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고양이 3종(FPV, FHV, FCV) 불활화 백신의 효과
이성민,윤인중,최환원,이근좌,이경열,김무강,Lee, Sung-min,Yoon, In-joong,Choi, Hwan-won,Lee, Keun-jwa,Lee, Kyoung-youl,Kim, Moo-kang 대한수의학회 2005 大韓獸醫學會誌 Vol.45 No.3
This study tested the effect of a trivalent (feline panleukopenia; FPV, feline viral rhinotracheitis; FHV, feline calicivirus infection; FCV) inactivated vaccine in cats. The vaccine was tested for the safety in guinea pigs, mice and cats. Also, it was tested for the efficacy in cats. The vaccine was inoculated to cats at 7~9 and 10~12 weeks of age (conventional schedule) and the serological response to vaccination was assessed and was compared to the unvaccinated group. All cats were bled by jugular venipuncture for FPV, FHV and FCV specific serological test (virus neutralizing antibody, VN) at 7~9, 10~12 and 13~15 weeks. After last bleeding, all cats were inoculated with each virus (FPV : orally $2ml\;10^{7.5}\;TCID_{50}/ml$, FHV : nasally $1ml\;10^{7.0}\;TCID_{50}/ml$ and FCV : nasally $1ml\;10^{7.0}\;TCID_{50}/ml$). The Vaccine verified excellent protective effect in guinea pigs, mice and cats. The VN antibody titers of the unvaccinated group cats against FPV, FHV and FCV were <2~16, on the other hand the vaccinated group cats were $512{\sim}{\geq}4096$, 64~1024 and 64~1024, respectively. When all cats were challenged with virulent viruses, the survival rates of the vaccinated group cats were over 80%, while the survival rates of the unvaccinated group cats were less 20%. The typical clinical signs were not observed in the vaccinated group cats, but the typical clinical signs and histopathological lesions were observed in the unvaccinated group cats. As the result of tests, the VN values obtained in this study appeared to be high enough to protect cats from viral challenges. The trivalent (FPV, FHV, and FCV) inactivated vaccine seemed to be very effective, for prevention of feline viral diseases (FPV, FHV, and FCV).
Salmonella Enteritidis 분리주에서의 선발된 불활화 백신균주의 방어효과 및 면역원성
강정무,원호근,김은희,노윤희,최환원,한태욱,Kang, Zheng-Wu,Won, Ho-Keun,Kim, Eun-Hee,Noh, Yun-Hee,Choi, Hwan-Won,Hahn, Tae-Wook 대한수의학회 2011 大韓獸醫學會誌 Vol.51 No.1
Salmonella Enteritidis (SE) has been a major causative agent of food-borne human disease due to consumption of contaminated eggs and poultry meat. To prevent SE infection in poultry, and therefore minimize human infections, vaccination with either killed or live SE vaccine is suggested. We evaluated a newly developed killed bacterin using a representative SE isolate in Korea. Among pool of SE isolates, two highly virulent isolates (the one isolate from chicken, the other from human) were selected by measuring mortality in mouse and chickens administered. The chickens were injected intramuscularly with killed vaccine and were challenged with highly virulent SE strain 3 week after vaccination. The recovered colony count (cfu/g) of spleen and cecal content in the vaccinated groups was reduced compared with those of the unvaccinated control group. The antibody level in the vaccinated groups was higher at 3 week post vaccination. These results indicate that vaccination with killed vaccine was effective in preventing the infection of virulent SE. Further study for a large number of layers should be needed for the effect of egg production, SE shedding in feces, persistence of antibody level.
Salmonella enterica serovars Enteritidis의 온도감수성 변이주 및 폴리인산키나아제 변이주의 제작과 방어효과
김기주,박소연,조영재,곽정연,강정무,김은희,최환원,원호근,노윤희,한태욱,Kim, Kiju,Park, Soyeon,Cho, Youngjae,Kwak, Jeong-Yeon,Kang, Zheng-Wu,Kim, Eun-Hee,Choi, Hwan-Won,Won, Ho-Keun,Noh, Yun-Hee,Hahn, Tae-Wook 대한수의학회 2013 大韓獸醫學會誌 Vol.53 No.4
This study was focusing on evaluating the protection of polyphosphate kinase (ppk) deleted and/or temperature-sensitive (ts) Salmonella Enteritidis (SE) as an attenuated vaccine in chickens. We constructed SEppk, SEts and SEppk::ts mutants and screened those mutants by growth capability in vitro, protection study in mice model and antibody response in chickens. Among the mutants, SEppk::ts-3 was selected because it showed higher growth capability, good protection against highly virulent SE in mice model, and good antibody response in chickens. SEppk::ts-3 also showed good protection against highly virulent SE isolate because it decreased colonization of virulent SE challenge strain in spleen, liver and cecum compared with the non-vaccinated control. The SEppk::ts-3 mutant showed cross-protection against S. Gallinarum (SG) challenge although the its cross-protection rate was a little lower than that of SG9R, a commercial vaccine against SG infection. To use for live attenuated vaccine in chickens, it should further be characterized.
증례 / 국균종을 동반한 알레르기성 기관지폐 아스페르길루스증 1례
송인관(In Kwan Song),정은아(Eun A Chung),차동엽(Dong Youb Cha),최환원(Hwan Won Choi),나동집(Dong Jib Na) 대한천식알레르기학회 2000 천식 및 알레르기 Vol.20 No.5
A 61-year-old woman with a history of asthma and pulmonary tuberculosis was presented with purulent bloody sputum. She was treated as having lung abscess initially, but her signs and symptoms did not improve with traditional therapy. Finally, in the clinical course and laboratory data during hospitalization, she was diagnosed as ABPA with coexistent aspergilloma. Thereafter she was treated with itraconazole for aspergilloma, and corticosteroid for ABPA. The symptoms of hemoptysis and dyspnea were improved. A case of ABPA with coexistent aspergilloma and a brief review of the literature were presented. (J Asthma Allergy Clin Immunol 20: 755-759, 2000)
한국에서 사용 중인 개 파보바이러스 백신의 유효성 확인
양동군 ( Dong Kun Yang ),김명수 ( Myung Soo Kim ),이경우 ( Kyung Woo Lee ),여은주 ( Eun Ju Yeo ),김영은 ( Young Eun Kim ),허원 ( Won Hur ),최환원 ( Hwan Won Choi ),김채현 ( Chae Hyun Kim ),장현 ( Hyun Jang ),오은미 ( Eun Mi Oh ) 한국예방수의학회(구 한국수의공중보건학회) 2011 예방수의학회지 Vol.35 No.2
Canine parvovirus (CPV) type 2a (CPV-2a) has recently been identified as the main genotype circulating in the dog population in South Korea. Although CPV vaccines protect domestic dogs from CPV-2 infection, the efficacy of commercial live or inactivated CPV vaccines against CPV-2a has not been reevaluated. In this study, dogs were immunized with one of 7 commercial CPV vaccines (4 modified live and 3 inactivated vaccines) followed by challenge with CPV-2a strain, KV0901 that had been isolated from naturally infected dog in 2009. All dogs vaccinated twice with 4 commercial modified live CPV vaccines were seroconverted (geometric mean HI titer >190.2) and most of dogs were completely protected against virulent CPV-2a strain infection. The dogs inoculated with 3 commercial inactivated CPV vaccines were also seroconverted and showed a slight loss of appetite and light diarrhea for 4 days after challenge and returned to normal at 5 days post challenge. However, the non-vaccinated dogs revealed the typical clinical signs of CPV infection including haemorrhgic diarrhea. In conclusion, the 4 live CPV vaccines licensed in Korea cross-protected dogs against virulent challenge with CPV-2a and are applicalble to pet dogs for the prevention of CPV infection.
이동욱,정은아,차동엽,최환원,박이병,심성준,한종대,이상미,송인관,류운석 대한내분비학회 1999 Endocrinology and metabolism Vol.14 No.3
Periodic paralysis associated with hyperthyroidism occurs in 2.0% of Graves disease and is characterized by myasthenia or bilateral flaccid paralysis of lower extremity, in some cases, it may be accompanied with cardiac arrhythmias which are mostly due to hypokalemia. The most common type of cardiac arrhythmias associated with hyperthyroidism is sinus tachycardia, 1015% of patients have atrial fibrillation. Rarely, ventricular tachycardia or ventricular fibrillation develop and lead to cardiac arrest in severe case. A 26-year-old man was admitted to the hospital because of weakness of lower extremity. The initial EKG showed ventricular tachycardia. The laboratory results were, TSH 0.08 μU/mL, free T4 4.11 ng/mL, T3 2.88 ng/mL, serum K 1.9 mEq/L. He was diagnosed as ventricular tachycardia associated with hypokalemic thyrotoxic periodic paralysis. His symptoms improved during the treatment with propylthiouracil and potassium replacement. We report a case of thyrotoxic periodic paralysis presenting as ventricular tachycardia with rief review of literatures (J Kor Soc Endocrinol 14:587-591, 1999).