국내에서 유행하는 HIV의 전파 경로에 따른 Subtype 분포

이주실,남정구,김성순,강춘,최병선,김옥진,박미선,성봉모,서순덕,전수경,변승옥,신영오,조해월 대한감염학회 2001 감염 Vol.33 No.5

Background : Previous data have been reported that subtype B is prevalent in South Korea, but neither the extent nor the proportion of subtypes could be evaluated. This study was designed to analyze the distribution of HIV-1 subtypes, temporal instructions and transmission dynamics between epidemiological groups. Methods : 1,280 Koreans had been diagnosed as HIV seropositive during the period 1985 to 2000. Among them, 134 individuals were selected for this molecular epidemiological study. 134 DNAs were isolated from uncultured or cultured peripheral blood mononuclear cells. V3-V5 (0.7 kb) fragment of HIV-1 env gene was amplified by nested polymerase chain reaction and was sequenced. Results : HIV-1 isolates from thirty-seven homosexuals were all subtype B (100%). On the other hand, 66 isolates from 94 heterosexuals were subtype B (70%) and 28 were non B subtypes (30% : 13 A, 4 C, 2 D, 8 E , 1 G). Only subtype B strains were isolated from 73 males who were infected with HIV inside Korea while 16 B and 20 non B subtype strains were isolated from 36 males who were HIV infected outside of Korea. However, B and non B strains were isolated half and half from females who were infected inside Korea except one. Conclusion : The HIV-1 subtype B strains are prevalent in Korea from the early HIV infection until present in both homo and heterosexuals. Non B strains have been transmitted from men who were infected outside Korea to their spouses and casual partners. So, we need further study to monitor subtype B and non B HIV transmission in epidemiological groups of Korea, (Korean J Infect Dis 33:311∼318, 2001)

황해 동남 해역의 수괴지표성 요각류 및 모악류의 분포와 수괴특성

박주석,이삼석,강영실,이병돈,허성회 동의대학교 기초과학연구소 1993 基礎科學硏究論文集 Vol.3 No.1

Distribution of indicator species of copepods and chaetognaths were studied as an indicator species of water mass in the southeastern area of the Yellow Sea. Undinula darwini, Lucicutia flavicornis, Pleuromamma gracilis, Euchaeta resselli, Euchaeta plana and Sagitta enflata were found to be reliable indicator species for determining warm water mass. Of these species, E. plana and E. russelli have a weak tolerance on the low temperature. Sagitta crassa was indicator species of neritic waters: Sagitta bedoti was that of mixing waters. Centropages agdominalis represented neritic cold waters. In February U. darwini, L. flavicornis, P. gracilis, E. russelli, E. plana and S. enflata occurred in the western waters of Cheju-Do where warm waters over 14℃ occupied. Centropages abdominalis occurred in the northern area beyond Chindo with water temperature less than 10℃. E. plana, E. russelli and S. bedoti were found at the regions between Cheju-Do and Chindo where the water temperature was 12∼14℃ corresponding to the mixing waters. Based on cluster analysis and T-S diagram in February three different water masses were identified from the south to the north. In August, water masses were analyzed at two different layers, 0∼20m and 20m∼bottom layers, separated by thermocline depth. In 0∼20m layer, E plana and E. russelli were found from the western waters of Cheju-Do to Daehuksando. In 20m∼bottom layer, E. russelli and E. plana occurred at the northwestern waters of Cheju-Do with the water temperature warmer than 12℃. C. abdominalis was found at the northern area beyond Chindo. Based on the cluster analysis and T-S diagram in August three different water masses at 0∼20m and 20m∼bottom layers were identified from the coast to the offshore. C. abdominalis was found at the adjacent water of Chindo at 0∼20m layer and the northern area beyond Chindo at 20m∼bottom layer. This fact suggested that the cold water mass existed at the adjacent waters of Chindo in summer.

Newly Synthesized Phosphodiesterase 4 (PDE4) Inhibitor, DWP205505, Inhibits TNF-α Secretion and mRNA Expression

Lee, Suk-Kyeong,Lee, Sun-A,Byun, Hye-sin,Cho, Mi-La,Kim, Wan-Uk,Park, Sung-Hwan,Cho, Chul-Soo,Joo, Yeong-Shil,Lee, Shin-Seok,Yoo, Eun-Sook,Son, Ho-Jung,Kim, Ho-Youn THE CATHOLIC UNIVERSITY OF KOREA 2000 Bulletin of The Catholic Research Institutes of Me Vol.28 No.-

The therapeutic potential of phosphodiesterase 4 (PDE4) inhibitors in inflammatory diseases including some autoimmune diseases has been explored recently with some hopeful results. These PDE4 inhibitors are thought to show their anti-inflammatory effect by down-regulating tumor necrosis factor-α (TNF -α) production in lymphocytes and macrophages. A high concentration of TNF -α have been found in rheumatoid arthritis (RA) synovium and reducing TNF -α using biological agents was proven to be an effective RA treatment. To test the possibility of using PDE4 inhibitors for RA treatment, the effects of a newly synthesized PDE4 inhibitor, DWP205505, on TNF -α and IL-10 production was tested in cells isolated from normal peripheral blood and rheumatoid arthritis synovial fluid. Cytokine production was assayed at the protein level by sandwich enzyme-linked immunosorbent assay (ELISA) and at the mRNA expression level by semi-quantitative RT-PCR. Another PDE4 inhibitor, RP73401, was used for comparison. DWP205505 and RP73401 had no harmful effect on cell viability up to 10 μM concentration during the 24 hour culture period. DWP205505 as well as RP73401 significantly reduced TNF -α secretion from both unstimulated and lipopolysaccharide (LPS)-stimulated perpheral blood mononuclear cells (PBMC) and synovial fluid mononuclear cells (SFMC). The effect of DWP205505 or RP73401 treatment on the mRNA expression of TNF -α was also studied in LPS-stimulated PBMC and SFMC. TNF -α mRNA expression was increased by LPS stimulation and both of the PDE4 inhibitors suppressed TNF -α mRNA expression. For interleukin-10 (IL-10), a little different results were obtained from PBMC and SFMC; IL-10 secretion was unaffected by LPS stimulation and only minimally affected by both of the PDE4 inhibitors in PBMC. In unstimulated SFMC, DWP205505 and RP73401 slightly enhanced IL-10 secretion, while they reduced IL-10 secretion from LPS-stimulated SFMC where IL-10 secretion was a lot higher than unstimulated SFMC. These results suggest that the newly synthesized PDE4 inhibitor DWP205505 may have anti-rheumatioid arthritis activity. (Journal of Microbiology and Biotechnology 9(1):106-112, 1999)

Rapid Dissemination of Newly Introduced Plasmodium vivax Genotypes in South Korea

Kim, Yeon-Joo,Kim, Jung-Yeon,Lee, Eun-Gyu,Lee, Byeong-Chul,Cho, Shin-Hyung,Yu, Jae-Ran,Rhie, Ho-Gun,Choi, Yien-Kyoung,Lee, Ho-Sa,Lee, Joo-Shil,Kim, Tong-Soo,Choi, Kyung-Mi,Park, Mi-Hyun American Society of Tropical Medicine and Hygiene 2010 The American journal of tropical medicine and hygi Vol.82 No.3

<P>Reemerged Plasmodium vivax malaria in South Korea has not yet been eradicated despite continuous governmental efforts. It has rather become an endemic disease. Our study aimed to determine the genetic diversity in P. vivax merozoite surface protein-1 (PvMSP-1) and circumsporozoite protein (PvCSP) genes over an extended period after its reemergence to its current status. Sequence analysis of PvMSP-1 gene sequences from the 632 P. vivax isolates during 1996-2007 indicates that most isolates recently obtained were different from isolates obtained in the initial reemergence period. There was initially only one subtype (recombinant) present but its subtypes have varied since 2000; six MSP-1 subtypes were recently found. A similar variation was observed by CSP gene analysis; a new CSP subtype was found. Understanding genetic variation patterns of the parasite may help to analyze trends and assess extent of endemic malaria in South Korea.</P>

Newly Synthesized Phosphodiesterase 4 ( PDE4 ) Inhibitor , DWP205505 , Inhibits TNF-α Secretion and mRNA Expression

(Suk Kyeong Lee),(Sun A Lee),(Hye Sin Byun),(Mi La Cho),(Wan Uk Kim),(Sung Hwan Park),(Chul Soo Cho),(Young Shil Joo),(Shin Seok Lee),(Eun Sook Yoo),(Ho Jung Son),(Ho Youn Kim) 한국미생물생명공학회 1999 Journal of microbiology and biotechnology Vol.9 No.1

N/A N/A

한국인 류마티스관절염 환자의 전신적 골다공증

주영실 ( Yeong Shil Joo ),이신석 ( Shin Seok Lee ),김완욱 ( Wan Uk Kim ),민준기 ( Jun Ki Min ),박성환 ( Sung Hwan Park ),홍연식 ( Yeon Sik Hong ),이상헌 ( Sang Heon Lee ),조철수 ( Chul Soo Cho ),김호연 ( Ho Youn Kim ) 대한류마티스학회 2000 대한류마티스학회지 Vol.7 No.1

Objectives: To assess the extent of generalized osteoporosis in Korean rheumatoid arthritis patients and evaluate the importance of disease activity, duration of disease, menopausal status, corticosteroid use and markers of bone metabolism. Methods: Bone mineral density was measured by dual energy x-ray absorptiometry (DEXA) at 3 locations in 134 rheumatoid arthritis patients, aged 21~80 (57 premenopausal and 66 postmenopausal patients). Markers of bone metabolism were measured and assessed in relation to the disease activity and corticosteroid use. Results: The mean age of the study population was 49 years and mean age of the menopause was 48.1±3.6 years. Decreased bone mineral density was observed at all 3 locations measured in the study population (Z-score -0.36, -0.14 and -0.66 for BMD of L-spine, femoral neck and femur Ward`s triangle respectively). Fifty nine percent of the patients showed osteopenia (T-score <-1) and 13.4% showed Tscore lower than -2.5. The best independent predictors of bone mass (stepweise multiple regression analysis) was body mass index, cortocosteroid use, and CRP in premenopausal patients and years post menopause, age, alkaline phosphatase and rheumatoid factor in postmenopausal patients. Urinary excretion of deoxypyridinoline was increased in both pre- and postmonopausal RA patients while serum osteocalcin level was normal in both groups. Deoxypyridinoline level was significantly correlated with CRP in premenopausal RA patients. Conclusion: Generalized osteoporosis is also prevalent in Korean rheumatoid arthritis patients. Bone metabolism appears to be uncoupled. Deoxypyridinoline correlated best with CRP and thus can provide a rational approach for selecting and treating patients with RA to reduce the risk of osteoporotic fracture.

IL-12 is Involved in Bone Metabolism and Predicts Bone Loss in Premenopausal Rheumatoid Arthritis Patients

주영실 ( Yeong Shil Joo ),이신석 ( Shin Seok Lee ),김완욱 ( Wan Uk Kim ),민준기 ( Jun Ki Min ),홍연식 ( Yeon Shik Hong ),박성환 ( Sung Hwan Park ),이상헌 ( Sang Heon Lee ),조철수 ( Chul Soo Cho ),김호연 ( Ho Youn Kim ) 대한내과학회 1999 대한내과학회 추계학술대회 Vol.57 No.-

The Effect of Saccharomyces boulardii on Human Colon Cells and Inflammation in Rats with Trinitrobenzene Sulfonic Acid-Induced Colitis

Lee, Sang Kil,Kim, Youn Wha,Chi, Sung-Gil,Joo, Yeong-Shil,Kim, Hyo Jong Springer-Verlag 2009 Digestive diseases and sciences Vol.54 No.2

Comparison of Real-time PCR Methods and pp65 Antigenemia Assay to Detect Cytomegalovirus Reactivation in Hematopoietic Stem Cell Transplantation

Lee, Seon-Young,Choi, Byeong-Sun,Kim, Sung Soon,Choi, Su-Mi,Shin, Wan-Shik,Lee, Joo-Shil 대한감염학회 2008 감염과 화학요법 Vol.40 No.3

Human cytomegalovirus (HCMV) is a common human pathogen that causes morbidity and mortality in hematopoietic stem cell transplantation (HSCT) recipients. Early diagnosis of HCMV infection or reactivation, and setting threshold values for effective pre-emptive therapies, are required for appropriate HCMV disease prevention in HSCT recipients. We compared the HCMV infections detected by the two methods, LightCycler-based PCR (LC PCR) and in-house immediate early protein PCR (in-house IE PCR) with the results of a pp65 antigenemia assay as the reference. The sensitivity and specificity for the in-house IE PCR were 79.3% and 72.7%, respectively, and 82.9% and 40.7%, respectively, for the LC PCR. The correlation between the HCMV viral load and pp65 antigenemia in HSCT recipients was r=0.603 with in-house IE PCR and r=0.525 with LC PCR. The discordant results between methods and relatively low (r) values suggest that we need more study to set threshold values according to the using methods with clinical outcome.

한국 동해 중부 해역의 지표성 요각류 및 모악류의 분포와 수괴 특성

박주석,허성회,이삼석,강영실 한국수산학회 1991 한국수산과학회지 Vol.24 No.3

요각류와 모악류 중 주요 수괴 지표종의 분포에 근거하여 한국 동해중부해역의 수층별 수괴의 시·공간적 변동을 밝히기 위하여 14개의 정점에서 2월과 8∼9월에 폐쇄망으로 수층별로 동물 플랑크톤을 채집, 분석하였다. 요각류 중 난류 외양성 종인 Pleuromamma gracilis, Calanus tenuicornis와 모악류의 Sagita enflata및 S. minima, 한류성 종인 Calanus cristatus, Calanus plumchrus및 S. elegans 그리고 심해 한해성 종인 Gaetanus armiger의 분포와 수괴 변동과의 관계를 밝혔다. 0∼100m 수층에서는 한류성 종인 C. cristatus, C. plumchrus및 S. elegans의 분포로써 북한한류 세력이 주문진 연안까지 강하게 영향을 미치는 것을 밝혔다. 주문진-죽변이북 연안해역에서 S. elegans는 출현하지 않다가 죽변연안에서 다시 출현하는 것은 동한난류의 강한 연안측 침투로 북한한류는 하층으로 잠입되고 표층에서 주변해역보다 약 2∼4℃ 높은 고온수가 분포하기 때문이다 난류종인 S. enflata의 출현역시 이를 뒷받침하고 있다. 100∼300m 수층에서는, 2월의 경우 울릉도 서북방해역이 동한난류의 영향을 받는 수괴임을 C. tenuicornis와 P. gracilis의 분포로써 입증하였으며, 8∼9월의 경우, 동한난류의 영향을 받는 울릉도 서북방해역과 북한한류수계인 속초-주문진 연안역 사이에 혼합성을 띈 수괴가 존재하는 것을 S. bedoti의 분포로써 밝혀졌다. 300∼500m 수층의 경우, 2월과 8∼9월 모두 S. bedoti와 S. enflata의 출현수역인 울릉도 서북방을 제외하고는 모두 동해고유수괴가 존재하는 것으로 나타났다. 8∼9월에 있어서 전선역에 혼합종인 S. bedoti가 풍부한 반면, 난류종인 S. minima와 S. enflata가 없거나 아주 소량 출현하는 것은 수괴 배치이동과 잘 일치하르로, 이들은 전선형성을 밝히는데 유용한 지표종들이었다. Zooplankton samples were collected vertically from different layers with a closing net at 14 stations in the middle East Sea of Korea in February, August and September to study distribution of biological indicators for analysis of water masses. Horizontal and vertical distributions of important species of copepods and chaetognathas known as indicator species were closely related to distributions of different water masses and oceanic fronts. Pleuromamma gracilis, Calanus tenuicornis, Sagitta enflata and Sagitta minima were found to be reliable indicator species to determine warm water mass with warm core, and Calanus cristatus, Calanus tonsus and Sagitta elegans could be used as cold water species for evaluating the movement of cold current from North Korea, and Gaetanus armiger was deep sea water species. Therefore, it was found that North Korean Cold Current down to the south along the coast appeared to be significant in the surface around Chumunjin area, and from here towards the south the cold water containing S. elegans submerged under warm water with S. enflata which were about 2∼4℃ higher than that of the vicinity and reappeared near Chukpeon area in surface layer. In the layer between 100m and 300m depths, distribution of Pleuromamma gracilis and Sagitta bedoti indicated that warm water mass and front zone influenced by the different water systems were formed in northwestern area off Ulreung-do. In 300∼500m layer, the proper cold water could be estimated to be present in the northwestern area off Ulreung-do throughout the survey period by the high abundance of Gaetanus armiger. In August, distributions of S. bedoti, S. enflata and S. minima were valuable index to find oceanic fronts and warm core.