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Cienfuegos Alayo, Jhoselin Mariset - One of the best experts on this subject based on the ideXlab platform.
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Presencia de Malassezia pachydermatis en Canis familiaris diagnosticados clínicamente con otitis externa en el distrito de Nuevo Chimbote, región Ancash - Perú 2016
Universidad Privada Antenor Orrego - UPAO, 2017Co-Authors: Cienfuegos Alayo, Jhoselin MarisetAbstract:La otitis canina externa es una inflamación del conducto auditivo externo, que se caracteriza por eritema, aumento de la descarga o descamación del epitelio, acompañado de dolor y/o irritación; entre uno de los agentes responsables de esta afección se tiene a Malassezia pachydermatis. El presente trabajo de estudio, se realizó para determinar la presencia de Malassezia pachydermatis en Canis familiaris, diagnosticados clínicamente con otitis externa, en el distrito de Nuevo Chimbote, región Ancash - Perú - 2016. Se utilizaron 53 Canis familiraris, como material biológico, los cuales fueron de diferente raza, edad, sexo. Se empleó como medio de diagnóstico, la citología por extendido directo, demostrándose la presencia de la levadura en un 74% (N=39/53) en Canis familiaris con otitis externa y en un 26% (N=14/53) de otitis canina externa debido a otras causas.External canine otitis is an inflammation of the external auditory canal, characterized by erythema, increased discharge or scaling of the epithelium, accompanied by pain and / or irritation; One of the agents responsible for this condition has Malassezia pachydermatis. The present study was carried out to determine the presence of Malassezia pachydermatis in Canis familiaris, clinically diagnosed with otitis externa, in the district of Nuevo Chimbote, Ancash region - Peru - 2016. We used 53 Canis familiraris, as biological material, which Were of different race, age, sex. Direct cytology was used as a diagnostic medium, with the presence of yeast in 74% (N = 39/53) in Canis familiaris with external otitis and 26% (N = 14/53) of otitis Canine due to other causes.Tesi
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Presencia de malassezia pachydermatis en canis familiaris diagnosticados clinicamente con otitis externa en el distrito de nuevo chimbote, región ancash - peru 2016
'Universidad Privada Antenor Orrego', 2017Co-Authors: Cienfuegos Alayo, Jhoselin MarisetAbstract:External canine otitis is an inflammation of the external auditory canal, characterized by erythema, increased discharge or scaling of the epithelium, accompanied by pain and / or irritation; One of the agents responsible for this condition has Malassezia pachydermatis. The present study was carried out to determine the presence of Malassezia pachydermatis in Canis familiaris, clinically diagnosed with otitis externa, in the district of Nuevo Chimbote, Ancash region - Peru - 2016. We used 53 Canis familiraris, as biological material, which Were of different race, age, sex. Direct cytology was used as a diagnostic medium, with the presence of yeast in 74% (N = 39/53) in Canis familiaris with external otitis and 26% (N = 14/53) of otitis Canine due to other causes.La otitis canina externa es una inflamación del conducto auditivo externo, que se caracteriza por eritema, aumento de la descarga o descamación del epitelio, acompañado de dolor y/o irritación; entre uno de los agentes responsables de esta afección se tiene a Malassezia pachydermatis. El presente trabajo de estudio, se realizó para determinar la presencia de Malassezia pachydermatis en Canis familiaris, diagnosticados clínicamente con otitis externa, en el distrito de Nuevo Chimbote, región Ancash - Perú - 2016. Se utilizaron 53 Canis familiraris, como material biológico, los cuales fueron de diferente raza, edad, sexo. Se empleó como medio de diagnóstico, la citología por extendido directo, demostrándose la presencia de la levadura en un 74% (N=39/53) en Canis familiaris con otitis externa y en un 26% (N=14/53) de otitis canina externa debido a otras causas
Marek Switonski - One of the best experts on this subject based on the ideXlab platform.
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microsatellite polymorphism and genetic distances between the dog red fox and arctic fox
Journal of Animal Breeding and Genetics, 2003Co-Authors: J Klukowska, T Strabel, M Mackowski, Marek SwitonskiAbstract:Summary This study compared polymorphism of nine canine-derived microsatellites (MS) (CPH1, CPH3, CPH6, CPH11, 2004, 2010, 2140, 2168 and 2319) in three species of the family Canidae. The DNA samples of 151 dogs, 53 arctic foxes and 91 red foxes were examined. The canine-derived primers did not amplify two MS (CPH1 and CPH11) in genome samples of the arctic fox. The most polymorphic MS in the studied species was the one named 2319. For majority of the loci mean allele size was higher in the dog than in two fox species. The genetic distances between the species were estimated using three formulas: DS, Da and (σμ)2. The estimated distances between both fox species were the smallest, while those between the dog and the arctic fox were the largest.
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canine derived cosmid probes containing microsatellites can be used in physical mapping of arctic fox alopex lagopus and chinese raccoon dog nyctereutes procyonoides procyonoides genomes
Journal of Heredity, 2003Co-Authors: N Rogalskaniznik, Izabela Szczerbal, Gaudenz Dolf, Jürg Schläpfer, Claude Schelling, Marek SwitonskiAbstract:Rapid development of the canine marker genome map facilitates genome mapping of other Canidae species. In this study we present chromosomal localization of 18 canine-derived cosmid probes containing microsatellites in the arctic fox (Alopex lagopus) and Chinese raccoon dog (Nyctereutes procyonoides procyonoides) genomes by the use of fluorescence in situ hybridization (FISH). The chromosome localizations in the arctic fox are in general agreement with data obtained from comparative genome maps of the dog and the fox. However, our studies showed that the order of the loci on some chromosomes was changed during karyotype evolution. Therefore, we suggest that small intrachromosomal rearrangements took place.
George Lyras - One of the best experts on this subject based on the ideXlab platform.
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The evolution of the brain in Canidae (Mammalia: Carnivora)
2016Co-Authors: George LyrasAbstract:Canid brain evolution followed three independent, yet convergent paths. Each of the three canid sub-families (Hesperocyoninae, Borophaginae and Caninae) started with a simple brain, which gradually became more complicated as the cerebral cortex became larger and more fi ssured, the cerebellar hemi-spheres became larger and the vermis more twisted. The extent to which these evolutionary changes took place diff ers between the three canid subfamilies. Caninae, the living group, has the most ad-vanced external brain anatomy. This is related to the general tendency of the carnivore brain to become more convoluted through geological time. A parallel development of similar sulcal patt erns took place in independent lineages within the Canidae. As a result, some sulci appeared independently several times during canid evolution. The cruciate sulcus appeared four times; the Sylvian, endolateral, ectola-teral and ectosylvian sulci appeared three times. The skulls of species with short rostra have a more posteriorly placed posterior border of the palate than those of their close relatives with long rostra. This arrangement aff ects the position of the cribriform plate (posterior to which the olfactory bulbs are housed), which is also moved backwards and, as a result, the frontal lobes appear more massive. Some canid lineages evolved large size and certain craniodental characters (e.g., deep jaws and large canines), which allowed them to prey on large-bodied animals. In these cases a stasis is noted in brain evolution
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the evolution of the brain in canidae mammalia carnivora
Scripta Geologica, 2009Co-Authors: George LyrasAbstract:Canid brain evolution followed three independent, yet convergent paths. Each of the three canid subfamilies (Hesperocyoninae, Borophaginae and Caninae) started with a simple brain, which gradually became more complicated as the cerebral cortex became larger and more fissured, the cerebellar hemispheres became larger and the vermis more twisted. The extent to which these evolutionary changes took place differs between the three canid subfamilies. Caninae, the living group, has the most advanced external brain anatomy. This is related to the general tendency of the carnivore brain to become more convoluted through geological time. A parallel development of similar sulcal patt erns took place in independent lineages within the Canidae. As a result, some sulci appeared independently several times during canid evolution. The cruciate sulcus appeared four times; the Sylvian, endolateral, ectolateral and ectosylvian sulci appeared three times. The skulls of species with short rostra have a more posteriorly placed posterior border of the palate than those of their close relatives with long rostra. This arrangement affects the position of the cribriform plate (posterior to which the olfactory bulbs are housed), which is also moved backwards and, as a result, the frontal lobes appear more massive. Some canid lineages evolved large size and certain craniodental characters (e.g., deep jaws and large canines), which allowed them to prey on large-bodied animals. In these cases a stasis is noted in brain evolution. This phenomenon might be related to energetic constraints.
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external brain anatomy in relation to the phylogeny of Caninae carnivora canidae
Zoological Journal of the Linnean Society, 2003Co-Authors: George Lyras, Alexandra Van Der GeerAbstract:Caninae is one of the most studied mammalian groups, nevertheless there are relatively few comparative studies on their neuroanatomy. This work contributes to a better knowledge of this subfamily, since it describes the external cerebrum anatomy of 29 out of the 35 living Caninae species, 11 of which are described for the first time. Information about their frontal region appears to be a welcome supplement to the study of the phylogeny. Two distinctive features are recognized, that can be traced back in the fossil record: the sulcal pattern medial to the coronal sulci, and the shape and relative size of the proreal gyrus. Four types are described for the first feature: (1) orthogonal: Canis, Lycaon, Cuon, Atelocynus, Speothos, (2) pentagonal: Vulpes, Alopex, Otocyon,†Eucyon, (3) parenthesis-like: †Dusicyon, Pseudalopex, Chrysocyon, (4) heart-shaped: Urocyon, Cerdocyon, Pseudalopex culpaeus, Nyctereutes. Three types are described for the second feature: (1) elongated and bilaterally compressed: Canis, Cuon, Lycaon, Atelocynus, Speothos, Cerdocyon,†Dusicyon, Chrysocyon, Pseudalopex, †Nyctereutes sinensis, †N. tingi, (2) small: Vulpes, Otocyon, Urocyon, Alopex, (3) wide and low: Nyctereutes procyonoides. On the basis of these features some phylogenetic interpretations are presented: the fossil Asian Nyctereutes is close to Cerdocyon, Speothos is close to Atelocynus, Chrysocyon is not related to Canis, Urocyon differs from Vulpes and Pseudalopex culpaeus differs from the rest of the Pseudalopex species. © 2003 The Linnean Society of London. Zoological Journal of the Linnean Society, 2003, 138, 505–522.
N Rogalskaniznik - One of the best experts on this subject based on the ideXlab platform.
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canine derived cosmid probes containing microsatellites can be used in physical mapping of arctic fox alopex lagopus and chinese raccoon dog nyctereutes procyonoides procyonoides genomes
Journal of Heredity, 2003Co-Authors: N Rogalskaniznik, Izabela Szczerbal, Gaudenz Dolf, Jürg Schläpfer, Claude Schelling, Marek SwitonskiAbstract:Rapid development of the canine marker genome map facilitates genome mapping of other Canidae species. In this study we present chromosomal localization of 18 canine-derived cosmid probes containing microsatellites in the arctic fox (Alopex lagopus) and Chinese raccoon dog (Nyctereutes procyonoides procyonoides) genomes by the use of fluorescence in situ hybridization (FISH). The chromosome localizations in the arctic fox are in general agreement with data obtained from comparative genome maps of the dog and the fox. However, our studies showed that the order of the loci on some chromosomes was changed during karyotype evolution. Therefore, we suggest that small intrachromosomal rearrangements took place.
Claude Schelling - One of the best experts on this subject based on the ideXlab platform.
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canine derived cosmid probes containing microsatellites can be used in physical mapping of arctic fox alopex lagopus and chinese raccoon dog nyctereutes procyonoides procyonoides genomes
Journal of Heredity, 2003Co-Authors: N Rogalskaniznik, Izabela Szczerbal, Gaudenz Dolf, Jürg Schläpfer, Claude Schelling, Marek SwitonskiAbstract:Rapid development of the canine marker genome map facilitates genome mapping of other Canidae species. In this study we present chromosomal localization of 18 canine-derived cosmid probes containing microsatellites in the arctic fox (Alopex lagopus) and Chinese raccoon dog (Nyctereutes procyonoides procyonoides) genomes by the use of fluorescence in situ hybridization (FISH). The chromosome localizations in the arctic fox are in general agreement with data obtained from comparative genome maps of the dog and the fox. However, our studies showed that the order of the loci on some chromosomes was changed during karyotype evolution. Therefore, we suggest that small intrachromosomal rearrangements took place.
