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Yoon JS, Hong JH, Park SY, Kim SU, Kim HY, Kim JY, Hur MH, Park MK, Lee YB, Lee HA, Kim GA, Sinn DH, Park SJ, Lee YJ, Kim YJ, Yoon JH, Lee JH. High-dose proton pump inhibitor treatment is associated with a higher mortality in cirrhotic patients: A multicentre study. Aliment Pharmacol Ther 2024; 59:973-983. [PMID: 38389319 DOI: 10.1111/apt.17909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 08/11/2023] [Accepted: 02/07/2024] [Indexed: 02/24/2024]
Abstract
BACKGROUND Proton pump inhibitors (PPI) are frequently used in patients with cirrhosis. AIMS This study aimed to determine whether PPI use is associated with the prognosis of cirrhotic patients. METHODS We conducted a multicentre retrospective cohort study involving 1485 patients who had experienced hepatic encephalopathy (HE) from 7 referral centres in Korea. The primary outcome was overall survival and secondary outcomes included the development of cirrhotic complications, including recurrent HE, spontaneous bacterial peritonitis (SBP), hepatorenal syndrome (HRS), and gastrointestinal bleeding. Patients treated with PPI with a mean defined daily dose (mDDD) ≥0.5 (high-dose PPI group) were compared to those treated with PPI of an mDDD < 0.5 (No or low-dose PPI group) for each outcome. RESULTS Among 1485 patients (median age, 61 years; male, 61%), 232 were assigned to the high-dose PPI group. High-dose PPI use was independently associated with a higher risk of death (adjusted HR [aHR] = 1.71, 95% confidence interval [CI] = 1.38-2.11, p < 0.001). This result was reproducible after propensity score-matching (PSM) (aHR = 1.90, 95% CI = 1.49-2.44, p < 0.001). High-dose PPI use was an independent risk factor of recurrent HE (before PSM: aHR = 2.04, 95% CI = 1.66-2.51, p < 0.001; after PSM: aHR = 2.16, 95% CI = 1.70-2.74, p < 0.001), SBP (before PSM: aHR = 1.87, 95% CI = 1.43-2.43, p < 0.001; after PSM: aHR = 1.76, 95% CI = 1.31-2.36, p = 0.002), HRS (before PSM: aHR = 1.48, 95% CI = 1.02-2.15, p = 0.04; after PSM: aHR = 1.47, 95% CI = 0.95-2.28, p = 0.09), and gastrointestinal bleeding (before PSM: aHR = 1.46, 95% CI = 1.12-1.90, p = 0.006; after PSM: aHR = 1.74, 95% CI = 1.28-2.37, p < 0.001). CONCLUSIONS The use of high-dose PPI was independently associated with increased risks of mortality and cirrhotic complications.
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Affiliation(s)
- Jun Sik Yoon
- Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
| | - Ji Hoon Hong
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Soo Young Park
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Seung Up Kim
- Department of Internal Medicine and Yonsei Liver Center, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hwi Young Kim
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Republic of Korea
| | - Ju Yeon Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Moon Haeng Hur
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Min Kyung Park
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yun Bin Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Han Ah Lee
- Department of Internal Medicine, College of Medicine, Ewha Womans University, Seoul, Republic of Korea
| | - Gi-Ae Kim
- Department of Internal Medicine, Kyung Hee University School of Medicine, Seoul, Republic of Korea
| | - Dong Hyun Sinn
- Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Sung Jae Park
- Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
| | - Youn Jae Lee
- Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jeong-Hoon Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
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Hong JH, Park JH, Shim JW. Comparison of Craniocaudal Spread of Lumbar Erector Spinae Plane Block With Two Volumes of Local Anesthetics. Pain Physician 2023; 26:265-272. [PMID: 37192229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
BACKGROUND The erector spinae plane block (ESPB) is a less invasive, safer, and technically easier procedure compared to the conventional neuraxial technique. Although the ESPB is a favored and easy technique compared to neuraxial block, there is no study with a large number of patients describing the exact spread level of injected local anesthetics. OBJECTIVES The purpose of this study was to identify ESPB spread in the craniocaudal direction and the incidence of spread into the epidural space, psoas muscle, and intravascular system. STUDY DESIGN Prospective design. SETTING A tertiary university hospital, pain clinic. METHODS Right- or left-sided ESPBs (170 at L4) with fluoroscopy subsequent to ultrasound guidance due to acute or subacute low back pain were included. In this study, 10 mL (ESPB 10 mL group, contrast medium 5 mL) or 20 mL (ESPB 20 mL group, contrast medium 7 mL) of a local anesthetic mixture was injected. After confirming a successful interfascial plane spreading under ultrasound guidance, the remaining local anesthetic was injected under fluoroscopic guidance. The spread level of ESPB in the craniocaudal direction and the occurrence of injectate into the epidural space or psoas muscle was assessed using the saved fluoroscopic images. These images were compared between the ESPB 10 mL and ESPB 20 mL groups. Also, the presence or absence of intravascular injection during ESPB was assessed and compared between the ESPB 10 mL and ESPB 20 mL groups. RESULTS The ESPB 20 mL group had a more extensive caudal distribution of contrast medium than the ESPB 10 mL group. Also, the total number of lumbar vertebral segments was significantly higher in the ESPB 20 mL group than that of the ESPB 10 mL group (1.7 ± 0.4 vs 2.1 ± 0.4, P < 0.001). Among all injections performed in this study, epidural, psoas muscle, and intravascular injections occurred in 2.9%, 5.9%, and 12.9%, respectively. LIMITATIONS Only the craniocaudal direction was evaluated without evaluating the spread pattern in the medial to lateral direction. CONCLUSION The ESPB 20 mL group showed a more extensive distribution of contrast medium than that of the ESPB 10 mL group. Inadvertent injections into the epidural space, psoas muscle, and intravascular system were observed. Among them, intravascular system injections were found to be the most common (12.9%).
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Affiliation(s)
- Ji Hoon Hong
- Department of Anesthesiology and Pain Medicine, Keimyung University Dongsan, Daegu, Korea
| | - Ji Hoon Park
- Keimyung University DongSan Hospital Department of Anesthesiology and Pain Medicine, Dalseo-gu, Daegu, Korea
| | - Jin Woo Shim
- Department of Anesthesiology and Pain Medicine, Keimyung University DongSan Hospital, Daegu, Korea
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Chung SW, Cho H, Shin H, Park J, Kim JY, Hong JH, Hur MH, Park MK, Lee YB, Yu SJ, Lee M, Kim YJ, Paeng JC, Yoon JH, Chung JW, Lee JH, Kim HC. Transarterial chemoembolization as an alternative to radioembolization is associated with earlier tumor recurrence than in radioembolization-eligible patients. Front Oncol 2023; 13:1081479. [PMID: 36925930 PMCID: PMC10013818 DOI: 10.3389/fonc.2023.1081479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Accepted: 02/02/2023] [Indexed: 03/08/2023] Open
Abstract
Introduction Although transarterial radioembolization (TARE) using yttrium-90 (90Y) is a treatment option for large hepatocellular carcinoma (HCC), a fraction of patients are ineligible for TARE due to high lung shunt fraction (LSF). Methods We evaluated if treatment with transarterial chemoembolization (TACE), owing to TARE ineligibility was associated with early HCC progression. Consecutive patients with HCC who were initially TARE candidates were included. Patients with vascular invasion or metastasis were excluded. Primary endpoints were time-to-progression (TTP) and overall survival (OS). The secondary endpoint was objective response rate. Results In total, 175 patients were included: 144 underwent TARE (TARE-eligible group) and 31 underwent TACE due to high LSF (TARE-ineligible group). This latter group had larger tumors (13.8 cm vs. 7.8 cm, P<0.001) and higher MoRAL scores (1,385.8 vs. 413.3, P=0.002) than the TARE-eligible group. After balancing baseline characteristics with an inverse probability of treatment weighting (IPTW), the TARE-ineligible group showed shorter TTP [adjusted hazard ratio (aHR)=2.16, 95% confidence interval (CI)=1.14-4.07, P=0.02] and OS (aHR=1.80, 95% CI=0.85-3.80, P=0.12), although the latter was not statistically significant. The TARE-ineligible group had a significantly lower objective response rate than the TARE-eligible group (9.7% vs. 56.9%, P<0.001). Conclusion TARE-ineligible patients had larger tumors and higher MoRAL scores than TARE-eligible patients. Treatment with TACE, owing to high LSF, was associated with a shorter TTP even after balancing tumor size and MoRAL scores.
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Affiliation(s)
- Sung Won Chung
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Heejin Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hyunjae Shin
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jeayeon Park
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ju Yeon Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ji Hoon Hong
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Moon Haeng Hur
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Min Kyung Park
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yun Bin Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Su Jong Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Myungsu Lee
- Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jin Chul Paeng
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jin Wook Chung
- Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jeong-Hoon Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Hyo-Cheol Kim
- Department of Radiology, Seoul National University College of Medicine, Seoul, Republic of Korea
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Chung GE, Kim JY, Shin H, Hong JH, Hur MH, Cho H, Park MK, Choi NR, Kim J, Lee YB, Cho EJ, Yu SJ, Kim YJ, Yoon JH, Lee JH. Correlation between Results of Semi-Quantitative and Quantitative Tests for Hepatitis B Virus Surface Antigen among Patients Achieving Viral Suppression with Antiviral Treatment. Diagnostics (Basel) 2022; 12:diagnostics12071757. [PMID: 35885659 PMCID: PMC9317496 DOI: 10.3390/diagnostics12071757] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/13/2022] [Accepted: 07/19/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Hepatitis B virus (HBV) infection remains a threat to global public health. Serum hepatitis B surface antigen (HBsAg) has been used in screening for HBV infection. Quantitative HBsAg assays are useful for monitoring the natural history of HBV infection and its response to therapy. The aim of this study was to determine the relationship between quantitative (qHBsAg; IU/mL) and semi-quantitative (sqHBsAg; signal-to-cutoff ratio [S/Co]) HBsAg titers in patients with chronic hepatitis B (CHB). Methods: We retrospectively included 284 samples with HBV DNA < 20 IU/mL from patients who had simultaneous qHBsAg (using electrochemiluminescence assay) and sqHBsAg tests. Patients were grouped according to their serum HBV-envelope antigen (HBeAg) status (HBeAg-negative, n = 239 and HBeAg-positive, n = 45). The Spearman test was used to analyze the correlation between the quantitative and semi-quantitative assays. Results: There was a significant linear correlation between sqHBsAg and qHBsAg in the HBeAg-negative patients (qHBsAg [IU/mL] = 0.0094 × sqHBsAg [S/Co]1.323; adjusted R2 = 0.8445; p < 0.001). There was a substantial hook effect in the assays from the HBeAg-positive patients, so we performed a stratified analysis according to qHBsAg <1000 IU/mL or ≥1000 IU/mL and found a significant positive linear correlation between sqHBsAg S/Co and qHBsAg (qHBsAg [IU/mL] = 0.072 × sqHBsAg [S/Co]1.331; adjusted R2 = 0.7878; p < 0.001) in HBeAg-positive patients with qHBsAg titers of <1000 IU/mL and a significant negative correlation in HBeAg-positive patients with qHBsAg titers of ≥1000 IU/mL (qHBsAg [IU/mL] = 8.987 × 1014 × sqHBsAg [S/Co]−3.175; adjusted R2 = 0.6350; p < 0.001). Conclusions: There was a highly linear, positive correlation between qHBsAg and sqHBsAg in HBeAg-negative CHB patients. The hook effect led to a negative correlation in HBeAg-positive CHB patients with qHBsAg titers ≥1000 IU/mL.
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Affiliation(s)
- Goh Eun Chung
- Department of Internal Medicine, Healthcare Research Institute, Gangnam Healthcare Center, Seoul National University Hospital, Seoul 03080, Korea;
| | - Ju Yeon Kim
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Hyunjae Shin
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Ji Hoon Hong
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Moon Haeng Hur
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Heejin Cho
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Min Kyung Park
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Na Ryung Choi
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Jihye Kim
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Yun Bin Lee
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Eun Ju Cho
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Su Jong Yu
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Yoon Jun Kim
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Jung-Hwan Yoon
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Jeong-Hoon Lee
- Department of Internal Medicine, Liver Research Institute, Seoul National University College of Medicine, Seoul 03080, Korea; (J.Y.K.); (H.S.); (J.H.H.); (M.H.H.); (H.C.); (M.K.P.); (N.R.C.); (J.K.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
- Correspondence: ; Tel.: +82-2-2072-2228
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Choi NR, Kim JY, Hong JH, Hur MH, Cho H, Park MK, Kim J, Lee YB, Cho EJ, Lee JH, Yu SJ, Yoon JH, Kim YJ. Comparison of the outcomes between sorafenib and lenvatinib as the first-line systemic treatment for HBV-associated hepatocellular carcinoma: a propensity score matching analysis. BMC Gastroenterol 2022; 22:135. [PMID: 35337274 PMCID: PMC8951695 DOI: 10.1186/s12876-022-02210-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Accepted: 03/11/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND/AIM In a randomized controlled trial, lenvatinib was non-inferior to sorafenib in overall survival (OS) of patients with unresectable hepatocellular carcinoma (uHCC). This study aimed to compare the effects of sorafenib and lenvatinib as first-line systemic therapy against uHCC with real-world data in chronic hepatitis B patients. METHODS This retrospective single-center study involved 132 patients with HBV-related uHCC. Propensity score matching (PSM) was used to balance the baseline characteristics, including age, sex, serum alpha-fetoprotein levels, Child-Pugh class, tumor size, and tumor stage. The primary endpoint was overall survival (OS), and the secondary endpoints included progression-free survival (PFS), time to progression (TTP), and tumor response. RESULTS After PSM, the final analysis included 44 patients treated with lenvatinib and 88 with sorafenib. The OS (7.0 vs 9.2 months, p = 0.070) and PFS (4.6 vs 2.4 months, p = 0.134) were comparable between the two drugs. Multivariable analysis showed that lenvatinib and sorafenib were not independent prognostic factors of OS (adjusted hazard ratio = 1.41, 95% confidence interval = 0.96-2.08, p = 0.077) after adjustment for baseline alpha-fetoprotein levels, total bilirubin levels, alanine aminotransferase level, performance status, tumor stage, and tumor size. However, the lenvatinib group had a significantly prolonged TTP (5.2 vs 2.5 months, p = 0.018) and a higher objective response rate (18.2% vs 4.5%, p = 0.020) and disease control rate (77.3% vs 47.7%, p = 0.001) than the sorafenib group. CONCLUSIONS Our study demonstrated that lenvatinib had a comparable OS and PFS but longer TTP and better tumor response compared to sorafenib in patients with HBV-related uHCC.
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Affiliation(s)
- Na Ryung Choi
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Ju Yeon Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Ji Hoon Hong
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Moon Haeng Hur
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Heejin Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Min Kyung Park
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Jihye Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Yun Bin Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Eun Ju Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Jeong-Hoon Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Su Jong Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, South Korea. .,Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.
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Kim J, Kim JY, Lee JH, Sinn DH, Hur MH, Hong JH, Park MK, Cho HJ, Choi NR, Lee YB, Cho EJ, Yu SJ, Kim YJ, Paeng JC, Kim HC, Yi NJ, Lee KW, Suh KS, Hyun D, Kim JM, Yoon JH. Long-Term Outcomes of Transarterial Radioembolization for Large Single Hepatocellular Carcinoma: A Comparison to Resection. J Nucl Med 2021; 63:1215-1222. [PMID: 34887340 DOI: 10.2967/jnumed.121.263147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2021] [Accepted: 12/06/2021] [Indexed: 11/16/2022] Open
Abstract
The surgical treatment for large hepatocellular carcinoma (HCC) remains controversial due to a high risk of recurrence after resection. This study aimed to compare long-term outcomes of transarterial radioembolization (TARE) with resection for patients with large HCC. Methods: This retrospective cohort study included a total of 557 patients who were initially treated with either resection (the resection group, n = 500) or TARE (the TARE group, n = 57) for large (≥5 cm) single nodular HCC at two tertiary centers in Korea. Patients with major portal vein tumor thrombosis or extrahepatic metastasis were excluded. The primary endpoint was overall survival (OS), and secondary endpoints were time to progression (TTP), time to intrahepatic progression (TTIP), and safety. Results: The resection group were younger (median, 60 years vs. 69 years) with smaller tumor size (median, 7.0 cm vs. 10.0 cm) (all P<0.05). After baseline characteristics were balanced using inverse probability of treatment weighting (IPTW), the TARE group showed comparable OS (hazard ratio [HR], 0.98; 95% confidence interval [CI], 0.40-2.43; P = 0.97), TTP (HR, 1.10; 95% CI, 0.55-2.20; P = 0.80), and TTIP (HR, 1.45; 95% CI, 0.72-2.93; P = 0.30) to the resection group. TARE was not an independent risk for OS (adjusted-HR, 1.04; 95% CI, 0.42-2.59; P = 0.93), TTP (adjusted-HR, 0.98; 95% CI, 0.50-1.95; P = 0.96), or TTIP (adjusted-HR, 1.30; 95% CI, 0.65-2.58; P = 0.46). The TARE group showed shorter hospital stay and fewer adverse events than the resection group. Conclusion: TARE showed comparable OS, TTP, and TTIP with better safety profile compared to surgical resection for large single nodular HCC.
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Affiliation(s)
- Jihye Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Ju Yeon Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Jeong-Hoon Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Dong Hyun Sinn
- Department of Internal Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea, Korea, Republic of
| | - Moon Haeng Hur
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Ji Hoon Hong
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Min Kyung Park
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Hee Jin Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Na Ryung Choi
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Yun Bin Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Eun Ju Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Su Jong Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Jin Chul Paeng
- Department of Nuclear Medicine, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Hyo Cheol Kim
- Department of Radiology, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Nam-Joon Yi
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Kwang-Woong Lee
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Kyung-Suk Suh
- Department of Surgery, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
| | - Dongho Hyun
- Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea, Korea, Republic of
| | - Jong Man Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea, Korea, Republic of
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea, Korea, Republic of
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Hur MH, Lee JH, Kim JY, Hong JH, Park MK, Cho HJ, Choi NR, Kim J, Kim MA, Nam JY, Lee YB, Cho EJ, Yu SJ, Kim YJ, Lee DH, Lee JM, Hong SK, Yi NJ, Lee KW, Suh KS, Yoon JH. Comparison of Overall Survival between Surgical Resection and Radiofrequency Ablation for Hepatitis B-Related Hepatocellular Carcinoma. Cancers (Basel) 2021; 13:cancers13236009. [PMID: 34885118 PMCID: PMC8657180 DOI: 10.3390/cancers13236009] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 11/25/2021] [Accepted: 11/27/2021] [Indexed: 12/12/2022] Open
Abstract
Simple Summary The effectiveness of surgical resection and radiofrequency ablation in early hepatocellular carcinoma is still controversial because previous studies show conflicting results. In addition, previous studies did not consider the antiviral treatment-related factors, even though there is now robust evidence that antiviral therapy is crucial for determining the prognosis of patients with chronic hepatitis B-related liver cancer. After adjusting for the antiviral treatment, we demonstrated that radiofrequency ablation may provide comparable overall survival to resection in the treatment of very early or early hepatocellular carcinoma, although recurrence-free survival is marginally shorter than in the resection group. Abstract It remains controversial whether surgical resection, compared to radiofrequency ablation (RFA), improves overall survival (OS) in patients with early hepatocellular carcinoma (HCC). This study aimed to compare OS after RFA with that after resection for HCC. This retrospective study included patients who underwent RFA or surgical resection as initial treatment for hepatitis B virus (HBV)-related HCC at a very early or early stage. A total of 761 patients (RFA, n = 194; resection, n = 567) from Seoul National University Hospital (Seoul, South Korea) and 1277 patients (RFA, n = 352; resection, n = 925) from the Korean Primary Liver Cancer Registry were included in the hospital and nationwide cohorts, respectively. Primary and secondary endpoints were OS and recurrence-free survival (RFS), respectively. Additional analysis was performed when the history of the antiviral treatment and the type of prescribed nucleos(t)ide analogue were confirmed. The rate of complications was compared between the two treatment groups in the hospital cohort. Baseline characteristics were balanced, using inverse probability of treatment weighting (IPTW). In the hospital cohort, the RFA group had a smaller mean tumor size (1.7 vs. 3.9 cm) but a higher proportion of cirrhotic patients than the resection group (85.6% vs. 63.1%) (both p < 0.01). During 81.0 (interquartile range, 62.3–107.1) months of follow-up, there was no difference in OS (adjusted hazard ratio (aHR) = 0.870, 95% confidence interval (CI) = 0.400–1.897, p = 0.73) and RFA was associated with shorter RFS (aHR = 1.562, 95% CI = 1.099–2.219, p = 0.01) after employing IPTW. Antiviral treatment was independently associated with longer OS (aHR = 0.444, 95% CI = 0.251–0.786, p = 0.01) as well as RFS (aHR = 0.544, 95% CI = 0.391–0.757, p < 0.01) in the hospital cohort. In the nationwide cohort, there was no difference in OS (aHR = 0.981, 95% CI = 0.661–1.456, p = 0.92) between the two treatment groups when adjusted for antiviral treatment, which was a negative independent risk factor for mortality (aHR = 0.655, 95% CI = 0.451–0.952, p = 0.03) after IPTW. Among patients treated with tenofovir (n = 96) or entecavir (n = 184) in the hospital cohort, there was no difference in either OS (aHR = 0.522, 95% CI = 0.058–4.724, p = 0.56) or RFS (aHR = 1.116, 95% CI = 0.738–1.688, p = 0.60). The overall incidence of complications was higher in the resection group (26.3%) than in the RFA group (13.9%) (p < 0.01). RFA may provide comparable OS to resection in the treatment of very early or early HCC with a lower rate of complications, although RFS is marginally shorter than in the resection group after adjusting for antiviral treatment. Regardless of the type of NA, antiviral treatment in patients with HBV-related HCC is strongly associated with both OS and RFS.
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Affiliation(s)
- Moon Haeng Hur
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Jeong-Hoon Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
- Correspondence:
| | - Ju Yeon Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Ji Hoon Hong
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Min Kyung Park
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Hee Jin Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Na Ryung Choi
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Jihye Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Minseok Albert Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Joon Yeul Nam
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Yun Bin Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Eun Ju Cho
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Su Jong Yu
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Yoon Jun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
| | - Dong Ho Lee
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (D.H.L.); (J.M.L.)
| | - Jeong Min Lee
- Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (D.H.L.); (J.M.L.)
| | - Suk Kyun Hong
- Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (S.K.H.); (N.-J.Y.); (K.-W.L.); (K.-S.S.)
| | - Nam-Joon Yi
- Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (S.K.H.); (N.-J.Y.); (K.-W.L.); (K.-S.S.)
| | - Kwang-Woong Lee
- Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (S.K.H.); (N.-J.Y.); (K.-W.L.); (K.-S.S.)
| | - Kyung-Suk Suh
- Department of Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (S.K.H.); (N.-J.Y.); (K.-W.L.); (K.-S.S.)
| | - Jung-Hwan Yoon
- Department of Internal Medicine and Liver Research Institute, Seoul National University Hospital, Seoul National University College of Medicine, Seoul 03080, Korea; (M.H.H.); (J.Y.K.); (J.H.H.); (M.K.P.); (H.J.C.); (N.R.C.); (J.K.); (M.A.K.); (J.Y.N.); (Y.B.L.); (E.J.C.); (S.J.Y.); (Y.J.K.); (J.-H.Y.)
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Sung P, Yoon SH, Kim J, Hong JH, Park S, Goo JM. Bronchovascular bundle thickening on CT as a predictor of survival and brain metastasis in patients with stage IA peripheral small cell lung cancer. Clin Radiol 2020; 76:76.e37-76.e46. [PMID: 32948314 DOI: 10.1016/j.crad.2020.08.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Accepted: 08/19/2020] [Indexed: 01/03/2023]
Abstract
AIM To determine if bronchovascular bundle (BVB) thickening on pretreatment computed tomography (CT) images helps predict survival in patients with peripheral small cell lung cancer (pSCLC) ≤3 cm. MATERIALS AND METHODS The pretreatment CT examinations of 79 histopathologically proven pSCLC ≤3 cm (TNM stage I, 21; II, 13; III, 22; IV, 23) were reviewed retrospectively. The CT characteristics of the nodule and associated findings, including BVB thickening, were evaluated. Progression-free survival (PFS), overall survival (OS), and brain metastasis-free survival were compared with the presence of BVB thickening using Kaplan-Meier and Cox regression analysis. RESULTS Among the 79 patients, 34 (43%) had BVB thickening. BVB thickening was prevalent in patients with mediastinal lymph node metastasis (50.9% versus 22.7%; p=0.024) and distant metastasis (60.9% versus 35.7%; p=0.049). Out of the 21 patients with TNM stage IA disease, the 16 patients (76.2%) without BVB thickening showed better PFS, OS, and brain metastasis-free survival (mean, 1,762 versus 483 days; p=0.019: 2,243 versus 1,328 days; p=0.038: 2,274 versus 1,287 days; p=0.038, respectively). Multivariate Cox regression analysis showed that the absence of BVB thickening (hazard ratio [HR], 7.806; 95% CI, 1.241-49.091; p=0.029) and surgery (HR, 0.075; 95% CI, 0.008-0.746; p=0.027) were independent and useful prognostic factors for PFS. CONCLUSIONS BVB thickening was found more frequently in patients with advanced-stage pSCLC ≤3 cm, and the PFS was more favourable in patients without BVB thickening, with a similar tendency to that of OS and brain metastasis-free survival, in stage IA pSCLC.
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Affiliation(s)
- P Sung
- Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - S H Yoon
- Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea; Department of Radiology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 030804, South Korea.
| | - J Kim
- Department of Radiology, Seoul National University Bundang Hospital, Seoul National University College of Medicine, 300 Gumi-dong, Bundang-gu, Seongnam, Gyeonggi-do, 13620, South Korea
| | - J H Hong
- Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
| | - S Park
- Department of Thoracic and Cardiovascular Surgery, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, South Korea
| | - J M Goo
- Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea; Department of Radiology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul, 030804, South Korea; Institute of Radiation Medicine, Seoul National University Medical Research Center, 103 Daehak-ro, Jongno-gu, Seoul, 03080, South Korea
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Kim ST, Kang JH, Lee J, Lee HW, Oh SY, Jang JS, Lee MA, Sohn BS, Yoon SY, Choi HJ, Hong JH, Kim MJ, Kim S, Park YS, Park JO, Lim HY. Capecitabine plus oxaliplatin versus gemcitabine plus oxaliplatin as first-line therapy for advanced biliary tract cancers: a multicenter, open-label, randomized, phase III, noninferiority trial. Ann Oncol 2019; 30:788-795. [PMID: 30785198 DOI: 10.1093/annonc/mdz058] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Capecitabine plus oxaliplatin (XELOX) has shown modest activity and tolerable toxicity in a phase II trial for biliary tract cancers (BTCs). Meanwhile, gemcitabine plus oxaliplatin (GEMOX) has been the reference arm in recent phase II and III trials for BTCs. We aimed to investigate the efficacy of XELOX versus GEMOX as first-line therapy for advanced BCTs. PATIENTS AND METHODS In this open-label, randomized, phase III, noninferiority trial, we randomly selected patients with metastatic BCTs to receive GEMOX (gemcitabine 1000 mg/m2 on days 1 and 8, and oxaliplatin 100 mg/m2 on day 1) or XELOX (capecitabine 1000 mg/m2, twice daily, on days 1-14 and oxaliplatin 130 mg/m2 on day 1) as first-line treatment, given every 3 weeks, totaling eight cycles. The primary end point was to prove the noninferiority of XELOX to GEMOX in terms of 6-month progression-free survival (PFS) rate. RESULTS In total, 114 patients randomly received GEMOX and 108 randomly received XELOX. The median PFS was 5.3 months for the GEMOX group and 5.8 months for the XELOX group. The 6-month PFS rate was 44.5% for the GEMOX group and 46.7% for the XELOX group. The 95% confidence interval of the 6-month PFS rate difference between both groups was -12% to 16%, meeting the criteria for noninferiority of XELOX to GEMOX. There was no difference in objective response (P=0.171) and median overall survival (P=0.131) between both groups. The most common grade three to four adverse events were neutropenia and thrombocytopenia. No patient died of treatment-related causes. The XELOX group had significantly lower frequencies of hospital visits than the GEMOX group (P<0.001). CONCLUSION XELOX showed significant noninferiority to GEMOX in terms of 6-month PFS rate. Thus, XELOX could be an alternative first-line treatment of BCTs. TRIAL REGISTRATION This study was registered in ClinicalTrials.gov (number NCT01470443).
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Affiliation(s)
- S T Kim
- Division of Hemato-oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - J H Kang
- Division of Hemato-oncology, Department of Medicine, Gyeongsang National University Hospital, Jinju
| | - J Lee
- Division of Hemato-oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - H W Lee
- Division of Hemato-oncology, Department of Medicine, Ajou University School of Medicine, Suwon
| | - S Y Oh
- Division of Hemato-oncology, Department of Medicine, Dong-A University School of Medicine, Busan
| | - J S Jang
- Division of Hemato-oncology, Department of Medicine, Chung-Ang University College of Medicine, Seoul
| | - M A Lee
- Division of Hemato-oncology, Department of Medicine, Seoul St Mary's Hospital, Catholic University, Seoul
| | - B S Sohn
- Division of Hemato-oncology, Department of Medicine, Sanggye Paik Hospital, Inje University College of Medicine, Seoul
| | - S Y Yoon
- Division of Hemato-oncology, Department of Medicine, Konkuk University Medical Center, Seoul
| | - H J Choi
- Division of Hemato-oncology, Department of Medicine, Yonsei University College of Medicine, Seoul
| | - J H Hong
- Division of Hemato-oncology, Department of Medicine, Incheon St Mary's Hospital, Catholic University, Incheon
| | - M-J Kim
- Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, South Korea
| | - S Kim
- Statistics and Data Center, Research Institute for Future Medicine, Samsung Medical Center, Seoul, South Korea
| | - Y S Park
- Division of Hemato-oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - J O Park
- Division of Hemato-oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul.
| | - H Y Lim
- Division of Hemato-oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul.
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Hong JH, Charles ST. WELL-BEING AND AGE: A COMPARISON OF TWO CULTURES. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.660] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- J H Hong
- University of California, Irvine, Irvine, California, United States
| | - S T Charles
- University of California, Irvine, Irvine, CA, USA
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Charles S, Hong JH, Leger KA, Fingerman K. GETTING BY WITH A LITTLE HELP FROM MY FRIENDS: FUNCTIONAL LIMITATIONS AND DAILY EMOTIONAL EXPERIENCES. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S Charles
- The University of California, Irvine, Irvine, California, United States
| | - J H Hong
- University of California, Irvine, CA, USA
| | - K A Leger
- University of California, Irvine, CA, USA
| | - K Fingerman
- The University of Texas at Austin, Austin, TX, USA
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Abstract
Pneumomediastinum is an uncommon radiographic finding resulting from various causes, such as trauma, infection and unknown causes. The pneumomediastinum due to minor trauma is rarely reported and treatment and diagnostic process is not established. We report on a 20-year-old female patient who initially presented with neck pain and dyspnoea following manual strangulation. Her chest X-ray and computed tomography (CT) of neck imaging showed subcutaneous emphysema and extensive pneumomediastinum, but pneumothorax was not shown. She was transferred to the thoracic surgery and admitted to the general ward. The patient's condition improved and she was discharged on the sixth hospital day. In conclusion, patients with pneumomediastinum following a minor strangulation injury can be observed alone without invasive testing or repeated imaging. CT scans are of great value for safe observation in determined patients and for the further evaluation of pneumomediastinum.
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Affiliation(s)
| | | | | | - JH Hong
- Chung-Ang University Hosiptal, Department of Thoracic and Cardiovascular Surgery, College of Medicine, 102 Heukseok-ro, Dongjak-gu, Seoul, Korea
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Seon CR, Hong JH, Song I, Jang J, Lee HY, An YH, Kim BS, Jeon TM, Park JS, Choe W, Lee HG, Pak S, Cheon MS, Choi JH, Kim HS, Biel W, Bernascolle P, Barnsley R. VUV spectroscopy in impurity injection experiments at KSTAR using prototype ITER VUV spectrometer. Rev Sci Instrum 2017; 88:083511. [PMID: 28863699 DOI: 10.1063/1.4998970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The ITER vacuum ultra-violet (VUV) core survey spectrometer has been designed as a 5-channel spectral system so that the high spectral resolving power of 200-500 could be achieved in the wavelength range of 2.4-160 nm. To verify the design of the ITER VUV core survey spectrometer, a two-channel prototype spectrometer was developed. As a subsequent step of the prototype test, the prototype VUV spectrometer has been operated at KSTAR since the 2012 experimental campaign. From impurity injection experiments in the years 2015 and 2016, strong emission lines, such as Kr xxv 15.8 nm, Kr xxvi 17.9 nm, Ne vii 46.5 nm, Ne vi 40.2 nm, and an array of largely unresolved tungsten lines (14-32 nm) could be measured successfully, showing the typical photon number of 1013-1015 photons/cm2 s.
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Affiliation(s)
- C R Seon
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - J H Hong
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - I Song
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - J Jang
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - H Y Lee
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - Y H An
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - B S Kim
- Department of Energy Systems Research, Ajou University, Suwon 443-749, South Korea
| | - T M Jeon
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - J S Park
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - W Choe
- Korea Advanced Institute of Science and Technology, Daehak-ro, 291 Yuseong-gu, Daejeon, South Korea
| | - H G Lee
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - S Pak
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - M S Cheon
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - J H Choi
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - H S Kim
- National Fusion Research Institute, Gwahangno, 169-148 Yuseong-gu, Daejeon, South Korea
| | - W Biel
- Institut für Plasmaphysik, Forschungszentrum Jülich Gmbh, EURATOM Association, Trilateral Euregio Cluster, D-52425 Jülich, Germany
| | - P Bernascolle
- ITER Organization, Route de Vinon-sur-Verdon - CS 90 046, 13067 Saint-Paul-lez-Durance, France
| | - R Barnsley
- ITER Organization, Route de Vinon-sur-Verdon - CS 90 046, 13067 Saint-Paul-lez-Durance, France
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Shin DH, Kim YS, Yoo DS, Kim MJ, Oh CS, Hong JH, Lee E, Chai JY, Seo M. A Case of Ectopic Paragonimiasis in a 17th Century Korean Mummy. J Parasitol 2017; 103:399-403. [PMID: 28395568 DOI: 10.1645/16-63] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Archaeoparasitological studies on fossilized feces obtained from Joseon Dynasty (1392-1910 CE) mummies have provided invaluable data on the patterns of parasitic infection in pre-modern Korean societies. In our recent radiological investigation of a 17th century Joseon mummy discovered in Cheongdo (South Korea), we located a liver mass just below the diaphragm. Anatomical dissection confirmed the presence of a mass of unknown etiology. A subsequent parasitological examination of a sample of the mass revealed a large number of ancient Paragonimus sp. eggs, making the current report the first archaeoparasitological case of liver abscess caused by ectopic paragonimiasis.
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Affiliation(s)
- D H Shin
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - Y-S Kim
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - D S Yoo
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - M J Kim
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - C S Oh
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - J H Hong
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - E Lee
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - J Y Chai
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
| | - M Seo
- Bioanthropology and Paleopathology Lab, Institute of Forensic Science, Seoul National University College of Medicine, 103 Daehak-ro (Yongon-dong), Jongno-gu, Seoul 03080, South Korea. Correspondence should be sent to M. Seo at:
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15
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Lee S, Park HT, Hong JH, Song JY, Lee JK, Kim T. Paratubal Borderline Malignancy in an Adolescent Female Treated with Laparo-Endoscopic Single-Site Surgery (LESS) and a Review of the Literature. J Minim Invasive Gynecol 2016. [DOI: 10.1016/j.jmig.2016.08.702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Chung SP, Yune HY, Park YS, You JS, Hong JH, Kong T, Park JW, Chung HS, Park I. Usefulness of mean platelet volume as a marker for clinical outcomes after out-of-hospital cardiac arrest: a retrospective cohort study. J Thromb Haemost 2016; 14:2036-2044. [PMID: 27437641 DOI: 10.1111/jth.13421] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2015] [Accepted: 06/27/2016] [Indexed: 01/06/2023]
Abstract
Essentials It is unknown whether mean platelet volume (MPV) estimates outcomes after cardiac arrest (CA). We investigated whether MPV was associated with 30-day neurologic outcome and mortality after CA. Elevated MPV at admission was associated with poor neurological outcomes and mortality at 30 days. Identifying levels of MPV is helpful for estimating disease severity among resuscitated patients. SUMMARY Background Whole-body ischemia followed by reperfusion during cardiac arrest and after return of spontaneous circulation (ROSC) triggers systemic sterile inflammatory responses, inducing a sepsis-like state during post-cardiac arrest syndrome. Activated platelets are enlarged, and contain vasoactive and prothrombic factors that aggravate systemic inflammation and endothelial dysfunction. Objectives To investigate whether mean platelet volume (MPV) is useful as a marker for early mortality and neurologic outcomes in patients who achieve ROSC after out-of-hospital cardiac arrest (OHCA). Methods OHCA records from the Emergency Department Cardiac Arrest Registry were retrospectively analyzed. Patients who survived for > 24 h after ROSC were included. We evaluated mortality and cerebral performance category scores after 30 days. Results We analyzed records from 184 patients with OHCA. Increased 30-day mortality among patients who achieved ROSC after OHCA was associated with MPV at admission (hazard ratio [HR] 1.36; 95% confidence interval [CI] 1.06-1.75). An elevated MPV at admission was also associated with poor neurologic outcomes (HR 1.28; 95% CI 1.06-1.55). Conclusions An elevated MPV was independently associated with increased 30-day mortality, with the highest discriminative value being obtained upon admission after OHCA. An elevated MPV on admission was associated with poor neurologic outcomes. High MPVs are helpful for estimating 30-day mortality and neurologic outcomes among patients who achieve ROSC after OHCA.
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Affiliation(s)
- S P Chung
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - H Y Yune
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Y S Park
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - J S You
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea.
| | - J H Hong
- Department of Research Affairs, Biostatistics Collaboration Unit, Yonsei University College of Medicine, Seoul, Korea
| | - T Kong
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - J W Park
- Department of Emergency Medicine, Kosin University College of Medicine, Busan, Korea
| | - H S Chung
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - I Park
- Department of Emergency Medicine, Yonsei University College of Medicine, Seoul, Korea
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Koo YJ, Min KJ, Hong JH, Lee JK. Age at Diagnosis and Mass Size as Clinical Indications for Hysteroscopic Mass Excision. J Minim Invasive Gynecol 2015; 22:S188. [DOI: 10.1016/j.jmig.2015.08.687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Lee JL, Kim MK, Park I, Ahn JH, Lee DH, Ryoo HM, Song C, Hong B, Hong JH, Ahn H. RandomizEd phase II trial of Sunitinib four weeks on and two weeks off versus Two weeks on and One week off in metastatic clear-cell type REnal cell carcinoma: RESTORE trial. Ann Oncol 2015; 26:2300-5. [PMID: 26347107 DOI: 10.1093/annonc/mdv357] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Accepted: 08/19/2015] [Indexed: 11/12/2022] Open
Abstract
BACKGROUND The standard sunitinib schedule, 4 weeks on, followed by 2 weeks off (4/2 schedule), is associated with troublesome toxicities, and maintenance of adequate sunitinib dosing and drug levels, which are essential for achieving an optimal treatment outcome, is challenging. The objective of this study was to investigate the efficacy and safety of an alternative sunitinib dosing schedule of 2 weeks on and 1 week off (2/1 schedule) compared with the standard sunitinib schedule of 4 weeks on and 2 weeks off (4/2 schedule). PATIENTS AND METHODS In this multicenter, randomized, open-label, phase II trial, treatment-naïve patients with clear-cell type metastatic renal cell carcinoma (mRCC) were randomly assigned to 4/2 or 2/1 schedules after stratification by Memorial Sloan Kettering Cancer Center risk group and the presence or absence of measurable lesions. The primary end point was the 6-month failure-free survival (FFS) rate, determined by intention-to-treat analysis. RESULTS From November 2007 to February 2014, 76 patients were accrued, and 74 were eligible. FFS rates at 6 months were 44% with the 4/2 schedule (N = 36) and 63% with the 2/1 schedule (N = 38). Neutropenia (all grades, 61% versus 37%; grade 3-4, 28% versus 11%) and fatigue (all grades, 83% versus 58%) were more frequently observed with schedule 4/2. There was a strong tendency toward a lower incidence of stomatitis, hand-foot syndrome, and rash with schedule 2/1. Objective response rates (ORRs) were 47% in schedule 2/1 and 36% in schedule 4/2. With a median follow-up of 30.0 months, the median time to progression (TTP) was 12.1 months in schedule 2/1 and 10.1 months in schedule 4/2. CONCLUSION Sunitinib administered with a 2/1 schedule is associated with less toxicity and higher FFS at 6 months than a 4/2 schedule, without compromising the efficacy in terms of ORR and TTP (NCT00570882).
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Affiliation(s)
- J L Lee
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - M K Kim
- Department of Hematology and Oncology, Yeungnam University College of Medicine, Daegu
| | - I Park
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul Department of Internal Medicine, Gachon University Gil Medical Center, Inchon
| | - J-H Ahn
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - D H Lee
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - H M Ryoo
- Department of Hematology and Oncology, Daegu Catholic University Medical Center, Daegu
| | - C Song
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - B Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J H Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - H Ahn
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Shin JM, Hong JH, Ko JY, Ro YS, Kim JE. Erythematous vesiculopapular eruptions on the extremities. Clin Exp Dermatol 2015; 40:943-5. [PMID: 25960170 DOI: 10.1111/ced.12666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/09/2014] [Indexed: 11/26/2022]
Affiliation(s)
- J M Shin
- Department of Dermatology, Hanyang University Hospital, Seoul, Korea
| | - J H Hong
- Department of Dermatology, Hanyang University Hospital, Seoul, Korea
| | - J Y Ko
- Department of Dermatology, Hanyang University Hospital, Seoul, Korea
| | - Y S Ro
- Department of Dermatology, Hanyang University Hospital, Seoul, Korea
| | - J E Kim
- Department of Dermatology, Hanyang University Hospital, Seoul, Korea
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20
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Fan MS, Hong JH, Ng ML, Lee LK, Lui PK, Choy YH. Western Influences on Chinese Sexuality: Insights from a Comparison of the Sexual Behavior and Attitudes of Shanghai and Hong Kong Freshmen at Universities. ACTA ACUST UNITED AC 2015; 21:158-66. [PMID: 12291366 DOI: 10.1080/01614576.1995.11074148] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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21
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Choi YJ, Lee SH, Lee JL, Ahn JH, Lee KH, You D, Hong B, Hong JH, Ahn H. Phase II study of pemetrexed in combination with cisplatin in patients with advanced urothelial cancer: the PECULIAR study (KCSG 10-17). Br J Cancer 2014; 112:260-5. [PMID: 25429526 PMCID: PMC4453451 DOI: 10.1038/bjc.2014.591] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2014] [Revised: 10/07/2014] [Accepted: 11/01/2014] [Indexed: 12/29/2022] Open
Abstract
Background: Pemetrexed has shown a favourable response rate of about 30% with minimal toxicity when used as a single agent for treatment of advanced urothelial carcinoma. This phase II study evaluated the efficacy and safety of pemetrexed plus cisplatin in advanced urothelial carcinoma. Methods: This multicentre, single-arm, open-label, phase II clinical trial enrolled patients who had advanced urothelial carcinoma, ECOG PS 0–2, and measurable disease. Pemetrexed 500 mg m−2 with cisplatin 70 mg m−2 on day 1 were administered every 3 weeks. The primary endpoint was the objective response rate (ORR). Secondary endpoints were progression-free survival (PFS), overall survival (OS), and toxicity. Results: A total of 42 patients were enrolled (median age, 66 years; ECOG 0–1, 100% visceral metastasis, 54.8% recurrent disease, 57.1%). Twenty-seven partial responses for an ORR of 64.3% (95% CI, 49.2%–77.0%) were documented. Seven patients had stable disease. Median PFS and OS were 6.9 (95% CI, 6.2–7.6) and 14.4 (95% CI, 10.4–18.4) months, respectively. Grade 3 or 4 neutropenia was observed in 28.6% of patients. No patients experienced febrile neutropenia. Conclusion: The combination of pemetrexed and cisplatin is active, and well tolerated in patients with advanced urothelial cancer as a first-line treatment.
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Affiliation(s)
- Y J Choi
- 1] Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea [2] Division of Hemato-oncology, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Republic of Korea
| | - S H Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - J-L Lee
- 1] Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea [2] Department of Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J-H Ahn
- 1] Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea [2] Department of Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - K-H Lee
- Department of Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - D You
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - B Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - J H Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - H Ahn
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
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22
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Lee JH, Oh S, Lee WR, Ko WH, Kim KP, Lee KD, Jeon YM, Yoon SW, Cho KW, Narihara K, Yamada I, Yasuhara R, Hatae T, Yatsuka E, Ono T, Hong JH. Edge profile measurements using Thomson scattering on the KSTAR tokamak. Rev Sci Instrum 2014; 85:11D407. [PMID: 25430170 DOI: 10.1063/1.4890258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In the KSTAR Tokamak, a "Tangential Thomson Scattering" (TTS) diagnostic system has been designed and installed to measure electron density and temperature profiles. In the edge system, TTS has 12 optical fiber bundles to measure the edge profiles with 10-15 mm spatial resolution. These 12 optical fibers and their spatial resolution are not enough to measure the pedestal width with a high accuracy but allow observations of L-H transition or H-L transitions at the edge. For these measurements, the prototype ITER edge Thomson Nd:YAG laser system manufactured by JAEA in Japan is installed. In this paper, the KSTAR TTS system is briefly described and some TTS edge profiles are presented and compared against the KSTAR Charge Exchange Spectroscopy and other diagnostics. The future upgrade plan of the system is also discussed in this paper.
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Affiliation(s)
- J H Lee
- National Fusion Research Institute, Daejeon, South Korea
| | - S Oh
- National Fusion Research Institute, Daejeon, South Korea
| | - W R Lee
- National Fusion Research Institute, Daejeon, South Korea
| | - W H Ko
- National Fusion Research Institute, Daejeon, South Korea
| | - K P Kim
- National Fusion Research Institute, Daejeon, South Korea
| | - K D Lee
- National Fusion Research Institute, Daejeon, South Korea
| | - Y M Jeon
- National Fusion Research Institute, Daejeon, South Korea
| | - S W Yoon
- National Fusion Research Institute, Daejeon, South Korea
| | - K W Cho
- National Fusion Research Institute, Daejeon, South Korea
| | - K Narihara
- National Institute for Fusion Science, Nagoya, Japan
| | - I Yamada
- National Institute for Fusion Science, Nagoya, Japan
| | - R Yasuhara
- National Institute for Fusion Science, Nagoya, Japan
| | - T Hatae
- Japan Atomic Energy Agency, Naka, Japan
| | - E Yatsuka
- Japan Atomic Energy Agency, Naka, Japan
| | - T Ono
- Japan Atomic Energy Agency, Naka, Japan
| | - J H Hong
- Department of Physics, KAIST, South Korea
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Seon CR, Hong JH, Jang J, Lee SH, Choe W, Lee HH, Cheon MS, Pak S, Lee HG, Biel W, Barnsley R. Test of prototype ITER vacuum ultraviolet spectrometer and its application to impurity study in KSTAR plasmas. Rev Sci Instrum 2014; 85:11E403. [PMID: 25430310 DOI: 10.1063/1.4886430] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
To optimize the design of ITER vacuum ultraviolet (VUV) spectrometer, a prototype VUV spectrometer was developed. The sensitivity calibration curve of the spectrometer was calculated from the mirror reflectivity, the grating efficiency, and the detector efficiency. The calibration curve was consistent with the calibration points derived in the experiment using the calibrated hollow cathode lamp. For the application of the prototype ITER VUV spectrometer, the prototype spectrometer was installed at KSTAR, and various impurity emission lines could be measured. By analyzing about 100 shots, strong positive correlation between the O VI and the C IV emission intensities could be found.
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Affiliation(s)
- C R Seon
- National Fusion Research Institute, Gwahangno 113, Yuseong-gu, Daejeon, South Korea
| | - J H Hong
- Korea Advanced Institute of Science and Technology, Gwahangno 335, Yuseong-gu, Daejeon, South Korea
| | - J Jang
- Korea Advanced Institute of Science and Technology, Gwahangno 335, Yuseong-gu, Daejeon, South Korea
| | - S H Lee
- Korea Advanced Institute of Science and Technology, Gwahangno 335, Yuseong-gu, Daejeon, South Korea
| | - W Choe
- Korea Advanced Institute of Science and Technology, Gwahangno 335, Yuseong-gu, Daejeon, South Korea
| | - H H Lee
- National Fusion Research Institute, Gwahangno 113, Yuseong-gu, Daejeon, South Korea
| | - M S Cheon
- National Fusion Research Institute, Gwahangno 113, Yuseong-gu, Daejeon, South Korea
| | - S Pak
- National Fusion Research Institute, Gwahangno 113, Yuseong-gu, Daejeon, South Korea
| | - H G Lee
- National Fusion Research Institute, Gwahangno 113, Yuseong-gu, Daejeon, South Korea
| | - W Biel
- Institut für Plasmaphysik, Forschungszentrum Jülich Gmbh, EURATOM Association, Trilateral Euregio Cluster, D-52425 Jülich, Germany
| | - R Barnsley
- ITER Organization, Cadarache Centre, 13108 Saint-Paul-Lez-Durance, France
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Yim GJ, Cheong YW, Hong JH, Hur W. The role of each compartment in a two-compartment vertical flow reactor for ferruginous mine water treatment. Water Res 2014; 62:11-19. [PMID: 24929991 DOI: 10.1016/j.watres.2014.05.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 04/24/2014] [Accepted: 05/12/2014] [Indexed: 06/03/2023]
Abstract
A vertical flow reactor (VFR) has been suggested for remediation of ferruginous mine drainage that passes down through an accreting bed of ochre. However, a VFR has a limited operation time until the system begins to overflow. In this study, a mathematical model was developed as a part of the effort to explore the operation of a VFR, showing dynamic changes in the head differences, ochre depths, and Fe(II)/Fe(III) concentrations in the effluent flow. The analysis showed that VFR operation time extended from 148.5 days to 163 days in an equally divided and to 168.4 days in asymmetrically (0.72:0.28) divided two-compartment VFR, suggesting that an optimum compartment ratio exists that maximizes the VFR operation time. A constant head filtration in the first compartment maximized filtration efficiency and thus prolonged VFR longevity in the two-compartment VFR. Fe(II) oxidation and ochre formation should be balanced with the permeability of the ochre bed to maximize the VFR operation time and minimize the residual Fe(II) in the effluent. Accelerated Fe(II) oxidation affected the optimum ratio of the compartment area and reduced the residual Fe(II) in the effluent. The VFR operation time can be prolonged significantly from 764 days to 3620 days by increasing the rate of ochre formation, much more than by accelerating the Fe(II) oxidation. During the prolonged VFR operation, ochre formed largely in the first compartment, while overflowing mine water with reduced iron content was effectively filtered in the second compartment. These results not only provide a better understanding of VFR operation but also suggest the direction of evolution of two-compartment VFR toward a compact and highly efficient facility integrated with an aerated cascade and with automatic coagulant feeding.
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Affiliation(s)
- G J Yim
- Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources, 92 Gwahang-no, Yuseong-gu, Daejeon 305-350, Republic of Korea
| | - Y W Cheong
- Geologic Environment Division, Korea Institute of Geoscience and Mineral Resources, 92 Gwahang-no, Yuseong-gu, Daejeon 305-350, Republic of Korea
| | - J H Hong
- Mine Reclamation Corporation, 389-14 Seonghwan-eup Cheonan-si, Chungcheongnam-do 331-803, Republic of Korea
| | - W Hur
- Dept. of Bioengineering and Technology, Kangwon National University, 192-1 Hyoja-dong, Chuncheon, Kangwon-do 200-701, Republic of Korea.
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Jang EJ, Jeong H, Kang JO, Kim NJ, Kim MS, Choi SH, Yoo SE, Hong JH, Bae MA, Hwang ES. TM-25659 enhances osteogenic differentiation and suppresses adipogenic differentiation by modulating the transcriptional co-activator TAZ. Br J Pharmacol 2012; 165:1584-94. [PMID: 21913895 DOI: 10.1111/j.1476-5381.2011.01664.x] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND AND PURPOSE The transcriptional co-activator with PDZ-binding motif (TAZ) is characterized as a transcriptional modulator of mesenchymal stem cell differentiation into osteoblasts and adipocytes. Moreover, increased TAZ activity in the nucleus enhances osteoblast differentiation and suppresses adipocyte development by interacting with runt-related transcription factor 2 (RUNX2) and PPARγ, respectively. Therefore, it would be of interest to identify low MW compounds that modulate nuclear TAZ activity. EXPERIMENTAL APPROACH High-throughput screening was performed using a library of low MW compounds in order to identify TAZ modulators that enhance nuclear TAZ localization. The effects and molecular mechanisms of a TAZ modulator have been characterized in osteoblast and adipocyte differentiation. KEY RESULTS We identified 2-butyl-5-methyl-6-(pyridine-3-yl)-3-[2'-(1H-tetrazole-5-yl)-biphenyl-4-ylmethyl]-3H-imidazo[4,5-b]pyridine] (TM-25659) as a TAZ modulator. TM-25659 enhanced nuclear TAZ localization in a dose-dependent manner and attenuated PPARγ-mediated adipocyte differentiation by facilitating PPARγ suppression activity of TAZ. In addition, TAZ-induced RUNX2 activity activation was further increased in osteoblasts, causing increased osteoblast differentiation. Accordingly, TM-25659 suppressed bone loss in vivo and decreased weight gain in an obesity model. After oral administration, TM-25659 had a favourable pharmacokinetic profile. CONCLUSION AND IMPLICATIONS TM-25659 stimulated nuclear TAZ localization and thus caused TAZ to suppress PPARγ-dependent adipogenesis and enhance RUNX2-induced osteoblast differentiation in vitro and in vivo. Our data suggest that TM-25659 could be beneficial in the control of obesity and bone loss.
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Affiliation(s)
- E J Jang
- College of Pharmacy and Division of Life and Pharmaceutical Sciences and Center for Cell Signaling and Drug Discovery Research, Ewha Womans University, Seoul Korea
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Lee JL, Ahn JH, Lim HY, Park SH, Lee SH, Kim TM, Lee DH, Cho YM, Song C, Hong JH, Kim CS, Ahn H. Multicenter phase II study of sunitinib in patients with non-clear cell renal cell carcinoma. Ann Oncol 2012; 23:2108-2114. [PMID: 22228449 DOI: 10.1093/annonc/mdr586] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023] Open
Abstract
BACKGROUND Retrospective and molecular biologic data suggest that sunitinib may be effective in patients with non-clear cell renal cell carcinoma (nccRCC). PATIENTS AND METHODS Eligibility criteria included advanced nccRCC except for collecting duct carcinoma and sarcomatoid carcinoma without identifiable renal cell carcinoma subtypes. Patients were treated with 50 mg/day oral sunitinib for 4 weeks, followed by 2 weeks of rest. The primary end point was overall response rate (RR). RESULTS Thirty-one eligible patients were enrolled. Twenty-four patients (77%) had prior nephrectomy. By Memorial Sloan-Kettering Cancer Center criteria, 8 patients (26%) had poor risk and 14 (45%) had intermediate risk. Twenty-two patients had papillary renal cell carcinoma (RCC), and three had chromophobe RCC. Eleven patients had partial response with a RR of 36% (95% confidence interval (CI) 19% to 52%) and an additional 17 patients (55%) had stable disease. Median duration of response was 12.7 months (95% CI 6.3-19.1 months), and median progression-free survival was 6.4 months (95% CI 4.2-8.6 months). At a median follow-up duration of 18.7 months (95% CI 13.7-23.7 months), 13 patients (42%) had died, resulting in an estimated median survival of 25.6 months (95% CI 8.4-42.9 months). Toxicity profiles were commensurate with prior reports. CONCLUSIONS Sunitinib has promising activity in patients with nccRCC (NCT01219751).
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Affiliation(s)
- J-L Lee
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul.
| | - J-H Ahn
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - H Y Lim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - S H Park
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul
| | - S H Lee
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul
| | - T M Kim
- Department of Internal Medicine, Seoul National University College of Medicine, Seoul
| | - D-H Lee
- Department of Oncology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - Y M Cho
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul
| | - C Song
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - J H Hong
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - C-S Kim
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - H Ahn
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
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Abstract
Influx of Ca(2+) is a central component of the receptor-evoked Ca(2+) signal. A ubiquitous form of Ca(2+) influx comes from Ca(2+) channels that are activated in response to depletion of the endoplasmic reticulum Ca(2+) stores and are thus named the store-operated Ca(2+) -influx channels (SOCs). One form of SOC is the transient receptor potential canonical (TRPC) channels. A major question in the field of Ca(2+) signalling is the molecular mechanism that regulates the opening and closing of these channels. All TRPC channels have a Homer-binding ligand and two conserved negative charges that interact with two terminal lysines of the stromal interacting molecule 1 (STIM1). The Homer and STIM1 sites are separated by only four amino acid residues. Based on available results, we propose a molecular mechanism by which Homer couples TRPC channels to IP(3) receptors (IP(3) Rs) to keep these channels in the closed state. Dissociation of the TRPCs-Homer-IP(3) Rs complex allows STIM1 access to the TRPC channels negative charges to gate open these channels.
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Affiliation(s)
- J P Yuan
- Department of Integrative Physiology, University of North Texas Health Science Center, Fort Worth, Texas, USA
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Kwon HG, Hong JH, Jang SH. Anatomic location and somatotopic arrangement of the corticospinal tract at the cerebral peduncle in the human brain. AJNR Am J Neuroradiol 2011; 32:2116-9. [PMID: 21903908 DOI: 10.3174/ajnr.a2660] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
BACKGROUND AND PURPOSE Little is known about the detailed anatomic location and somatotopic arrangement at the CP. Using DTT with FSL tools, we conducted an investigation of the anatomic location and somatotopic arrangement of the CST at the CP in the human brain. MATERIALS AND METHODS We recruited 43 healthy volunteers for this study. DTI was obtained by using 1.5T, and CSTs for the hand and leg were obtained by using the FSL tool. The somatotopic location of the CST was evaluated as the highest probabilistic location at the upper and lower midbrain. The posterior boundary was determined as the line between the interpeduncular fossa and the lateral sulcus; we then drew a rectangle on the basis of the boundary of the CP. RESULTS In the mediolateral direction, the highest probabilistic locations for the hand and leg were an average of 60.46% and 69.98% from the medial boundary at the upper midbrain level and 53.44% and 62.76% at the lower midbrain level, respectively. As for the anteroposterior direction, the highest probabilistic locations for the hand and leg were an average of 28.26% and 32.03% from the anterior boundary at the upper midbrain level and 30.19% and 33.59% at the lower midbrain level, respectively. CONCLUSIONS We found that the hand somatotopy for the CST is located at the middle portion of the CP and the leg somatotopy is located lateral to the hand somatotopy.
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Affiliation(s)
- H G Kwon
- Department of Physical Therapy, Daegu University, Daegu, Republic of Korea
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Hong JH, Kwon HG, Jang SH. Probabilistic somatotopy of the spinothalamic pathway at the ventroposterolateral nucleus of the thalamus in the human brain. AJNR Am J Neuroradiol 2011; 32:1358-62. [PMID: 21596807 DOI: 10.3174/ajnr.a2497] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The STP has been regarded as the most plausible neural tract responsible for pathogenesis of central poststroke pain. The VPL nucleus has been a target for neurosurgical procedures for control of central poststroke pain. However, to our knowledge, no DTI studies have been conducted to investigate the somatotopic location of the STP at the VPL nucleus of the thalamus. In the current study, we attempted to investigate this location in the human brain by using a probabilistic tractography technique of DTI. MATERIALS AND METHODS DTI was performed at 1.5T by using a Synergy-L SENSE head coil. STPs for both the hand and leg were obtained by selection of fibers passing through 2 regions of interest (the area of the spinothalamic tract in the posterolateral medulla and the postcentral gyrus) for 41 healthy volunteers. Somatotopic mapping was obtained from the highest probabilistic location at the ACPC level. RESULTS The highest probabilistic locations for the hand and leg were an average of 16.86 and 16.37 mm lateral to the ACPC line and 7.53 and 8.71 mm posterior to the midpoint of the ACPC line, respectively. Somatotopic locations for the hand and leg were different in the anteroposterior direction (P < .05); however, no difference was observed in the mediolateral direction (P > .05). CONCLUSIONS We found the somatotopic locations for hand and leg of the STP at the VPL nucleus; these somatotopies were arranged in the anteroposterior direction.
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Affiliation(s)
- J H Hong
- Department of Physical Therapy, Yeungnam College of Science and Technology, Daegu, Republic of Korea
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Hong JH, Yoon EK, Chung SJ, Chung L, Cha SM, O'Mahony M, Vickers Z, Kim KO. Sensory characteristics and cross-cultural consumer acceptability of Bulgogi (Korean traditional barbecued beef). J Food Sci 2011; 76:S306-13. [PMID: 22417445 DOI: 10.1111/j.1750-3841.2011.02173.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
UNLABELLED Bulgogi (Korean traditional barbecued beef) is the most well-known Korean food to foreigners. There are, however, few studies on its sensory characteristics and consumer acceptability. This study was performed to identify the sensory attributes of Bulgogi samples prepared with different formulation and to compare the consumer acceptability in Korea and the United States. Bulgogi samples were prepared with varying levels of sugar and soy sauce with/without garlic or sesame oil. Descriptive analysis was conducted by 8 trained panelists. In consumer tests, 42 consumers in Seoul, Korea, 53 consumers in Davis (Calif., U.S.A.), and 39 consumers in St. Paul (Minn., U.S.A.) participated. Higher levels of sugar and soy sauce (SSS) significantly increased sweetness, saltiness, MSG taste, and soy sauce odor/flavor compared to the control made with the standard formula (CON). Elimination of sesame oil (ESO) significantly decreased sesame oil odor/flavor and oiliness, but increased green onion flavor. Elimination of garlic (EGC) significantly increased grilled beef odor/flavor, sesame oil odor/flavor, and oiliness, but decreased intensities of all the other attributes except bitterness. The consumers in Korea and the United States rated their overall liking for all samples similarly, preferring SSS to CON, EGC, and ESO. However Korean consumers seemed to detect the differences caused by formulation changes better than the U.S. consumers and these perceived differences seemed to impact the hedonic and the just-about-right ratings. Increase in soy sauce and sugar increased both Korean and the U.S. consumers' acceptability of Bulgogi, whereas eliminating garlic did not influence the consumer acceptability despite of its significant impact on sensory attributes. PRACTICAL APPLICATION The food industry is increasingly interested in ethnic foods that satisfy sophisticated appetite of today's consumers. Korean cuisine is recently gaining popularity and perceived as "adventurous and spicy," appealing to researchers and marketers in the food industry worldwide. However, it is not easy to develop a new product based on ethnic cuisine because nonsensory factors, such as food neophobia and openness to new culture, can evoke adverse responses from the consumers. A systematic sensory approach can guide the product development by identifying both sensory and nonsensory factors affecting consumer acceptability. This study investigated sensory attributes of Bulgogi (Korean traditional barbecued beef), one of the most famous Korean foods, and compared consumer acceptability between Korea and the United States. The outcomes of this study, such as flavor profiles, consumer responses, evaluation procedure, and approaches taken for cross-cultural comparison, will provide the food industries with valuable information that will help to develop effective strategies for commercializing ethnic foods including recipe development for Bulgogi marinades.
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Affiliation(s)
- J H Hong
- Dept. of Food Science and Enginering, Ewha Womans Univ., 11-1 Daehyun-Dong, Seodaemun-Gu, Seoul 120-750, Korea
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Abstract
This paper is about a glass-type wireless bio-signal transmitter that can monitor the user's health state in daily life. The device implemented in this study consists of the transmission part and the receiving part. The transmission part includes a photoplethysmography(PPG) sensor for detecting pulse wave signals, accelerometer for detecting kinetic signals, and a wireless controller for transmitting acquired bio-information. The receiving part is designed to check and process transmitted data through interoperation with a PC. In the experiments, we collected data during a sitting posture and repeated sit-to-stand motion in laboratory environment, and analyzed the data. As to accuracy, the correlation between the peak-to-peak intervals in the signals of the Biopac equipment and the developed device measured in a sitting posture was 97.5%, and that measured in sit-to-stand motion was 87%. In addition, when bio-signals were transmitted through wireless communication, the transmission was successful 100% without any error. When pulse wave signals and kinetic signals were obtained and compared, the results proved the accuracy and daily applicability of the developed device, and the glass-type wireless bio-signal transmission system is expected to be applicable to unobtrusive health monitoring for the user.
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Affiliation(s)
- E M Lee
- Department of Biomedical Engineering, College of Medicine, Chungbuk National University, South Korea.
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Hong JH, Song SH, Kim SE, Lee JK, Lee NW, Lee KW. Diffuse intraabdominal fibrosis and inflammation mimicking peritoneal carcinomatosis recurred after surgery for borderline ovarian tumor misdiagnosed by 18F-fluorodeoxyglucose-positron emission tomography. EUR J GYNAECOL ONCOL 2011; 32:231-233. [PMID: 21614927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
BACKGROUND 18F-fluorodeoxyglucose-positron emission tomography (FDG-PET) adds to conventional imaging in the detection and staging of peritoneal carcinomatosis. CASE REPORT Herein we report a 27-year-old woman with multiple intraperitoneal masses detected by 18F-FDG-PET, suggesting peritoneal carcinomatosis. She had undergone laparoscopic unilateral oophorectomy for a left ovarian mucinous borderline tumor approximately five years before. Based on imaging and intraoperative findings, multiple intraabdominal masses strongly suggested peritoneal recurrence from a previous ovarian borderline tumor, but it finally proved to be inflammation and fibrosis on histopathologic examination. CONCLUSION Although 18F-FDG-PET is well known to be a highly sensitive imaging tool for identification of peritoneal carcinomatosis, FDG uptake is not tumor-specific. Therefore, the possibility of a false-positive diagnosis due to benign conditions, such as inflammation, should always be taken into consideration.
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Affiliation(s)
- J H Hong
- Department of Obstetrics and Gynecology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
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Hong JH, Song SH, Lee JK, Lee NW, Lee KW. Metastatic cervical adenocarcinoma mimicking retroperitoneal sarcoma of the psoas muscle on imaging. EUR J GYNAECOL ONCOL 2011; 32:221-223. [PMID: 21614923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
BACKGROUND The incidence of bone metastasis is low in metastatic cervical cancer, especially in the case of adenocarcinoma. Incidental finding of a mass located in an unusual metastatic site in the absence of identifiable primary tumor often results in a difficult diagnostic problem. CASE REPORT We report the case of a 59-year-old woman presenting left-sided foot drop as her initial symptom. At first, after performing lumbar spine magnetic resonance imaging (MRI), a huge paravertebral mass with ipsilateral psoas muscle involvement suggesting retroperitoneal sarcoma was identified. However, cervical punch biopsy and sono-guided paravertebral mass biopsy revealed cervical adenocarcinoma with lumbar spinal metastasis. CONCLUSION Although rare, a neurological symptom such as foot drop, not vaginal symptoms, in a woman may be a first manifestation of metastatic cervical cancer, especially in spinal metastasis. Furthermore, any abnormal lesion should not be ignored because of the possibility of metastasis from the primary malignancy, especially in the current case of cervical adenocarcinoma, so a complete evaluation is always mandatory.
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Affiliation(s)
- J H Hong
- Department of Obstetrics and Gynecology, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
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Hsu LH, Chen YP, Chang HP, Chen YR, Hong JH, Chao A, Lai CH. Successful salvage treatment of recurrent endometrial cancer with multiple lung and abdominal metastases. EUR J GYNAECOL ONCOL 2011; 32:218-220. [PMID: 21614922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The prognosis of recurrent endometrial carcinoma is generally poor except for isolated vaginal or pelvic relapse without previous radiation. Recurrences associated with infield failure or distant metastasis carry a poor prognosis. We report a case of recurrent endometrial carcinoma treated with cytoreductive surgery, targeted radiation to lung metastasis defined by CT and PET and adjuvant chemo-hormone therapy followed by maintenance progestin therapy with a good outcome. This case implied that chemo-hormone therapy with targeted radiation should be evaluated in recurrent endometrial cancer with positive progesterone receptor for salvage treatment.
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Affiliation(s)
- L H Hsu
- Department of Obstetrics and Gynecology, Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Taoyuan, Taiwan
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Choi HY, Lim JE, Hong JH. Curcumin interrupts the interaction between the androgen receptor and Wnt/β-catenin signaling pathway in LNCaP prostate cancer cells. Prostate Cancer Prostatic Dis 2010; 13:343-9. [PMID: 20680030 DOI: 10.1038/pcan.2010.26] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Recently, studies have investigated the significance of the Wnt/β-catenin pathway in prostate cancer. The transcriptional activity of the androgen receptor (AR) is modulated by interaction with coregulators, one of which is β-catenin. Curcumin, a dietary yellow pigment of Curcuma longa, has emerged as having a chemopreventive role. Although curcumin has been shown to inhibit AR expression, its molecular mechanism has not been fully elucidated. In this study, whether curcumin mediates the Wnt/β-catenin signaling pathway with regard to AR/β-catenin interactions was studied. Curcumin was shown to induce significant inhibition of AR expression in a dose-dependent manner. Marked curcumin-induced suppression of β-catenin was shown in the nuclear and cytoplasmic extracts as well as whole cell lysates. Further analysis revealed that phosphorylation of Akt and glycogen synthase kinase-3β were attenuated, but phosphorylated β-catenin was increased after curcumin treatment. Finally, cyclin D1 and c-myc, the target gene of the β-catenin/T-cell factor transcriptional complex, were also decreased. These findings suggest that curcumin modulates the Wnt/β-catenin signaling pathway and might have a significant role in mediating inhibitory effects on LNCaP prostate cancer cells.
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Affiliation(s)
- H Y Choi
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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36
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Won M, Park KA, Byun HS, Sohn KC, Kim YR, Jeon J, Hong JH, Park J, Seok JH, Kim JM, Yoon WH, Jang IS, Shen HM, Liu ZG, Hur GM. Novel anti-apoptotic mechanism of A20 through targeting ASK1 to suppress TNF-induced JNK activation. Cell Death Differ 2010; 17:1830-41. [PMID: 20448643 DOI: 10.1038/cdd.2010.47] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The zinc-finger protein A20 has crucial physiological functions as a dual inhibitor of nuclear factor-κB (NF-κB) activation and apoptosis in tumor necrosis factor (TNF) receptor 1 signaling pathway. Although the molecular basis for the anti-NF-κB function of A20 has been well elucidated, the anti-apoptotic function of A20 is largely unknown. Here, we report a novel mechanism underlying the anti-apoptotic function of A20: A20 blocks TNF-induced apoptosis through suppression of c-jun N-terminal kinase (JNK) by targeting apoptosis signal-regulating kinase1 (ASK1). First, the ectopic expression of A20 drastically inhibits TNF-induced JNK activation and apoptosis in multiple cell types including those deficient of NF-κB activation. Unexpectedly, the blunting effect of A20 on TNF-induced JNK activation is not mediated by affecting the TNFR1 signaling complex formation. Instead, A20 interacts with ASK1, an important MAPKK kinase in the JNK signaling cascade. More importantly, overexpression of wild-type A20, but not of mutant A20 (ZnF4; C624A, C627A), promotes degradation of the ASK1 through the ubiquitin-proteasome system. Taken together, the results from this study reveal a novel anti-apoptotic mechanism of A20 in TNF signaling pathway: A20 binds to ASK1 and mediates ASK1 degradation, leading to suppression of JNK activation and eventually blockage of apoptosis.
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Affiliation(s)
- M Won
- Department of Pharmacology, Research Institute for Medical Science, Infection Signaling Network Research Center, Daejeon Regional Cancer Center, College of Medicine, Chungnam National University, Daejeon, Korea
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Hall MN, Rosenkrantz WS, Hong JH, Griffin CE, Mendelsohn CM. Evaluation of the potential use of adipose-derived mesenchymal stromal cells in the treatment of canine atopic dermatitis: a pilot study. Vet Ther 2010; 11:E1-E14. [PMID: 20957613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Stem cells and their potential therapeutic uses in human and veterinary medicine have generated considerable interest. These cells have a number of potentially unique immunologic properties; most notable are their reported regenerative and antiinflammatory capabilities. The aim of this prospective pilot study was to evaluate the efficacy of intravenously administered autogenous adipose-derived mesenchymal stem cells (AD-MSCs) in the treatment of canine atopic dermatitis. AD-MSCs administered intravenously at a dose of 1.3 million cells/kg did not significantly reduce the clinical signs of canine atopic dermatitis or the owner-assessed pruritus level.
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Affiliation(s)
- M N Hall
- Animal Dermatology Clinic, Tustin, CA 92780, USA
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Chao TC, Chen AM, Tu SJ, Tung CJ, Hong JH, Lee CC. The evaluation of 6 and 18 MeV electron beams for small animal irradiation. Phys Med Biol 2009; 54:5847-60. [DOI: 10.1088/0031-9155/54/19/012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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39
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Byun HS, Song JK, Kim YR, Piao L, Won M, Park KA, Choi BL, Lee H, Hong JH, Park J, Seok JH, Lee YJ, Kang SW, Hur GM. Caspase-8 has an essential role in resveratrol-induced apoptosis of rheumatoid fibroblast-like synoviocytes. Rheumatology (Oxford) 2008; 47:301-8. [PMID: 18276737 DOI: 10.1093/rheumatology/kem368] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
OBJECTIVE Resveratrol is a naturally occurring polyphenol, which possesses chemotherapeutic potential through its ability to trigger apoptosis. The objective of this study was to investigate the major determinant for the apoptotic cell death induction by resveratrol in fibroblast-like synoviocytes (FLS) derived from patients with RA. METHODS The effect of resveratrol on apoptotic cell death was quantified in a population of subG1 in RA FLS by flow cytometry. The underlying signalling mechanism for apoptotic death was examined by analysing mitochondrial membrane potential, activation of the caspase cascade and translocation of Bid. RESULTS We show that activation of caspase-8 is essential for triggering resveratrol-induced apoptotic signalling via the involvement of the mitochondrial pathway in RA FLS. Our findings also suggest that this enhanced apoptosis caused by resveratrol occurred in RA FLS irrespective of p53 status. Exposure to resveratrol caused extensive apoptotic cell death, along with a caspase-dependent (activation of caspase-9 and -3, poly ADPribose polymerase (PARP) cleavage and mitochondrial cytochrome c release) or caspase-independent [translocation of apoptosis-inducing factor (AIF) to the nucleus] signalling pathway. Analysis of upstream signalling events affected by resveratrol revealed that the activated caspase-8 triggered mitochondrial apoptotic events by inducing Bid cleavage without any alteration in the levels of Bax, Bcl-xL or Bcl2. The caspase-8 inhibitor or over-expression of crmA abrogated cell death induced by resveratrol and prevented processing of the downstream cascade. CONCLUSION The results suggest that resveratrol causes activation of caspase-8, which in turn results in modulation of mitochondrial apoptotic machinery to promote apoptosis of RA FLS.
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Affiliation(s)
- H S Byun
- Department of Pharmacology, Infection Signaling Network Research Center, Research Institute for Medical Sciences, Daejeon, Korea
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Lee EM, Kim NH, Trang NT, Hong JH, Cha EJ, Lee TS. Respiratory rate detection algorithms by photoplethysmography signal processing. Annu Int Conf IEEE Eng Med Biol Soc 2008; 2008:1140-1143. [PMID: 19162865 DOI: 10.1109/iembs.2008.4649362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Photoplethysmography (PPG) offers the clinically meaningful parameters, such as, heart rate, and respiratory rate. In this study, we presented three respiratory signal detection algorithms using photoplethysmography raw data generated from commercial PPG sensor: (1)Min-Max (2)Peak-to-Peak (3)Pulse Shape. As reference signal, nasal sensor signal was acquired simultaneously and compared and analyzed. We used two types of moving average filtering technique to process three PPG parameters. In laboratory experiment, 6 subjects' PPG signals were measured when they respire ten and fifteen, and arbitrary times per minute. From the results, following conclusions were drawn. Min-Max and Peak-to-Peak algorithms perform better than Pulse shape algorithm. They can be used to detect respiratory rate. But, Pulse Shape algorithm was accurate for subject 4 only. More experimental data is necessary to improve the accuracy and reliability.
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Affiliation(s)
- E M Lee
- Department of Biomedical Engineering, College of Medicine, Chungbuk National University, Cheongju, South Korea.
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Min JW, Kong KA, Park BH, Hong JH, Park EA, Cho SJ, Ha EH, Park H. Effect of postnatal catch-up growth on blood pressure in children at 3 years of age. J Hum Hypertens 2007; 21:868-74. [PMID: 17476289 DOI: 10.1038/sj.jhh.1002215] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Size at birth and early postnatal growth rates appear to be important determinants of cardiovascular diseases. We examined whether intrauterine growth restriction or the subsequent catch-up postnatal weight gain leads to higher blood pressure in early life to confirm that size at birth and early postnatal growth rates appear to be important determinants of blood pressure changes in early life. Of 407 children born between December 2001 and November 2002 in hospital based-birth cohorts, 102 were followed up at 3 years of age (24.2%) at Ewha Womans University Hospital in Seoul, Korea. At 3 years of age, those who had a low birth weight still belonged in the lower-weight group than the others. The subjects' systolic blood pressure was correlated with their current weight (r=0.41) and weight gain (r=0.39), but not with their birth weight. Those with a higher current weight and higher weight gain based on birth weight (conditional weight gain) had the highest blood pressure. Systolic blood pressure increased by 0.2 mm Hg for every 100-g increase in weight at 3 years and, independently, by 1.5 mm Hg for every 100-unit increase in conditional weight gain. This study suggests that birth weight is not directly associated with blood pressure, but accelerated growth, which occurs mostly in those born with a low birth weight, seems to affect blood pressure in early life.
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Affiliation(s)
- J W Min
- Department of Preventive Medicine, School of Medicine, Ewha Womans University, Seoul, South Korea
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Jeon HC, Kim JW, Hong JH, Cho JH, Oh CH. Synthesis and in vitro activity of a series 1β-methylcarbapenem derivatives. Eur J Med Chem 2006; 41:1201-9. [PMID: 16797791 DOI: 10.1016/j.ejmech.2006.05.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Revised: 04/24/2006] [Accepted: 05/04/2006] [Indexed: 11/24/2022]
Abstract
The synthesis of a new series of 1beta-methylcarbapenems having pyrrolidine and piperidine moieties is described. Their in vitro antibacterial activities against both Gram-positive and Gram-negative bacteria were tested and the effect of substituent on the pyrrolidine ring was investigated. A particular compound (IIIb) having hydroxypyrrolidine moiety showed the most potent antibacterial activity.
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Affiliation(s)
- H C Jeon
- Department of Chemistry, Hanyang University, Seoul, Korea
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43
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Abstract
The efficacy of high-intensity focused ultrasound (HIFU) used for the treatment of localized prostate cancers has been demonstrated over the past decade. We present our early results after HIFU used as a single session in patients with clinically localized prostate cancer. A total of 58 patients were treated using the Ablatherm HIFU device with or without transurethral resection of the prostate (TURP). HIFU failure was defined as the presence of a cancer remnant on repeated biopsies or three consecutive increases in the prostate-specific antigen (PSA) >/=1.0 ng/ml. The mean follow-up was 14 months (range, 6-21 months). After HIFU treatment, 78% of patients had a decreased PSA level to <0.5 ng/ml within 3 months. The median value of the last PSA was 0.6 ng/ml and the median nadir PSA was 0.2 ng/ml. The success rates of HIFU were 85, 77 and 47% in low-, intermediate- and high-risk groups, respectively. The HIFU failure rate was closely associated with clinical stage, presence of cancer on TURP chips and nadir PSA on univariate analysis. However, the only significant predictor for HIFU failure was the nadir PSA value by multivariate Cox regression analysis. The operation-related complications were minimal. Although both the period and number of patients were limited to evaluate the clinical efficacy, HIFU appears to be a safe and effective treatment option in selected patients with prostate cancer.
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Affiliation(s)
- H M Lee
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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44
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Kim KH, Baek SO, Choi YJ, Sunwoo Y, Jeon EC, Hong JH. The emissions of major aromatic VOC as landfill gas from urban landfill sites in Korea. Environ Monit Assess 2006; 118:407-22. [PMID: 16897554 DOI: 10.1007/s10661-006-1507-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2005] [Accepted: 07/29/2005] [Indexed: 05/11/2023]
Abstract
In this study, concentrations of major aromatic VOCs were determined from landfill gas (LFG) at a total of five municipal landfill sites in Korea including Nan Ji (NJ), Woon Jung (WJ), Sam Poong (SP), Hoei Chun (HC), and No Hyung (NH). The concentration levels of those VOC were found to be significantly different, mainly as a function of such a parameter as landfill aging. The VOC concentrations measured from the unclosed landfill sites (e.g., WJ) were characterized by exceedingly high values above a few tens of ppm. However, the results of the abandoned site (e.g., SP) were about three orders of magnitude lower than the others so as to merely exceed the typical ambient concentration levels. It was most striking to find a systematic dominance of toluene over other aromatic VOC under most circumstances. The LFG flux values of all aromatic VOC and the four specific major ones (termed as BTEX: benzene, toluene, ethylbenzene, and xylene) were also computed for each vent pipe from all study sites using their concentrations and the concurrently determined environmental parameters. The results, if calculated in terms of the average BTEX quantity emitted per vent pipe, showed that the magnitude of their emissions can vary substantially, with the values ranging from 0.05 (SP) to 49.2 kg yr(-1) (WJ in wintertime). The LFG flux values of aromatic VOC, when compared to the contribution of non-methane hydrocarbons (NMHC), were able to explain a constant, but minor, proportion of the LFG carbon budget.
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Affiliation(s)
- Ki-Hyun Kim
- Department of Earth and Environmental Sciences, Sejong University, Goon Ja Dong 98, Seoul, Korea.
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45
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Abstract
Curcumin has become a focus of interest with regard to its antitumor effects in prostate cancer; however, the effects of this agent on invasion and metastasis remain less well understood. Matrix metalloproteinases (MMPs) are important prerequisite for tumor invasion and metastasis. In this study, we evaluated the effects of curcumin on prostate cancer cells (DU-145) invasion in both in vitro and in vivo. We utilized zymography and ELISA in order to determine the MMP-2 and MMP-9 activity. Matrigel invasion assay was performed to assess cellular invasion. We developed a xenograft model to examine tumorigenicity. Curcumin treatment resulted not only in a significant reduction in the expression of MMP-2 and MMP-9, but also effected the inhibition of invasive ability in vitro. Curcumin was shown to induce a marked reduction of tumor volume, MMP-2, and MMP-9 activity in the tumor-bearing site. The metastatic nodules in vivo were significantly fewer in the curcumin-treated group than untreated group. Curcumin appears to constitute a potential agent for the prevention of cancer progression, or at least of the initial phase of metastasis, in prostate cancer.
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Affiliation(s)
- J H Hong
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
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46
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Kim HR, Hong JH, Yoon CH, Lee SH, Park SH, Kim HY. Arthritis preceding acute biphenotypic leukemia. Clin Rheumatol 2005; 25:380-1. [PMID: 16220224 DOI: 10.1007/s10067-005-0025-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2005] [Accepted: 03/10/2005] [Indexed: 11/26/2022]
Affiliation(s)
- H R Kim
- Department of Internal Medicine, Division of Rheumatology, Kangnam St., Mary's Hospital, College of Medicine, The Catholic University of Korea, 505 Banpo-dong Seocho-ku, Seoul, 137-040, South Korea
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47
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Abstract
The effects of the manure compost/coconut peels on the ammonia removal efficiency were examined from dairy manure composting mixed with crop residues. The high rapid composting and manure compost biofiltration experiments consisted of three biofilter vessels with one composter. Dairy manure amended with rice hulls and sawdust was composted in 605 L pilot-scale composter using continuous aeration for 19 days. Three pilot-scale manure compost biofilter amended with media bed 500 mm in depth and 300 mm in diameter were built to clean ammonia emission from composter, respectively. The manure compost biofilter media in the three experimental vessels was using a 50:50 by weight mixture of manure compost and coconut peels (MC/CP). The ammonia concentrations at the inlet and outlet biofilter media were measured by boric acid traps as described by Hong et al. [Hong, J.H., Keener, H.M., Elwell, D.L., 1998. Preliminary study of the effect of continuous and intermittent aeration on composting hog manure amended with sawdust. Compost Science and Utilization 6 (3), 74-88]. Results indicated that the mixture of MC/CP performed well as a biofilter media and the ammonia removal efficiency was 100% for the filter depth of 500 mm.
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Affiliation(s)
- J H Hong
- Department of Bio-Industrial Machinery Engineering, Sunchon National University, Sunchon 540-742, South Korea.
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48
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Abstract
The food technology has brought countless benefits to today's food supply. Despite its many positive contributions, it has also brought unintended negative consequences. It is the time to mobilize the food technology to help the food supply more secure, safer and healthier, and here three possible approaches are foreseeable: First, we should continue to improve the conventional technologies. Many wholesome foods have been prepared and preserved using natural materials simply by fermentation. Second, we have to enhance the minimal processing as much as applicable. Third, new ingredients, intelligent packaging and functional foods should be explored to improve food supply and health. Today, consumer interest in the functional foods has been increased tremendously, and the future of food lies in the functional foods. However, the situations in the developing world are different from this. As food resource is limited in this region, food technology has to be emphasized to increase food supply. To help solve such complex problems, not only new technologies, but also conventional technologies have to be mobilized. Simultaneously, even higher technical capabilities have to be built up by applying new findings from the related disciplines to allow the food technology to play its vital role.
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Affiliation(s)
- T W Kwon
- Food Science Institute and School of Food & Life Science, Inje University, Gimhae, Korea 621-749.
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Yoo JI, Kim KH, Jang HN, Seo YC, Seok KS, Hong JH, Jang M. The development of PM emission factor for small incinerators and boilers. Environ Technol 2002; 23:1425-1433. [PMID: 12523513 DOI: 10.1080/09593332508618447] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This study is intended to develop the emission factors of particulate matter such as TPM (total particulate matter), PM-10 (particulate matter less than 10 micrometers in aerodynamic diameter), PM-2.5 (particulate matter less than 2.5 micrometers in aerodynamic diameters) and several types of inorganic matter from small-size incinerators (less than 250 kg hr(-1) capacity) and boilers (less than 5 ton hr(-1) capacity a s steam generation) for various compositions of wastes and fuels, respectively.The emission factors for particulate matter from boilers were similar to the US EPA data. However, the emission factors from small incinerators were higher than the emission factors developed in other countries because the emission characteristics were different, especially with respect to the combustor's capacity. Emission factors for heavy metals such as cadmium, manganese, chromium, magnesium, lead, zinc, and copper were also investigated. The emission factors in this study were higher than those in other studies. Particle size distribution of PM-10 and the ratio of submicron PM to TPM were observed and a mode (peak) of submicron size particles together with a higher concentration of them was found, which could be explained by the formation of fines from vaporized metals wastes.
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Affiliation(s)
- J I Yoo
- Department of Environmental Engineering, Yonsei University, Yonsei Institute of Environment Science and Technology, Wonju 220-710, Korea
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50
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Abstract
OBJECTIVE To determine the change of expression of Bcl2 in cisplatin-resistant bladder cancer cell lines and the reversibility of chemoresistance to cisplatin with antisense oligonucleotide against Bcl2, as higher expression of Bcl2 is associated with drug resistance in many different cancer cell lines. MATERIALS AND METHODS In the cisplatin-resistant bladder tumour cell lines T24R1 and T24R2, the expression of Bcl2 was determined by reverse transcription-polymerase chain reaction and Western blot assay, and antisense oligonucleotide targeting of the Bcl2 coding sequence was administered with lipofectin. RESULTS The expression of Bcl2 mRNA and protein was greater in T24R1 and T24R2 cells than in the parent T24 cells. Short-term exposure to cisplatin up-regulated Bcl2 mRNA and protein expression in parent T24 cells. Treatment with antisense oligonucleotide down-regulated Bcl2 protein expression and significantly enhanced the cytotoxicity of cisplatin. CONCLUSIONS Up-regulation of Bcl2 protein expression might be one of the mechanisms of cisplatin resistance in bladder cancer cells, and antisense Bcl2 oligonucleotide may be helpful in chemotherapy for bladder cancer by reversing cisplatin resistance.
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Affiliation(s)
- J H Hong
- Department of Urology, University of Ulsan College of Medicine, Korea
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