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Kim S, Kim Y, Yu SH, Lee SE, Park JH, Cho G, Choi C, Han K, Kim CH, Kang YC. Platelet-derived mitochondria transfer facilitates wound-closure by modulating ROS levels in dermal fibroblasts. Platelets 2023; 34:2151996. [PMID: 36529914 DOI: 10.1080/09537104.2022.2151996] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Platelets are known to improve the wound-repair capacity of mesenchymal stem cells (MSCs) by transferring mitochondria intercellularly. This study aimed to investigate whether direct transfer of mitochondria (pl-MT) isolated from platelets could enhance wound healing in vitro using a cell-based model. Wound repairs were assessed by 2D gap closure experiment in wound scratch assay using human dermal fibroblasts (hDFs). Results demonstrated that pl-MT were successfully internalized into hDFs. It increased cell proliferation and promoted the closure of wound gap. Importantly, pl-MT suppressed both intracellular and mitochondrial ROS production induced by hydrogen peroxide, cisplatin, and TGF-β in hDFs. Taken together, these results suggest that pl-MT transfer might be used as a potential therapeutic strategy for wound repair.
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Affiliation(s)
- Soomin Kim
- Paean Biotechnology Inc., Seoul, Republic of Korea
| | - Yujin Kim
- Paean Biotechnology Inc., Seoul, Republic of Korea
| | - Shin-Hye Yu
- Paean Biotechnology Inc., Seoul, Republic of Korea
| | - Seo-Eun Lee
- Paean Biotechnology Inc., Seoul, Republic of Korea
| | | | - Gayoung Cho
- Paean Biotechnology Inc., Seoul, Republic of Korea
| | - Chul Choi
- Q.O.Fill & Gyul Clinic, Seoul, Republic of Korea
| | - Kyuboem Han
- Paean Biotechnology Inc., Seoul, Republic of Korea
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Lee SE, Amin N, Mannent LP, Bachert C, Gross G, Cho SH, Praestgaard A, Siddiqui S, Nash S, Kamat S, Khan AH, Jacob Nara JA. The relationship of sinus opacification, olfaction and dupilumab efficacy in patients with CRSwNP. Rhinology 2023; 61:531-540. [PMID: 37453138 DOI: 10.4193/rhin22.220] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
BACKGROUND Loss of sense of smell is one of the most burdensome symptoms of chronic rhinosinusitis with nasal polyps (CRSwNP) but its relationship to sinus disease on imaging is unclear. Dupilumab improves sense of smell and radiographic severity of sinus disease in patients with CRSwNP. We investigated the relationship of sinus opacification severity and loci to olfactory impairment and dupilumab efficacy in patients with CRSwNP from the SINUS-24/SINUS-52 (NCT02912468/NCT02898454) studies. METHODS Sinus opacification was evaluated using the Lund-Mackay computed tomography (LMK-CT) score and sense of smell using patient-reported loss of smell (LoS) score, University of Pennsylvania Smell Identification Test (UPSIT) score and the 22-item Sino-Nasal Outcome Test (SNOT-22) smell/taste item. RESULTS At baseline, 95% of patients (688/724) had impaired sense of smell and opacification was extensive across all sinuses. Greater olfactory impairment was associated with greater opacification, especially in the ethmoid, sphenoid and frontal sinuses. At Week 24, reductions in LMK-CT total score and ethmoid and sphenoid sinus scores with dupilumab were weakly correlated with improvements in sense of smell assessed by LoS, UPSIT and SNOT-22 smell/taste item. More dupilumab than placebo patients achieved clinically meaningful improvement in LMK-CT total score at Week 24 and Week 52. CONCLUSION Radiographic disease severity on imaging was associated with smell outcomes in this cohort. Opacification of the ethmoid, sphenoid and frontal sinuses was associated with severe smell loss. These data suggest that dupilumab effects on smell may be partly mediated through reduced sinus inflammation.
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Affiliation(s)
- S E Lee
- Division of Otolaryngology - Head and Neck Surgery, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, USA
| | - N Amin
- Clinical Sciences Global Development, Regeneron Pharmaceuticals, Inc., Tarrytown, NY, USA
| | - L P Mannent
- Global Clinical Development, Sanofi, Chilly-Mazarin, France
| | - C Bachert
- Department of Otorhinolaryngology - Head and Neck Surgery, University Hospital of Münster, Münster, Germany, and International Airway Research Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China, and Upper Airways Research Laboratory and Department of Otorhinolaryngology, Ghent University, Ghent, Belgium
| | - G Gross
- Department of Internal Medicine, University of Texas Southwestern Medical School, Dallas, TX, USA
| | - S H Cho
- Division of Allergy-Immunology, Morsani College of Medicine, University of South Florida, Tampa, FL, USA
| | - A Praestgaard
- Department of Biostatistics, Sanofi, Cambridge, MA, USA
| | - S Siddiqui
- Medical Affairs, Regeneron Pharmaceuticals, Inc., Tarrytown, NY, USA
| | - S Nash
- Medical Affairs, Regeneron Pharmaceuticals, Inc., Tarrytown, NY, USA
| | - S Kamat
- Medical Affairs, Regeneron Pharmaceuticals, Inc., Tarrytown, NY, USA
| | - A H Khan
- Global Medical Affairs, Sanofi, Chilly-Mazarin, France
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Hellings PW, Fokkens WJ, Orlandi R, Adriaensen GF, Alobid I, Baroody FM, Bjermer L, Senior BA, Cervin A, Cohen NA, Constantinidis J, De Corso E, Desrosiers M, Diamant Z, Douglas RG, Gane S, Gevaert P, Han JK, Harvey RJ, Hopkins C, Kern RC, Landis BN, Lee JT, Lee SE, Leunig A, Lund VJ, Bernal-Sprekelsen M, Mullol J, Philpott C, Prokopakis E, Reitsma S, Ryan D, Salmi S, Scadding G, Schlosser RJ, Steinsvik A, Tomazic PV, Van Staeyen E, Van Zele T, Vanderveken O, Viskens AS, Conti D, Wagenmann M. The EUFOREA pocket guide for chronic rhinosinusitis. Rhinology 2023; 61:85-89. [PMID: 36507741 DOI: 10.4193/rhin22.344] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Chronic rhinosinusitis (CRS) is known to affect around 5 % of the total population, with major impact on the quality of life of those severely affected (1). Despite a substantial burden on individuals, society and health economies, CRS often remains underdiagnosed, under-estimated and under-treated (2). International guidelines like the European Position Paper on Rhinosinusitis and Nasal Polyps (EPOS) (3) and the International Consensus statement on Allergy and Rhinology: Rhinosinusitis 2021 (ICAR) (4) offer physicians insight into the recommended treatment options for CRS, with an overview of effective strategies and guidance of diagnosis and care throughout the disease journey of CRS.
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Affiliation(s)
- P W Hellings
- KU Leuven Department of Microbiology, Immunology and Transplantation, Laboratory of Allergy and Clinical Immunology Research Group, Leuven, Belgium; University Hospitals Leuven, Department of Otorhinolaryngology, Leuven, Belgium; University Hospital Ghent, Department of Otorhinolaryngology, Laboratory of Upper Airways Research, Ghent, Belgium; Department of otorhinolaryngology and head/neck surgery, Amsterdam University Medical Centres, location AMC, University of Amsterdam, Amsterdam, The Nethe
| | - W J Fokkens
- Department of otorhinolaryngology and head/neck surgery, Amsterdam University Medical Centres, location AMC, University of Amsterdam, Amsterdam, The Netherland
| | - R Orlandi
- Rhinology and Skull Base, Department of Otorhinolaryngology, Hospital Clinic, Universidad de Barcelona, Centro Medico Teknon, Barcelona, Spain
| | - G F Adriaensen
- Department of otorhinolaryngology and head/neck surgery, Amsterdam University Medical Centres, location AMC, University of Amsterdam, Amsterdam, The Netherland
| | - I Alobid
- Rhinology and Skull Base, Department of Otorhinolaryngology, Hospital Clinic, Universidad de Barcelona, Centro Medico Teknon, Barcelona, Spain
| | - F M Baroody
- The University of Chicago Medicine, Chicago, IL, United States
| | - L Bjermer
- Dept of Respiratory Medicine and Allergology, Skane University Hospital, Lund, Sweden
| | - B A Senior
- Division of Rhinology, Allergy, and Endoscopic Skull Base Surgery, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - A Cervin
- The university of Queensland Centra for Clinical Research, Herston, Australia; Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - N A Cohen
- Department of Otorhinolaryngology-Head and Neck Surgery, University of Pennsylvania, Philadelphia, PA, USA
| | - J Constantinidis
- 1st Department of ORL, Head and Neck Surgery, Aristotle University, AHEPA Hospital, Thessaloniki, Greece
| | - E De Corso
- Department of Otolaryngology Head and Neck Surgery, Fondazione Policlinico Universitario A. Gemelli IRCSS, Universita; Cattolica Sacro Cuore, Rome, Italy
| | - M Desrosiers
- Department of Otolaryngology-Head and Neck Surgery, Universita de Montreal, Montreal, Canada
| | - Z Diamant
- KU Leuven Department of Microbiology, Immunology and Transplantation, Laboratory of Allergy and Clinical Immunology Research Group, Leuven, Belgium; Dept of Respiratory Medicine and Allergology, Skane University Hospital, Lund, Sweden; Department Clinical Pharmacy and Pharmacology, University Groningen, University Medical Center Groningen, Groningen, the Netherlands
| | - R G Douglas
- Department of Surgery, The University of Auckland, New Zealand
| | - S Gane
- Royal National Ear, Nose and Throat and Eastman Dental Hospitals, London, United Kingdom
| | - P Gevaert
- University Hospital Ghent, Department of Otorhinolaryngology, Laboratory of Upper Airways Research, Ghent, Belgium
| | - J K Han
- Department of Otolaryngology and Head and Neck Surgery at Eastern Virginia Medical School, Norfolk, Virginia, USA
| | - R J Harvey
- Rhinology and Skull Base, Applied Medical Research Center, Department of Otolaryngology and Head and Neck Surgery at Eastern Virginia Medical School, Norfolk, Virginia, USA; Faculty of medicine and heath sciences, Macquarie University, Sydney, Australia
| | - C Hopkins
- Ear, Nose and Throat Department, Guys and St. Thomas Hospital, London, United Kingdom
| | - R C Kern
- Department of Otolaryngology, Head and Neck Surgery, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA; Division of Allergy-Immunology, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA
| | - B N Landis
- Hopitaux Universitaires de Geneve, Geneve, Geneve, Switzerland
| | - J T Lee
- Brigham and Women's Hospital, Harvard Medical School, Department of Surgery, Division of Otolaryngology-Head and Neck Surgery, Section of Rhinology and Skull Base Surgery, Massachusetts, USA
| | - S E Lee
- Department of Head and Neck Surgery, University of California Los Angeles David Geffen School of Medicine, Los Angeles, CA, USA
| | - A Leunig
- Rhinology Center, Munich and ENT-Clinic, Munich, Germany
| | - V J Lund
- Royal National Throat, Nose and Ear Hospital, UCLH, London, UK
| | | | - J Mullol
- Rhinology Unit and Smell Clinic, ENT Department, Hospital Clinic, IDIBAPS, Universitat de Barcelona, CIBERES. Barcelona, Catalonia, Spain
| | - C Philpott
- NIHR UCLH Biomedical research Centre, London, UK; Ear Institute, University College London, London, UK
| | - E Prokopakis
- Department of Otorhinolaryngology, University of Crete School of Medicine, Heraklion, Greece
| | - S Reitsma
- Department of otorhinolaryngology and head/neck surgery, Amsterdam University Medical Centres, location AMC, University of Amsterdam, Amsterdam, The Netherland
| | - D Ryan
- Usher institute, University of Edinburgh, Edinburgh, UK
| | - S Salmi
- Medicum, Haartman Institute, University of Helsinki, Helsinki, Finland; Skin and Allergy Hospital, Helsinki University Hospital, Helsinki, Finland
| | - G Scadding
- Royal National Ear, Nose and Throat and Eastman Dental Hospitals, London, United Kingdom
| | - R J Schlosser
- Department of Otolaryngology Head and Neck surgery, Medical University of South Carolina, Charleston, SC, USA
| | | | - P V Tomazic
- Department of Otorhinolaryngology, Medical University of Graz, Graz, Austria
| | - E Van Staeyen
- University Hospitals Leuven, Department of Otorhinolaryngology, Leuven, Belgium
| | - T Van Zele
- University Hospital Ghent, Department of Otorhinolaryngology, Laboratory of Upper Airways Research, Ghent, Belgium
| | - O Vanderveken
- Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Antwerp, Belgium; Department of ENT, Head and Neck Surgery, Antwerp University Hospital, Edegem, Antwerp, Belgium; Multidisciplinary Sleep Disorder Center, Antwerp University Hospital, Edegem, Antwerp, Belgium
| | - A-S Viskens
- KU Leuven Department of Microbiology, Immunology and Transplantation, Laboratory of Allergy and Clinical Immunology Research Group, Leuven, Belgium; Faculty of Medicine and Health Sciences, University of Antwerp, Wilrijk, Antwerp, Belgium
| | | | - M Wagenmann
- Department of Otorhinolaryngology, Universitatsklinikum Disseldorf, Dusseldorf, Germany
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Hopkins C, Han JK, Lund VJ, Bachert C, Fokkens WJ, Diamant Z, Mullol J, Sousa AR, Smith SG, Yang S, Mayer B, Yancey SW, Chan RH, Lee SE. Evaluating treatment response to mepolizumab in patients with severe CRSwNP. Rhinology 2023; 61:108-117. [PMID: 36716382 DOI: 10.4193/rhin22.200] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND The SYNAPSE study (NCT03085797) demonstrated that mepolizumab decreased nasal polyp (NP) size and nasal obstruction in patients with chronic rhinosinusitis with NP (CRSwNP). METHODS SYNAPSE, a randomized, double-blind study, included patients with recurrent, refractory, severe CRSwNP, eligible for repeated surgery despite receiving standard of care (SoC). Patients received 4-weekly mepolizumab 100 mg or placebo subcutaneously plus SoC for 52 weeks. This post hoc analysis further characterized treatment responses and association with patient characteristics. The proportion of patients meeting any and each of five response criteria indicating improvement in disease-specific quality of life, NP size, nasal obstruction, loss of smell, and overall symptoms at Weeks 24 and 52, were assessed in subgroups: 1) no surgery; 2) neither surgery nor systemic corticosteroids (SCS). RESULTS Of 407 patients in the intention-to-treat population, 381 and 343 patients had no sinus surgery by Weeks 24 and 52, respectively. More mepolizumab- versus placebo-treated patients without surgery by Weeks 24 and 52 met each response criteria. Of the mepolizumab-treated patients without surgery by Week 24, 109 (55%) responded across ≥ 3 criteria, increasing to 126 (67%) by Week 52. Similar response trends were seen for patients with neither surgery nor SCS by Weeks 24 and 52. At either timepoint, there were no major differences in baseline characteristics between mepolizumab-treated full- (5/5 categories) and non-responders (0/5 categories). CONCLUSIONS Most patients who completed SYNAPSE required neither surgery nor SCS use and in addition achieved a progressive and sustained clinical response to mepolizumab underscoring the therapeutic benefits of mepolizumab in severe CRSwNP.
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Affiliation(s)
- C Hopkins
- Department of ENT, Guy's Hospital and St Thomas' Hospital, King's College London, UK
| | - J K Han
- Department of Otolaryngology Head and Neck Surgery, Eastern Virginia Medical School, Norfolk, VA, USA
| | - V J Lund
- Royal National Throat, Nose and Ear Hospital, UCLH NHS Trust, London, UK
| | - C Bachert
- Upper Airways Research Laboratory, Faculty of Medicine, Ghent University, Ghent, Belgium
| | - W J Fokkens
- Department of Otolaryngology, Amsterdam University Medical Center, Location AMC, Amsterdam, Netherlands
| | - Z Diamant
- Department of Microbiology Immunology and Transplantation, KU Leuven, Catholic University of Leuven, Belgium.,Department of Respiratory Medicine and Allergology, Institute for Clinical Science, Skane University Hospital, Lund University, Lund, Sweden.,Department of Clinical Pharmacy and Pharmacololgy, University Medical Center Groningen, Groningen, the Netherlands
| | - J Mullol
- Department of Otorhinolaryngology, Hospital Clinic, IDIBAPS, Universitat de Barcelona, CIBERES, Barcelona, Catalonia, Spain
| | - A R Sousa
- Clinical Sciences, Respiratory, GSK, GSK House, Brentford, UK
| | - S G Smith
- Respiratory Therapeutic Area Unit, GSK, Research Triangle Park, NC, USA
| | - S Yang
- Value Evidence and Outcomes, GSK, Collegeville, PA, USA
| | - B Mayer
- Clinical Statistics, GSK, GSK House, Brentford, Middlesex, UK
| | - S W Yancey
- Respiratory Therapeutic Area Unit, GSK, Research Triangle Park, NC, USA
| | - R H Chan
- Clinical Sciences, Respiratory, GSK, GSK House, Brentford, UK
| | - S E Lee
- Division of Otolaryngology-Head and Neck Surgery, Brigham and Women's Hospital, Harvard Medical School, Boston, USA
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Park MJ, Lee SE, Yoon W, Park HJ, Kim SH, Oh SH, Lee DG, Pyeon DB, Kim EY, Park SP. Effect of supplementation of cryoprotectant solution with hydroxypropyl cellulose for vitrification of bovine oocytes. Cryo Letters 2023; 44:37-46. [PMID: 36629840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
BACKGROUND Successful cryopreservation of bovine oocytes is very important for research and commercial applications. However, the survival and development rate of vitrified-thawed (VT) oocytes are lower than those of non-vitrified-thawed (non-VT) oocytes. OBJECTIVE To investigate the effect of adding hydroxypropyl cellulose (HPC) to the vitrification solution for bovine oocytes. MATERIALS AND METHODS For vitrification, bovine metaphase II oocytes were pretreated with a solution containing 10% ethylene glycol supplemented with 0, 10, 50, or 100 ug/mL HPC for 5 min, exposed to a solution containing 30% ethylene glycol supplemented with 0, 10, 50, or 100 ug/mL HPC for 30 s, and then directly plunged into liquid nitrogen. RESULTS The survival rate of oocytes was significantly higher in the 50 HPC group than in the 0, 10, and 100 HPC groups. The reactive oxygen species level was lower in the non-VT and 50 HPC groups than in the other groups. The mRNA levels of proapoptotic genes (Bax) were lower in the non-VT, 0, and 50 HPC groups than in the other groups. The mRNA levels of antiapoptotic genes (BCl2) were higher in the non-VT than in the other groups. The development rates of embryos (day 8) obtained via parthenogenetic activation (PA) were determined in the non-VT, 0 HPC, and 50 HPC groups. The cleavage rate was significantly higher in the non-VT group. CONCLUSION Supplementation of vitrification solution with HPC improves the survival of VT bovine oocytes and the development capacity of embryos derived from these oocytes via PA. doi.org/10.54680/fr23110110212.
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Affiliation(s)
- M J Park
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - S E Lee
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - W Yoon
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - H J Park
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - S H Kim
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - S H Oh
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - D G Lee
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - D B Pyeon
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - E Y Kim
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243; Mirae Cell Bio Inc., Seoul 04795, Korea
| | - S P Park
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243; Mirae Cell Bio Inc., Seoul 04795, Korea.
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Lee SE, Choi YS, Park HJ, Do JH. Gastrointestinal: Ampullary tumor growing into ventral pancreatic duct in incomplete pancreas divisum. J Gastroenterol Hepatol 2022. [PMID: 36524451 DOI: 10.1111/jgh.16080] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/04/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Affiliation(s)
- S E Lee
- Department of Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - Y-S Choi
- Department of Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - H J Park
- Department of Radiology, Chung-Ang University College of Medicine, Seoul, Korea
| | - J H Do
- Division of Gastroenterology, Department of Internal Medicine, Chung-Ang University College of Medicine, Seoul, Korea
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Lee SE, Jeong SE, Hong JS, Im H, Hwang SY, Oh JK, Kim SE. Gold-Nanoparticle-Coated Magnetic Beads for ALP-Enzyme-Based Electrochemical Immunosensing in Human Plasma. Materials (Basel) 2022; 15:ma15196875. [PMID: 36234217 PMCID: PMC9573121 DOI: 10.3390/ma15196875] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2022] [Revised: 09/16/2022] [Accepted: 09/16/2022] [Indexed: 05/14/2023]
Abstract
A simple and sensitive AuNP-coated magnetic beads (AMB)-based electrochemical biosensor platform was fabricated for bioassay. In this study, AuNP-conjugated magnetic particles were successfully prepared using biotin-streptavidin conjugation. The morphology and structure of the nanocomplex were characterized by scanning electron microscopy (SEM) with energy-dispersive X-ray analysis (EDX) and UV-visible spectroscopy. Moreover, cyclic voltammetry (CV) was used to investigate the effect of AuNP-MB on alkaline phosphatase (ALP) for electrochemical signal enhancement. An ALP-based electrochemical (EC) immunoassay was performed on the developed AuNP-MB complex with indium tin oxide (ITO) electrodes. Subsequently, the concentration of capture antibodies was well-optimized on the AMB complex via biotin-avidin conjugation. Lastly, the developed AuNP-MB immunoassay platform was verified with extracellular vesicle (EV) detection via immune response by showing the existence of EGFR proteins on glioblastoma multiforme (GBM)-derived EVs (108 particle/mL) spiked in human plasma. Therefore, the signal-enhanced ALP-based EC biosensor on AuNP-MB was favorably utilized as an immunoassay platform, revealing the potential application of biosensors in immunoassays in biological environments.
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Affiliation(s)
- Seo-Eun Lee
- Human IT Convergence Research Center, Convergence System R&D Division, Korea Electronics Technology Institute (KETI), 25 Saenari-ro, Bundang-gu, Seongnam-si 13509, Korea
- Department of Polymer Science and Engineering, Dankook University, 152 Jukjeon-ro, Suji-gu, Yongin-si 16890, Korea
| | - Se-Eun Jeong
- Human IT Convergence Research Center, Convergence System R&D Division, Korea Electronics Technology Institute (KETI), 25 Saenari-ro, Bundang-gu, Seongnam-si 13509, Korea
- Department of Polymer Science and Engineering, Dankook University, 152 Jukjeon-ro, Suji-gu, Yongin-si 16890, Korea
| | - Jae-Sang Hong
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Hyungsoon Im
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Radiology, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Sei-Young Hwang
- Human IT Convergence Research Center, Convergence System R&D Division, Korea Electronics Technology Institute (KETI), 25 Saenari-ro, Bundang-gu, Seongnam-si 13509, Korea
| | - Jun Kyun Oh
- Department of Polymer Science and Engineering, Dankook University, 152 Jukjeon-ro, Suji-gu, Yongin-si 16890, Korea
| | - Seong-Eun Kim
- Human IT Convergence Research Center, Convergence System R&D Division, Korea Electronics Technology Institute (KETI), 25 Saenari-ro, Bundang-gu, Seongnam-si 13509, Korea
- Correspondence: ; Tel.: +82-31-789-7555
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Yu SH, Kim S, Kim Y, Lee SE, Park JH, Cho G, Ha JC, Jung H, Lim SM, Han K, Lee HK, Kang YC, Kim CH. Erratum to: Human umbilical cord mesenchymal stem cell-derived mitochondria (PN-101) attenuate LPS-induced inflammatory responses by inhibiting NFκB signaling pathway. BMB Rep 2022; 55:361. [PMID: 35892133 PMCID: PMC9340083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Indexed: 11/01/2022] Open
Abstract
[Erratum to: BMB Reports 2022; 55(3): 136-141, PMID: 34488927, PMCID: PMC8972135] The BMB Reports would like to correct in BMB Rep. 55(3):136-141, titled "Human umbilical cord mesenchymal stem cell-derived mitochondria (PN-101) attenuate LPS-induced inflammatory responses by inhibiting NFκB signaling pathway". This research was supported by NRF-2016R1A2B4007640 grant (to C-H Kim). Since grant number is incorrect, this information has now been corrected as follows: We would like to thank various Paean Biotechnology Inc. members who participated in the project. This work was supported by NRF-2018M3A9B5023055 grant (to C-H Kim). The authors apologize for any inconvenience or confusion that may be caused by this error. The ACKNOWLEDGEMENTS of Original PDF version have been corrected.
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Affiliation(s)
- Shin-Hye Yu
- Paean Biotechnology Inc., Seoul 04552, Korea
| | - Soomin Kim
- Paean Biotechnology Inc., Seoul 04552, Korea
| | - Yujin Kim
- Paean Biotechnology Inc., Seoul 04552, Korea
| | - Seo-Eun Lee
- Paean Biotechnology Inc., Seoul 04552, Korea
| | | | - Gayoung Cho
- Paean Biotechnology Inc., Seoul 04552, Korea
| | | | | | | | - Kyuboem Han
- Paean Biotechnology Inc., Seoul 04552, Korea
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Yu SH, Kim S, Kim Y, Lee SE, Park JH, Cho G, Ha JC, Jung H, Lim SM, Han K, Lee HK, Kang YC, Kim CH. Human umbilical cord mesenchymal stem cell-derived mitochondria (PN-101) attenuate LPS-induced inflammatory responses by inhibiting NFκB signaling pathway. BMB Rep 2022. [PMID: 34488927 PMCID: PMC8972135 DOI: 10.5483/bmbrep.2022.55.3.083] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [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] [Indexed: 11/20/2022] Open
Abstract
Inflammation is one of the body’s natural responses to injury and illness as part of the healing process. However, persistent inflammation can lead to chronic inflammatory diseases and multi-organ failure. Altered mitochondrial function has been implicated in several acute and chronic inflammatory diseases by inducing an abnormal inflammatory response. Therefore, treating inflammatory diseases by recovering mitochondrial function may be a potential therapeutic approach. Recently, mitochondrial transplantation has been proven to be beneficial in hyperinflammatory animal models. However, it is unclear how mitochondrial transplantation attenuates inflammatory responses induced by external stimuli. Here, we isolated mitochondria from umbilical cord-derived mesenchymal stem cells, referred as to PN-101. We found that PN-101 could signifi-cantly reduce LPS-induced mortality in mice. In addition, in phorbol 12-myristate 13-acetate (PMA)-treated THP-1 macrophages, PN-101 attenuated LPS-induced increase production of pro-inflammatory cytokines. Furthermore, the anti-inflammatory effect of PN-101 was mediated by blockade of phosphorylation, nuclear translocation, and trans-activity of NFκB. Taken together, our results demonstrate that PN-101 has therapeutic potential to attenuate pathological inflammatory responses.
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Affiliation(s)
- Shin-Hye Yu
- Paean Biotechnology Inc., Seoul 04552, Korea
| | - Soomin Kim
- Paean Biotechnology Inc., Seoul 04552, Korea
| | - Yujin Kim
- Paean Biotechnology Inc., Seoul 04552, Korea
| | - Seo-Eun Lee
- Paean Biotechnology Inc., Seoul 04552, Korea
| | | | - Gayoung Cho
- Paean Biotechnology Inc., Seoul 04552, Korea
| | | | | | | | - Kyuboem Han
- Paean Biotechnology Inc., Seoul 04552, Korea
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10
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Park MJ, Lee SE, Yoon W, Park HJ, Kim SH, Oh SH, Lee DG, Pyeon DB, Kim EY, Park SP. Effect of supplementation of cryoprotectant solution with hydroxypropyl cellulose for vitrification of bovine oocytes. Cryo Letters 2022; 44:37-46. [PMID: 36625874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Successful cryopreservation of bovine oocytes is very important for research and commercial applications. However, the survival and development rate of vitrified-thawed (VT) oocytes are lower than those of non-vitrified-thawed (non-VT) oocytes. OBJECTIVE To investigate the effect of adding hydroxypropyl cellulose (HPC) to the vitrification solution for bovine oocytes. MATERIALS AND METHODS For vitrification, bovine metaphase II oocytes were pretreated with a solution containing 10% ethylene glycol supplemented with 0, 10, 50, or 100 ug/mL HPC for 5 min, exposed to a solution containing 30% ethylene glycol supplemented with 0, 10, 50, or 100 ug/mL HPC for 30 s, and then directly plunged into liquid nitrogen. RESULTS The survival rate of oocytes was significantly higher in the 50 HPC group than in the 0, 10, and 100 HPC groups. The reactive oxygen species level was lower in the non-VT and 50 HPC groups than in the other groups. The mRNA levels of proapoptotic genes (Bax) were lower in the non-VT, 0, and 50 HPC groups than in the other groups. The mRNA levels of antiapoptotic genes (BCl2) were higher in the non-VT than in the other groups. The development rates of embryos (day 8) obtained via parthenogenetic activation (PA) were determined in the non-VT, 0 HPC, and 50 HPC groups. The cleavage rate was significantly higher in the non-VT group. CONCLUSION Supplementation of vitrification solution with HPC improves the survival of VT bovine oocytes and the development capacity of embryos derived from these oocytes via PA. doi.org/10.54680/fr23110110212.
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Affiliation(s)
- M J Park
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - S E Lee
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - W Yoon
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - H J Park
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - S H Kim
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - S H Oh
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - D G Lee
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - D B Pyeon
- Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243, Korea
| | - E Y Kim
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243; Mirae Cell Bio Inc., Seoul 04795, Korea
| | - S P Park
- Jeju National University Stem Cell Research Center, Seoul 63243; Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju 63243; Mirae Cell Bio Inc., Seoul 04795, Korea.
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11
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Desrosiers M, Mannent LP, Amin N, Canonica GW, Hellings PW, Gevaert P, Mullol J, Lee SE, Fujieda S, Han JK, Hopkins C, Fokkens W, Jankowski R, Cho SH, Mao X, Zhang M, Rice MS, Khan AH, Kamat S, Patel N, Graham NMH, Ruddy M, Bachert C. Dupilumab reduces systemic corticosteroid use and sinonasal surgery rate in CRSwNP. Rhinology 2021; 59:301-311. [PMID: 33847325 DOI: 10.4193/rhin20.415] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Chronic rhinosinusitis with nasal polyps (CRSwNP) is a type 2 inflammatory disease with a high symptom burden and poor quality of life. Treatment options include recurrent surgeries and/or frequent systemic corticosteroids (SCS). Dupilumab, a fully human monoclonal antibody, blocks the shared receptor component for interleukin-4 and interleukin-13, key drivers of type 2-mediated inflammation. We report results of pooled analyses from 2 randomised, double-blind, placebo-controlled phase 3 studies (SINUS 24 [NCT02912468]; SINUS-52 [NCT02898454]) to evaluate dupilumab effect versus placebo in adults with CRSwNP with/without SCS use and sinonasal surgery. METHODOLOGY SINUS-24 patients were randomised 1:1 to subcutaneous dupilumab 300 mg (n=143) or placebo (n=133) every 2 weeks (q2w) for 24 weeks. SINUS-52 patients were randomised 1:1:1 to 52 weeks of subcutaneous dupilumab 300 mg q2w (n=150), 24 weeks q2w followed by 28 weeks of dupilumab 300 mg every 4 weeks (n=145) or 52 weeks of placebo q2w (n=153). RESULTS Dupilumab reduced the number of patients undergoing sinonasal surgery (82.6%), the need for in-study SCS use (73.9%), and SCS courses (75.3%). Significant improvements were observed with dupilumab vs placebo regardless of prior sinonasal surgery or SCS use in nasal polyp, nasal congestion, Lund-MacKay, and Sinonasal Outcome Test (22-items) scores, and the University of Pennsylvania Smell Identification Test. CONCLUSIONS Dupilumab demonstrated significant improvements in disease signs and symptoms and reduced the need for sino-nasal surgery and SCS use versus placebo in patients with severe CRSwNP, regardless of SCS use in the previous 2 years, or prior sinonasal surgery.
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Affiliation(s)
- M Desrosiers
- Centre de recherche du Centre hospitalier de l’Universite de Montreal (CRCHUM), Montreal, QC, Canada
| | | | - N Amin
- Regeneron Pharmaceuticals, Inc. Tarrytown, NY, USA
| | - G W Canonica
- Regeneron Pharmaceuticals, Inc. Tarrytown, NY, USA
| | | | | | - J Mullol
- Hospital Clinic, IDIBAPS, Universitat de Barcelona, CIBERES, Barcelona, Catalonia, Spain
| | - S E Lee
- University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | | | - J K Han
- Eastern Virginia Medical School, Norfolk, VA, USA
| | - C Hopkins
- Guy's and St Thomas' Hospitals, London, UK
| | - W Fokkens
- Academic Medical Center, Amsterdam, Netherlands
| | - R Jankowski
- University Hospital of Nancy, University of Lorraine, Nancy, France
| | - S H Cho
- University of South Florida, Tampa, FL, USA
| | - X Mao
- Sanofi, Bridgewater, NJ, USA
| | - M Zhang
- Sanofi, Bridgewater, NJ, USA
| | | | | | - S Kamat
- Regeneron Pharmaceuticals, Inc. Tarrytown, NY, USA
| | - N Patel
- Sanofi, Bridgewater, NJ, USA
| | - N M H Graham
- Regeneron Pharmaceuticals, Inc. Tarrytown, NY, USA
| | - M Ruddy
- Regeneron Pharmaceuticals, Inc. Tarrytown, NY, USA
| | - C Bachert
- Ghent University, Ghent, Belgium; Karolinska Institutet, Stockholm, Sweden; Sun Yat-sen University, First Affiliated Hospital, Guangzhou, China
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12
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Lee SE, Andreini D, Budoff MJ, Cademartiri F, Hadamitzky M, Marques H, Leipsic JA, Stone PH, Samady H, Narula J, Berman DS, Shaw LJ, Bax JJ, Min JK, Chang HJ. P6165Sex differences in compositional plaque volume progression in patients with stable coronary artery disease: observations from a serial CCTA registry. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0771] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
It is unclear whether sex impacts the plaque volume (PV) progression in patients with stable coronary artery disease (CAD).
Purpose
To explore whether the total and compositional PV progression rate differ according to sex.
Methods
We performed a prospective multinational registry of consecutive patients who underwent serial CCTA at ≥2-year interval. Total and compositional PV at baseline and follow-up were quantitatively analysed and normalized using the analysed total vessel length. Multivariate linear regression models were constructed for each women and men.
Results
Of the 1,255 patients included (median CT interval 3.8 years), 543 were women and 712 were men. Women were older (62±9 years vs. 59±9 years, p<0.001) and had higher total cholesterol level (195±41mg/dL vs. 187±39mg/dL, p=0.002). Prevalence of hypertension, diabetes, and family history of CAD were not different (all p>0.05).
At baseline, men possessed greater total PV (131.5±230.5mm3 vs. 97.7±193.6mm3, p=0.005) and a higher prevalence of high-risk plaques (HRP) than women (31% vs. 20%, p<0.001). Annual total PV progression rate was greater in men, driven by the greater non-calcified PV progression (TABLE).
In multivariate analysis (TABLE), although total PV progression rate was not different, women were associated with greater calcified PV progression (β=2.83, p=0.004) but slower non-calcified PV progression (β=-3.39, p=0.008) and less development of HRP (β=-0.18, p=0.049) than men.
CCTA findings according to sex Univariate analysis Female Sex in Multivariable Analysis Women (n=543) Men (n=712) P β SE P Agatston CACS, /year 0.44±0.7 0.4±0.7 0.332 0.106 0.04 0.006 Total PVnormalized, mm3/year 14.7±23.4 17.8±26.2 0.026 -0.56 1.33 0.677 Calcified PVnormalized, mm3/year 10.5±21.5 10.0±19.1 0.670 2.83 0.98 0.004 Non-calcified PVnormalized, mm3/year 4.2±17.3 7.8±21.2 0.001 -3.39 1.28 0.008 Development of high-risk plaque*, n (%) 86 (15.8) 139 (19.5) 0.092 -0.18 0.09 0.049 In linear multivariate regression analysis adjusted with age, race, HTN, DM, family history, smoking, LDL, statin, anti-platelets, beta-blockers, and PV at baseline, women were associated with greater calcified PV progression and slower non-calcified PV progression. (High-risk plaque was defined as ≥2 of low-attenuation plaque, spotty calcification, and positive remodelling.)
Conclusion
In this large CCTA cohort, we found that the compositional PV progression differs according to sex. These findings, which are hypothesis generating, suggest that comprehensive plaque evaluation may contribute to further refine risk stratification according to sex.
Acknowledgement/Funding
This work was supported by the National Research Foundation of Korea funded by the Ministry of Science and ICT (Grant No. 2012027176).
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Affiliation(s)
- S E Lee
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - D Andreini
- Cardiology Center Monzino IRCCS, Milan, Italy
| | - M J Budoff
- University of California Los Angeles, Los Angeles, United States of America
| | | | | | | | | | - P H Stone
- Brigham and Womens Hospital, Boston, United States of America
| | - H Samady
- Emory University School of Medicine, Atlanta, United States of America
| | - J Narula
- Mount Sinai School of Medicine, New York, United States of America
| | - D S Berman
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - L J Shaw
- Weill Cornell Medical College, New York, United States of America
| | - J J Bax
- Leiden University Medical Center, Leiden, Netherlands (The)
| | - J K Min
- Weill Cornell Medical College, New York, United States of America
| | - H J Chang
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
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13
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Cho JY, Kim KH, Lee SE, Lee HY, Choi JO, Jeon ES, Kim MS, Kim JJ, Hwang KK, Chae SC, Kang SM, Choi DJ, Yoo BS, Cho MC, Oh BH. P3520Admission hyperglycemia is a predictor of mortality of acute heart failure: comparison between patients with and without diabetes mellitus. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0384] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Regardless of diabetes mellitus (DM), admission hyperglycemia is not uncommon in patients with acute heart failure (AHF). Although DM is a well-known predictor of mortality in AHF, the impacts of admission hyperglycemia on clinical outcomes in non-DM patients with AHF have been poorly studied. The aim of this study, therefore, was to compare the impact of admission hyperglycemia on long-term clinical outcomes in AHF patients with or without DM.
Methods
Among 5,625 AHF patients enrolled in a nationwide registry, a total of 5,541 patients were enrolled and divided into 2 groups; DM group (n=2,125, 70.4±11.4 years) vs. non-DM group (n=3,416, 67.3±16.0 years). Each group were further divided into 2 groups according to the presence of admission hyperglycemia (admission serum glucose level >200mg/dl); admission hyperglycemia (n=248) and no hyperglycemia (n=3,168) in non-DM; admission hyperglycemia (n=799) and no hyperglycemia (n=1,326) in DM. All-cause death and hospitalization due to HF (HHF) during 1-year follow-up were compared.
Results
Death was developed in 1,220 patients (22.2%) including 269 inhospital deaths (4.9%) during 1-year of follow-up. Death rate were significantly higher in DM than in non-DM group (24.8% vs 20.5%, p<0.001), however there was no difference in inhospital death (5.1% vs 4.7%, p=0.534). Both inhospital death (7.6% vs. 4.2%, p<0.001) and 1-year death (26.2% vs. 21.3%, p=0.001) were more frequent in AHF patients with hyperglycemia. On Kaplan-Meier survival curve analysis, however, admission hyperglycemia was associated with significantly higher death (p<0.001 by log-rank test) and rehospitalization (p=0.006 by log-rank test) in non-DM group, but not in DM group. In non-DM group, admission hyperglycemia was an independent predictor of 1-year mortality (HR 1.46, 95% CI 1.10–1.93, p=0.009).
Conclusion
DM was a significant predictor of long-term mortality in patients with AHF. Admission hyperglycemia was associated with both higher inhospital and 1-year mortality. The present study also demonstrated that admission hyperglycemia is an independent predictor of mortality in non-DM patients with AHF, but not in DM patients. In addition to the presence of DM, admission hyperglycemia would be a useful marker in the risk stratification of AHF, especially in non-DM patients.
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Affiliation(s)
- J Y Cho
- Chonnam National University Hospital, Cardiology, Gwangju, Korea (Republic of)
| | - K H Kim
- Chonnam National University Hospital, Cardiology, Gwangju, Korea (Republic of)
| | - S E Lee
- Chonnam National University Hospital, Cardiology, Gwangju, Korea (Republic of)
| | - H Y Lee
- Seoul National University Hospital, Seoul, Korea (Republic of)
| | - J O Choi
- Samsung Medical Center, Seoul, Korea (Republic of)
| | - E S Jeon
- Samsung Medical Center, Seoul, Korea (Republic of)
| | - M S Kim
- Chonnam National University Hospital, Cardiology, Gwangju, Korea (Republic of)
| | - J J Kim
- Chonnam National University Hospital, Cardiology, Gwangju, Korea (Republic of)
| | - K K Hwang
- Chungbuk National University Hospital, Cheongju, Korea (Republic of)
| | - S C Chae
- Chungbuk National University Hospital, Cheongju, Korea (Republic of)
| | - S M Kang
- Chonnam National University Hospital, Cardiology, Gwangju, Korea (Republic of)
| | - D J Choi
- Chonnam National University Hospital, Cardiology, Gwangju, Korea (Republic of)
| | - B S Yoo
- Chonnam National University Hospital, Cardiology, Gwangju, Korea (Republic of)
| | - M C Cho
- Chungbuk National University Hospital, Cheongju, Korea (Republic of)
| | - B H Oh
- Seoul National University Hospital, Seoul, Korea (Republic of)
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14
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Lee SE, Pontone G, Gottlieb I, Hadamitzky M, Leipsic JA, Raff G, Stone PH, Samady H, Virmani R, Berman DS, Shaw LJ, Narula J, Bax JJ, Min JK, Chang HJ. P6162Difference in progression to obstructive lesions according to the presence of high-risk plaque features. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0768] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
It is still debatable whether the so-called high-risk plaque (HRP) simply represents a certain phase during the natural history of coronary atherosclerotic plaques or the disease progression would differ according to the presence of HRP.
Purpose
We determined whether the pattern of non-obstructive lesion progression into obstructive lesions would differ according to the presence of HRP.
Methods
Patients with non-obstructive coronary artery disease, defined as % diameter stenosis (%DS) ≥50%, were enrolled from a prospective, multinational registry of consecutive patients who underwent serial coronary computed tomography angiography at an inter-scan interval of ≥2 years. HRP was defined as lesions with ≥2 of positive remodelling, spotty calcification, and low-attenuation plaque. The total and compositional percent atheroma volume (PAV) at baseline and annualized PAV change were compared between non-HRP and HRP lesions.
Results
A total of 1,115 non-obstructive lesions were identified from 327 patients (61.1±8.9 years old, 66.0% male). There were 690 non-HRP and 425 HRP lesions. HRP lesions possessed greater PAV and %DS at baseline compared to non-HRP lesions. However, the annualized total and non-calcified PAV change were greater in non-HRP lesions than in HRP lesions. On multivariate analysis, addition of baseline PAV and %DS to clinical risk factors improved the predictive power of the model (Table). When clinical risk factors, PAV, %DS, and HRP were all adjusted on Model 3, only baseline PAV and %DS independently predicted the development of obstructive lesions (hazard ratio (HR) 1.046 [95% confidence interval (CI): 1.026–1.066] and HR 1.087 [95% CI: 1.055–1.119], respectively, all p<0.001), while HRP did not (p>0.05).
Comparison of C-statistics of per-lesion analysis to predict progression to obstructive lesion C-statistics (95% CI) P Model 1: Baseline PAV 0.880 (0.879–0.884) – Model 2: Model 1 + baseline %DS 0.938 (0.937–0.939) vs. Model 1: <0.001 Model 3: Model 2 + HRP 0.935 (0.934–0.937) vs. Model 2: 0.004 Adjusted for age, male sex, hypertension, diabetes mellitus, hyperlipidemia, family history of coronary artery disease, smoking, body mass index, and statin use.
Conclusion
The pattern of individual coronary atherosclerotic plaque progression differed according to the presence of HRP. Baseline PAV was the most important predictor for lesions developing into obstructive lesions rather than the presence of HRP features at baseline.
Acknowledgement/Funding
This work was supported by the National Research Foundation of Korea funded by the Ministry of Science and ICT (Grant No. 2012027176).
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Affiliation(s)
- S E Lee
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
| | - G Pontone
- Cardiology Center Monzino IRCCS, Milan, Italy
| | - I Gottlieb
- National Institute of Cardiology, Rio de Janeiro, Brazil
| | | | | | - G Raff
- William Beaumont Hospital, Royal Oak, United States of America
| | - P H Stone
- Brigham and Womens Hospital, Boston, United States of America
| | - H Samady
- Emory University School of Medicine, Atlanta, United States of America
| | - R Virmani
- CVPath Institute, Gaithersburg, United States of America
| | - D S Berman
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - L J Shaw
- Weill Cornell Medical College, New York, United States of America
| | - J Narula
- Mount Sinai School of Medicine, New York, United States of America
| | - J J Bax
- Leiden University Medical Center, Leiden, Netherlands (The)
| | - J K Min
- Weill Cornell Medical College, New York, United States of America
| | - H J Chang
- Yonsei University College of Medicine, Seoul, Korea (Republic of)
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15
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Van Den Hoogen IJ, Lin FY, Van Rosendael AR, Gianni U, Al Hussein Alawamlh O, Lee SE, Berman DS, Shaw LJ, Bax JJ, Min JK, Chang HJ. P868Temporal remodeling of coronary arteries during progression of atherosclerosis with serial coronary CT angiography using 3D metrics: results from the PARADIGM study. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0465] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Aim
To determine compensatory enlargement and luminal reduction of coronary arteries during the progression of atherosclerosis with serial coronary computed tomography angiography (CCTA) by using volumetric measurements. To date, the impact of coronary plaque progression on temporal remodeling, as opposed to the static remodeling, has only been studied with invasive imaging modalities and primarily two-dimensional areas rather than three-dimensional volumes.
Methods
In total, 1,245 patients with suspected coronary artery disease (CAD) at 13 sites (61±9 years, 39% women) underwent serial CCTA with interscan interval of ≥2 years. The primary objective was to assess volumetric temporal remodeling, defined as the linear association between the change in coronary plaque, lumen and vessel volume at follow-up CCTA on a per-segment level. Temporal remodeling was determined in strata of low and high baseline plaque burden as well as different coronary segments at baseline. Linear regression analysis and Pearson's correlation coefficients were calculated to assess associations.
Results
Amongst 1,245 patients with 19,920 segments, the median interscan interval was 3.3 (IQR 2.6–4.8) years. For each 1 mm3 increase in plaque volume, the increase in vessel volume was 0.72 mm3 and the decrease in lumen volume was 0.28 mm3 (Figure 1, both p<0.001). Volumetric temporal remodeling was similar in low versus high PAV [0.70 mm3 vs 0.73 mm3 (p for interaction=0.491)] and left-main arteries versus all other segments [0.78 mm3 vs. 0.72 mm3 (p for interaction=0.336)], but not in proximal versus distal segments at baseline [0.75 mm3 vs. 0.61 mm3 (p for interaction=0.020)].
Figure 1. Volumetric temporal remodeling
Conclusion
In general, coronary plaque grows approximately 70% outward and 30% into the coronary lumen during the progression of atherosclerosis. Volumetric temporal remodeling is not limited by baseline plaque burden, but is potentially dependent on its location within the coronary artery tree.
Acknowledgement/Funding
NRF of Korea (Grant No. 2012027176); Dalio Institute of Cardiovascular Imaging and Michael J. Wolk Foundation
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Affiliation(s)
| | - F Y Lin
- Weill Cornell Medical College, New York, United States of America
| | | | - U Gianni
- Weill Cornell Medical College, New York, United States of America
| | | | - S E Lee
- Severance Hospital, Cardiology, Seoul, Korea (Republic of)
| | - D S Berman
- Cedars-Sinai Medical Center, Imaging and Medicine, Los Angeles, United States of America
| | - L J Shaw
- Weill Cornell Medical College, New York, United States of America
| | - J J Bax
- Leiden University Medical Center, Cardiology, Leiden, Netherlands (The)
| | - J K Min
- Weill Cornell Medical College, New York, United States of America
| | - H J Chang
- Severance Hospital, Cardiology, Seoul, Korea (Republic of)
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16
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Chung E, Lee SE, Abraham T, Saad NN, Gad A. Evaluation of vancomycin target trough attainment with published dosing regimens in the neonatal intensive care unit population. J Neonatal Perinatal Med 2019; 12:21-27. [PMID: 30149480 DOI: 10.3233/npm-182] [Citation(s) in RCA: 5] [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] [Indexed: 01/19/2023]
Abstract
BACKGROUND Study aims to evaluate whether vancomycin dosing from published dosing algorithms correlate with the attainment of target troughs of 10 to 20 mg/L. METHODS NICU patients who received minimum three doses of vancomycin and had a trough level met inclusion criteria. Dosing information was retrospectively evaluated to determine which published dosing regimen was followed. Dosing algorithms used were matched to NeoFax/Harriet Lane, renal-function directed dosing, and weight-directed dosing, in which the latter two can be found in Pediatric and Neonatal Lexi-Drugs. Primary outcome was percentage of troughs within therapeutic (10 to 20 mg/L) and subtherapeutic (less than 10 mg/L) levels. RESULTS Of 97 troughs evaluated, NeoFax/Harriet Lane accounted for 86.6%, renal-function directed accounted for 5.1%, and weight-directed dosing accounted for 18.5% of dosing algorithms. NeoFax/Harriet Lane, renal-function directed, and weight-directed dosing attained therapeutic levels between 10 to 20 mg/L at a rate of 60.7%, 60%, and 50% of the time, respectively. With respect to initiation of therapy, a higher dose of 15 mg/kg versus 10 mg/kg attained therapeutic levels (p < 0.001; OR 11.22; 95% CI, 3.96 to 31.81), while a serum creatinine value below 0.5 mg/dL attained subtherapeutic levels (p = 0.028; OR 0.068; 95% CI, 0.006 to 0.74). CONCLUSIONS NeoFax, Harriet Lane, and renal-directed dosing from Pediatric and Neonatal Lexi-Drugs achieved target troughs within the 10 to 20 mg/L range more often than weight-directed dosing from Pediatric and Neonatal Lexi-Drugs. Initiating therapy at a higher dose and patient serum creatinine value above 0.5 mg/dL were factors significantly associated with a 10 to 20 mg/L range.
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Affiliation(s)
- E Chung
- Department of Pharmacy and Department of Pediatrics, NewYork-Presbyterian Brooklyn Methodist Hospital, NY, USA
| | - S E Lee
- Department of Pharmacy and Department of Pediatrics, NewYork-Presbyterian Brooklyn Methodist Hospital, NY, USA
| | - T Abraham
- Department of Pharmacy and Department of Pediatrics, NewYork-Presbyterian Brooklyn Methodist Hospital, NY, USA
| | - N N Saad
- Department of Pharmacy and Department of Pediatrics, NewYork-Presbyterian Brooklyn Methodist Hospital, NY, USA
| | - A Gad
- Department of Pharmacy and Department of Pediatrics, NewYork-Presbyterian Brooklyn Methodist Hospital, NY, USA
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Kwon S, Yoon DS, Bae IE, Choi WJ, Choi IS, Lee SE, Moon JI, Sung NS, Park SM. Abstract P4-08-22: Impact of application of AJCC 8th edition on survival rate of the breast cancer. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p4-08-22] [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: 11/16/2022]
Abstract
Abstract
Background
The AJCC 8 edition has changed much in comparison with the 7 edition. In addition to TNM stage, biologic marker (ER, PR, HER2), Histologic grade and multigene assays (oncotype Dx.) should be considered for staging. and it has been applied since January 1, 2018.
patients were recategorized and analyzed in order to know if this more complex classification helps to predict the real prognosis of the patients,
Method
We review patients who were diagnosed and treated as breast cancer at Konyang Universty Hospital. we studied retrospectively 582 patients who were followed up and were able to review.
Stage was classified according to AJCC 7th edition and AJCC 8th edition. survival rate of each stage were analyzed in both editions.
Result
Mean follow up period was 68.6 months. Total 582 patients were included. There was no change in the stage in 257 patients. In 195 patients, the stage was elevated and in 130 patients, the stage was changed down. When classified as AJCC 7th edition, the 5year-survival rate was 95.9% in stage I, 97.9% in stage II, 93.1% in stage III and 89.9% in stage IV. The survival rate of patients in stage I was lower than that of stage II. However, when the AJCC 8th edition was applied, the 5- year survival rate was 97.9% in stage I, 96.9% in stage II, 92.2% in stage III, and 89.9% in stage IV. In 8th edition, the patients in lower stage has higher survival rate.
Conclusion
The prediction of survival rate by stage was more accurate and the difference in survival rate of each stages was more clearly distinguished when The AJCC 8th edition was applied than AJCC 7th edition. AJCC 8th edition was reliable and useful for prediction of prognosis of breast cancer patient.
Citation Format: Kwon S, Yoon DS, Bae IE, Choi WJ, Choi IS, Lee SE, Moon JI, Sung NS, Park SM. Impact of application of AJCC 8th edition on survival rate of the breast cancer [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P4-08-22.
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Affiliation(s)
- S Kwon
- Konyang University Hospital, Daejeon, Korea
| | - DS Yoon
- Konyang University Hospital, Daejeon, Korea
| | - IE Bae
- Konyang University Hospital, Daejeon, Korea
| | - WJ Choi
- Konyang University Hospital, Daejeon, Korea
| | - IS Choi
- Konyang University Hospital, Daejeon, Korea
| | - SE Lee
- Konyang University Hospital, Daejeon, Korea
| | - JI Moon
- Konyang University Hospital, Daejeon, Korea
| | - NS Sung
- Konyang University Hospital, Daejeon, Korea
| | - SM Park
- Konyang University Hospital, Daejeon, Korea
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Goud KY, Kailasa SK, Kumar V, Tsang YF, Lee SE, Gobi KV, Kim KH. Progress on nanostructured electrochemical sensors and their recognition elements for detection of mycotoxins: A review. Biosens Bioelectron 2018; 121:205-222. [PMID: 30219721 DOI: 10.1016/j.bios.2018.08.029] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [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: 06/21/2018] [Revised: 08/11/2018] [Accepted: 08/13/2018] [Indexed: 12/31/2022]
Abstract
Nanomaterial-embedded sensors have been developed and applied to monitor various targets. Mycotoxins are fungal secondary metabolites that can exert carcinogenic, mutagenic, teratogenic, immunotoxic, and estrogenic effects on humans and animals. Consequently, the need for the proper regulation on foodstuff and feed materials has been recognized from times long past. This review provides an overview of recent developments in electrochemical sensors and biosensors employed for the detection of mycotoxins. Basic aspects of the toxicity of mycotoxins and the implications of their detection are comprehensively discussed. Furthermore, the development of different molecular recognition elements and nanomaterials required for the detection of mycotoxins (such as portable biosensing systems for point-of-care analysis) is described. The current capabilities, limitations, and future challenges in mycotoxin detection and analysis are also addressed.
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Affiliation(s)
- K Yugender Goud
- Department of Civil and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea; Department of Chemistry, National Institute of Technology Warangal, Telangana 506004, India
| | - Suresh Kumar Kailasa
- Department of Applied Chemistry, S. V. National Institute of Technology, Surat 395007, Gujarat, India.
| | - Vanish Kumar
- Department of Applied Sciences, U.I.E.T., Panjab University, Chandigarh 160014, India
| | - Yiu Fai Tsang
- Department of Science and Environmental Studies, The Education University of Hong Kong, Tai Po, New Territories, Hong Kong, China
| | - S E Lee
- School of Applied Biosciences, Kyungpook National University, Daegu 41566, Republic of Korea
| | | | - Ki-Hyun Kim
- Department of Civil and Environmental Engineering, Hanyang University, Seoul 04763, Republic of Korea.
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Kwiecinski J, Dey D, Lee SE, Otaki Y, Doris MK, Eisenberg E, Yun M, Cho A, Jansen MA, Dweck MR, Slomka PJ, Newby DE, Chang HJ, Berman DS. P6207Pericoronary adipose tissue density and low attenuation plaque are associated with 18F-sodium fluoride coronary uptake in vulnerable plaque patients. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6207] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- J Kwiecinski
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - D Dey
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - S E Lee
- Yonsei University College of Medicine, Severance Cardiovascular Hospital, Seoul, Korea Republic of
| | - Y Otaki
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - M K Doris
- University of Edinburgh, Centre for Cardiovascular Sciences, Edinburgh, United Kingdom
| | - E Eisenberg
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - M Yun
- Yonsei University College of Medicine, Severance Cardiovascular Hospital, Seoul, Korea Republic of
| | - A Cho
- Yonsei University College of Medicine, Severance Cardiovascular Hospital, Seoul, Korea Republic of
| | - M A Jansen
- University of Edinburgh, Centre for Cardiovascular Sciences, Edinburgh, United Kingdom
| | - M R Dweck
- University of Edinburgh, Centre for Cardiovascular Sciences, Edinburgh, United Kingdom
| | - P J Slomka
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - D E Newby
- University of Edinburgh, Centre for Cardiovascular Sciences, Edinburgh, United Kingdom
| | - H J Chang
- Yonsei University College of Medicine, Severance Cardiovascular Hospital, Seoul, Korea Republic of
| | - D S Berman
- Cedars-Sinai Medical Center, Los Angeles, United States of America
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20
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Cho HJ, Choe WS, Lee HY, Lee SE, Oh BH. P6536Comparison of characteristics and 3-year outcomes in patients with acute heart failure with preserved, mid-range, and reduced ejection fraction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- H J Cho
- Seoul National University Hospital, Department of Internal Medicine, Seoul, Korea Republic of
| | - W S Choe
- Seoul National University Hospital, Department of Internal Medicine, Seoul, Korea Republic of
| | - H Y Lee
- Seoul National University Hospital, Department of Internal Medicine, Seoul, Korea Republic of
| | - S E Lee
- Asan Medical Center, Department of Cardiology, Seoul, Korea Republic of
| | - B H Oh
- Seoul National University Hospital, Department of Internal Medicine, Seoul, Korea Republic of
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Cho IJ, Lee SE, Lee SH, Lee S, Youn YN, Shim CY, Hong GR, Ha JW, Chang HJ. P4513Is long-term oral anticoagulation plus an antiplatelet drug better than anticoagulants alone after concomitant heart valve replacement and coronary artery bypass surgery? Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4513] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- I J Cho
- Yonsei University College of Medicine, Cardiology Division, Seoul, Korea Republic of
| | - S E Lee
- Yonsei University College of Medicine, Cardiology Division, Seoul, Korea Republic of
| | - S H Lee
- Yonsei University College of Medicine, Cardiovascular surgery, Seoul, Korea Republic of
| | - S Lee
- Yonsei University College of Medicine, Cardiovascular surgery, Seoul, Korea Republic of
| | - Y N Youn
- Yonsei University College of Medicine, Cardiovascular surgery, Seoul, Korea Republic of
| | - C Y Shim
- Yonsei University College of Medicine, Cardiology Division, Seoul, Korea Republic of
| | - G R Hong
- Yonsei University College of Medicine, Cardiology Division, Seoul, Korea Republic of
| | - J W Ha
- Yonsei University College of Medicine, Cardiology Division, Seoul, Korea Republic of
| | - H J Chang
- Yonsei University College of Medicine, Cardiology Division, Seoul, Korea Republic of
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22
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Lee SE, Lee HY. P278Coronary artery bypass graft versus percutaneous coronary intervention in patients presented with acute heart failure. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p278] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S E Lee
- Asan Medical Center, Seoul, Korea Republic of
| | - H Y Lee
- Seoul National University Hospital, Seoul, Korea Republic of
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Lee SE, Hadamitzky M, Kim YJ, Pontone G, Budoff MJ, Gottlieb I, Cademartiri F, Marques H, Leipsic JA, Berman DS, Shaw LS, Narula J, Bax JJ, Min JK, Chang HJ. P2486Differential association between the progression of coronary artery calcium and coronary plaque volume progression according to statins. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2486] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- S E Lee
- Yonsei University College of Medicine, Seoul, Korea Republic of
| | | | - Y J Kim
- Seoul National University Hospital, Seoul, Korea Republic of
| | - G Pontone
- Cardiology Center Monzino IRCCS, Milan, Italy
| | - M J Budoff
- University of California Los Angeles, Los Angeles, United States of America
| | - I Gottlieb
- Casa de Saude São Jose, Rio de Janeiro, Brazil
| | | | | | - J A Leipsic
- University of British Columbia, Vancouver, Canada
| | - D S Berman
- Cedars-Sinai Medical Center, Los Angeles, United States of America
| | - L S Shaw
- Emory University School of Medicine, Atlanta, United States of America
| | - J Narula
- Mount Sinai School of Medicine, New York, United States of America
| | - J J Bax
- Leiden University Medical Center, Leiden, Netherlands
| | - J K Min
- Weill Cornell Medical College, New York, United States of America
| | - H J Chang
- Yonsei University College of Medicine, Seoul, Korea Republic of
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Won KB, Lee SE, Lee BK, Sung JM, Park HB, Heo R, Hadamitzky M, Rizvi A, Kim YJ, Conte E, Andreini D, Budoff MJ, Leipsic JA, Min JK, Chang HJ. P2485Longitudinal quantitative assessment of coronary plaque progression related to glycemic status using serial coronary computed tomography angiography. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2485] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- K B Won
- Ulsan University Hospital, Cardiology, Ulsan, Korea Republic of
| | - S E Lee
- Yonsei Cardiovascular Center, Cardiology, Seoul, Korea Republic of
| | - B K Lee
- Gangnam Severance Hospital, Cardiology, Seoul, Korea Republic of
| | - J M Sung
- Yonsei Cardiovascular Center, Cardiology, Seoul, Korea Republic of
| | - H B Park
- International St. Mary's Hospital, Cardiology, Incheon, Korea Republic of
| | - R Heo
- Weill Cornell Medical College, Cardiovascular Imaging, New York, United States of America
| | - M Hadamitzky
- German Heart Center of Munich, Radiology, Munich, Germany
| | - A Rizvi
- Weill Cornell Medical College, Cardiovascular Imaging, New York, United States of America
| | - Y J Kim
- Seoul National University Hospital, Cardiology, Seoul, Korea Republic of
| | - E Conte
- Cardiology Center Monzino IRCCS, Medicine, Milan, Italy
| | - D Andreini
- Cardiology Center Monzino IRCCS, Medicine, Milan, Italy
| | - M J Budoff
- Harbor UCLA Medical Center, Medicine, Los Angeles, United States of America
| | - J A Leipsic
- St Paul's Hospital, Radiology, Vancouver, Canada
| | - J K Min
- Weill Cornell Medical College, Cardiovascular Imaging, New York, United States of America
| | - H J Chang
- Yonsei Cardiovascular Center, Cardiology, Seoul, Korea Republic of
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25
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Cho JY, Kim KH, Lee SE, Lee HY, Choi JO, Jeon ES, Kim JJ, Hwang KK, Chae SC, Baek SH, Kang SM, Choi DJ, Yoo BS, Cho MC, Oh BH. P6542Post-discharge worsening renal function predicts long-term adverse clinical outcomes in patients with acute heart failure. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6542] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- J Y Cho
- Chonnam National University Hospital, Cardiology, Gwangju, Korea Republic of
| | - K H Kim
- Chonnam National University Hospital, Cardiology, Gwangju, Korea Republic of
| | - S E Lee
- Asan Medical Center, Cardiology, Seoul, Korea Republic of
| | - H Y Lee
- Seoul National University Hospital, Seoul, Korea Republic of
| | - J O Choi
- Samsung Medical Center, Seoul, Korea Republic of
| | - E S Jeon
- Samsung Medical Center, Seoul, Korea Republic of
| | - J J Kim
- Asan Medical Center, Cardiology, Seoul, Korea Republic of
| | - K K Hwang
- Chungbuk National University Hospital, Cheongju, Korea Republic of
| | - S C Chae
- Kyungpook National University Hospital, Daegu, Korea Republic of
| | - S H Baek
- Seoul St. Mary's Hospital, Seoul, Korea Republic of
| | - S M Kang
- Yonsei University College of Medicine, Seoul, Korea Republic of
| | - D J Choi
- Seoul National University Bundang Hospital, Seongnam, Korea Republic of
| | - B S Yoo
- Wonju Christian Hospital, Wonju, Korea Republic of
| | - M C Cho
- Chungbuk National University Hospital, Cheongju, Korea Republic of
| | - B H Oh
- Seoul National University Hospital, Seoul, Korea Republic of
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Kim Y, Cho JY, Oh SW, Kang M, Lee SE, Jung E, Park YS, Lee J. Globular adiponectin acts as a melanogenic signal in human epidermal melanocytes. Br J Dermatol 2018; 179:689-701. [PMID: 29485733 DOI: 10.1111/bjd.16488] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/19/2018] [Indexed: 12/30/2022]
Abstract
BACKGROUND Adiponectin is an adipocyte-derived cytokine that circulates as a full-length protein and a fragment containing the globular domain of adiponectin (gAd). A recent study has reported the antimelanogenic effects of full-length adiponectin. OBJECTIVES To examine the involvement of gAd in melanogenesis and its mechanisms of action. METHODS The effects of gAd on melanogenesis and its mechanisms of action were investigated in human epidermal melanocytes and reconstructed epidermis, including melanin content, cellular tyrosinase activity, cyclic adenosine monophosphate (cAMP) production and protein kinase A (PKA) activity, expression and phosphorylation of signalling molecules. RESULTS Exogenous gAd increased melanin content, and the mRNA levels of microphthalmia-associated transcription factor (MITF) and its downstream genes TRP1, but not TRP2, were increased by gAd. However, cAMP production and PKA activity were not affected by gAd. Moreover, attempts to elucidate the underlying mechanism behind the gAd-mediated effect revealed that gAd could regulate melanogenesis by upregulating MITF through phosphorylation of the cAMP response element-binding protein (CREB). In addition, upregulation of MITF was mediated by activation of adenosine monophosphate-activated protein kinase (AMPK)-p38 mitogen-activated protein kinase (MAPK) signalling. Taken together, these findings indicate that promotion of melanogenesis by gAd occurs through increased expression of MITF, which is mediated by activation of the AMPK-p38 MAPK-CREB pathway. CONCLUSIONS These findings suggest that gAd contributes to epidermal homeostasis via its effect on melanocyte biology, and products of adipose tissue could affect epidermal biology.
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Affiliation(s)
- Y Kim
- Soonchunhyang Institute of Medi-bio Science, Soonchunhyang University, Cheonan City, 311-51, Chungcheongnam Do, Republic of Korea
| | - J Y Cho
- Department of Integrative Biotechnology and Biocosmetics Research Center, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon City, 164-19, Gyunggi Do, Republic of Korea
| | - S W Oh
- Department of Integrative Biotechnology and Biocosmetics Research Center, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon City, 164-19, Gyunggi Do, Republic of Korea
| | - M Kang
- Department of Integrative Biotechnology and Biocosmetics Research Center, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon City, 164-19, Gyunggi Do, Republic of Korea
| | - S E Lee
- Department of Integrative Biotechnology and Biocosmetics Research Center, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon City, 164-19, Gyunggi Do, Republic of Korea
| | - E Jung
- Biospectrum Life Science Institute, Seongnam City, 132-16, Gyunggi Do, Republic of Korea
| | - Y S Park
- Department of Microbiology, School of Medicine, Kyung Hee University, 024-53, Seoul, Republic of Korea
| | - J Lee
- Department of Integrative Biotechnology and Biocosmetics Research Center, College of Biotechnology and Bioengineering, Sungkyunkwan University, Suwon City, 164-19, Gyunggi Do, Republic of Korea
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Yeo HJ, Lee S, Yoon SH, Lee SE, Cho WH, Jeon D, Kim YS, Kim D. Extracorporeal Life Support as a Bridge to Lung Transplantation in Patients With Acute Respiratory Failure. Transplant Proc 2018; 49:1430-1435. [PMID: 28736018 DOI: 10.1016/j.transproceed.2017.02.064] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 02/10/2017] [Accepted: 02/23/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND Extracorporeal membrane oxygenation (ECMO) is being used more often as a bridge to transplantation (BTT) in patients with acutely decompensated end-stage lung disease in Korea. ECMO as a BTT may be the only rescue strategy for severe acute respiratory failure, but many centers still consider it to be a relative contraindication to lung transplantation because of its poor outcome. Because there are not enough lung donors, it is important to determine their optimal use. We reviewed and analyzed our experiences with the use of ECMO as a BTT in patients with acute respiratory failure. METHODS This was a retrospective analysis of all patients with acutely decompensated end-stage lung disease treated with ECMO as a bridge to lung transplantation between March 2012 and February 2016. RESULTS Of the 194 patients who underwent respiratory ECMO over a 4-year period, a BTT strategy was used for 19 patients (median age, 58 years) on our institution's lung transplantation waiting list (15 veno-venous, 3 veno-veno-arterial, 1 veno-arterial). Fourteen patients (73.7%) were successfully bridged to transplantation; however, 3 died while on the waiting list and 2 returned to their baseline functions without transplantation. The overall in-hospital survival rate was 57.9% (11 of 19), including the 9 (64.3%) patients who underwent transplantation. CONCLUSIONS Our findings support the view that well-selected candidates with acutely decompensated end-stage lung disease may be safely bridged until a suitable donor is identified. ECMO is not able to reverse the course of patients; however, it could be a life-saving option for patients with acute respiratory failure requiring lung transplantation.
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Affiliation(s)
- H J Yeo
- Department of Pulmonology and Critical Care Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - S Lee
- Department of Pulmonology and Critical Care Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - S H Yoon
- Department of Pulmonology and Critical Care Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - S E Lee
- Department of Pulmonology and Critical Care Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - W H Cho
- Department of Pulmonology and Critical Care Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - D Jeon
- Department of Pulmonology and Critical Care Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Y S Kim
- Department of Pulmonology and Critical Care Medicine, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - D Kim
- Department of Thoracic and Cardiovascular Surgery, Pusan National University, Yangsan Hospital, Yangsan, Republic of Korea.
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Cho YK, Kang YM, Lee SE, Lee J, Park JY, Lee WJ, Kim YJ, Jung CH. Efficacy and safety of combination therapy with SGLT2 and DPP4 inhibitors in the treatment of type 2 diabetes: A systematic review and meta-analysis. Diabetes Metab 2018; 44:393-401. [PMID: 29449146 DOI: 10.1016/j.diabet.2018.01.011] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Revised: 12/27/2017] [Accepted: 01/12/2018] [Indexed: 01/14/2023]
Abstract
BACKGROUND This review evaluated the efficacy and safety of a combination therapy comprising a sodium-glucose cotransporter type 2 inhibitor (SGLT2i) and dipeptidyl peptidase-4 inhibitor (DPP4i) in type 2 diabetes. METHODS A literature search through to May 2017 was carried out of PubMed, Embase and the Cochrane Central Register of Controlled Trials. Studies were eligible if they were randomized controlled trials (RCTs) comparing SGLT2i plus DPP4i (SGLT2i/DPP4i) against DPP4i±placebo or SGLT2i±placebo and published in English. The primary outcome was change in HbA1c from baseline. RESULTS Eight RCTs comparing SGLT2i/DPP4i and DPP4i, and five RCTs comparing SGLT2i/DPP4i and SGLT2i, with three RCTs involving both comparisons, were included in the present review. SGLT2i/DPP4i resulted in a greater mean HbA1c reduction [weighted mean difference (WMD]): -0.62%] than did DPP4i alone, which was a much less marked reduction (WMD: -0.35%) than with SGLT2i alone. Also, significant differences in body weight loss from baseline were observed only with SGLT2i/DPP4i vs. DPP4i, but not vs. SGLT2i. The risk of hypoglycaemic events was low and similar between treatment groups. When subjects were stratified based on baseline HbA1c, any reduction by SGLT2i/DPP4i in relation to DPP4i was proportional to baseline HbA1c levels. However, compared with SGLT2i, HbA1c reductions with SGLT2i/DPP4i were modest regardless of baseline HbA1c. CONCLUSION Combination therapy with SGLT2i and DPP4i is both efficacious and safe. In particular, a marked additional glucose-lowering effect is evident when SGLT2i is combined with or added to DPP4i, and not vice versa. However, baseline HbA1c determined the additional glucose-lowering effects of SGLT2i in combined treatment with DPP4i.
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Affiliation(s)
- Y K Cho
- Department of Internal Medicine, Asan Medical Centre, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, 05505 Seoul, Republic of Korea
| | - Y M Kang
- Department of Internal Medicine, Asan Medical Centre, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, 05505 Seoul, Republic of Korea
| | - S E Lee
- Department of Internal Medicine, Asan Medical Centre, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, 05505 Seoul, Republic of Korea
| | - J Lee
- Department of Internal Medicine, Asan Medical Centre, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, 05505 Seoul, Republic of Korea
| | - J-Y Park
- Department of Internal Medicine, Asan Medical Centre, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, 05505 Seoul, Republic of Korea
| | - W J Lee
- Department of Internal Medicine, Asan Medical Centre, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, 05505 Seoul, Republic of Korea
| | - Y-J Kim
- Department of Clinical Epidemiology and Biostatistics, Asan Medical Centre, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, 05505 Seoul, Republic of Korea
| | - C H Jung
- Department of Internal Medicine, Asan Medical Centre, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, 05505 Seoul, Republic of Korea.
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Cho SB, Na J, Zheng Z, Lim JM, Kang JS, Lee JH, Lee SE. In vivo skin reactions from pulsed-type, bipolar, alternating current radiofrequency treatment using invasive noninsulated electrodes. Skin Res Technol 2018; 24:318-325. [PMID: 29368439 DOI: 10.1111/srt.12433] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/01/2018] [Indexed: 01/29/2023]
Abstract
BACKGROUND Bipolar, alternating current radiofrequency (RF) conduction using invasive noninsulated electrodes consecutively generates independent tissue coagulation around each electrode and then, the converged coagulation columns. METHODS Two pulsed-type RF models at the on-time pulse width/pulse pack of 30 and 40 milliseconds were designed to amplify the early stage of RF-induced tissue reaction using hairless mouse skin in vivo. Then, structural and ultrastructural changes were evaluated in hairless mouse skin samples at baseline and immediately 1 day, 3 days, 7 days, and 14 days after treatment. RESULTS Immediately after pulsed-RF treatment, a few chrysanthemum-like zones of electrothermal coagulation and hypereosinophilic collagen fibers were found in the dermis and dermo-subcutaneous fat junction. Histochemical staining for periodic acid-Schiff and immunohistochemical staining for type IV collagen revealed marked thickening of basement membranes. Transmission electron microscopy demonstrated that pulsed-RF treatment resulted in higher electron-dense and remarkably thicker lamina densa, as well as increases in anchoring fibrils, compared with untreated control specimens. Furthermore, CD31-positive blood vessels were smaller in size with a slit-like luminal appearance, without excessive damage to endothelial cells. CONCLUSION Our data indicated that pulse-type, bipolar RF energy induces structural and ultrastructural changes in basement membranes and vascular components in hairless mouse skin.
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Affiliation(s)
- S B Cho
- Department of Dermatology and Cutaneous Biology Research Center, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea.,Kangskin Dermatology Clinic, Seoul, Korea
| | - J Na
- Department of Anatomy, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Z Zheng
- Department of Dermatology and Cutaneous Biology Research Center, International St. Mary's Hospital, Catholic Kwandong University College of Medicine, Incheon, Korea.,Department of Dermatology, Yanbian University Hospital, Yanji, China
| | - J M Lim
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - J-S Kang
- Kangskin Dermatology Clinic, Seoul, Korea
| | - J H Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - S E Lee
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
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Seo Kyung H, Park JY, Kim HD, Lee Dea Y, Choi Doo J, Lee Jea W, Lee YS, Lee SE, Kim Geum S. Antioxidant and anti-inflammatory Studies of mushrooms. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608556] [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: 10/18/2022]
Affiliation(s)
- H Seo Kyung
- Rual Development Adiministration, Eumseing, Korea, Republic of (South)
| | - JY Park
- Rual Development Adiministration, Eumseing, Korea, Republic of (South)
| | - HD Kim
- Rual Development Adiministration, Eumseing, Korea, Republic of (South)
| | - Y Lee Dea
- Rual Development Adiministration, Eumseing, Korea, Republic of (South)
| | - J Choi Doo
- Rual Development Adiministration, Eumseing, Korea, Republic of (South)
| | - W Lee Jea
- Rual Development Adiministration, Eumseing, Korea, Republic of (South)
| | - YS Lee
- Rual Development Adiministration, Eumseing, Korea, Republic of (South)
| | - SE Lee
- Rual Development Adiministration, Eumseing, Korea, Republic of (South)
| | - S Kim Geum
- Rual Development Adiministration, Eumseing, Korea, Republic of (South)
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31
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Kim Hyung D, Kim GS, Lee SE, Lee Dae Y, Seo Kyung H, Lee YS, Lee Jae W, Choi Doo J. Protective effect of Saururus chinensis extract against an endocrine disruptor in mouse testicular germ cell line. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608422] [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: 10/18/2022]
Affiliation(s)
- D Kim Hyung
- Department of Herbal Crop Research, NIHHS, RDA, Eumseong, Korea, Republic of (South)
- Department of Biochemistry, School of Life Sciences, Chungbuk National University, Cheongju, Korea, Republic of (South)
| | - GS Kim
- Department of Herbal Crop Research, NIHHS, RDA, Eumseong, Korea, Republic of (South)
| | - SE Lee
- Department of Herbal Crop Research, NIHHS, RDA, Eumseong, Korea, Republic of (South)
| | - Y Lee Dae
- Department of Herbal Crop Research, NIHHS, RDA, Eumseong, Korea, Republic of (South)
| | - H Seo Kyung
- Department of Herbal Crop Research, NIHHS, RDA, Eumseong, Korea, Republic of (South)
| | - YS Lee
- Department of Herbal Crop Research, NIHHS, RDA, Eumseong, Korea, Republic of (South)
| | - W Lee Jae
- Department of Herbal Crop Research, NIHHS, RDA, Eumseong, Korea, Republic of (South)
| | - J Choi Doo
- Department of Herbal Crop Research, NIHHS, RDA, Eumseong, Korea, Republic of (South)
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Young EE, Bryant CD, Lee SE, Peng X, Cook B, Nair HK, Dreher KJ, Zhang X, Palmer AA, Chung JM, Mogil JS, Chesler EJ, Lariviere WR. Systems genetic and pharmacological analysis identifies candidate genes underlying mechanosensation in the von Frey test. Genes Brain Behav 2017; 15:604-15. [PMID: 27231153 DOI: 10.1111/gbb.12302] [Citation(s) in RCA: 7] [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] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 05/05/2016] [Accepted: 05/24/2016] [Indexed: 12/22/2022]
Abstract
Mechanical sensitivity is commonly affected in chronic pain and other neurological disorders. To discover mechanisms of individual differences in punctate mechanosensation, we performed quantitative trait locus (QTL) mapping of the response to von Frey monofilament stimulation in BXD recombinant inbred (BXD) mice. Significant loci were detected on mouse chromosome (Chr) 5 and 15, indicating the location of underlying polymorphisms that cause heritable variation in von Frey response. Convergent evidence from public gene expression data implicates candidate genes within the loci: von Frey thresholds were strongly correlated with baseline expression of Cacna2d1, Ift27 and Csnk1e in multiple brain regions of BXD strains. Systemic gabapentin and PF-670462, which target the protein products of Cacna2d1 and Csnk1e, respectively, significantly increased von Frey thresholds in a genotype-dependent manner in progenitors and BXD strains. Real-time polymerase chain reaction confirmed differential expression of Cacna2d1 and Csnk1e in multiple brain regions in progenitors and showed differential expression of Cacna2d1 and Csnk1e in the dorsal root ganglia of the progenitors and BXD strains grouped by QTL genotype. Thus, linkage mapping, transcript covariance and pharmacological testing suggest that genetic variation affecting Cacna2d1 and Csnk1e may contribute to individual differences in von Frey filament response. This study implicates Cacna2d1 and Ift27 in basal mechanosensation in line with their previously suspected role in mechanical hypersensitivity. Csnk1e is implicated for von Frey response for the first time. Further investigation is warranted to identify the specific polymorphisms involved and assess the relevance of these findings to clinical conditions of disturbed mechanosensation.
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Affiliation(s)
- E E Young
- Department of Anesthesiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,School of Nursing, University of Connecticut, Storrs, CT, USA.,Institute for Systems Genomics, University of Connecticut, Storrs, CT, USA
| | - C D Bryant
- Department of Pharmacology and Experimental Therapeutics and Department of Psychiatry, Boston University School of Medicine, Boston, MA, USA
| | - S E Lee
- Department of Neuroscience & Cell Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - X Peng
- Department of Anesthesiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - B Cook
- Department of Anesthesiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - H K Nair
- Department of Anesthesiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - K J Dreher
- Department of Anesthesiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - X Zhang
- Department of Anesthesiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - A A Palmer
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA.,Department of Human Genetics, University of Chicago, Chicago, IL, USA.,Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
| | - J M Chung
- Department of Neuroscience & Cell Biology, University of Texas Medical Branch, Galveston, TX, USA
| | - J S Mogil
- Department of Psychology and Alan Edwards Centre for Research on Pain, McGill University, Montreal, Canada
| | - E J Chesler
- Mammalian Genetics & Genomics, Oak Ridge National Laboratory, Oak Ridge, TN, USA.,The Jackson Laboratory, Bar Harbor, ME, USA
| | - W R Lariviere
- Department of Anesthesiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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Kim K, Lee S, Yoon J, Heo J, Choi C, Park Y. Three-dimensional label-free imaging and quantification of lipid droplets in live hepatocytes. Sci Rep 2016; 6:36815. [PMID: 27874018 PMCID: PMC5118789 DOI: 10.1038/srep36815] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [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: 06/23/2016] [Accepted: 10/11/2016] [Indexed: 12/22/2022] Open
Abstract
Lipid droplets (LDs) are subcellular organelles with important roles in lipid storage and metabolism and involved in various diseases including cancer, obesity, and diabetes. Conventional methods, however, have limited ability to provide quantitative information on individual LDs and have limited capability for three-dimensional (3-D) imaging of LDs in live cells especially for fast acquisition of 3-D dynamics. Here, we present an optical method based on 3-D quantitative phase imaging to measure the 3-D structural distribution and biochemical parameters (concentration and dry mass) of individual LDs in live cells without using exogenous labelling agents. The biochemical change of LDs under oleic acid treatment was quantitatively investigated, and 4-D tracking of the fast dynamics of LDs revealed the intracellular transport of LDs in live cells.
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Affiliation(s)
- Kyoohyun Kim
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - SeoEun Lee
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Jonghee Yoon
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - JiHan Heo
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - Chulhee Choi
- Department of Bio and Brain Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea
| | - YongKeun Park
- Department of Physics, Korea Advanced Institute of Science and Technology, Daejeon 34141, Republic of Korea.,TOMOCUBE, Inc., Daejeon 34051, Republic of Korea
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Dahinten VS, Lee SE, MacPhee M. Disentangling the relationships between staff nurses' workplace empowerment and job satisfaction. J Nurs Manag 2016; 24:1060-1070. [PMID: 27353065 DOI: 10.1111/jonm.12407] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/23/2016] [Indexed: 12/01/2022]
Abstract
AIM The primary aim of this study was to examine the relationships between structural empowerment, psychological empowerment and job satisfaction among staff nurses, after controlling for their leaders' use of empowering behaviours. BACKGROUND Nurses' job satisfaction is a critical factor in health-care organisations because of its association with nurse turnover and quality of patient care. Nurses continue to report high levels of job dissatisfaction. METHODS Cross-sectional data for 1007 Canadian staff nurses were analysed using hierarchical multiple regression. RESULTS Structural empowerment was the strongest independent predictor of job satisfaction, followed by leader empowering behaviours and psychological empowerment. After accounting for the effects of structural empowerment and leader empowering behaviours, the four dimensions of psychological empowerment showed only small independent effects on job satisfaction. Psychological empowerment did not mediate the effects of structural empowerment on job satisfaction. CONCLUSION Nurses' job satisfaction is most influenced by their access to organisational empowerment structures. Leader empowering behaviours, structural empowerment, and psychological empowerment, operating together, enhance nurses' job satisfaction. IMPLICATIONS FOR NURSING MANAGEMENT Nurse leaders should use a variety of empowerment strategies that are important to nurses' job satisfaction and potentially to the quality of patient care and nurse turnover.
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Affiliation(s)
- V S Dahinten
- School of Nursing, University of British Columbia, Vancouver, BC, Canada.
| | - S E Lee
- College of Nursing, University of Illinois at Chicago, Chicago, IL, USA
| | - M MacPhee
- School of Nursing, University of British Columbia, Vancouver, BC, Canada
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35
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Obeidat M, Cline K, Stathakis S, Papanikolaou N, Rasmussen K, Gutierrez A, Ha CS, Lee SE, Shim EY, Kirby N. MO-AB-BRA-04: Radiation Measurements with a DNA Double-Strand-Break Dosimeter. Med Phys 2016. [DOI: 10.1118/1.4957156] [Citation(s) in RCA: 3] [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: 11/07/2022] Open
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36
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Obeidat M, Cline K, Stathakis S, Papanikolaou N, Rasmussen K, Gutierrez A, Ha CS, Lee SE, Shim EY, Kirby N. TH-CD-201-11: Optimizing the Response and Cost of a DNA Double-Strand Break Dosimeter. Med Phys 2016. [DOI: 10.1118/1.4958134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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37
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Jang JY, Chang YR, Kim SW, Choi SH, Park SJ, Lee SE, Lim CS, Kang MJ, Lee H, Heo JS. Randomized multicentre trial comparing external and internal pancreatic stenting during pancreaticoduodenectomy. Br J Surg 2016; 103:668-675. [PMID: 27040594 DOI: 10.1002/bjs.10160] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 01/22/2016] [Accepted: 02/12/2016] [Indexed: 02/06/2023]
Abstract
BACKGROUND There is no consensus on the best method of preventing postoperative pancreatic fistula (POPF) after pancreaticoduodenectomy (PD). This multicentre, parallel group, randomized equivalence trial investigated the effect of two ways of pancreatic stenting after PD on the rate of POPF. METHODS Patients undergoing elective PD or pylorus-preserving PD with duct-to-mucosa pancreaticojejunostomy were enrolled from four tertiary referral hospitals. Randomization was stratified according to surgeon with a 1 : 1 allocation ratio to avoid any related technical factors. The primary endpoint was clinically relevant POPF rate. Secondary endpoints were nutritional index, remnant pancreatic volume, long-term complications and quality of life 2 years after PD. RESULTS A total of 328 patients were randomized to the external (164 patients) or internal (164) stent group between August 2010 and January 2014. The rates of clinically relevant POPF were 24·4 per cent in the external and 18·9 per cent in the internal stent group (risk difference 5·5 per cent). As the 90 per cent confidence interval (-2·0 to 13·0 per cent) did not fall within the predefined equivalence limits (-10 to 10 per cent), the clinically relevant POPF rates in the two groups were not equivalent. Similar results were observed for patients with soft pancreatic texture and high fistula risk score. Other postoperative outcomes were comparable between the two groups. Five stent-related complications occurred in the external stent group. Multivariable analysis revealed that soft pancreatic texture, non-pancreatic disease and high body mass index (23·3 kg/m2 or above) predicted clinically relevant POPF. CONCLUSION External stenting after PD was associated with a higher rate of clinically relevant POPF than internal stenting. Registration number: NCT01023594 (https://www.clinicaltrials.gov).
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Affiliation(s)
- J-Y Jang
- Departments of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Y R Chang
- Departments of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S-W Kim
- Departments of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - S H Choi
- Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S J Park
- Centre for Liver Cancer, National Cancer Centre, Gyeonggido, Republic of Korea
| | - S E Lee
- Chung-Ang University Hospital, Seoul, Republic of Korea
| | - C-S Lim
- Departments of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - M J Kang
- Departments of Surgery, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - H Lee
- Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - J S Heo
- Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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Kim TY, Ahn JH, Yoon JH, Sohn JH, Kim GM, Lee KH, Park YH, Koh SJ, Lee SE, Chae Y, Lee KS, Lee KE, Won HS, Kim JH, Jeong J, Park KH, Cho EK, Im YH, Im SA, Jung KH. Abstract P1-09-09: Role of endocrine therapy in premenopausal patients with hormone receptor-positive metastatic breast cancer, compared with postmenopausal patients: Diachronic analyses from nationwide cohort in Korea (KCSG BR 14-07). Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p1-09-09] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Endocrine therapy (E) has a major role in treatment of hormone receptor (HR)-positive metastatic breast cancer (MBC). However, in contrast to western countries, premenopausal patients (PRE) more prevalent (50% of all breast cancer patients) and have less options of E than postmenopausal patients (POST) in Korea where the use of LHRH agonist in combination aromatase inhibitors (AIs) in PRE is restricted. Recently we have been successfully established nationwide cohort for the patients MBC (575 patients from 26 institutes). This study was designed to evaluate the role of E especially in PRE.
Methods
The patients with MBC were prospectively or retrospectively enrolled between September 2014 and May 2015. Only menopausal status-confirmed patients (296) were analyzed. Postmenopause was defined, based on NCCN guideline. Total duration of treatment was defined as the time from start day of any first treatment to end of any last treatment. Total duration of E was defined as the sum of time duration of each E. Overall survival was calculated from the start day of any treatment for MBC to any causes of death. This work is supported by National Strategic Coordinating Center for Clinical Research (H110C2020).
Results
A total of 296 patients with HR-positive MBC were analyzed [PRE, 169 (57.1%) and POST, 127 (42.9%)]. Except age (mean 44 and 60 years), baseline characteristics including in pathology, HER2 status, initial pathologic stage, de novo metastasis versus recurrence, surgery and adjuvant treatment (chemotherapy, endocrine therapy and radiotherapy) were well balanced. 92 (54.4%) of PRE and 77 (60.6%) of POST received at least one or more E through all treatment course. 41 (24.2%) of PRE and 44 (34.6%) received E as 1st-line treatment (p=0.034). Among PRE who received 1st-line of E, 30 (71.4%) and 9 (21.4%) of PRE received 2nd- and 3rd-line E. 20 (45.4%) and 10 (22.7%) of POST received 2nd- and 3rd- or more line of E. Most of PRE (54%) received tamoxifen+/-goserelin and 32% of PRE received AIs along with ovarian suppression. 71% of POST received AIs. As initial treatment, E was more frequently used in POST than in PRE (34.6% and 24.3%, p=0.053). Overall survival (OS) of all patients was 18.2 months (95% CI, 14.8-21.5). There was no difference in OS between PRE (17.8 months, 10.9-24.8) and POST (18.5 months, 95% CI, 13.2-23.9) (P=0.337). No difference of OS was observed (E, 18.1 moths, 95% CI, 13.0-23.3; chemotherapy 21.2 moths, 95% CI, 16.8-25.5), regardless of initial treatment. Total duration of treatment of PRE and POST were 15.2 and 13.6 months, respectively with no significant difference (p=0.389). PRE (8.3 moths, 95% CI,5.7-10.8) showed the trend toward longer duration of E in comparison with POST (5.5 moths, 95% CI,4.4-6.7), however the difference did not reach statistical significance (p=0.051).
Conclusion
E was more commonly used as 1st-line therapy in POST than in PRE. Although PRE had limited options of E, E was used in long duration of treatment especially in PRE. These findings suggested that E had a role in treatment for PRE with HR-positive MBC and could be used in treatment for PRE with good efficacy.
Citation Format: Kim T-Y, Ahn J-H, Yoon JH, Sohn JH, Kim GM, Lee KH, Park YH, Koh S-J, Lee SE, Chae Y, Lee KS, Lee KE, Won HS, Kim JH, Jeong J, Park KH, Cho EK, Im Y-H, Im S-A, Jung KH. Role of endocrine therapy in premenopausal patients with hormone receptor-positive metastatic breast cancer, compared with postmenopausal patients: Diachronic analyses from nationwide cohort in Korea (KCSG BR 14-07). [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P1-09-09.
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Affiliation(s)
- T-Y Kim
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - J-H Ahn
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - JH Yoon
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - JH Sohn
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - GM Kim
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - KH Lee
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - YH Park
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - S-J Koh
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - SE Lee
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - Y Chae
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - KS Lee
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - KE Lee
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - HS Won
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - JH Kim
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - J Jeong
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - KH Park
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - EK Cho
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - Y-H Im
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - S-A Im
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
| | - KH Jung
- Seoul National University Hospital, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Republic of Korea; Yonsei University College of Medicine, Kwangju, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Samsung Medical Center, Seoul; Ulsan University Hospital, Ulsan; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu, Republic of Korea; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea
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Kim TY, Sohn JH, Kim SB, Yoon JH, Kim GM, Lee KH, Koh SJ, Park YH, Lee SE, Chae Y, Lee KS, Lee KE, Won HS, Kim JH, Jeong J, Park KH, Cho EK, Im YH, Im SA, Jung KH. Abstract P6-10-03: Does participation in clinical trials influence on survival in patients with metastatic breast cancer? Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p6-10-03] [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: 11/16/2022]
Abstract
Abstract
Background
Recently, many clinical trials (TRIAL) especially incorporated with molecular-targeted agents are being conducted in treatment for breast cancer worldwide. However, the relation of participating clinical trials with survival has not been actively studied. This study was designed to evaluate whether participation in clinical trials could improve overall survival (OS) or not in patients with metastatic breast cancer (MBC), compared with conventional treatment.
Method
Korean Cancer Study Group (KCSG) has successfully established Nationwide Cohort in KOREA to conduct diachronic analysis (KCSG BR 14-07). Clinical data for patients with MBC were collected from this Cohort. OS was defined as the time duration from first diagnosis of metastasis to any cause of death. This work is supported by National Strategic Coordinating Center for Clinical Research (H110C2020).
Results
A total of 575 patients with metastatic breast from 26 institutes in KOREA cancer MBC were consequently enrolled between September 2014 and May 2015. 156 (27.1%) of patients were enrolled to at least one or more clinical trials and 419 patients received only conventional treatment (CONV). Age, hormone status, HER2 status, initial pathologic stage, metastasis versus recurrence, adjuvant treatment, ECOG performance status (PS) (0, 1 vs 2 or more) were similar between TRIAL and CONV. 30% of trials were associated with HER2-targeted agents. As initial treatment, chemotherapy was more frequently used in TRIAL (85.9%) than in CONV (79.0%) (P=0.038). Number of regimens of chemotherapy was greater in TRIAL (2.9+/-1.8) than CONV (2.1+/-1.6) (P<0.001). Number of regimens of endocrine therapy (E) was similar between TRIAL (1.4+/-0.6) and CONV (1.5+/-0.7) (P=0.474). Overall survival of all patients was 16.2 months (95% CI, 14.1-18.1). TRIAL showed significant prolongation of survival, compared with CONV [21.1 (95% CI, 17.7-24.6) vs 15.1 months (95% CI, 13.1-17.2); P=0.005]. The differences in OS was constantly observed in HER2-positive [23.8 (16.7-30.9) vs 17.2 months (95% CI, 12.4-21.9); P=0.018] and Triple-negative [15.4 (10.5-20.3) vs 12.0 months (95% CI, 10.2-13.8); P=0.025]. In multivariate analysis, initial metastasis, hormone status, ECOG PS did not influence on OS between TRIAL and CONV (P=0.849)
Conclusion
Participating in clinical trials could be associated with prolongation of survival. This results constantly maintained in HER2-positive and triple-negative MBC. These findings suggested that clinical trials are useful for the patients with MBC, even if the patients do not complete the standard treatment.
Citation Format: Kim T-Y, Sohn JH, Kim S-B, Yoon JH, Kim GM, Lee KH, Koh S-J, Park YH, Lee SE, Chae Y, Lee KS, Lee KE, Won HS, Kim JH, Jeong J, Park KH, Cho EK, Im Y-H, Im S-A, Jung KH. Does participation in clinical trials influence on survival in patients with metastatic breast cancer?. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P6-10-03.
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Affiliation(s)
- T-Y Kim
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - JH Sohn
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - S-B Kim
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - JH Yoon
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - GM Kim
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - KH Lee
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - S-J Koh
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - YH Park
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - SE Lee
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Y Chae
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - KS Lee
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - KE Lee
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - HS Won
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - JH Kim
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - J Jeong
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - KH Park
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - EK Cho
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - Y-H Im
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - S-A Im
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
| | - KH Jung
- Seoul National University Hospital, Seoul, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Samsung Medical Center, Seoul, Republic of Korea; Division of Breast-Endocrine Surgery, Chonnam National Univ. Hwasun Hospital, Kwangju, Republic of Korea; Yonsei University College of Medicine, Seoul, Republic of Korea; Chungbuk National University Hospital, Cheongju, Republic of Korea; Ulsan University Hospital, Ulsan, Republic of Korea; Dong-A University Hospital, Pusan, Republic of Korea; Kyungpook National University Hospital, Daegu; Center for Breast Cancer, National Cancer Center, Goyang, Republic of Korea; Ewha Womans University Hospital, Seoul, Republic of Korea; Uijeongbu St. Mary's Hospital, Uijeongbu, Republic of Korea; Seoul National University Bundang Hospital, Sungnam, Republic of Korea; Gangnam Severance Hospital, Seoul, Republic of Korea; Korea University Anam Hospital, Seoul, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea
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Jeong SO, Lee SE, Shin KI. Relative Error Prediction via Penalized Regression. Korean Journal of Applied Statistics 2015. [DOI: 10.5351/kjas.2015.28.6.1103] [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: 11/11/2022]
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Suh SW, Choi YS, Lee SE, Kang H. Internal herniation due to an omphalomesenteric duct cyst in a 69-year-old man. Z Gastroenterol 2015; 53:1084-6. [PMID: 26367024 DOI: 10.1055/s-0035-1553340] [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: 10/23/2022]
Abstract
Previous abdominal surgery is the most common cause of mechanical small bowel obstruction. However, in patients with no history of abdominal surgery, the diagnosis and treatment of mechanical small bowel obstruction is difficult. A persistent omphalomesenteric duct remnant is a rare finding that typically presents in the pediatric population and is extremely rare in patients aged > 60 years. In the present report, we describe the case of an omphalomesenteric duct cyst causing small bowel obstruction in a 69-year-old man with no history of a surgical procedure.
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Affiliation(s)
- S W Suh
- Department of Surgery, Chung Ang University Hospital, Seoul, Korea, Republic of
| | - Y S Choi
- Department of Surgery, Chung Ang University Hospital, Seoul, Korea, Republic of
| | - S E Lee
- Department of Surgery, Chung Ang University Hospital, Seoul, Korea, Republic of
| | - H Kang
- Anesthesiology and Pain Medicine, Chung-Ang University Hospital, Seoul, Korea (the Republic of)
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Lim J, Lee K, Jin KH, Shin S, Lee S, Park Y, Ye JC. Comparative study of iterative reconstruction algorithms for missing cone problems in optical diffraction tomography. Opt Express 2015; 23:16933-48. [PMID: 26191704 DOI: 10.1364/oe.23.016933] [Citation(s) in RCA: 117] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In optical tomography, there exist certain spatial frequency components that cannot be measured due to the limited projection angles imposed by the numerical aperture of objective lenses. This limitation, often called as the missing cone problem, causes the under-estimation of refractive index (RI) values in tomograms and results in severe elongations of RI distributions along the optical axis. To address this missing cone problem, several iterative reconstruction algorithms have been introduced exploiting prior knowledge such as positivity in RI differences or edges of samples. In this paper, various existing iterative reconstruction algorithms are systematically compared for mitigating the missing cone problem in optical diffraction tomography. In particular, three representative regularization schemes, edge preserving, total variation regularization, and the Gerchberg-Papoulis algorithm, were numerically and experimentally evaluated using spherical beads as well as real biological samples; human red blood cells and hepatocyte cells. Our work will provide important guidelines for choosing the appropriate regularization in ODT.
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McCarty CA, Lee SE, Livingston PM, Taylor HR. Assessment of lifetime ocular exposure to UV-B: the Melbourne Visual Impairment Project. Dev Ophthalmol 2015; 27:9-13. [PMID: 8969956 DOI: 10.1159/000425642] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- C A McCarty
- Department of Ophthalmology, University of Melbourne, Royal Victorian Eye and Ear Hospital, Australia
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Jung J, Kim K, Yu H, Lee K, Lee S, Nahm S, Park H, Park Y. Biomedical applications of holographic microspectroscopy [invited]. Appl Opt 2014; 53:G111-22. [PMID: 25322118 DOI: 10.1364/ao.53.00g111] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
The identification and quantification of specific molecules are crucial for studying the pathophysiology of cells, tissues, and organs as well as diagnosis and treatment of diseases. Recent advances in holographic microspectroscopy, based on quantitative phase imaging or optical coherence tomography techniques, show promise for label-free noninvasive optical detection and quantification of specific molecules in living cells and tissues (e.g., hemoglobin protein). To provide important insight into the potential employment of holographic spectroscopy techniques in biological research and for related practical applications, we review the principles of holographic microspectroscopy techniques and highlight recent studies.
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Abstract
Spatially distributed sediment delivery (SEDD) models are of great interest in estimating the expected effect of changes on soil erosion and sediment yield. However, they can only be applied if the model can be calibrated using observed data. This paper presents a geographic information system (GIS)-based method to calculate the sediment discharge from basins to coastal areas. For this, an SEDD model, with a sediment rating curve method based on observed data, is proposed and validated. The model proposed here has been developed using the combined application of the revised universal soil loss equation (RUSLE) and a spatially distributed sediment delivery ratio, within Model Builder of ArcGIS's software. The model focuses on spatial variability and is useful for estimating the spatial patterns of soil loss and sediment discharge. The model consists of two modules, a soil erosion prediction component and a sediment delivery model. The integrated approach allows for relatively practical and cost-effective estimation of spatially distributed soil erosion and sediment delivery, for gauged or ungauged basins. This paper provides the first attempt at estimating sediment delivery ratio based on observed data in the monsoon region of Korea.
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Affiliation(s)
- S E Lee
- Environmental Research Institute, Kangwon National University, 245-711, Samcheok city, Kangwon-do, South Korea and Department of Energy & Mineral Resources Engineering, Kangwon National University, 245-711, Samcheok city, Kangwon-do, South Korea E-mail:
| | - S H Kang
- Environmental Research Institute, Kangwon National University, 245-711, Samcheok city, Kangwon-do, South Korea and Department of Energy & Mineral Resources Engineering, Kangwon National University, 245-711, Samcheok city, Kangwon-do, South Korea E-mail:
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Lim JG, Heo YT, Lee SE, Jang WI, Min SG, Uhm SJ, Kim NH. A new modified cut standard straw vitrification technique reduces the apoptosis of mouse blastocysts and generates more live mouse offspring. Cryo Letters 2013; 34:598-607. [PMID: 24441370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Effects of freezing on apoptosis and autophagy in embryos are poorly understood. This study introduces a simple and successful method (modified cut standard straw, M-CSS) for cryopreservation of mouse zygotes. Apoptosis and autophagy were investigated in cultured mouse blastocysts derived from vitrified zygotes using two vitrification containers (M-CSS vs 0.25-ml straw). The percentages of zygotes that survived and developed into blastocysts and the number of cells per blastocyst were higher in the M-CSS group than in the 0.25 ml straw group; whereas the rate of apoptosis in blastocysts was significantly lower in the M-CSS group than in the 0.25-ml straw group. The expression of the apoptosis-related gene Caspase 3 in blastocysts was higher in the 0.25-ml straw group than in the M-CSS group; however, there were no significant differences in autophagy between these two groups. Vitrified-thawed mouse zygotes were transferred into recipients. The percentage of recipients that became pregnant and the percentage of transferred zygotes that developed into live offspring were significantly lower in the 0.25-ml straw group than in the M-CSS (10.2% vs. 17.5%). In conclusion, the novel M-CSS procedure improves oocyte and embryo vitrification. The standard 0.25-ml straw vitrification procedure induces mitochondrial apoptosis in zygotes in an autophagy-independent manner.
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Affiliation(s)
- J G Lim
- Department of Animal Sciences, Chungbuk National University, Cheongju, South Korea. Min Byeong Yeol Obstetrics and Gynecology, Cheongju, South Korea
| | - Y T Heo
- Department of Animal Sciences, Chungbuk National University, Cheongju, South Korea
| | - S E Lee
- Department of Animal Sciences, Chungbuk National University, Cheongju, South Korea
| | - W I Jang
- Department of Animal Sciences, Chungbuk National University, Cheongju, South Korea
| | - S G Min
- School of Medicine, Chungbuk National University, Cheongju, South Korea
| | - S J Uhm
- Industrial Education Field, Sangji Youngseo College, Wonju, South Korea
| | - N H Kim
- Department of Animal Sciences, Chungbuk National University, Cheongju, South Korea.
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Lee SE, Lee JU, Lee MH, Ryu MJ, Kim SJ, Kim YK, Choi MJ, Kim KS, Kim JM, Kim JW, Koh YW, Lim DS, Jo YS, Shong M. RAF kinase inhibitor-independent constitutive activation of Yes-associated protein 1 promotes tumor progression in thyroid cancer. Oncogenesis 2013; 2:e55. [PMID: 23857250 PMCID: PMC3740284 DOI: 10.1038/oncsis.2013.12] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [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: 11/22/2012] [Revised: 04/20/2013] [Accepted: 04/26/2013] [Indexed: 12/16/2022] Open
Abstract
The transcription coactivator Yes-associated protein 1 (YAP1) is regulated by the Hippo tumor suppressor pathway. However, the role of YAP1 in thyroid cancer, which is frequently associated with the BRAFV600E mutation, remains unknown. This study aimed to investigate the role of YAP1 in thyroid cancer. YAP1 was overexpressed in papillary (PTC) and anaplastic thyroid cancer, and nuclear YAP1 was more frequently detected in BRAFV600E (+) PTC. In the thyroid cancer cell lines TPC-1 and HTH7, which do not have the BRAFV600E mutation, YAP1 was cytosolic and inactive at high cell densities. In contrast, YAP1 was retained in the nucleus and its target genes were expressed in the thyroid cancer cells 8505C and K1, which harbor the BRAFV600E mutation, regardless of cell density. Furthermore, the nuclear activation of YAP1 in 8505C was not inhibited by RAF or MEK inhibitor. In vitro experiments, YAP1 silencing or overexpression affected migratory capacities of 8505C and TPC-1 cells. YAP1 knockdown resulted in marked decrease of tumor volume, invasion and distant metastasis in orthotopic tumor xenograft mouse models using the 8505C thyroid cancer cell line. Taken together, YAP1 is involved in the tumor progression of thyroid cancer and YAP1-mediated effects might not be affected by the currently used RAF kinase inhibitors.
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Affiliation(s)
- S E Lee
- Department of Internal Medicine, Research Center for Endocrine and Metabolic Disease, Chungnam National University School of Medicine, Daejeon, Korea
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Lee SE, Kim JM, Jeong MK, Zouboulis CC, Lee SH. 11β-hydroxysteroid dehydrogenase type 1 is expressed in human sebaceous glands and regulates glucocorticoid-induced lipid synthesis and toll-like receptor 2 expression in SZ95 sebocytes. Br J Dermatol 2013; 168:47-55. [PMID: 22897663 DOI: 10.1111/bjd.12009] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
BACKGROUND Glucocorticoids (GCs) affect the pathophysiology of sebaceous glands, causing development or exacerbation of acne. The availability of GCs is regulated by isoenzymes of 11β-hydroxysteroid dehydrogenase (11βHSD) at tissue-specific levels. 11βHSD type 1 (HSD11β1) is a reductase, catalysing the conversion of cortisone to active cortisol, and is highly expressed in liver and adipose tissue. Recently, HSD11β1 was observed in human skin in keratinocytes and fibroblasts. OBJECTIVES To investigate the expression of HSD11β1 in sebaceous glands of normal and acne-involved skin, and to examine the role of HSD11β1 in GC-induced lipid synthesis and toll-like receptor 2 (TLR2) expression in sebocytes. METHODS Expression of HSD11β1 was examined by immunohistochemistry in acne lesional skin and normal skin of healthy volunteers. The cultured SZ95 sebocytes were treated with dexamethasone, and the lipid synthesis and mRNA levels of sterol regulatory element binding protein 1 (SREBP-1) and TLR2 were determined. Use of an HSD11β1 inhibitor and the small interference RNA (siRNA) approach were used to investigate the role of HSD11β1 on the GC regulation of sebocyte functions. RESULTS HSD11β1 was expressed in human sebaceous glands and upregulated in acne lesional skin. HSD11β1 mRNA was enhanced by dexamethasone and cytokines in SZ95 sebocytes. Dexamethasone enhanced lipid synthesis, partially through the transcriptional induction of SREBP-1, and also by increasing TLR2 mRNA levels. Inhibition of HSD11β1 by PF-915275 or siRNA significantly inhibited the GC-induced lipid synthesis and the mRNA expression of SREBP-1 and TLR2. CONCLUSIONS Our results indicate that HSD11β1 plays a key role in the modulation of GC action on sebocytes, including sebum production and TLR2-mediated inflammation, thereby influencing the pathogenesis of acne.
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Affiliation(s)
- S E Lee
- Department of Dermatology, CHA Bundang Medical Center, CHA University, 351, Yatap-dong, Bundang-gu, Seongnam 463-712, Korea
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Lee HY, Heo YT, Lee SE, Hwang KC, Lee HG, Choi SH, Kim NH. Short communication: retinoic acid plus prolactin to synergistically increase specific casein gene expression in MAC-T cells. J Dairy Sci 2013; 96:3835-9. [PMID: 23587393 DOI: 10.3168/jds.2012-5945] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2012] [Accepted: 02/26/2013] [Indexed: 11/19/2022]
Abstract
Mammary alveolar (MAC-T) cells, an established bovine mammary epithelial cell line, are frequently used to investigate differentiation. A lactogenic phenotype in these cells is induced by treatment with a combination of hydrocortisone, insulin, and prolactin (PRL). The effect of the vitamin A derivative retinoic acid (RA), which induces differentiation in many cells, has not been studied in MAC-T cells. The objective of this study was to evaluate the differentiation potential of RA (1 μM) in MAC-T cells and to examine the effect of combined treatment with RA (1 μM) and PRL (5 μg/mL). Although RA treatment alone inhibited MAC-T cell proliferation, co-treatment of RA with PRL increased cell growth compared with the control group (treated with 1 μg/mL hydrocortisone and 5 μg/mL insulin). The ratio of Bcl to Bax mRNA was decreased in the RA treatment compared with RA+PRL or control. Retinoic acid-induced differentiation of MAC-T cells was associated with an increase in the mRNA expression of αS1-casein (3.9-fold), αS2-casein (4.5-fold), and β-casein (4.4-fold) compared with the control group. Expression of αS1-casein, αS2-casein, and β-casein was increased 12.9-fold, 11.9-fold, and 19.3-fold, respectively, following treatment with RA and PRL combined compared with the control group. These results demonstrate that RA induces differentiation of MAC-T cells and acts synergistically with PRL to increase specific casein gene expression.
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Affiliation(s)
- H Y Lee
- Department of Animal Science, Chungbuk National University, Chungbuk 361-763, Republic of Korea
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Lee SE, Kang SH. Estimating the GIS-based soil loss and sediment delivery ratio to the sea for four major basins in South Korea. Water Sci Technol 2013; 68:124-133. [PMID: 23823548 DOI: 10.2166/wst.2013.194] [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: 06/02/2023]
Abstract
This paper describes a sediment delivery ratio (SDR) using the Geographic Information System (GIS)-based Revised Universal Soil Loss Equation (RUSLE), to calculate the soil loss and sediment rating curve (SRC) basis of measured data in the six basins of Four Rivers, South Korea. The data set for calculating SDR was prepared during 3 years from 2008 to 2010. Mean soil loss in the six basins of Four Rivers was 515-869 t km(-2) yr(-1) and mean specific sediment yield (SSY) was 20-208 t km(-2) yr(-1) with basin size. The SDR ranged from 0.03 to 0.33 in the six rivers. Most sediment flows in the monsoon period from June to September (mean Max.: >97%; mean Min.: >84%), but SDR is lower than those of similar continental river basins. This is due to environmental factors, for example rainfall characteristics and associated run-off, soil characteristics and cultivated patterns with increasing basin size. This research provides the first application of SDR based on the observed field data in South Korea.
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Affiliation(s)
- S E Lee
- Dept of Energy & Mineral Resources Eng., Kangwon National University 245-711, Samcheok city, Kangwon-do, Korea
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