented feline case of cutaneous asthenia in Turkey.

The Effect Of Soy Oil Addition To The Diet Of Broiler Chicks On The Immune Response, Ali Asghar Sadeghi, Mahsa Mirmohseni, Parvin Shawrang, Mehdi Aminafshar

Turkish Journal of Veterinary & Animal Sciences

The objective of this study was to evaluate antibody titers of challenged broiler chicks fed diets supplemented with soy oil. In a completely randomized design, 120 chicks were assigned to 3 treatments (isoenergetic and isonitrogenous diets based on corn-soybean meal containing 0%, 2%, or 4% soy oil), with 4 replicates for each treatment and 10 chicks per replicate. The challenging program included vaccination against Newcastle disease (B1 vaccine on day 12 by eye drop; Lasota vaccine on days 19 and 32 by drinking) and infectious bursal disease (Gumboro D78 vaccine on days 12 and 24 by eye drop). Blood samples …

Detection Of Fecal Coronavirus Antigen In Diarrheic Calves Of High- And Average-Producing Holstein Dairy Cows, Khalil Badiei, Mehrdad Pourjafar, Mohsen Ghane

Turkish Journal of Veterinary & Animal Sciences

From January to December 2009, 661 fecal samples from natural cases of diarrheic calves were taken by veterinary staff from the Department of Large Animal Internal Medicine of Shiraz Veterinary School and veterinary practitioners in Fars Province, Iran. The samples were taken from 267 diarrheic calves of high-producing dairy cows (HPDCs) and 394 diarrheic calves of average-producing Holstein dairy cows (APDCs). Fecal samples were collected and submitted for the laboratory diagnosis of coronavirus antigens. Herd selection was based on geographical location and density of cattle in the region. All herds had HPDC and APDC coronavirus-infected diarrheic calves in their population. …

Localization Of Lactobacillus Plantarum In Bacterial Profile Of Conjunctiva Of Clinically Healthy Cattle, Abdullah Araghi Sooreh, Meisam Baniardalan

Turkish Journal of Veterinary & Animal Sciences

The aim of this study was to determine the normal conjunctival bacterial flora and the effects of sex and age variations on them in healthy cattle in Urmia, Iran. The animals (n = 50) were selected from 2 sexes and divided into 2 age groups. Swabs were taken from the inferior conjunctival sac of both eyes (n = 100) and were cultured on blood and MacConkey agar. All (100%) of the specimens yielded positive bacterial isolations. The bacterial isolates (in order of decreasing frequency) were Lactobacillus plantarum, Escherichia coli, Bacillus cereus, Proteus mirabilis, Enterobacter aerogenes, Staphylococcus epidermidis, and S. aureus. …