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Mycobacterium bovis infection in a wild sow (Sus scrofa): the first case in Korea
구복경,전보영,김재명,장영부,Yunho Jang,So Yoon Yu,김지로,Oun Kyung Moon,Suk-Chan Jung,Min Kwon Lee,Tae Nam Jeong 대한수의학회 2016 Journal of Veterinary Science Vol.17 No.3
Mycobacterium (M.) bovis causes tuberculosis and has a broad host range, including humans, livestock, and wild animals. M. bovis infection of wild boar has been reported in several European countries. We report here the first case of M. bovis infection in a domesticated wild sow in Korea. Granulomatous and necrotizing lesions with small numbers of acid-fast bacilli were observed in nodules of the lung of wild sow. Furthermore, the M. bovis isolate from the wild sow had spoligotype SB0140 and a novel MIRU-VNTR allelic profile, which is not found in cattle and deer in Korea.
Leptospira canicola 실험적 감염햄스타의 조직절편내 면역조직화학적 균체항원검출
구복경,김순복,서정향,문윤경,정석찬,박정문,박용호,문진산,Ku, Bok-gyeong,Kim, Soon-bok,Sur, Jung-hang,Moon, Oun-kyong,Jung, Suk-chan,Park, Jung-moon,Park, Yong-ho,Mun, Jin-san 대한수의학회 1996 大韓獸醫學會誌 Vol.36 No.2
The present study was done to detect Leptospira canicola antigens in paraffin sections from experimentally infected hamsters with PAP method. The anti-Leptospira canicola serum used as first antibody was prepared by immunizing rabbits with Leptospira canicola. Positive reactions were detected in interstitium, tubular epithelial cells and glomerulus of the kidney, and in the hepatic sinusoid. With PAP method, leptospiral antigens were detected at the 48 hours after bacterial infection, but isolation, silver stain, and dark field microscopic examination of the samples did 48 hours later than PAP method. The results suggested that PAP method is considered as a reliable tool for confirmative diagnosis of this disease.
구복경,전보영,Jae-Myung Kim,장영부,이혜영,Jae Young Choi,Suk Chan Jung,Hyang-Mi Nam,Hun Park,조상래 대한수의학회 2018 Journal of Veterinary Science Vol.19 No.1
Bovine tuberculosis is a chronic contagious disease responsible for major agricultural economic losses. Abattoir monitoring and trace-back systems are an appropriate method to control bovine tuberculosis, particularly in beef cattle. In the present study, a trace-back system was applied to bovine tuberculosis cases in Korean native Hanwoo beef cattle. Bovine tuberculosis was detected in three index beef cattle during abattoir monitoring in Jeonbuk Province, Korea, and the original herds were traced back from each index cow. All cattle in each original herd were subjected to tuberculin skin test. The positive rates in the tuberculin skin test were 64.6% (62 of 96), 4.8% (2 of 42), and 8.1% (3 of 37) at farms A, B, and C, respectively. On post-mortem examination of 56 tuberculin-positive cattle, 62% had granulomatous lesions, and Mycobacterium bovis was cultured from 40 (71.4%) of the cattle. Molecular typing by spoligotyping and the mycobacterial interspersed repetitive unit-variable-number tandem repeat assay revealed the genotype of the M. bovis strains from the index cattle were same as the M. bovis genotype in each original herd. The results suggest that tracing back from index cattle to the original herd is an effective method to control bovine tuberculosis in beef cattle.
PCR법을 이용한 국내 분리 캠필로박터균에서 Guillain-Barre Syndrome 관련 galE 유전자 검출에 관한 연구
구복경 ( Bok Kyung Ku ),김혜지 ( Hae Ji Kim ),김영일 ( Young Il Kim ),최정수 ( Jung Soo Choi ),박미영 ( Mi Young Park ),권진욱 ( Jin Wook Kwon ),김용환 ( Yong Hwan Kim ),김종현 ( Jong Hyun Kim ),이영주 ( Young Joo Lee ),김은경 ( E 한국수의공중보건학회 2010 예방수의학회지 Vol.34 No.3
Guillain-Barre syndrome (GBS) is the most common cause of acute flaccid paralysis and autoimmune polyradiculo-neuropathy. Campylobacter jejuni is the most commonly identified infectious trigger for GBS. A sialic-acid containing lipopolysaccharide (LPS) of Campylobacter is thought to be involved in the triggering of GBS. The galE (UDP-galactoset-epimerase) gene of Campylobacter spp. is involved in the synthesis of LPS. In this study, we detected the galE gene in Campylobacter spp. responsible for triggering the onset of GBS. The PCR assay detected the presence of the gene in 14 of the 25 (56%) Campylobacter isolates from domestic chicken, 20 of the 28 (71.4%) Campylobacter isolates from imported chicken and 50 of the 51 (98%) Campylobacter isolates from human clinical samples. Also, the specific 497-bp region of galE sequence in Campylobacters responsible for triggering the onset of GBS was amplified from GBS patient. These results could provide evidence of the first GBS-related C. jejuni infection in Korea.
국내 발생 구제역 바이러스(foot-and-mouth disease virus)의 특성과 전파력에 관한 연구
서정향,신진호,구복경,최강석,권병준,손현주,고영준,최정업,권창희,김종염,안수환,김기석,문운경,김재훈,최상호,이홍길,황의경,김순복,강신석,김옥경,Sur, Jung-hyang,Shin, Jin-ho,Loubroth, Juan,Yeh, Max,Ku, Bok-kyung,Choi, Kang-seuk,Kweon, Byung-joon,Sohn, Hyun-joo,Ko, 대한수의학회 2000 大韓獸醫學會誌 Vol.40 No.4
A study was conducted to determine the susceptibility of swine to Korean foot-and-mouth disease virus (FMDV; subtype O, isolated from Chungju province) in April, 2ooo. One holstein cow was inoculated intradermolingually with suspension of homogenized tissue from a Korean native cow naturally infected with Korean FMDY. Infected cow was housed with one susceptible cow and one susceptible pig (contact sentinels). Four additional susceptible pigs were housed in the same room but caged separately (non-contacted sentinels). The contacted pig and cow as well as non-contact pigs developed typical clinical signs after 2, 3, and 7 days post exposure, respectively. We compared neutralizing antibody from the animals to FMDV $O_1$ Lombardy, O Taiwan, $O_1$ Campos, and $O_1$ Manisa after 0, 4, 7, 10, 14, 21, 28 days post challenge and post-exposure. The highest viral neutralization titer could be interpreted that serotype O Korea (Chungju isolate) is antigenically more related to $O_1$ Manisa. In addition, immunohistochemistry was used to further characterize Korean FMDV from tissues of infected pigs. Korean FMDV antigen was observed in the tongue, hoof, esophagus, and tonsil tissues of sentinel pigs. These findings suggest that Korean FMD virus isolated from cattle can be rapidly transmitted to pigs both directly and indirectly contrast field observation in which only cattle were clinically ill.
문진산,주이석,구복경,김종염,김덕원,박용호,한태욱,Moon, Jin-san,Joo, Yi-seok,Ku, Bok-gyeong,Kim, Jong-yeom,Kim, Duck-won,Park, Yong-ho,Hahn, Tae-wook 대한수의학회 1998 大韓獸醫學會誌 Vol.38 No.1
The effects of chitosan on mastitis in lactating holstein cows were evaluated. Fifty six cows with intramammary infection(IMI) from nine farms were selected and the cows were fed with diets which contained 15~20g chitosan per day for 5~7 days. The milk samples were obtained from cows at 7 days and 14 days after administration to determine effect of the curing of mastitis and the reduction of somatic cell counts(SCC). The average value of SCC levels in quarter milk from the cows administrated with chitosan significantly decreased up to 31.8% and 47.7% at 7 and 14 days, respectively(P<0.05). The cure rates of chitosan for Stapylococcus aureus, coagulase-negative Staphylococci, Streptococci spp, other gram positive bacteria and coliforms were 30.4, 42.8, 33.3, 66.6 and 54.5 % respectively. Twenty three out of 64 cases were cured by feeding with chitosan. The results showed that administration of chitosan could reduce SCC in milk and improve cure rates of bovine mastitis caused by microorganisms. The further studies will be pursued to study on the mechanism of chitosan in the immune responses of cows with mastitis.