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최영준,강석중,조창환,명정구,김종현 國立統營水産專門大學 附設 水産科學硏究所 1990 수산과학연구소보고 Vol.2 No.-
멜라닌 색소의 생합성 과정에 관여하는 것으로 알려져 있는 효소 및 관련 인자와의 상관성을 검토하기 위하여 자연산 정상넙치와 양식산 백화넙치의 肉質과 表皮, 미립자 사료와 생물먹이인 Artemia 및 Rotifer에 대하여 단백질의 함량, 멜라닌 색소생성에 고나여하는 효소의 활성, 아미노산 조성 및 비타민A와 C의 함량을 비교하였다. 정상넙치表皮는 肉質에 비하여 단백질의 함량이 높았으나, 백화넙치인 경우는 대체로 비슷한 값이었다. 사료중의 단백질 함량은 미립자 사료 중 C1이 가장 높았다. catechal oxidase의 활성은 기질과 조효소 농도의 증가와 더불러 증가하였으며, 백화 유무에 관계없이 거의유사한 값으로 나타났다. 그리고 L-dopa oxidase활성도 동일한 결과였다. 정상넙치의 유리아미노산 함량은 백화개체에 비하여 높았으며, 表皮의 경우는 정상넙치가 백화너치에 비하여 7.5배 가량 높은 값을 나타내었다. 필수아미노산의 조성으로 비교했을 때, 미립자 사료는 Artemia와 Rotifer보다 우수한 단백질원이었다. 그리고 정상넙치의 함활아미노산의 함유량은 백화넙치의 6.3배에 달하였다. 비타민A는 정상 및 백화넙치의 肉質과 表皮에서 검출되지 않았으나 비타민C는 정상인 접치表皮가 백화넙치 表皮에 비해 약 7.8배였으며, 미립자 사료는 100.83mg/100ㅎ으로서 사료 중 가장 높았다. 따라서 넙치表皮의 멜라닌색소의 생성에는 기질인 방향족 아미노산과 함황아미노산이 큰 영향을 미치는 것으로 판단되었다. The albinic phenomenon of flat-fish (Paralichthys olivaceus) was investigated by measuring protein content, tyrosinase activity, amino acid composition, and contents of vitamin A and C. These materials in the flat-fish feed-stuff were also tested. The amount of skin protein was higher than that of muscle in normal flat-fish. Catechol and L-dopa oxidase activity did not differ between normal and albinic flat-fish. The free amino acid of skin in normal flat-fish was 7.5 times that in albinic one. Sulfur-containing amino acid in normal flat-fish was also 6.3 times that in albinic ones. Vitamin A was not detected in both of flat-fish. The content of vitamin C in normal flat-fish was 7.8 times that in albinic one. The contents of protein, sulfur-containing amino acid and Vitamin C in micro-encapsulated feed (one commercial feed in Japan) were the highest among the feed-stuff used in this experiment. The melanin formation of flat-fish skin was affected by substrates such as aromatic amino acid and cofactor such as sulfur amino acid.
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임태호,임훈,이종호,강형구,장문준,조광현,장석준,김승호,정상원 대한응급의학회 2000 대한응급의학회지 Vol.11 No.4
Background: This study was designed to analyze the current emergency department(ED) medical records of teaching hospitals in Korea. Methods: The five-item questionnaires were mailed to the EDs of 40 hospitals. Among them, 27 questionnaires and 35 ED medical records were returned for reply rates of 67.5% and 87.5%, respectively. Results: 1) The actual number of data elements in the ED medical records used by each hospital varies widely. It ranges from 1 to 15 data elements with an average of 7.5 data elements. 2) Thirteen data elements, signature of nurse, checklist style in review of systems, checklist style in physical examination, neurologic examination, figure of face, Glasgow coma scale, trauma scale, treatment plan, mode of transfer, condition on transfer, documents sent with patient, condition on discharge or discharge instruction, use of pediatric chart and vaccination history are used by less than 50% of the medical records examined. 3) There was no difference in the total number of data elements or in redesign and computerization of ED medical record based on the location of the hospital, the type of hospital administration, or the number of years since the start of EM residency program. 4) There was a statistically increased number of data elements in redesigned medical records. 5) In the survey, 89% of the residents replied that medical records needed to be redesigned. With respect to uniformity, 58% of the residents disagreed. A well-designed checklist chart rather than a descriptive chart was preferred by 89% of the residents. Conclusion: The currently used ED medical records have much room for improvement. The age of the ED had little impact on the quality of ED medical records. More attention and effort in this field are needed. In addition, The Korean Society of Emergency Medicine should provide guidelines for ED medical records.
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조혈모세포이식 환자에서 침습성 진균 감염에 대한 Micafungin의 예방 효과 및 안전성
김시현,이동건,최수미,권재철,박선희,최정현,유진홍,이성은,조병식,김유진,이석,김희제,민창기,조석구,김동욱,이종욱,민우성,박종원 대한감염학회 2010 감염과 화학요법 Vol.42 No.3
Background: Micafungin, a potent inhibitor of 1,3-β-D-glucan synthase, is a novel antifungal agent of the echinocandin class. In vitro study showed that micafungin was effective against Aspergillus species as well as Candida species, but clinical data on the prophylactic efficacy against invasive fungal infections (IFIs) other than candidiasis are still lacking. Materials and Methods: We identified 60 consecutive adult hematopoietic stem cell transplantation (HSCT) recipients who received at least 3 doses of micafungin during neutropenic period. Micafungin was started as an alternative in patients who were intolerant or had adverse events (AEs) to primary prophylactic antifungal agents. We retrospectively reviewed the medical records and analyzed the efficacy and safety of micafungin for prophylaxis against IFIs. Results: The patients either had autologous (n=9) or allogeneic (n=51: 1 syngeneic, 24 sibling, 26 unrelated donor) HSCT. Itraconazole oral solution (n=58) was the most frequently used first line antifungal agent for prophylaxis and was administered for median 11 days. The most frequent cause of switch to micafungin was vomiting (n=42). The duration of neutropenia and micafungin administration was median 13 and 12 days, respectively. A successful outcome was achieved in 45 (75%) patients. Empirical antifungal therapy was initiated in 13 (22%) patients. There were 2 cases (3.3%) of breakthrough fungal infections which comprised a probable invasive pulmonary aspergillosis and a possible invasive fungal sinusitis. There was no case of invasive candidiasis. A total of 53 (88%) patients experienced at least one AE regardless of causality during micafungin administration. The most frequent AEs were hypokalemia, vomiting, diarrhea, and elevated serum aspartate aminotransferase or alanine aminotransferase. Among the aforementioned AEs, only 1 case of diarrhea could be classified as a probable relation with micafungin when causality was assessed. There was no AEs that caused discontinuation of micafungin. Conclusions: Micafungin seems to be a safe and effective agent for prophylaxis of IFIs including aspergillosis as well as candidiasis in HSCT recipients. However, further large, prospective, and randomized comparative studies are warranted for aspergillosis.
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Cho, Seok Goo,Min, So-Youn,Park, Min Jung,Lee, Kyung Wha,Cho, Young-Gyu,Cho, Mi-La,Chang, Hong Seok,Park, Se-Ho,Lee, Jong Wook,Min, Woo Sung,Kim, Chun Choo,Kim, Ho-Youn Wiley Subscription Services, Inc., A Wiley Company 2006 Vol.54 No.6
<B>Objective</B><P>To investigate the immunoregulatory effects of allogeneic mixed chimerism induced by T cell–depleted, nonmyeloablative bone marrow transplantation (BMT) on chronic inflammatory arthritis and autoimmunity in mice deficient in interleukin-1 receptor antagonist (IL-1Ra).</P><B>Methods</B><P>IL-1Ra<SUP>−/−</SUP> mice (H-2K<SUP>d</SUP>) were treated with antibody to asialoganglioside G<SUB>M1</SUB> (anti–natural killer cell), total body irradiation (500 cGy), and T cell–depleted, nonmyeloablative BMT derived from C57BL/6 mice (H-2K<SUP>b</SUP>). Engraftment and chimerism were evaluated in peripheral blood, lymph nodes, and spleen by multicolor flow cytometry. The severity of arthritis was evaluated by clinical scoring and histopathologic assessment. Levels of IgG1 and IgG2a subtypes of anti–type II collagen (anti-CII) antibodies were measured in serum samples. After T cells were stimulated with CII, ovalbumin, and phytohemagglutinin, T cell proliferative responses and levels of cytokine production (interferon-γ [IFNγ], tumor necrosis factor α [TNFα], interleukin-10 [IL-10], and IL-17) were assayed in culture supernatants.</P><B>Results</B><P>All IL-1Ra<SUP>−/−</SUP> mice receiving BMT showed marked improvement in arthritis within 3 weeks, as well as successful induction of mixed chimerism. These mice showed higher levels of IgG1, and lower levels of IgG2a anti-CII antibodies and weaker T cell proliferative responses than did mice in the control groups (either no treatment or conditioning alone without bone marrow rescue). In mixed chimeras, the levels of IFNγ, TNFα, and IL-17 produced from CII-stimulated T cells were significantly suppressed and IL-10 production was significantly higher as compared with controls.</P><B>Conclusion</B><P>The introduction of allogeneic mixed chimerism showed a strong immunoregulatory potential to correct established chronic inflammatory arthritis and autoimmunity originating from a dysregulated proinflammatory cytokine network.</P>
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Cho, Byung-Sik,Yahng, Seung-Ah,Lee, Sung-Eun,Eom, Ki-Seong,Kim, Yoo-Jin,Kim, Hee-Je,Lee, Seok,Min, Chang-Ki,Cho, Seok-Goo,Kim, Dong-Wook,Lee, Jong-Wook,Min, Woo-Sung,Park, Chong-Won Lippincott Williams Wilkins, Inc. 2010 Transplantation Vol.90 No.8
BACKGROUND.: The lack of an accepted definition of transplantation-associated thrombotic microangiopathy (TMA) has led the Blood and Marrow Transplants Clinical Trials Network (CTN) and International Working Group (IWG) to propose a definition for TMA with some differences. However, there have been few studies validating and comparing both newly proposed criteria for TMA. METHODS.: To validate recently proposed criteria for TMA by CTN and IWG, we analyzed 672 patients who underwent allogeneic stem-cell transplantation between January 2002 and December 2006. RESULTS.: The cumulative incidences of TMA by CTN and IWG were 6.1% and 2.5%, respectively. The cumulative incidence of overall TMA (O-TMA) including probable-TMA defined as meeting CTN criteria without renal or neurologic dysfunction, as well as TMA by CTN (definite-TMA), was 12.7%. Sixty-six percent of TMA by CTN did not have any degree of schistocytosis by IWG criteria (≥4%), and 18% of TMA by IWG criteria did not have renal or neurologic dysfunction. On multivariate analyses, probable-TMA as well as definite-TMA adversely affected the survival of a cohort including all patients. In patients with O-TMA, the degree of schistocytosis (≥4% or not) failed to show prognostic significance, whereas renal involvement was a significant prognostic factor associated with poor survival. CONCLUSIONS.: Both proposed consensus criteria have major pitfalls in their use as uniformly accepted diagnostic criteria for TMA. The use of O-TMA as a broad definition for TMA and the grading system by the presence of renal involvement may be a counterproposal for future trials.
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Cho, Seok-Goo,Kim, Nayoun,Sohn, Hyun-Jung,Lee, Suk Kyeong,Oh, Sang Taek,Lee, Hyun-Joo,Cho, Hyun-Il,Yim, Hyeon Woo,Jung, Seung Eun,Park, Gyeongsin,Oh, Joo Hyun,Choi, Byung-Ock,Kim, Sung Won,Kim, Soo Wh Nature Publishing Group 2015 MOLECULAR THERAPY Vol.23 No.8
<P>Extranodal NK/T-cell lymphoma (ENKTCL) is associated with latent Epstein-Barr virus (EBV) infection and frequent relapse even after complete response (CR) to intensive chemotherapy and radiotherapy. The expression of EBV proteins in the tumor provides targets for adoptive immunotherapy with antigen-specific cytotoxic T cells (CTL). To evaluate the efficacy and safety of EBV latent membrane protein (LMP)-1 and LMP-2a-specific CTLs (LMP1/2a CTLs) stimulated with LMP1/2a RNA-transferred dendritic cells, we treated 10 ENKTCL patients who showed complete response to induction therapy. Patients who completed and responded to chemotherapy, radiotherapy, and/or high-dose therapy followed by stem cell transplantation (HDT/SCT) were eligible to receive eight doses of 2 × 10<SUP>7</SUP> LMP1/2a CTLs/m<SUP>2</SUP>. Following infusion, there were no immediate or delayed toxicities. The 4-year overall survival (OS) and progression-free survival (PFS) were 100%, and 90% (95% CI: 71.4 to 100%) respectively with a median follow-up of 55·5 months. Circulating IFN-γ secreting LMP1 and LMP2a-specific T cells within the peripheral blood corresponded with decline in plasma EBV DNA levels in patients. Adoptive transfer of LMP1/2a CTLs in ENKTCL patients is a safe and effective postremission therapeutic approach. Further randomized studies will be needed to define the role of EBV-CTLs in preventing relapse of ENKTCL.</P>
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Cho, Byung-Sik,Min, Gi-June,Park, Sung-Su,Shin, Seung-Hwan,Yahng, Seung-Ah,Jeon, Young-Woo,Yoon, Jae-Ho,Lee, Sung-Eun,Eom, Ki-Seong,Kim, Yoo-Jin,Lee, Seok,Min, Chang-Ki,Cho, Seok-Goo,Kim, Dong-Wook,Le Elsevier 2019 BIOLOGY OF BLOOD AND MARROW TRANSPLANTATION Vol.25 No.10
<P><B>ABSTRACT</B></P> <P>The absence of relevant guidelines for <I>Wilms tumor 1</I> (<I>WT1</I>) gene quantification as a measurable residual disease (MRD) assessment for patients with acute myeloid leukemia (AML) undergoing allogeneic hematopoietic stem cell transplantation (allo-HSCT) has limited the widespread use in practice. We investigated optimal time points, thresholds, and candidates for the bone marrow <I>WT1</I> MRD assay in 425 consecutive patients with AML who underwent allo-HSCT. <I>WT1</I> expression kinetics before allo-HSCT and at 1 or 3 months after allo-HSCT were determined by real-time PCR using the European LeukemiaNet (ELN) normalized method. Relapsed patients had significantly higher <I>WT1</I> levels before allo-HSCT and at 3 months after allo-HSCT. The best time point for the <I>WT1</I> MRD assay was before allo-HSCT by the receiver operating characteristic curve. Among various thresholds, 250 copies recommended from ELN researchers were mostly predictive of post-transplant relapse. In multivariate analysis, <I>WT1</I> MRD positivity independently predicted relapse, resulting in inferior survival. In subgroup analyses, pretransplant <I>WT1</I> MRD positivity was predictive of post-transplant relapse in the intermediate group, whereas <I>WT1</I> MRD positivity occurred at 3 months after allo-HSCT in favorable and adverse risk groups. Among MRD-positive patients before allo-HSCT, all patients who were MRD positive at 3 months relapsed within 6 months. The <I>WT1</I> MRD assay before allo-HSCT or 3 months after allo-HSCT is useful for predicting post-transplant relapse with a different significance in each risk group by time points, showing the benefit of multiple tests over time. Such monitoring is particularly available in patients with AML without specific molecular targets.</P> <P><B>Highlights</B></P> <P> <UL> <LI> <I>WT1</I> assay is useful for predicting post-transplant relapse in acute myeloid leukemia (AML). </LI> <LI> Optimal threshold for the <I>WT1</I> assay would be 250 copies/10<SUP>4</SUP> copies of <I>ABL1</I>. </LI> <LI> <I>WT1</I> assay is particularly available in AML without specific molecular targets. </LI> <LI> <I>WT1</I> assay in each risk group by time points have different significance. </LI> </UL> </P>
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Cho, Byung-Sik,Kim, Yoo-Jin,Cho, Seok-Goo,Kim, Sung-Yong,Eom, Ki-Seong,Kim, Hee-Je,Lee, Seok,Min, Chang-Ki,Kim, Dong-Wook,Lee, Jong-Wook,Min, Woo-Sung,Kim, Chun-Choo Springer-Verlag 2007 INTERNATIONAL JOURNAL OF HEMATOLOGY Vol.85 No.5
<P>Allogeneic hematopoietic stem cell transplantation following reduced-intensity stem cell transplantation (RIST) has enabled the treatment of older or medically infirm patients with myeloid malignancies; however, determining the value of RIST outcomes for myelodysplastic syndrome (MDS) is difficult because of the heterogeneity of the diseases included in most trials. To define the role of RIST in MDS, we performed RIST for 22 consecutive patients who had de novo MDS as classified by World Health Organization (WHO) criteria and who received an allograft with fludarabine/busulfan (Busulfex) or fludarabine/Busulfex/antithymocyte globulin (ATG) conditioning. Nineteen patients (86.4%) achieved engraftment. At a median follow-up of 18.9 months (range, 13.1-24.8 months), the estimated 2-year rates of overall survival, event-free survival (EFS), transplantation-related mortality, and relapse were 78.7%, 67.7%, 12.6%, and 22.5%, respectively. Acute graft-versus-host disease (GVHD) greater than grade II developed in 3 patients (15.8%). Chronic GVHD developed in 10 patients (55.6%), none of whom received ATG as a conditioning regimen. Variables influencing EFS were chronic GVHD, marrow blasts before transplantation, and the WHO criteria. The present study clarifies the benefits of the fludarabine/Busulfex-based conditioning regimen for de novo MDS diagnosed according to the WHO criteria and shows that chronic GVHD appears to have a beneficial effect on survival rates, which are strongly associated with graft-versus-tumor effects.</P>
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