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조규봉(Kyu-Bong Cho) 한국엔터테인먼트산업학회 2014 한국엔터테인먼트산업학회논문지 Vol.8 No.4
한탄바이러스가 국내에서 최초로 분리된 후, 한탄바이러스에 의한 신증후출혈열은 최근에도 매년 다수의 환자가 발생하고 있지만, 감염위험군으로 분류된 군인에 대한 연구가 전무하다. 따라서 신증후출혈열 만연지역에 근무하는 군인들의 한탄바이러스에 대한 감염위험성을 파악하고자 연령별 및 성별에 따른 항체 양성률을 비교 분석하였다. 총 126명의 혈청에 대하여 간접형광항체법으로 한탄바이러스의 항체양성률을 조사한 결과 27.8%의 항체양성률을 나타내었으며, 연령대별로는 30대의 양성률이 48.1%로 가장 높았다. 남·여 군인의 경우 남성군인이 32.25%로 여성 13.04%보다 높게 나타났으며, 남·여 모두 30대에서 가장 높은 항체양성률을 나타냈다. 이는 남·여 모두 군의 특성상 가장 야외활동이 많고 복무기간이 긴 30대가 한탄바이러스에 대한 노출빈도가 높다는 것을 의미하며 특히 군임무의 대부분을 야외에서 오랜기간동안 수행했던 30대 남성군인이 감염에 대한 위험성이 가장 큰 것을 알 수 있었다. 따라서 군인들에 대한 한탄바이러스의 감염 방지 대책과 특히, 30대의 남성군인에대한 지속적인 모니터링이 필요할 것으로 사료된다. Since Hantaan viruses has been isolated from Korean field mouse, Apodemus agrarius, hemorrhagic fever with renal syndrome (HFRS) caused by Hantaan viruses consistently occurs every year in Korean. However, investigation of hantaan virus infection against soldiers, who risk of infection group, almostly has not been studied. In this study, we assess the sero-epidemiological patterns of HFRS of soldiers living in the outbreak area for analysis the risk of infection. To analysis the sero-epidemiological patterns of HFRS, we examined to sera of 126 soldiers according to sexual and age by indirected immunofluorescence assay. Out of 126 sera samples tested, 35 sera samples(27.8%) were reveled sero-positive to Hantaan virus and the highest sero-positive rate observed in thirty years group to 48.1%. The sero-positive rate of males was detected to 32.25%, and females to 13.04%. Therefore, sero-positive rate of males significantly higher than that of females and also detected to the highest sero-positive rate in thirty years group both males and females. This results suggested that thirty years group of soldiers can be infected by Hantaan virus with higher frequency, because of the long period of service and various outdoor activities. Therefore, continuous research for higher infection risk group of soldiers will be performed to reduce of infection risk of Hantaan virus.
박쥐에서 분리한 Hantavirus의 병리조직학적 소견
조규봉 ( Kyu Bong Cho ),강치환 ( Chee Hwan Kang ),최승구 ( Seung Gu Choi ) 대한임상검사과학회 1999 대한임상검사과학회지(KJCLS) Vol.31 No.2
A few hundred cases of hemorrhagic fever with rena1 syndrome (HFRS) have been caused by Hantaan virus and related viruses of Genus Hantavirus occur annua1y in Korea. It has been known that field and sylvatic mice, Apodemus agrarius and urban rats, Rattus norvegicus and R. rattus constitute the anima1-host reservoir in Korea. Recently, we have detected antibodies against Hantan virus in the sera of bats and isolated a Hantavirus(CUMC-92B48 virus) from lung tissue of a bat. We a1so tried to examine pathology of the bat-originated virus in suck-ling mice. In the pathologica1 findings of suck1ing mice inocu1ated intracerebra11y with the bat -originated virus, it was characterized by foca1 interstitia1 edema combined with nerve fiber, nucler degeneration and perivascu1ar lymphocyte infiltration in the brain. It was shown that congestion, hemorrhage and septa1 thickening in the lung, lymphocyte infi1tration to intra10bule and foca1 necrosis in hepatocyte, appearance of some ba1100ning degenerative cells in liver, and foca1 destroyed lymphoidfollic1es and marked congestion in spleen.
한국 박쥐의 한타바이러스 감염에 대한 혈청면역학적 연구
박은병,조규봉,박철희,이연태,Park, Eun-Byung,Cho, Kyu-Bong,Park, Chul-Hee,Lee, Yun-Tai 대한미생물학회 1996 Journal of Bacteriology and Virology Vol.26 No.1
To understand whether the bats inhabiting in Korea play role as hosts harboring Hantavirus that cause acute febrile diseases, a total number of 802 bats of 9 species were collected from seven provinces in Korea from 1989 to 1995 and tested for the presence of antibodies to Hantavirus by means of immunofluorescent antibody (IFA) technique. The results are summarized as follow. 1. Total 802 captured bats were classified into 9 different species with the following distribution. They were Rhinolophus ferrumequinum, Eptesicus serotinus, Miniopterus sehreibersii, Vespertilio superans, Myotis mystatinus, Murina leucogaster, Myotis formosus, Myotis macrodactylus and Plecotus auritus with numbers and rates of 423 (52.74%), 291 (36.28%), 47 (5.86%), 28 (3.49%), 8 (1.00%), 1 (0.12%) and 1 (0.12%), respectively. The predominant species of the bats was Rhinolophus ferrumequinum with 52.74% of the captured. 2. Among 9 species of bats, species of Rhinolophus ferrumequinum and Eptesicus serotinus were positive with Hantavirus antibody of strain numbers 76-118. The rate of antibody positive was 3.78%. 3. The seasonal differences of Hantavirus antibody in 802 bats tested were 5.83%, 4.17%, 3.67% and 0.64% in winter, spring, summer and autumn, respectively. Again the highest viral antibody prevalence was detected in winter. It could be concluded through the study that certain species of bats inhabiting in Korea play a definite role as the host animals of certain species of Hantavirus.
환경시료 중 $^{90}Sr$의 분석을 위한 분리농축법 연구
원미숙,조규봉,윤장희,이대원,심윤보,Won, Mi Sook,Cho, Kyu Bong,Yoon, Jang Hee,Lee, Dae Won,Shim, Yoon Bo 한국분석과학회 2001 분석과학 Vol.14 No.1
환경 시료인 토양, 우유, 해수, 해조류, 어패류, 솔잎 및 해저토 중에 존재하는 $^{90}Sr$의 농도를 결정하기 위한 새로운 형태의 분리농축법을 확립한 후 ICP-AES를 사용하여 각 분석과정을 검토하였다. 처리 과정을 단축시킨 발연 질산법 및 이온교환수지법을 혼합한 새로운 형태의 분석과정으로 $^{90}Sr$의 농도를 정량한 결과 효과적으로 Ca를 완전히 제거할 수 있었으며, 발연질산법 만을 사용했을 경우보다 스트론튬의 회수율이 약 10% 이상 높게 나타났다. 이 방법은 토양, 우유, 해조류, 어패류, 솔잎, 및 해저토 등 환경 시료들 중의 $^{90}Sr$ 결정에 적용할 수 있음을 확인하였다. 분석 결과, 토양 중의 $^{90}Sr$ 농도가 가장 높았으며 모든 시료 중의 $^{90}Sr$의 농도는 환경 기준치 이하로 나타났다. New process to determine $^{90}Sr$ in the environmental samples was established by investigating the existing methods. The environmental samples included soil, milk, seaweed, fishes and clams, pine needles, and marine sediment. Using the developed method combined with fuming nitric acid and ion exchange resin, which could be reduced the treatment step, we could be removed Ca effectively for the determination of $^{90}Sr$. The recovery yield of $^{90}Sr$ in this method was 10% higher than those of using the fuming nitric acid only. This method could be applied to all environmental samples we choose. The content of $^{90}Sr$ in soil was the highest value in the tested environmental samples.
한국에 서식하는 조류와 다람쥐의 Hantavirus 감염에 대한 생태학적 연구
이연태,박철희,조규봉,송재옹,박은병,최승구,Lee, Yun-Tai,Park, Chul-Hee,Cho, Kyu-Bong,Song, Jae-Ong,Park, Eun-Byung,Choi, Sung-Gu 대한미생물학회 1996 Journal of Bacteriology and Virology Vol.26 No.1
Hantavirus is the etiologic agent of hemorrhagic fever with renal syndrome (HFRS). It has been known that the natural reservoirs of Hantavirus are not only field mice but also other animals in parts of the world. In this study, to research on the host range of Hantavirus, immunofluorescent antibody against Hantavirus was investigated in wild birds from 1991 to 1992, duck from 1991 to 1992 and squirrels (Tamias sibiricus) in 1990 in Korea. The results were as follows: 1. Of total 179 wild birds of 14 species, Emberiza elegans elegans and Passer montanus dy-bowsky were antibody positive. The positive rates were 3.92% (2 out of 51) and 1.64% (1 out of 61), respectively. 2. The antibody titers of wild birds were 1:16 and 1:64 in Emberiza elegans elegans, 1:16 in Passer montanus dybowsky. 3. The positive rate of antibody in ducks was 2.3% (3 out of 129). 4. The positive rate of antibody in squrrels was 48.10% (38 out of 79). According these results, we newly showed that passer montanus dybowsky, domestic ducks and Tamias sibiricus possessed the antibody against Hantavirus.
상황버섯(Phellinus linteus) 자실체 분비물의 면역활성 및 항암효과
맹은호,이연태,조규봉,홍승희,Maeng, Eun-Ho,Lee, Yun-Tai,Cho, Kyu-Bong,Hong, Seung-Hee 대한면역학회 2002 Immune Network Vol.2 No.2
Background: The chemical characteristics of the exo-secretion from Phellinus linteus (referred to as exo-secretion) including the compositions of amino acids and monosaccharides were investigated. In addition, cytotoxicity of the exo-secretion on 5 tumor cell lines derived from human cancers and its antitumor activity against ascitic sarcoma-180 cells were examined. Methods: The antitumor activity of exo-secretion from Phellinus linteus was determined by measuring parameters including tumor weight, life span of mice, chemotatic activity of leukocytes, counts of immune cells, and activity of cytokines. Results: The exo-secretion from Phellinus linteus showed no direct cytotoxicity to the five tumor cell lines tested, but it had a strong antitumor activity against sarcoma-180 cells in ICR mice as measured by tumor weight and life span of mice. The exo-secretion stimulated the chemotaxis of leukocytes and production of immune cells and cytokines. Conclusion: These results suggest that the exo-secretion from Phellinus linteus do not act as a direct cytotoxic substance to cancer cells but as an immunomodulator.
PCR-RFLP에 의한 대중목욕탕 내 Nontuberculous Mycobacteria의 동정
최승구 ( Seung Gu Choi ),송운흥 ( Woon Heung Song ),강치환 ( Chee Hwan Kang ),조규봉 ( Kyu Bong Cho ),이재상 ( Jae Sang Lee ),이장호 ( Jang Ho Lee ),김성일 ( Sung Il Kim ),지수일 ( Soo Il Jee ) 대한임상검사과학회 2008 대한임상검사과학회지(KJCLS) Vol.40 No.1
Thirty two of bathroom water samples from public bathroom in Seoul areas were examined using acid-fast staining, Lowenstein-Jensen (L-J) medium culture and PCR-restriction fragment length polymorphism (PCR-RFLP). In 6.25% (2/32) bathroom water samples, acid-fast bacilli were detected by AFB stain, and in 21.9% (7/32) bathroom water samples, acid fast bacilli grew on L-J media. Of them, six acid-fast bacilli were identified as Mycobacterium avium, and the other AFB as Mycobacterium szulgai by PCR-RFLP. These results are suggested that accidental nontuberculosis mycobacterial infection to a weakness person will be possible in public area.