혈액암환자에서 조혈모세포 이식 후 따르는 헤르페스 바이러스 감영 양상

이호섭,탁희상,신성훈,김양수,남성진,김혜수,박진희,정수현,김성빈,김예나 고신대학교 의과대학 2010 고신대학교 의과대학 학술지 Vol.25 No.1

배경 : 헤르페스바이러스과에는 단순포진 바이러스(HERPES SIMPLEX VIRUS, HSV), 수두대상포진 바이러스 (VARICELLA-ZOSTER VIRUS, VZV), 엡스타인-바 바이러스 (EPSTEIN-BARR VIRUS, EBV), 그리고 거대세포 바이러스 (CYTOMEGALOVIRUS, CMV) 등이 있다. 헤르페스바이러스 감염은 혈액암환자에서 조혈모세포 이식 환자에서 전파 (dissemination), 이차감염, 세균 중복 감염의 심각한 합병증을 일으킬 수 있다. 하지만 항암약물치료를 받는 림파종 환자에서 항 바이러스 약제의 사용 용량과 기간에 대한 concensus는 없다. 헤르페스바이러스 감염에 대한 발생율과 위험인자를 후향성으로 분석하였다. 방법 : 고신대학교 복음 병원에서 1995년 6월부터 2009 년 2월 사이에 새롭게 진단되어 조혈모세포 이식을 받은 전체 58명의 환자들이 후향적으로 현 연구에 등록했다. 헤르페스 바이러스 감염은 임상적 진단, 혈청학적 검사 또는 병리학적 진단에 기초하여 확진한다. 환자들의 특성은 다음과 같다: 평균 연령은 44세 (범위 19-62세)였고 남녀비는 30:28이었다. 등록된 질환은 백혈병 (n=9, 15.5%), 림프종 (n=30, 51.7%), 다발성 골수종 (n=12, 20.7%), 재생불량성 빈혈 (n=6, 10.3%) 그리고 골수이형성증후군 (n=1, 1.7%)이 포함되었다. 결과는 chi-squre test나 independent samples T test를 사용하여 분석되었다. Multivariate analysises에 대해 logistic regression test를 사용하였다. 결과 : 15명의 환자들 (25.9%)에서 조혈모세포 이식후 헤르페스 바이러스 감염이 발생하였다. 조혈모세포 이식 5년간 누적 발생율은 53.9%였다. Univariate analyses에서 헤르페스 바이러스 감염에 대한 유의한 위험 인자는 없었다. 하지만 조혈모세포 이식후 생존 기간(40.18 ± 30.14 months vs 20.06 ± 26.67 months, p=0.018)은 헤르페스 바이러스 감염의 낮은 발병율과 유의한 관련성이 있었다. 이식 편대 숙주질환 (GVHD)의 존재 (37.5% in developed GVHD vs 0% in no GVHD, p=0.200), 동종조혈 모세포 이식에서 면역억제요법의 기간 (15.98 ± 14.02 months vs 6.78 ± 3.67 months, p = 0.374)은 헤르페스 바이러스 감염에 대한 위험인자가 아니었다. 결론 : 조혈모세포 이식 후 생존 기간은 어사이클로비어 예방을 받은 혈액암 환자에서 헤르페스 바이러스 감염의 낮은 발병율과 연관성이 있는 것으로 보인다. 저용량의 어사이클로비어 예방은 헤르페스 바이러스 감염의 고위험군인 조혈모세포 이식을 받은 혈액암 환자에 필요하리라 생각된다. Background : Herpesviridae family includes herpes simplex virus, varicella zoster virus, Epstein-Barr virus, and cytomegalovirus, etc. Herpesviridae viral infection (HVI) can lead to serious complications including dissemination, secondary infection, bacterial superinfection in patients with hematologic malignancy following hematopoietic stem cell transplantation (HSCT). But there was no consensus on the dose and duration of antiviral agents prophylaxis in patients undergoing chemotherapy. We retrospectively analyzed the incidence and the risk factors for HVI. Method : A total of 58 patients who newly diagnosed and received HSCT with prophylaxis of acyclovir at the Kosin University Gospel Hospital, Busan, Korea between June 1995 and February 2009 were enrolled retrospectively in the current study. HVI was confirmed based on clinical diagnosis, serologic test or pathologic diagnosis. The characteristics of the patients were as follows: the median age was 44 years (range 19-62 years) with a female-to-male ratio of 30:28. The enrolled diseases included leukemia (n=9, 15.5%), lymphoma (n=30, 51.7%), multiple myeloma (n=12, 20.7%), aplastic anemia (n=6, 10.3%) and myelodysplastic syndrome (n=1, 1.7%). The results were analyzed using a chi-square test and independent samples T test. For the multivariate analysis, we used logistic regression test. Results : Fifteen patients (25.9%) developed HVI after HSCT. The cumulative incidence of HVI was 53.8% at 5 years after HSCT. In univariate analysis, there was no significant risk factor for HVI. The presence of graft-versus-host disease (GVHD) (37.5% in developed GVHD vs. 0% in no GVHD, p=0.200), duration of immunosuppressive therapy (IST) in allo-SCT (15.98 ± 14.02 months vs. 6.78 ± 3.67 months, p = 0.374) were not risk factors for HVI. Conclusion : The incidence of HVI was similar to that in historical other studies. There was no risk factor associated with development of HVI. Most of the HVI occurred within the first 24 months after transplantation. So long term use of antiviral prophylaxis may be needed to prevention of HVI after HSCT.

혐기성 소화에 대한 식종원 및 암모니아 농도의 영향

김양지,김성일,신범식,안기섭,김종수 한국환경농학회 2004 한국환경농학회지 Vol.23 No.1

혐기성 소화에서 미생물에 저해/독성 물질로 알려진 암모니아의 농도와 식종원에 따른 영향 을 회분식 반응기를 이용하여 분석하였다. 식종원은 고농도의 암모니아에 장기간 적응된 축 산농가 축산폐수 집수조의 슬러지 그리고 저농도의 암모니아에 노출된 하수종말처리장 혐기 성 소화조 슬러지를 사용해서 COD 제거율과 biogas 발생량으로 측정된 혐기성 미생물의 활성에 저해영향을 주기 시작하여 3,500 ㎎-N/L에서는 더욱 심하였다. 암모니아 저해 농도 범위에서 휘발성 유기산의 농도는 50㎎/L 범위로 유지되므로 메탄생성균 뿐만 아니라 산생 겅균도 저해영향을 받는 것으로 나타났다. 축산폐수 집수조 슬러지로 식종된 경우 암모니아 농도가 TAN으로 2,500∼3,500 ㎎-N/L 범위에서도 COD 제거율과 biogas 발생량의 감소폭 은 미미하였으나, 하수종말처리장 혐기성 소화조 슬러지로 식종된 경우 암모니아 농도가 증 가할수록 COD 제거율과 biogas 발생량은 큰 폭으로 감소하였다. 결과적으로 암모니아에 장 기간 순응된 슬러지로 식종한 경우 암모니아의 저해 농도에 대하여 적응도 빨랐으며 저해영 양도 적었다. The seeding sources and concentration of ammonia on anaerobic digestion were investigated by batch culture bioreactors. The sourcces of seeding on anaerobic digestion were from swine wastewater collection pit of a hog raising farm and from anaerobic digestion sludge of a municipal sewage treatment plant. The inhibition of ammonia on anaerobic microoganisms was initiated at ammonia concentration of 1,500 ㎎NH₄-N/L and it s effect was increased by increasing ammonia concentration up to 3,500 ㎎NH₄-N/L, regardless the sources of seeding as evidenced by decreases in COD removal efficiencies and biogas yields. The inhibition occurred to not only methanogens but also acidogens since the concentration of volatile fatty acids was maintained at 50 ㎎/L. The COD removal efficiency and biogas yield were maintained constantly while increasing ammonia concentration up to 3,500 ㎎NH₄-N/L when swine wastewater collection pit was used as a seeding; however, those were decreased while increase ammonia concentration when anaerobic digestion sludge was used as a seeding. The results indicate that the seeding acclimated to high concentrations of ammonia for long time was easy in adaptation to high ammonia concentration and less subjective to ammonia inhibitory effects.

韓國 8個造林樹種의 林分內의 外生菌根버섯의 分布에 關한 硏究

金養燮,李景俊 서울大學校 農科大學 1985 서울대농학연구지 Vol.10 No.2

高等菌類中에서 外生菌根을 形成하는 菌根버섯의 奇主選擇性을 究明하기 爲하여, 全國 아홉個 場所를 對象으로 6月부터 10月까지 소나무林, 잣나무林, 낙엽송林, 젓나무林, 참나무林, 자작나무林, 포플러林, 밤나무林에서 菌根버섯을 採取하여 同定하고 서로 比較하였다. 8個 林分에서 總 38屬 133種의 菌根버섯을 採取하였는데 그 中 소나무林에서 19屬 39種 잣나무林에서 12屬 25種, 잎갈나무林에서 7屬 9種, 젓나무林에서 14屬 32種, 참나무林에서 13屬 29種, 자작나무林에서 7屬 10種, 포플러林에서 11屬 21種, 밤나무林에서 11屬 16種의 菌根버섯이 採集되었다. 가장 多樣한 菌根버섯을 生産하는 林分은 소나무林이었으며 가장 單純한 林分은 잎갈나무林이었다. 광대버섯類(Amanita), 무당버섯類(Russula), 졸각버섯類(Laccaria)는 모든 9個 場所에서 모든 林分에서 採集되어 가장 寄主의 範圍가 넓은 菌根버섯類이었으며 비단그물버섯類(Suillus)는 소나무科인 소나무林, 잣나무林, 잎갈나무林에서만 採集되었다. To understand the host specificity of ectomycorrhizal fungi, mushrooms occurring on the forest floor of pure stands of Pinus densiflora, Pinus koraiensis, Larix leptolepis, Abies holophylla, Quercus aliena, Betula platyphylla, Populus alba × glandulosa and Castanea crenata were collected for comparison. A total of 133 ectomycorrhizal species in 38 genera were collected, and following number of genera and species of putative ectomycorrhizal fungi were identified: 39 species in 19 genera from Pinus densiflora , 25 species in 12 genera from Pinus koraiensis, 9 species in 7 genera form Larix, 32 species in 14 genera from Abies, 29 species in 13 genera from Quercus, 10 species in 7 genera from Betula, 21 species in 11 genera from Populus, and 16 species in 11 genera from Castanea stands, The most diversified fungal flora was observed from Pinus densiflora, while Larix leptolepis had simplest flora. Among ectomycorrhizal fungi collected, Amanita, Russula and Laccaia were found in all the stands, suggesting broad host specificity of these genera. Suillus species were found in the four stands of Pinaceae, confirming limited association of Suillus with Pinaceae family only.

병기 2기와 3기 직장암 환자에서 수술 후 항암화학요법과 동시방사선화학요법

이호섭,김양수 고신대학교의과대학 2008 고신대학교 의과대학 학술지 Vol.23 No.4

Background : Postoperative adjuvant therapy has been required in patients with operable rectal cancer because of risk of recurrence after surgery. Adjuvant therapies are known to chemotherapy (CTx), radiotherapy, and concurrent chemoradiotherapy (CCRT). Purpose of our study to compare the suvival rate, recurrence rate and toxicities between postoperative adjuvant CTx and CCRT in patients with rectal cancer after surgical treatment. Materials and Methods : This study involved 45 patients (CCRT; 15, median age; 58 years, range; 39-73) and CTx; 30, median age; 55 years, range; 36-67) with rectal cancer of stage II and III between April 2002 and May 2008. Treatment included six cycles of chemotherapy at 4-week intervals with fluorouracil 425mg/m2 and leucovorin 20mg/m2 administering continuous infusion for 24 hours during 5 days in CCRT group. Radiotherapy started on day 1 of the third chemotherapy cycle in CCRT. In CTx group, treatment included the same cycles of chemoterapy, and drug doses as in CCRT group. Results : Disease free survival (DFS) and Overall survival (OS) for 3 years were 68.4% and 70.8% in CCRT group and 82.5% and 80.5% in CTx group, respectively (DFS; P-value 0.997, OS; P-value 0.880). Recurrence rate including local recurrence and distant metastasis were 26.7% in CCRT group and 23.3% in CTx group (p-value 0.806). Local recurrence rates were 0% in CCRT group and 16.7% in CTx group (p-value 0.094). We investigated hematologic and non-hematologic toxicites. The incidence of radiation related proctitis was 26.7% in CCRT group and 0% in CTx group. But other toxicities were not significantly different between CCRT group and CTx group. Conclusion : DFS and OS were not different between CCRT group and CTx group in patients with rectal cancer of stage II and III. But local recurrence rate was lower in CCRT group than in CTx group. Toxicities were not differrent between CCRT group and CTx group, except the higher frequency of radiation related proctitis in CCRT group.

N/O/N 박막 다이아프레임을 이용한 광섬유 압력센서의 제작 및 그 압력특성

유양욱,김명규,박동수,김창원,김진섭,이정희,손병기 경북대학교 센서기술연구소 1995 센서技術學術大會論文集 Vol.6 No.1

The 0.6 μm N/O/N triple layer, Si_(3)N_(4)(150 nm)/SiO_(2)(300 nm)/Si_(3)N_(4)(150 nm), was deposited on silicon substrate and the N/O/N thin film diaphragm was formed using anisotropic etching technique. The stress of the formed diaphragm was very small with temperature variations. Combining this diaphragm and the optical fiber, intensity-type pressure sensor was fabricated and its pressure characteristics were investigated. The relation between the optical output power, inversely proportional to the deflection of the diaphragm, and the applied pressure was almost linear in 0~77 torr range.

피로손상의 변형율 구배영향에 관한 연구

崔昌燮,金良述 홍익대학교 산업기술연구소 1994 産業技術 Vol.4 No.-

Fatigue fracture is an engineering problem. Because it is closely related with the design/fabrication/working conditions of machine. these factors should be adequately taken into consideration when fatigue strength and length of life is examined. This study aims to provide a scale for the interpretation of fatigue damage. To do so the effects of strain rate and gradient were examined based on the data regarding the fatigue limit. It was disclosed that while the strain gradient rate are large, the area causing the fatigue cracks primarily are determined by gradient and that while the strain gradient rate are small the dimension effect is determined by material factors.

재래종 콩 유전자원의 주요 형태적 특성과 변이

윤문섭,백형진,이정란,김행훈,조양희,안종웅,김창영 한국국제농업개발학회 2003 韓國國際農業開發學會誌 Vol.15 No.4

본 실험은 한국, 중국 및 일본 재래종 콩 유전자 자원의 주요형질 변이를 조사하고 이들 자원간의 지리적 유연관계를 비교하고자 수행하였으며, 그 결과를 요약하면 다음과 같다. 1. 경장은 한국(66㎝)이나 일본자원(54.9㎝)보다 중국자원(71㎝)에서 더 컸으며, 또한 변이도 중국자원에서 가장 큰 것으로 나타났다. 2. 개화일수 및 생육일수는 한국자원(65.5일, 151.4일)이 가장 길었으며 중국(57일, 120일)과 일본자원(59.9일, 122.4일)은 같은 경향을 나타냈다. 또한 한국과 중국자원은 지역에 따른 차이를 나타냈으나 일본자원에서는 확인할 수 없었다. 3. 백립중은 한국(18.8g), 일본(17.2g) 및 중국(14.7g) 순으로 무거웠다. 특히 한국자원은 9~11g과 23~25g에서 정점을 나타냈고, 변이폭도 가장 컸다. 반면 일본과 중국자원은 13~17g사이에서 정점을 나타냈다. 4. 협수는 중국(46.9개)이나 일본자원(36.5개)보다 한국자원(75.5개)에서 가장 많았으며, 변이폭도 한국자원에서 가장 컸다. 내도복성은 일본자원에서 가장 강하였다. 5. 정준판별분석결과 can 1을 경계로 하여 오른쪽 상하에 한국재래종이 주로 분포하였고 왼쪽에는 중국과 일본 재래종이 주로 분포하여 각 나라별로 고유한 영역을 가지고 분리되었다. 전체적 경향이 중국과 일본자원이 한국자원보다 가까운 경향을 나타냈다. This experiment was carried out to compare the characters of 944 Korean soybean landraces, 716 Chinese, and 170 Japanese soybean landraces introduced from USDA soybean germplasm collection. Cannonical discriminant and cluster analyses were conducted by their origins. The population from China was taller in plant height than those from Korea and Japan, also its variation was largest in Chinese population. The population from Korea was langer than those from China and Japan in terms of days to flowering and maturity. Also, Korean and Chinese accessions appeared the difference of those traits according to latitude. One hundred seeds weight was in the order of Korean(18.8g), Japanese(17.2g) and Chinese populations(14.7g), especially Korean population was distinguished into two groups; the group including accessions between 10 and 15g, and the other group including accessions between 20 and 25g. However, others showed the peak in range of 13~17g. The number of pod per plant was more in Korean accession(75.5) with the largest variation than Chinese(46.9) and Japanese accession(36.5). The distribution of Korean, Chinese and Japanese accessions reflected the origin of accessions analyzed by cannonical discriminant analysis. The relationship between their geographical origins showed the population of China and Japan are losely related.

칼슘제 수관살포가 참다래의 과실 품질과 저장에 미치는 영향

임경호,나양기,임동근,마경철,조윤섭,김월수,이상현,박용서 全南大學校 農業科學技術硏究所 2001 農業科學技術硏究 Vol.36 No.-

This study were carried out to improve Kiwifruit quality and storage life. Three kinds of calcium compound were sprayed and calcium content of fruits, weight loss during fruit storage and fruit quality were investigated. Calcium contents within leaves and fruit were lower in Clef-non treatment than that of control. The calcium content in fruit pericarp of Kalk-H and CaCl2 was 0.04 to 0.05% higher than that of control. Fruit weight and soluble solids content at harvest was a little higher but acidity and fruit hardness was lowered. Fruit weight loss of Kalk-H and CaCl2 treatment was 1.39 to 1.53% lower than that of control during storage. The soluble solids of ripen fruit was 1.0 to 1.3% higher in all treatment and 0.8% higher in Kalk-H treatment in 120 of after storage. Fruit hardness of control fruit was higher at harvest but that of CaCl2 treatmented fruit was 0.39㎏/φ 5㎜ higher in 120 days of storage.

Bortezomib과 Dexamthasone으로 치료한 골수외 형질세포종 4예

백종현,이은영,장리라,손창배,신은경,서정아,이지숙,이호섭,이상민,신성훈,김양수 고신대학교의과대학 2007 고신대학교 의과대학 학술지 Vol.22 No.2

Despite the use of aggressive local and systemic treatment including autologous stem cell transplantation in multiple myeloma, extramedullary recurrences are common and the prognosis of these patients is poor. Many novel drugs such as thalidomide, lenalidomide and bortezomib improve the response of treatment of multiple myeloma, but some reports failed to describe thalidomide has effect in extramedullary plasmacytoma. Recent data report on the successful treatment plasmacytomas with bortezomib in patients with advanced multiple myeloma. We treated 4 relapsed or refractory extramedullary plasmacytomas with bortezomib at our institution. We recognized all these extramedullary plasmacytomas decreased and showed more than partial response. This report lends support to the efficacy of bortezomib in the treatment of plasmacytoma and describes the safe use of bortezomib. Responses may, however, be of short duration. Therefore, despite our limited experience, we propose that bortezomib may be considered a therapeutic option for such patients who have risk of radiation therapy

Both CD45RA⁺ and CD45RO⁺ human CD4⁺ T cells drive direct xenogeneic T-cell responses against porcine aortic endothelial cells

Kim, Chi Hwa,Oh, Keunhee,Kim, Dong-Eun,Lee, Seul Bee,Yang, Ji Hye,Lee, Gene,Cho, Jaejin,Lee, Dong-Sup Blackwell Publishing Ltd 2010 Xenotransplantation Vol.17 No.3

<P>Kim CH, Oh K, Kim D-E, Lee SB, Yang JH, Lee G, Cho J, Lee D-S. Both CD45RA<SUP>+</SUP> and CD45RO<SUP>+</SUP> human CD4<SUP>+</SUP> T cells drive direct xenogeneic T-cell responses against porcine aortic endothelial cells. Xenotransplantation 2010; 17: 224–232. © 2010 John Wiley & Sons A/S.</P><P>Abstract: Background: </P><P>Xenogeneic cellular immune responses are mediated by either direct or indirect pathways depending on the participation of donor or host antigen presenting cells, respectively. The contribution of direct response of human T cells, especially memory T cells, to porcine antigen presenting cells is currently unknown. Here, we sought to determine whether human peripheral blood memory/activated phenotype T cells are directly responsive to porcine endothelial cells.</P><P>Methods: </P><P>Porcine aortic endothelial cells (PAECs) were prepared from Yorkshire or miniature pigs. Highly purified human T cells, including naïve and memory/activated phenotype cells, were incubated with PAECs with or without the addition of exogenous cytokines. T-cell proliferation and T-cell receptor (TCR) V&bgr; usage in response to PAECs were analyzed.</P><P>Results: </P><P>Both CD8<SUP>+</SUP> and CD4<SUP>+</SUP> T cells responded directly to PAECs and exhibited exclusive responsiveness to SLA class I and class II molecules, respectively. Naïve and memory/activated phenotype CD4<SUP>+</SUP> T cells responded against PAECs, whereas only naïve phenotype CD8<SUP>+</SUP> T cells contributed to such a response. In addition, both populations of xenogeneic human CD4<SUP>+</SUP> T cells exhibited similar and diverse V&bgr; usage.</P><P>Conclusion: </P><P>Due to the considerable contribution of human CD45RO<SUP>+</SUP>CD4<SUP>+</SUP> T cells to the xenoreactivity against PAECs, effective control of xenogeneic memory/activated T-cell responses would significantly affect long-term survival of transplanted grafts.</P>