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Helicobacter heilmannii 균 감염이 확인된 개에서의 위장염 발생 증례
황철용,윤화영,한홍율 한국임상수의학회 2002 한국임상수의학회지 Vol.19 No.3
A 3-year-old intact female korean pungsan dog showing chronic intermittent vomiting and anorexia was admitted to The Veterinary Medical Teaching Hospital of Seoul National University. The patient had been received antiemetics, antacids or proton pump inhibitor for these symptoms but had not been recovered yet. All results of physical examination, complete blood count, serum chemical analysis, fecal test and radiography were normal. Gastric endoscopic examination was also performed and gastritis with hemorrhage on near antrum region was detected. In PCR assay of bioptic gastric tissues for detecting Helicobacter species infection, Helicobacter heilmannii infection was confirmed. After receiving triple therapy with amoxicillin, metronidazole and omeprazole for 21 days, all symptoms were recovered and had not been occurred again. Helicobacter heilmannii also were not detected.
Canine juvenile cellulites의 진단과 치료 증례
황철용,유종현,강형석,윤화영,한홍율 한국임상수의학회 2002 한국임상수의학회지 Vol.19 No.4
Canine Juvenile cellulitis was diagnosed in 2 puppies hospitalized in Veterinary Medical Teaching Hospital of Seoul National University. Characterized dermatological problems were presents of scale, crust, purlent exudation and alopecia limited on their face. On cytologic examinations of direct impression smears for the lesions, numerous neutrophils and macrophagies were observed. No bacteria and fungus were noted. Treatments with administration of predinisolone and antibiotic orally combined with topical shampoo treatment had good results for the two puppies.
Allegens Causing Atopic Diseases in Canine
황철용,Hyung-SeokKang,Dong-HaBhang,Min-KueKim,윤화영,Hong-RyulHan 대한수의학회 2002 Journal of Veterinary Science Vol.3 No.4
Canine atopic skin disease is seasonal or sometimesnon-seasonal immune-mediated skin disease whichoccurs commonly in Korea. The definite clinical signis systemic pruritus, especially on periocular parts,external ear, interdigit spaces and lateral flank. Fordiagnosis of this dermatitis, complete history takingfollowed by intradermal skin test and serum in vitroIgE test needs to be performed.Allergen selection forthe diagnosis and treatment of atopic dermatitisshould be varied geographically. In this study, withintradermal skin test(IDST) the prevalence of atopicdisease and what allergens are involved in areresearched. Allergens used for IDST included 26allergen extracts from six allergen groups: grasses,trees,weeds,molds,epidermal allergens and environ-mental allergens. The number of allergens was 42 inwhich the positive and negative controls areincluded.The most common positive allergen reactionwas the house dust mites on IDST(22/35, 63% ). Theother positive allergen reactions were to flea(3/35,9% ), molds(1/35, 3% ), house dusts(2/35, 6% ), feathers(1/35, 3% ), cedar/juniper(1/35, 3% ), timothy grass(1/35,3% ) and dandelion(1/35, 3% ). In this study, the mostprevalent allergen causing atopic dermatitis in dogsin Korea was the house dust mites followed by theflea.
Mediastinal lymphoma in a young Turkish Angora cat
황철용,서경원,최을수,배보경,박미선,김대용,윤화영 대한수의학회 2006 Journal of Veterinary Science Vol.7 No.2
An 8-month old intact male Turkish Angora cat was0areferred to the Veterinary Medical Teaching Hospital0a(VMTH), Seoul National University, for an evaluation of0aanorexia and severe dyspnea. The thoracic radiographs0arevealed significant pleural effusion. A cytology evaluation0aof the pleural fluid strongly suggested a lymphoma0acontaining variable sized lymphocytes with frequent mitotic0afigures and prominent nucleoli. The feline leukemia virus0aand feline immunodeficiency virus tests were negative.0aThe cat was euthanized at his owner's request and a0anecropsy was performed. A mass was detected on the0amediastinum and lung lobes. A histopathology evaluation0aconfirmed the mass to be a lymphoma. Immunohistochemistry0arevealed the mass to be CD3 positive. In conclusion, the0acat was diagnosed as a T-cell mediastinal lymphoma.
Ehrlichia and Borrelia spp. Infection in German Shepherd Dogs in Korea
황철용,서상호,강준구,윤화영,채준석 한국임상수의학회 2011 한국임상수의학회지 Vol.28 No.2
The presence of the tick-borne pathogens Ehrlichia and Borrelia in German Shepherd dogs in Korea was determined by enzyme-linked immunosorbent assay (ELISA) and polymerase chain reaction (PCR). A total of 291 dogs were randomly selected from five Korean provinces from October 2005 through September 2006. The seroprevalence of antibodies to canine Ehrlichia and Borrelia agents detected by ELISA (Snap® 3Dx® Test, IDEXX Laboratories) was 7.56% (22 dogs) and 1.72% (5 dogs) respectively, throughout the country. Positive antibodies against both pathogens were detected in two dogs (0.69%). The provincial distribution of seroprevalence against Ehrlichia was1.28% (1 of 78) in Gyeonggi-do, 12.64% (11 of 87) in Gangwon-do, 9.76% (4 of 41) in Chungcheong-do, 8.93% (5 of 56) in Gyeongsang-do, and 3.45% (1 of 29) in Jeolla-do. According to PCR analysis, Ehrlichia chaffeensis target DNA was amplified in 3.09% (9 of 291 dogs) of blood samples, 2.41% (7 of 291) from Gangwon-do and 0.69% (2 of 291) from Chungcheong-do. The oligonucleotide sequences (SNU-EC3 and SNU-EC5) from the PCR fragment examined in Korea were closely related to E. chaffeensis isolated from the tick Haemaphysalis longicornis, in China and the state of Arkansas in the US. Based on these results, the presence of E. chaffeensis infection was identified in German Shepherds being bred in Korea. These results bring to light the importance of paying close attention to tick-borne infections such as Lyme disease during clinical diagnosis. This infectious disease should be included as a differential diagnosis for patients who participate in outdoor activity from spring to fall or who have thrombocytopenia or leucopenia.
생분해성 iodophor microsphere 함유 유두침지 소독제의 건유기 젖소에서의 유방내 신규감염 예방 효과
황철용,김종민,윤화영,한박,한홍율,Hwang, Cheol-Yong,Kim, Jong-Min,Youn, Hwa-Young,Han, Bo,Han, Hong-Ryul 대한수의학회 2004 大韓獸醫學會誌 Vol.44 No.1
1% iodophor loaded microspheres of PLGA (Poly[DL-Lactide-co-Glycolide]) were prepared by solvent evaporation method and were applied to the cows on dry period for evaluating it's preventive effects on intramammary infections. The morphology of the microspheres were evaluated using scanning electron microscopy and their releasing patterns were investigated. On investigating idophor releasing patterns of the microsphere, burst releasing pattern was detected until 2 days after in vitro incubation and sustained releasing was observed until 4 weeks. In field trial of teat dipping solution containing idophor loaded microspheres in dry cows showed significant preventive effects of intramammary infection caused by S. aureus, S. agalactiae, coagulase negative Staphylococci and coliform bacteria (p<0.05).