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김승주,손길수,목영재 대한소화기학회 1999 대한소화기학회지 Vol.33 No.3
Background/Aims: p27 is a cyclin-dependent kinase inhibitor with potential tumor supressor func tion. Reduced expression of p27 has been correlated with poor prognosis in patients with breast and colorectal cancers. In the present study, we assessed p27 expression in patients with gastric adenocar cinoma in relation to their clinicohistological features and prognosis. Methods: We evaluated p27 expression for 61 patients with gastric adenocarcinomas using the immunohistochemical staining and the results were analyzed regarding the survival and clinico-pathological parameters. Results: Immu noreactivity for p27 protein was detected in 22 patients (36.1%). The expression of p27 protein wa not correlated with age, sex, site, tumor invasion, tumor size, lymph node metastasis, distant metas tasis, or stage except histologic subtype (p=0.028). Survival curves revealed that the prgnosis was no significantly different between patients with p27 expression and those without p27 expression (p= 0.420). Conclusions: Immunohisto-chemical analysis of p27 might be not useful for evaluating the functional status of patients with gastric adenocarcinoma.
류동도,엄준원,손길수,조민영,송태진,김종석,목영재,김승주,Ryu Dong Do,Um Jun Won,Son Gil Soo,Cho Min young,Song Tae Jin,Kim Chong Suk,Mok Young Jae,Kim Seung Joo 대한위암학회 2003 대한위암학회지 Vol.3 No.3
Purpose: Because of an improving gastric cancer detection program and treatment methods, we can expect improved survival of patients with gastric cancer. Given the longer survival times, the chance of an occurrence of multiple primary malignant tumors other than stomach is increased in the same patients. The purpose of this study is to analyze the clinical characteristrics and the survival of patients with gastric cancer and other malignancies. Materials and Methods: A retrospective study of 3669 patients with gastric cancer observed at our department between January 1994 to December 2002 was conducted. Associated tumors were diagnosed using the Warren and Gates criteria, and included tumors that were not considered to be a metastasis, invasion, or recurrence of the gastric cancer. Results: Of all 3669 patients, $2.07\%$ (n=76) had primary tumors other than gastric cancer, $63\%$ of which were synchronous (n=48) and $37\%$ metachronous (n=28). The mean age of the study group was 64.9 (65.5 in males, 61.8 in females), and the male-to-female ratio was 4.8 : 1. The most common cancer associated with gastric cancer was a hepatocellular carcinoma ($23.7\%$), followed by colorectal cancer ($17.1\%$), esophageal cancer ($10.5\%$), breast cancer ($6.6\%$). Of the 45 patients who had undergone a resection, 14 were in stage I, 12 in stage II, 13 in stage III, and 6 in stage IV. No statistically significant differences were found between the synchronous and the metachronous groups with regard to age, sex ratio, differentiation, and stage. The 5-year survival rates of the metachronous and the resected patients were significantly higher than those of the synchronous and the non resected patients, respectively. Conclusion: Due to increasing length of the follow-up period for patients with gastric cancer, another malignancy may develop in other organs. Therefore, physicians should pay attention to detect other cancers early in these patients, and a surgical resection is recommended as the treatment of choice in the management of multiple primary cancer associated with gastric cancer.
정연하,장태준,손길목,노영수,곽희로,Jung, Yeon-Ha,Jang, Tae-Jun,Shong, Kil-Mok,Roh, Young-Su,Kwak, Hee-Ro 한국조명전기설비학회 2007 조명·전기설비학회논문지 Vol.21 No.2
본 논문에서 전극간 표면누설에 의한 탄화도전로의 형성과 방향성에 대해 연구하였다. 표면에서 트래킹의 특성은 노출된 충전부사이에서 절연파괴되었다. 고속카메라시스템을 이용하여 전극간 방전과 지락, on/off 서어지에서 발생되는 아크성장 메커니즘을 촬영하고, 결과를 분석하였다. 향후 아크제어를 통한 에너지 이용기술의 적용이 기대된다. In this paper, we are studied on the direction and formation of carbonized conductive path according to surface leakage current between electrodes. The characteristics of the tracking as surface is broken down between exposed live parts. Using the HSIS(high speed imaging system. 100,000[fps], redlake ltd., USA), it took photographs by arc growth mechanism occurred in on/off surge, ground fault and discharge between electrodes. Then the results was analyzed. Hereafter, it expected effects that application of energy utility technology through the arc control.