대망에 발생한 방선균증 1례

송상훈,심찬섭,이문성,김진오,조주영,김영석,문종호,이진우 순천향의학연구소 1999 Journal of Soonchunhyang Medical Science Vol.5 No.1

Actinomycosis is an uncommon chronic suppurative disease characterized by multiple abscess, draining sinuses, abundant granulation, and dense fibrous tissue, caused by the actinomyces organisms. It occurs in three major sites: cervicofacial, abdominal, and thoracic. The abdomen is the second most common involved site in previous studies, and there are three ways this organism can affect the gastrointestinal tract: through a blood-borne infection, by swallowing, or by proliferation at a more distal intestinal area. Abdominal actinomycosis is an unusual disease but remains an important differential diagnosis in patients with abdominal mass. Obtaining the diagnosis is difficult and rarely made preoperatively, but provide the key to its management. Medical therapy is effetive in eradicating the disease; however, because of the large amount of reactive fibrosis formed by the infection, it requires long-term therapy. Surgical treatment may be essential in many cases, primarily when malignancy cannot be excluded or if extensive necrotic tissue exists. There are a few description for actinomycosis involving omentum. We report a case of patient with omental actinomycosis, suspected to have a malignancy requiring an exploratory laparotomy with resection.

상부소화관출혈에 있어서 내시경적 분말약제산포의 효과

김상균,조주영,송상훈,김진오,이준성,이문성,심찬섭 순천향의학연구소;Soonchunhyang Medical Research Institute 2000 Journal of Soonchunhyang Medical Science Vol.6 No.1

Background : Bleeding after endoscopic procedure of the stomach carries an increased risk of morbidity and mortality. In case of oozing hemorrhage, not in active hemorrhage, powdered sodium alginate may play a role in control of bleeding with convenience. Therefore, we evaluated the clinical effect and efficacy of sodium alginate powder in upper G-Ⅰ bleeding. Methods : Forty-five patients who had upper G-Ⅰ bleeding after endoscopic procedure were enrolled in this study. Twenty-five patients of them were managed by the application of powder preparation of Sodium alginate(ALTO). The others were observed without treatment. The next day, we performed endoscopy in all patients to ascertain the hemostasis. Results : Of 25 patients managed with Sodium alginate, only two patients(8%) had bleeding (hemostatic rate : 92%), On the other hand, of 20 patients who did not receive any treatment, 3 patient(15%) had bleeding (hemostatic rate : 85%). There was no statistical difference between the two groups(p>0.05). Using other endoscopic procedure, We successfully treated the patient who continued to bleed. Conclusion : We evaluated the effect of the spary of sodium alginate on oozing hemorrhage. Although there was no statistical significance in our study, it seems that the spray of sodium alginate may be a useful method for the prevention of bleeding after endoscopic procedure.

Development of a Theranostic Convergence Bioradiopharmaceutical for Immuno-PET Based Radioimmunotherapy of L1CAM in Cholangiocarcinoma Model

Song, In Ho,Jeong, Mun Sik,Hong, Hyo Jeong,Shin, Jong Il,Park, Yong Serk,Woo, Sang-Keun,Moon, Byung Seok,Kim, Kwang Il,Lee, Yong Jin,Kang, Joo Hyun,Lee, Tae Sup American Association for Cancer Research 2019 Clinical Cancer Research Vol.25 No.20

<P><B>Purpose:</B></P><P>Cholangiocarcinoma is a malignancy of bile duct with a poor prognosis. Conventional chemotherapy and radiotherapy are generally ineffective, and surgical resection is the only curative treatment for cholangiocarcinoma. L1-cell adhesion molecule (L1CAM) has been known as a novel prognostic marker and therapeutic target for cholangiocarcinoma. This study aimed to evaluate the feasibility of immuno-PET imaging–based radioimmunotherapy using radiolabeled anti-L1CAM antibody in cholangiocarcinoma xenograft model.</P><P><B>Experimental Design:</B></P><P>We prepared a theranostic convergence bioradiopharmaceutical using chimeric anti-L1CAM antibody (cA10-A3) conjugated with 1,4,7-triazacyclononane-1,4,7-triacetic acid (NOTA) chelator and labeled with <SUP>64</SUP>Cu or <SUP>177</SUP>Lu and evaluated the immuno-PET or SPECT/CT imaging and biodistribution with <SUP>64</SUP>Cu-/<SUP>177</SUP>Lu-cA10-A3 in various cholangiocarcinoma xenograft models. Therapeutic efficacy and response monitoring were performed by <SUP>177</SUP>Lu-cA10-A3 and <SUP>18</SUP>F-FDG-PET, respectively, and immunohistochemistry was done by TUNEL and Ki-67.</P><P><B>Results:</B></P><P>Radiolabeled cA10-A3 antibodies specifically recognized L1CAM <I>in vitro</I>, clearly visualized cholangiocarcinoma tumors in immuno-PET and SPECT/CT imaging, and differentiated the L1CAM expression level in cholangiocarcinoma xenograft models. <SUP>177</SUP>Lu-cA10-A3 (12.95 MBq/100 μg) showed statistically significant reduction in tumor volumes (<I>P</I> < 0.05) and decreased glucose metabolism (<I>P</I> < 0.01). IHC analysis revealed <SUP>177</SUP>Lu-cA10-A3 treatment increased TUNEL-positive and decreased Ki-67-positive cells, compared with saline, cA10-A3, or <SUP>177</SUP>Lu-isotype.</P><P><B>Conclusions:</B></P><P>Anti-L1CAM immuno-PET imaging using <SUP>64</SUP>Cu-cA10-A3 could be translated into the clinic for characterizing the pharmacokinetics and selecting appropriate patients for radioimmunotherapy. Radioimmunotherapy using <SUP>177</SUP>Lu-cA10-A3 may provide survival benefit in L1CAM-expressing cholangiocarcinoma tumor. Theranostic convergence bioradiopharmaceutical strategy would be applied as imaging biomarker-based personalized medicine in L1CAM-expressing patients with cholangiocarcinoma.</P>

A High Breakdown and Efficient GM-Estimator in Linear Models

Song, Moon-Sup,Park, Changsoon,Nam, Ho-Soo The Korean Statistical Society 1996 Journal of the Korean Statistical Society Vol.25 No.4

In this paper we propose an efficient scoring type one-step GM-estimator, which has a bounded influence function and a high break-down point. The main point of the estimator is in the weighting scheme of the GM-estimator. The weight function we used depends on both leverage points and residuals So we construct an estimator which does not downweight good leverage points Unider some regularity conditions, we compute the finite-sample breakdown point and prove asymptotic normality Some simulation results are also presented.

담석의 초음파상과 성분분석에 관한 비교 연구

송영식,김진홍,문철,이준성,이문호,김익수,김재준,김선주,이문성,조성원,심찬섭,유희,허경발,김훈식 대한소화기학회 1992 대한소화기학회지 Vol.24 No.5

Although the treatment of gallbladder stones is mainly dependent on surgical intervention, recently medical treatment such as oral bill acid therapy, dissolution therapy with MTBE or extracorpareal shock wave lithotripy have been also performd. For the auccess, of these medical therapy. the composition of gallbaddser stones is a important factor. So, to predict the comical composition, we examined 100 cases of the surgically removed gallblraldder stoned by ultrasonaraphy. And we compared the ultrasonograplic findings of gallbladder stones with the chemical compotions and the features of cut surface. Alan we compared the presence of the calcification on the simple abdominal X-ray. The chemical components of gallbladder stones were analysed by ultrared spectrometer. Ultrasonographic findings were claesafied into five characeristic types; the shooting-star (SS) type, the crescent (C) type the half-moon (HM) kype, the full-moon (FM) type anal the star-dust (SD) type. The roved as fallows. In chemical compositions of gallstones, 67 cases (67%) were cholesterol stones with 26 eases (2^%) of pure cholesterol stones, and 30 cases (30%) of cholesterol-bilirubinate stones, bilruastnate stone were 25 cases (25%), calcium-carbanate stones were 7 cases (7%), and calcium pltcasphate stone was 1 case (1%). In ultrasonograhic fielding of gallstones, the SS types were 24 cases (24%), the C types 43 cases (43%), the FM types 16 uses (16%), the HM types 14 cases (14%) and the SD types were 3 cases (3%). In the relationship between tcltrasonographic findings and cheat composition, tine SS type itrcluded cholestro stones with 21 cases (88%). The C type included cholesterol stones with 30 cases (70%) and bilirubinate stones with 13 cases (13%). The HM types included chstrol stones with 9 cases (64%), bilruinate stones with 3 gases (24%) and calcium carbonate stones with 2 cases (14%). The FM types inch cholesterol stones with 5 cases (31%), bilirubinate stone with 6 cases (38%), calcium carbons a stones with 4 canes (25%), and calcium phosphate stone with 1 case (6%). The SD types incitude cholesterol stone with 2 cases (67%) and hilirubinatie stone with 1 case (33%). Cholesterol stone were found mainly in the C type (45%) and the SS type (31%). Bilirubinate stones were found mainly in the C type (52%) and the FM type (24%). In comparison between the presence of calcification on the simple abdominal X-ray and the chemical composition with ultrasonographic findings, 9 of 100 cases of gallbladder stones showed calcification on the simple abdominal X-ray with 2 choleBterol stonecs; 5 bilirulalnabe stone, 2 calciim carbonate stones. Non-cholesterol stones showed more frequent calcification finding than eholeacrol stones. In the features of the cut surfaces of the 100 gallbladder stones, the concenteric types were 64 cases (64%), the homogenous types were cases (26%), and to radiating types were 10 cases (10%). And there was no correlation between the features of the cutsurfaces of gallbladder stones and the ultrarsorographic findings. , In conclusion, the classification of ultrasonographic findings are useful to predict, the chemical compositions of gallblardder stones and to decide on the therapeutic method of gallbladder stones.

Immuno-PET Imaging and Radioimmunotherapy of ⁶⁴Cu-/¹⁷⁷Lu-Labeled Anti-EGFR Antibody in Esophageal Squamous Cell Carcinoma Model

Song, In Ho,Lee, Tae Sup,Park, Yong Serk,Lee, Jin Sook,Lee, Byung Chul,Moon, Byung Seok,An, Gwang Il,Lee, Hae Won,Kim, Kwang Il,Lee, Yong Jin,Kang, Joo Hyun,Lim, Sang Moo Society of Nuclear Medicine 2016 The Journal of nuclear medicine Vol.57 No.7

<P>Immuno-PET provides valuable information about tumor location, phenotype, susceptibility to therapy, and treatment response, especially to targeted radioimmunotherapy. In this study, we prepared antiepidermal growth factor receptor (EGFR) antibody via identical chelator, 3,6,9,15-tetraazabicyclo[9.3.1]-pentadeca-1(15),1 1,13-trience-3,6,9,-triacetic acid (PCTA), labeled with Cu-64 or Lu-177 to evaluate the EGFR expression levels using immuno-PET and the feasibility of radioimmunotherapy in an esophageal squamous cell carcinoma (ESCC) model. Methods: Cetuximab was conjugated with p-SCN-Bn-PCTA and radiolabeled with Cu-64 or Lu-177. In vitro EGFR expression levels were determined and compared using flow cytometry and cell binding assay. In vivo EGFR expression levels were evaluated via immuno-PET imaging of Cu-64-cetuximab and biodistribution analysis. Micro-SPECT/CT imaging, biodistribution, and radioimmunotherapy studies of Lu-177-cetuximab were performed in the ESCC model. Therapeutic responses were monitored using F-18-FDG PET and immunohistochemical staining. Results: Cu-64- or Lu-177-labeled antibodies showed high radiolabeling yield (>98%), stability (>90%), and favorable immunoreactivity. In vitro EGFR status measured by cell binding assay was correlated with the flow cytometry data. Immuno-PET, micro-SPECT/CT, and biodistribution demonstrated specific uptake in ESCC tumors depending on the EGFR expression levels. Tumor accumulation of Cu-64- and Lu-177-cetuximab was peaked at 48 and 120 h, respectively. Radioimmunotherapy with Lu-177-cetuximab showed significant inliibition of tumor growth (P < 0.01) and marked reduction of F-18-FDG SUV compared with that of control (P < 0.05) Terminal deoxynucleotidyl transferase dUTP nick-end labeling positivity and Ki-67 staining indices increased and decreased, respectively, in the radioimmunotherapy group compared with other groups (P < 0.01). Conclusion: Cu-64-cetuximab immuno-PET represented EGFR expression levels in ESCC tumors, and Lu-177-cetuximab radioimmunotherapy effectively inhibited the tumor growth. The diagnostic and therapeutic convergence radiopharmaceutical Cu-64-/Lu-177-PCTA-cetuximab may be useful as a diagnostic tool in patient selection and a potent radioimmunotherapy agent in EGFR-positive ESCC tumors.</P>

Use of the Linear Placement Statistics for the Par - allelism of Two Regression Lines

( Moon Sup Song,Hong Nai Park,Kay O Lee,Byeong Uk Park,Bong Sup Shin ) 한국품질경영학회 1992 품질경영학회지 Vol.20 No.2

A Study on the Bias Reduction in Split Variable Selection in CART

Song, Hyo-Im,Song, Eun-Tae,Song, Moon Sup 한국통계학회 2004 Communications for statistical applications and me Vol.11 No.3

In this short communication we discuss the bias problems of CART in split variable selection and suggest a method to reduce the variable selection bias. Penalties proportional to the number of categories or distinct values are applied to the splitting criteria of CART. The results of empirical comparisons show that the proposed modification of CART reduces the bias in variable selection.

On a Distribution - Free Test for Parallelism of Regression Lines Against Ordered Alternatives

( Moon Sup Song,Moon Yul Huh,Hee Jeong Kang ) 한국품질경영학회 1987 품질경영학회지 Vol.15 No.2

BETA ALTERNATIVES AND BETA SCORES TWO-SAMPLE RANK TEST

SONG, MOON SUP Korean Mathematical Society 1977 대한수학회지 Vol.14 No.1