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https://www.readbyqxmd.com/read/28207298/hepatozoon-spp-infects-free-ranging-jaguars-panthera-onca-in-brazil
#1
Mariana Malzoni Furtado, Betina Metzger, Anah Tereza Almeida Jácomo, Marcelo Bahia Labruna, Thiago Fernandes Martins, Lucia Helena O'Dwyer, Karinados Santos Paduan, Grasiela Edith Oliveira Porfírio, Leandro Silveira, Rahel Sollmann, Sueli Akemi Taniwaki, Natália Mundim Tôrres, JoséSoares Ferreira Neto
This study investigated the presence of Hepatozoon spp. in jaguars (Panthera onca) and domestic animals in the Cerrado, Amazon and Pantanal biomes of Brazil. Between February 2000 and January 2010, blood samples were collected from 30 jaguars, 129 domestic dogs (Canis lupus familiaris) and 22 domestic cats (Felis catus) for molecular tests. All of the jaguars from the Pantanal (n=22) and Cerrado (n=4) and 3 of 4 jaguars from the Amazon were positive for Hepatozoon spp. Domestic dogs (62.8%) and cats (31.8%) were also positive for the agent...
February 16, 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28201999/effect-of-myeloid-differentiation-primary-response-gene-88-on-expression-profiles-of-genes-during-the-development-and-progression-of-helicobacter-induced-gastric-cancer
#2
Ivonne Lozano-Pope, Arnika Sharma, Michael Matthias, Kelly S Doran, Marygorret Obonyo
BACKGROUND: Gastric cancer is one of the most common and lethal type of cancer worldwide. Infection with Helicobacter pylori (H. pylori) is recognized as the major cause of gastric cancer. However, it remains unclear the mechanism by which Helicobacter infection leads to gastric cancer. Furthermore, the underlying molecular events involved during the progression of Helicobacter infection to gastric malignancy are not well understood. In previous studies, we demonstrated that that H. felis-infected Myd88 (-/-) mice exhibited dramatic pathology and an accelerated progression to gastric dysplasia; however, the MyD88 downstream gene targets responsible for this pathology have not been described...
February 15, 2017: BMC Cancer
https://www.readbyqxmd.com/read/28196774/is-the-free-ranging-jaguar-panthera-onca-a-reservoir-for-cytauxzoon-felis-in-brazil
#3
Mariana Malzoni Furtado, Sueli Akemi Taniwaki, Betina Metzger, Karina Dos Santos Paduan, Helena Lucia O'Dwyer, Anah Tereza de Almeida Jácomo, Grasiela E O Porfírio, Leandro Silveira, Rahel Sollmann, Natália Mundim Tôrres, José Soares Ferreira Neto
This study investigated the occurrence of Cytauxzoon felis and Babesia spp. in free-ranging jaguars (Panthera onca), domestic dogs (Canis lupus familiaris) and domestic cats (Felis catus) from the Cerrado, Amazon and Pantanal biomes of Brazil. Blood samples were collected from 30 jaguars, 129 dogs and 22 cats for detection of the 18S rRNA genes of piroplasmids. All of the jaguars from the Pantanal (n=22) and Cerrado (n=4) and three of four jaguars from the Amazon were positive for C. felis, but no dogs or cats were positive for the agent...
February 6, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/28186361/habitat-as-a-mediator-of-mesopredator-driven-mammal-extinction
#4
Peter J McDonald, Catherine E M Nano, Simon J Ward, Alistair Stewart, Chris R Pavey, Gary W Luck, Chris R Dickman
A prevailing view in dryland systems is that mammals are constrained by the scarcity of fertile soils and primary productivity. An alternative view is that predation is a primary driver of mammal assemblages, especially in Australia, where two introduced mesopredators - the feral cat Felis catus and red fox Vulpes vulpes - have decimated the dryland mammal fauna. We evaluate productivity (bottom-up) versus predation (top-down) as drivers of native mammal assemblage structure in dryland Australia. We find that predation is likely a major driver of extant mammal richness, but that its effect is strongly mediated by habitat type...
February 10, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
https://www.readbyqxmd.com/read/28165317/a-systematic-review-and-meta-analysis-of-the-association-between-mycoplasma-spp-and-upper-and-lower-respiratory-tract-disease-in-cats
#5
Kevin Le Boedec
OBJECTIVE To critically assess available data from controlled observational studies on the pathogenic role of Mycoplasma spp in the upper respiratory tract (URT) and lower respiratory tract (LRT) of cats. DESIGN Systematic review and meta-analysis. SAMPLE 12 studies. PROCEDURES Seven electronic databases were searched for relevant publications. Risk of bias was assessed via the Newcastle-Ottawa Scale. Meta-analyses, stratified by URT versus LRT disease, were performed to estimate pooled ORs and 95% confidence intervals (CIs) for the association between Mycoplasma isolation and URT or LRT disease...
February 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28160310/acute-phase-proteins-response-in-cats-naturally-infected-with-hepatozoon-felis-and-babesia-vogeli
#6
Hugo Vilhena, Asta Tvarijonaviciute, José J Cerón, Lisete Vieira, Josep Pastor, Ana C Silvestre-Ferreira
BACKGROUND: The measurement of acute phase proteins (APP) is being increasingly used in human and veterinary medicine in diagnosis, prognosis, treatment monitoring, and in general health screening. However, information about the APP response in cats infected with agents of vector-borne diseases is lacking. OBJECTIVES: The purpose of the study was to investigate the concentrations of serum amyloid A (SAA), haptoglobin (Hp), and paraoxonase-1 (PON1) in cats naturally infected with Hepatozoon felis and Babesia vogeli...
February 3, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28151409/helicobacter-pylori-induced-gastric-pathology-insights-from-in-vivo-and-ex-vivo-models
#7
REVIEW
Michael D Burkitt, Carrie A Duckworth, Jonathan M Williams, D Mark Pritchard
Gastric colonization with Helicobacter pylori induces diverse human pathological conditions, including superficial gastritis, peptic ulcer disease, mucosa-associated lymphoid tissue (MALT) lymphoma, and gastric adenocarcinoma and its precursors. The treatment of these conditions often relies on the eradication of H. pylori, an intervention that is increasingly difficult to achieve and that does not prevent disease progression in some contexts. There is, therefore, a pressing need to develop new experimental models of H...
February 1, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28151047/minimum-transmission-time-of-cytauxzoon-felis-by-amblyomma-americanum-to-domestic-cats-in-relation-to-duration-of-infestation-and-investigation-of-ingestion-of-infected-ticks-as-a-potential-route-of-transmission
#8
Jennifer E Thomas, Cameon M Ohmes, Mark E Payton, Joseph A Hostetler, Mason V Reichard
Objectives The objectives of the present study were to determine the duration of infestation by Amblyomma americanum necessary for transmission of Cytauxzoon felis to domestic cats and to determine if ingestion of C felis-infected A americanum by cats is a route of transmission. Methods Forty-nine cats were assigned to one of seven groups, with seven cats per group. Cats were infested with A americanum adults, acquisition fed as nymphs on a cytauxzoonosis survivor cat, for 12 h (group 1), 18 h (group 2), 24 h (group 3), 36 h (group 4), 48 h (group 5) and to repletion (group 7; control)...
February 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28149490/occurrence-of-chlamydophila-felis-feline-herpesvirus-1-and-calcivirus-in-domestic-cats-of-iran
#9
Nadi Maazi, Shahram Jamshidi, Payman Kayhani, Hassan Momtaz
BACKGROUND AND OBJECTIVES: Feline herpesvirus-1, feline calicivirus and Chlamydophila felis are the main causes of feline upper respiratory tract disease. This study was conducted to identify of FeHV-1, FCV and C. felis infections in domestic cat population and also to estimate the prevalence of each specific infection in Iran. MATERIALS AND METHODS: The ocular conjunctiva and oropharyngeal specimens obtained from 80 cats were examined using PCR and reverse transcription PCR...
October 2016: Iranian Journal of Microbiology
https://www.readbyqxmd.com/read/28131552/comparative-analysis-of-the-feline-immunoglobulin-repertoire
#10
Sebastian C J Steiniger, Jacob Glanville, Douglas W Harris, Thomas L Wilson, Gregory C Ippolito, Steven A Dunham
Next-Generation Sequencing combined with bioinformatics is a powerful tool for analyzing the large number of DNA sequences present in the expressed antibody repertoire and these data sets can be used to advance a number of research areas including antibody discovery and engineering. The accurate measurement of the immune repertoire sequence composition, diversity and abundance is important for understanding the repertoire response in infections, vaccinations and cancer immunology and could also be useful for elucidating novel molecular targets...
January 25, 2017: Biologicals: Journal of the International Association of Biological Standardization
https://www.readbyqxmd.com/read/28122583/abundance-zoonotic-potential-and-risk-factors-of-intestinal-parasitism-amongst-dog-and-cat-populations-the-scenario-of-crete-greece
#11
Despoina Kostopoulou, Edwin Claerebout, Dimitrios Arvanitis, Panagiota Ligda, Nikolaos Voutzourakis, Stijn Casaert, Smaragda Sotiraki
BACKGROUND: The objectives of this study were to evaluate the prevalence and infection intensity of intestinal parasites in different dog and cat populations in Crete, Greece, estimate the zoonotic risk and identify risk factors. METHODS: Faecal samples from shelter, household and shepherd dogs and shelter and household cats were analyzed using sedimentation/flotation techniques. Giardia and Cryptosporidium were detected by a quantitative direct immunofluorescence assay (IFA)...
January 25, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28115672/rickettsia-felis-infection-in-febrile-children-ghana
#12
Peter Sothmann, Christian Keller, Ralf Krumkamp, Benno Kreuels, Cassandra Aldrich, Nimako Sarpong, Stefanie Steierberg, Doris Winter, Kennedy Gyau Boahen, Ellis Owusu-Dabo, Jürgen May, Daniel Eibach
Rickettsial infections are an underrecognized cause of febrile illness in sub-Saharan Africa. To evaluate the epidemiology and clinical features of rickettsial disease in pediatric patients in Ghana, we screened blood samples from febrile children aged less than 15 years presenting to an outpatient department in Ghana's Ashanti Region for the presence of rickettsial DNA. We detected Rickettsia felis in 7/470 (1.5%) blood samples, using two independent real-time polymerase chain reactions. No other Rickettsia species were found...
January 23, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28115180/occurrence-and-clinical-significance-of-aelurostrongylus-abstrusus-and-other-endoparasites-in-danish-cats
#13
Alice P Hansen, Line K Skarbye, Lene M Vinther, Jakob L Willesen, Christian B Pipper, Caroline S Olsen, Helena Mejer
Feline endoparasites are highly prevalent worldwide and may cause a variety of clinical signs in infected cats. Prevalence rates are dynamic and there is limited knowledge of the current prevalence in Denmark and the clinical manifestation and significance of especially the lungworm Aelurostrongylus abstrusus. This study investigated the total and local prevalence of Aelurostrongylus abstrusus and other endoparasites in Danish cats. The clinical significance of feline aelurostrongylosis was also examined through identification of frequency and severity of selected clinical signs...
January 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28115179/cat-fleas-ctenocephalides-felis-from-cats-and-dogs-in-new-zealand-molecular-characterisation-presence-of-rickettsia-felis-and-bartonella-clarridgeiae-and-comparison-with-australia
#14
COMPARATIVE STUDY
Shona Chandra, Maureen Forsyth, Andrea L Lawrence, David Emery, Jan Šlapeta
The cat flea (Ctenocephalides felis) is the most common flea species parasitising both domestic cats and dogs globally. Fleas are known vectors of zoonotic pathogens such as vector borne Rickettsia and Bartonella. This study compared cat fleas from domestic cats and dogs in New Zealand's North and South Islands to Australian cat fleas, using the mitochondrial DNA (mtDNA) marker, cytochrome c oxidase subunit I and II (cox1, cox2). We assessed the prevalence of Rickettsia and Bartonella using genus specific multiplexed real-time PCR assays...
January 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28108174/experimental-infection-of-octopus-vulgaris-cuvier-1797-with-photobacterium-damsela-subsp-piscicida-immunohistochemical-tracking-of-antigen-and-tissue-responses
#15
Vasileios Bakopoulos, Daniella White, Michail-Aggelos Valsamidis, Feli Vasilaki
Adult common octopus individuals were intramuscularly infected with Photobacterium damsela subsp. piscicida in order to investigate if this species is sensitive to this common and important fish pathogen. The fate of the bacterial antigens and the tissue responses of Octopus vulgaris were studied employing immunohistochemical techniques. Strong reaction at the site of injection was evident from day 2 post-infection that continued until day 14. Great numbers of hemocytes that were attracted at the site of infection were involved in phagocytosis of bacteria...
January 17, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28073394/gregarine-infection-accelerates-larval-development-of-the-cat-flea-ctenocephalides-felis-bouch%C3%A3
#16
M E Alarcón, A Jara-F, R C Briones, A K Dubey, C H Slamovits
A high degree of specialization between host and parasite is a well-known outcome of a long history of coevolution, and it is strikingly illustrated in a coordination of their life cycles. In some cases, the arms race ensued at the establishment of a symbiotic relationship results in the adoption of manipulative strategies by the parasite. We have already learned that Steinina ctenocephali, a gregarine living in the alimentary canal of cat flea, Ctenocephalides felis follows its phenology and metamorphosis...
January 11, 2017: Parasitology
https://www.readbyqxmd.com/read/28068378/mesopredator-management-effects-of-red-fox-control-on-the-abundance-diet-and-use-of-space-by-feral-cats
#17
Robyn Molsher, Alan E Newsome, Thomas M Newsome, Christopher R Dickman
Apex predators are subject to lethal control in many parts of the world to minimize their impacts on human industries and livelihoods. Diverse communities of smaller predators-mesopredators-often remain after apex predator removal. Despite concern that these mesopredators may be 'released' in the absence of the apex predator and exert negative effects on each other and on co-occurring prey, these interactions have been little studied. Here, we investigate the potential effects of competition and intraguild predation between red foxes (Vulpes vulpes) and feral cats (Felis catus) in south-eastern Australia where the apex predator, the dingo (Canis dingo), has been extirpated by humans...
2017: PloS One
https://www.readbyqxmd.com/read/28068343/the-fleas-siphonaptera-in-iran-diversity-host-range-and-medical-importance
#18
Naseh Maleki-Ravasan, Samaneh Solhjouy-Fard, Jean-Claude Beaucournu, Anne Laudisoit, Ehsan Mostafavi
BACKGROUND: Flea-borne diseases have a wide distribution in the world. Studies on the identity, abundance, distribution and seasonality of the potential vectors of pathogenic agents (e.g. Yersinia pestis, Francisella tularensis, and Rickettsia felis) are necessary tools for controlling and preventing such diseases outbreaks. The improvements of diagnostic tools are partly responsible for an easier detection of otherwise unnoticed agents in the ectoparasitic fauna and as such a good taxonomical knowledge of the potential vectors is crucial...
January 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28043384/initial-evaluations-of-the-effectiveness-of-spinetoram-as-a-long-acting-oral-systemic-pulicide-for-controlling-cat-flea-ctenocephalides-felis-infestations-on-dogs
#19
RANDOMIZED CONTROLLED TRIAL
W Hunter White, Kari L Riggs, Michelle L Totten, Daniel E Snyder, Christine M McCoy, David R Young
Spinetoram is a semi-synthetic, spinosyn class natural product derived from fermentation by the actinomycete, Saccharopolyspora spinosa. Based on LD50 (50% lethal dose) values against adult cat fleas (Ctenocephalides felis) using an in vitro contact assay, spinetoram was approximately 4-fold more potent than spinosad. Subsequently, two parallel-arm, randomized block design laboratory studies were conducted to evaluate the effectiveness of orally administered spinetoram against experimental C. felis infestations on dogs, when administered as a single dose or multiple doses over a 6-12h interval...
January 15, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28043379/use-of-a-commercial-serologic-test-for-angiostrongylus-vasorum-for-the-detection-of-a-chabaudi-in-wildcats-and-a-daskalovi-in-badgers
#20
Georgiana Deak, Călin Mircea Gherman, Angela Monica Ionică, Aikaterini Alexandra Daskalaki, Ioana Adriana Matei, Gianluca D'Amico, Cristian Domşa, Nikola Pantchev, Andrei Daniel Mihalca, Vasile Cozma
Three species of the genus Angiostrongylus are known to infect European carnivores: A. vasorum (mainly in canids but also in other carnivores), A. chabaudi (in felids) and A. daskalovi (in mustelids). A. vasorum is responsible for clinically severe disease in domestic dogs, most commonly diagnosed based on fecal examination and serological detection of circulating antigens. Considering the poorly known host range and the challenging larval differentiation in the feces between the three species of Angiostrongylus infecting European carnivores, our aim was to evaluate the cross-reactivity of A...
January 15, 2017: Veterinary Parasitology
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