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https://www.readbyqxmd.com/read/28547342/trichosporon-asteroides-isolated-from-cutaneous-lesions-of-a-suspected-case-of-paracoccidioidomycosis-ceti-in-a-bottlenose-dolphin-tursiops-truncatus
#1
Keiichi Ueda, Ichiro Nakamura, Eiko Nakagawa Itano, Kazunori Takemura, Yasutomo Nakazato, Ayako Sano
"Paracoccidioidomycosis ceti" is a rare zoonotic fungal infection affecting dolphins and is endemic worldwide. The causative agents are Paracoccidioides species; however, it is impossible to isolate the fungal species. We isolated Trichosporon asteroides from multifocal, irregularly raised skin lesions on a female bottlenose dolphin (Tursiops truncatus) captured off coast of Japan, which was suspected to have "paracoccidioidomycosis ceti." An abundance of round, yeast-like cells was detected in a potassium hydroxide direct-mount specimen of the skin samples; however, nested PCR targeting the partial sequence of 43-kDa glycoprotein-coding gene correspondent to Paracoccidioides sp...
May 25, 2017: Mycopathologia
https://www.readbyqxmd.com/read/28542897/osteoarthritis-in-two-marine-mammals-and-22-land-mammals-learning-from-skeletal-remains
#2
Korakot Nganvongpanit, Ratsadakorn Soponteerakul, Piyatida Kaewkumpai, Veerasak Punyapornwithaya, Kittisak Buddhachat, Raksiri Nomsiri, Patcharaporn Kaewmong, Kongkiat Kittiwatanawong, Rachanchai Chawangwongsanukun, Taweepoke Angkawanish, Chatchote Thitaram, Pasuk Mahakkanukrauh
The occurrence of osteoarthritis (OA) in marine mammals is still questionable. Here we investigated the prevalence of OA in marine (dolphin and dugong) and terrestrial mammals (Asian elephant, Asiatic buffalo, camel, cat, cattle, deer, dog, domestic goat, horse, human, hyena, impala, lion, Malayan tapir, Assam macaque, mule, pig, rabbit, red kangaroo, sheep, tiger and waterbuck). Skeletal remains obtained from five institutes were used as subjects; a total of 45 different parts (locations) of bones were observed for OA lesions...
May 23, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28526686/amazon-river-dolphins-inia-geoffrensis-modify-biosonar-output-level-and-directivity-during-prey-interception-in-the-wild
#3
Michael Ladegaard, Frants Havmand Jensen, Kristian Beedholm, Vera Maria Ferreira da Silva, Peter Teglberg Madsen
Toothed whales have evolved to live in extremely different habitats and yet they all rely strongly on echolocation for finding and catching prey. Such biosonar based foraging involves distinct phases of searching for, approaching, and capturing prey, where echolocating animals gradually adjust sonar output to actively shape the flow of sensory information. Measuring those outputs in absolute levels requires hydrophone arrays centred on the biosonar beam axis, but this has never been done for wild toothed whales approaching and capturing prey...
May 19, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28521967/does-pterygomaxillary-disjunction-in-surgically-assisted-rapid-maxillary-expansion-influence-upper-airway-volume-a-prospective-study-using-dolphin-imaging-3d
#4
J Rômulo de Medeiros, M Ferraro Bezerra, F W Gurgel Costa, T Pinheiro Bezerra, C R de Araújo Alencar, E C Studart Soares
Surgically assisted rapid maxillary expansion has been used for the treatment of transverse maxillary deficiency. This prospective study aimed to evaluate the effect of this surgery (with or without pterygomaxillary disjunction) on the upper airway volume. The patients were randomly divided into two groups: without pterygomaxillary disjunction (-PD) and with pterygomaxillary disjunction (+PD). Eleven patients per group were estimated to obtain a representative sample (90% of power and 95% of confidence level)...
May 15, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28513327/dolphin-morbillivirus-in-a-fin-whale-balaenoptera-physalus-in-denmark-2016
#5
Wendy K Jo, Miguel L Grilo, Peter Wohlsein, Emilie U Andersen-Ranberg, Mette S Hansen, Carl C Kinze, Charlotte K Hjulsager, Morten T Olsen, Kristina Lehnert, Ellen Prenger-Berninghoff, Ursula Siebert, Albert Osterhaus, Wolfgang Baumgärtner, Lasse F Jensen, Erhard van der Vries
We studied the etiology of encephalitis in a fin whale (Balaenoptera physalus) that stranded in 2016 on the coast of Denmark. Dolphin morbillivirus (DMV) was detected in the brain and other organs. Phylogenetics showed close relation to DMV isolated from a striped dolphin (Stenella coeruleoalba) from Spain in 2012.
May 17, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28510577/are-horses-capable-of-mirror-self-recognition-a-pilot-study
#6
Paolo Baragli, Elisa Demuru, Chiara Scopa, Elisabetta Palagi
Mirror Self-Recognition (MSR) unveils complex cognitive, social and emotional skills and it has been found only in humans and few other species, such as great apes, dolphins, elephants and magpies. In this pilot study, we tested if horses show the capacity of MSR. Four subjects living socially under naturalistic conditions were selected for the experiment. We adopted the classical mark test, which consists in placing a coloured mark on an out-of-view body part, visible only through mirror inspection. If the animal considers the image as its own, it will use its reflection to detect the mark and will try to explore it...
2017: PloS One
https://www.readbyqxmd.com/read/28506838/phylogenomic-analysis-of-the-complete-sequence-of-a-gastroenteritis-associated-cetacean-adenovirus-bottlenose-dolphin-adenovirus-1-reveals-a-high-degree-of-genetic-divergence
#7
Maja Malmberg, Consuelo Rubio-Guerri, Juliette Hayer, Daniel García-Párraga, Elvira Nieto-Pelegrín, Mar Melero, Teresa Álvaro, Mónica Valls, Jose Manuel Sánchez-Vizcaíno, Sándor Belák, Fredrik Granberg
Adenoviruses are common pathogens in vertebrates, infecting a wide range of hosts, but only having rarely been detected and correlated with disease in cetaceans. This article describes the first complete genomic sequence of a cetacean adenovirus, bottlenose dolphin adenovirus 1 (BdAdV-1), detected in captive bottlenose dolphin population (Tursiops truncatus) suffering from self-limiting gastroenteritis. The complete genome sequence of BdAdV-1 was recovered from data generated by high-throughput sequencing and validated by Sanger sequencing...
May 12, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28503080/a-bayesian-mixture-model-for-missing-data-in-marine-mammal-growth-analysis
#8
Mary E Shotwell, Wayne E McFee, Elizabeth H Slate
Much of what is known about bottle nose dolphin (Tursiops truncatus) anatomy and physiology is based on necropsies from stranding events. Measurements of total body length, total body mass, and age are used to estimate growth. It is more feasible to retrieve and transport smaller animals for total body mass measurement than larger animals, introducing a systematic bias in sampling. Adverse weather events, volunteer availability, and other unforeseen circumstances also contribute to incomplete measurement. We have developed a Bayesian mixture model to describe growth in detected stranded animals using data from both those that are fully measured and those not fully measured...
December 2016: Environmental and Ecological Statistics
https://www.readbyqxmd.com/read/28494705/brucellosis-in-endangered-hector-s-dolphins-cephalorhynchus-hectori
#9
K Buckle, W D Roe, L Howe, S Michael, P J Duignan, E Burrows, H Ha, S Humphrey, W L McDonald
Brucella spp infections of marine mammals are often asymptomatic but have been associated with reproductive losses and deaths. Zoonotic infections originating from marine isolates have also been described. Hector's dolphins (Cephalorhynchus hectori) are an endangered species with a declining population, and the role of infectious disease in population dynamics is not fully understood. In this study, 27 Hector's dolphins found dead around the New Zealand coastline between November 2006 and October 2010 were evaluated for lesions previously associated with cetacean brucellosis...
January 1, 2017: Veterinary Pathology
https://www.readbyqxmd.com/read/28492181/coinfection-by-streptococcus-phocae-and-cetacean-morbillivirus-in-a-short-beaked-common-dolphin-delphinus-delphis
#10
J Díaz-Delgado, E Sierra, A I Vela, M Arbelo, D Zucca, K R Groch, A Fernández
We describe gross, histopathological, and immunohistochemical features of Streptococcus phocae and cetacean morbillivirus coinfection in a short-beaked common dolphin Delphinus delphis. Major gross findings were cutaneous purulent nodules in the tail fluke, vegetative mitral valve endocarditis, and presumed postpartum pyometra. Histologic examination revealed bacterial septicemia characterized by widespread intravascular coccoid bacterial emboli. These were associated with fibrinonecrotizing to pyogranulomatous dermatitis and panniculitis, embolic pneumonia, neutrophilic and lymphoplasmacytic meningochoroiditis, random neutrophilic hepatitis, lymphoplasmacytic myocarditis and epicarditis, necrotizing adrenalitis, suppurative endometritis, and multicentric reactive lymphadenopathy...
May 11, 2017: Diseases of Aquatic Organisms
https://www.readbyqxmd.com/read/28467830/the-environment-as-a-driver-of-immune-and-endocrine-responses-in-dolphins-tursiops-truncatus
#11
Patricia A Fair, Adam M Schaefer, Dorian S Houser, Gregory D Bossart, Tracy A Romano, Cory D Champagne, Jeffrey L Stott, Charles D Rice, Natasha White, John S Reif
Immune and endocrine responses play a critical role in allowing animals to adjust to environmental perturbations. We measured immune and endocrine related markers in multiple samples from individuals from two managed-care care dolphin groups (n = 82 samples from 17 dolphins and single samples collected from two wild dolphin populations: Indian River Lagoon, (IRL) FL (n = 26); and Charleston, (CHS) SC (n = 19). The immune systems of wild dolphins were more upregulated than those of managed-care-dolphins as shown by higher concentrations of IgG and increases in lysozyme, NK cell function, pathogen antibody titers and leukocyte cytokine transcript levels...
2017: PloS One
https://www.readbyqxmd.com/read/28464668/automatic-classification-of-whistles-from-coastal-dolphins-of-the-southern-african-subregion
#12
Florence Erbs, Simon H Elwen, Tess Gridley
Passive acoustic monitoring (PAM) is commonly used to generate information on the distribution, abundance, and behavior of cetacean species. In African waters, the utilization of PAM lags behind most other continents. This study examines whether the whistles of three coastal delphinid species (Delphinus delphis, Tursiops truncatus, and Tursiops aduncus) commonly encountered in the southern African subregion can be readily distinguished using both statistical analysis of standard whistle parameters and the automated detection and classification software PAMGuard...
April 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28464652/burst-pulses-of-guiana-dolphin-sotalia-guianensis-in-southeastern-brazil
#13
Luciana Guimarães de Andrade, Tatiana Lemos Bisi, José Lailson-Brito, Alexandre de Freitas Azevedo
Acoustic studies of Guiana dolphin have been focused on whistles, with little known about pulse signals in this species. This study characterized the temporal and spectral properties of Guiana dolphin burst pulses. Groups of 2 to 23 Guiana dolphins were recorded while feeding and socializing in shallow waters in Guanabara Bay, southeastern Brazil, in 2013 and 2014. Burst pulse analysis involved two steps: signal detection and acoustic parameter analysis. Eight variables were analyzed for 197 total burst pulses: number of clicks, burst pulse duration, interclick interval, click duration, peak frequency, center frequency, -3 dB bandwidth, and -10 dB bandwidth...
April 2017: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/28444010/three-dimensional-evaluation-of-alveolar-bone-changes-in-response-to-different-rapid-palatal-expansion-activation-rates
#14
Brian LaBlonde, Manuel Lagravere Vich, Paul Edwards, Katherine Kula, Ahmed Ghoneima
INTRODUCTION: The aim of this multi-center retrospective study was to quantify the changes in alveolar bone height and thickness after using two different rapid palatal expansion (RPE) activation protocols, and to determine whether a more rapid rate of expansion is likely to cause more adverse effects, such as alveolar tipping, dental tipping, fenestration and dehiscence of anchorage teeth. METHODS: The sample consisted of pre- and post-expansion records from 40 subjects (age 8-15 years) who underwent RPE using a 4-banded Hyrax appliance as part of their orthodontic treatment to correct posterior buccal crossbites...
February 2017: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/28442646/clinico-pathological-findings-in-a-striped-dolphin-stenella-coeruleoalba-affected-by-rhabdomyolysis-and-myoglobinuric-nephrosis-capture-myopathy
#15
Federico Bonsembiante, Cinzia Centelleghe, Gabriele Rossi, Stefania Giglio, Elena Madeo, Maria Elena Gelain, Sandro Mazzariol
A striped dolphin (Stenella coeruleoalba) calf stranded alive because of a Salter-Harris fracture type 1 of a caudal vertebra and remained in a provisional rehabilitation facility for 3 days where the fracture stabilization was attempted, but he died the day after bandaging. Serum and urine samples were collected during hospitalization (days 1, 2 and 3 serum and day 2 urine). Serum analysis showed increased urea, alanine transaminase, aspartate transaminase, and serum amyloid A values, while creatinine was below the lower limit...
April 21, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28437554/molecular-identification-of-cetaceans-from-the-west-atlantic-using-the-e3-i5-region-of-coi
#16
L H O Falcão, A S Campos, J E P Freitas, M A A Furtado-Neto, V V Faria
Molecular identification is very useful in cases where morphology-based species identification is not possible. Examples for its application in cetaceans include the identification of carcasses of stranded animals in advanced state of decomposition and body parts that are illegally traded. One DNA region that is often used for molecular identification is the Folmer region of the mitochondrial gene cytochrome c oxidase subunit I (COI) (locus 48 to 705 bp). This locus has been used for the identification of several animal species, including whales and dolphins...
April 20, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28425113/environmental-perfluorooctane-sulfonate-exposure-drives-t-cell-activation-in-bottlenose-dolphins
#17
Adam C Soloff, Bethany Jacobs Wolf, Natasha D White, Derek Muir, Sean Courtney, Gary Hardiman, Gregory D Bossart, Patricia A Fair
Perfluoroalkyl acids (PFAAs) are highly stable compounds that have been associated with immunotoxicity in epidemiologic studies and experimental rodent models. Lengthy half-lives and resistance to environmental degradation result in bioaccumulation of PFAAs in humans and wildlife. Perfluorooctane sulfonate (PFOS), the most prevalent PFAA detected within the environment, is found at high levels in occupationally exposed humans. We have monitored the environmental exposure of dolphins in the Charleston, SC region for over 10 years and levels of PFAAs, and PFOS in particular, were significantly elevated...
April 19, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28424314/muscle-biochemistry-of-a-pelagic-delphinid-stenella-longirostris-longirostris-insight-into-fishery-induced-separation-of-mothers-and-calves
#18
Shawn R Noren, Kristi West
The length of time required for postnatal maturation of the locomotor muscle (longissimus dorsi) biochemistry [myoglobin (Mb) content and buffering capacity] in marine mammals typically varies with nursing duration, but it can be accelerated by species-specific behavioral demands, such as deep-diving and sub-ice transit. We examined how the swimming demands of a pelagic lifestyle influence postnatal maturation of Mb and buffering capacity in spinner dolphins (Stenella longirostris longirostris). Mb content of newborn (1...
April 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28424308/spinner-dolphin-scuba-tanks-develop-no-faster
#19
Kathryn Knight
No abstract text is available yet for this article.
April 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28418765/brucella-ceti-infection-in-a-common-minke-whale-balaenoptera-acutorostrata-with-associated-pathology
#20
Nicholas J Davison, Lorraine L Perrett, Claire Dawson, Mark P Dagleish, Gary Haskins, Jakub Muchowski, Adrian M Whatmore
There are three major lineages of marine mammal strains of Brucella spp.: Brucella ceti ST23, found predominantly in porpoises; B. ceti ST26, in pelagic delphinids and ziphiids; and Brucella pinnipedialis ST24/25, predominantly in seals. The isolation of Brucella spp. in mysticetes has been described only in common minke whales ( Balaenoptera acutorostrata ) in Norway and Scotland. We report a third case of Brucella infection and isolation in a minke whale associated with a large abscess. In contrast to the two previous reports that involved isolates of B...
April 18, 2017: Journal of Wildlife Diseases
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