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https://www.readbyqxmd.com/read/29324738/population-structure-analysis-of-the-neglected-parasite-thelazia-callipaeda-revealed-high-genetic-diversity-in-eastern-asia-isolates
#1
Xi Zhang, Ya Li Shi, Lu Lu Han, Chen Xiong, Shi Qi Yi, Peng Jiang, Zeng Xian Wang, Ji Long Shen, Jing Cui, Zhong Quan Wang
BACKGROUND: Thelazia callipaeda is the causative agent of thelaziasis in canids, felids and humans. However, the population genetic structure regarding this parasite remains unclear. METHODOLOGY/PRINCIPAL FINDINGS: In this study, we first explored the genetic variation of 32 T. callipaeda clinical isolates using the following multi-molecular markers: cox1, cytb, 12S rDNA, ITS1 and 18S rDNA. The isolates were collected from 13 patients from 11 geographical locations in China...
January 11, 2018: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29307305/parasite-spread-at-the-domestic-animal-wildlife-interface-anthropogenic-habitat-use-phylogeny-and-body-mass-drive-risk-of-cat-and-dog-flea-ctenocephalides-spp-infestation-in-wild-mammals
#2
Nicholas J Clark, Jennifer M Seddon, Jan Šlapeta, Konstans Wells
BACKGROUND: Spillover of parasites at the domestic animal - wildlife interface is a pervasive threat to animal health. Cat and dog fleas (Ctenocephalides felis and C. canis) are among the world's most invasive and economically important ectoparasites. Although both species are presumed to infest a diversity of host species across the globe, knowledge on their distributions in wildlife is poor. We built a global dataset of wild mammal host associations for cat and dog fleas, and used Bayesian hierarchical models to identify traits that predict wildlife infestation probability...
January 8, 2018: Parasites & Vectors
https://www.readbyqxmd.com/read/29297813/prevalence-of-cystinuria-in-servals-leptailurus-serval-in-the-united-states
#3
Sarah A Cannizzo, Mindy Stinner, Suzanne Kennedy-Stoskopf
Cystinuria is a condition caused by defects in amino acid transport within the kidneys and small intestines. It has been reported in humans, dogs, domestic cats, ferrets, nondomestic canids, and nondomestic felids, including servals ( Leptailurus serval). Genetic mutations have been identified in dogs, humans, and domestic cats. Cystinuria usually follows an autosomal recessive inheritance, although it can be autosomal dominant and sex linked. The primary objective of this study was to screen urine samples dried on filter paper from captive servals in the United States for cystinuria by using the cyanide-nitroprusside screening test...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29258433/similar-genomic-proportions-of-copy-number-variation-within-gray-wolves-and-modern-dog-breeds-inferred-from-whole-genome-sequencing
#4
Aitor Serres-Armero, Inna S Povolotskaya, Javier Quilez, Oscar Ramirez, Gabriel Santpere, Lukas F K Kuderna, Jessica Hernandez-Rodriguez, Marcos Fernandez-Callejo, Daniel Gomez-Sanchez, Adam H Freedman, Zhenxin Fan, John Novembre, Arcadi Navarro, Adam Boyko, Robert Wayne, Carles Vilà, Belen Lorente-Galdos, Tomas Marques-Bonet
BACKGROUND: Whole genome re-sequencing data from dogs and wolves are now commonly used to study how natural and artificial selection have shaped the patterns of genetic diversity. Single nucleotide polymorphisms, microsatellites and variants in mitochondrial DNA have been interrogated for links to specific phenotypes or signals of domestication. However, copy number variation (CNV), despite its increasingly recognized importance as a contributor to phenotypic diversity, has not been extensively explored in canids...
December 19, 2017: BMC Genomics
https://www.readbyqxmd.com/read/29232415/serological-detection-of-tick-borne-relapsing-fever-in-texan-domestic-dogs
#5
Maria D Esteve-Gasent, Chloe B Snell, Shakirat A Adetunji, Julie Piccione
Tick-Borne Relapsing Fever (TBRF) is caused by spirochetes in the genus Borrelia. Very limited information exists on the incidence of this disease in humans and domestic dogs in the United States. The main objective of this study is to evaluate exposure of dogs to Borrelia turicatae, a causative agent of TBRF, in Texas. To this end, 878 canine serum samples were submitted to Texas A&M Veterinary Medical Diagnostic Laboratory from October 2011 to September 2012 for suspected tick-borne illnesses. The recombinant Borrelial antigen glycerophosphodiester phosphodiesterase (GlpQ) was expressed, purified, and used as a diagnostic antigen in both ELISA assays and Immunoblot analysis...
2017: PloS One
https://www.readbyqxmd.com/read/29230027/genome-of-the-tasmanian-tiger-provides-insights-into-the-evolution-and-demography-of-an-extinct-marsupial-carnivore
#6
Charles Y Feigin, Axel H Newton, Liliya Doronina, Jürgen Schmitz, Christy A Hipsley, Kieren J Mitchell, Graham Gower, Bastien Llamas, Julien Soubrier, Thomas N Heider, Brandon R Menzies, Alan Cooper, Rachel J O'Neill, Andrew J Pask
The Tasmanian tiger or thylacine (Thylacinus cynocephalus) was the largest carnivorous Australian marsupial to survive into the modern era. Despite last sharing a common ancestor with the eutherian canids ~160 million years ago, their phenotypic resemblance is considered the most striking example of convergent evolution in mammals. The last known thylacine died in captivity in 1936 and many aspects of the evolutionary history of this unique marsupial apex predator remain unknown. Here we have sequenced the genome of a preserved thylacine pouch young specimen to clarify the phylogenetic position of the thylacine within the carnivorous marsupials, reconstruct its historical demography and examine the genetic basis of its convergence with canids...
January 2018: Nature Ecology & Evolution
https://www.readbyqxmd.com/read/29225147/host-specificity-in-the-giardia-duodenalis-species-complex
#7
REVIEW
Simone M Cacciò, Marco Lalle, Staffan G Svärd
Giardia duodenalis is a unicellular flagellated parasite that infects the gastrointestinal tract of a wide range of mammalian species, including humans. Investigations of protein and DNA polymorphisms revealed that G. duodenalis should be considered as a species complex, whose members, despite being morphologically indistinguishable, can be classified into eight groups, or Assemblages, separated by large genetic distances. Assemblages display various degree of host specificity, with Assemblages A and B occurring in humans and many other hosts, Assemblage C and D in canids, Assemblage E in hoofed animals, Assemblage F in cats, Assemblage G in rodents, and Assemblage H in pinnipeds...
December 7, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29214655/an-anatomic-description-of-intrinsic-brachial-muscles-in-the-crab-eating-fox-cerdocyon-thous-linnaeus-1776-and-report-of-a-variant-arterial-distribution
#8
J Vélez, J Ramírez, O Aristizábal
The crab-eating fox (Cerdocyon thous) is a wild canid distributed throughout South America. It is one of the wild canids reported being hit by vehicles and injured in snares, thus inducing trauma or injury to the musculoskeletal system, possibly occurring in the brachial region. The main objective of this research was to provide an anatomic description of the crab-eating fox's intrinsic brachial muscles including shape, origin, insertion, innervation and arterial blood supply, compared with that of the domestic dog...
December 6, 2017: Anatomia, Histologia, Embryologia
https://www.readbyqxmd.com/read/29196281/the-use-of-avatar-counseling-for-hiv-aids-health-education-the-examination-of-self-identity-in-avatar-preferences
#9
Shantrel Canidate, Mark Hart
BACKGROUND: The number of adults using the Internet to obtain health information is on the rise. An estimated 66% of the adults reportedly use the Internet to obtain health information related to a specific disease (ie, human immunodeficiency virus and acquired immunodeficiency syndrome, HIV/AIDS). Previous research has demonstrated that health information seekers use the Internet to seek answers to stigma-laden questions from health avatars. OBJECTIVE: The objective of this study was to identify patterns in the choice of avatar among health information seekers (patients or public health workers) using the Internet to obtain HIV/AIDS information and to describe the demographic characteristics (age, gender, and ethnicity) of health information seekers to determine whether they preferred an avatar that was similar to their own gender and ethnicity...
December 1, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/29156583/new-paradigms-for-the-study-of-ocular-alphaherpesvirus-infections-insights-into-the-use-of-non-traditional-host-model-systems
#10
REVIEW
Matthew R Pennington, Eric C Ledbetter, Gerlinde R Van de Walle
Ocular herpesviruses, most notably human alphaherpesvirus 1 (HSV-1), canid alphaherpesvirus 1 (CHV-1) and felid alphaherpesvirus 1 (FHV-1), infect and cause severe disease that may lead to blindness. CHV-1 and FHV-1 have a pathogenesis and induce clinical disease in their hosts that is similar to HSV-1 ocular infections in humans, suggesting that infection of dogs and cats with CHV-1 and FHV-1, respectively, can be used as a comparative natural host model of herpesvirus-induced ocular disease. In this review, we discuss both strengths and limitations of the various available model systems to study ocular herpesvirus infection, with a focus on the use of these non-traditional virus-natural host models...
November 18, 2017: Viruses
https://www.readbyqxmd.com/read/29152188/prey-use-by-dingoes-in-a-contested-landscape-ecosystem-service-provider-or-biodiversity-threat
#11
Damian S Morrant, Christopher M Wurster, Christopher N Johnson, James R A Butler, Bradley C Congdon
In Australia, dingoes (Canis lupus dingo) have been implicated in the decline and extinction of a number of vertebrate species. The lowland Wet Tropics of Queensland, Australia is a biologically rich area with many species of rainforest-restricted vertebrates that could be threatened by dingoes; however, the ecological impacts of dingoes in this region are poorly understood. We determined the potential threat posed by dingoes to native vertebrates in the lowland Wet Tropics using dingo scat/stomach content and stable isotope analyses of hair from dingoes and potential prey species...
November 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29152186/cumulative-effects-of-climate-and-landscape-change-drive-spatial-distribution-of-rocky-mountain-wolverine-gulo-gulo-l
#12
Nicole Heim, Jason T Fisher, Anthony Clevenger, John Paczkowski, John Volpe
Contemporary landscapes are subject to a multitude of human-derived stressors. Effects of such stressors are increasingly realized by population declines and large-scale extirpation of taxa worldwide. Most notably, cumulative effects of climate and landscape change can limit species' local adaptation and dispersal capabilities, thereby reducing realized niche space and range extent. Resolving the cumulative effects of multiple stressors on species persistence is a pressing challenge in ecology, especially for declining species...
November 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/29131852/unraveling-the-key-to-the-resistance-of-canids-to-prion-diseases
#13
Natalia Fernández-Borges, Beatriz Parra, Enric Vidal, Hasier Eraña, Manuel A Sánchez-Martín, Jorge de Castro, Saioa R Elezgarai, Martí Pumarola, Tomás Mayoral, Joaquín Castilla
One of the characteristics of prions is their ability to infect some species but not others and prion resistant species have been of special interest because of their potential in deciphering the determinants for susceptibility. Previously, we developed different in vitro and in vivo models to assess the susceptibility of species that were erroneously considered resistant to prion infection, such as members of the Leporidae and Equidae families. Here we undertake in vitro and in vivo approaches to understand the unresolved low prion susceptibility of canids...
November 13, 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/29119703/rickettsia-parkeri-in-free-ranging-wild-canids-from-brazilian-pampa
#14
B Dall'Agnol, U A Souza, B Weck, T C Trigo, M M A Jardim, F B Costa, M B Labruna, F B Peters, M O Favarini, F D Mazim, C A S Ferreira, J Reck
Spotted fevers are tick-borne diseases associated with various Rickettsia species. Rickettsia parkeri sensu stricto (s.s.) is the agent of an emerging eschar-associated rickettsiosis in humans from the USA and South American Pampa. Considering that R. parkeri s.s. is restricted to Americas and the potential role of dogs in the epidemiology of the disease, it is thus reasonable to hypothesize that wild canids could be involved in the enzootic cycle of this rickettsiosis. The aim of this work was to investigate the potential role of the wild canids from Pampa, Cerdocyon thous (crab-eating fox) and Lycalopex gymnocercus (Pampas fox), in the ecology of R...
November 8, 2017: Transboundary and Emerging Diseases
https://www.readbyqxmd.com/read/29111373/rickettsia-spp-among-wild-mammals-and-their-respective-ectoparasites-in-pantanal-wetland-brazil
#15
Keyla Carstens Marques de Sousa, Heitor Miraglia Herrera, Fabiana Lopes Rocha, Francisco Borges Costa, Thiago Fernandes Martins, Marcelo Bahia Labruna, Rosangela Zacarias Machado, Marcos Rogério André
The genus Rickettsia comprises obligatory intracellular bacteria, well known to cause zoonotic diseases around the world. The present work aimed to investigate the occurrence of Rickettsia spp. in wild animals, domestic dogs and their respective ectoparasites in southern Pantanal region, central-western Brazil, by molecular and serological techniques. Between August 2013 and March 2015, serum, whole blood and/or spleen samples were collected from 31 coatis, 78 crab-eating foxes, seven ocelots, 42 dogs, 110 wild rodents, and 30 marsupials...
October 27, 2017: Ticks and Tick-borne Diseases
https://www.readbyqxmd.com/read/29052521/high-seroprevalance-of-neospora-caninum-in-dogs-in-victoria-australia-compared-to-20%C3%A2-years-ago
#16
Sarah Sloan, Jan Šlapeta, Abdul Jabbar, Jaimie Hunnam, Bert De Groef, Grant Rawlin, Christina McCowan
BACKGROUND: Canids are definitive hosts of the apicomplexan parasite Neospora caninum, the leading cause of abortion in cattle worldwide. For horizontal transmission from canids to occur, oocysts of N. caninum must be shed by the definitive host into the environment of susceptible intermediate hosts such as cattle. The purpose of this study was to determine the prevalence of N. caninum in canids in Victoria, Australia's leading dairy producing state. RESULTS: Neospora-like oocysts were observed in 8% (18/234) of faecal samples from wild dogs, domestic dogs and red foxes from Victoria, Australia...
October 19, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29046813/single-nucleotide-polymorphisms-and-microsatellites-in-the-canine-glutathione-s-transferase-pi-1-gstp1-gene-promoter
#17
James Sacco, Sarah Mann, Keller Toral
BACKGROUND: Genetic polymorphisms within the glutathione S-transferase P1 (GSTP1) gene affect the elimination of toxic xenobiotics by the GSTP1 enzyme. In dogs, exposure to environmental chemicals that may be GSTP1 substrates is associated with cancer. The objectives of this study were to investigate the genetic variability in the GSTP1 promoter in a diverse population of 278 purebred dogs, compare the incidence of any variants found between breeds, and predict their effects on gene expression...
2017: Canine Genetics and Epidemiology
https://www.readbyqxmd.com/read/29035862/first-report-of-pneumonia-caused-by-angiostrongylus-vasorum-in-a-golden-jackal
#18
Pavle Gavrilović, Darko Marinković, Igor Todorović, Aleksandra Gavrilović
Angiostrongylosis caused by metastrongyloid nematode Angiostrongylus vasorum is an emerging parasitic disease in Europe and the red fox (Vulpes vulpes) is considered as a main reservoir species for this parasite. Little is known about the role of other wild canids in the epidemiology of angiostrongylosis. The present paper provides the first description of pathomorphological lesions caused by A. vasorum in a golden jackal (Canis aureus). The paper describes a case of co-infection with A. vasorum and Dirofilaria immitis in a one-year-old female golden jackal, legally hunted near the City of Kovin, South Banat, Serbia...
December 20, 2017: Acta Parasitologica
https://www.readbyqxmd.com/read/28985326/the-effects-of-captivity-on-the-mammalian-gut-microbiome
#19
Valerie J McKenzie, Se Jin Song, Frédéric Delsuc, Tiffany L Prest, Angela M Oliverio, Timothy M Korpita, Alexandra Alexiev, Katherine R Amato, Jessica L Metcalf, Martin Kowalewski, Nico L Avenant, Andres Link, Anthony Di Fiore, Andaine Seguin-Orlando, Claudia Feh, Ludovic Orlando, Joseph R Mendelson, Jon Sanders, Rob Knight
Recent studies increasingly note the effect of captivity or the built environment on the microbiome of humans and other animals. As symbiotic microbes are essential to many aspects of biology (e.g., digestive and immune functions), it is important to understand how lifestyle differences can impact the microbiome, and, consequently, the health of hosts. Animals living in captivity experience a range of changes that may influence the gut bacteria, such as diet changes, treatments, and reduced contact with other individuals, species and variable environmental substrates that act as sources of bacterial diversity...
August 7, 2017: Integrative and Comparative Biology
https://www.readbyqxmd.com/read/28971014/occurrence-of-tongue-worm-linguatula-cf-serrata-pentastomida-linguatulidae-in-wild-canids-and-livestock-in-south-eastern-australia
#20
Shokoofeh Shamsi, Kate McSpadden, Sara Baker, David J Jenkins
Pentastomids are obligate zoonotic arthropod parasites utilising canids and vulpids as their definitive hosts and several herbivorous species as their intermediate hosts. Reported only 10 times in Australia over the last 150 years as incidental findings, adult Pentastomids referred to as Linguatula serrata have been encountered in nasal cavities of domestic and wild dogs, and foxes. Nymphs have been reported in cattle and rabbits. In the present study, a number of potential definitive hosts, including red foxes (Vulpes vulpes), wild dogs (Canis lupus dingo and C...
December 2017: International Journal for Parasitology. Parasites and Wildlife
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