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- 저자 : ( Soon Beom Kang ) (검색결과 343 건)
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Kang, Sokbom,Kim, Jae Weon,Kang, Gyeong Hoon,Lee, Sun,Park, Noh Hyun,Song, Yong Sang,Park, Sang Yoon,Kang, Soon Beom,Lee, Hyo Pyo Alan R. Liss, Inc 2006 International journal of cancer Vol.118 No.9
<P>The incidence of cervical adenocarcinoma (CA) is rising, whereas the incidence of cervical squamous cell carcinoma (CSCC) continues to decrease. However, it is still unclear whether different molecular characteristics underlie these 2 types of cervical carcinoma. To better understand the epigenetic characteristics of cervical carcinoma, we investigated the DNA promoter hypermethylation profiles in CA and CSCC. In addition, we investigated whether DNA hypermethylation patterns might be used for the molecular diagnosis of CA and endometrial adenocarcinoma (EA). Using the bisulfite-modification technique and methylation-specific PCR, we examined the aberrant promoter hypermethylation patterns of 9 tumor suppressor genes (APC, DAPK, CDH1, HLTF, hMLH1, p16, RASSF1A, THBS1 and TIMP3) in 62 CSCCs, 30 CAs and 21 EAs. After Bonferroni correction adjustment (statistically significant at p < 0.0055), we found that the aberrant hypermethylations of CDH1 and DAPK were more frequent in CSCCs than in CAs (80.6% vs. 43.3%, p = 0.001; 77.4% vs. 46.7%, p = 0.005), whereas HLTF and TIMP3 were more frequently methylated in CAs (3.2% vs. 43.3%, p < 0.001; 8.1% vs. 53.3%, p = 0.001). The hypermethylations of RASSF1A and APC were more frequent in CAs than in CSCCs, but this was not significant (9.7% vs. 33.3%, p = 0.008; and 14.5% vs. 40.0%, respectively, p = 0.009). In addition, RASSF1A hypermethylation was significantly more frequent in EAs than in CAs (81.0% vs. 33.3%, p = 0.001). In conclusion, the existence of these unique methylation patterns in these cancers suggests that their tumorigenesis may involve different epigenetic mechanisms. © 2005 Wiley-Liss, Inc.</P>
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강순양 ( Soon Yang Kang ),이수범 ( Soo Beom Lee ),임준범 ( Joon Beom Lim ) 한국안전학회 2017 한국안전학회지 Vol.32 No.2
Appropriate speed limits at a reasonable level in urban roads are highly important factors for efficient and safe movement. Thus, it is greatly necessary to develop the objective models or methodology based on engineering study considering factors such as traffic accident rates, roadside development levels, and roadway geometry characteristics etc. The purpose of this study is to develop the estimate model of appropriate speed limits at each road sections in urban roads using traffic information big data and field specific data and to review the effects of accident decrease. In this study, the estimate method of appropriate speed limits in directional two or more lanes of urban roads is reflecting features of actual variables in a form of adjustment factor on the basis of the maximum statutory speed limits. As a result of investigating and testing influential variables, the main variables to affect the operating speed are the function of road, the existence of median, the width of lane, the number of traffic entrance/exit path and the number of traffic signal or nonsignal at intersection and crosswalk. As a result of testing this model, when the differences are bigger between the real operating speed and the recommended speed limits using model developed in this study, the accident rate generally turns out to be higher. In case of using the model proposed in this study, it means accident rate can be lower. When the result of this study is applied, the speed limits of directional two or more lane roads in Seoul appears about 11km/h lower than the current speed limits. The decrease of average operating speed caused by the decrease of speed limits is 2.8km/h, and the decrease effect of whole accidents according to the decrease of speed is 18% at research road. In case that accident severity is considered, the accident decrease effects are expected to 17~24% in fatalities, 11~17% in seriously injured road user, 6~9% in slightly injured road user, 5~6% in property damage only accidents.
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최신임상강좌 : 부인종양의 진단과 치료에서 양전자단층촬영술의 역할
강순범 ( Soon Beom Kang ) 대한산부인과학회 2008 Obstetrics & Gynecology Science Vol.51 No.4
The utility of positron emission tomography (PET) in gynecologic malignancy has been increased rapidly in recent years. PET scans are mostly performed using 18-fluorodeoxyglucose (FDG-PET). It is valuable for primary staging of untreated advanced cervical cancer, for evaluating unexplained tumor marker elevation after treatment and for restaging of potentially curable recurrent cervical cancer. Its value in early-stage cervical cancer is limited. In ovarian cancer, sequential imaging predicts both response to neoadjuvant chemotherapy and survival. It also provides benefits when serum CA-125 was elevated or computed tomography/magnetic resonance imaging defined recurrence is noted but biopsy deemed infeasible. A few studies have shown that FDG-PET may facilitate optimal management of endometrial cancer, especially for post-therapy surveillance and after salvage therapy. FDG-PET is potentially useful in selected gestational trophoblastic neoplasia by monitoring response and localizing viable tumors after chemotherapy. Scanty studies have been reported in vulvar and vaginal cancer. The methodology and prospects of using integrated PET/computed tomography (PET-CT) in the management of gynecological cancer are discussed. The role of PET or PET-CT has evolved from a diagnostic tool into a potential indicator of both response to treatment and prognosis. Evaluating this tool by clinical impact is an attractive end point.
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강순범(Soon Beom Kang),이철민(Chul Min Lee),오수영(Su Young Oh),노주원(Ju Weon Roh),김용범(Yong Beom Kim),김재원(Jae Weon Kim),박노현(Noh Hyun Park),송용상(Yong Sang Song),이호표(Hyo Pyo Lee) 대한산부인과학회 1999 Obstetrics & Gynecology Science Vol.42 No.9
Objective: This study was performed to identify the prognostic factor for survival of patients with recurrent cervical cancer. Methods: Sixty-eight patients were diagnosed as recurrent cervical cancer at the Seoul National University Hospital from January, 1988 to December, 1998. Recurrence was defined as new evidence of tumor after 6 months of disease free survival. Retrospective analysis was done in terms of clinical features and the Cox proportional hazard model was used to identify independent variables associated with an improved survival rate. Histopathologic types were distributed as follows; squamous cell carcinoma in 70.6%, adenocarcinoma in 11.8%, adenosquamous cell carcinoma in 11.8%, and small cell carcinoma in 1.5%. Distribution of FIGO stage was as follows; stage I in 25.0%, stage II in 66.2%, and stage III in 4.4%. Sites of recurrence were as follows; central pelvic recurrence in 44.1%, pelvic side wall recurrence in 11.8%, and distant metastasis in 44.1% and the most common site of distant recurrence was extrapelvic lymph nodes (29.4%). 29.4% of recurrences were observed within the first 12 months after initial therapy, 50.0% within 2 years and 64.7% within 3 years. Results: Positive rate of SCC-Ag at initial diagnosis was 45.2% with cutoff value of 2.0 ng/ml. Positive rate of SCC-Ag at the diagnosis of recurrence was 60.0%. Overall response rate to the treatment was 29.1%. Complete response rate was higher in central pelvic recurrrence than pelvic side wall recurrence and distant metastasis (P = 0.002) and also higher in normal SCC-Ag level (≤ 2.0 ng/ml) at the diagnosis of recurrence than elevated level (P = 0.032). Cumulative survival rates of 1 year after recurrence was 66.8%, 2 year 36.7%, and 5 year 18.7%. Central recurrence showed higher cumulative survival rate than pelvic side wall or distant recurrence (P = 0.029). The patients with elevated SCC-Ag level at the time of diagnosis of recurrence showed lower cumulative survival rate than those with normal SCC-Ag level (P < 0.001). Cox proportional hazard model showed that SCC-Ag elevation at the time of diagnosis of recurrence retained significant values in predicting survival(OR = 2.56; 95% CI = [1.22-5.39]; P = 0.01). Conclusion: SCC-Ag elevation at the diagnosis of the recurrence is a strong independent prognostic indicator for survival of patients with recurrent cervical cancer.
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