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https://www.readbyqxmd.com/read/28677421/molecular-detection-of-viral-agents-in-free-ranging-and-captive-neotropical-felids-in-brazil
#1
Mariana Malzoni Furtado, Sueli Akemi Taniwaki, Iracema Nunes de Barros, Paulo Eduardo Brandão, José Luiz Catão-Dias, Sandra Cavalcanti, Laury Cullen, Claudia Filoni, Anah Tereza de Almeida Jácomo, Rodrigo Silva Pinto Jorge, Nairléia Dos Santos Silva, Leandro Silveira, José Soares Ferreira Neto
We describe molecular testing for felid alphaherpesvirus 1 (FHV-1), carnivore protoparvovirus 1 (CPPV-1), feline calicivirus (FCV), alphacoronavirus 1 (feline coronavirus [FCoV]), feline leukemia virus (FeLV), feline immunodeficiency virus (FIV), and canine distemper virus (CDV) in whole blood samples of 109 free-ranging and 68 captive neotropical felids from Brazil. Samples from 2 jaguars ( Panthera onca) and 1 oncilla ( Leopardus tigrinus) were positive for FHV-1; 2 jaguars, 1 puma ( Puma concolor), and 1 jaguarundi ( Herpairulus yagouaroundi) tested positive for CPPV-1; and 1 puma was positive for FIV...
July 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28671491/seroprevalences-of-feline-leukemia-virus-and-feline-immunodeficiency-virus-infection-in-cats-in-the-united-states-and-canada-and-risk-factors-for-seropositivity
#2
Amie N Burling, Julie K Levy, H Morgan Scott, Michael M Crandall, Sylvia J Tucker, Erin G Wood, Jessie D Foster
OBJECTIVE To estimate seroprevalences for FeLV antigen and anti-FIV antibody and risk factors for seropositivity among cats in the United States and Canada. DESIGN Cross-sectional study. ANIMALS 62,301 cats tested at 1,396 veterinary clinics (n = 45,406) and 127 animal shelters (16,895). PROCEDURES Blood samples were tested with a point-of-care ELISA for FeLV antigen and anti-FIV antibody. Seroprevalence was estimated, and risk factors for seropositivity were evaluated with bivariate and multivariable mixed-model logistic regression analyses adjusted for within-clinic or within-shelter dependencies...
July 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28660738/pseudolymphoma-in-a-cat-on-phenobarbital-treatment
#3
J Lieser, C S Schwedes
A two-year-old female spayed domestic shorthair cat was presented with apathy, inappetence and generalised lymphadenomegaly. Anamnestic data included a generalised seizure disorder and phenobarbital treatment started one month before presentation. Routine blood analysis revealed only mild abnormalities and FeLV and FIV tests were negative. Both popliteal lymph nodes were aspirated and cytology was consistent with reactive lymph node hyperplasia. PCR for antigen receptor rearrangement testing diagnosed a polyclonal cell population...
June 29, 2017: Journal of Small Animal Practice
https://www.readbyqxmd.com/read/28659065/prevalence-and-risk-factors-for-cats-testing-positive-for-feline-immunodeficiency-virus-and-feline-leukaemia-virus-infection-in-cats-entering-an-animal-shelter-in-new-zealand
#4
M C Gates, S Vigeant, A Dale
AIMS: To estimate the prevalence of cats testing positive for antibodies to feline immunodeficiency virus (FIV) and feline leukaemia virus (FeLV) antigens in domestic cats entering a New Zealand animal shelter, based on a commercial point-of-care ELISA, to identify risk factors associated with cats testing positive, and to compare the results obtained from the ELISA with those obtained using PCR-based testing. METHOD: A cross-sectional study was performed on 388 cats entering the Royal New Zealand Society for the Prevention of Cruelty to Animals (RNZSPCA) animal shelter in Auckland, New Zealand between 7 February 2014 and 30 May 2014...
June 28, 2017: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/28603011/a-comprehensive-spectroscopic-study-of-the-polymorphs-of-diflunisal-and-their-phase-transformations
#5
Anuradha R Pallipurath, Francesco Civati, Juraj Sibik, Clare Crowley, J Axel Zeitler, Patrick McArdle, Andrea Erxleben
Understanding phase transitions in pharmaceutical materials is of vital importance for drug manufacturing, processing and storage. In this paper we have carried out comprehensive high-resolution spectroscopic studies on the polymorphs of the non-steroidal anti-inflammatory drug diflunisal that has four known polymorphs, forms I-IV (FI-FIV), three of which have known crystal structures. Phase transformations during milling, heating, melt-quenching and exposure to high relative humidity were investigated using Raman and terahertz spectroscopy in combination with differential scanning calorimetry and X-ray powder diffraction...
June 8, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28588406/-formula-see-text-graded-discrete-lax-pairs-and-yang-baxter-maps
#6
Allan P Fordy, Pavlos Xenitidis
We recently introduced a class of [Formula: see text] graded discrete Lax pairs and studied the associated discrete integrable systems (lattice equations). In this paper, we introduce the corresponding Yang-Baxter maps. Many well-known examples belong to this scheme for N=2, so, for N≥3, our systems may be regarded as generalizations of these. In particular, for each N we introduce a class of multi-component Yang-Baxter maps, which include H(B)III (of Papageorgiou et al. 2010 SIGMA 6, 003 (9 p). (doi:10.3842/SIGMA...
May 2017: Proceedings. Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28560784/reversible-and-cachexia-associated-feline-skin-fragility-syndrome-in-three-cats
#7
Nicla Furiani, Ilaria Porcellato, Chiara Brachelente
BACKGROUND: Feline skin fragility syndrome (FSFS) is an acquired disorder characterized by altered collagen production resulting in an extremely thin and fragile skin. FSFS is associated with diseases characterized by excessive steroidal hormones that can inhibit collagen synthesis. It is also described concomitantly with severe inflammatory, infectious or neoplastic conditions where the pathogenesis remains largely unknown. OBJECTIVES: To describe three cases of FSFS in cats that become cachectic secondary to different causes without glucocorticoid involvement...
May 31, 2017: Veterinary Dermatology
https://www.readbyqxmd.com/read/28510253/feline-immunodeficiency-virus-and-feline-leukemia-virus-frequency-and-associated-factors-in-cats-in-northeastern-brazil
#8
L C Lacerda, A N Silva, J S Freitas, R D S Cruz, R A Said, A D Munhoz
Our aims were to determine the frequencies of feline immunodeficiency virus (FIV) and feline leukemia virus (FeLV) in owned and stray cats in the northeastern region of Brazil, ascertain the status of FeLV infection, and investigate potential associated factors among the owned cats. Blood samples from 200 asymptomatic owned cats and 30 stray cats were processed using nested PCR and commercial immunochromatographic tests to diagnose infections. To evaluate the factors associated with FIV and/or FeLV in owned cats, a semi-structured interview was conducted with each owner about the animal's environment, and these data were subjected to unconditional logistic regression...
May 10, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28491447/successful-treatment-of-multifocal-pedal-prototheca-wickerhamii-infection-in-a-feline-immunodeficiency-virus-positive-cat-with-multiple-bowenoid-in-situ-carcinomas-containing-papillomaviral-dna-sequences
#9
Allan E Kessell, Derek McNair, John S Munday, Richard Savory, Catriona Halliday, Richard Malik
CASE SUMMARY: A 16-year-old, castrated male, feline immunodeficiency virus (FIV)-positive, domestic shorthair cat developed multiple skin lesions. Most of these were Bowenoid carcinoma in situ and contained DNA sequences consistent with Felis catus papillomavirus type 2. Two additional lesions that developed in the skin and subcutaneous tissues between the digital and carpal pads on the left forelimb and right hindlimb were shown by cytology, histology and culture to be caused by Prototheca wickerhamii...
January 2017: JFMS open reports
https://www.readbyqxmd.com/read/28491433/evaluation-of-rapid-diagnostic-test-kits-for-feline-leukemia-virus-infection-using-samples-from-naturally-infected-cats
#10
Jiayou Liu, Thomas O'Connor, Melissa Beall, Ramaswamy Chandrashekar, Michael Lappin
OBJECTIVES: Feline leukemia virus (FeLV) is a potentially life-threatening oncogenic retrovirus. The p27 viral core protein is produced by the virus in infected feline cells, is found in the cytoplasm in several blood cells and can be free in the serum and plasma. ELISA or particle-based immunoassay are commonly used to detect the presence of the p27 core protein in samples obtained from blood. The objective of this study was to compare the performance of several in-clinic tests: the SNAP Feline Triple Test (IDEXX Laboratories), the WITNESS FeLV-FIV Test (Zoetis) and the VetScan Feline FeLV/FIV Rapid Test (Abaxis)...
July 2016: JFMS open reports
https://www.readbyqxmd.com/read/28475623/analysis-of-the-functional-compatibility-of-siv-capsid-sequences-in-the-context-of-the-fiv-gag-precursor
#11
César A Ovejero, José L Affranchino, Silvia A González
The formation of immature lentiviral particles is dependent on the multimerization of the Gag polyprotein at the plasma membrane of the infected cells. One key player in the virus assembly process is the capsid (CA) domain of Gag, which establishes the protein-protein interactions that give rise to the hexagonal lattice of Gag molecules in the immature virion. To gain a better understanding of the functional equivalence between the CA proteins of simian and feline immunodeficiency viruses (SIV and FIV, respectively), we generated a series of chimeric FIV Gag proteins in which the CA-coding region was partially or totally replaced by its SIV counterpart...
2017: PloS One
https://www.readbyqxmd.com/read/28384338/peripheral-and-central-immune-cell-reservoirs-in-tissues-from-asymptomatic-cats-chronically-infected-with-feline-immunodeficiency-virus
#12
C D Eckstrand, E E Sparger, K A Pitt, B G Murphy
Feline immunodeficiency virus (FIV) infection in cats results in life-long viral persistence and progressive immunopathology. We have previously described a cohort of experimentally infected cats demonstrating a progressive decline of peripheral blood CD4+ T-cell over six years in the face of apparent peripheral viral latency. More recently we reported findings from this same cohort that revealed popliteal lymph node tissue as sites for ongoing viral replication suggesting that tissue reservoirs are important in FIV immunopathogenesis during the late asymptomatic phase of infection...
2017: PloS One
https://www.readbyqxmd.com/read/28375041/prevalence-of-external-ear-disorders-in-belgian-stray-cats
#13
Anouck Bollez, Hilde de Rooster, Alessandra Furcas, Sophie Vandenabeele
Objectives Feline otitis externa is a multifactorial dermatological disorder about which very little is known. The objective of this study was to map the prevalence of external ear canal disorders and the pathogens causing otitis externa in stray cats roaming around the region of Ghent, Belgium. Methods One hundred and thirty stray cats were randomly selected during a local trap-neuter-return programme. All cats were European Shorthairs. This study included clinical, otoscopic and cytological evaluation of both external ears of each cat...
April 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28360895/genetic-diversity-of-brucella-reference-and-non-reference-phages-and-its-impact-on-brucella-typing
#14
Jens A Hammerl, Cornelia Göllner, Claudia Jäckel, Holger C Scholz, Karsten Nöckler, Jochen Reetz, Sascha Al Dahouk, Stefan Hertwig
Virulent phages have been used for many years to type Brucella isolates, but until recently knowledge about the genetic makeup of these phages remains limited. In this work the host specificity and genomic sequences of the original set (deposited in 1960) of VLA Brucella reference phages Tb, Fi, Wb, Bk2, R/C, and Iz were analyzed and compared with hitherto described brucellaphages. VLA phages turned out to be different from homonymous phages in other laboratories. The host range of the phages was defined by performing plaque assays with a wide selection of Brucella strains...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28358636/seroprevalence-of-heartworm-infection-risk-factors-for-seropositivity-and-frequency-of-prescribing-heartworm-preventives-for-cats-in-the-united-states-and-canada
#15
Julie K Levy, Amie N Burling, Michael M Crandall, Sylvia J Tucker, Erin G Wood, Jessie D Foster
OBJECTIVE To determine the seroprevalence of heartworm infection, risk factors for seropositivity, and frequency of prescribing heartworm preventives for cats. DESIGN Prospective cross-sectional study. ANIMALS 34,975 cats from 1,353 veterinary clinics (n = 26,707) and 125 animal shelters (8,268) in the United States and Canada. PROCEDURES Blood samples were collected from all cats and tested with a point-of-care ELISA for Dirofilaria immitis antigen, FeLV antigen, and FIV antibody. Results were compared among geographic regions and various cat groupings...
April 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28331087/feline-immunodeficiency-virus-evolutionarily-acquires-two-proteins-vif-and-protease-capable-of-antagonizing-feline-apobec3
#16
Rokusuke Yoshikawa, Junko S Takeuchi, Eri Yamada, Yusuke Nakano, Naoko Misawa, Yuichi Kimura, Fengrong Ren, Takayuki Miyazawa, Yoshio Koyanagi, Kei Sato
The interplay between viral and host proteins has been well studied to elucidate virus-host interactions and their relevance to virulence. Mammalian genes encode apolipoprotein B mRNA-editing enzyme catalytic polypeptide-like 3 (APOBEC3) proteins, which act as intrinsic restriction factors against lentiviruses. To overcome APOBEC3-mediated antiviral actions, lentiviruses have evolutionarily acquired an accessory protein, viral infectivity factor (Vif), and Vif degrades host APOBEC3 proteins via a ubiquitin/proteasome-dependent pathway...
June 1, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28285597/prevalence-study-and-risk-factor-analysis-of-selected-bacterial-protozoal-and-viral-including-vector-borne-pathogens-in-cats-from-cyprus
#17
Charalampos Attipa, Kostas Papasouliotis, Laia Solano-Gallego, Gad Baneth, Yaarit Nachum-Biala, Elpida Sarvani, Toby G Knowles, Sena Mengi, David Morris, Chris Helps, Séverine Tasker
BACKGROUND: Feline infectious agent studies are lacking in Cyprus. The aims of this study were to determine the prevalence and risk factors for various feline infectious agents, including feline vector-borne pathogens (FVBP), in cats from Cyprus. METHODS: A cross-sectional, descriptive, multicentre study was performed on 174 feline samples [138 owned and 36 shelter-feral, including both healthy (43) and non-healthy (131), cats] from private veterinary clinics from all six districts of Cyprus...
March 13, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28285590/molecular-detection-of-hepatozoon-spp-and-cytauxzoon-sp-in-domestic-and-stray-cats-from-madrid-spain
#18
David Díaz-Regañón, Alejandra Villaescusa, Tania Ayllón, Fernando Rodríguez-Franco, Gad Baneth, Lydia Calleja-Bueno, Mercedes García-Sancho, Beatriz Agulla, Ángel Sainz
BACKGROUND: Different species of apicomplexan protozoans of the genera Hepatozoon and Cytauxzoon can infect domestic cats, but their epidemiology and clinical relevance are not fully understood. The aim of this study was to assess the molecular prevalence of Hepatozoon spp. and Cytauxzoon spp. and to identify associated risk factors and clinical and laboratory abnormalities in a population of cats from Madrid, Spain. METHODS: Six hundred and forty-four client-owned and stray cats from Madrid, Spain, were included in this study...
March 13, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28285588/prevalence-and-molecular-characterization-of-canine-and-feline-hemotropic-mycoplasmas-hemoplasmas-in-northern-italy
#19
Silvia Ravagnan, Erika Carli, Eleonora Piseddu, Graziana Da Rold, Elena Porcellato, Claudia Zanardello, Antonio Carminato, Marta Vascellari, Gioia Capelli
BACKGROUND: Hemotropic mycoplasmas (hemoplasmas), the agents of infectious anemia, have been reported in dogs and cats. Little data are available on hemoplasma infections in Italy. The aim of this study was to evaluate the species of hemoplasmas and their prevalence in dogs and cats of northern Italy. METHODS: Blood samples were obtained from 117 candidate blood donor dogs, 278 free-roaming dogs and 227 free-roaming cats in 2014 and 2015. Samples were first screened for hemoplasmas with a SYBR green real time PCR...
March 13, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28202016/risk-factors-of-different-hemoplasma-species-infections-in-cats
#20
Michèle Bergmann, Theresa Englert, Bianca Stuetzer, Jennifer R Hawley, Michael R Lappin, Katrin Hartmann
BACKGROUND: Hemoplasma species (spp.) commonly cause infections in cats worldwide. However, data on risk factors for infections are limited. The aim of this study was to determine the prevalence of hemoplasma spp. infections in cats in Southern Germany and to assess risk factors associated with infection. RESULTS: DNA was extracted from blood samples of 479 cats presented to different veterinary hospitals for various reasons. DNA of feline hemoplasmas was amplified by use of a previously reported PCR assay...
February 16, 2017: BMC Veterinary Research
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