• 대한두경부종양학회지
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• 제15권1호
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• pp.22-28
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• 1999

Purpose: We performed this study retrospectively to evaluate local control, survival, prognostic factors, and failure patterns in patients with non-Hodgkin's lymphoma of Waldeyer's ring. Materials and Methods: From April 1984 to November 1996,41 patients with non-Hodgkin's lymphoma of Waldeyer's ring were treated with combined chemotherapy and radiation therapy. Age was ranged from 19 to 73 years old with a median age of 55 years, and there were 26 male and 15 female patients. Primary site was tonsil in 26 and base of the tongue in 7 and nasopharynx in 8, and stage distribution showed stage I in 12 and stage II in 29 patients. Pathologic classification was done according to Working Formulation. There were 1 with follicular mixed small cleaved and large cell, 8 with diffuse small cleaved cell, 7 with diffuse mixed small and large cell, and 25 cases with diffuse large cell. All patients were treated with combination of chemotherapy and radiation therapy. Chemotherapy regimen consisted of either CHOP-Bleo(cyclophosphamide, adriamycin, vincristine, prednisolone, bleomycin) or COP-BLAM III(cyclophosphamide, vincristine, prednisolone, bleomycin, adriamycin, procarbazine). Radiation dose ranged from 3600cGy to 6620cGy with a median dose of 5040cGy. Follow-up time was ranged from 15 months to 159 months(median 55 months). Results: The complete response was achieved in 98%(40/41) and partial response in 2%(1/41). The complete response rate were the followings: 66.7% for stage I and 51.7% for stage II after chemotherapy, 100% for stage I and 96.6% for stage II after overall treatment respectively. The overall survival rate and disease-tree survival rates at 5 years were 82.6% and 79.5%, respectively. Prognostic factors for overall survival were age(p=0.007), stage(p=0.03), nodal status(p=0.006) and radiation dose(p=0.003). The factors associated with disease-tree survival were stage(p=0.04), nodal status(p=0.004) and radiation dose(p=0.009). The failure patterns were analized in evaluable 35 patients with complete response. Locoregional failure was noted in 2 patients and distant metastasis in 5 patients. Conclusion: Our results suggest that combined modality therapy is the appropriate treatment for stage I-II intermediate grade non-hodgkin's lymphoma of the Waldeyer's ring. However, our material is small and the analysis is retrospective. Randomized prospective studies for combined therapy, radiation therapy alone and chemotherapy alone are needed.

• Radiation Oncology Journal
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• 제26권4호
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• pp.247-256
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• 2008

목 적: 직장암에서 수술 전 동시적 항암화학방사선요법을 시행한 환자를 대상으로 항문 괄약근 보존율, 생존율, 예후인자 등을 알아보고자 하였다. 대상 및 방법: 1999년 1월부터 2007년 6월까지 직장암 환자로 진단되어 수술 전 동시적 항암화학방사선요법을 시행한 환자는 모두 150명이었다. 이 중 진단시 원격전이가 없고 재발암이 아니며 본원에서 근치적 수술을 받은 환자 중 계획된 방사선치료를 완료한 총 82명의 환자를 대상으로 하였다 방사선치료는 일일 $1.8{\sim}2\;Gy$씩, 주 5회 $41.4{\sim}46\;Gy$ (중앙값 44 Gy)를 전 골반에 조사한 후 원발부위 및 고위험 부위에 총 방사선량이 $43.2\;Gy{\sim}54\;Gy$(중앙값 50.4 Gy)까지 추가 조사하였다. 항암화학요법은 66명(80.5%)에서 5-fluorouracil (5-FU), leucovorin, cisplatin을 정주하였고, 15명(19.5%)에서는 5-FU와 leucovorin만을 정주하여 방사선치료 기간 동안 4주 간격으로 2회 시행되었다. 수술은 동시적 항암화학방사선치료 종료 후 $3{\sim}45$주(중앙값 7주)가 경과되어 시행되었다. 수술 후 유지 항암화학요법은 총 38명(47.6%)에서 시행되었다. 결 과: 전체 환자의 항문 괄약근 보존율은 73.2%(60명)이었다. 이 중 종양의 최하 위치가 항문연으로부터 5 cm 미만인 환자 48명중 31명(64.6%)에서, 5 cm 이상인 환자 34명 중 29명(85.3%)에서 항문 괄약근을 보존할 수 있었다. 수술 후 병리적 완전관해율은 14.6% (12/82)였다. 전체 환자의 T병기 하강률은 42.7% (35/82)였고, N병기 하강률은 75.5% (37/49)였으며, 전체 병기 감소율은 67.1% (55/82)였다. 전체 환자의 추적 관찰 기간은 $11{\sim}107$ 개월로 중앙값은 38개월이었다. 전체 환자의 5년 생존율, 무병생존율 및 국소종용제어율은 각각 67.4%, 58.9%, 84.4%였다. 수술 후 병기별 5년 생존율은 0 (n=12), I (n=16), II (n=30), III (n=23)기에서 각각 100%, 59.1%, 78.6%, 36.9%이었고 IV 병기 1예는 43개월 현재 생존 중이다(p=0.02). 병기별 5년 무병생존율은 0, I, II, III, IV 기에서 각각 77.8%, 63.6%, 58.9%, 51.1%, 0%였다(p<0.001). 병기별 5년 국소종양제어율은 0, I, II, III기 에서 각각 88.9%, 93.8%, 91.1%, 68.2%였고 IV병기 1예는 43개월 현재 국소재발 없이 생존 중이다(p=0.01). 생존율에 영향을 미치는 예후인자를 분석하기 위하여 연령(${\geq}55$세 VS. >55세), 임상적 병기(I+II vs, III), 방사선치료 종료 후 수술까지의 경과기간(${\leq}6$주 vs. >6주), 수술방법 (항문괄약근보존술 vs. 비보존술), 병리학적 T병기, 병리학적 N 병기, 병리학적 전체병기(0 vs. I+II vs. III+IV), 병리학적 완전관해여부 등 총 8개의 다변량 분석상, 연령과 병리학적 N병기는 전체 생존율에, 병리학적 전체 병기는 무병생존율에, 병리학적 N병기는 국소종양제어율에 각각 유의하였다. 전체 환자 중 재발한 환자는 모두 25명으로 국소재발 10명, 원격전이 13명, 국소 및 원격전이가 동시에 있던 환자 2명이었다 항암화학 방사선치료 중 등급 3 이상의 혈액학적 독성은 백혈구 감소가 2명이었고, 등급 3의 피부반응이 1명이었다. 수술 후 60일 이내의 입원을 요할 정도의 합병증으로는 총 11명으로 문합부 누출 5명, 골반부 농양이 2명, 그외 4명 등이었다. 결 론: 직장암에서 수술 전 동시적 항암화학방사선요법으로 병기 하강 및 항문 괄약근 보존에 유용한 결과를 얻었고, 수술 전 항암화학방사선요법으로 인한 독성은 미미하였다. 병리학적 N병기가 생존율과 국소종양제어율에 유의한 예후 인자로 나타나 이들에 대한 수술 후 보조적 요법이 더욱 강화될 필요가 있다고 생각된다.

• 한국농공학회지
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• 제18권2호
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• pp.4116-4120
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• 1976

With the use of many rivers increased nearly to the capacity, the need for information concerning daily quantities of water and the total annual or seasonal runoff has became increased. A systematic record of the flow of a river is commonly made in terms of the mean daily discharge Since. a single observation of stage is converted into discharge by means of rating curve, it is essential that the stage discharge relations shall be accurately established. All rating curves have the looping effect due chiefly to channel storage and variation in surface slope. Loop rating curves are most characteristic on streams with somewhat flatter gradients and more constricted channels. The great majority of gauge readings are taken by unskilled observers once a day without any indication of whether the stage is rising or falling. Therefore, normal rating curves shall show one discharge for one gauge height, regardless of falling or rising stage. The above reasons call for the correction of the discharge measurements taken on either side of flood waves to the theoretical steady-state condition. The correction of the discharge measurement is to consider channel storage and variation in surface slope. (1) Channel storage As the surface elevation of a river rises, water is temporarily stored in the river channel. There fore, the actual discharge at the control section can be attained by substracting the rate of change of storage from the measured discharge. (2) Variation in surface slope From the Manning equation, the steady state discharge Q in a channel of given roughness and cross-section, is given as {{{{Q PROPTO SQRT { 1} }}}} When the slope is not equal, the actual discharge will be {{{{ { Q}_{r CDOT f } PROPTO SQRT { 1 +- TRIANGLE I} CDOT TRIANGLE I }}}} may be expressed in the form of {{{{ TRIANGLE I= { dh/dt} over {c } }}}} and the celerity is approximately equal to 1.3 times the mean watrr velocity. Therefore, The steady-state discharge can be estimated from the following equation. {{{{Q= { { Q}_{r CDOT f } } over { SQRT { (1 +- { A CDOT dh/dt} over {1.3 { Q}_{r CDOT f }I } )} } }}}} If a sufficient number of observations are available, an alternative procedure can be applied. A rating curve may be drawn as a median line through the uncorrected values. The values of {{{{ { 1} over {cI } }}}} can be yielded from the measured quantities of Qr$.$f and dh/dt by use of Eq. (7) and (8). From the 1/cI v. stage relationship, new vlues of 1/cI are obtained and inserted in Eq. (7) and (8) to yield the steady-state discharge Q. The new values of Q are then plotted against stage as the corrected steadystate curve.

• Radiation Oncology Journal
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• 제2권1호
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• pp.49-58
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• 1984

53 patients of previously untreated Stage I&II Non-Hodgkin's Lymphoma in head and neck treated with irradiation at Yonsei Cancer Center from January, 1970 to December, 1978 were retrospectively analysed. 5 year survival rate and 5 year disease free survival rate were $51.5\%\;and\;42\%$. Local control rate by irradiation was $92.4\%$ with mainly $4,000\~6,000$ rads. 21 patients suffered relapses after radiotherapy, 4 cases recurred within irradiated area, 4 cases at contiguous site of irradiation field, and 13 cases recurred at distant area, more commonly below diaphragm. Most cases relapsed within 1 year 6 months after treatment. Optimum irradiation field for head and neck localized lymphoma, prognostic factors ana usefulness of chemotherapy are also discussed.

• Asian Pacific Journal of Cancer Prevention
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• 제14권5호
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• pp.2871-2877
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• 2013

Objectives: To evaluate the safety, efficacy, and invasiveness of lobectomy by video-assisted thoracoscopic surgery (VATS) in the treatment of stage I/II non-small cell lung cancer (NSCLC). Methods: A total of 148 patients presenting with Stage I or II NSCLC were enrolled into our study, comprising 71 who underwent VATS and 77 patients undergoing conventional thoracotomic lobectomy, in combination with systematic lymph node resection. Results: It was found that VATS was superior to conventional thoracotomy in terms of the duration of surgery, intraoperative blood loss, frequency of the need to administer postoperative analgesia, thoracic intubation indwelling time, post-operative hospital stay, and survival rate (P<0.05). We saw no obvious difference in the number of resected lymph nodes with either approach. Conclusions: VATS lobectomy is a safe and reliable surgical approach for the treatment of Stage I/II NSCLC, characterized by significantly minimal invasiveness, rapid post-operative recovery, and markedly lower loss of blood.

• BMB Reports
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• 제29권5호
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• pp.474-480
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• 1996

We present a study of evolutionary changes in expression of actin genes among closely related sea urchin species that exhibit different modes of early development. For this purpose, polyclonal antisera raised against peptides from the carboxyl terminus of the HeCyI cytoskeletal actin of Heliocidaris erythrogramma were used. H. erythrogramma is a direct developing sea urchin that proceeds from embryonic to adult stages without an intervening feeding larval stage. Expression patterns of the CyI actin isoform were compared with those of Heliocidaris tuberculata and to a related sea urchin Strongylocentrotus purpuratus, which both produce a feeding pluteus larval stage. The CyI actin of all three species is expressed in the same cell types. However, its expression patterns have been changed with reorganization of early cell lineage differentiation, which is apparent among the three species. Thus. evolutionary changes in CyI actin gene expression patterns are correlated with not only phylogenetic relationship, but developmental mode. The implication of this observation is that evolutionary changes in expression patterns of histospecific genes may underlie the emergence of novel developmental processes.

• Journal of Chest Surgery
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• 제21권1호
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• pp.87-100
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• 1988

The authors evaluated 200 cases of primary carcinoma of lung in terms of the cell type, operability, resectability and survival rate, that proved by histopathologic examination at the Dept. of Thoracic and Cardiovascular Surgery, Catholic Medical College during the period of 11 years from Jan., 1977 to Dec., 1987. The results are as follows; 1] The peak incidence was observed in the 7th decade of life [34%] and followed by 6th [30%] 8 5th decade [25%]. Male to female ratio was 3.4:1. 2] Histopathologic classifications were squamous cell carcinoma 48% [96 cases], adenocarcinoma 27% [34 cases], small cell carcinoma 13%[26 cases], ;bronchioloalveolar cell carcinoma 5% [10 cases], large cell carcinoma 4.5% [9 cases], adenosquamous cell carcinoma 1.5% [3 cases] and adenoalveolar cell carcinoma 0.5% [1 case]. 3] Among 200 cases of primary lung cancer, the operability was 47.5% [95 cases], refusal of operation 6.0% [12 cases] and inoperability 46.5% [93 cases]. 4] Ninety five cases [47.5%] were operated. Of these, post-surgical stage I was 18.9% [18 cases], stage II 24.2% [23 cases] and stage III 56.8% [54 cases]. Among 54 cases of stage III, 32 cases were unresectable, while 22 cases were resectable. Consequently, the resectability was 31.5% [63 cases] from the total numbers of 200 cases, and the resectability for the operable 95 cases was 66.3% [63 cases]. 5] Surgical complications were empyema with bronchopleural fistula [4 cases], G-I bleeding [1 case], tedious pleural effusion [1 case] and acute respiratory insufficiency [1 case]. Operative mortality was 3.2% [2 cases], which caused by massive G-I bleeding [1 case] and respiratory insufficiency [1 case]. 6] On the long term follow-up of resectable 63 cases, overall 3 year survival rate was 35%, 5 year 22% and 9 year 2%. Five year survival rate was 39% in stage l, 30% in stage II and 0% in stage III. As for the cell types, the higher 5 year survival rate was observed in resectable squamous cell carcinoma [35%] as compared to adenocarcinoma [15%], alveolar cell carcinoma [14%], small cell carcinoma [0%] and large cell carcinoma [0%].

• 한국발생생물학회지:발생과생식
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• 제22권4호
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• pp.369-378
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• 2018

We determined the morphologic characteristics (body weight and degree of abdomen inflation) of the red spotted grouper, Epinephelus akaara, mother fish producing healthy eggs. Experimental fish were chosen from fish reared in a sea cage. The fish were divided into four size groups by body weight: 400~600, 600~800, 800~1,000, and 1,000~1,200 g and four stages (I~IV) of the degree of abdomen inflation. After hormone treatment, we observed the amount of ovulation-induced eggs, and rates of buoyancy, fertilization, embryonic survival, and hatching. As a result, mother fish with a body weight of 600 g or more spawned, and the fertilization rate, embryonic survival rate, and hatching rate were high in the 800~1,000 g range, thus showing effective ovulation induction. As a result of dividing the degree of abdomen inflation based on the anal fin of the mother fish into I-IV stages and determining hormone treatment time, the GSI was $0.9{\pm}0.2%$ at stage I, $2.3{\pm}0.2%$ at stage II, $5.6{\pm0.2%$ at stage III, and $7.9{\pm}0.9%$ at stage IV. The flotation rate and hatching rate were highest at stage III, and the fertilization rate and embryonic survival rate were highest at stage IV. Therefore, in terms of egg quality, the amount of eggs collected per mother fish, maturation, and histology were different depending on the degree of abdomen inflation. At stage III, where the abdomen inflation degree of the mother fish was based on the basal part of the dorsal fin relative to the height of the anal fin was 1, the egg quality was highest.

• Asian-Australasian Journal of Animal Sciences
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• 제21권11호
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• pp.1665-1672
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• 2008

Interspecies somatic cell nuclear transfer (iSCNT) is a useful method to preserve endangered species and to study the reprogramming event of a nuclear donor cell by the oocyte. Although several studies of iSCNT using murine cells and bovine oocytes have been reported, the development of murine-bovine iSCNT embryos beyond the 8-cell stage has not been successful. In this paper, we examined the developmental potential of embryos reconstructed with a murine embryonic fibroblast as the nuclear donor and a bovine oocyte as the cytoplasm recipient. The reconstructed embryos were cultured in CZB (murine medium) or CR1aa (bovine medium). In addition, for the development of a murine-bovine iSCNT blastocyst, the antioxidant ${\beta}$-mercaptoethanol (${\beta}ME$) was supplemented to CR1aa medium. Furthermore, to verify the mouse genome activation in murine-bovine iSCNT embryos, RT-PCR analysis of murine Xist was performed. The development of the murine-bovine iSCNT embryos cultured in CR1aa was significantly higher than that in CZB (p<0.05). With respect to the effect of BME on the development of the murine-bovine iSCNT blastocyst, addition of BME produced a significant increase in blastocyst development (p<0.05). Karyotype analysis confirmed that the reconstructed embryos were derived from murine cells (40XX). The Xist gene was gradually increased from the 8-cell stage to the blastocyst stage. This is the first report of blastocyst development of iSCNT embryos derived from murine somatic cells and bovine oocytes. These results demonstrate that bovine cytoplasm can support the development of later stages of a preimplantation embryo from murine-bovine iSCNT.

• Asian Pacific Journal of Cancer Prevention
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• 제17권2호
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• pp.771-774
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• 2016

Thymic tumors are the most common tumors in the anterior mediastinum. Total resection is the main treatment and predictor of longer survival. Adjuvant radiotherapy alone or in combination with chemotherapy is recommended with incomplete excision or advanced disease. Thirty seven patients with thymic tumors were included in this retrospective study from January 2001 till December 2012. They were studied regarding age, sex, performance status, tumor size and invasion, stage, pathology, treatment given, overall and progression free survival. Myasthenia gravis was present in 18.1% of the patients. Masaoka stage III was diagnosed in 40.5% of the cases followed by stage II in 24.3% and the other stages with lower percentages. Pathology type B3 was the most frequent followed by B2 and B1 with percentages of 27, 24.3 and 21.7 respectively. Complete resection was conducted in 11 cases (29.75%). Partial resection or debulking was done in 15 (40.5%) and a biopsy was taken in 11 cases (29.8%) Adjuvant chemotherapy was given to 14 patients (37.8%) and neoadjuvant to 13 (35.2%). Adjuvant radiotherapy was given to 17 patients (46%) and neoadjuvant to 14 (37.8%). The 5-year overall survival by was 83% for stage I, 71% for stage II, 60% for stage III, and 44% for stage IV (p=0.0426). Five year progression free survival was 71% for stage I, 62% stage II, 42% stage III, and 37% for stage IV (p=0.0532). In conclusion with the rare thymic tumors early stage and complete resection have the highest impact on overall and progression free survival.