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Serum prostate-specific antigen as a predictor of prostate volume and lower urinary tract symptoms in acommunity-based cohort： a large-scale Korean screening study

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Asian Journal of Andrology 2013年第2期15卷 249-253,I0008页

作者： Dong Soo Park Jong Jin Oh Jae Yup Hong Young kwon Hong Don Kyung Choi In hyuck Gong Jin HoHwang Sung Won kwon Department of Urology CHA Bundang Medical Center CHA University Seongnam 463-712 Korea CHA Cancer Research Center Seou1135-081 Korea Department of Urology CHA Gangnam Medical Center CHA University Seou1135-081 Korea Korea Prostate Health Council Seou1137-070 Korea

The aim of this study is to assess the ability of serum prostate-specific antigen （PSA） to predict prostate volume （PV） and lower urinary tract symptoms （LUTS） represented by the international prostate symptom score （IPSS）. From January 2001 to December 2011, data were collected from men who first enrolled in the Korean Prostate Health Council Screening Program. Patients with a serum PSA level of 10 ng ml^-1 or age 〈40 years were excluded. Accordingly, a total of 34 857 men were included in our study, and serum PSA, PV and the IPSS were estimated in all patients. Linear and age-adjusted multivariate logistic analyses were used to assess the potential association between PSA and PV or IPSS. The predictive value of PSA for estimating PV and IPSS was assessed based on the receiver operating characteristics-derived area under the curve （AUC）. The mean PV was 29.9 ml, mean PSA level was 1.49 ng ml^-1 and mean IPSS was 15.4. A significant relationship was shown between PSA and PV, and the IPSS and PSA were also significantly correlated after adjusting by age. The AUCs of PSA for predicting PV ~20 ml, 〉25 ml and 〉35 ml were 0.722, 0.728 and 0.779, respectively. The AUCs of PSA for predicting IPSS 〉 7, 〉 13 and 〉 19 were 0. 548, 0.536 and 0. 537, respectively. Serum PSA was a strong predictor of PV in a community-based cohort in a large-scale screening study. Although PSA was also significantly correlated with IPSS, predictive values of PSA for IPSS above the cutoff levels were not excellent. Further investigations are required to elucidate the exact interactions between PSA and LUTS and between PSA and PV in prospective controlled studies. Such studies may suggest how PSA can be used to clinically predict PV and the IPSS.

关键词： lower urinary tract symptoms (LUTS) prostate prostate-specific antigen (PSA) prostate volume (PV)

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A compact polymer–inorganic hybrid gas barrier nanolayer for flexible organic light-emitting diode displays

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npj Flexible Electronics 2022年第1期6卷 204-209页

作者： Seung Hun Kim Seung Yong Song Soo Youn Kim Moon Won Chang Hyo Jeong kwon Kwan hyuck Yoon Woo Yong Sung Myung Mo Sung Hye Yong Chu Display Research Center Samsung DisplayYongin-siGyeonggi-do 17113Republic of Korea Department of Chemistry Hanyang UniversitySeoul 04763Republic of Korea

Atomic layer infiltration technology allows the formation of a nanometer-thick polymer-inorganic hybrid barrier layer in polymer material for flexible organic light-emitting diode(OLED)*** this study,according to transmission electron microscopy and secondary-ion mass spectrometry analysis results under various process conditions,a compact polymer-inorganic hybrid nanolayer was successfully formed in a polymer and good barrier performance was revealed with a low water vapor transmission rate under optimal process ***,through gas chromatography-mass spectrometry measurements after ultra-violet radiation testing,polymer out-gassing decreased compared to bare *** on barrier properties,the polymer with a polymer-inorganic hybrid barrier nanolayer was applied to a flexible OLED display as a *** storage tests and folding tests,the flexible OLED display exhibits good reliability and better flexibility compared to those with an inorganic barrier *** results confirm that the polymer-inorganic hybrid nanolayer is suitable for barrier layer formation in flexible OLED displays.

关键词： diode barrier layer

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Role of adjuvant chemoradiotherapy and chemotherapy in patients with resected gallbladder carcinoma: a multiinstitutional analysis (KROG 19-04)

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Cancer Biology & Medicine 2022年第6期19卷 931-944页

作者： Sung Uk Lee Jinsil Seong Tae Hyun Kim Jung Ho Im Woo Chul Kim Kyubo Kim Hae Jin Park Tae Gyu Kim Youngkyong Kim Bae kwon Jeong Jin Hee Kim Byoung hyuck Kim Taek-Keun Nam Center for Proton Therapy and Center for Liver and Pancreatobiliary Cancer National Cancer CenterGoyang 10408Korea Department of Radiation Oncology Yonsei Cancer CenterYonsei University College of MedicineSeoul 03722Korea Department of Radiation Oncology CHA Bundang Medical CenterCHA University School of MedicineSeongnam 13497Korea Department of Radiation Oncology Inha University HospitalInha University School of MedicineIncheon 22332Korea Department of Radiation Oncology Ewha Womans University Mokdong HospitalEwha Womans University College of MedicineSeoul 07985Korea Department of Radiation Oncology Hanyang University Medical CenterHanyang University College of MedicineSeoul 04763Korea Department of Radiation Oncology Samsung Changwon HospitalSungkyunkwan University School of MedicineChangwon 51353Korea Department of Radiation Oncology Kyung Hee University HospitalKyung Hee University College of MedicineSeoul 02447Korea Department of Radiation Oncology Gyeongsang National University HospitalGyeongsang National University College of MedicineJinju 52727Korea Department of Radiation Oncology Dongsan Medical CenterKeimyung University School of MedicineDaegu 41931Korea Department of Radiation Oncology Seoul Metropolitan Government Seoul National University Boramae Medical CenterSeoul 07061Korea Department of Radiation Oncology Chonnam National University Hwasun HospitalChonnam National University College of MedicineHwasun 58128Korea

Objective:The effectiveness of adjuvant treatments for resected gallbladder carcinoma(GBC)has remained unclear due to lack of randomized controlled trials;thus,the aim of present study was to evaluate the role of adjuvant treatments,including chemoradiotherapy(CRT)and/or chemotherapy(CTx),in patients with resected ***:A total of 733 GBC patients who received curative-intent surgical resection were identified in a multi-institutional *** 733 patients,372(50.8%)did not receive adjuvant treatment,whereas 215(29.3%)and 146(19.9%)received adjuvant CTx and CRT,*** locoregional recurrence-free survival(LRFS),recurrence-free survival(RFS),and overall survival(OS)of the adjuvant treatment groups were compared according to tumor stage(stage II *** III–IV).Results:In stage II disease(n=381),the 5-year LRFS,RFS,and OS were not significantly different among the no-adjuvant therapy,CTx,and CRT groups,and positive resection margin,presence of perineural invasion,and Nx classification were consistently associated with worse LRFS,RFS,and OS in the multivariate analysis(P<0.05).For stage III–IV(n=352),the CRT group had significantly higher 5-year LRFS,RFS,and OS than the no-adjuvant therapy and CTx groups(67.8%,45.2%,and 56.9%;37.9%,28.8%,and 35.4%;and 45.0%,30.0%,and 45.7%,respectively)(P<0.05).Conclusions:CRT has value as adjuvant treatment for resected GBC with stage III–IV *** study is needed for stage II disease with high-risk features.

关键词： Gallbladder cancer adjuvant treatment chemoradiotherapy locoregional recurrence-free survival overall survival

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Severe thrombocytopenia before liver transplantation is associated with delayed recovery of thrombocytopenia regardless of donor type

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World Journal of Gastroenterology 2008年第37期14卷 5723-5729页

作者： Jae hyuck Chang Jong Young Choi Hyun Young Woo Jung Hyun kwon Chan Ran You Si Hyun Bae Seung Kew Yoon Myung-Gyu Choi In-Sik Chung Dong Goo Kim Department of Internal Medicine College of Medicine the Catholic University of Korea505 Banpo-Dong Seocho-Gu Seoul 137-040 Korea Department of Surgery College of Medicine the Catholic University of Korea505 Banpo-Dong Seocho-Gu Seoul 137-040 Korea

AIM： To compare the recovery of thrombocytopenia and splenomegaly during long-term follow-up after liver transplantation in patients receiving a living donor transplant or a cadaveric donor transplant. METHODS： This was a retrospective cohort study of 216 consecutive liver transplant patients who survived for 〉 6 mo after transplantation; 169 received a liver transplant from a living donor and 47 from a cadaveric donor. The platelet counts or spleen volumes were examined before transplant, i, 6, and 12 mo after transplant, and then annually until 5 years after transplant. RESULTS： The mean follow-up period was 49 mo （range, 21-66）. Platelet counts increased continuously for 5 years after orthotopic liver transplant. The restoration of platelet counts after transplant was significantly slower in patients with severe pretransplant thrombocytopenia （〈 50000/μL） until 4 years after transplant （P = 0.005）. Donor type did not significantlyaffect the recovery of platelet count and spleen volume in either patient group. In multivariate analysis, pretransplant severe thrombocytopenia （〈 50000/μL） was an independent factor associated with sustained thrombocytopenia （P 〈 0.001, odds ratio 6.314; confidence interval, 2.828-14.095）. Thrombocytopenia reappeared after transplant in seven patients with portal flow disturbance near the anastomosis site. CONCLUSION： Our study suggests that severe thrombocytopenia before transplant is closely associated with delayed recovery of platelet count after transplant and donor type did not affect the recovery of thrombocytopenia. The reappearance of thrombocytopenia after transplant should be considered a possible indicator of flow disturbance in the portal vein.

关键词： Liver transplantation Thrombocytopenia Splenomegaly Hypersplenism

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