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https://www.readbyqxmd.com/read/28211157/unravelling-intravertebral-integration-modularity-and-disparity-in-felidae-mammalia
#1
Marcela Randau, Anjali Goswami
Morphological integration and modularity, which describe the relationships among morphological attributes and reflect genetic, developmental, and functional interactions, have been hypothesized to be major influences on trait responses to selection and thus morphological evolution. The mammalian presacral vertebral column shows little variation in vertebral count and therefore specialization for function occurs primarily through modification of vertebral shape. However, vertebral shape has been suggested to be under strong control from developmental canalization, although this has never been explicitly tested...
February 17, 2017: Evolution & Development
https://www.readbyqxmd.com/read/28197762/mitochondrial-haplotypes-of-aelurostrongylus-abstrusus-and-troglostrongylus-brevior-nematoda-metastrongyloidea-from-domestic-and-wild-felids
#2
Donato Traversa, Fabrizia Veronesi, Anastasia Diakou, Raffaella Iorio, Giulia Simonato, Federica Marcer, Angela Di Cesare
The lungworm Aelurostrongylus abstrusus is the most important respiratory parasite of domestic cats. Pulmonary aelurostrongylosis has been reported in wild felids, though unequivocally evidence of wildlife infection by A. abstrusus is scant. Recently, Troglostrongylus brevior, a lungworm usually infecting wild felids, has been described in domestic cats from Mediterranean areas. The present work evaluates the sequence variation of an informative region within the gene encoding the mitochondrial cytochrome c oxidase subunit 1 of A...
February 14, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28195150/molecular-dietary-analysis-of-two-sympatric-felids-in-the-mountains-of-southwest-china-biodiversity-hotspot-and-conservation-implications
#3
Mengyin Xiong, Dajun Wang, Hongliang Bu, Xinning Shao, Dan Zhang, Sheng Li, Rongjiang Wang, Meng Yao
Dietary information is lacking in most of small to mid-sized carnivores due to their elusive predatory behaviour and versatile feeding habits. The leopard cat (LPC; Prionailurus bengalensis) and the Asiatic golden cat (AGC; Catopuma temminckii) are two important yet increasingly endangered carnivore species in the temperate mountain forest ecosystem in Southwest China, a global biodiversity hotspot and a significant reservoir of China's endemic species. We investigated the vertebrate prey of the two sympatric felids using faecal DNA and a next-generation sequencing (NGS)/metabarcoding approach...
February 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28130677/sarcocystis-menglaensis-n-sp-apicomplexa-sarcocystidae-from-williamson-s-mouse-deer-tuagulus-williamsoni-kloss-artiodactyla-tragulidae
#4
Jun-Jie Hu, Hong-Liang Li, Si Huang, Ming-Yong Chen, Gerald W Esch, Zhao-Qing Yang, Jing-Ling Song
Williamson's mouse deer, Tuagulus williamsoni (Kloss), is one of the smallest ungulates among tragulid species found in northern Thailand, and Yunnan Province, China. Here we describe Sarcocystis menglaensis n. sp., infecting two of 14 (14.3%) Williamson's mouse deer from south-western China. By light microscopy, sarcocysts of S. menglaensis are microscopic, up to 2,170 μm in length, and have a striated sarcocyst wall with 1.5-3.6 μm long palisade-like protrusions. Transmission electron microscopy observations revealed that sarcocyst wall is of "type 10f", and has numerous villar protrusions folded over the cyst wall...
February 2017: Systematic Parasitology
https://www.readbyqxmd.com/read/28127718/detection-of-toxoplasma-gondii-in-faeces-of-privately-owned-cats-using-two-pcr-assays-targeting-the-b1-gene-and-the-529-bp-repetitive-element
#5
Fabrizia Veronesi, Azzurra Santoro, Giovanni L Milardi, Manuela Diaferia, Giulia Morganti, David Ranucci, Simona Gabrielli
Toxoplasma gondii infection is a worldwide parasitic zoonosis with a high-health risk for humans. The key epidemiological role played by felids is related to oocyst shedding. The present study compared two amplification protocols for the molecular diagnosis of Toxoplasma infection in owned cats. A total of 78 owned cats referred to an Italian university-teaching hospital and exposed to various T. gondii-associated risk factors were sampled for blood and faeces. Faecal specimens were processed by flotation and tested using 2 copro-PCRs targeting the widely used B1 gene and the 529-bp repetitive element (RE)...
January 27, 2017: Parasitology Research
https://www.readbyqxmd.com/read/28111808/metabolism-of-prostaglandin-f2alpha-in-eurasian-lynx-lynx-lynx-and-asian-leopard-cat-prionailurus-bengalensis-euptilura
#6
M Dehnhard, S V Naidenko, K Jewgenow
Methods for monitoring endocrine status are useful tools for reproduction management. In particular, successful captive breeding of endangered feline species requires reliable methods for pregnancy diagnosis. In many species, uterine and placental prostaglandin-F2α (PGF2α) is involved in the regulation of reproductive processes. PGF2α is metabolized to 13,14-dihydro-15-keto-PGF2a (PGFM) during the first passage through the lungs. Immunoreactive PGFM is elevated in pregnant felids during the last trimester and is used for pregnancy diagnosis, although authentic PGFM is excreted in negligible amounts...
January 22, 2017: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/28109842/reverse-transcriptase-loop-mediated-isothermal-amplification-for-the-detection-of-feline-coronavirus
#7
Angelica Stranieri, Stefania Lauzi, Alessia Giordano, Saverio Paltrinieri
The Feline coronavirus (FCoV) is the etiological agent of feline infectious peritonitis (FIP), a lethal disease of felids. The role of molecular methods is controversial for the diagnosis of FIP, while essential for the identification of the shedders. Thus, a fast and inexpensive method for the detection of FCoV could be beneficial, especially in multicat environments. A reverse transcription loop mediated isothermal amplification (RT-LAMP) assay was developed. RNA extraction and RT-nPCR for FCoV were performed on thirty-two samples (11 faeces, 9 blood, 8 effusions, and 4 lymph nodes) collected from 27 cats...
January 18, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28092905/endocranial-morphology-of-the-extinct-north-american-lion-panthera-atrox
#8
Andrew R Cuff, Christopher Stockey, Anjali Goswami
The extinct North American lion (Panthera atrox) is one of the largest felids (Mammalia, Carnivora) to have ever lived, and it is known from a plethora of incredibly well-preserved remains. Despite this abundance of material, there has been little research into its endocranial anatomy. CT scans of a skull of P. atrox from the Pleistocene La Brea Tar pits were used to generate the first virtual endocranium for this species and to elucidate previously unknown details of its brain size and gross structure, cranial nerves, and inner-ear morphology...
2016: Brain, Behavior and Evolution
https://www.readbyqxmd.com/read/28080904/photoreceptor-degeneration-in-a-mountain-lion-cub-puma-concolor
#9
Andrew R DiSalvo, Christopher M Reilly, K Tomo Wiggans, Leslie W Woods, Ray F Wack, Deana L Clifford
An orphaned 4-mo-old female mountain lion cub ( Puma concolor ) was captured along the coastline in Montaña de Oro State Park in Los Osos, California, USA. Following suspicion that the cub was visually impaired, ophthalmic examination revealed diffuse bilateral retinal atrophy. Due to a poor prognosis, humane euthanasia was elected. Necropsy and histopathological findings were consistent with photoreceptor degeneration. Based on the cub's signalment, history, and histopathology, a genetic or nutritional etiology was suspected, with the former etiology more strongly supported...
December 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28074717/endosulfan-poisoning-in-canids-and-felids-in-the-calabria-region-of-southern-italy
#10
Antonella De Roma, Carmela Rossini, Caterina Riverso, Giorgio Galiero, Mauro Esposito
Endosulfan, a highly toxic insecticide and acaricide, was globally banned under the Stockholm Convention in May 2011 because of its threats to human health and the environment. Despite the ban on its use, endosulfan is still present in the environment, causing poisoning events in domestic animals and wildlife. Toxicologic analysis of poisoned animals conducted by the Istituto Zooprofilattico Sperimentale del Mezzogiorno revealed that in the past 3 y, this pesticide has not disappeared in the regions of interest...
January 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28056966/pseudorabies-virus-infection-aujeszky-s-disease-in-an-iberian-lynx-lynx-pardinus-in-spain-a-case-report
#11
A Javier Masot, María Gil, David Risco, Olga M Jiménez, José I Núñez, Eloy Redondo
BACKGROUND: The only natural hosts of Pseudorabies virus (PRV) are members of the family Suidae (Sus scrofa scrofa). In species other than suids infection is normally fatal. In these mammals, including carnivores, PRV typically causes serious neurologic disease. The endangered Iberian lynx (Lynx pardinus) is a wild feline endemic to south-western Europe (Iberian Peninsula). The Iberian lynx was found to be the world's most endangered felid species in 2002. In wild felines, PRV infection has only been previously reported once in a Florida panther in 1994...
January 5, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28052073/landscape-use-and-co-occurrence-patterns-of-neotropical-spotted-cats
#12
Mariana B Nagy-Reis, James D Nichols, Adriano G Chiarello, Milton Cezar Ribeiro, Eleonore Z F Setz
Small felids influence ecosystem dynamics through prey and plant population changes. Although most of these species are threatened, they are accorded one of the lowest research efforts of all felids, and we lack basic information about them. Many felids occur in sympatry, where intraguild competition is frequent. Therefore, assessing the role of interspecific interactions along with the relative importance of landscape characteristics is necessary to understand how these species co-occur in space. Here, we selected three morphologically similar and closely related species of small Neotropical cats to evaluate the roles of interspecific interactions, geomorphometry, environmental, and anthropogenic landscape characteristics on their habitat use...
2017: PloS One
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
#13
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
https://www.readbyqxmd.com/read/28043366/semen-cryopreservation-and-radical-reduction-capacity-of-seminal-fluid-in-captive-african-lion-panthera-leo
#14
I Luther, U Jakop, I Lueders, A Tordiffe, C Franz, J Schiller, A Kotze, K Müller
Optimizing cryopreservation protocols for nondomestic felids contributes to the successful development of assisted reproduction techniques and genetic resource banking. In this study, we describe a simple cryopreservation procedure for African lion (Panthera leo) ejaculates, which was tested with different packaging options and different sperm numbers per dose. By applying urethral catheterization and electroejaculation, 17 ejaculates with greater than 20% motile and greater than 5% progressively motile sperm were collected...
February 2017: Theriogenology
https://www.readbyqxmd.com/read/28028000/phylogeography-of-toxoplasma-gondii-points-to-a-south-american-origin
#15
Emilie Bertranpetit, Thibaut Jombart, Emmanuel Paradis, Hilda Pena, Jitender Dubey, Chunlei Su, Aurélien Mercier, Sébastien Devillard, Daniel Ajzenberg
Toxoplasma gondii, a protozoan found ubiquitously in mammals and birds, is the etiologic agent of toxoplasmosis, a disease causing substantial public health burden worldwide, including about 200,000 new cases of congenital toxoplasmosis each year. Clinical severity has been shown to vary across geographical regions, with South America exhibiting the highest burden. Unfortunately, the drivers of these heterogeneities are still poorly understood, and the geographical origin and historical spread of the pathogen worldwide are currently uncertain...
December 24, 2016: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28003486/feline-immunodeficiency-virus-cross-species-transmission-implications-for-emergence-of-new-lentiviral-infections
#16
Justin Lee, Jennifer L Malmberg, Britta A Wood, Sahaja Hladky, Ryan Troyer, Melody Roelke, Mark Cunningham, Roy McBride, Winston Vickers, Walter Boyce, Erin Boydston, Laurel Serieys, Seth Riley, Kevin Crooks, Sue VandeWoude
: Owing to a complex history of host-parasite coevolution, lentiviruses exhibit a high degree of species specificity. Given the well-documented viral archeology of HIV emergence following human exposures to SIV, understanding processes that promote successful cross-species lentiviral transmissions is highly relevant. We have previously reported natural cross-species transmission of a subtype of feline immunodeficiency virus, puma lentivirus A (PLVA), between bobcats (Lynx rufus) and mountain lions (Puma concolor) in a small number of animals in California and Florida...
December 21, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27992457/comparative-serum-fatty-acid-profiles-of-captive-and-free-ranging-cheetahs-acinonyx-jubatus-in-namibia
#17
Adrian S W Tordiffe, Bettina Wachter, Sonja K Heinrich, Fred Reyers, Lodewyk J Mienie
Cheetahs (Acinonyx jubatus) are highly specialised large felids, currently listed as vulnerable on the IUCN red data list. In captivity, they are known to suffer from a range of chronic non-infectious diseases. Although low heterozygosity and the stress of captivity have been suggested as possible causal factors, recent studies have started to focus on the contribution of potential dietary factors in the pathogenesis of these diseases. Fatty acids are an important component of the diet, not only providing a source of metabolisable energy, but serving other important functions in hormone production, cellular signalling as well as providing structural components in biological membranes...
2016: PloS One
https://www.readbyqxmd.com/read/27975234/pharmacokinetics-and-derivation-of-an-anticancer-dosing-regimen-for-the-novel-anti-cancer-agent-isobutyl-deoxynyboquinone-ib-dnq-a-nqo1-bioactivatable-molecule-in-the-domestic-felid-species
#18
Alycen P Lundberg, Joshua M Francis, Malgorzata Pajak, Elizabeth I Parkinson, Kathryn L Wycislo, Thomas J Rosol, Megan E Brown, Cheryl A London, Levent Dirikolu, Paul J Hergenrother, Timothy M Fan
Isobutyl-deoxynyboquinone (IB-DNQ) is a selective substrate for NAD(P)H:quinone oxidoreductase (NQO1), an enzyme overexpressed in many solid tumors. Following activation by NQO1, IB-DNQ participates in a catalytic futile reduction/reoxidation cycle with consequent toxic reactive oxygen species generation within the tumor microenvironment. To elucidate the potential of IB-DNQ to serve as a novel anticancer agent, in vitro studies coupled with in vivo pharmacokinetic and toxicologic investigations in the domestic felid species were conducted to investigate the tractability of IB-DNQ as a translationally applicable anticancer agent...
December 14, 2016: Investigational New Drugs
https://www.readbyqxmd.com/read/27964752/extreme-genomic-erosion-after-recurrent-demographic-bottlenecks-in-the-highly-endangered-iberian-lynx
#19
Federico Abascal, André Corvelo, Fernando Cruz, José L Villanueva-Cañas, Anna Vlasova, Marina Marcet-Houben, Begoña Martínez-Cruz, Jade Yu Cheng, Pablo Prieto, Víctor Quesada, Javier Quilez, Gang Li, Francisca García, Miriam Rubio-Camarillo, Leonor Frias, Paolo Ribeca, Salvador Capella-Gutiérrez, José M Rodríguez, Francisco Câmara, Ernesto Lowy, Luca Cozzuto, Ionas Erb, Michael L Tress, Jose L Rodriguez-Ales, Jorge Ruiz-Orera, Ferran Reverter, Mireia Casas-Marce, Laura Soriano, Javier R Arango, Sophia Derdak, Beatriz Galán, Julie Blanc, Marta Gut, Belen Lorente-Galdos, Marta Andrés-Nieto, Carlos López-Otín, Alfonso Valencia, Ivo Gut, José L García, Roderic Guigó, William J Murphy, Aurora Ruiz-Herrera, Tomas Marques-Bonet, Guglielmo Roma, Cedric Notredame, Thomas Mailund, M Mar Albà, Toni Gabaldón, Tyler Alioto, José A Godoy
BACKGROUND: Genomic studies of endangered species provide insights into their evolution and demographic history, reveal patterns of genomic erosion that might limit their viability, and offer tools for their effective conservation. The Iberian lynx (Lynx pardinus) is the most endangered felid and a unique example of a species on the brink of extinction. RESULTS: We generate the first annotated draft of the Iberian lynx genome and carry out genome-based analyses of lynx demography, evolution, and population genetics...
December 14, 2016: Genome Biology
https://www.readbyqxmd.com/read/27942045/metabolic-profiling-reveals-effects-of-age-sexual-development-and-neutering-in-plasma-of-young-male-cats
#20
David Allaway, Matthew S Gilham, Alison Colyer, Thomas J Jönsson, Kelly S Swanson, Penelope J Morris
Neutering is a significant risk factor for obesity in cats. The mechanisms that promote neuter-associated weight gain are not well understood but following neutering, acute changes in energy expenditure and energy consumption have been observed. Metabolic profiling (GC-MS and UHPLC-MS-MS) was used in a longitudinal study to identify changes associated with age, sexual development and neutering in male cats fed a nutritionally-complete dry diet to maintain an ideal body condition score. At eight time points, between 19 and 52 weeks of age, fasted blood samples were taken from kittens neutered at either 19 weeks of age (Early Neuter (EN), n = 8) or at 31 weeks of age (Conventional Neuter (CN), n = 7)...
2016: PloS One
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