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Skin and coat dogs

Gerald Patrick Dillon, Jason D Keegan, Geoff Wallace, Alexandros Yiannikouris, Colm Anthony Moran
Docosahexaenoic acid (DHA), is an omega 3 fatty acid (n-3 FA) that has been shown to play a role in canine growth and physiological integrity and improvements in skin and coat condition. However, potential adverse effects of n-3 FA specifically, impaired cellular immunity has been observed in dogs fed diets with elevated levels of n-3 FA. As such, a safe upper limit (SUL) for total n-3 FAs (DHA and EPA) in dogs has been established. Considering this SUL, sensitive methods detecting DHA in blood serum as a biomarker when conducting n-3 FA supplementation trials involving dogs are required...
June 2018: Regulatory Toxicology and Pharmacology: RTP
Stephanne L Schwartz, Anthea E Schick, Thomas P Lewis, Diana Loeffler
BACKGROUND: Prolonged sun exposure in high ambient temperatures has been recognized as a cause of thermal burns on the dorsal skin of dogs, termed dorsal thermal necrosis (DTN). HYPOTHESES/OBJECTIVES: To characterize the clinical presentation, histopathology and outcomes of 16 dogs diagnosed with DTN and to identify associated risk factors. ANIMALS: Sixteen dogs diagnosed with DTN. METHODS: Medical records from 2009 to 2016 were reviewed retrospectively...
April 2018: Veterinary Dermatology
R J Carslake, K E Hill, K Sjölander, S F Hii, D Prattley, E Acke
OBJECTIVE: To determine the prevalence of selected canine vector-borne diseases (Leishmania infantum, Anaplasma spp., Ehrlichia canis, Borrelia burgdorferi and Dirofilaria immitis) and endo- and ectoparasites in Samoan dogs presenting for surgical sterilisation and to report on the general health management of the dogs. METHODS: This study was a prospective serological cross-sectional survey. Management data were obtained for 242 dogs by interview with their owners...
December 2017: Australian Veterinary Journal
Nina Küls, Karen J Blissitt, Darren J Shaw, Gudrun Schöffmann, Richard E Clutton
OBJECTIVE: To evaluate skin temperature increase as an early predictive measure for evaluating epidural and femoral-sciatic block success in dogs. STUDY DESIGN: Prospective clinical trial. ANIMALS: A total of 29 dogs undergoing orthopaedic surgery on one hindlimb. METHODS: Dogs were anaesthetized and placed into lateral recumbency with the affected limb uppermost and the coat was clipped. Baseline infrared thermographic images (T0) of the affected limb, of the paw pad of the affected leg and of the ipsilateral paw pad were taken...
September 2017: Veterinary Anaesthesia and Analgesia
Michelle M Zingel, Sherisse A Sakals
This report describes how 2 days of skin stretching facilitated a tension-free closure of single event bilateral caudal superficial epigastric flaps in a dog with severe hindquarter burns. Full healing at all surgical sites with only minor dehiscence and without further treatment or abnormalities of gait or coat regrowth was achieved.
August 2017: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
Johanna Anturaniemi, Liisa Uusitalo, Anna Hielm-Björkman
The aim of this cross-sectional study was to observe whether environmental factors and phenotypic traits are associated with owner-reported skin problems and with veterinary diagnosed canine atopic dermatitis (CAD). Data were collected using the validated online DOGRISK questionnaire. Out of the data that the questionnaire provides for analysis, focus was first turned towards addressing questions regarding 'Atopy/allergy (skin symptoms)' using a total of 8643 dogs: 1585 dogs with owner-reported allergic/atopic skin symptoms and 7058 dogs without...
2017: PloS One
Karen A Moriello, Kimberly Coyner, Susan Paterson, Bernard Mignon
BACKGROUND: Dermatophytosis is a superficial fungal skin disease of cats and dogs. The most common pathogens of small animals belong to the genera Microsporum and Trichophyton. It is an important skin disease because it is contagious, infectious and can be transmitted to people. OBJECTIVES: The objective of this document is to review the existing literature and provide consensus recommendations for veterinary clinicians and lay people on the diagnosis and treatment of dermatophytosis in cats and dogs...
June 2017: Veterinary Dermatology
Sheila Torres, Jonathan B Clayton, Jessica L Danzeisen, Tonya Ward, Hu Huang, Dan Knights, Timothy J Johnson
It has previously been shown that domestic dogs and their household owners share bacterial populations, and that sharing of bacteria between humans is facilitated through the presence of dogs in the household. However, less is known regarding the bacterial communities of dogs, how these communities vary by location and over time, and how cohabitation of dogs themselves influences their bacterial community. Furthermore, the effects of factors such as breed, hair coat length, sex, shedding, and age on the canine skin microbiome is unknown...
2017: PeerJ
Zhanyu Du, Kai Huang, Jiaping Zhao, Xingchao Song, Xiumei Xing, Qiong Wu, Linbo Zhang, Chao Xu
The raccoon dog (Nyctereutes procyonoides) is an important canid fur-bearing animal species worldwide. Chinese raccoon dogs that present a white mutation, especially those with a white coat. Exploring melanin biosynthesis in the hair and skin of raccoon dogs is important for understanding the survival and evolutionary mechanisms of them. In this study, we measured the content of melanin in the hair of two types of raccoon dog and generated stained slices of skin tissue. The results indicated that melanin biosynthesis occurs in the wild-type (W) and white-type (B) raccoon dog skin, although less melanin is produced in B skin...
January 18, 2017: Scientific Reports
Scott S Graves, Andrew Rezvani, George Sale, Diane Stone, Maura Parker, Steven Rosinski, Michele Spector, Bruce Swearingen, Leslie Kean, Rainer Storb
In long-term survivors of allogeneic hematopoietic cell transplantation (HCT), chronic graft-versus-host disease (GVHD) is the major cause of morbidity and mortality and a major determinant of quality of life. Chronic GVHD responds poorly to current immunosuppressive drugs, and while T cell depletion may be preventive, this gain is offset by increased relapse rates. A significant impediment to progress in treating chronic GVHD has been the limitations of existing animal models. The goal of this study was to develop a reproducible comprehensive model of chronic GVHD in the dog...
March 2017: Biology of Blood and Marrow Transplantation
R Bond, K Varjonen, A Hendricks, Y M Chang, H Brooks Brownlie
OBJECTIVES: To gain information on hair loss amongst curly coated retrievers by questionnaire and to define the clinical and pathological features of hair coat abnormalities in affected dogs in the United Kingdom and Sweden. MATERIALS AND METHODS: Questionnaires were completed by members of the Curly Coated Retriever Clubs. Fourteen dogs (six in the United Kingdom, eight in Sweden) were clinically examined and skin/hair samples collected for microscopy and histopathology...
December 2016: Journal of Small Animal Practice
R B P Torrecilha, Y T Utsunomiya, A M Bosco, B F Almeida, P P Pereira, L G Narciso, D C M Pereira, L Baptistiolli, L Calvo-Bado, O Courtenay, C M Nunes, P C Ciarlini
Intensity of peripheral parasite infection has an important role in the transmission of Leishmania spp. from one host to another. As parasite load quantification is still an expensive procedure to be used routinely in epidemiological surveillance, the use of surrogate predictors may be an important asset in the identification of dogs with high transmitting ability. The present study examined whether common clinical and laboratory alterations can serve as predictors of peripheral parasitism in dogs naturally infected with Leishmania spp...
September 15, 2016: Preventive Veterinary Medicine
Katharina Fleck, Georg Erhardt, Gesine Lühken
Leucism is characterized by a complete or partial white skin and hair in combination with pigmented irides, which can be vivid blue or heterochromatic. This is due to a complete or partial lack of melanocytes. The underlying pathogenesis is a disturbed emigration or differentiation of neural crest-derived cells. Therefore, leucistic phenotypes can be associated with defects, which mainly impair sensory organs and nerves. In humans, a well-known example is the Waardenburg syndrome. Leucism-associated disorders were also described in mouse, rat, hamster, rabbit, mink, cat, dog, pig, sheep, llama, alpaca, cattle and horse...
July 2016: Berliner und Münchener Tierärztliche Wochenschrift
Giordana Zanna, Paola Roccabianca, Eric Zini, Sara Legnani, Fabia Scarampella, Silvana Arrighi, Antonella Tosti
BACKGROUND: Dermoscopic studies evaluating noninflammatory, nonpruritic progressive alopecia attributable to pattern alopecia are currently unavailable. HYPOTHESIS/OBJECTIVES: To evaluate the dermoscopic features observed in healthy skin of short coated dogs and compare these findings with those observed in dogs affected by pattern alopecia diagnosed by clinical and dermatopathological examination. ANIMALS: Thirty male and female, healthy, breed matched, young adult, short coated dogs (controls) and 30 male and female, young adult, short coated dogs affected by pattern alopecia...
February 2017: Veterinary Dermatology
Koji Wakame, Hiroshi Okawa, Ken-Ich Komatsu, Akifumi Nakata, Keisuke Sato, Hiroyuki Ingawa, Chie Kohchi, Takashi Nishizawa, Gen-Ichiro Soma
BACKGROUND/AIM: The lipopolysaccharide (LPS)-like compound derived from Pantoea agglomerans (immunopotentiator from Pantoea agglomerans 1 (IP-PA1)) has been used not only as dietary supplement or cosmetic for humans, but also by Japanese veterinarians as an anti-tumor, anti-allergy, "keep a fine coat of fur" and hair growth-promoting functional food for dogs and cats. In the present study, we focused on the hair growth-promoting effects of IP-PA1 on a hair-shaved animal model and its mechanism of action...
July 2016: Anticancer Research
Gustavo A Ramírez, Francisco Rodríguez, Óscar Quesada, Pedro Herráez, Antonio Fernández, Antonio Espinosa-de-Los-Monteros
Merkel cells (MCs) are specialized cutaneous receptor cells involved with tactile sense. Although the distribution of MCs has been extensively studied in humans and rodents, their precise distribution and density throughout skin in the dog has not previously been determined. Knowledge of their distribution could facilitate understanding of their functions. By using of immunohistochemistry, density, and anatomical mapping of the MCs population in the dog skin was determined. Assessment of the MCs innervation was also achieved...
September 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
Julia P Sumner, Cherie M Pucheu-Haston, Natalie Fowlkes, Sandra Merchant
A 5-year-old neutered male brown dachshund dog was presented for a large dorsal cutaneous burn that occurred following direct sunlight exposure outdoors in high ambient temperatures. Although burns are quite common in dogs, full-thickness solar-induced radiation burns are less common and have not been previously reported in animals without a black hair coat.
March 2016: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
Johanna Roine, Liisa Uusitalo, Anna Hielm-Björkman
BACKGROUND: The DOGRISK questionnaire is an internet-based ongoing study of canine nutrition, living environment, and disease. Here we aim to assess the performance of the questionnaire using data from the first three years in relation to some descriptive and disease variables. We used associated questions, official register records, test-retest repeatability, and email/mail contact with questionnaire respondents. RESULTS: Reliability against an official register of gender, season of birth, breed, and results of hip radiography was tested and Cohen's Kappa was between 0...
2016: BMC Veterinary Research
Wanbo Li, Arnaud Sartelet, Nico Tamma, Wouter Coppieters, Michel Georges, Carole Charlier
In the course of a reverse genetic screen in the Belgian Blue cattle breed, we uncovered a 10-bp deletion (c.87_96del) in the first coding exon of the melanophilin gene (MLPH), which introduces a premature stop codon (p.Glu32Aspfs*1) in the same exon, truncating 94% of the protein. Recessive damaging mutations in the MLPH gene are well known to cause skin, hair, coat or plumage color dilution phenotypes in numerous species, including human, mice, dog, cat, mink, rabbit, chicken and quail. Large-scale array genotyping undertaken to identify p...
February 2016: Animal Genetics
Thierry Olivry, Douglas J DeBoer, Claude Favrot, Hilary A Jackson, Ralf S Mueller, Tim Nuttall, Pascal Prélaud
BACKGROUND: In 2010, the International Task Force on Canine Atopic Dermatitis (now International Committee on Allergic Diseases of Animals, ICADA) published the first consensus guidelines for the treatment of atopic dermatitis (AD) in dogs. This is the first 5-year minor update of this document. RESULTS: The treatment of acute flares of AD should involve the search for, and then elimination of, the cause of the flares, bathing with mild shampoos, and controlling pruritus and skin lesions with interventions that include topical and/or oral glucocorticoids or oclacitinib...
August 16, 2015: BMC Veterinary Research
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