• Asian Pacific Journal of Cancer Prevention
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• 제16권10호
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• pp.4219-4222
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• 2015

Background: Hydronephrosis is frequently encountered in advanced stage cervical cancers, and may be associated with mortality. In the present study, we aimed to demonstrate the effect of hydronephrosis on survival in patients with inoperable advanced stage cervical cancer. Materials and Methods: The study data were acquired by retrospective analysis of the patient records belonging to 165 women with FIGO (International Federation of Gynecology and Obstetrics) stage-IIIB or more advanced cervical cancer, which were not surgical candidates. Parameters including patient age, pathological diagnosis, disease stage, pelvic sidewall extension, presence of hydronephrosis and administration of chemoradiation were analyzed. Further, the effects of these variables on survival were assessed. P values less than 0.05 were considered statistically significant. Results: The distribution of the study patients according to disease stage was as follows: 131 (79.4%) had stage-IIIB, 18 (10.9%) had stage-IVB and 16 (% 9.7) patients had stage-IVA disease. Hydronephrosis was not evident in 91 (55.2%) of these patients, whereas 41 (24.8%) had unilateral and 33 (20%) patients had bilateral hydronephrosis. When compared to mean survival in patients who did not have hydronephrosis, survival was significantly shortened in patients who had bilateral and unilateral hydronephrosis (p<0.05). There was no significant survival difference between patients with unilateral and bilateral hydronephrosis (p>0.05). Although patient age, pathological type, pelvic involvement, and chemotherapy treatment rates were similar (p>0.05), radiotherapy requirement rate and disease stage were significantly different among the study groups (p<0.05). Conclusions: Hydronephrosis was found to be a significant predictor of poor survival in patients with advanced stage cervical cancer, irrespective of unilateral or bilateral involvement.While waiting for future studies with larger sample sizes, we believe that the FIGO stages in advanced cervical cancer could further be stratified into subgroups according to presence or absence of hydronephrosis.

• 농약과학회지
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• 제8권1호
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• pp.54-62
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• 2004

칠레이리응애와 차응애에 대하여 spirodiclofen과 fluacrypyrim+tetradifon의 독성을 비교하기 위하여 강낭콩 leaf disc에 각 응애 종의 자성충 또는 난을 접종하고 각 약제를 농도별로 살포한 결과, spirodiclofen과 fluacrypyrim+tetradifon은 차응애보다 칠레이리응애에 대하여 독성이 매우 낮았다. Spirodiclofen을 처리한 결과 칠레이리응애 자성충은 처리 농도의 증가에 따라 생존율이 감소하였으나, $22.5\sim180$ ppm 에서 92-68%가 생존하였으며, 산란수도 농도 증가에 따라 감소하였다. 모든 처리 농도에서 칠레이리응애 난의 부화에는 영향이 없었다. 유 약충의 생존율은 농도 증가에 따라 감소하였으나 $22.5\sim90$ ppm에서 88-20%가 성충으로 되었다. Fluacrypyrim+tetradifon을 처리하였을 경우, 칠레이리응애 자성충은 처리 농도가 증가할수록 생존율 이 감소하였지만, 22.5-180 ppm 에서 94-72%가 생존하였으며, 산란수도 농도 증가에 따라 감소하였다. 모든 처리 농도에서 칠레이리응애 난의 부화에는 영향이 없었다. 약충의 생존율은 농도 증가에 따라 감소하였으나, $22.5\sim180$ ppm에서$100\sim86%$가 성충태로 도달하였다. 이상의 결과에서 spirodiclofen과 fluacrypyrim+tetradifon은 차응애의 종합관리에서 칠레이리응애와 함께 이용할 수 있을 것으로 생각된다.

• Radiation Oncology Journal
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• 제24권4호
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• pp.217-222
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• 2006

목 적: T2N0 병기 성문암 환자에서 방사선치료의 결과 및 무병생존율에 영향을 미치는 예후인자를 알아보고자 하였다. 대상 및 방법: 1986년 9월부터 2004년 6월까지 본원에서 방사선치료를 받은 30예의 T2N0 병기 성문암 환자를 후향적으로 분석하였다. 대상 환자 모두 남자였으며 연령 범위는 39세에서 79세였다(중간값 62세). 조직학적 유형은 30예 모두 편평상피세포암이었다. 방사선치료는 6 MV 선형가속기를 이용하였고, 후두에 조사된 총방사선량은 $66{\sim}70\;Gy$의 범위였다(중간값 66 Gy). 추적기간의 중간값은 63개월이었다. 결 과: 대상 환자 전체의 5년 무병생존율은 79%였다. 성문하 침범이 있는 환자에서는 5년 무병생존율이 감소하는 양상을 보였다(p<0.05). 전연합 침범, 성문상 침범, 성문 운동성 감소 등은 5년 무병생존율의 감소와 무관하였다. 동시 화학요법 추가 또한 통계적 의의가 없었다. 원발병소 재발 3예 및 경부림프절 재발 2예는 근치적 수술로 구제되었으나, 원발병소 및 림프절 동시재발 2예는 근치적 수술로 구제되지 못하였다. 최종 국소제어율은 86%였고, 성대 보존율은 83%였다. 결 론: T2N0 성문암에서 근치적 방사선치료 시 성문하 침범이 무병생존율에 영향을 줄 수 있는 인자로 분석되었다.

• 원예과학기술지
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• 제28권3호
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• pp.363-369
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• 2010

조직배양구를 순화시키기 위하여 상토에 정식을 할 때 순화율을 높이고 구 비대에 적합한 재식밀도와 깊이를 구명하고자 시험을 수행되었다. 오리엔탈나리 대표 품종들인 '시베리아'와 '솔본느' 조직배양구의 효과적인 순화를 위한 재식 밀도를 200, 400, 600, 800, 1,000구/$m^2$ 단위로 하였으며, 재식깊이 시험을 위해 상토의 복토를 1, 3, 6, 9, 12cm로 나누어 정식하였다. 오리엔탈나리 '시베리아'의 경우 $m^2$ 당 400구 재식시 생존율 87.3%, 구주 6.4cm, 구중 8.3g, 구주 6cm 이상 비율 61.6%로 가장 적합하였다. '솔본느'의 경우도 400구/$m^2$에서 생존율 88.8%, 구주 5.0cm, 구중 7.1g 으로 가장 효율적인 것으로 생각되었다. 오리엔탈나리 '시베리아'와 '솔본느' 조직배양구의 순화를 위한 적정 재식깊이는 '시베리아'의 경우 지표면에서 3cm 재식구가 생존율 77.8%, 구주 5.9cm, 구중 7.9g, 구주 6cm이상 비율 47.2-51.0%로 가장 양호하였고, '솔본느'의 경우도 3cm 재식구에서 생존율 87.1%, 구주 5.1cm, 구중 6.5g로 가장 양호하였다.

• Archives of Pharmacal Research
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• 제25권4호
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• pp.493-499
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• 2002

We investigated the antitumor activity of oregonin, a diarylheptanoid derivative purified from Alnus hirsuta Turcz, Betulaceae. Oregonin is a potential novel immunomodulator, which augments the activation of natural killer (NK) cells, and thereby leads to a powerful antitumor activity. To evaluate the cytotoxicity of oregonin against tumor cells, we examined the effectiveness of NK cells and determined that oregonin could increase NK cell cytotoxicity. This was confirmed by MTT assay. In addition, the survival time of C57BL/6 mice were measured by inoculating 816-F10 melanoma cells to mice via intra muscular (i.m.) injection. Oregonin treatment after 10 hours of inoculation at 10 mg/kg dosage showed a significant extension of survival time by up to 51.32%, when compared to the control group. Moreover, oregonin significantly reduced the incidence of pulmonary metastasis, which may be developed from 816-F10 melanoma cells. These findings suggest that oregon in may be classified as a new and novel immunomodulator due to its potential antitumor activity.

• Journal of Plant Biotechnology
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• 제35권2호
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• pp.163-167
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• 2008

Adventitious buds appeared within 2 weeks on the base of the petiole explants and increased for two months. A maximum of regeneration (15.6%) was obtained on the medium containing $1.5\;{\mu}M$ TDZ in combination with $1\;{\mu}M$ IBA. To know which explants are the best for the induction of regeneration, three explants such as leaf, petiole and leaf-petiole were used. Among the explant types, the leaf-petiole explant was significantly more effective than leaf and petiole for promoting adventitious shoots, with leaf-petiole inducing at the highest regeneration frequency (33.7%). The regeneration frequency of adventitious shoots in the leaf-petiole explants was significantly affected by leaf size and the position of explants. The leaf-petiole smaller than 5 mm leaf in width was induced at the highest regeneration frequency (68.9%). The smaller leaf sizes, the greater regeneration frequency. Also when the leaves are nearer to the shoot tip, the regeneration frequency is higher. When the rooted micro-shoots were transferred to the soil after growing for 6 weeks in the media, the survival rate was 90%.

• Journal of Plant Biotechnology
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• 제44권4호
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• pp.431-437
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• 2017

Mulberry (Morus sp.) of the family Moraceae is very economically important in Asian countries including Korea, because its leaf and fruit have been commercially used in sericulture and horticultural industries. Therefore it is necessary to develop the optimal production system for rapid and cost-effective propagation of mulberry. Our studies focused on establishing an acclimatization method for the successful plantlet production of new cultivar 'Cheongsu' which was transferred ex vitro after in vitro culture. In particular, effect of abscisic acid (ABA) addition into the last subculture medium on plantlet response to subsequent ex vitro transfer and its growth was investigated. During acclimatization, stomatal conductance and transpiration rate of ABA-pretreated plantlets were significantly lower than those of non-treated plantlets. Net photosynthetic rate of ABA-pretreated plantlets decreased after ex vitro transfer but increased after 14 days, and it was mostly higher than that of non-treated plantlets. Moreover, relative water content as well as chlorophyll contents and its ratio were also higher in ABA-pretreated plantlets. On the other hand, proline was considerably higher than in control plantlets. After 1 month of ex vitro transfer, survival rate of ABA-pretreated plantlets was 85.6%, which increased by 29.1% in comparison with control (56.5%). More vigorous growth was also observed in ABA-pretreated plantlets. From these results, it was found that application of ABA to the last subculture medium could improve acclimatization and promote survival of mulberry plantlets after ex vitro transfer, inducing water stress tolerance and alleviating abiotic stresses.

• Radiation Oncology Journal
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• 제21권3호
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• pp.199-206
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• 2003

목적: 자궁경부암에서 수술 후 위험인자가 있는 환자에 방사선치료 후 생존율, 국소 제어율과 예후인자를 후향적으로 분석하여 수술 후 방사선치료의 효과를 알고자 한다. 대상 및 방법: 1986년 3월부터 1998년 12월까지 자궁경부암 FIGO 병기 IB-IIB로 자궁적출술 후 방사선치료를 받은 58명을 대상으로 국소 제어율, 5년 무병생존율과 생존율에 미치는 예후인자를 후향적으로 분석하였다. 수술 후 방사선치료의 적응증은 병리학적으로 림프절에 전이된 경우, 암이 수술절제연이나, 자궁주위조직 혹은 자궁체부에 침범하였거나, 림프혈관강에 침범된 경우, 자궁기질의 1/2 이상 깊이 침윤된 경우와 단순 자궁적출술 후 암으로 진단받은 환자로 하였다. 수술 후 방사선치료는 모든 환자에서 골반강에 외부조사를 시행하였으며 5명은 외부조사와 강내조사를 병용하였다. 외부조사는 6 MV x-선을 이용하여 매일 180 cGy를 4문으로 조사하였으며 총 방사선량은 $4400\~5040$ cGy (중앙값: 5040 cGy)이었다. 강내조사는 외부조사 후 2주에 Cs-137를 이용하여 저선량률로 질 표면에서 5 mm 깊이에 $4488\~4932$ cGy (중앙값: 4500 cGy)를 시행하였다. 추적기간은 15개월에서 108개월로 중앙값은 44개월 이었다. 결과: 전체환자의 5년 무병생존율은 $94\%$, 국소 제어율은 $98\%$,이었으며 원격 전이율은 $5\%$이었다. 병기에 따른 5년 무병생존율은 $IB\;97.1\%,\;IIA\;100\%,\;IIB\;68.9\%$(p=0.0145)이었다. 질 절제연에 암의 침범이 없는 경우 5년 무병생존율이 $97.8\%$, 있는 경우 $60\%$, (P=0.0002)이었으며, 자궁주위조직에 암이 침범이 없는 경우의 5년 무병 생존율은 $97.8\%$이었고, 있는 경우는 $33.3\%$이었다(p=0.0001). 다변량 분석에 의하면 자궁주위조직의 침범만이 통계학적으로 의의있는 예후인자이었다. 치료 후 만성합병증은 3명($5\%$,)에서 RTOG grade 2의 방광염, 1명에서 grade 2의 직장염과 1명에서 하지에 림프부종이 나타났다. 결론: 조기 자궁경부암 환자에 단순 자궁적출술을 시행하였거나, 근치적 자궁적출술 후 병리학적으로 재발 위험 인자가 있는 환자에 수술 후 방사선치료를 시행하여 심각한 부작용 없이 비교적 높은 국소 제어율과 생존율을 얻을 수 있었다. 생존율에 영향을 미치는 예후인자는 병리학적으로 암이 자궁주위조직에 침범된 것으로 예후가 불량하였다. 수술 후 방사선치료의 실패원인과 예후인자를 분석한 본 후향적 연구결과를 토대로 앞으로 방사선치료와 항암화학요법을 병용하여 보다 적극적이고 전향적인 연구를 시도하는데 이정표로 이용할 수 있다고 생각한다.

• Asian Pacific Journal of Cancer Prevention
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• 제14권11호
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• pp.6813-6820
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• 2013

The present study was conducted to investigate the prognostic significance of co-expression patterna of HER-2, IL-6, TNF-a and TGF-${\beta}1$ in breast cancer, by correlating the number of markers with positive expression with clinicopathological characteristics indicative of tumor progression and overall survival. One hundred thirty consecutive patients with primary breast cancer were prospectively included and evaluated. Serum concentrations of the above markers were measured by ELISA. Median split was used to subdivide patients with marker positive or negative expression. The presence of ${\geq}3$ positive markers was independently associated with extended lymph node (>3) involvement (aOR, 11.94, p=0.001) and lymphovascular invasion (aOR, 12.04, p=0.018), increasing the prognostic significance of each marker considered separately. Additional prognostic information regarding survival was also provided; as the number of positive markers increased, a gradually reduction of survival time was observed. In addition, patients with 4 positive markers had significantly shorter survival (25 vs 39 months, p=0.006) and a more than 4 fold increased risk of death (aHR, 4.35, p=0.003) compared to patients with 3 positive markers. Our findings suggest that the coexpression pattern of these four markers could be used clinically as a useful marker for tumor extension and outcome of breast cancer.

• Journal of Chest Surgery
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• 제52권1호
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• pp.9-15
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• 2019

Background: Although aortic valve repair can reduce prosthesis-related complications, rheumatic aortic regurgitation (AR) caused by leaflet restriction is a significant risk factor for recurrent AR. In this study, we evaluated the long-term results of the leaflet extension technique for rheumatic AR. Methods: Between 1995 and 2016, 33 patients underwent aortic valve repair using the leaflet extension technique with autologous pericardium for rheumatic pure AR. Twenty patients had severe AR and 9 had combined moderate or greater mitral regurgitation. Their mean age was $32.2{\pm}13.9$ years. The mean follow-up duration was $18.3{\pm}5.8$ years. Results: There were no cases of operative mortality, but postoperative complications occurred in 5 patients. Overall survival at 10 and 20 years was 93.5% and 87.1%, respectively. There were no thromboembolic cerebrovascular events, but 4 late deaths occurred, as well as a bleeding event in 1 patient who was taking warfarin. Twelve patients underwent aortic valve reoperation. The mean interval to reoperation was $13.1{\pm}6.1$ years. Freedom from reoperation at 10 and 20 years was 96.7% and 66.6%, respectively. Conclusion: The long-term results of the leaflet extension technique showed acceptable durability and a low incidence of thromboembolic events and bleeding. The leaflet extension technique may be a good option for young patients with rheumatic AR.