• 대한바이러스학회지
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• 제27권2호
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• pp.257-260
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• 1997

Adenoviruses are icosahedral virions containing double-stranded linea DNA. They are 70 nm to 90 nm in diameter and capsid is composed of 252 capsomeres. Several members of this group, including types commonly associated with respiratory disease in man, are capable of producing malignant tumors in young hamsters and a few types have been shown to be oncogenic in young rat. Previous report involving effect of caffein on transformation induced by Adenovirus type 12 [9] has been carried out. The present report represents a continuation of previous study. To obtain evidence concerning the effect of MNNG (N-methyl-N'-nitro-N-nitroguanidine) on transformation, investigation of adenovirus type 12 of this group was undertaken. For practical consideration it was desirable to investigate the effect of MNNG on the adenovirus type 12 induced transformation in L cell. Results were as following 1. Adeno virus type 12 induced transformation was enhanced in the presence of MNNG. 2. Yields of adeno type 12 virus in L cell were slightly inhibited by treatment of MNNG.

• 대한바이러스학회지
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• 제26권2호
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• pp.269-272
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• 1996

Adenovirus group consists of over 100 related viruses which have been isolated from respiratory or gastro-intestinal tract of primate, cattle, dog and mice. Approximately 40 serologic types of adenovirus producing a variety of human respiratory and conjunctival infections were identified. Adenoviruses are icosahedral virions containing double-stranded linea DNA. They are 70nm to 90nm in diameter and each of capsid is composed of 252 capsomeres. Several numbers of this group, including types commonly associated with respiratory disease in man, are capable of producing malignant tumors in young hamsters and a few types have been shown to be on-cogenic in young rat. Previous report involving effect of Hormone on replication of adenovirus(9) has been carried out. The present report represents a continuation of previous study. To obtain evidence concerning the effect of caffeine on the transformation, investigation of adenovirus type 12 of this group was undertaken. For practical consideration it was desirable to investigation of the effect of caffeine on the adenovirus type 12-induced transformation in L cell. Results were as follows; 1. Adenovirus type 12-induced transformation was inhibited in the presence of caffeine. 2. Yields of adeoovirus type 12 in L cell were slightly inhibited by treatment of caffeine.

• Journal of Life Science
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• 제10권2호
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• pp.17-20
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• 2000

Adenovirus which is an important infectious viral agent in respiratory and alimentary tract was investigated in Pusan, 1999. Fifteen cases of adenovirus were detected from stools and throat swabs of suspected patients. Two cases of enteric adenovirus were detected from a 5 years old boy and a 6-month-old boy. Thirteen cases of respiratory adenoviruses were detected from children aged under 10 years old and one adult. From respiratory specimens, 1 case of adenovirus type 2, 1 case of type 5, and 11 cases of type 3 were found. Enterotype 41 was detected from fecal preparations. Adenoviruses appeared mostly during winter months, January, February and December. Adenovirus showed a slowly progressive cytopathic effect on HEp-2 cells, Vero cells and BGM cells at 37$^{\circ}C$, in a 5-7% $CO_{2}$ incubation. An electron microscopic observation exhibited non-enveloped icosahedron with a diameter of 70nm. No significant differences on cytopathic effect and morphological features have been found from specimens of either alimentary tract or respiratory secretions.

• Pediatric Infection and Vaccine
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• 제7권1호
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• pp.94-107
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• 2000

목 적 : 우리나라 하기도 감염 소아에서 분리되는 아데노바이러스 각 혈청형의 유행 양상과 아데노바이러스에 의한 하기도 감염의 임상적 특징을 알아보고자 한다. 방 법 : 1990년 11월부터 1998년 2월까지 호흡기 감염증상을 주소로 서울대학교 어린이병원 소아과를 내원한 환아들을 대상으로 비흡인물을 채취하여 단일 클론항체를 이용한 면역 형광염색법 및 HEp-2 세포주를 이용한 바이러스 배양법으로 87례의 아데노바이러스에 의한 호흡기 감염증을 진단하고, 분리된 바이러스는 중화 항체 시험으로 혈청형을 결정하였다. 아데노바이러스 감염증이 확인되고 혈청형 결정 시험이 시행된 84명의 환아 중에서 혼합감염과 병록 고찰이 불가능한 환아들을 제외한 74명의 환아들의 병록 고찰을 하였다. 결 과 : 혈청형 검사가 시행된 84례 중에 7형이 36례로 가장 많았다. 그리고 나머지는 혈청형 1은 3례, 혈청형 2는 13례, 소아 혈청형군이 13례, 기타 혈청형군이 12례였다. 혈청형 7형은 95년 10월부터 97년 초까지 유행성으로 발병하였고 그 외의 다른 혈청형은 7형이 유행할 당시에는 거의 분리되지 않았다. 그 외의 기간 동안에는 98년을 제외하고는 7형은 분리되지 않았고 주로 2형과 3형이 연중 산발적으로 발생하였다. 환아의 평균 연령은 1년 11개월로 주로 6개월에서 5세 사이였고 6개월 이하의 영아도 14례 있었다. 아데노바이러스에 의한 폐렴의 흉부방사선 소견은 폐나 폐문 주위의 침윤, 과환기, 무기폐, 폐경화 등의 다양한 형태로 나타났으며, 정상소견도 있었다. 그러나 7형의 경우는 세균성 폐렴과 구별이 어려울 정도의 병변으로 폐경화와 늑막 삼출, 그리고 대엽성이나 소엽성 무기폐 등이 관찰되었고 양측 폐야를 동시에 침범한 경우도 7형에서 20례(55%)에서 있었다. 호흡곤란으로 인공호흡기 치료를 받는 경우는 혈청형 7의 36례 중의 14례(38.9%)였다. 사망한 환자는 총 9명(12%)이었고 그 중 호흡 부전으로 사망한 경우는 7명(9.4%)였다. 그 중 7례는 혈청형 7이 분리되었고 소아 혈청형군 1례와 2형이 1례씩 있었다. 결 론 : 아데노바이러스는 주로 6개월에서 5세사이의 소아에서 심한 호흡기 감염을 일으키며, 특히 혈청형 7형에 의한 심한 폐렴이나 선행질환으로 선선청 심질환이나 면역 기능이 저하된 경우 혹은 만성 폐질환을 앓는 경우에 사망과도 연관되는 것으로 생각된다. 과거 5년간 관찰되지 않던 7형에 의한 폐렴은 유행성으로 많은 정상 환아에서도 사망이나 심각한 후유증을 초래하였으므로 앞으로 이에 대한 진단과 치료 뿐만 아니라 예방에 대한 연구를 더욱 진행시켜야 할 것으로 생각된다.

• Pediatric Infection and Vaccine
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• 제7권1호
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• pp.108-112
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• 2000

목 적 : Rotavirus와 adenovirus는 영유아에서 급성장염을 유발하는 주요 원인인데 한국에서 adenovirus에 관한 연구 논문이 적어 저자들은 최근에 발생한 adenovirus와 rotavirus 장염의 분포를 조사하여 향후 질병 예방 및 발생 정보에 도움을 얻고자 연구 분석하였다. 방 법 : 1998년 3월에서 1999년 6월까지 대상으로 건국의대 부속병원에 급성 위장관염으로 입원 또는 통원 치료를 한 143명을 대상으로 하였다. 결 과 : 전체 환아 143명중 rotavirus 양성은 53명으로 37%의 양성률을 보였으며 1999년 1월에서 3월 사이의 초봄에 가장 많이 발생하였으며 2세 이하에서 가장 많이 발생함을 보였고 2~4세 사이에서도 16%의 양성률을 보였으며 9월에 전체 24례중 6례로 가장 많이 검출되었고 2개월에서 2세 사이에 많은 발생을 보였다. Adenovirus와 rotavirus에 동시 검출된 경우는 7명(5%)이였다. 결 론 : Rotavirus 장염은 1월부터 3월에 가장 많은 발생 빈도를 보여서 겨울 및 초봄에 유행시기를 보였으며 adenovirus는 9월에 가장 많이 검출 되었다. Rotavirus와 adenovirus의 발생의 중간 나이 분포는 각각 1세 4개월, 1세 3개월의 분포를 보였다.

• 한국동물학회지
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• 제17권2호
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• pp.51-56
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• 1974

生後 24시간 이내의 어린 Armenian hamster와 Chinese hamster의 體內에 adenovirus type 12를 注入할 경우, 전자에서는 27일, 후자에서는 30$\\sim$45일이 지난후 腫瘍모양을 한 작은 細胞傀가 생김을 보았다. 이들 細胞傀는 다른 個體에 移植이 가능하며, 上皮細胞와 같은 모양을 하고 있다. 本實驗에서 얻어진 57개의 細胞傀 중에서 6개만이 細胞培養 되었으며 14$\\sim$20회 정도 繼代培養을 계속하는 동안에 染色體의 변동은 없이 細胞의 모양이 纖維狀으로 변하였다. 이들 細胞가 上皮細胞 모양을 할 때는 腫瘍性이며, T-抗體도 발견되었는데, 纖維狀으로 변하게 되면 腫瘍性을 나타내지 않으며, T-抗體도 찾아 볼 수 없다. 다른 2개의 細胞傀를 上皮細胞 모양일 때 SV40 바이러스로 처리하면 바로 纖維狀細胞로 변한다. 이들 細胞에는 adenovirus에 의한 T-抗體는 없으나, SV40의 T-抗體가 존재하며, 다른 hamster에 移植할 경우 皮腫 모양의 細胞傀를 이룬다.

• Journal of Microbiology
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• 제44권2호
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• pp.162-170
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• 2006

Oysters are known to be carriers of food-born diseases, but research on viruses in Korean oysters is scarce despite its importance for public health. We therefore tested oysters cultivated in Goheung, Seosan, Chungmu, and Tongyeong, for viral contamination using cell culture and integrated cell culture PCR (ICC-PCR) with Buffalo green monkey kidney (BGMK) and human lung epithelial (A549) cells. Additional screens via PCR, amplifying viral nucleic acids extracted from oysters supplemented our analysis. Our methods found 23.6 %, 50.9 %, and 89.1 % of all oysters to be positive for adenoviruses when cell culture, ICC-PCR, and direct PCR, respectively, was used to conduct the screen. The same methodology identified enteroviruses in 5.45%, 30.9%, and 10.9% of all cases. Most of the detected enteroviruses (81.3%) were similar to poliovirus type 1; the remainder resembled coxsackievirus type A1. A homology search with the adenoviral sequences revealed similarities to adenovirus subgenera C (type 2, 5, and 6), D (type 44), and F (enteric type 40 and 41). Adenovirus-positive samples were more abundant in A549 cells (47.3%) than in BGMK cells (18.2 %), while the reverse was true for enteroviruses (21.8 % vs. 14.5 %). Our data demonstrate that Korean oysters are heavily contaminated with enteric viruses, which is readily detectable via ICC-PCR using a combination of A549 and BGMK cells.

• 대한수의학회지
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• 제35권1호
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• pp.75-85
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• 1995

An indirect immunofluorescent antibody test was applied to survey the antibody prevalence on five canine viruses including canine distempervirus(CDV), canine parvovirus(CPV), canine coronavirus(CCV), canine adenovirus type-2(CAV-2), canine parainfluenzavirus(CPIV) in dogs. The period studied was from October 1992 to June 1993. A total of 80 dog sera was collected from veterinary clinics in Kwangju and Seoul, and examined for the presence of virus antibodies. Immunofluorescent antibodies(IFA) to all viruses were present in a high percentage of 80 sera tested. Seventyfive(93.8%) showed detectable IFA against CPV, 67(83.8%) against CDV, 51(63.8%) against CCV, 42(52.5%) against CPIV and 34(42.5%) against CAV-2. These suggested that all viruses were endemic in the communities. IFA levels against each virus were also distributed fairly irregularly. IFAs for CDV and CPV were detected more frequently with a relatively high incidence in vaccinated group less than 1 years of age. IFAs for CAV-2 were detected more frequently with growing age. In the correlation of clinical signs and antibody prevalence, dogs that showed hematochezia and vomiting had high titers in the positive sera is noteworthy, particularly for CDV and CPV. The significance between dogs those who had diarrhea, dyspnea and salivation and those viruses were obscure.

• IMMUNE NETWORK
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• 제5권1호
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• pp.1-10
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• 2005

Background: Chronic infection with hepatitis B virus (HBV) affects about 350 million people worldwide, which have a high risk of development of cirrhosis and hepatocellular carcinoma. Treatment of chronic HBV infection relies on IFN-${\alpha}$ or lamivudine. However, interferon-${\alpha}$ is effective in only about 30% of patients. Also, the occurrence of escape mutations limits the usage of lamivudine. Therefore, the development and evaluation of new compounds or approaches are urgent. Methods: We comparatively evaluated DNA and adenoviral vaccines expressing HBV antigens, either alone or in combined regimens, for their ability to elicit Th1-type immune responses in Balb / c mice which are believed to be suited to resolve HBV infection. The vaccines were tested with or without a genetically engineered IL-12 (mIL-12 N220L) which was shown to enhance sustained Th1-type immune responses in HCV E2 DNA vaccine. Results: Considering the Th1-type cytokine secretion and the IgG2a titers, the strongest Th1-type immune response was elicited by the DNA prime-adenovirus boost regimen in the presence of mIL-12 N220L. In addition, the codelivery of mIL-12 N220L modulated differentially the immune responses by different vaccination regimens. Conclusion: Our results suggest that the DNA prime-adenovirus boost regimen in the presence of mIL-12 N220L may be the best candidate for HBV vaccine therapy of the regimens tested in this study and will be worthwhile being evaluated in chronic HBV patients.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• 제16권3호
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• pp.162-170
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• 2013

Purpose: To detect major acute gastroenteritis virus (rotavirus, norovirus, astrovirus, and enteric adenovirus) and non-enteric type of adenovirus (AdV) in the stools of intussusception patients and to investigate the clinical role of detected viruses. Methods: From March 2012 to February 2013, major acute gastroenteritis virus and non-enteric type of AdV were isolated from stool samples that collected from 44 patients treated for intussusception in Chungnam National University Hospital. Patients were divided according to age and isolated virus. Results: Virus was detected in 28 (63%) stool specimens. The virus detection rate was significantly lower in patients aged under 12 months (p = 0.04). Twenty-two patients (78.6%) had non-enteric adenovirus, 4 (14.3%) had norovirus, 1 (3.6%) had sapovirus, and 1 (3.6%) had astrovirus. AdV subgroup C (AdV 1, 2, 5, and 6) comprised the majority with 20 cases (90.9%). A monthly increment-and-decrement pattern of intussusception was similar to that of viral detection in the stool samples. Enema reductions were successful in 39 patients and surgical manual reductions were performed in 5 patients. Virus was detected in 24 patients (61.5%) of enema reduction group and 4 patients (80.0%) of surgical manual reduction group. All of the detected viruses were non-enteric adenovirus subgroup C (AdV 1, 5, and 6) in surgical reduction patients. Conclusions: The virus detection rate was high in the stools of intussusception patients. The pattern of seasonal intussusception occurrence rate was parallel with seasonal these viral detection rate in the stool samples. These findings suggest that viral infection plays an important role in the development of intussusception and further research is warranted.