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https://www.readbyqxmd.com/read/28987024/urban-landscapes-can-change-virus-gene-flow-and-evolution-in-a-fragmentation-sensitive-carnivore
#1
Nicholas M Fountain-Jones, Meggan E Craft, W Chris Funk, Chris Kozakiewicz, Daryl Trumbo, Erin E Boydston, Lisa M Lyren, Kevin Crooks, Justin S Lee, Sue VandeWoude, Scott Carver
Urban expansion has widespread impacts on wildlife species globally, including the transmission and emergence of infectious diseases. However, there is almost no information about how urban landscapes shape transmission dynamics in wildlife. Using an innovative phylodynamic approach combining host and pathogen molecular data with landscape characteristics and host traits, we untangle the complex factors that drive transmission networks of Feline Immunodeficiency Virus (FIV) in bobcats (Lynx rufus). We found that the urban landscape played a significant role in shaping FIV transmission...
October 7, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28963205/first-nearly-complete-genome-sequence-of-feline-immunodeficiency-virus-from-brazil
#2
Sueli A Taniwaki, João P Araújo, Paulo E Brandão
Feline immunodeficiency virus (FIV) has worldwide distribution; nevertheless, only a few FIV genomes from domestic cats are available. This is the first report of a nearly complete genome of FIV from a Brazilian cat (8,967 nucleotides [nt]), including the entire coding region and the 3' untranslated region.
September 28, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28934316/pathogenesis-of-oral-fiv-infection
#3
Craig Miller, Karen Boegler, Scott Carver, Martha MacMillan, Helle Bielefeldt-Ohmann, Sue VandeWoude
Feline immunodeficiency virus (FIV) is the feline analogue of human immunodeficiency virus (HIV) and features many hallmarks of HIV infection and pathogenesis, including the development of concurrent oral lesions. While HIV is typically transmitted via parenteral transmucosal contact, recent studies prove that oral transmission can occur, and that saliva from infected individuals contains significant amounts of HIV RNA and DNA. While it is accepted that FIV is primarily transmitted by biting, few studies have evaluated FIV oral infection kinetics and transmission mechanisms over the last 20 years...
2017: PloS One
https://www.readbyqxmd.com/read/28919546/phylodynamics-of-the-brazilian-feline-immunodeficiency-virus
#4
Lucía Cano-Ortiz, Dennis Maletich Junqueira, Juliana Comerlato, Cristina Santos Costa, André Zani, Naila Blatt Duda, Caroline Tochetto, Raissa Nunes Dos Santos, Fernanda Vieira Amorim da Costa, Paulo Michel Roehe, Ana Cláudia Franco
Feline immunodeficiency virus (FIV), like other retroviruses, displays large genomic divergence when different isolates are compared. In this study, 31 FIV positive samples of domestic cats from Porto Alegre, RS, Brazil were used aiming at a detailed genomic characterization and a better understanding of the molecular epidemiology of the virus in Brazil. The proviral env genes were partially amplified, sequenced and compared with another 237 sequences from different continents. We identified several Brazilian highly supported clades (A, B1, B2, C and D) that suggest independent events of introduction of FIV in Brazil...
September 13, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28918382/prevalence-of-and-risk-factors-for-fiv-and-felv-infection-in-two-shelters-in-the-united-kingdom-2011-2012
#5
Jenny Stavisky, Rachel Sarah Dean, Michael Henry Molloy
The aims of this study were to determine the prevalence of feline leukaemia virus (FeLV) and feline immunodeficiency virus (FIV) infections in cats presented to two RSPCA (Royal Society for the Prevention of Cruelty to Animals) animal rehoming centres and to identify risk factors for infection. All cats presented at each centre between August 2011 and August 2012 were subjected to a patient-side test for FeLV/FIV on entry. Kittens under three months and cats euthanased within a short time of presentation were excluded from the study...
September 16, 2017: Veterinary Record
https://www.readbyqxmd.com/read/28915995/detection-and-molecular-characterization-of-feline-hemoplasmas-in-wild-felid-species-in-iran-in-the-middle-east
#6
Fereshteh Ghazisaeedi, Nahid Atyabi, Taghi Zahraei Salehi, Saeid Tabatabaei, Iraj Ashrafi Tamai, Iman Memarian, Séverine Tasker
Three feline hemoplasma species exist in felids: Mycoplasma haemofelis, 'Candidatus Mycoplasma haemominutum', and 'Candidatus Mycoplasma turicensis'. The aims of the study were to determine the presence of, and molecularly characterize, any hemoplasmas in wild felids, including the endangered Persian leopard in Iran, the Middle East. Blood samples were collected from 19 wild felids, including three Persian leopards. Using species-specific hemoplasma PCRs and ELISA serological testing for feline leukaemia virus and feline immunodeficiency virus (FIV), two Persian leopards were found to be infected with 'Ca...
October 2017: Comparative Immunology, Microbiology and Infectious Diseases
https://www.readbyqxmd.com/read/28905885/long-term-correction-of-hemophilia-a-mice-following-lentiviral-mediated-delivery-of-an-optimized-canine-factor-viii-gene
#7
J M Staber, M J Pollpeter, C-G Anderson, M Burrascano, A L Cooney, P L Sinn, D T Rutkowski, W C Raschke, P B McCray
Current therapies for hemophilia A include frequent prophylactic or on-demand intravenous factor treatments which are costly, inconvenient and may lead to inhibitor formation. Viral vector delivery of factor VIII (FVIII) cDNA has the potential to alleviate the debilitating clotting defects. Lentiviral-based vectors delivered to murine models of hemophilia A mediate phenotypic correction. However, a limitation of lentiviral-mediated FVIII delivery is inefficient transduction of target cells. Here, we engineer a feline immunodeficiency virus (FIV) -based lentiviral vector pseudotyped with the baculovirus GP64 envelope glycoprotein to mediate efficient gene transfer to mouse hepatocytes...
September 14, 2017: Gene Therapy
https://www.readbyqxmd.com/read/28873590/in-silico-analysis-and-molecular-docking-study-of-angiotensin-i-converting-enzyme-inhibitory-peptides-from-smooth-hound-viscera-protein-hydrolysates-fractionated-by-ultrafiltration
#8
Ola Abdelhedi, Rim Nasri, Letica Mora, Mourad Jridi, Fidel Toldrá, Moncef Nasri
Smooth-hound viscera hydrolysates (SHVHs) were prepared by treatment with Neutrase (SHVH-N) and Purafect (SHVH-P). Hydrolysates were then separated according to their molecular weight, using the ultra-filtration membrane system, into 5 fractions (≥50, 50-5, 5-3, 3-1 and ≤1kDa). Fractions showed different amino acid compositions and angiotensin I-converting enzyme (ACE) inhibitory potentials. The SHVH-P-FV (≤1kDa) and SHVH-N-FIV (3-1kDa) fractions showed the best ACE-inhibitory activities with IC50 values of 53...
January 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28840782/comparison-of-three-blood-transfusion-guidelines-applied-to-31-feline-donors-to-minimise-the-risk-of-transfusion-transmissible-infections
#9
Maria Luisa Marenzoni, Stefania Lauzi, Arianna Miglio, Mauro Coletti, Andrea Arbia, Saverio Paltrinieri, Maria Teresa Antognoni
Objectives The increased demand for animal blood transfusions creates the need for an adequate number of donors. At the same time, a high level of blood safety must be guaranteed and different guidelines (GLs) deal with this topic. The aim of this study was to evaluate the appropriateness of different GLs in preventing transfusion-transmissible infections (TTI) in Italian feline blood donors. Methods Blood samples were collected from 31 cats enrolled as blood donors by the owners' voluntary choice over a period of approximately 1 year...
August 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28828244/freeze-thaw-decellularization-of-the-trabecular-meshwork-in-an-ex-vivo-eye-perfusion-model
#10
Yalong Dang, Susannah Waxman, Chao Wang, Adrianna Jensen, Ralitsa T Loewen, Richard A Bilonick, Nils A Loewen
OBJECTIVE: The trabecular meshwork (TM) is the primary substrate of outflow resistance in glaucomatous eyes. Repopulating diseased TM with fresh, functional TM cells might be a viable therapeutic approach. Decellularized TM scaffolds have previously been produced by ablating cells with suicide gene therapy or saponin, which risks incomplete cell removal or dissolution of the extracellular matrix, respectively. We hypothesized that improved trabecular meshwork cell ablation would result from freeze-thaw cycles compared to chemical treatment...
2017: PeerJ
https://www.readbyqxmd.com/read/28780918/molecular-survey-of-bartonella-henselae-and-bartonella-clarridgeiae-in-pet-cats-across-japan-by-species-specific-nested-pcr
#11
S Sato, H Kabeya, A Negishi, H Tsujimoto, K Nishigaki, Y Endo, S Maruyama
Cats are known to be the main reservoir for Bartonella henselae and Bartonella clarridgeiae, which are the agents of 'cat-scratch disease' in humans. In the present study, we investigated the prevalence of the two Bartonella species on 1754 cat bloods collected from all prefectures in Japan during 2007-2008 by a nested-polymerase chain reaction (PCR) targeting the 16S-23S rRNA internal transcribed spacer region. Overall, Bartonella DNA was detected in 4·6% (80/1754) of the cats examined. The nested-PCR showed that 48·8% (39/80) of the positive cats were infected with B...
October 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28749325/central-and-peripheral-reservoirs-of-feline-immunodeficiency-virus-in-cats-a-review
#12
REVIEW
Chrissy D Eckstrand, Ellen E Sparger, Brian G Murphy
Infection with feline immunodeficiency virus (FIV), a lentivirus similar to human immunodeficiency virus (HIV), results in lifelong viral persistence and progressive immunopathology in the cat. FIV has the ability to infect and produce infectious virus in a number of different cell types. FIV provirus can also be maintained in a replication-competent but transcriptionally quiescent state, facilitating viral persistence over time. Immediately after the initial infection, FIV infection quickly disseminates to many anatomical compartments within the host including lymphoid organs, gastrointestinal tract and brain...
August 2017: Journal of General Virology
https://www.readbyqxmd.com/read/28677421/molecular-detection-of-viral-agents-in-free-ranging-and-captive-neotropical-felids-in-brazil
#13
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
#14
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
#15
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
#16
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 animal shelter in Auckland, New Zealand between 7 February 2014 and 30 May 2014...
July 24, 2017: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/28603011/a-comprehensive-spectroscopic-study-of-the-polymorphs-of-diflunisal-and-their-phase-transformations
#17
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...
August 7, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28588406/-formula-see-text-graded-discrete-lax-pairs-and-yang-baxter-maps
#18
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
#19
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
#20
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
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