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Lee J, Song J, Jung G, Song SH, Hong SK. Prognosis after radical prostatectomy in men older than 75 years: long-term results from a single tertiary center. Prostate Int 2024; 12:15-19. [PMID: 38523903 PMCID: PMC10960082 DOI: 10.1016/j.prnil.2023.09.004] [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] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 09/20/2023] [Accepted: 09/25/2023] [Indexed: 03/26/2024] Open
Abstract
Background Despite longer lifespans, guidelines for prostate cancer treatment recommend surgery for those with over 10 years of life expectancy, potentially leaving older patients undertreated. This study examines the outcomes of radical prostatectomy (RP) in a large cohort of men older than 75 years. Materials and methods We retrospectively analyzed 636 patients from a pool of 4,500 RP cases at a single tertiary institution from 2004 to 2022. Patients younger than 75 years or with incomplete records were excluded. Baseline clinical variables, including PSA and biopsy grade group (GG), as well as postoperative pathology and oncological outcomes, were assessed. Achievement of continence based on no pads and ≤1 pad at last follow-up were evaluated. Results Mean age and PSA were 76.4 years and 15.3 ng/ml, respectively. At biopsy, GG1 and 2 were found in 18.1% and 31.5%, respectively, with 28.5% harboring GG4-5 tumors. After RP, 41.5% had GG upgrade compared to biopsy results, with 46.5% with ≥pT3 tumors. In a mean follow-up of 41.5 months, 82.3% were able to attain total continence of 0 pads, and 89.5% used ≤1 pads at the last follow-up. Overall and cancer-specific mortality was observed in 4.3% and 0.9%, respectively, and biochemical recurrence (BCR) occurred in 20.3% after a median of 154 months. At multivariate analysis, age was not a significant factor for BCR, whereas preoperative PSA, biopsy GG, margin positivity, and lymph node invasion were significant. Conclusion RP is feasible in men older than 75 years with decent oncological outcome, with absolute age insignificant within this age group. Risk of undertreatment should be acknowledged, and definite treatment must be considered.
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Affiliation(s)
- Jaewon Lee
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jungkeun Song
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Gyoohwan Jung
- Department of Urology, Hanyang University Seoul Hospital, Seoul, Korea
| | - Sang Hun Song
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sung Kyu Hong
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Urology, Seoul National University College of Medicine, Seoul, Korea
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Jung G, Ryu H, Lee JW, Jeong SJ, Margolis E, Grover N, Lee S. Validation of an algorithm for sound-based voided volume estimation. Sci Rep 2024; 14:138. [PMID: 38168131 PMCID: PMC10761909 DOI: 10.1038/s41598-023-50499-1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024] Open
Abstract
A voiding diary is commonly used in clinical practice to monitor urinary tract health. However, manual recording and use of a measuring cup can cause significant inaccuracy and inconvenience. Recently sound-based voided volume estimation algorithms such as proudP have shown potential to accurately measure the voided volumes of patients urination while overcoming these inconveniences. In order to validate the sound-based voided volume estimation algorithm, we chose bodyweight change after urination as a reference value. Total 508 subjects from the United States and Korea were enrolled. 584 data points that have matching bodyweights change data and urination sound data were collected, and fivefold cross validation was performed in order to evaluate the model on all data in the dataset. The mean voided volume estimated by the algorithm was 202.6 mL (SD: ± 114.8) while the mean bodyweight change after urination was 208.0 g (SD: ± 121.5), and there was a strong linear correlation with high statistical significance (Pearson's correlation coefficient = 0.92, p-value < 0.001). Two paired t-test showed the equivalence with bodyweight change data with 10 mL margin. Additionally, a Bland-Altman plot shows a mean difference of - 5.5 mL with LoA (- 98.0, 87.1). The results support high performance of the algorithm across the large population data from multi-site clinical trials.
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Grants
- 1711138269 Korea Medical Device Development Fund grant funded by the Korea government (the Ministry of Science and ICT, the Ministry of Trade, Industry and Energy, the Ministry of Health and Welfare, the Ministry of Food and Drug Safety)
- RS-2020-KD000141 Korea Medical Device Development Fund grant funded by the Korea government (the Ministry of Science and ICT, the Ministry of Trade, Industry and Energy, the Ministry of Health and Welfare, the Ministry of Food and Drug Safety)
- NTIS, RS-2020-KD000141 Korea Medical Device Development Fund grant funded by the Korea government (the Ministry of Science and ICT, the Ministry of Trade, Industry and Energy, the Ministry of Health and Welfare, the Ministry of Food and Drug Safety)
- No. NRF-2020R1F1A1072702 National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT)
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Affiliation(s)
- Gyoohwan Jung
- Department of Urology, Hanyang University College of Medicine, 222, Wangsimni-ro, Seongdong-gu, Seoul, Korea
| | - Hoyoung Ryu
- Department of Urology, Ewha Womans University College of Medicine, 52, Ewhayeodae-gil, Seodaemun-gu, Seoul, Korea
| | - Jeong Woo Lee
- Department of Urology, Kyung Hee University Medical Center, Kyung Hee University College of Medicine, 7-13, Kyungheedae-ro 6-gil, Dongdaemun-gu, Seoul, Korea
| | - Seong Jin Jeong
- Department of Urology, Seoul National University Bundang Hospital, 173-82, Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea, 13620
- Department of Urology, Seoul National University College of Medicine, 103 Daehakro, Seoul, 03080, Korea
| | - Eric Margolis
- Hackensack Meridian School of Medicine, 340, Kingland St., Nutley, NJ, 07110, USA
| | | | - Sangchul Lee
- Department of Urology, Seoul National University Bundang Hospital, 173-82, Gumi-ro, Bundang-gu, Seongnam-si, Gyeonggi-do, Korea, 13620.
- Department of Urology, Seoul National University College of Medicine, 103 Daehakro, Seoul, 03080, Korea.
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Jung G, Breiding PS, Schmitz-Rixen T, Hakimi M. [Pelvic vein thrombosis : Current treatment options and importance of recanalization procedures]. Chirurgie (Heidelb) 2024; 95:87-98. [PMID: 37792045 DOI: 10.1007/s00104-023-01964-0] [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] [Accepted: 08/09/2023] [Indexed: 10/05/2023]
Abstract
Venous thrombosis is a frequent disorder. A distinction is made between an acute phase of the disease and a chronic manifestation, the postthrombotic syndrome. In particular, proximal venous thrombosis/pelvic vein thrombosis can cause a life-threatening pulmonary embolism during the acute phase of the disease. The postthrombotic syndrome is characterized by the remodeling of the affected venous section, which is often caused by inflammation. Locally, the typical clinical finding is caused by scarred stricture of the vein with restricted drainage and peripheral venous hypertension. Acute thrombosis should be primarily treated by therapeutic anticoagulation and compression therapy of the affected extremity. The duration of these measures depends on clinical presentation, cause (provoked, unprovoked) and risk factors for venous thrombosis/recurrent thrombosis. Venous revascularization procedures are important both in the acute phase of the disease and in the treatment of postthrombotic syndrome. The recanalization treatment is mostly carried out as an endovascular or hybrid intervention and venous bypass procedures are reserved for special situations.
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Affiliation(s)
- G Jung
- Klinik für Gefässchirurgie, Luzerner Kantonsspital, Spitalstr., 6000, Luzern 16, Schweiz.
| | - P S Breiding
- Radiologie, Sektion interventionelle Radiologie, Luzerner Kantonsspital, Spitalstr., 6000, Luzern 16, Schweiz
| | - T Schmitz-Rixen
- Deutsche Gesellschaft für Chirurgie, Luisenstr. 58-58, 10117, Berlin, Deutschland
| | - M Hakimi
- Klinik für Gefässchirurgie, Luzerner Kantonsspital, Spitalstr., 6000, Luzern 16, Schweiz
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Arendt AM, Heubach F, Maier CP, Giardino S, Jung G, Kowalewski E, Rabsteyn A, Amorelli G, Seitz C, Schlegel P, Handgretinger R, Lang P. Targeting GD2 after allogeneic SCT: effector cell composition defines the optimal use of ch14.18 and the bispecific antibody construct NG-CU (GD2-CD3). Cancer Immunol Immunother 2023; 72:3813-3824. [PMID: 37742286 PMCID: PMC10576705 DOI: 10.1007/s00262-023-03536-x] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Accepted: 08/24/2023] [Indexed: 09/26/2023]
Abstract
We investigated whether T cell-recruiting bispecific anti-CD3/GD2 antibody NG-CU might be an alternative to therapeutic anti-GD2 monoclonal antibody (mAb) ch14.18, mediating complement-dependent cytotoxicity (CDC) and antibody-dependent cell-mediated cytotoxicity (ADCC) through natural killer (NK) cells for immunotherapy in high-risk/relapsed neuroblastoma after autologous/allogeneic stem cell transplantation (auto/alloSCT). Different antibody concentrations and effector-to-target ratios (E:T) were evaluated using xCELLigence RTCA system, peripheral blood mononuclear cells (PBMCs) (healthy donors and patients after alloSCT), and neuroblastoma cell lines (LS/LAN-1). Mean specific lysis of LS cells utilizing PBMCs from healthy donors and ch14.18 (1 µg/ml) was 40/66/75% after 12/24/48 h compared to 66/93/100% in the presence of NG-CU (100 ng/ml). NG-CU showed enhanced cytotoxicity compared to ch14.18, even at lower concentrations and E:T ratios, and completely eradicated LS cells after 72 h. To decipher the influence of effector cell subsets on lysis, different ratios of T and NK cells were tested. At a ratio of 1:1, ch14.18 was more effective than NG-CU. Using patient PBMCs taken at different time points posttransplant, significant lysis with both constructs was detectable depending on percentages and total numbers of T and NK cells; in the early posttransplant phase, NK cells were predominant and ch14.18 was superior, whereas later on, T cells represented the majority of immune cells and NG-CU was more effective. Our study highlights the importance of analyzing effector cell subsets in patients before initiating antibody-based therapy. Consequently, we propose an adjusted administration of both antibody constructs, considering the state of posttransplant immune recovery, to optimize anti-tumor activity.
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Affiliation(s)
- A-M Arendt
- Department of General Pediatrics, Oncology/Hematology, Children's University Hospital Tuebingen, Hoppe-Seyler-Str. 1, 72076, Tübingen, Germany.
| | - F Heubach
- Department of General Pediatrics, Oncology/Hematology, Children's University Hospital Tuebingen, Hoppe-Seyler-Str. 1, 72076, Tübingen, Germany
| | - C P Maier
- Department of General Pediatrics, Oncology/Hematology, Children's University Hospital Tuebingen, Hoppe-Seyler-Str. 1, 72076, Tübingen, Germany
- Department of Hematology/Oncology, Center for Internal Medicine, University Hospital, Tübingen, Germany
| | - S Giardino
- Hematopoietic Stem Cell Transplantation Unit, Department of Hematology and Oncology, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - G Jung
- Interfaculty Institute for Cell Biology, Department of Immunology, Eberhard Karls University Tuebingen, Tübingen, Germany
| | - E Kowalewski
- Department of General Pediatrics, Oncology/Hematology, Children's University Hospital Tuebingen, Hoppe-Seyler-Str. 1, 72076, Tübingen, Germany
| | - A Rabsteyn
- Department of General Pediatrics, Oncology/Hematology, Children's University Hospital Tuebingen, Hoppe-Seyler-Str. 1, 72076, Tübingen, Germany
| | - G Amorelli
- Department of General Pediatrics, Oncology/Hematology, Children's University Hospital Tuebingen, Hoppe-Seyler-Str. 1, 72076, Tübingen, Germany
| | - C Seitz
- Department of General Pediatrics, Oncology/Hematology, Children's University Hospital Tuebingen, Hoppe-Seyler-Str. 1, 72076, Tübingen, Germany
| | - P Schlegel
- Department of General Pediatrics, Oncology/Hematology, Children's University Hospital Tuebingen, Hoppe-Seyler-Str. 1, 72076, Tübingen, Germany
| | - R Handgretinger
- Department of General Pediatrics, Oncology/Hematology, Children's University Hospital Tuebingen, Hoppe-Seyler-Str. 1, 72076, Tübingen, Germany
| | - P Lang
- Department of General Pediatrics, Oncology/Hematology, Children's University Hospital Tuebingen, Hoppe-Seyler-Str. 1, 72076, Tübingen, Germany
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Jung G, Kim JK, Oh JJ, Lee S, Byun SS, Hong SK, Lee H. Partial gland ablation using high-intensity focused ultrasound versus robot-assisted radical prostatectomy: a propensity score-matched study. Prostate Int 2023; 11:134-138. [PMID: 37745903 PMCID: PMC10513903 DOI: 10.1016/j.prnil.2022.12.001] [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: 07/05/2022] [Revised: 09/10/2022] [Accepted: 12/02/2022] [Indexed: 12/23/2022] Open
Abstract
Background We compared the clinical outcomes of robot-assisted radical prostatectomy (RARP) and partial gland ablation (PGA) using high-intensity focused ultrasound (HIFU) in localized prostate cancer. Methods We analyzed 3,859 patients who had undergone RARP and PGA using HIFU. According to the propensity score for each treatment, 137 patients after PGA were matched to 3,722 patients after RARP at a 1:4 ratio using the nearest neighbor method. Results The matched cohort comprised 685 subjects (RARP, 548; PGA, 137), with a median follow-up period of 22 months. Treatment failures were identified in 13.9% and 9.1% of patients in the PGA and RARP groups, respectively, after a median follow-up of 36 months postoperatively. Kaplan-Meier analyses revealed significantly longer failure-free (P < 0.001) and salvage-free survival (P = 0.003) in the RARP group than in the PGA group. There was no significant difference in the postoperative urinary symptom score (P = 0.748), but the postoperative erectile function score was significantly higher in the PGA group (P < 0.001). The rate of urinary incontinence (any pad) was significantly lower in the PGA group than that in the RARP group (P < 0.001). Postoperative complications were more frequent in the PGA group (P = 0.003); however, there was no significant difference in high-grade complications (≥3) (P = 0.467). Conclusion PGA using HIFU showed statistically inferior oncological outcomes compared with RARP for failure-free survival and salvage-free survival. However, functional outcomes regarding postoperative incontinence and erectile dysfunction were more favorable in the PGA group.
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Affiliation(s)
- Gyoohwan Jung
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jung Kwon Kim
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jong Jin Oh
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sangchul Lee
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Seok-Soo Byun
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Medical Device Development, Seoul National University College of Medicine, Seoul, Korea
| | - Sung Kyu Hong
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Urology, Seoul National University College of Medicine, Seoul, Korea
| | - Hakmin Lee
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
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Jung G, Park S, Kim H, Lee J, Jeong CW. Comparative analysis of mortality and progression to end-stage renal disease between surgically induced and medical chronic kidney disease: A study using the National Health Insurance customized database. Investig Clin Urol 2023; 64:338-345. [PMID: 37417558 DOI: 10.4111/icu.20230095] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 04/05/2023] [Accepted: 04/06/2023] [Indexed: 07/08/2023] Open
Abstract
PURPOSE We aimed to compare the mortality rate and the risk for progression to end-stage renal disease (ESRD) and cardiovascular disease (CVD) between patients who underwent surgery for localized renal cell carcinoma (RCC) and those with chronic kidney disease (CKD) without surgery by investigating the National Health Insurance Service. MATERIALS AND METHODS The surgical group (CKD-S) included patients who underwent radical or partial nephrectomy for RCC from 2007 to 2009. Grades of surgical CKD were classified according to the estimated glomerular filtration rate (eGFR) measured at a health screening within 2 years after surgery. The nonsurgical group (CKD-M) was graded according to the eGFR in the 2009-2010 health screenings. We performed 1:5 propensity score matching for age, gender, diabetes, hypertension, Charlson comorbidity index, smoking, alcohol consumption, baseline eGFR, and body mass index. RESULTS A total of 8,698 patients (CKD-S, n=1,521; CKD-M, n=7,177) were analyzed. The CKD-M group was at higher risk for progression to ESRD (hazard ratio [HR] 1.90, 95% confidence interval [CI] 1.04-3.44, p=0.036) and CVD (HR 1.17, 95% CI 1.06-1.29, p=0.002) than the CKD-S group. In the group of patients with grade 3 disease or higher, the CKD-M group was at significantly higher risk for progression to ESRD (HR 2.21, 95% CI 1.47-3.31, p<0.001), CVD (HR 1.32, 95% CI 1.20-1.45, p<0.001), and overall mortality (HR 1.50, 95% CI 1.21-1.86, p<0.001). CONCLUSIONS The risk for progression to ESRD, CVD, or mortality in patients with CKD-S may be lower than in patients with CKD-M.
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Affiliation(s)
- Gyoohwan Jung
- Department of Urology, Hanyang University Seoul Hospital, Seoul, Korea
| | - Seokwoo Park
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hasung Kim
- Data Science Team, Hanmi Pharm. Co., Ltd, Seoul, Korea
| | - Jungkuk Lee
- Data Science Team, Hanmi Pharm. Co., Ltd, Seoul, Korea
| | - Chang Wook Jeong
- Department of Urology, Seoul National University Hospital, Seoul, Korea
- Department of Urology, Seoul National University College of Medicine, Seoul, Korea.
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Kim GH, Jung G, Suh J, Park J, Cho SY. A Newly Developed Hematuria Grading System May Predict the Status of Stone-Free and Acute Pyelonephritis of Minimally Invasive Renal Stone Surgery. J Clin Med 2023; 12:jcm12082820. [PMID: 37109157 PMCID: PMC10142515 DOI: 10.3390/jcm12082820] [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: 02/21/2023] [Revised: 04/06/2023] [Accepted: 04/07/2023] [Indexed: 04/29/2023] Open
Abstract
OBJECTIVES The aim of this study was to evaluate the level of hematuria and the presence of clots during retrograde intrarenal surgery (RIRS) and miniaturized percutaneous nephrolithotomy (mPCNL) to predict surgical outcomes. MATERIALS AND METHODS The data of patients who underwent RIRS and mPCNL were analyzed separately. A hematuria grading (HG) system was classified into five grades based on the presence of blood clots and any visible stones according to the irrigation settings. Inter-observer reliability of the grading system was assessed using intra-class correlation and Spearman's rho. RESULTS The HG system showed high agreement among examiners, with high intra-class reliability and a strong correlation between RIRS and mPCNL groups. The stone density of the Houns-field unit was the most important factor in determining the hematuria across the development and validation groups of RIRS and mPCNL patients. Multivariate logistic regression analysis showed that the HG system was a significant predictor for remnant stones in the PCNL group and the probability of acute pyelonephritis or sepsis in the RIRS group. The high hematuria group showed lower basketing difficulty with the basket with a blue marker instrument than with others. CONCLUSIONS The new HG system shows excellent inter-observer reliability and a correlation with a gradual increase in stone density and surgical difficulty.
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Affiliation(s)
- Gyeong Hun Kim
- Department of Urology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
| | - Gyoohwan Jung
- Department of Urology, Hanyang University Seoul Hospital, 222-1, Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
| | - Jungyo Suh
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Republic of Korea
| | - Juhyun Park
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Republic of Korea
| | - Sung Yong Cho
- Department of Urology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
- Department of Urology, Seoul National University Hospital, Seoul National University College of Medicine, 101 Daehak-ro, Jongno-gu, Seoul 03080, Republic of Korea
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Jung G, Chung D, So S, Park H, Cho S. Surgical parameters related to excessive intrarenal pressure during minimally-invasive percutaneous nephrolithotomy in the supine position: A prospective observational clinical study. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00831-x] [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: 02/12/2023]
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Kim H, Ye C, Jung G, Ryu H, Lee JW, Jeong SJ, Lee S. Validation of acoustic voided volume measure: a pilot prospective study. World J Urol 2023; 41:509-514. [PMID: 36550234 DOI: 10.1007/s00345-022-04231-9] [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: 07/11/2022] [Accepted: 11/20/2022] [Indexed: 12/24/2022] Open
Abstract
PURPOSE We evaluated the accuracy and reliability of a new smartphone-based acoustic voided volume (VV) measurement application compared to VV estimation based on the measurement of urine volume in a bladder by ultrasound bladder scan. PATIENTS AND METHODS A total of 53 subjects from 01/2021 to 09/2021 were prospectively enrolled. Bladder scan-based VV estimation is based on the difference in the volume of urine in a bladder measured before urination and volume measured after urination. The acoustic VV measurement is based on smartphone-based acoustic VV measurement mobile application. VV estimates for the same void were compared between two techniques. Urinary measures were obtained from 49 male subjects resulting in a total of 245 measurements for analysis. VV measures were compared using Pearson's correlation coefficient (PCC), evaluation of observed versus predicted VV measures using linear regression fit indices, and Bland-Altman method. RESULTS VV between the two techniques revealed strong correlation (PCC 0.811, p < 0.001). Means of the number of measurements per patient and inpatient days for measurements analyzed are 5 and 2.7, respectively. In 245 measurements, VV measured by bladder scan is 238.69 ± 122.32 mL, VV measured by mobile application is 254.69 ± 119.28 mL, and their difference of two measurements is 16 ± 74.29 mL. CONCLUSION Through the comparison with VV estimated by ultrasound bladder scan, which is a technology to measure the urine volume in a bladder, it was confirmed that the smartphone-based acoustic VV measurement application proudP® is accurate.
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Affiliation(s)
- Hwanik Kim
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Urology, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Changhee Ye
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Gyoohwan Jung
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Hoyoung Ryu
- Department of Urology, Ewha Womans University Medical Center, Seoul, Korea
| | - Jeong Woo Lee
- Department of Urology, Kyung Hee University Medical Center, Kyung Hee University College of Medicine, Seoul, Korea
| | - Seong Jin Jeong
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Urology, Seoul National University College of Medicine, Seoul, Korea
| | - Sangchul Lee
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea. .,Department of Urology, Seoul National University College of Medicine, Seoul, Korea.
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Jung G, Kim JK, Jeon SS, Chung JH, Kwak C, Jeong CW, Ahn H, Joung JY, Kwon TG, Park SW, Byun SS. Establishment of Prospective Registry of Active Surveillance for Prostate Cancer: The Korean Urological Oncology Society Database. World J Mens Health 2023; 41:110-118. [PMID: 35118841 PMCID: PMC9826918 DOI: 10.5534/wjmh.210163] [Citation(s) in RCA: 1] [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: 08/20/2021] [Revised: 10/25/2021] [Accepted: 10/31/2021] [Indexed: 01/21/2023] Open
Abstract
PURPOSE To establish a prospective registry for the active surveillance (AS) of prostate cancer (PC) using the Korean Urological Oncology Society (KUOS) database and to present interim analysis. MATERIALS AND METHODS The KUOS registry of AS for PC (KUOS-AS-PC) was organized in May 2019 and comprises multiple institutions nationwide. The eligibility criteria were as follows: patients with (1) pathologically proven PC; (2) pre-biopsy prostate-specific antigen (PSA) ≤20 ng/mL; (3) International Society of Urological Pathology (ISUP) grade 1 or 2 (no cribriform pattern 4); (4) clinical T stage ≤T2c; (5) positive core ratio ≤50%; and (6) maximal cancer involvement in the core ≤50%. Detailed longitudinal clinical information, including multi-parametric magnetic resonance imaging and disease-specific outcomes, was recorded. RESULTS From May 2019 to June 2021, 296 patients were enrolled, and 284 were analyzed. The mean±standard deviation (SD) age at enrollment was 68.7±8.2 years. The median follow-up period was 11.2 months (5.9-16.8 mo). Majority of patients had pre-biopsy PSA ≤10 ng/mL (91.2%), PSA density <0.2 ng/mL² (79.7%), ISUP grade group 1 (94.4%), single positive core (65.7%), maximal cancer involvement in the core ≤20% (78.1%), and clinical T stage of T1c or lower (72.9%). Fifty-two (18.3%) discontinued AS for various reasons. Interventions included radical prostatectomy (80.8%), transurethral prostatectomy (5.8%), primary androgen deprivation therapy (5.8%), radiation (5.8%), and focal therapy (1.9%). The mean±SD time to intervention was 8.9±5.2 months. The reasons for discontinuation included pathologic reclassification (59.6%), patient preference (25.0%), and radiologic reclassification (9.6%). Two (4.8%) patients with pathologic Gleason score upgraded to ISUP grade group 4, no biochemical recurrence. CONCLUSIONS The KUOS established a successful prospective database of PC patients undergoing AS in Korea, named the KUOS-AS-PC registry.
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Affiliation(s)
- Gyoohwan Jung
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Jung Kwon Kim
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Seong Soo Jeon
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jae Hoon Chung
- Department of Urology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Cheol Kwak
- Department of Urology, Seoul National University Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Chang Wook Jeong
- Department of Urology, Seoul National University Hospital, Seoul National University School of Medicine, Seoul, Korea
| | - Hanjong Ahn
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae Young Joung
- Department of Urology, Center for Prostate Cancer, National Cancer Center, Goyang, Korea
| | - Tae Gyun Kwon
- Department of Urology, Kyungpook National University Chilgok Hospital, Kyungpook National University School of Medicine, Daegu, Korea
| | - Sung Woo Park
- Department of Urology, Pusan National University Yangsan Hospital, Pusan National University School of Medicine, Yangsan, Korea
| | - Seok-Soo Byun
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea.,Department of Medical Device Development, Seoul National University College of Medicine, Seoul, Korea
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Kim JK, Jung G, Kwak C, Jeong CW, Kang SH, Hong SH, Kim YJ, Chung J, Hwang EC, Kwon TG, Byun SS. Optimal management of renal cell carcinoma in octogenarians: Retrospective analysis using updated Korean Renal Cell Carcinoma (KORCC) database. PLoS One 2023; 18:e0283483. [PMID: 36996119 PMCID: PMC10062612 DOI: 10.1371/journal.pone.0283483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 03/09/2023] [Indexed: 03/31/2023] Open
Abstract
BACKGROUND There is few of optimal management guideline in elderly patients with renal cell carcinoma (RCC). To compare the survival outcomes of octogenarian RCC group and younger RCC group after surgery using nationwide multi-institutional database. METHODS A total of 10,068 patients who underwent surgery for RCC were included in the current retrospective, multi-institutional study. A propensity score matching (PSM) analysis was conducted to control other confounding factors in analyzing survival outcomes of octogenarian and younger group RCCs. Kaplan-Meier curve analysis to calculate the survival estimates for cancer-specific survival (CSS) and overall survival (OS), and multivariate Cox-proportional hazard regression analyses to evaluate the significant variables associated with the survival outcomes were also performed. RESULTS Both groups were well-balanced in all baseline characteristics. In a total cohort, Kaplan-Meier survival analysis showed a significantly decreased 5-year and 8-year CSS and OS in the octogenarian group compared with the younger group. However, in a PSM cohort, no significant differences were evident between the two groups in terms of CSS (5-year, 87.3% vs. 87.0%; 8-year, 82.2% vs. 78.9%, respectively, log-rank test, p = 0.964). In addition, age ≥ 80 years (HR, 1.199; 95% CI, 0.497-2.896, p = 0.686) was not a significant prognostic factor of CSS in a PSM cohort. CONCLUSIONS The octogenarian RCC group after surgery had comparable survival outcomes compared with younger group after PSM analysis. For the life expectancy of octogenarian is getting longer, active treatment is considerable in patients with good performance status.
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Affiliation(s)
- Jung Kwon Kim
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Urology, Seoul National University College of Medicine, Seoul, Korea
| | - Gyoohwan Jung
- Department of Urology, Hanyang University Seoul Hospital, Seoul, Korea
| | - Cheol Kwak
- Department of Urology, Seoul National University College of Medicine, Seoul, Korea
- Department of Urology, Seoul National University Hospital, Seoul, Korea
| | - Chang Wook Jeong
- Department of Urology, Seoul National University College of Medicine, Seoul, Korea
- Department of Urology, Seoul National University Hospital, Seoul, Korea
| | - Seok Ho Kang
- Department of Urology, Korea University Anam Hospital, Seoul, Korea
| | - Sung-Hoo Hong
- Department of Urology, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yong-June Kim
- Department of Urology, Chungbuk National University Hospital, Cheongju, Korea
| | - Jinsoo Chung
- Department of Urology, Center for Prostate Cancer, National Cancer Center, Goyang, Korea
| | - Eu Chang Hwang
- Department of Urology, Chonnam National University Medical School, Gwangju, Korea
| | - Tae Gyun Kwon
- Department of Urology, Kyungpook National University Chilgok Hospital, Daegu, Korea
| | - Seok-Soo Byun
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
- Department of Medical Device Development, Seoul National University College of Medicine, Seoul, Korea
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Lee K, Jung G, Choi NY, Kim S, Jo JK. Association between Psychological Suffering and Suicidal Thinking in Patients with Urologic Cancer Using Real-World Data. J Clin Med 2022; 11:jcm11247336. [PMID: 36555952 PMCID: PMC9782206 DOI: 10.3390/jcm11247336] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/27/2022] [Accepted: 12/08/2022] [Indexed: 12/14/2022] Open
Abstract
Cancer is a leading cause of death in Korea, and depression and suicide are major psychiatric problems in cancer patients. This study aimed to explore the correlation between anxiety, depression, social support, cancer state, and suicidality among urologic cancer patients. Sixty patients with urologic cancer were admitted to a university hospital between October 2019 and February 2020. The patients were evaluated using the Patient Health Questionnaire-9, Generalized Anxiety Disorder 7-item scale, Suicidality module of the Mini International Neuropsychiatric Interview (MINI), and the Lubben Social Network scales (LSNS). To determine which psychological or demographic factors affected suicide risk, Fisher's exact test, Wilcoxon rank-sum test, regression, and logistic regression were conducted. It was found that the greater the depressive symptoms, the higher the suicidal risk (OR = 1.32, 95% CI = 1.08-1.61). Furthermore, anxiety symptoms and the duration of cancer after diagnosis significantly increased depressive symptoms (p = 0.032). Clinicians should be able to identify the risk factors for suicide in patients with cancer, one of which is depression. To assess the risk of suicide, we must evaluate not only depressive symptoms but also the related anxiety and duration of the disease. Prevention and intervention efforts are needed to improve depressive moods and anxiety after cancer diagnosis.
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Affiliation(s)
- Kounseok Lee
- Department of Psychiatry, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Gyoohwan Jung
- Department of Urology, Seoul National University Bundang Hospital, Seongnam 13620, Republic of Korea
| | - Na Yeon Choi
- Biostatistical Consulting and Research Laboratory, Medical Research Collaborating Center, Hanyang University, Seoul 04763, Republic of Korea
| | - Sunhae Kim
- Department of Psychiatry, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
| | - Jung Ki Jo
- Department of Urology, College of Medicine, Hanyang University, Seoul 04763, Republic of Korea
- Correspondence: ; Tel.: +82-2-2290-8599
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Kim JK, Song SH, Jung G, Song B, Hong SK. Possibilities and limitations of using low biomass samples for urologic disease and microbiome research. Prostate Int 2022; 10:169-180. [PMID: 36570648 PMCID: PMC9747588 DOI: 10.1016/j.prnil.2022.10.001] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/27/2022] [Accepted: 10/01/2022] [Indexed: 11/12/2022] Open
Abstract
With the dogma of sterile urine no longer held as truth, numerous studies have implicated distinct changes in microbial diversity and composition to diseased subgroups in both benign and malignant urological diseases, ranging from overactive bladder to bladder and prostate cancer. Further facilitated by novel and effective techniques of urine culture and sequencing, analysis of the genitourinary microbiome holds high potential to identify biomarkers for disease and prognosis. However, the low biomass of samples included in microbiome studies of the urinary tract challenge researchers to draw definitive conclusions, confounded by technical and procedural considerations that must be addressed. Lack of samples and adequate true negative controls can lead to overestimation of microbial influence with clinical relevance. As such, results from currently available studies and assessment of their limitations required a thorough understanding. The purpose of this narrative review was to summarize notable microbiome studies in the field of urology with a focus on significant findings and limitations of study design. Methodological considerations in future research are also discussed.
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Affiliation(s)
- Jung Kwon Kim
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea,Department of Urology, Seoul National University College of Medicine, Seoul, Korea
| | - Sang Hun Song
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Gyoohwan Jung
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Byeongdo Song
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sung Kyu Hong
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea,Department of Urology, Seoul National University College of Medicine, Seoul, Korea,Corresponding author. Department of Urology, Seoul National University Bundang Hospital, 300, Gumi-dong, Bundang-gu, Seongnam-si, Kyunggi-do, 463-707, Korea.
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Choi B, Lee K, Jung G. Single Port Robotic Hysterectomy after the Previous Robotic Radical Trachelectomy. J Minim Invasive Gynecol 2022. [DOI: 10.1016/j.jmig.2022.09.242] [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: 11/25/2022]
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Jung G, Kim JK, Kim H, Lee J, Hong SK. The association between prostatitis and risk of prostate cancer: a National Health Insurance Database study. World J Urol 2022; 40:2781-2787. [PMID: 36201020 DOI: 10.1007/s00345-022-04165-2] [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: 06/08/2022] [Accepted: 09/24/2022] [Indexed: 10/10/2022] Open
Abstract
PURPOSE Inflammation is thought to affect the development of prostate cancer (PCa). By retrospectively investigating the database of the National Health Insurance Service, this study attempted to perform a relevant analysis of patients with prostatitis and PCa. METHODS Participants were aged ≥ 50 years. Patients diagnosed with prostatitis between 2010 and 2013 and matched controls were followed up until 2019. We selected controls with matched propensity scores for age, diabetes, hypertension, and the Charlson comorbidity index. Multivariate Cox regression analysis was conducted to determine the hazard ratio (HR) and 95% confidence interval (CI) of the association between prostatitis and PCa. The HR for PCa according to the presence of prostatitis was classified as acute, chronic, or other prostatitis. RESULTS A total of 746,176 patients from each group were analyzed. The incidence of PCa was significantly higher in the group with prostatitis (1.8% vs 0.6%, p < 0.001). The HR for PCa was significantly higher in patients with prostatitis (HR 2.99; 95% CI 2.89-3.09, p < 0.001). The HR for PCa was significantly higher in acute prostatitis than in chronic prostatitis (3.82; 95% CI 3.58-4.08; p < 0.001; HR 2.77; 95% CI 2.67-2.87, p < 0.001). The incidence of all-cause death in patients diagnosed PCa was significantly lower in prostatitis group (HR 0.58, 95% CI 0.53-0.63, p < 0.001). CONCLUSION Prostatitis is associated with an increased incidence of PCa. Acute prostatitis is associated with higher risk of PCa than chronic prostatitis. Clinicians should inform patients with prostatitis that they may have an increased risk of diagnosing PCa, and follow-up is needed.
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Affiliation(s)
- Gyoohwan Jung
- Department of Urology, Seoul National University Bundang Hospital, 173-82, Gumi-Ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea
| | - Jung Kwon Kim
- Department of Urology, Seoul National University Bundang Hospital, 173-82, Gumi-Ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea
| | - Hasung Kim
- Data Science Team, Hanmi Pharm. Co., Ltd, Seoul, South Korea
| | - Jungkuk Lee
- Data Science Team, Hanmi Pharm. Co., Ltd, Seoul, South Korea
| | - Sung Kyu Hong
- Department of Urology, Seoul National University Bundang Hospital, 173-82, Gumi-Ro, Bundang-gu, Seongnam-si, Gyeonggi-do, 13620, South Korea. .,Department of Urology, Seoul National University College of Medicine, Seoul, South Korea.
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Jung G, Lee SM, So SW, Kim S, Kim SC, Kwon O, Song H, Choi MJ, Cho SY. Pattern Analysis of Laser Fiber Degradation According to the Laser Setting: In Vitro Study of the Double-Firing Phenomenon. J Korean Med Sci 2022; 37:e280. [PMID: 36193637 PMCID: PMC9530307 DOI: 10.3346/jkms.2022.37.e280] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 08/03/2022] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND It is essential to understand the mechanism of the various causes of laser fiber damage and an ideal method of reducing endoscope damage induced by laser emission in multiple sites. This study classified the different patterns of laser fiber degradation according to laser settings and analyzed the role of cavitation bubbles to find a desirable way of minimizing endoscope damage. METHODS A total of 118 laser fibers were analyzed after 1-,3-, and 5-min laser emission to artificial stones under the settings of 1 J-10 Hz, 1 J-20 Hz, 1 J-30 Hz, and 2 J-10 Hz. Every 3 cm from the fiber tip was marked and examined with a digital microscope and a high-speed camera. The images of the fibers and the movement of cavitation bubbles were taken with a distance of 1 to 5 mm from the gel. RESULTS Seven types of fiber damage (charring, limited and extensive peeled-off, bumpy, whitish plaque, crack, and break-off) coincided during laser emission. Damages rapidly increased with emission time > 3 minutes regardless of the laser settings. The damaged lengths covered 5 mm on average, and the fibers at 5-min emission were significantly shorter than others. The fiber durability of 1J-10Hz setting was better than other settings after 3-min laser emission. Backward movement of the cavitation bubbles was found at the 1-mm distance from the gel, and the damaged lengths were longer than the diameters of the cavitation bubbles because of their proximal movement. CONCLUSION The damage patterns of the laser fiber tips were classified into seven types. The heat damage around the surface of the laser fiber can be increased according to the high-energy or high-frequency laser setting, a short distance to the stone, a short distance from the tips of flexible ureteroscopes, no cutting laser fiber procedures, and the inappropriate use of irrigation fluid or laser fiber jacket.
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Affiliation(s)
- Gyoohwan Jung
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Seung Min Lee
- College of Medicine, Seoul National University, Seoul, Korea
| | - Sang Won So
- College of Medicine, Seoul National University, Seoul, Korea
| | - Sehwan Kim
- College of Medicine, Seoul National University, Seoul, Korea
| | - Seong Chan Kim
- Interdisciplinary Postgraduate Program in Biomedical Engineering, Jeju National University, Jeju, Korea
| | - Ohbin Kwon
- Interdisciplinary Postgraduate Program in Biomedical Engineering, Jeju National University, Jeju, Korea
| | - Hyunjae Song
- Department of Electronic Engineering, Sogang University, Seoul, Korea
| | - Min Joo Choi
- Interdisciplinary Postgraduate Program in Biomedical Engineering, Jeju National University, Jeju, Korea
- Department of Medicine, School of Medicine, Jeju National University, Jeju, Korea
| | - Sung Yong Cho
- College of Medicine, Seoul National University, Seoul, Korea
- Department of Urology, Seoul National University Hospital, Seoul, Korea.
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Kim H, Kim J, Ye C, Lee H, Jung G, Hong S, Byun SS, Jeong S. Mid-term results of ReMEEX sling system for female stress urinary incontinence with various indication and feasibility of re-adjustment. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00656-x] [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: 11/04/2022]
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18
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Park DH, Yoo S, Do MT, Yoon HS, Jung G, Suh J, Yuk HD, Ku JH, Kwak C, Kim HH, Jeong CW. Geriatric assessment using the G8 to predict postoperative complications in patients undergoing major uro-oncologic surgery: Comparison with the Charlson Comorbidity Index. J Geriatr Oncol 2022; 13:426-431. [PMID: 35123918 DOI: 10.1016/j.jgo.2022.01.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Revised: 01/14/2022] [Accepted: 01/20/2022] [Indexed: 01/23/2023]
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Kim H, Nam J, Jung G, Kim J, Hong S. Clinical implication of periprostatic lymph node invasion in the prostate cancer with robotic radical prostatectomy in Korean ethnicity. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00751-5] [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: 11/04/2022]
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Kho Y, Yoon HS, Park DH, Do MT, Jung G, Cho SY. Effectiveness of a newly-developed training module using 3D printing for the navigation during retrograde intrarenal surgery. Investig Clin Urol 2022; 63:554-562. [PMID: 36068001 PMCID: PMC9448668 DOI: 10.4111/icu.20220205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 06/06/2022] [Revised: 07/24/2022] [Accepted: 08/01/2022] [Indexed: 12/01/2022] Open
Abstract
Purpose This study aimed to evaluate the feasibility of the newly-developed three-dimensional (3D) printed training module for navigation during retrograde intrarenal surgery. Materials and Methods Two specialists provided orientation to all trainees. The 3D printing model consisted of eight calyces in each kidney. One navigation time started from the moment when the endoscope entered the ureter. After navigation was completed, the navigation time was recorded. The goal was to perform ten navigation times for each side, starting from the right or the left side at random. After the experiment, all trainees were asked to fill out a questionnaire. Results The average training period of all 17 trainees was 3.05±1.80 years. Eleven trainees (64.7%) had the experience of assisting surgery for <100 cases, and six trainees (35.3%) had the experience of assisting surgery for 100 to 500 cases. Nine trainees (52.9%) began training from the right, and eight trainees (47.1%) started from the left. The average navigation time of 308 trials was 153.4±92.6 seconds. The maximum and minimum navigation times were 354.3±177.2 seconds and 80.1±25.6 seconds. The mean navigation time of the first and the last trials of all trainees significantly decreased from 251.4±108.0 seconds to 93.9±33.2 seconds. The average reduction in navigation time was 201.3±133.3 seconds. Almost all trainees were satisfied with the training. Conclusions The newly-developed 3D printing navigation training module seems to be adequate to improve surgical skills of flexible ureteroscopy.
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Affiliation(s)
- Yongseok Kho
- Department of Urology, Seoul National University Hospital, Seoul, Korea
| | - Hyun Sik Yoon
- Department of Urology, Dongguk University Ilsan Hospital, Goyang, Korea
| | - Dae Hyoung Park
- Department of Urology, Inje University Sanggye Paik Hospital, Seoul, Korea
| | - Minh-Tung Do
- Department of Urology, Seoul National University Hospital, Seoul, Korea
- Department of Surgery, Hai Phong University of Medicine and Pharmacy, Hai Phong, Vietnam
| | - Gyoohwan Jung
- Department of Urology, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Sung Yong Cho
- Department of Urology, Seoul National University Hospital, Seoul, Korea
- Department of Urology, Seoul National University College of Medicine, Seoul, Korea
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Park D, Yoo S, Yoon H, Jung G, Suh J, Yuk H, Ku J, Kwak C, Kim H, Jeong C. Geriatric assessment using G8 in patients who underwent major uro-oncologic surgery to predict postoperative complication: Comparison with Charlson comorbidity index. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00583-2] [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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22
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Bockius N, Shea J, Jung G, Schmid F, Hanke M. Model reduction techniques for the computation of extended Markov parameterizations for generalized Langevin equations. J Phys Condens Matter 2021; 33:214003. [PMID: 33592585 DOI: 10.1088/1361-648x/abe6df] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
The generalized Langevin equation is a model for the motion of coarse-grained particles where dissipative forces are represented by a memory term. The numerical realization of such a model requires the implementation of a stochastic delay-differential equation and the estimation of a corresponding memory kernel. Here we develop a new approach for computing a data-driven Markov model for the motion of the particles, given equidistant samples of their velocity autocorrelation function. Our method bypasses the determination of the underlying memory kernel by representing it via up to about twenty auxiliary variables. The algorithm is based on a sophisticated variant of the Prony method for exponential interpolation and employs the positive real lemma from model reduction theory to extract the associated Markov model. We demonstrate the potential of this approach for the test case of anomalous diffusion, where data are given analytically, and then apply our method to velocity autocorrelation data of molecular dynamics simulations of a colloid in a Lennard-Jones fluid. In both cases, the velocity autocorrelation function and the memory kernel can be reproduced very accurately. Moreover, we show that the algorithm can also handle input data with large statistical noise. We anticipate that it will be a very useful tool in future studies that involve dynamic coarse-graining of complex soft matter systems.
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Affiliation(s)
- N Bockius
- Institut für Mathematik, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany
| | - J Shea
- Institut für Physik, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany
| | - G Jung
- Institut für Theoretische Physik, Universität Innsbruck, Technikerstraße 21A, A-6020 Innsbruck, Austria
| | - F Schmid
- Institut für Physik, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany
| | - M Hanke
- Institut für Mathematik, Johannes Gutenberg-Universität Mainz, 55099 Mainz, Germany
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Steffen M, Schmitz-Rixen T, Jung G, Böckler D, Grundmann RT. [The DIGG risk score : A risk predictive model of perioperative mortality after elective treatment of intact abdominal aortic aneurysms in the DIGG register]. Chirurg 2019; 90:913-920. [PMID: 31053898 DOI: 10.1007/s00104-019-0968-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 11/26/2022]
Abstract
OBJECTIVE The aim of the study was to develop a specific risk score for the aortic register of the German Institute for Vascular Health Care Research (DIGG) of the German Society for Vascular Surgery and Vascular Medicine (DGG) for the prediction of postoperative mortality in elective treatment of intact abdominal aortic aneurysms (iAAA). The score should also enable a risk-adjusted presentation of the register results in the near future. METHODS The method of binary logistic regression analysis was used to calculate the model. The data from 10,404 patients were included in the analysis, of whom 7870 (75.6%) were treated by endovascular (EVAR) and 2534 (24.4%) by open (OR) aortic repair. It was examined which factors have an independent influence on hospital mortality and the effect size was determined as a score. RESULTS For EVAR, the influencing factors with their effect sizes (score in brackets) were: age >85 years (2), female gender (2), juxtarenal AAA (5), maximum diameter >65 mm (2), diabetes mellitus (2), American Society of Anesthesiologists (ASA) score >3 (2), cardiac comorbidities (3) and renal insufficiency stage >3 (5). For OR the factors were: age >80 years (2), female gender (2), juxtarenal AAA (2), ASA score >3 (3), previous myocardial infarction (2), renal comorbidities (3) and previous stroke (2). The estimated hospital mortality was calculated for the individual case from the sum of the risk factors (scores). The accuracy of the model (correlation between observed and expected results) was determined using the receiver operating characteristic (ROC) curve. An area under the curve (AUC) of 0.817 (confidence interval 0.789-0.844) demonstrated an excellent discrimination. In a validation group of 3831 patients, the good agreement between observed and calculated results was confirmed. CONCLUSION The DIGG risk score can predict risk-adjusted hospital mortality after EVAR and OR of iAAA in the DIGG register. Improvements with respect to the prediction are desirable for OR and should be strived for by extending the model in the future.
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Affiliation(s)
- M Steffen
- Klinikum Saarbrücken gGmbH, Winterberg 1, 66119, Saarbrücken, Deutschland
| | - T Schmitz-Rixen
- Klinik für Gefäß- und Endovascularchirurgie, Universitäres Wundzentrum, Klinikum der Goethe-Universität, Frankfurt/M, Deutschland
| | - G Jung
- Klinik für Gefäß- und Endovascularchirurgie, Klinikum der Goethe-Universität, Theodor-Stern-Kai 7, 60590, Frankfurt/Main, Deutschland
| | - D Böckler
- Klinik für Gefäßchirurgie und Endovaskuläre Chirurgie, Universitätsklinikum Heidelberg, Heidelberg, Deutschland
| | - R T Grundmann
- Deutsches Institut für Gefäßmedizinische Gesundheitsforschung (DIGG), Deutsche Gesellschaft für Gefäßchirurgie und Gefäßmedizin, Berlin, Deutschland.
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Tao Y, Faivre L, Laprie A, Boisselier P, Ferron C, Jung G, Racadot S, Gery B, Even C, Breuskin I, Bourhis J, Janot F. OC-0272: Twice daily reirradiation with cetuximab vs once daily chemoRT after surgery in head and neck cancer. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)30582-6] [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: 10/14/2022]
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Reiter K, Polzer H, Krupka C, Maiser A, Vick B, Rothenberg-Thurley M, Metzeler KH, Dörfel D, Salih HR, Jung G, Nößner E, Jeremias I, Hiddemann W, Leonhardt H, Spiekermann K, Subklewe M, Greif PA. Tyrosine kinase inhibition increases the cell surface localization of FLT3-ITD and enhances FLT3-directed immunotherapy of acute myeloid leukemia. Leukemia 2018; 32:313-322. [PMID: 28895560 PMCID: PMC5808080 DOI: 10.1038/leu.2017.257] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Revised: 07/14/2017] [Accepted: 08/01/2017] [Indexed: 01/13/2023]
Abstract
The fms-related tyrosine kinase 3 (FLT3) receptor has been extensively studied over the past two decades with regard to oncogenic alterations that do not only serve as prognostic markers but also as therapeutic targets in acute myeloid leukemia (AML). Internal tandem duplications (ITDs) became of special interest in this setting as they are associated with unfavorable prognosis. Because of sequence-dependent protein conformational changes FLT3-ITD tends to autophosphorylate and displays a constitutive intracellular localization. Here, we analyzed the effect of tyrosine kinase inhibitors (TKIs) on the localization of the FLT3 receptor and its mutants. TKI treatment increased the surface expression through upregulation of FLT3 and glycosylation of FLT3-ITD and FLT3-D835Y mutants. In T cell-mediated cytotoxicity (TCMC) assays, using a bispecific FLT3 × CD3 antibody construct, the combination with TKI treatment increased TCMC in the FLT3-ITD-positive AML cell lines MOLM-13 and MV4-11, patient-derived xenograft cells and primary patient samples. Our findings provide the basis for rational combination of TKI and FLT3-directed immunotherapy with potential benefit for FLT3-ITD-positive AML patients.
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Affiliation(s)
- K Reiter
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - H Polzer
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - C Krupka
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- Department of Translational Cancer Immunology, Gene Center Munich, LMU Munich, Munich, Germany
| | - A Maiser
- Department of BioIogy II, LMU Munich, Munich, Germany
| | - B Vick
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
- Department of Gene Vectors, Helmholtz Zentrum München, German Research center for Enviromental Health, Munich, Germany
| | - M Rothenberg-Thurley
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - K H Metzeler
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - D Dörfel
- Department of Medical Oncology, Hematology, Immunology, Rheumatology and Pulmology, Eberhard Karls Universität Tübingen, University Hospital Tübingen, Tübingen, Germany
- Clinical Collaboration Unit Translational Immunology, German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), partner site Tübingen, Tübingen, Germany
| | - H R Salih
- German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Medical Oncology, Hematology, Immunology, Rheumatology and Pulmology, Eberhard Karls Universität Tübingen, University Hospital Tübingen, Tübingen, Germany
- Clinical Collaboration Unit Translational Immunology, German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), partner site Tübingen, Tübingen, Germany
| | - G Jung
- Department of Immunology, Eberhard Karls Universität Tübingen, Tübingen, Germany
| | - E Nößner
- Immunoanalytics-Tissue control of Immunocytes, Helmholtz Zentrum München, German Research Center for Environmental Health, Munich, Germany
| | - I Jeremias
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
- Department of Gene Vectors, Helmholtz Zentrum München, German Research center for Enviromental Health, Munich, Germany
- Department of Pediatrics, Dr von Hauner Children’s Hospital, LMU Munich, Munich, Germany
| | - W Hiddemann
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - H Leonhardt
- Department of BioIogy II, LMU Munich, Munich, Germany
| | - K Spiekermann
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - M Subklewe
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
- Department of Translational Cancer Immunology, Gene Center Munich, LMU Munich, Munich, Germany
| | - P A Greif
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK), partner site Munich, Munich, Germany
- German Cancer Research Center (DKFZ), Heidelberg, Germany
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Dolgin B, Lorite I, Kumar Y, Esquinazi P, Jung G, Straube B, Heluani SPD. Conductivity fluctuations in proton-implanted ZnO microwires. Nanotechnology 2016; 27:305702. [PMID: 27306486 DOI: 10.1088/0957-4484/27/30/305702] [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: 06/06/2023]
Abstract
Electric noise can be an important limitation for applications of conducting elements in the nanometer size range. The intrinsic electrical noise of prospective materials for opto-spintronics applications like ZnO has not yet been characterized. In this study, we have investigated the conductivity fluctuations in 10 nm thick current paths produced by proton implantation of ZnO microwires at room temperature. The voltage noise under a constant dc current bias in undoped, as well as in Li-doped microwires, is characterized by [Formula: see text] power spectra with [Formula: see text]. The noise intensity scales with the square of the bias current pointing to bias-independent resistivity fluctuations as a source of the observed noise. The normalized power spectral density appears inversely proportional to the number of carriers in the probed sample volume, in agreement with the phenomenological Hooge law. For the proton-implanted ZnO microwire and at 1 Hz we obtain a normalized power spectral density as low as [Formula: see text] Hz(-1).
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Affiliation(s)
- B Dolgin
- Department of Physics, Ben Gurion University of the Negev, POB 653, 84105 Beer Sheva, Israel
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Hirel PH, Parker F, Boiziau J, Jung G, Outerovitch D, Dugué A, Peltiers C, Giuliacci C, Boulay R, Lelièvre Y, Cambou B, Mayaux JF, Cartwright T. HIV-1 Aspartic Proteinase: High-Level Production and Automated Fluorometric Screening Assay of Inhibitors. ACTA ACUST UNITED AC 2016. [DOI: 10.1177/095632029000100103] [Citation(s) in RCA: 17] [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: 11/16/2022]
Abstract
The 99-amino-acid HIV-1 aspartic proteinase was expressed to high levels in Escherichia coli using a T7 expression system. About 50% of the insoluble material after sonication of the bacteria was composed of aggregated proteinase. Subsequent renaturation and purification yielded large quantities of a homogeneous enzyme able to cleave various heptapeptidic substrates in vitro with a Km around 2.5 mM. A fluorometric assay has been devised to allow automated screening of HIV proteinase inhibitors based on an analogous renin assay. We used the synthetic intramolecularly quenched fluorogenic substrate Suc-TLNFPIS-4MCA based on the heptapeptide TLNFPIS, which encompasses the proteinase/reverse transcriptase junction, coupled to the fluorophore 7-amino-4-methylcoumarin and blocked at the amino-terminus by a succinyl group. The enzyme cleaves the substrate between phenylalanine and proline, and conditions were optimized for liberation of 7AMC from the generated PIS-4MCA with aminopeptidase M as secondary enzyme. 7AMC was monitored with a microplate fluorescence scanner. The known aspartic proteinase inhibitor pepstatin A consistently gave Ki = 2 × 10−6M. Other synthetic and natural compounds are currently being tested.
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Affiliation(s)
- Ph.-H. Hirel
- Institut des Biotechnologies, Rhône-Poulenc, Santé, BP14, F94403 Vitry, France
| | - F. Parker
- Institut des Biotechnologies, Rhône-Poulenc, Santé, BP14, F94403 Vitry, France
| | - J. Boiziau
- Institut des Biotechnologies, Rhône-Poulenc, Santé, BP14, F94403 Vitry, France
| | - G. Jung
- Institut des Biotechnologies, Rhône-Poulenc, Santé, BP14, F94403 Vitry, France
| | - D. Outerovitch
- Institut des Biotechnologies, Rhône-Poulenc, Santé, BP14, F94403 Vitry, France
| | - A. Dugué
- Institut des Biotechnologies, Rhône-Poulenc, Santé, BP14, F94403 Vitry, France
| | - C. Peltiers
- Institut des Biotechnologies, Rhône-Poulenc, Santé, BP14, F94403 Vitry, France
| | - C. Giuliacci
- Institut des Biotechnologies, Rhône-Poulenc, Santé, BP14, F94403 Vitry, France
| | - R. Boulay
- Institut des Biotechnologies, Rhône-Poulenc, Santé, BP14, F94403 Vitry, France
| | - Y. Lelièvre
- Institut des Biotechnologies, Rhône-Poulenc, Santé, BP14, F94403 Vitry, France
| | - B. Cambou
- Institut des Biotechnologies, Rhône-Poulenc, Santé, BP14, F94403 Vitry, France
| | - J.-F. Mayaux
- Institut des Biotechnologies, Rhône-Poulenc, Santé, BP14, F94403 Vitry, France
| | - T. Cartwright
- Institut des Biotechnologies, Rhône-Poulenc, Santé, BP14, F94403 Vitry, France
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Jung G, Yoon MY, Park J, Kim JK, Jeong CW, Ku JH, Kim HH, Paick JS, Kwak C, Ryu H. MP02-16 LOW APPARENT DIFFUSION COEFFICIENT (ADC) VALUE IS ASSOCIATED WITH BIOCHEMICAL RECURRENCE IN HIGH RISK PROSTATE CANCER PATIENTS. J Urol 2016. [DOI: 10.1016/j.juro.2016.02.1888] [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: 11/29/2022]
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Turkovicova L, Smidak R, Jung G, Turna J, Lubec G, Aradska J. Proteomic analysis of the TerC interactome: Novel links to tellurite resistance and pathogenicity. J Proteomics 2016; 136:167-73. [PMID: 26778143 DOI: 10.1016/j.jprot.2016.01.003] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [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: 09/24/2015] [Revised: 12/02/2015] [Accepted: 01/04/2016] [Indexed: 12/18/2022]
Abstract
The tellurite resistance gene operon (ter) is widely spread among bacterial species, particularly pathogenic species. The ter operon has been implicated in tellurite resistance, phage inhibition, colicine resistance, and pathogenicity. The TerC protein represents one of the key proteins in tellurite resistance and shows no significant homology to any protein of known function. So far, there is no experimental evidence for TerC interaction partners. In this study, proteomic-based methods, including blue native electrophoresis and co-immunoprecipitation combined with LC-MS/MS, have been used to identify TerC interaction partners and thus providing indirect evidence for tentative functions of TerC in Escherichia coli. An interactome has been constructed and robust physical interaction of integral membrane protein TerC with TerB, DctA, PspA, HslU, and RplK has been shown. The TerC-TerB complex appears to act as a central unit that may link different functional modules with biochemical activities of C4-dicarboxylate transport, inner membrane stress response (phage shock protein regulatory complex), ATPase/chaperone activity, and proteosynthesis. In previous reports, it was hypothesized that a transmembrane unit formed by TerC protein may interact with the TerD family, but herein neither TerD nor TerE proteins were identified as TerC complex components. We propose that TerD/TerE participates in tellurite resistance through TerC-independent action.
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Affiliation(s)
- L Turkovicova
- Department of Pediatrics, Medical University of Vienna, Vienna, Austria; Department of Molecular Biology, Faculty of Natural Science, Comenius University, Bratislava, Slovakia
| | - R Smidak
- Department of Pediatrics, Medical University of Vienna, Vienna, Austria
| | - G Jung
- Department of Pediatrics, Medical University of Vienna, Vienna, Austria
| | - J Turna
- Department of Molecular Biology, Faculty of Natural Science, Comenius University, Bratislava, Slovakia
| | - G Lubec
- Department of Pharmaceutical Chemistry, University of Vienna, Vienna, Austria.
| | - J Aradska
- Department of Pediatrics, Medical University of Vienna, Vienna, Austria.
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Honda K, Kobayashi M, Okusaka T, Nakamori S, Shimahara M, Ueno T, Tsuchida A, Sata N, Ioka T, Yasunami Y, Masaru Y, Kosuge T, Jung G, Yamada T. 409 Plasma biomarker for detection of early stage pancreatic cancer and risk factors for pancreatic malignancy using antibodies against apolipoprotein-AII isoforms. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30243-x] [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: 11/25/2022]
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Cho MH, Jeong H, Kim YS, Kim JW, Jung G. 2-amino-N-(2,6-dichloropyridin-3-yl)acetamide derivatives as a novel class of HBV capsid assembly inhibitor. J Viral Hepat 2014; 21:843-52. [PMID: 24372792 DOI: 10.1111/jvh.12214] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2013] [Accepted: 10/08/2013] [Indexed: 12/24/2022]
Abstract
Capsid structure is crucial for the maturation and maintenance of the stable hepatitis B virion. Therefore, chemicals that inhibit capsid assembly might potentially act as potent antiviral compounds. However, only a few chemicals are known to block the capsid assembly process and further viral proliferation. In this study, we present a novel family of capsid assembly inhibitors that act against hepatitis B virus (HBV). Based on X-ray crystallographic data of the HBV core protein (Cp), we built dimer and hexamer structural models to be used in library searches. Several chemicals in the 2-amino-N-(2,6-dichloropyridin-3-yl)acetamide family were predicted to have high affinity for the groove structure in Cp. Using in vitro assembly and the HepG2.2.15 cell culture test, we verified that these chemicals demonstrated inhibitory effects on capsid assembly. Furthermore, we investigated the combinatorial effects of these assembly inhibitor chemicals with lamivudine and revealed that, in combination, they have synergistic inhibitory effects on decreasing viral concentration. We propose that these inhibitors could be utilized as an effective combination treatment against HBV infection.
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Affiliation(s)
- M H Cho
- Department of Biological Sciences, Seoul National University, Seoul, Korea
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Troidl K, Jung G, Troidl C, Schaper W, Schmitz-Rixen T. P616Improvement of collateral growth by ex vivo stimulated macrophages. Cardiovasc Res 2014. [DOI: 10.1093/cvr/cvu098.44] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Abstract
Notch1 and reactive oxygen species (ROS) modulate important pathways associated with tumor development and progression. Notably, Notch1 expression is upregulated in 41.8% of hepatocellular carcinoma (HCC) patients and ROS levels increases as HCC progresses from Grade I to Grade III. It has been established that Notch1 and ROS modulate Snail expression in malignant tumors; however, the mechanism regulating Snail protein expression is not yet known. In this study, we observed that Notch1 and ROS cooperatively increase the levels of Snail protein in Huh7 (hepatoma) cells. On its own, signaling through Notch1 increases transcription of Snail without changing protein levels. In contrast, the combined activation of the Notch1 and ROS-induced phosphoinositide 3-kinase/Akt (PI3K/Akt) signaling pathways resulted in the high expression of Snail protein. This increase in Snail expression was associated with increased Huh7 cells invasiveness. Furthermore, we observed that correlation between Snail and Notch1 expression was the strongest in advanced grade HCC tissue. In conclusion, Notch1 and ROS-induced PI3K/Akt signals cooperatively increase Snail expression and may induce malignancy in HCC.
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Affiliation(s)
- H S Kim
- Department of Biological Sciences, Seoul National University , Seoul , Republic of Korea
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Jung G, Wiehler J, Steipe B, Bräuchle C, Zumbusch A. Single-molecule microscopy of the green fluorescent protein using simultaneous two-color excitation. Chemphyschem 2014; 2:392-6. [PMID: 23686962 DOI: 10.1002/1439-7641(20010618)2:6<392::aid-cphc392>3.0.co;2-7] [Citation(s) in RCA: 21] [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] [Received: 12/08/2000] [Indexed: 11/05/2022]
Abstract
In vivo microscopy of the Green Fluorescent Protein (GFP), the most important label in cell biology, with single-molecule sensitivity is hampered by an insufficient signal-to-noise ratio. A significant improvement is obtained with a novel two-color excitation technique. The picture clearly shows the increased brightness of GFP in in vitro single-molecule assays and in live-cell microscopy under two-color illumination (upper cell) as compared to normal illumination (lower cell).
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Affiliation(s)
- G Jung
- Department Chemie, Lehrstuhl Physikalische Chemie I, Ludwig-Maximilians Universität München, München, Germany
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Dolgin B, Puzniak R, Mogilyansky D, Wisniewski A, Markovich V, Jung G. Magnetic dynamic properties of electron-doped La(0.23)Ca(0.77)MnO3 nanoparticles. J Phys Condens Matter 2013; 25:076004. [PMID: 23339833 DOI: 10.1088/0953-8984/25/7/076004] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Magnetic properties of basically antiferromagnetic La(0.23)Ca(0.77)MnO(3) particles with average sizes of 12 and 60 nm have been investigated in a wide range of magnetic fields and temperature. Particular attention has been paid to magnetization dynamics through measurements of the temperature dependence of ac-susceptibility at various frequencies, the temperature and field dependence of thermoremanent and isothermoremanent magnetization originating from nanoparticles shells, and the time decay of the remanent magnetization. Experimental results and their analysis reveal the major role in magnetic behaviour of investigated antiferromagnetic nanoparticles played by the glassy component, associated mainly with the formation of the collective state formed by ferromagnetic clusters in frustrated coordination at the surfaces of interacting antiferromagnetic nanoparticles. Magnetic behaviour of nanoparticles has been ascribed to a core-shell scenario. Magnetic transitions have been found to play an important role in determining the dynamic properties of the phase separated state of coexisting different magnetic phases.
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Affiliation(s)
- B Dolgin
- Department of Physics, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel
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Troidl C, Jung G, Troidl K, Hoffmann J, Mollmann H, Nef H, Schaper W, Hamm CW, Schmitz-Rixen T. The temporal and spatial distribution of macrophage subpopulations during arteriogenesis. Curr Vasc Pharmacol 2013; 11:5-12. [PMID: 23391417] [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] [Received: 08/03/2011] [Revised: 09/23/2011] [Accepted: 09/29/2011] [Indexed: 06/01/2023]
Abstract
Chronic arterial occlusion leads to growth of collaterals - a process termed arteriogenesis, in which macrophages play a prominent role in remodelling and growth. However, a detailed analysis which of distinct macrophage subpopulations involved in arteriogenesis has never been performed. In the present study the temporal and spatial distribution of macrophage subtypes during arteriogenesis in a rat model with chronically elevated fluid shear stress (FSS) is investigated. Local macrophage subpopulations were histologically immuno-phenotyped using CD68 (a ubiquitous macrophage marker) and CD163, a specific M2 macrophage marker. Without occlusion few M2-macrophages reside in the perivascular space. Early after occlusion (12h) the number of M2 macrophages increases strongly and M1 macrophages begin emerging into the collateral. After 3 days they appear in the perivascular space. Both macrophage subtypes increase until 28d after treatment, whereas M2 macrophages dominate at the site of collateral growth. The local distribution of the subpopulations changes during the arteriogenic process. Whereas M1 macrophages are detected directly adjacent to the media, M2 macrophages are present in the most outer perivascular region of the growing collateral vessel. Systemic alterations of blood leucocytes in mice after femoral artery ligature (FAL) were investigated by FACS analysis of serial blood samples. During collateral remodelling histological changes were not reflected in circulating monocytes in the peripheral blood. The activation state of macrophages in mice with FAL was modulated by injections of either dexamethasone or the interleukins IL10 or IL3/IL14. The arteriogenic response was assessed by hind limb perfusion with laser Doppler measurements after 3, 7 and 14d. Suppressing inflammatory monocyte subtypes (M1) with dexamethasone led to impaired perfusion recovery after FAL in mice, whereas IL10 or IL4/IL13 application significantly increased perfusion recovery. This investigation demonstrates that a forced shift towards M2 macrophages improves the arteriogenic response. The distinct early increase and spatial distribution of M2 macrophages support the idea that this subtype plays a predominant role during collateral remodelling.
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Affiliation(s)
- C Troidl
- Franz-Groedel-Institute of the Kerckhoff-Heart and Thorax Center, Benekstr. 2-8, 61231 Bad Nauheim, Germany.
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Troidl C, Jung G, Troidl K, Hoffmann J, Mollmann H, Nef H, Schaper W, Hamm C, Schmitz-Rixen T. The Temporal and Spatial Distribution of Macrophage Subpopulations During Arteriogenesis. Curr Vasc Pharmacol 2013. [DOI: 10.2174/157016113804547629] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Troidl C, Jung G, Troidl K, Hoffmann J, Mollmann H, Nef H, Schaper W, Hamm C, Schmitz-Rixen T. The Temporal and Spatial Distribution of Macrophage Subpopulations During Arteriogenesis. Curr Vasc Pharmacol 2012. [DOI: 10.2174/1570161111309010005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Cutuli B, Petit J, Fricker J, Jung G, Schumacher C, Velten M, Abecassis J. Adjuvant tamoxifen in breast-cancer-treatment in postmenopausal women - occurrence of thromboembolic complications. Oncol Rep 2012; 1:59-63. [PMID: 21607306 DOI: 10.3892/or.1.1.59] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Of 441 postmenopausal breast cancer patients who received adjuvant tamoxifen, 19 had thromboembolic accidents (4.3%). All were in remission when thrombosis occurred. One patient died of bilateral pulmonary embolism. In the other cases, thromboembolic disorders were found to be reversible after the withdrawal of tamoxifen and anticoagulant treatment. Some patients had a history of vascular disorders, and others required prolonged bed rest which may have contributed as an aggravating circumstance to thrombotic events. Our study suggests that thromboembolic risk factors as well as potential vascular disorders induced by aggravating conditions have to be carefully examined in postmenopausal patients treated by adjuvant tamoxifen therapy. This is especially true in women with lobular breast cancer and aged more than 60 years.
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Affiliation(s)
- B Cutuli
- CTR PAUL STRAUSS,DEPT MED,F-67085 STRASBOURG,FRANCE. CTR PAUL STRAUSS,DEPT BIOSTAT,F-67085 STRASBOURG,FRANCE
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Markovich V, Puzniak R, Skourski Y, Wisniewski A, Mogilyanski D, Jung G, Gorodetsky G. Magnetic behaviour of interacting antiferromagnetic nanoparticles. J Phys Condens Matter 2012; 24:266001. [PMID: 22653184 DOI: 10.1088/0953-8984/24/26/266001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Magnetic properties of interacting La(0.2)Ca(0.8)MnO(3) nanoparticles have been investigated. The field-induced transition from antiferromagnetic (AFM) to ferromagnetic (FM) state in the La(0.2)Ca(0.8)MnO(3) bulk has been observed at exceptionally high magnetic fields. For large particles, the field-induced transition widens while magnetization progressively decreases. In small particles the transition is almost fully suppressed. The thermoremanence and isothermoremanence curves constitute fingerprints of irreversible magnetization originating from nanoparticle shells. We have ascribed the magnetic behaviour of nanoparticles to a core-shell scenario with two main magnetic contributions; one attributed to the formation of a collective state formed by FM clusters in frustrated coordination at the surfaces of interacting AFM nanoparticles and the other associated with inner core behaviour as a two-dimensional diluted antiferromagnet.
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Affiliation(s)
- V Markovich
- Department of Physics, Ben-Gurion University of the Negev, 84105 Beer-Sheva, Israel.
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Markovich V, Jung G. Comment on "Size control of charge-orbital order in half-doped manganite La0:5Ca0:5MnO3. Phys Rev Lett 2012; 108:129701-129702. [PMID: 22540629 DOI: 10.1103/physrevlett.108.129701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2011] [Indexed: 05/31/2023]
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Hofmann M, Große-Hovest L, Nübling T, Pyż E, Bamberg ML, Aulwurm S, Bühring HJ, Schwartz K, Haen SP, Schilbach K, Rammensee HG, Salih HR, Jung G. Generation, selection and preclinical characterization of an Fc-optimized FLT3 antibody for the treatment of myeloid leukemia. Leukemia 2012; 26:1228-37. [PMID: 22289926 DOI: 10.1038/leu.2011.372] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The therapeutic efficacy of humanized or chimeric second-generation antitumor antibodies is clearly established, but often limited. In recent years, defined modifications of the glycosylation pattern or the amino-acid sequence of the human immunoglobulin G1 Fc part have resulted in the development of third-generation antibodies with improved capability to recruit Fc receptor-bearing effector cells. The first antibodies of this kind, currently evaluated in early clinical trials, are directed against lymphoma-associated antigens. Fc-engineered antibodies targeting myeloid leukemia are not yet available. We here report on the generation and preclinical characterization of an Fc-optimized antibody directed to the FMS-related tyrosine kinase 3 (FLT3), an antigen expressed on the leukemic blasts of all investigated patients with acute myeloid leukemia (AML). This antibody, termed 4G8SDIEM, mediated markedly enhanced cellular cytotoxicity against FLT3-expressing cell lines as well as blasts of AML patients. FLT3 expression levels on AML cells varied between 300 and 4600 molecules/cell and, in most cases, were substantially higher than those detected on normal hematopoietic precursor cells and dendritic cells (approximately 300 molecules/cell). Antibody-mediated cytotoxicity against these normal cells was not detectable. 4G8SDIEM has been produced in pharmaceutical quality in a university-owned production unit and is currently used for the treatment of leukemia patients.
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Affiliation(s)
- M Hofmann
- Department of Immunology, Eberhard-Karls University, Tübingen, Germany
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Welkos S, Cote CK, Hahn U, Shastak O, Jedermann J, Bozue J, Jung G, Ruchala P, Pratikhya P, Tang T, Lehrer RI, Beyer W. Humanized theta-defensins (retrocyclins) enhance macrophage performance and protect mice from experimental anthrax infections. Antimicrob Agents Chemother 2011; 55:4238-50. [PMID: 21768520 PMCID: PMC3165295 DOI: 10.1128/aac.00267-11] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2011] [Revised: 06/17/2011] [Accepted: 07/03/2011] [Indexed: 12/16/2022] Open
Abstract
Retrocyclins are humanized versions of the -defensin peptides expressed by the leukocytes of several nonhuman primates. Previous studies, performed in serum-free media, determined that retrocyclins 1 (RC1) and RC2 could prevent successful germination of Bacillus anthracis spores, kill vegetative B. anthracis cells, and inactivate anthrax lethal factor. We now report that retrocyclins are extensively bound by components of native mouse, human, and fetal calf sera, that heat-inactivated sera show greatly enhanced retrocyclin binding, and that native and (especially) heat-inactivated sera greatly reduce the direct activities of retrocyclins against spores and vegetative cells of B. anthracis. Nevertheless, we also found that retrocyclins protected mice challenged in vivo by subcutaneous, intraperitoneal, or intranasal instillation of B. anthracis spores. Retrocyclin 1 bound extensively to B. anthracis spores and enhanced their phagocytosis and killing by murine RAW264.7 cells. Based on the assumption that spore-bound RC1 enters phagosomes by "piggyback phagocytosis," model calculations showed that the intraphagosomal concentration of RC1 would greatly exceed its extracellular concentration. Murine alveolar macrophages took up fluorescently labeled retrocyclin, suggesting that macrophages may also acquire extracellular RC1 directly. Overall, these data demonstrate that retrocyclins are effective in vivo against experimental murine anthrax infections and suggest that enhanced macrophage function contributes to this property.
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Affiliation(s)
- S. Welkos
- Bacteriology Division, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, Maryland
| | - C. K. Cote
- Bacteriology Division, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, Maryland
| | - U. Hahn
- University of Hohenheim, Stuttgart, Germany
| | - O. Shastak
- University of Hohenheim, Stuttgart, Germany
| | | | - J. Bozue
- Bacteriology Division, U.S. Army Medical Research Institute of Infectious Diseases, Frederick, Maryland
| | - G. Jung
- David Geffen School of Medicine at UCLA, Los Angeles, California
| | - P. Ruchala
- David Geffen School of Medicine at UCLA, Los Angeles, California
| | - P. Pratikhya
- David Geffen School of Medicine at UCLA, Los Angeles, California
| | - T. Tang
- David Geffen School of Medicine at UCLA, Los Angeles, California
| | - R. I. Lehrer
- David Geffen School of Medicine at UCLA, Los Angeles, California
| | - W. Beyer
- University of Hohenheim, Stuttgart, Germany
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Mugnier J, Jung G. Survival of bacteria and fungi in relation to water activity and the solvent properties of water in biopolymer gels. Appl Environ Microbiol 2010; 50:108-14. [PMID: 16346829 PMCID: PMC238580 DOI: 10.1128/aem.50.1.108-114.1985] [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: 11/20/2022] Open
Abstract
Survival of bacteria (Rhizobium, Agrobacterium, and Arthrobacter spp.), fungal spores (Penicillium sp.), and yeasts (Saccharomyces sp.) was studied in relation to water activity (a(w)) and the presence of nutritive solutes. The cells were entrapped in polysaccharide gels, as is done to immobilize cells or enzymes, and then dehydrated. The number of living cells (10 g of dry polymer) remained constant for periods of storage of >3 years at 28 degrees C when the inocula were kept at an a(w) of <0.069. At a(w) values between 0.069 and 0.83 the number of survivors diminished more and more rapidly as the a(w) was raised. For a given a(w) and organism, there were large differences in survival rate as a function of the nutritive solutes used to culture the microorganisms. Low-molecular-weight compounds (with three or five carbon atoms) had a deleterious effect on survival, whereas compounds of higher molecular weight (C(6) to C(12)) had a protecting effect. Thus, the a(w) alone was not a sufficient explanation for the deterioration of the inocula. Survival seemed to be more directly related to some properties of the water in the biopolymer. New concepts such as the discontinuity of properties of water and the point of mobilization of solutes, already proposed by Duckworth and Kelly (J. Food Technol. 8:105-113, 1973) and Seow (J. Sci. Food Agric., 26:535-536, 1975), have been taken into consideration to explain the interactions of water with the biopolymer and their specific effects on the microorganisms.
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Affiliation(s)
- J Mugnier
- Laboratory of Soil Microbiology, Rhone Poulenc, 92160 Antony, France
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Lee S, Shin M, Kim E, Kim J, Moon J, Jung G, Choi G, Kwon C, Joh J, Lee S, Kim S. Mycophenolic Acid Trough Level Measurements and Clinical Outcomes in Kidney Transplantation Recipients on a Fixed Dose (1.5 g/d) of Mycophenolate Mofetil in Korea. Transplant Proc 2010; 42:793-6. [DOI: 10.1016/j.transproceed.2010.02.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Paltiel Y, Jung G, Aqua T, Mocatta D, Banin U, Naaman R. Collective effects in charge transfer within a hybrid organic-inorganic system. Phys Rev Lett 2010; 104:016804. [PMID: 20366381 DOI: 10.1103/physrevlett.104.016804] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2009] [Indexed: 05/29/2023]
Abstract
A collective electron transfer (ET) process was discovered by studying the current noise in a field effect transistor with light-sensitive gate formed by nanocrystals linked by organic molecules to its surface. Fluctuations in the ET through the organic linker are reflected in the fluctuations of the transistor conductivity. The current noise has an avalanche character. Critical exponents obtained from the noise power spectra, avalanche distributions, and the dependence of the average avalanche size on avalanche duration are consistent with each other. A plausible model is proposed for this phenomenon.
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Affiliation(s)
- Y Paltiel
- Applied Physics Department and the Center for Nano Science and Nanotechnology, The Hebrew University, Jerusalem 91904, Israel
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Jung G, Park S, Ye J. MP-01.03: The Long Term Results of Modified Plication of the Tunica Albuginea in the Congenital Penile Curvature. Urology 2009. [DOI: 10.1016/j.urology.2009.07.1078] [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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Jung G, Knight D, Moadel A, Desai K, Chaudhary I, Gajavelli S, Ghalib MH, Mani S, Goel S. Assessment of quality of life using FACT-G survey in a phase I trial in cancer patients. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e20709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e20709 Background: Quality of life (QoL) assessment in clinical trials has been gaining more attention. FACT-G surveys have been validated to assess QoL in clinical trials involving oncology patient (Cella DF et al, J Clin Oncol 11:570–579, 1993). However, there is paucity of evaluation of QoL in patients with advanced cancer participating in Phase I clinical trials. Methods: FACT-G surveys were conducted within the context of a Phase I trial to identify a safe dose and potential drug-drug interations of capecitabine and irinotecan combination (Goel, S et al, Invest New Drugs 25:237–245, 2007). The FACT-G survey consists of 28 questions in 5 sections, namely, physical well-being, social/family well-being, emotional well-being, relationship with doctor, and functional well-being). Patients were requested to complete the FACT-G surveys at baseline and every two cycles thereafter (each cycle of 3 weeks duration). Results: Forty-one of 47 patients with advanced solid tumors who participated in the clinical trial completed FACT-G surveys. Mean scores were calculated for each time point. The mean QoL scores at baseline and post cycle 2 were 53 and 58, respectively (p = 0.1). Post cycle 4, the mean QoL score was 62 [p = 0.01, (vs. baseline)]. Following cycle 4, the number of respondents decreased to the extent where we were unable to ascertain any further changes in the QoL scores. Conclusions: It is feasible to use FACT-G survey as a tool to assess QoL in patients participating in an oncology phase I clinical trial. Although the sample size of the patient population was not powered for any statistical significance, there was a trend toward improving QoL based on FACT-G survey scores. This suggests that phase I clinical trials may provide improvement of QoL for some patients. FACT-G is a useful tool in assessing QoL in oncology phase I trial study population. No significant financial relationships to disclose.
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Affiliation(s)
- G. Jung
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - D. Knight
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - A. Moadel
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - K. Desai
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - I. Chaudhary
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - S. Gajavelli
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - M. H. Ghalib
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - S. Mani
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - S. Goel
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
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