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Chun EJ, Kim JK, Yang SY, Kim SS, Kim CW. Development of a nucleic acid-based lateral flow assay to diagnose ordinary scabies. J Eur Acad Dermatol Venereol 2021; 36:e282-e285. [PMID: 34758167 DOI: 10.1111/jdv.17810] [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] [Received: 07/02/2021] [Revised: 09/17/2021] [Accepted: 10/27/2021] [Indexed: 11/26/2022]
Affiliation(s)
- E J Chun
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - J K Kim
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - S Y Yang
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - S S Kim
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - C W Kim
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
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Togami K, Chung SS, Madan V, Booth CAG, Kenyon CM, Cabal-Hierro L, Taylor J, Kim SS, Griffin GK, Ghandi M, Li J, Li YY, Angelot-Delettre F, Biichle S, Seiler M, Buonamici S, Lovitch SB, Louissaint A, Morgan EA, Jardin F, Piccaluga PP, Weinstock DM, Hammerman PS, Yang H, Konopleva M, Pemmaraju N, Garnache-Ottou F, Abdel-Wahab O, Koeffler HP, Lane AA. Sex-biased ZRSR2 mutations in myeloid malignancies impair plasmacytoid dendritic cell activation and apoptosis. Cancer Discov 2021; 12:522-541. [PMID: 34615655 PMCID: PMC8831459 DOI: 10.1158/2159-8290.cd-20-1513] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Revised: 08/17/2021] [Accepted: 10/01/2021] [Indexed: 11/16/2022]
Abstract
Blastic plasmacytoid dendritic cell neoplasm (BPDCN) is an aggressive leukemia of plasmacytoid dendritic cells (pDCs). BPDCN occurs at least three times more frequently in men than women, but the reasons for this sex bias are unknown. Here, studying genomics of primary BPDCN and modeling disease-associated mutations, we link acquired alterations in RNA splicing to abnormal pDC development and inflammatory response through Toll-like receptors. Loss-of-function mutations in ZRSR2, an X chromosome gene encoding a splicing factor, are enriched in BPDCN and nearly all mutations occur in males. ZRSR2 mutation impairs pDC activation and apoptosis after inflammatory stimuli, associated with intron retention and inability to upregulate the transcription factor IRF7. In vivo, BPDCN-associated mutations promote pDC expansion and signatures of decreased activation. These data support a model in which male-biased mutations in hematopoietic progenitors alter pDC function and confer protection from apoptosis, which may impair immunity and predispose to leukemic transformation.
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Affiliation(s)
| | | | - Vikas Madan
- Cancer Science Institute of Singapore, National University of Singapore
| | | | | | | | - Justin Taylor
- Medicine/Hematology, Sylvester Comprehensive Cancer Center
| | | | | | | | - Jia Li
- National University of Singapore
| | - Yvonne Y Li
- Department of Medical Oncology, Dana-Farber Cancer Institute
| | | | | | | | | | | | | | | | | | - Pier Paolo Piccaluga
- Department of Experimental, Diagnostic, and Specialty Medicine, Bologna University
| | | | | | - Henry Yang
- Cancer Science Institute of Singapore, National University of Singapore
| | - Marina Konopleva
- Department of Leukemia, The University of Texas MD Anderson Cancer Center
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Chun EJ, Kim JK, Yang SY, Kim SS, Kim CW. Changes in the incidence of contagious infectious skin diseases after the COVID-19 outbreak. J Eur Acad Dermatol Venereol 2021; 36:e3-e4. [PMID: 34487408 PMCID: PMC8657312 DOI: 10.1111/jdv.17640] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 09/02/2021] [Indexed: 11/26/2022]
Affiliation(s)
- E J Chun
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - J K Kim
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - S Y Yang
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - S S Kim
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - C W Kim
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
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Tomchaney M, Contoli M, Mayo J, Baraldo S, Li S, Cabel CR, Bull DA, Lick S, Malo J, Knoper S, Kim SS, Tram J, Rojas-Quintero J, Kraft M, Ledford JG, Tesfaigzi Y, Martinez FD, Thorne CA, Kheradmand F, Campos SK, Papi A, Polverino F. Paradoxical effects of cigarette smoke and COPD on SARS-CoV-2 infection and disease. BMC Pulm Med 2021; 21:275. [PMID: 34425811 PMCID: PMC8381712 DOI: 10.1186/s12890-021-01639-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 08/11/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND How cigarette smoke (CS) and chronic obstructive pulmonary disease (COPD) affect severe acute respiratory syndrome coronavirus 2 (SARS-CoV2) infection and severity is controversial. We investigated the effects of COPD and CS on the expression of SARS-CoV-2 entry receptor ACE2 in vivo in COPD patients and controls and in CS-exposed mice, and the effects of CS on SARS-CoV-2 infection in human bronchial epithelial cells in vitro. METHODS We quantified: (1) pulmonary ACE2 protein levels by immunostaining and ELISA, and both ACE2 and/or TMPRSS2 mRNA levels by RT-qPCR in two independent human cohorts; and (2) pulmonary ACE2 protein levels by immunostaining and ELISA in C57BL/6 WT mice exposed to air or CS for up to 6 months. The effects of CS exposure on SARS-CoV-2 infection were evaluated after in vitro infection of Calu-3 cells and differentiated human bronchial epithelial cells (HBECs), respectively. RESULTS ACE2 protein and mRNA levels were decreased in peripheral airways from COPD patients versus controls but similar in central airways. Mice exposed to CS had decreased ACE2 protein levels in their bronchial and alveolar epithelia versus air-exposed mice. CS treatment decreased viral replication in Calu-3 cells, as determined by immunofluorescence staining for replicative double-stranded RNA (dsRNA) and western blot for viral N protein. Acute CS exposure decreased in vitro SARS-CoV-2 replication in HBECs, as determined by plaque assay and RT-qPCR. CONCLUSIONS ACE2 levels were decreased in both bronchial and alveolar epithelial cells from COPD patients versus controls, and from CS-exposed versus air-exposed mice. CS-pre-exposure potently inhibited SARS-CoV-2 replication in vitro. These findings urge to investigate further the controversial effects of CS and COPD on SARS-CoV-2 infection.
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Affiliation(s)
- M Tomchaney
- Asthma and Airway Disease Research Center, University of Arizona, Tucson, AZ, 85719, USA
| | - M Contoli
- Respiratory Unit, Department of Translational Medicine, University of Ferrara, Ferrara, Italy
| | - J Mayo
- Asthma and Airway Disease Research Center, University of Arizona, Tucson, AZ, 85719, USA
| | - S Baraldo
- Department of Cardiological, Thoracic, Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - S Li
- Department of Immunobiology, University of Arizona College of Medicine, Tucson, USA
| | - C R Cabel
- Department of Cellular and Molecular Medicine, University of Arizona Cancer Center, Tucson, USA
| | - D A Bull
- Thoracic Surgery, University of Arizona, Tucson, USA
| | - S Lick
- Thoracic Surgery, University of Arizona, Tucson, USA
| | - J Malo
- Thoracic Surgery, University of Arizona, Tucson, USA
| | - S Knoper
- Thoracic Surgery, University of Arizona, Tucson, USA
| | - S S Kim
- Thoracic Surgery, Northwester University, Chicago, IL, USA
| | - J Tram
- Asthma and Airway Disease Research Center, University of Arizona, Tucson, AZ, 85719, USA
| | - J Rojas-Quintero
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - M Kraft
- Asthma and Airway Disease Research Center, University of Arizona, Tucson, AZ, 85719, USA
| | - J G Ledford
- Asthma and Airway Disease Research Center, University of Arizona, Tucson, AZ, 85719, USA
| | - Y Tesfaigzi
- Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - F D Martinez
- Asthma and Airway Disease Research Center, University of Arizona, Tucson, AZ, 85719, USA
| | - C A Thorne
- Department of Cellular and Molecular Medicine, University of Arizona Cancer Center, Tucson, USA
| | | | - S K Campos
- Department of Immunobiology, University of Arizona College of Medicine, Tucson, USA
- BIO5 Institute, University of Arizona, Tucson, USA
| | - A Papi
- Respiratory Unit, Department of Translational Medicine, University of Ferrara, Ferrara, Italy
| | - F Polverino
- Asthma and Airway Disease Research Center, University of Arizona, Tucson, AZ, 85719, USA.
- BIO5 Institute, University of Arizona, Tucson, USA.
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5
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Tomchaney M, Contoli M, Mayo J, Baraldo S, Shuaizhi L, Cabel CR, Bull DA, Lick S, Malo J, Knoper S, Kim SS, Tram J, Rojas-Quintero J, Kraft M, Ledford J, Tesfaigzi Y, Martinez FD, Thorne CA, Kheradmand F, Campos SK, Papi A, Polverino F. Paradoxical effects of cigarette smoke and COPD on SARS-CoV2 infection and disease. bioRxiv 2020. [PMID: 33330864 DOI: 10.1101/2020.12.07.413252] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Introduction How cigarette smoke (CS) and chronic obstructive pulmonary disease (COPD) affect severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and severity is controversial. We investigated the protein and mRNA expression of SARS-CoV-2 entry receptor ACE2 and proteinase TMPRSS2 in lungs from COPD patients and controls, and lung tissue from mice exposed acutely and chronically to CS. Also, we investigated the effects of CS exposure on SARS-CoV-2 infection in human bronchial epithelial cells. Methods In Cohort 1, ACE2-positive cells were quantified by immunostaining in FFPE sections from both central and peripheral airways. In Cohort 2, we quantified pulmonary ACE2 protein levels by immunostaining and ELISA, and both ACE2 and TMPRSS2 mRNA levels by RT-qPCR. In C57BL/6 WT mice exposed to air or CS for up to 6 months, pulmonary ACE2 protein levels were quantified by triple immunofluorescence staining and ELISA. The effects of CS exposure on SARS-CoV-2 infection were evaluated after 72hr in vitro infection of Calu-3 cells. After SARS-CoV-2 infection, the cells were fixed for IF staining with dsRNA-specific J2 monoclonal Ab, and cell lysates were harvested for WB of viral nucleocapsid (N) protein. Supernatants (SN) and cytoplasmic lysates were obtained to measure ACE2 levels by ELISA. Results In both human cohorts, ACE2 protein and mRNA levels were decreased in peripheral airways from COPD patients versus both smoker and NS controls, but similar in central airways. TMPRSS2 levels were similar across groups. Mice exposed to CS had decreased ACE2 protein levels in their bronchial and alveolar epithelia versus air-exposed mice exposed to 3 and 6 months of CS. In Calu3 cells in vitro, CS-treatment abrogated infection to levels below the limit of detection. Similar results were seen with WB for viral N protein, showing peak viral protein synthesis at 72hr. Conclusions ACE2 levels were decreased in both bronchial and alveolar epithelial cells from uninfected COPD patients versus controls, and from CS-exposed versus air-exposed mice. CS-pre-treatment did not affect ACE2 levels but potently inhibited SARS-CoV-2 replication in this in vitro model. These findings urge to further investigate the controversial effects of CS and COPD on SARS-CoV2 infection.
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Kim JK, Chun EJ, Yang SY, Kim KS, Kim SS, Kim CW. Development and efficacy of a nested real-time quantitative polymerase chain reaction to identify the cytochrome c oxidase subunit 1 gene of Sarcoptes scabiei var. hominis for diagnosis and monitoring of ordinary scabies. Br J Dermatol 2020; 183:1116-1117. [PMID: 32594512 DOI: 10.1111/bjd.19340] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Revised: 06/17/2020] [Accepted: 06/20/2020] [Indexed: 11/28/2022]
Affiliation(s)
- J K Kim
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - E J Chun
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - S Y Yang
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - K S Kim
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - S S Kim
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - C W Kim
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
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Park JW, Kim SS, Lee JH, Park JH. Feasibility of Reduced Radiation Dose and Iodine Load in Lower Extremity Computed Tomography Angiography. Hong Kong Journal of Radiology 2019. [DOI: 10.12809/hkjr1916920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- JW Park
- Department of Radiology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - SS Kim
- Department of Radiology, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - JH Lee
- Division of Cardiology, Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - JH Park
- Division of Cardiology, Department of Internal Medicine, Chungnam National University Hospital, Chungnam National University School of Medicine, Daejeon, Republic of Korea
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Janssen QP, Buettner S, Suker M, Beumer BR, Addeo P, Bachellier P, Bahary N, Bekaii-Saab T, Bali MA, Besselink MG, Boone BA, Chau I, Clarke S, Dillhoff M, El-Rayes BF, Frakes JM, Grose D, Hosein PJ, Jamieson NB, Javed AA, Khan K, Kim KP, Kim SC, Kim SS, Ko AH, Lacy J, Margonis GA, McCarter MD, McKay CJ, Mellon EA, Moorcraft SY, Okada KI, Paniccia A, Parikh PJ, Peters NA, Rabl H, Samra J, Tinchon C, van Tienhoven G, van Veldhuisen E, Wang-Gillam A, Weiss MJ, Wilmink JW, Yamaue H, Homs MYV, van Eijck CHJ, Katz MHG, Groot Koerkamp B. Neoadjuvant FOLFIRINOX in Patients With Borderline Resectable Pancreatic Cancer: A Systematic Review and Patient-Level Meta-Analysis. J Natl Cancer Inst 2019; 111:782-794. [PMID: 31086963 PMCID: PMC6695305 DOI: 10.1093/jnci/djz073] [Citation(s) in RCA: 191] [Impact Index Per Article: 38.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 12/19/2018] [Accepted: 04/22/2019] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND FOLFIRINOX is a standard treatment for metastatic pancreatic cancer patients. The effectiveness of neoadjuvant FOLFIRINOX in patients with borderline resectable pancreatic cancer (BRPC) remains debated. METHODS We performed a systematic review and patient-level meta-analysis on neoadjuvant FOLFIRINOX in patients with BRPC. Studies with BRPC patients who received FOLFIRINOX as first-line neoadjuvant treatment were included. The primary endpoint was overall survival (OS), and secondary endpoints were progression-free survival, resection rate, R0 resection rate, and grade III-IV adverse events. Patient-level survival outcomes were obtained from authors of the included studies and analyzed using the Kaplan-Meier method. RESULTS We included 24 studies (8 prospective, 16 retrospective), comprising 313 (38.1%) BRPC patients treated with FOLFIRINOX. Most studies (n = 20) presented intention-to-treat results. The median number of administered neoadjuvant FOLFIRINOX cycles ranged from 4 to 9. The resection rate was 67.8% (95% confidence interval [CI] = 60.1% to 74.6%), and the R0-resection rate was 83.9% (95% CI = 76.8% to 89.1%). The median OS varied from 11.0 to 34.2 months across studies. Patient-level survival data were obtained for 20 studies representing 283 BRPC patients. The patient-level median OS was 22.2 months (95% CI = 18.8 to 25.6 months), and patient-level median progression-free survival was 18.0 months (95% CI = 14.5 to 21.5 months). Pooled event rates for grade III-IV adverse events were highest for neutropenia (17.5 per 100 patients, 95% CI = 10.3% to 28.3%), diarrhea (11.1 per 100 patients, 95% CI = 8.6 to 14.3), and fatigue (10.8 per 100 patients, 95% CI = 8.1 to 14.2). No deaths were attributed to FOLFIRINOX. CONCLUSIONS This patient-level meta-analysis of BRPC patients treated with neoadjuvant FOLFIRINOX showed a favorable median OS, resection rate, and R0-resection rate. These results need to be assessed in a randomized trial.
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Affiliation(s)
| | - Stefan Buettner
- See the Notes section for the full list of authors’ affiliations
| | - Mustafa Suker
- See the Notes section for the full list of authors’ affiliations
| | - Berend R Beumer
- See the Notes section for the full list of authors’ affiliations
| | - Pietro Addeo
- See the Notes section for the full list of authors’ affiliations
| | | | - Nathan Bahary
- See the Notes section for the full list of authors’ affiliations
| | | | - Maria A Bali
- See the Notes section for the full list of authors’ affiliations
| | - Marc G Besselink
- See the Notes section for the full list of authors’ affiliations
| | - Brian A Boone
- See the Notes section for the full list of authors’ affiliations
| | - Ian Chau
- See the Notes section for the full list of authors’ affiliations
| | - Stephen Clarke
- See the Notes section for the full list of authors’ affiliations
| | - Mary Dillhoff
- See the Notes section for the full list of authors’ affiliations
| | | | - Jessica M Frakes
- See the Notes section for the full list of authors’ affiliations
| | - Derek Grose
- See the Notes section for the full list of authors’ affiliations
| | - Peter J Hosein
- See the Notes section for the full list of authors’ affiliations
| | - Nigel B Jamieson
- See the Notes section for the full list of authors’ affiliations
| | - Ammar A Javed
- See the Notes section for the full list of authors’ affiliations
| | - Khurum Khan
- See the Notes section for the full list of authors’ affiliations
| | - Kyu-Pyo Kim
- See the Notes section for the full list of authors’ affiliations
| | - Song Cheol Kim
- See the Notes section for the full list of authors’ affiliations
| | - Sunhee S Kim
- See the Notes section for the full list of authors’ affiliations
| | - Andrew H Ko
- See the Notes section for the full list of authors’ affiliations
| | - Jill Lacy
- See the Notes section for the full list of authors’ affiliations
| | | | | | - Colin J McKay
- See the Notes section for the full list of authors’ affiliations
| | - Eric A Mellon
- See the Notes section for the full list of authors’ affiliations
| | | | - Ken-Ichi Okada
- See the Notes section for the full list of authors’ affiliations
| | | | - Parag J Parikh
- See the Notes section for the full list of authors’ affiliations
| | - Niek A Peters
- See the Notes section for the full list of authors’ affiliations
| | - Hans Rabl
- See the Notes section for the full list of authors’ affiliations
| | - Jaswinder Samra
- See the Notes section for the full list of authors’ affiliations
| | | | | | | | | | - Matthew J Weiss
- See the Notes section for the full list of authors’ affiliations
| | | | - Hiroki Yamaue
- See the Notes section for the full list of authors’ affiliations
| | | | | | - Matthew H G Katz
- See the Notes section for the full list of authors’ affiliations
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Kim SS, Jang HJ, Oh MY. Quercetin Enhances the Function and Reduces Apoptosis of Mouse Islets. Transplant Proc 2019; 51:1451-1457. [PMID: 31079939 DOI: 10.1016/j.transproceed.2019.03.022] [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] [Received: 02/20/2019] [Accepted: 03/10/2019] [Indexed: 11/20/2022]
Abstract
BACKGROUND Quercetin (QE) is an antioxidant, anti-inflammatory, flavonoid compound. It was shown that islets are susceptible to oxidative stress due to their inherent low antioxidant capacity. In the present study, we investigated whether treatment of mouse islets with QE could enhance their function before transplantation. METHODS Balb/c mouse islets were treated with various concentrations of QE and their viability, function, and nitric oxide (NO) and the expression of inducible NO synthase (iNOS) were determined before and after cytokine treatment. The expression of antioxidant genes was determined. Apoptosis and apoptosis-associated gene expression was measured using INS-1 cells with or without QE treatment before and after cytokine treatment. RESULTS The QE-treated islets and INS-1 cells showed higher cell function compared to untreated control. The expression of heme oxygenase-1, manganese-dependent superoxide dismutase, and B-cell lymphoma-2 (Bcl-2) were enhanced, and the expression of NO, iNOS, and Bcl-2-associated X protein were reduced before and after cytokine treatment. CONCLUSIONS Our results show that QE could enhance the viability and reduce apoptosis of mouse islets and improve their function before transplantation.
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Affiliation(s)
- S S Kim
- Department of Anesthesia and Pain Medicine, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - H J Jang
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea.
| | - M Y Oh
- Medical Research Institute, Gangneung Asan Hospital, Gangneung, South Korea
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Kim H, Park W, Choi DH, Ahn SJ, Kim SS, Kim ES, Lee JH, Lee KC, Kim JH, Lee HS, Kim JH, Kim MY, Park HJ, Kim K, Song SH, Kwon J, Lee IJ, Kim TH, Kim TG, Chang AR, Cho O, Jeong BK, Ha B, Lee J, Ki Y. Abstract OT2-04-02: A phase 3 study of post-lumpectomy radiotherapy to whole breast + regional lymph nodes vs whole breast alone for patients with pN1 breast cancer treated with taxane-based chemotherapy (KROG 1701): Trial in progress. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-ot2-04-02] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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
In patients with early stage breast cancer, regional nodal irradiation (RNI) is added to whole breast irradiation (WBI) in order to control microscopic regional disease and to prevent systemic spread of cancer. According to recent randomized trials (MA.20 and EORTC 22922-10925), prophylactic RNI was associated with improvement in disease-free survival (DFS) in the patients with high-risk node negative or pN1 breast cancer. However, systemic agents now known to improve loco-regional control, such as taxane or endocrine therapy, were prescribed to a small percentage of patients in the studies. The benefit of RNI found in the previous studies might be attributed to incorporation of less effective systemic treatments. The impact of prophylactic RNI in pN1 breast cancer should be evaluated in the patients receiving modern systemic treatment. The current study was conducted to compare the effect of post-lumpectomy WBI vs WBI plus RNI on DFS in pN1 breast cancer patients who received adjuvant taxane-based chemotherapy.
Methods
This study is a multicenter, phase 3, randomized controlled non-inferiority trial (NCT03269981). Eligibility criteria are ≥ 20 years female; pathologically proven invasive carcinoma of the breast; one to three positive axillary lymph nodes (pN1) in pathologic specimen; receiving breast-conserving surgery followed by taxane-based chemotherapy; having adjuvant endocrine therapy or anti-HER2 treatment according to molecular subtype of tumor. Patients are randomly assigned in a 1:1 ratio to receive WBI or WBI plus RNI. Patient randomization was stratified by molecular subtype of tumor (i.e. luminal A/luminal B/luminal HER2/HER2-enriched/triple-negative) and methods of axillary management (i.e. sentinel lymph node biopsy/axillary lymph node dissection). The primary outcome is DFS. The secondary outcomes include DFS according to molecular subtype, treatment-related toxicity, and patient's quality of life per EORTC QLQ-C30 and QLQ-BR23. Patients will be followed for survival and disease recurrence for seven years. A total of 1,926 patients are planned to be enrolled, with recruitment initiated in April 2017. As of June 2018, a total of 236 patients were enrolled.
Acknowledgement
This study was supported by a grant from the National R&D Program for Cancer Control, Ministry of Health & Welfare, Republic of Korea (grant number: HA17C0043010018).
Citation Format: Kim H, Park W, Choi DH, Ahn SJ, Kim SS, Kim ES, Lee JH, Lee KC, Kim JH, Lee H-S, Kim JH, Kim MY, Park HJ, Kim K, Song SH, Kwon J, Lee IJ, Kim TH, Kim TG, Chang AR, Cho O, Jeong BK, Ha B, Lee J, Ki Y. A phase 3 study of post-lumpectomy radiotherapy to whole breast + regional lymph nodes vs whole breast alone for patients with pN1 breast cancer treated with taxane-based chemotherapy (KROG 1701): Trial in progress [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 OT2-04-02.
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Affiliation(s)
- H Kim
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - W Park
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - DH Choi
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - SJ Ahn
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - SS Kim
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - ES Kim
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - JH Lee
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - KC Lee
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - JH Kim
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - H-S Lee
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - JH Kim
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - MY Kim
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - HJ Park
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - K Kim
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - SH Song
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - J Kwon
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - IJ Lee
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - TH Kim
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - TG Kim
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - AR Chang
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - O Cho
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - BK Jeong
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - B Ha
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - J Lee
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
| | - Y Ki
- Samsung Medical Center, Seoul, Republic of Korea; Chonnam National University Medical School, Gwangju, Republic of Korea; Asan Medical Center, Seoul, Republic of Korea; Soonchunhyang University College of Medicine, Cheonan, Republic of Korea; St. Vincent's Hospital, The Catholic University of Korea College of Medicine, Suwon, Republic of Korea; Gachon University Gil Medical Center, Incheon, Republic of Korea; Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Republic of Korea; Dong-A University Hospital, Busan, Republic of Korea; Seoul National University Hospital, Seoul, Republic of Korea; Kyungpook National University Chilgok Hospital, Daegu, Republic of Korea; Hanyang University College of Medicine, Seoul, Republic of Korea; Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea; Kangwon National University School of Medicine, Chuncheon, Republic of Korea; Chungnam National University College of Medicine, Daejeon, Republic of Korea; Gangnam Severance Hospital, Yonsei Univer
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Kim K, Jeong Y, Shin KH, Kim JH, Ahn SD, Kim SS, Suh CO, Kim YB, Choi DH, Park W, Cha J, Chun M, Lee DS, Lee SY, Kim JH, Park HJ. Abstract P3-12-12: Impact of regional nodal irradiation for breast cancer patients with supraclavicular and/or internal mammary lymph node involvement: A multicenter, retrospective study (KROG 16-14). Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p3-12-12] [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
Purpose: To evaluate the treatment outcomes of radiotherapy (RT) for breast cancer with ipsilateral supraclavicular (SCL) and/or internal mammary (IMN) lymph node involvement.
Methods: A total of 353 patients from 11 institutions were included. One hundred and thirty-six patients had SCL involvement, 148 had IMN involvement, and 69 had both. All patients received neoadjvant systemic therapy followed by breast conserving surgery or mastectomy, and postoperative RT to whole breast/chest wall. As for regional lymph node irradiation, SCL RT was given to 344 patients, and IMN RT to 236 patients. The median RT dose was 50.4 Gy.
Results: The median follow-up duration was 61 months (range, 7-173). In-field progression was present in SCL (n=20) and/or IMN (n=7). The 5-year disease-free survival (DFS) and overall survival rates were 57.8% and 75.1%, respectively. On multivariate analysis, both SCL/IMN involvement, number of axillary lymph node ≥4, triple negative subtype, and mastectomy were significant adverse prognosticators for DFS (p = 0.022, 0.001, 0.001, and 0.004, respectively). Regarding the impact of regional nodal irradiation, SCL RT dose ≥54 Gy was not associated with DFS (5-yr rate, 52.9% vs. 50.9%, p = 0.696) in SCL-involved patients, and the receipt of IMN RT was not associated with DFS (5-yr rate, 56.1% vs. 78.1%, p = 0.099) in IMN-involved patients.
Conclusion: Neoadjuvant chemotherapy followed by surgery and postoperative RT achieved an acceptable in-field regional control rate in patients with SCL and/or IMN involvement. However, a higher RT dose to SCL or IMN RT was not associated with the improved DFS in these patients.
Citation Format: Kim K, Jeong Y, Shin KH, Kim JH, Ahn SD, Kim SS, Suh C-O, Kim YB, Choi DH, Park W, Cha J, Chun M, Lee DS, Lee SY, Kim JH, Park HJ. Impact of regional nodal irradiation for breast cancer patients with supraclavicular and/or internal mammary lymph node involvement: A multicenter, retrospective study (KROG 16-14) [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 P3-12-12.
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Affiliation(s)
- K Kim
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - Y Jeong
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - KH Shin
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - JH Kim
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - SD Ahn
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - SS Kim
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - C-O Suh
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - YB Kim
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - DH Choi
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - W Park
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - J Cha
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - M Chun
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - DS Lee
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - SY Lee
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - JH Kim
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
| | - HJ Park
- Ewha Womans University College of Medicine, Seoul, Korea; Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea; Seoul National University College of Medicine, Seoul, Korea; Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, Korea; Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea; Wonju Severance Christian Hospital, Wonju, Korea; Ajou University School of Medicine, Suwon, Korea; Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea; Chonbuk National University Hospital, Jeonju, Korea; Keimyung University Dongsan Medical Center, Keimyung University School of Medicine, Daegu, Korea; Hanyang University College of Medicine, Seoul, Korea
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12
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Hahm JE, Kim CW, Kim SS. The efficacy of a nested polymerase chain reaction in detecting the cytochrome c oxidase subunit 1 gene of Sarcoptes scabiei var. hominis for diagnosing scabies. Br J Dermatol 2018; 179:889-895. [PMID: 29624634 DOI: 10.1111/bjd.16657] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/22/2018] [Indexed: 11/26/2022]
Abstract
BACKGROUND A widespread scabies infestation, associated with long-term residence in nursing homes, is becoming an issue in high-income countries. Mineral oil examination is regarded as the gold standard in diagnosing scabies, but the sensitivity of this method is generally low - approximately 50%. Molecular techniques may contribute to enhancing the sensitivity of current tests for laboratory diagnosis of human scabies. OBJECTIVES To develop new primers for a nested polymerase chain reaction (PCR) for the cytochrome c oxidase subunit 1 (cox1) gene of Sarcoptes scabiei var. hominis to increase the sensitivity of a previously developed conventional PCR. METHODS Patients with clinically suspected scabies underwent dermoscopy-guided skin scraping with microscopic examination. The diagnosis was positive for scabies when mites or eggs were found under the microscope, and patients were then designated as 'microscopy positive'. Patients who presented with negative microscopic results were placed in the 'microscopy-negative' group. Skin scrapings were collected from both groups for PCR. RESULTS Of the total 63 samples, 28 were microscopy positive and 35 were negative with no differences in sex and age between the two groups. All microscopically proven cases of scabies were positive using the cox1 nested PCR. Among microscopy-negative samples, S. scabieiDNA was detected in nine. If sensitivity of the cox1 nested PCR is considered 100% [95% confidence interval (CI) 90·5-100], then sensitivity of microscopy is 75·7% (95% CI 58·8-88·2; P = 0·004). CONCLUSIONS Nested PCR can be successfully used as an alternative method for diagnosing suspected scabies. Therefore, infection control measures and treatments can be initiated before significant transmission occurs, minimizing the risk of outbreaks.
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Affiliation(s)
- J E Hahm
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - C W Kim
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - S S Kim
- Department of Dermatology, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea
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13
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Adams RJ, Kim SS, Mollenkopf DF, Mathys DA, Schuenemann GM, Daniels JB, Wittum TE. Antimicrobial-resistant Enterobacteriaceae recovered from companion animal and livestock environments. Zoonoses Public Health 2018; 65:519-527. [PMID: 29575700 DOI: 10.1111/zph.12462] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Indexed: 11/30/2022]
Abstract
Antimicrobial-resistant bacteria represent an important concern impacting both veterinary medicine and public health. The rising prevalence of extended-spectrum beta-lactamase (ESBL), AmpC beta-lactamase, carbapenemase (CRE) and fluoroquinolone-resistant Enterobacteriaceae continually decreases the efficiency of clinically important antibiotics. Moreover, the potential for zoonotic transmission of antibiotic-resistant enteric bacteria increases the risk to public health. Our objective was to estimate the prevalence of specific antibiotic-resistant bacteria on human contact surfaces in various animal environments. Environmental surface samples were collected from companion animal shelters, private equine facilities, dairy farms, livestock auction markets and livestock areas of county fairs using electrostatic cloths. Samples were screened for Enterobacteriaceae expressing AmpC, ESBL, CRE or fluoroquinolone resistance using selective media. Livestock auction markets and county fairs had higher levels of bacteria expressing both cephalosporin and fluoroquinolone resistance than did equine, dairy, and companion animal environments. Equine facilities harboured more bacteria expressing cephalosporin resistance than companion animal shelters, but less fluoroquinolone resistance. The regular use of extended-spectrum cephalosporins in livestock populations could account for the increased levels of cephalosporin resistance in livestock environments compared to companion animal and equine facilities. Human surfaces, as well as shared human and animal surfaces, were contaminated with resistant bacteria regardless of species environment. Detecting these bacteria on common human contact surfaces suggests that the environment can serve as a reservoir for the zoonotic transmission of antibiotic-resistant bacteria and resistance genes. Identifying interventions to lower the prevalence of antibiotic-resistant bacteria in animal environments will protect both animal and public health.
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Affiliation(s)
- R J Adams
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - S S Kim
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - D F Mollenkopf
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - D A Mathys
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - G M Schuenemann
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - J B Daniels
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - T E Wittum
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
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14
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Kim SS, Jang HJ, Oh MY, Lee JH, Kang KS. Tetrahydrocurcumin Enhances Islet Cell Function and Attenuates Apoptosis in Mouse Islets. Transplant Proc 2018; 50:2847-2853. [PMID: 30401410 DOI: 10.1016/j.transproceed.2018.03.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 03/06/2018] [Indexed: 01/27/2023]
Abstract
BACKGROUND The transplantation of isolated pancreatic islets is a promising treatment for diabetes. Curcumin has been used for its pharmacologic effects, such as antidiabetic and anti-inflammatory activities. Tetrahydrocurcumin (THC), one of the major metabolites of curcumin, has been reported to have antioxidant and anti-inflammatory activities. This study examines the hypothesis that preoperative THC treatment can attenuate ischemic damage and apoptosis before islet transplantation. METHODS Islets isolated from Balb/c mice were randomly divided into 2 groups and cultured in medium supplemented with or without THC. In vitro islet viability and function were assessed. After treatment with a cytokine cocktail consisting of tumor necrosis factor-α, interferon-β, and interleukin-1β, islet cell viability, function, and apoptotic status were determined. Proteins related to apoptosis were analyzed using INS-1 cell after streptozocin treatment. RESULTS There was no difference in cell viability between the 2 groups. Islets cultured in the medium supplemented with THC showed 1.3-fold higher glucose-induced insulin secretion than the islets cultured in the medium without THC. After treatment with a cytokine cocktail, glucose-induced insulin release, and NO of the islets were significantly improved in THC-treated islets compared with islets not treated with THC. Apoptosis was significantly decreased, and B-cell lymphoma-2 was elevated in the THC-treated group. The streptozocin-treated INS-1 cell produced significantly higher levels of and B-cell lymphoma-2-associated X protein, caspase-3, and caspase-9 than INS-1 treated with THC. CONCLUSIONS These results suggest that preoperative THC administration enhances islet function before transplantation and attenuates the cytokine-induced damage associated with apoptosis.
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Affiliation(s)
- S S Kim
- Department of Anesthesia and Pain Medicine, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, Republic of Korea
| | - H J Jang
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, Republic of Korea.
| | - M Y Oh
- Medical Research Institute, Gangneung Asan Hospital, Gangneung, Republic of Korea
| | - J H Lee
- College of Korean Medicine, Gachon University, Seongnam, Republic of Korea
| | - K S Kang
- College of Korean Medicine, Gachon University, Seongnam, Republic of Korea
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Kim MJ, Kim SS, Park KJ, An HJ, Choi YH, Lee NH, Hyun CG. Methyl jasmonate inhibits lipopolysaccharide-induced inflammatory cytokine production via mitogen-activated protein kinase and nuclear factor-κB pathways in RAW 264.7 cells. Pharmazie 2018; 71:540-543. [PMID: 29441852 DOI: 10.1691/ph.2016.6647] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Methyl jasmonate is an important signaling molecule involved in plant defense as well as in the regulation of plant growth and development. Despite its various functions in plants, its effects on animal cells have not been widely studied and no report has been issued on the molecular aspects of its anti-inflammatory effect. In the present study, we investigated the in vitro anti-inflammatory properties of methyl jasmonate in lipopolysaccharide (LPS)-stimulated RAW 264.7 cells. Methyl jasmonate treatment effectively inhibited LPS-induced production of pro-inflammatory mediators (nitric oxide and prostaglandin E2) and cytokines (tumor necrosis factor-α, interleukin (IL)-1β, and IL-6) in a concentration-dependent manner. Furthermore, it attenuated the LPS-induced activation of nuclear factor-κB (NF-κB) by suppressing the degradation of the inhibitor of κB-α (IκB-α). Additionally, methyl jasmonate dose-dependently blocked the phosphorylation of mitogen-activated protein kinases (MAPKs), i.e., p38 kinase, extracellular signal-regulated kinase (ERK) 1/2, and c-Jun N-terminal kinase (JNK), in these cells. These results suggest that methyl jasmonate attenuated the LPS-induced release of pro-inflammatory mediators and cytokines by suppressing the activation of MAPK (JNK, ERK and p38) and NF-κB signaling. This study not only demonstrated that methyl jasmonate exerts anti-inflammatory activities in macrophages but also revealed its potential as a candidate for the treatment of various inflammation-associated diseases.
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Kwon SC, Patel S, Choy C, Zanowiak J, Rideout C, Yi S, Wyatt L, Taher MD, Garcia-Dia MJ, Kim SS, Denholm TK, Kavathe R, Islam NS. Implementing health promotion activities using community-engaged approaches in Asian American faith-based organizations in New York City and New Jersey. Transl Behav Med 2018; 7:444-466. [PMID: 28547738 DOI: 10.1007/s13142-017-0506-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [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: 12/19/2022] Open
Abstract
Faith-based organizations (FBOs) (e.g., churches, mosques, and gurdwaras) can play a vital role in health promotion. The Racial and Ethnic Approaches to Community Health for Asian Americans (REACH FAR) Project is implementing a multi-level and evidence-based health promotion and hypertension (HTN) control program in faith-based organizations serving Asian American (AA) communities (Bangladeshi, Filipino, Korean, Asian Indian) across multiple denominations (Christian, Muslim, and Sikh) in New York/New Jersey (NY/NJ). This paper presents baseline results and describes the cultural adaptation and implementation process of the REACH FAR program across diverse FBOs and religious denominations serving AA subgroups. Working with 12 FBOs, informed by implementation research and guided by a cultural adaptation framework and community-engaged approaches, REACH FAR strategies included (1) implementing healthy food policies for communal meals and (2) delivering a culturally-linguistically adapted HTN management coaching program. Using the Ecological Validity Model (EVM), the program was culturally adapted across congregation and faith settings. Baseline measures include (i) Congregant surveys assessing social norms and diet (n = 946), (ii) HTN participant program surveys (n = 725), (iii) FBO environmental strategy checklists (n = 13), and (iv) community partner in-depth interviews assessing project feasibility (n = 5). We describe the adaptation process and baseline assessments of FBOs. In year 1, we reached 3790 (nutritional strategies) and 725 (HTN program) via AA FBO sites. Most AA FBOs lack nutrition policies and present prime opportunities for evidence-based multi-level interventions. REACH FAR presents a promising health promotion implementation program that may result in significant community reach.
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Affiliation(s)
- S C Kwon
- Department of Population Health, NYU School of Medicine, 550 First Avenue, VZN, 8th Floor, New York, NY, USA
| | - S Patel
- Department of Population Health, NYU School of Medicine, 550 First Avenue, VZN, 8th Floor, New York, NY, USA.
| | - C Choy
- Department of Population Health, NYU School of Medicine, 550 First Avenue, VZN, 8th Floor, New York, NY, USA
| | - J Zanowiak
- Department of Population Health, NYU School of Medicine, 550 First Avenue, VZN, 8th Floor, New York, NY, USA
| | - C Rideout
- Department of Population Health, NYU School of Medicine, 550 First Avenue, VZN, 8th Floor, New York, NY, USA
| | - S Yi
- Department of Population Health, NYU School of Medicine, 550 First Avenue, VZN, 8th Floor, New York, NY, USA
| | - L Wyatt
- Department of Population Health, NYU School of Medicine, 550 First Avenue, VZN, 8th Floor, New York, NY, USA
| | - M D Taher
- Department of Population Health, NYU School of Medicine, 550 First Avenue, VZN, 8th Floor, New York, NY, USA
| | | | - S S Kim
- Korean Community Services of Metropolitan NY, Inc., New York, NY, USA
| | - T K Denholm
- Korean Community Services of Metropolitan NY, Inc., New York, NY, USA
| | | | - N S Islam
- Department of Population Health, NYU School of Medicine, 550 First Avenue, VZN, 8th Floor, New York, NY, USA
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Rojas WY, Winter AD, Grote J, Kim SS, Naik RR, Williams AD, Weiland C, Principe E, Fischer DA, Banerjee S, Prendergast D, Campo EM. Strain and Bond Length Dynamics upon Growth and Transfer of Graphene by NEXAFS Spectroscopy from First-Principles and Experiment. Langmuir 2018; 34:1783-1794. [PMID: 29286662 DOI: 10.1021/acs.langmuir.7b03260] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
As the quest toward novel materials proceeds, improved characterization technologies are needed. In particular, the atomic thickness in graphene and other 2D materials renders some conventional technologies obsolete. Characterization technologies at wafer level are needed with enough sensitivity to detect strain in order to inform fabrication. In this work, NEXAFS spectroscopy was combined with simulations to predict lattice parameters of graphene grown on copper and further transferred to a variety of substrates. The strains associated with the predicted lattice parameters are in agreement with experimental findings. The approach presented here holds promise to effectively measure strain in graphene and other 2D systems at wafer levels to inform manufacturing environments.
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Affiliation(s)
- W Y Rojas
- School of Electronic Engineering, Bangor University , Bangor LL57 1UT, United Kingdom
| | - A D Winter
- School of Electronic Engineering, Bangor University , Bangor LL57 1UT, United Kingdom
| | - J Grote
- Materials and Manufacturing Directorate, Air Force Research Laboratory , Wright-Patterson AFB, Ohio 45433, United States
| | - S S Kim
- Materials and Manufacturing Directorate, Air Force Research Laboratory , Wright-Patterson AFB, Ohio 45433, United States
| | - R R Naik
- Materials and Manufacturing Directorate, Air Force Research Laboratory , Wright-Patterson AFB, Ohio 45433, United States
| | - A D Williams
- Materials and Manufacturing Directorate, Air Force Research Laboratory , Wright-Patterson AFB, Ohio 45433, United States
| | - C Weiland
- Synchrotron Research, Inc. , Melbourne, Florida 32901, United States
| | - E Principe
- Synchrotron Research, Inc. , Melbourne, Florida 32901, United States
| | - D A Fischer
- National Institute of Standards and Technology , Gaithersburg, Maryland 20899, United States
| | - S Banerjee
- Departments of Chemistry and Materials Science and Engineering, Texas A&M University , College Station, Texas 77842-3012, United States
| | - D Prendergast
- The Molecular Foundry, Materials Science Division, Lawrence Berkeley National Laboratory , Berkeley, California 94720, United States
| | - E M Campo
- School of Electronic Engineering, Bangor University , Bangor LL57 1UT, United Kingdom
- Department of Physics and Astronomy, University of Texas at San Antonio , San Antonio, Texas 78249, United States
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Kim SH, Shin SM, Choi YS, Ko CC, Kim SS, Park SB, Son WS, Kim YI. Morphometric analysis of the maxillary root apex positions according to crowding severity. Orthod Craniofac Res 2017; 20:202-208. [PMID: 28857415 DOI: 10.1111/ocr.12198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/31/2017] [Indexed: 11/29/2022]
Abstract
OBJECTIVES To determine differences in arch forms derived from the root apices locations between individuals with <2 mm maxillary crowding and controls. SETTING AND SAMPLE POPULATION The Department of Orthodontics, Pusan National University. Cone-beam computed tomography (CBCT) images of 102 patients in the control group and 95 patients in the crowding group. MATERIALS AND METHODS X, Y and Z coordinates of the tip of the crowns and the apex of the root of the maxillary teeth (except second molars) were determined on the CBCT images. The acquired three-dimensional (3D) coordinates were converted into two-dimensional (2D) coordinates via projection on the palatal plane, and the Procrustes analysis was employed to process the converted 2D coordinates. The mean shape of the arch form derived from the location of the tip of the crowns and the apex of the root was compared between groups using the statistical shape analysis. RESULTS There was a statistically significant difference (P = .046) between the groups for the mean shape of the root apex arch form, but the difference was small and clinically irrelevant as it is minor compared to the degree of crowding. CONCLUSIONS Maxillary arch from at the level of the maxillary apices only shows minor differences between crowded and non-crowded dentitions.
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Affiliation(s)
- S H Kim
- Department of Orthodontics, Dental Research Institute, Pusan National University Dental Hospital, Yangsan, South Korea
| | - S M Shin
- Department of Statistics, College of Natural Science, Pusan National University, Busan, South Korea
| | - Y S Choi
- Department of Statistics, College of Natural Science, Pusan National University, Busan, South Korea
| | - C C Ko
- Department of Orthodontics, School of Dentistry, University of North Carolina, Chapel Hill, NC, USA
| | - S S Kim
- Department of Orthodontics, Dental Research Institute, Pusan National University Dental Hospital, Yangsan, South Korea
| | - S B Park
- Department of Orthodontics, Dental Research Institute, Pusan National University Dental Hospital, Yangsan, South Korea
| | - W S Son
- Department of Orthodontics, Dental Research Institute, Pusan National University Dental Hospital, Yangsan, South Korea
| | - Y-I Kim
- Department of Orthodontics, Dental Research Institute, Pusan National University Dental Hospital, Yangsan, South Korea.,Institute of Translational Dental Sciences, Pusan National University, Yangsan, South Korea
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De Melo J, Kim SS, Lourenco C, Penn LZ. Lysine-52 stabilizes the MYC oncoprotein through an SCFFbxw7-independent mechanism. Oncogene 2017; 36:6815-6822. [DOI: 10.1038/onc.2017.268] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 06/09/2017] [Accepted: 06/19/2017] [Indexed: 12/11/2022]
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Kim SS, Kim GE, Ko AH. A Patient with HIV-Associated Metastatic Anal Squamous Cell Carcinoma Receiving Multimodality Therapy with Curative Intent: Case Report and Review of the Literature. J Gastrointest Cancer 2017; 48:94-99. [PMID: 26961789 DOI: 10.1007/s12029-016-9814-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Affiliation(s)
- Sunhee S Kim
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, 550 16th Street, 6th floor, Box 3211, San Francisco, CA, 94143, USA
| | - Grace E Kim
- Department of Pathology, University of California San Francisco, 1825 4th Street, San Francisco, CA, 94158, USA
| | - Andrew H Ko
- Helen Diller Family Comprehensive Cancer Center, University of California San Francisco, 550 16th Street, 6th floor, Box 3211, San Francisco, CA, 94143, USA. .,Division of Hematology/Oncology, San Francisco, CA, USA.
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Kim SS, Mendola P, Zhu Y, Hwang BS, Grantz KL. Spontaneous and indicated preterm delivery risk is increased among overweight and obese women without prepregnancy chronic disease. BJOG 2017; 124:1708-1716. [PMID: 28236376 DOI: 10.1111/1471-0528.14613] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/15/2017] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To investigate the independent impact of prepregnancy obesity on preterm delivery among women without chronic diseases by gestational age, preterm category and parity. DESIGN A retrospective cohort study. SETTING Data from the Consortium on Safe Labor (CSL) in the USA (2002-08). POPULATION Singleton deliveries at ≥23 weeks of gestation in the CSL (43 200 nulliparas and 63 129 multiparas) with a prepregnancy body mass index (BMI) ≥18.5 kg/m2 and without chronic diseases. METHODS Association of prepregnancy BMI and the risk of preterm delivery was examined using Poisson regression with normal weight as reference. MAIN OUTCOME MEASURES Preterm deliveries were categorised by gestational age (extremely, very, moderate to late) and category (spontaneous, indicated, no recorded indication). RESULTS Relative risk of spontaneous preterm delivery was increased for extremely preterm among obese nulliparas (1.26, 95% CI: 0.94-1.70 for overweight; 1.88, 95% CI: 1.30-2.71 for obese class I; 1.99, 95% CI: 1.32-3.01 for obese class II/III) and decreased for moderate to late preterm delivery among overweight and obese multiparas (0.90, 95% CI: 0.83-0.97 for overweight; 0.87, 95% CI: 0.78-0.97 for obese class I; 0.79, 95% CI: 0.69-0.90 for obese class II/III). Indicated preterm delivery risk was increased with prepregnancy BMI in a dose-response manner for extremely preterm and moderate to late preterm among nulliparas, as it was for moderate to late preterm delivery among multiparas. CONCLUSIONS Prepregnancy BMI was associated with increased risk of preterm delivery even in the absence of chronic diseases, but the association was heterogeneous by preterm categories, gestational age and parity. TWEETABLE ABSTRACT Obese nulliparas without chronic disease had higher risk for spontaneous delivery <28 weeks of gestation.
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Affiliation(s)
- S S Kim
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA.,Division of Epidemiology and Health Index, Korea National Institute of Health, Cheongju-si, Chungcheongbuk-do, Korea
| | - P Mendola
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA
| | - Y Zhu
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA.,Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA
| | - B S Hwang
- Biostatistics and Bioinformatics Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA.,Department of Applied Statistics, Chung-Ang University, Seoul, Korea
| | - K L Grantz
- Epidemiology Branch, Division of Intramural Population Health Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, MD, USA
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22
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Jeong EK, Jang HJ, Kim SS, Lee SY, Oh MY, Kim HJ, Eom DW, Ham JY, Han DJ. Protective Effect of Polydeoxyribonucleotide Against Renal Ischemia-Reperfusion Injury in Mice. Transplant Proc 2016; 48:1251-7. [PMID: 27320598 DOI: 10.1016/j.transproceed.2016.01.028] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2015] [Accepted: 01/14/2016] [Indexed: 11/27/2022]
Abstract
BACKGROUND Polydeoxyribonucleotide (PDRN) is an A2A receptor agonist that induces vascular endothelial growth factor (VEGF) production during the pathological condition of low tissue perfusion. Ischemia-reperfusion injury (IRI) is a major problem after renal transplantation. In the present study, we investigated whether PDRN exhibits reno-protective effects against ischemia-reperfusion-induced acute kidney injury in mice. METHODS Renal ischemia-reperfusion injury was induced in male C57BL/6 mice by bilateral renal pedicle occlusion for 30 minutes, followed by reperfusion for 48 hours. PDRN (8 mg/kg body weight intraperitoneally) was administered 30 minutes before IRI. RESULTS Treatment with PDRN significantly decreased neutrophil gelatinase-associated lipocalin levels in the urine, blood urea nitrogen level, and serum creatinine levels as well as kidney tubular injury. Western blotting showed that PDRN significantly increased the levels of vascular endothelial growth factor and B-cell lymphoma protein and attenuated p38 mitogen-activated protein kinase, c-Jun N-terminal kinase, inducible nitric oxide synthase, and Bcl-2-associated X protein levels 48 hours after IRI. CONCLUSIONS Our findings suggest that PDRN is a potential therapeutic agent for acute ischemia-induced renal damage.
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Affiliation(s)
- E K Jeong
- Department of Anesthesia and Pain Medicine, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - H J Jang
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea.
| | - S S Kim
- Department of Anesthesia and Pain Medicine, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - S Y Lee
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - M Y Oh
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - H J Kim
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - D W Eom
- Department of Pathology, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - J Y Ham
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, South Korea
| | - D J Han
- Asan Medical Center, Seoul, South Korea
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23
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Lee HM, Jang HJ, Kim SS, Kim HJ, Lee SY, Oh MY, Kwan HC, Jang DS, Eom DW. Protective Effect of Eupatilin Pretreatment Against Hepatic Ischemia-Reperfusion Injury in Mice. Transplant Proc 2016; 48:1226-33. [PMID: 27320593 DOI: 10.1016/j.transproceed.2016.01.024] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Accepted: 01/14/2016] [Indexed: 12/21/2022]
Abstract
BACKGROUND Eupatilin, a pharmacologically active flavone derived from Artemisia species, is known to have antioxidant and antiinflammatory activities. Ischemia-reperfusion injury (IRI) is a major critical event that commonly occurs after liver transplantation and resection. Furthermore, inflammatory responses to IRI exacerbate the resultant hepatic injury. In this study, we investigated whether eupatilin protects against IR-induced acute liver injury in mice. MATERIALS AND METHODS Partial (70%) hepatic IRI was induced in male C57BL/6 mice by portal triad pedicle occlusion for 90 minutes followed by reperfusion for 6 hours. Eupatilin (10 mg/kg body weight, oral) was administered 4 days before the IRI. RESULTS Treatment with eupatilin significantly decreased serum alanine aminotransferase and serum aspartate aminotransferase as well as liver histologic changes. Eupatilin also prevented hepatic glutathione depletion and increased malondialdehyde levels induced by IRI. Western blotting indicated that eupatilin significantly increased the levels of heat shock protein and B-cell lymphoma 2 protein, attenuated inducible nitric oxide synthase, and cleaved caspase-3 levels 6 hours after IRI. The expression of the Toll-like receptor 2/4, and phosphorylated nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor was significantly decreased in the eupatilin pretreatment group. CONCLUSIONS Eupatilin improved the acute hepatic IRI by reducing inflammation and apoptosis. These findings suggest that eupatilin is a promising therapeutic agent against acute IR-induced hepatic damage.
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Affiliation(s)
- H M Lee
- Department of Anesthesia and Pain Medicine, Ulsan University, College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - H J Jang
- Department of Surgery, Ulsan University, College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea.
| | - S S Kim
- Department of Anesthesia and Pain Medicine, Ulsan University, College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - H J Kim
- Department of Surgery, Ulsan University, College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - S Y Lee
- Department of Surgery, Ulsan University, College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - M Y Oh
- Department of Surgery, Ulsan University, College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - H C Kwan
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, South Korea
| | - D S Jang
- Department of Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, South Korea
| | - D W Eom
- Department of Pathology, Ulsan University, College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
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Kim JS, Jang HJ, Kim SS, Oh MY, Kim HJ, Lee SY, Eom DW, Ham JY, Han DJ. Red Ginseng Administration Before Islet Isolation Attenuates Apoptosis and Improves Islet Function and Transplant Outcome in a Syngeneic Mouse Marginal Islet Mass Model. Transplant Proc 2016; 48:1258-65. [PMID: 27320599 DOI: 10.1016/j.transproceed.2016.01.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Accepted: 01/14/2016] [Indexed: 02/07/2023]
Abstract
BACKGROUND Transplantation of isolated islets is a promising treatment for diabetes. Red ginseng (RG) is steamed ginseng and has been reported to enhance insulin secretion-stimulating and anti-apoptotic activities in pancreatic β-cells. In this study, we examined the hypothesis that pre-operative RG treatment enhances islet cell function and anti-apoptosis and investigated whether RG improves islet engraftment by transplant of a marginal mass of syngeneic islets pretreated with RG in diabetic mice. METHODS Balb/c mice were randomly divided into 2 groups, and 1 group was administered RG (400 mg/kg/day orally) for 7 days before islet isolation. In vitro islet viability and function were assessed. After cytokine treatment, cell viability, function, and apoptosis of islet cells were analyzed. Furthermore, we studied the effects of RG in a syngeneic islet graft model. A marginal mass of syngeneic mouse islets was transplanted into diabetic hosts. RESULTS Islet pretreatment with RG showed 1.4-fold higher glucose-induced insulin secretion than did control islets. RG pretreatment upregulated B-cell lymphoma 2 (Bcl-2) expression and downregulated Bcl-associated X protein (BAX), caspase-3, and inducible nitric oxide synthase (iNOS) expression. Glucose-induced insulin release, NO, and apoptosis were significantly improved in RG-pretreated islets compared with cytokine-treated islets. RG-pretreated mice exhibited improved marginal mass islet graft survival compared with controls. CONCLUSIONS These results suggest that pre-operative RG administration enhanced islet function before transplantation and attenuated cytokine-induced damage associated with apoptosis. These studies indicate that inhibition of apoptosis by RG significantly improved islet cell and graft function after isolation and transplantation, respectively.
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Affiliation(s)
- J S Kim
- Department of Anesthesia and Pain Medicine, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - H J Jang
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea.
| | - S S Kim
- Department of Anesthesia and Pain Medicine, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - M Y Oh
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - H J Kim
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - S Y Lee
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - D W Eom
- Department of Pathology, Ulsan University College of Medicine, Gangneung Asan Hospital, Gangneung, South Korea
| | - J Y Ham
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, Seoul, South Korea
| | - D J Han
- Asan Medical Center, Seoul, South Korea
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Kim SS, Han GS, Kim GN, Koo DS, Kim IG, Choi JW. Advanced remediation of uranium-contaminated soil. J Environ Radioact 2016; 164:239-244. [PMID: 27522327 DOI: 10.1016/j.jenvrad.2016.08.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 08/02/2016] [Accepted: 08/03/2016] [Indexed: 06/06/2023]
Abstract
The existing decontamination method using electrokinetic equipment after acidic washing for uranium-contaminated soil requires a long decontamination time and a significant amount of electric power. However, after soil washing, with a sulfuric acid solution and an oxidant at 65 °C, the removal of the muddy solution using a 100 mesh sieve can decrease the radioactivity of the remaining coarse soil to the clearance level. Therefore, only a small amount of fine soil collected from the muddy solution requires the electrokinetic process for its decontamination. Furthermore, it is found that the selective removal of uranium from the sulfuric washing solution is not obtained using an anion exchanger but rather using a cation exchanger, unexpectedly. More than 90% of the uranium in the soil washing solutions is adsorbed on the S-950 resin, and 87% of the uranium adsorbed on S-950 is desorbed by washing with a 0.5 M Na2CO3 solution at 60 °C.
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Affiliation(s)
- S S Kim
- Decontamination and Decommissioning Research Div., Korea Atomic Energy Research Institute, 1045 Daedeok-daero, Yusong-gu, Daejeon, 305-353, Republic of Korea.
| | - G S Han
- Decontamination and Decommissioning Research Div., Korea Atomic Energy Research Institute, 1045 Daedeok-daero, Yusong-gu, Daejeon, 305-353, Republic of Korea
| | - G N Kim
- Decontamination and Decommissioning Research Div., Korea Atomic Energy Research Institute, 1045 Daedeok-daero, Yusong-gu, Daejeon, 305-353, Republic of Korea
| | - D S Koo
- Decontamination and Decommissioning Research Div., Korea Atomic Energy Research Institute, 1045 Daedeok-daero, Yusong-gu, Daejeon, 305-353, Republic of Korea
| | - I G Kim
- Decontamination and Decommissioning Research Div., Korea Atomic Energy Research Institute, 1045 Daedeok-daero, Yusong-gu, Daejeon, 305-353, Republic of Korea
| | - J W Choi
- Decontamination and Decommissioning Research Div., Korea Atomic Energy Research Institute, 1045 Daedeok-daero, Yusong-gu, Daejeon, 305-353, Republic of Korea
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Kim SS, Kang TW, Song KD, Cho SK, Lee MW, Rhim H, Sinn DH, Jung SH. Radiofrequency ablation and transarterial chemoembolisation as first-line treatment for recurrent hepatocellular carcinoma or isolated intrahepatic recurrent hepatocellular carcinoma in transplanted livers. Clin Radiol 2016; 72:141-149. [PMID: 27742104 DOI: 10.1016/j.crad.2016.09.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Revised: 08/09/2016] [Accepted: 09/08/2016] [Indexed: 12/30/2022]
Abstract
AIM To evaluate the efficacy of radiofrequency ablation (RFA) and transarterial chemoembolisation (TACE) as a first-line treatment for isolated intrahepatic recurrent hepatocellular carcinoma (IIR-HCC) after liver transplantation (LT). MATERIALS AND METHODS This retrospective study was approved by the institutional review board. Between January 2005 and January 2015, 588 consecutive patients underwent LT for the treatment of HCC. Among them, 27 patients with IIR-HCCs after LT who were treated with RFA (n=6) or TACE (n=21) as a first-line treatment were retrospectively included in this study. Disease-free and overall survival rates were estimated using the Kaplan-Meier method. Risk factors affecting these outcomes were assessed with Cox regression models. RESULTS Except for the total number of recurrent tumours and time-to-tumour recurrence after LT, baseline characteristics were not significantly different between the groups. The 2-year disease-free survival rates for RFA and TACE (20% versus 14%, respectively; p=0.180) and 4-year overall survival rates (33% versus 25%, respectively; p=0.065) were not significantly different between groups. In addition, the types of treatment were not associated with disease-free or overall survival in multivariate analyses. CONCLUSION TACE may be an effective treatment comparable to RFA in patients with IIR-HCC after LT when RFA is not feasible.
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Affiliation(s)
- S S Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - T W Kang
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
| | - K D Song
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S K Cho
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - M W Lee
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - H Rhim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - D H Sinn
- Division of Hepatology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S-H Jung
- Biostatics and Clinical Epidemiology Center, Samsung Medical Center, Seoul, Republic of Korea; Department of Health Sciences and Technology, SAIHST, Sungkyunkwan Univeristy, Seoul, Republic of Korea
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Kim SS, Nakakura EK, Wang ZJ, Kim GE, Corvera CU, Harris HW, Kirkwood KS, Hirose R, Tempero MA, Ko AH. Preoperative FOLFIRINOX for borderline resectable pancreatic cancer: Is radiation necessary in the modern era of chemotherapy? J Surg Oncol 2016; 114:587-596. [PMID: 27444658 DOI: 10.1002/jso.24375] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 07/01/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND No consensus exists regarding the optimal neoadjuvant treatment paradigm for patients with borderline resectable pancreatic cancer (BRPC), including the respective roles of chemotherapy and radiation. METHODS We performed a retrospective analysis, including detailed pathologic and radiologic review, of pancreatic cancer patients undergoing FOLFIRINOX, with or without radiation therapy (RT), prior to surgical resection at a high-volume academic center over a 4-year period. RESULTS Of 26 patients meeting inclusion criteria, 22 (84.6%) received FOLFIRINOX alone without RT (median number of treatment cycles = 9). The majority of patients met formal radiographic criteria for BRPC, with the superior mesenteric vein representing the most common vessel involved. R0 resection rate was 90.9%, with 12 patients (54.5%) requiring vascular reconstruction. Treatment response was classified as moderate or marked in 16 patients (72.7%) according to the College of American Pathologists grading system. Estimated median disease-free and overall survival rates are 22.6 months and not reached (NR), respectively. CONCLUSIONS This is one of the largest series to describe the use of neoadjuvant FOLFIRINOX, without radiation therapy, in patients with BRPC undergoing surgical resection. Given the high R0 resection rates and favorable clinical outcomes with chemotherapy alone, this strategy should be further assessed in prospective study design. J. Surg. Oncol. 2016;114:587-596. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Sunhee S Kim
- Division of Hematology/Oncology, University of California San Francisco, San Francisco, California
| | - Eric K Nakakura
- Department of Surgery, University of California San Francisco, San Francisco, California.
| | - Zhen J Wang
- Department of Radiology, University of California San Francisco, San Francisco, California
| | - Grace E Kim
- Department of Pathology, University of California San Francisco, San Francisco, California
| | - Carlos U Corvera
- Department of Surgery, University of California San Francisco, San Francisco, California
| | - Hobart W Harris
- Department of Surgery, University of California San Francisco, San Francisco, California
| | - Kimberly S Kirkwood
- Department of Surgery, University of California San Francisco, San Francisco, California
| | - Ryutaro Hirose
- Department of Surgery, University of California San Francisco, San Francisco, California
| | - Margaret A Tempero
- Division of Hematology/Oncology, University of California San Francisco, San Francisco, California
| | - Andrew H Ko
- Division of Hematology/Oncology, University of California San Francisco, San Francisco, California.
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Ghanem N, Jin JI, Kim SS, Choi BH, Lee KL, Ha AN, Song SH, Kong IK. The Anti-Müllerian Hormone Profile is Linked with theIn VitroEmbryo Production Capacity and Embryo Viability after Transfer but Cannot Predict Pregnancy Outcome. Reprod Domest Anim 2016; 51:301-10. [DOI: 10.1111/rda.12681] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Accepted: 02/04/2016] [Indexed: 11/30/2022]
Affiliation(s)
- N Ghanem
- Department of Animal Science; Division of Applied Life Science (BK21 Plus); Gyeongsang National University; Jinju Korea
- Department of Animal Production; Faculty of Agriculture Cairo University; Giza Egypt
| | - JI Jin
- Department of Animal Science; Division of Applied Life Science (BK21 Plus); Gyeongsang National University; Jinju Korea
| | - SS Kim
- Department of Animal Science; Division of Applied Life Science (BK21 Plus); Gyeongsang National University; Jinju Korea
| | - BH Choi
- Department of Animal Science; Division of Applied Life Science (BK21 Plus); Gyeongsang National University; Jinju Korea
| | - KL Lee
- Department of Animal Science; Division of Applied Life Science (BK21 Plus); Gyeongsang National University; Jinju Korea
| | - AN Ha
- Department of Animal Science; Division of Applied Life Science (BK21 Plus); Gyeongsang National University; Jinju Korea
| | - SH Song
- Department of Animal Science; Division of Applied Life Science (BK21 Plus); Gyeongsang National University; Jinju Korea
| | - IK Kong
- Department of Animal Science; Division of Applied Life Science (BK21 Plus); Gyeongsang National University; Jinju Korea
- Institute of Agriculture and Life Science; Gyeongsang National University; Jinju Korea
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Yakunina N, Kim TS, Tae WS, Kim SS, Nam EC. Applicability of the Sparse Temporal Acquisition Technique in Resting-State Brain Network Analysis. AJNR Am J Neuroradiol 2016; 37:515-20. [PMID: 26585264 DOI: 10.3174/ajnr.a4554] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Accepted: 08/17/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The ability of sparse temporal acquisition to minimize the effect of scanner background noise is of utmost importance in auditory fMRI; however, it has considerably lower temporal efficiency and resolution than the conventional continuous acquisition method. The purpose of this study was to determine whether sparse sampling could be applied to resting-state research by comparing its results with those obtained by using continuous acquisition. MATERIALS AND METHODS We identified resting-state networks by using independent component analysis and measured their functional connectivity strength in 14 healthy subjects who underwent two 6-minute sparse (60 volumes) and continuous (360 volumes) imaging sessions. To account for the sample size difference, an additional continuous dataset was generated by temporally matching the continuous dataset to 60 volumes of the sparse dataset. RESULTS Consistent resting-state network maps were produced through all 3 datasets. Scanner background noise did not appear to affect the spatial constitution of the networks, whereas a larger sample size influenced it substantially. The strength of the intranetwork connectivity was similar through the 3 datasets. CONCLUSIONS Our results indicated that continuous acquisition is a recommended technique that should be applied in most of the resting-state studies due to its superior temporal efficiency and increased statistical power. The use of sparse temporal acquisition should be restricted to very particular conditions when continuous scanner noise is unacceptable.
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Affiliation(s)
- N Yakunina
- From the Institute of Medical Science (N.Y.) Neuroscience Research Institute (N.Y., W.S.T., S.S.K., E.C.N.)
| | - T S Kim
- Department of Otolaryngology (T.S.K.), Kangwon National University Hospital, Chuncheon, Republic of Korea
| | - W S Tae
- Neuroscience Research Institute (N.Y., W.S.T., S.S.K., E.C.N.)
| | - S S Kim
- Department of Radiology (S.S.K.) Neuroscience Research Institute (N.Y., W.S.T., S.S.K., E.C.N.)
| | - E C Nam
- Department of Otolaryngology (E.C.N.), Kangwon National University, School of Medicine, Chuncheon, Republic of Korea Neuroscience Research Institute (N.Y., W.S.T., S.S.K., E.C.N.)
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Seong M, Kang TW, Kim M, Kim SS, Jang KM, Kim YK, Kim SH. Tumefactive gallbladder sludge: the MRI findings. Clin Radiol 2016; 71:402.e9-402.e15. [PMID: 26874658 DOI: 10.1016/j.crad.2016.01.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/22/2015] [Accepted: 01/04/2016] [Indexed: 01/02/2023]
Abstract
AIM To evaluate the conventional and diffusion-weighted magnetic resonance imaging (MRI) images of tumefactive gallbladder sludge. MATERIALS AND METHODS The institutional review board approved this retrospective study. Between January 2006 and January 2015, 3478 patients were diagnosed with gallbladder sludge by ultrasonography (US). Of them, 12 patients (eight male, four female; mean age, 63.6 years) with 12 tumefactive gallbladder sludge lesions, who underwent subsequent MRI for further evaluation within 1 month, were included in this study. Data regarding the clinical features, presence of enhancement, and signal intensities of the T2-, T1-, and diffusion-weighted images were collected. RESULTS All cases of tumefactive sludge were detected incidentally. None of the patients had any predisposing factors for biliary sludge. The tumefactive gallbladder sludge was predominantly seen as a well-defined mass-like lesion. It showed hyperintensity on T1-weighted images (91.7%, 11/12), and variable signal intensities on T2-weighted images. Most of the tumefactive sludge lesions showed no enhancement on the dynamic phases (90%, 9/10). There were no cases with diffusion restriction. Among the patients with follow-up US data (n=7), all the lesions were found to have either disappeared or decreased in size. CONCLUSION Although tumefactive gallbladder sludge on US can mimic gallbladder cancer, its hyperintensity on a T1-weighted image, and the absence of enhancement and diffusion restriction on MRI images can be helpful for differentiating it from a tumorous condition.
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Affiliation(s)
- M Seong
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - T W Kang
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea.
| | - M Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S S Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - K M Jang
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - Y K Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
| | - S H Kim
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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Kim SS, Nakakura EK, Wang ZJ, Kim GE, Corvera CU, Harris HW, Kirkwood KS, Hirose R, Tempero MA, Ko AH. Is neoadjuvant chemoradiation important in borderline resectable pancreatic cancer (BRPC)? Clinical and surgical outcomes associated with preoperative FOLFIRINOX alone in BRPC. J Clin Oncol 2016. [DOI: 10.1200/jco.2016.34.4_suppl.351] [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: 11/20/2022] Open
Abstract
351 Background: Neoadjuvant therapy is recommended to increase the likelihood of margin-negative (R0) resection for BRPC. However, there is no consensus regarding the optimal treatment paradigm, including the respective roles of chemotherapy and radiation (RT), in this setting. Methods: Retrospective analysis was conducted of BRPC pts treated with neoadjuvant FOLFIRINOX followed by surgical resection at a single tertiary care referral center over a 4-year period. Data collected included baseline pt characteristics, toxicity profiles, radiographic and serum CA19-9 response, perioperative complication rate, R0 resection rate, histopathologic response, and frequency and patterns of recurrence. Results: 26 BRPC pts received neoadjuvant FOLFIRINOX, 22 w/o addn RT. Abutment of the SMV (n = 9, 40.9%), SMA (n = 4, 18.2%), CHA (n = 4, 18.2%), and narrowing of the SMV (n = 4, 18.2%) were the most common vascular involvement. 9 (40.9%) pts had both arterial and venous involvement. Median baseline CA19-9 level was 278.5 U/ml. Pts received a median of 9 treatment cycles (range, 4-12). Radiographic response was categorized as shrinkage (n = 11, 50%), stable (n = 9, 40.9%), or progression (n = 2, 9.1%). The Whipple procedure was the most common operation performed (n = 17, 77.3%), with 12 pts (54.5%) requiring vascular reconstruction. Clavien-Dindo complication rates of grade 0, I, II, and IIIa occurred in 25.9%, 11.1%, 44.4%, and 14.8% of pts, respectively. R0 resection rate was 90.9%, with 13 (59.1%) having negative lymph nodes. Treatment response of Evans grade III or IV, corresponding to < 10% residual tumor cells, was seen in 8 pts (36.4%), including one pathologic CR (4.5%). AJCC Stage: ypT3N0 (36.4%), ypT3N1 (18.2%), ypT1N1 (18.2%). With a median f/u time of 22.1 months, 8 pts (36.4%) have progressed, inc 7 (87.5%) with distant disease. Median PFS is 22.5 mos. Conclusions: This is one of the largest series to report on the use of neoadjuvant chemotherapy w/o RT in BRPC pts. FOLFIRINOX alone in this setting is associated with high R0 resection rates and favorable clinical outcomes, and should be further assessed in prospective study design for BRPC.
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Affiliation(s)
- Sunhee S. Kim
- University of California, San Francisco, San Francisco, CA
| | | | - Zhen J. Wang
- University of California, San Francisco, San Francisco, CA
| | - Grace E. Kim
- University of California, San Francisco, San Francisco, CA
| | | | | | | | - Ryutaro Hirose
- University of California, San Francisco, San Francisco, CA
| | | | - Andrew H. Ko
- University of California, San Francisco, San Francisco, CA
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Rim TH, Choi YS, Kim SS, Kang MJ, Oh J, Park S, Byeon SH. Retinal vessel structure measurement using spectral-domain optical coherence tomography. Eye (Lond) 2015; 30:111-9. [PMID: 26493040 DOI: 10.1038/eye.2015.205] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 08/16/2015] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To assess the reliability and validity of spectral-domain optical coherence tomography (SD-OCT) measurements of retinal vessel lumen diameters and wall thicknesses. METHODS SD-OCT was used to characterize the circular region around the optic disc of 40 eyes (20 subjects). The inner and outer sides (vitreal and choroidal sides) of the vessel wall and the luminal diameter were measured using intensity graphs. RESULTS Mean arterial and venous luminal diameters were 95.1±16.1 and 132.6±17.8 μm, respectively. The wall thicknesses of inner and outer sides of the artery were 23.9±4.9 and 21.2±3.5 μm, respectively. The wall thicknesses of the inner and outer sides of the vein were 20.7±4.2 and 16.3±4.3 μm, respectively. There were significant differences between the inner and outer wall thicknesses in both the artery and vein (P<0.01). Intra- and interobserver intraclass correlation coefficients (ICCs) for lumen measurements were >0.95, and for wall thicknesses were >0.85, except for the outer wall thickness measurements. The mean value of outer and inner wall thicknesses showed good reproducibility, with ICCs of >0.85. CONCLUSION Intensity graph-assisted measurements using SD-OCT provided more objective information in finding boundaries of vessels. Luminal diameters and wall thicknesses obtained with OCT showed good overall reproducibility, with inner wall thicknesses being thicker, and with better reproducibility compared with outer wall thicknesses, where ICC values were the lowest among the inner wall thicknesses, mean thicknesses of inner and outer walls, and luminal diameters. When using SD-OCT measurements, caution is therefore advised when using only the outer wall as representative of the wall thicknesses.
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Affiliation(s)
- T H Rim
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
| | - Y S Choi
- Department of Radiology, Severance Hospital, Yonsei University College of Medicine, Seoul, South Korea
| | - S S Kim
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
| | - M-J Kang
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
| | - J Oh
- Department of Cardiology, Severance Cardiovascular Hospital, Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - S Park
- Department of Cardiology, Severance Cardiovascular Hospital, Cardiovascular Research Institute, Yonsei University College of Medicine, Seoul, South Korea
| | - S H Byeon
- Department of Ophthalmology, Severance Hospital, Institute of Vision Research, Yonsei University College of Medicine, Seoul, South Korea
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Park H, Chung YS, Yoon CH, Lee SH, Kim SS, Kang C, Choi BS. Presentation of available CTL epitopes that induction of cell-mediated immune response against HIV-1 Koran clade B strain using computational technology. HIV Med 2015; 17:460-6. [PMID: 26471354 DOI: 10.1111/hiv.12316] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/27/2015] [Indexed: 12/31/2022]
Abstract
OBJECTIVE Theoretical predicting cytotoxic T lymphocyte (CTL) epitopes are an important tool in vaccine design and CTL therapy for enhancing our understanding of the cellular immune system. We would like to identify available CTL epitopes against HIV-1 Korean clade B. CTL activity was assessed in freshly isolated peripheral blood mononuclear cells from Korean HIV patients in order to assess whether these CTL epitopes induce a cell-mediated immune response (CMI). METHODS NetCTLpan1.1 software, which is the most popular prediction computer software package, and full atom-based simulation (FABS), which is a 3D modelling system for binding activity between epitopes and human leucocyte antigen (HLA) molecules, were used to predict the peptide-spanning Env region binding to HLA-A*24:02, HLA-A*02:01 and HLA-B*15:01, which are frequently found in the Korean population. Granzyme B and interferon-γ ELISPOT assays were used to determine whether identified CTL epitopes induce CMI. RESULTS Three HIV-1 Korean clade B-specific Env CTL epitopes were identified: Gp41-RYL and Gp41-RQG are localized within gp41, and Gp120-LLQ within gp120. In in vitro assays using granzyme B ELISPOT, Gp120-LLQ and Gp41-RQG induced epitope-specific CTL responses in HLA-restricted cells. In ex vivo assay using IFN-γ ELISPOT, cell-mediated immune responses to Gp41-RYL were present in 50% of HLA-matched patients, and responses to Gp120-LLQ and Gp41-RQG were found in 33% of HLA-matched patients. CONCLUSION In this study, we found that a prediction pipeline for CTL epitopes might be based on the most popular computer prediction software and FABS methods. Our results suggest that these CTL epitopes may provide useful tools and information for the development of a therapeutic vaccine against HIV-1 Korean clade B.
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Affiliation(s)
- H Park
- Division of AIDS, Korea National Institute of Health, Cheongju, Chungbuk, Korea
| | - Y-S Chung
- Division of AIDS, Korea National Institute of Health, Cheongju, Chungbuk, Korea
| | - C-H Yoon
- Division of AIDS, Korea National Institute of Health, Cheongju, Chungbuk, Korea
| | - S H Lee
- Department of Laboratory Medicine, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - S S Kim
- Division of AIDS, Korea National Institute of Health, Cheongju, Chungbuk, Korea
| | - C Kang
- Division of AIDS, Korea National Institute of Health, Cheongju, Chungbuk, Korea
| | - B-S Choi
- Division of AIDS, Korea National Institute of Health, Cheongju, Chungbuk, Korea
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Kim SS, Lee SY, Park KJ, Park SM, An HJ, Hyun JM, Choi YH. Gluconacetobacter sp. gel_SEA623-2, bacterial cellulose producing bacterium isolated from citrus fruit juice. Saudi J Biol Sci 2015; 24:314-319. [PMID: 28149167 PMCID: PMC5272943 DOI: 10.1016/j.sjbs.2015.09.031] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 09/25/2015] [Accepted: 09/27/2015] [Indexed: 11/24/2022] Open
Abstract
Cellulose producing bacterial strain was isolated from citrus fruit juice fungus. The isolated strain was identified as Gluconacetobacter sp. gel_SEA623-2 based on several morphological characteristics, biochemical tests, and 16S rRNA conducted. Culture conditions for bacterial cellulose production by SEA623-2 were screened in static trays. Conditions were extensively optimized by varying the kind of fruit juice, pH, sugar concentration, and temperature for maximum cellulose production. SEA623-2 has a high productive capacity in citrus processing medium, but not in other fruits. The optimal combination of the media constituents for bacterial cellulose production is as follows: 10% citrus juice, 10% sucrose, 1% acetic acid, and 1% ethanol at 30 °C, pH 3.5. Bacterial cellulose produced by SEA623-2 has soft physical properties, high tensile strength, and high water retention value. The cellulose produced by the selected bacteria is suitable as a cosmetic and medical material.
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Affiliation(s)
- S S Kim
- Citrus Research Institute, National Institute of Horticultural & Herbal Science, RDA, Jeju 697-943, Republic of Korea
| | - S Y Lee
- Citrus Research Institute, National Institute of Horticultural & Herbal Science, RDA, Jeju 697-943, Republic of Korea
| | - K J Park
- Citrus Research Institute, National Institute of Horticultural & Herbal Science, RDA, Jeju 697-943, Republic of Korea
| | - S M Park
- Citrus Research Institute, National Institute of Horticultural & Herbal Science, RDA, Jeju 697-943, Republic of Korea
| | - H J An
- Citrus Research Institute, National Institute of Horticultural & Herbal Science, RDA, Jeju 697-943, Republic of Korea
| | - J M Hyun
- Citrus Research Institute, National Institute of Horticultural & Herbal Science, RDA, Jeju 697-943, Republic of Korea
| | - Y H Choi
- Citrus Research Institute, National Institute of Horticultural & Herbal Science, RDA, Jeju 697-943, Republic of Korea
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Jeon YK, Shin MJ, Kim MH, Mok JH, Kim SS, Kim BH, Kim SJ, Kim YK, Chang JH, Shin YB, Kim IJ. Low pulmonary function is related with a high risk of sarcopenia in community-dwelling older adults: the Korea National Health and Nutrition Examination Survey (KNHANES) 2008-2011. Osteoporos Int 2015; 26:2423-9. [PMID: 25956284 DOI: 10.1007/s00198-015-3152-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 04/26/2015] [Indexed: 01/06/2023]
Abstract
UNLABELLED Sarcopenia is the age-related reduction of skeletal muscle mass in older individuals. Respiratory muscle strength may be related to skeletal muscle mass and, thus, the present study attempted to estimate the risk of sarcopenia relative to decreased pulmonary function. The present findings demonstrated that low pulmonary function was associated with low muscle mass in community-dwelling older adults. INTRODUCTION Lean body mass is related to pulmonary function in patients with chronic obstructive pulmonary disease (COPD). However, the relationship between muscle mass and pulmonary function in healthy older adults has yet to be clarified. Thus, the present study investigated the association of pulmonary function with muscle mass in an older community-dwelling Korean population. METHODS This study included 463 disease-free subjects over 65 years of age who underwent anthropometric measurements, laboratory tests, spirometry, and the estimation of appendicular skeletal muscle (ASM) mass in the 2008-2011 Korea National Health and Nutrition Examination Survey (KNHANES). Low muscle mass was defined as the value of ASM divided by height squared (ASM/height(2)) that was less than two standard deviations (SD) below the sex-specific mean of the young reference group. RESULTS Forced expiratory volume in 1 s (FEV1[L]) and forced vital capacity (FVC[L]) were positively correlated with ASM/height(2) in males (p < 0.001 and p = 0.001, respectively) but not in females (p = 0.360 and p = 0.779, respectively). A univariate logistic regression analysis revealed that males with low FEV1 or FVC were more likely to have low muscle mass (odds ratio [OR] = 3.11, 95% confidence interval [CI] 1.62-5.99 for FEV1; OR = 1.99, 95% CI 1.13-3.53 for FVC); similar results were found for females, but the significance was lower (OR = 11.37, 95% CI 0.97-132.91 for FEV1; OR = 7.31, 95% CI 1.25-42.74 for FVC). After adjusting for age, smoking, and moderate physical activity, a low FEV1 value was associated with low muscle mass in both males (OR = 2.90, 95% CI 1.50-5.63) and females (OR = 9.15, 95% CI 1.53-54.77). CONCLUSIONS Using nationally representative data from the 2008-2011 KNHANES, low pulmonary function was found to be associated with low muscle mass in community-dwelling older Korean adults.
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Affiliation(s)
- Y K Jeon
- Division of Endocrinology, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
- Medical Research Institute, Pusan National University, Busan, Korea
| | - M J Shin
- Department of Rehabilitation Medicine, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
- Medical Research Institute, Pusan National University, Busan, Korea
| | - M H Kim
- Division of Pulmonology, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
- Medical Research Institute, Pusan National University, Busan, Korea
| | - J H Mok
- Division of Pulmonology, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
- Medical Research Institute, Pusan National University, Busan, Korea
| | - S S Kim
- Division of Endocrinology, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
- Medical Research Institute, Pusan National University, Busan, Korea
| | - B H Kim
- Division of Endocrinology, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
- Medical Research Institute, Pusan National University, Busan, Korea
| | - S-J Kim
- Department of Nuclear Medicine, Pusan National University School of Medicine, Busan, Korea
- Medical Research Institute, Pusan National University, Busan, Korea
| | - Y K Kim
- Kim Yong Ki Clinic, Busan, Korea
| | - J H Chang
- Department of Rehabilitation Medicine, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
- Medical Research Institute, Pusan National University, Busan, Korea
| | - Y B Shin
- Department of Rehabilitation Medicine, Pusan National University Hospital, Pusan National University School of Medicine, Busan, Korea
- Medical Research Institute, Pusan National University, Busan, Korea
| | - I J Kim
- Division of Endocrinology, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea.
- Medical Research Institute, Pusan National University, Busan, Korea.
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Kim S, Russell M, Henry M, Kim SS, Naik RR, Voevodin AA, Jang SS, Tsukruk VV, Fedorov AG. Dynamic modulation of electronic properties of graphene by localized carbon doping using focused electron beam induced deposition. Nanoscale 2015; 7:14946-14952. [PMID: 26302897 DOI: 10.1039/c5nr04063a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We report on the first demonstration of controllable carbon doping of graphene to engineer local electronic properties of a graphene conduction channel using focused electron beam induced deposition (FEBID). Electrical measurements indicate that an "n-p-n" junction on graphene conduction channel is formed by partial carbon deposition near the source and drain metal contacts by low energy (<50 eV) secondary electrons due to inelastic collisions of long range backscattered primary electrons generated from a low dose of high energy (25 keV) electron beam (1 × 10(18) e(-) per cm(2)). Detailed AFM imaging provides direct evidence of the new mechanism responsible for dynamic evolution of the locally varying graphene doping. The FEBID carbon atoms, which are physisorbed and weakly bound to graphene, diffuse towards the middle of graphene conduction channel due to their surface chemical potential gradient, resulting in negative shift of Dirac voltage. Increasing a primary electron dose to 1 × 10(19) e(-) per cm(2) results in a significant increase of carbon deposition, such that it covers the entire graphene conduction channel at high surface density, leading to n-doping of graphene channel. Collectively, these findings establish a unique capability of FEBID technique to dynamically modulate the doping state of graphene, thus enabling a new route to resist-free, "direct-write" functional patterning of graphene-based electronic devices with potential for on-demand re-configurability.
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Affiliation(s)
- S Kim
- George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA.
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McClelland S, Mackey SJ, Kim SS. The dangerous gamble of heparinization within two weeks of nonoperative traumatic acute subdural hematoma in patients with increased stroke risk: a case series. J Postgrad Med 2015; 60:194-7. [PMID: 24823523 DOI: 10.4103/0022-3859.132344] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND In traumatic acute subdural hematoma (aSDH) management, systemic anticoagulation is contraindicated, particularly during the first 2 weeks. We present two cases of patients with nonoperative aSDH whose stroke risk led to heparinization within 2 weeks of the initial hemorrhage and examine their outcomes to illustrate the risks and benefits associated with systemic anticoagulation. MATERIALS AND METHODS Two elderly males, on warfarin at baseline who developed traumatic nonoperative aSDH were heparinized within 2 weeks of aSDH onset. RESULTS One patient showed a decreased SDH volume on Day 19. The second patient developed sudden onset headache with fixed/dilated pupils on Day 5. In this patient, a CT scan of the brain revealed marked enlargement of the aSDH from 0.9 to 2.4 cm with midline shift of 1.5 cm, and uncal herniation that was incompatible with life. CONCLUSION Heparinization within two weeks of aSDH may cause SDH enlargement resulting in rapidly fatal neurologic deterioration. Further study is needed to more definitively address this issue.
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Affiliation(s)
- S McClelland
- Department of Neurosurgery, Lahey Clinic, Burlington, Massachusetts, United States
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Kim JY, Kim SS, Jang HJ, Oh MY, Lee DH, Eom DW, Kang KS, Kim SN, Kwan HC, Ham JY, Kim WJ, Jang DS, Han DJ. 5,7-dihydroxy-3,4,6-trimethoxyflavone attenuates ischemic damage and apoptosis in mouse islets. Transplant Proc 2015; 47:1073-8. [PMID: 26036523 DOI: 10.1016/j.transproceed.2014.12.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 12/30/2014] [Indexed: 11/18/2022]
Abstract
BACKGROUND The transplantation of isolated pancreatic islets is a promising treatment for diabetes. 5,7-dihydroxy-3,4,6-trimethoxyflavone (Eupatilin), a pharmacologically active flavone derived from the Artemisia plant species, has been reported to have antioxidant and anti-inflammatory activities. This study examines the hypothesis that preoperative eupatilin treatment can attenuate ischemic damage and apoptosis before islet transplantation. METHODS Islets isolated from Balb/c mice were randomly divided into 2 groups, and cultured in medium supplemented with or without eupatilin. In vitro islet viability and function were assessed. After treatment with a cytokine cocktail consisting of tumor necrosis factor (TNF)-α, interferon (INF)-γ, and interleukin (IL)-1β, islet cell viability, function, and apoptotic status were determined. The glutathione (GSH) and nitrous oxide (NO) levels were also measured. Proteins related to apoptosis were analyzed using Western blotting. RESULTS There was no difference in cell viability between the 2 groups. Islets cultured in the medium supplemented with eupatilin showed 1.4-fold higher glucose-induced insulin secretion than the islets cultured in the medium without eupatilin. After treatment with a cytokine cocktail, glucose-induced insulin release and the total insulin content of the islets were significantly improved in eupatilin-pretreated islets compared with islets not treated with eupatilin. Apoptosis was significantly decreased, and GSH levels were elevated in the eupatilin-pretreated group. Cytokine-only treated islets produced significantly higher levels of NO, iNOS, and caspase-3 than islets pretreated with eupatilin before cytokine treatment. CONCLUSIONS These results suggest that preoperative eupatilin administration enhances islet function before transplantation and attenuates the cytokine-induced damage associated with NO production and apoptosis.
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Affiliation(s)
- J Y Kim
- Department of Internal Medicine, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea
| | - S S Kim
- Department of Anesthesia and Pain, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea
| | - H J Jang
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea.
| | - M Y Oh
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea
| | - D H Lee
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea
| | - D W Eom
- Department of Pathology, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea
| | - K S Kang
- College of Korean Medicine, Gachon University, Seongnam, South Korea
| | - S N Kim
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, South Korea
| | - H C Kwan
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, South Korea
| | - J Y Ham
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, South Korea
| | - W J Kim
- Department of Internal Medicine, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea
| | - D S Jang
- Department of Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul, South Korea
| | - D J Han
- Asan Medical Center, Seoul, South Korea
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Choi SA, Lee YE, Kwak PA, Lee JY, Kim SS, Lee SJ, Phi JH, Wang KC, Song J, Song SH, Joo KM, Kim SK. Clinically applicable human adipose tissue-derived mesenchymal stem cells delivering therapeutic genes to brainstem gliomas. Cancer Gene Ther 2015; 22:302-11. [DOI: 10.1038/cgt.2015.25] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2014] [Revised: 04/16/2015] [Accepted: 04/30/2015] [Indexed: 12/13/2022]
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Kim SS, Jang HJ, Oh MY, Eom DW, Kang KS, Kim YJ, Lee JH, Ham JY, Choi SY, Wee YM, Kim YH, Han DJ. Ginsenoside Rg3 enhances islet cell function and attenuates apoptosis in mouse islets. Transplant Proc 2015; 46:1150-5. [PMID: 24815149 DOI: 10.1016/j.transproceed.2013.12.028] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Revised: 12/01/2013] [Accepted: 12/11/2013] [Indexed: 11/24/2022]
Abstract
BACKGROUND The transplantation of isolated islets is thought to be an attractive approach for curative treatment of diabetes mellitus. Panax ginseng has been used in oriental countries for its pharmacologic effects, such as antidiabetic and antiinflammatory activities. 20(S)-ginsenoside Rg3 (Rg3), an active ingredient of ginseng saponins, has been reported to enhance insulin secretion-stimulating and antiapoptotic activities in pancreatic beta cells. We performed this study to examine the hypothesis that preoperative Rg3 administration can enhance islet cell function and antiapoptosis before islet transplantation. METHODS Balb/c mice were randomly divided into 2 groups according to the administration of Rg3 after islet isolation. Mouse islets were cultured in medium supplemented with or without Rg3. In vitro, islet viability and function were assessed. After treatment of islets with a cytokine cocktail (tumor necrosis factor α, interferon-γ, and interleukin-1β), cell viability, function, and apoptosis were assessed. RESULTS Cell viability was similar between the 2 groups. Islets cultured in medium supplemented with Rg3 showed 2.3-fold higher glucose-induced insulin secretion than islets cultured in medium without Rg3. After treatment with a cytokine cocktail, glucose-induced insulin release, total insulin content of islets, and apoptosis were significantly improved in Rg3-treated islets compared with cytokine-treated islets. Cytokine-treated islets produced significantly higher levels of nitric oxide (NO) than islets treated with Rg3. CONCLUSIONS These results suggest that preoperative Rg3 administration enhanced islet function before islet transplantation and attenuated both cytokine-induced damage associated with NO production and apoptosis. Rg3 administration might be a prospective management to enhanced islet function and ameliorate early inflammation after transplantation.
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Affiliation(s)
- S S Kim
- Department of Anesthesia and Pain Medicine, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea
| | - H J Jang
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea.
| | - M Y Oh
- Department of Surgery, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea
| | - D W Eom
- Department of Pathology, Ulsan University College of Medicine, Gangneung Asan Hospital, South Korea
| | - K S Kang
- College of Korean Medicine, Gachon University, Seongnam, South Korea
| | - Y J Kim
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, South Korea
| | - J H Lee
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, South Korea
| | - J Y Ham
- Natural Medicine Center, Korea Institute of Science and Technology (KIST), Gangneung, South Korea
| | - S Y Choi
- Asan Medical Center, Seoul, South Korea
| | - Y M Wee
- Asan Medical Center, Seoul, South Korea
| | - Y H Kim
- Asan Medical Center, Seoul, South Korea
| | - D J Han
- Asan Medical Center, Seoul, South Korea
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Yoda A, Adelmant G, Tamburini J, Chapuy B, Shindoh N, Yoda Y, Weigert O, Kopp N, Wu SC, Kim SS, Liu H, Tivey T, Christie AL, Elpek KG, Card J, Gritsman K, Gotlib J, Deininger MW, Makishima H, Turley SJ, Javidi-Sharifi N, Maciejewski JP, Jaiswal S, Ebert BL, Rodig SJ, Tyner JW, Marto JA, Weinstock DM, Lane AA. Mutations in G protein β subunits promote transformation and kinase inhibitor resistance. Nat Med 2014; 21:71-5. [PMID: 25485910 PMCID: PMC4289115 DOI: 10.1038/nm.3751] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [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: 05/01/2014] [Accepted: 10/17/2014] [Indexed: 12/18/2022]
Abstract
Activating mutations in genes encoding G protein α (Gα) subunits occur in 4-5% of all human cancers, but oncogenic alterations in Gβ subunits have not been defined. Here we demonstrate that recurrent mutations in the Gβ proteins GNB1 and GNB2 confer cytokine-independent growth and activate canonical G protein signaling. Multiple mutations in GNB1 affect the protein interface that binds Gα subunits as well as downstream effectors and disrupt Gα interactions with the Gβγ dimer. Different mutations in Gβ proteins clustered partly on the basis of lineage; for example, all 11 GNB1 K57 mutations were in myeloid neoplasms, and seven of eight GNB1 I80 mutations were in B cell neoplasms. Expression of patient-derived GNB1 variants in Cdkn2a-deficient mouse bone marrow followed by transplantation resulted in either myeloid or B cell malignancies. In vivo treatment with the dual PI3K-mTOR inhibitor BEZ235 suppressed GNB1-induced signaling and markedly increased survival. In several human tumors, mutations in the gene encoding GNB1 co-occurred with oncogenic kinase alterations, including the BCR-ABL fusion protein, the V617F substitution in JAK2 and the V600K substitution in BRAF. Coexpression of patient-derived GNB1 variants with these mutant kinases resulted in inhibitor resistance in each context. Thus, GNB1 and GNB2 alterations confer transformed and resistance phenotypes across a range of human tumors and may be targetable with inhibitors of G protein signaling.
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Affiliation(s)
- Akinori Yoda
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Guillaume Adelmant
- 1] Department of Cancer Biology and Blais Proteomics Center, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA. [2] Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA
| | - Jerome Tamburini
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Bjoern Chapuy
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Nobuaki Shindoh
- 1] Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA. [2] Drug Discovery Research, Astellas Pharma Inc., Tsukuba, Ibaraki, Japan
| | - Yuka Yoda
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Oliver Weigert
- Department of Medicine III, Campus Grosshadern, Ludwig-Maximilians-University, and Helmholtz Center, Munich, Germany
| | - Nadja Kopp
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Shuo-Chieh Wu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Sunhee S Kim
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Huiyun Liu
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Trevor Tivey
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Amanda L Christie
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Kutlu G Elpek
- 1] Department of Cancer Immunology and AIDS, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA. [2] Jounce Therapeutics, Inc., Cambridge, Massachusetts, USA
| | - Joseph Card
- Department of Cancer Biology and Blais Proteomics Center, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Kira Gritsman
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Jason Gotlib
- Division of Hematology, Stanford Cancer Institute, Stanford University School of Medicine, Stanford, California, USA
| | - Michael W Deininger
- Division of Hematology and Hematologic Malignancies, Huntsman Cancer Institute, The University of Utah, Salt Lake City, Utah, USA
| | - Hideki Makishima
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Shannon J Turley
- Department of Cancer Immunology and AIDS, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
| | - Nathalie Javidi-Sharifi
- Department of Cell, Developmental and Cancer Biology, Oregon Health and Science University, Knight Cancer Institute, Portland, Oregon, USA
| | - Jaroslaw P Maciejewski
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Siddhartha Jaiswal
- 1] Department of Pathology, Massachusetts General Hospital, Boston, Massachusetts, USA. [2] Division of Hematology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Benjamin L Ebert
- 1] Division of Hematology, Brigham and Women's Hospital, Boston, Massachusetts, USA. [2] Broad Institute, Cambridge, Massachusetts, USA
| | - Scott J Rodig
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Jeffrey W Tyner
- Department of Cell, Developmental and Cancer Biology, Oregon Health and Science University, Knight Cancer Institute, Portland, Oregon, USA
| | - Jarrod A Marto
- 1] Department of Cancer Biology and Blais Proteomics Center, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA. [2] Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts, USA
| | - David M Weinstock
- 1] Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA. [2] Broad Institute, Cambridge, Massachusetts, USA
| | - Andrew A Lane
- Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts, USA
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Kim SS, Mancuso CA, Huang WT, Erkan D. Social capital: a novel platform for understanding social determinants of health in systemic lupus erythematosus. Lupus 2014; 24:122-9. [PMID: 25199806 DOI: 10.1177/0961203314550224] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The objective of this paper is to introduce the concept of social capital as a unique and distinct entity from the traditional psychosocial factors of social support, depressive symptoms, and self-efficacy in systemic lupus erythematosus (SLE) patients, and to evaluate how social capital varies in an SLE sample according to demographic, clinical, and psychosocial variables. METHODS In a cross-sectional study, SLE patients completed the Adapted Social Capital Assessment Tool (A-SCAT), which measures cognitive and structural social capital. Patients also completed measures of social support, depressive symptoms, and SLE self-efficacy. Correlations were evaluated between social capital scores and demographic, clinical, and psychosocial variables. RESULTS We recruited 89 patients (mean age: 39 ± 15 years old, 83 (93): female; mean SLEDAI: 4; mean SLICC 1). The mean A-SCAT score was 34 ± 15 (normal: 0-71); higher scores were associated with female sex, older age, higher education, Caucasian race, and non-Medicaid insurance (p ≤ 0.03 for all); associations were attributable to structural social capital. Social capital was not associated with depressive symptoms, self-efficacy, or affectionate and interaction social support, but was associated with informational and tangible social support (r = 0.39, r = 0.26, respectively, p ≤ 0.02). There were no associations between SLEDAI and SLICC and social capital, social support, and depressive symptoms. CONCLUSIONS Social capital is a novel construct that, like other traditional psychosocial measures, addresses aspects of SLE not reflected by markers of disease activity. Social capital, however, is distinct from traditional psychosocial measures and offers a new platform on which ideas of social connectedness can broaden our understanding of health and chronic illness.
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Affiliation(s)
- S S Kim
- Department of Rheumatology, Lehigh Valley Health Network, USA
| | - C A Mancuso
- Department of Rheumatology, Hospital for Special Surgery, USA
| | - W-T Huang
- Department of Rheumatology, Hospital for Special Surgery, USA
| | - D Erkan
- Department of Rheumatology, Hospital for Special Surgery, USA
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Park SY, Kim J, Kim BW, Wang HJ, Kim SS, Cheong JY, Cho SW, Won JH. Embolization of percutaneous transhepatic portal venous access tract with N-butyl cyanoacrylate. Br J Radiol 2014; 87:20140347. [PMID: 25027034 DOI: 10.1259/bjr.20140347] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVE To evaluate the safety and feasibility of N-butyl cyanoacrylate (N-BCA) embolization of percutaneous transhepatic portal venous access tract and to establish an appropriate technique. METHODS 40 consecutive patients underwent percutaneous transhepatic portal venous intervention for various reasons. Embolization of percutaneous transhepatic portal venous access tract was performed after the procedure in all of the patients using N-BCA and Lipiodol® (Lipiodol Ultra Fluide; Laboratoire Guerbet, Aulnay-sous-Bois, France) mixture. Immediate ultrasonography and fluoroscopy were performed to evaluate perihepatic haematoma formation and unintended embolization of more than one segmental portal vein. Follow-up CT was performed, and haemoglobin and haematocrit levels were checked to evaluate the presence of bleeding. RESULTS Immediate haemostasis was achieved in all of the patients, without development of perihepatic haematoma or unintended embolization of more than one segmental portal vein. Complete embolization of percutaneous access tract was confirmed in 39 out of 40 patients by CT. Seven patients showed decreased haemoglobin and haematocrit levels. Other complications included mild pain at the site of embolization and mild fever, which resolved after conservative management. 16 patients died during the follow-up period owing to progression of the underlying disease. CONCLUSION Embolization of percutaneous transhepatic portal vein access tract with N-BCA is feasible and technically safe. With the appropriate technique, N-BCA can be safely used as an alternate embolic material since it is easy to use and inexpensive compared with other embolic materials. ADVANCES IN KNOWLEDGE This is the first study to investigate the efficacy of N-BCA for percutaneous transhepatic portal venous access tract embolization.
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Affiliation(s)
- S Y Park
- 1 Department of Radiology, Ajou University School of Medicine, Suwon, Republic of Korea
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Jeon YK, Shin MJ, Kim WJ, Kim SS, Kim BH, Kim SJ, Kim YK, Shin YB, Kim IJ. The relationship between pulmonary function and bone mineral density in healthy nonsmoking women: the Korean National Health and Nutrition Examination Survey (KNHANES) 2010. Osteoporos Int 2014; 25:1571-6. [PMID: 24577346 DOI: 10.1007/s00198-014-2627-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 01/20/2014] [Indexed: 10/25/2022]
Abstract
UNLABELLED The aim of this study was to examine the association between pulmonary function and bone mineral density (BMD) in subjects who had never smoked. Pulmonary function was associated with BMD in premenopausal, but not postmenopausal, women. INTRODUCTION It has been reported that low bone mass is common in patients with pulmonary disorders such as chronic obstructive pulmonary disease. However, in healthy nonsmoking women, the relationship between bone mass and pulmonary function has yet to be clarified. The object of this study was to determine whether pulmonary function is related to BMD in healthy nonsmoking women based on menopausal status. METHODS This study was a cross-sectional study based on data obtained from the Korean National Health and Nutrition Examination Survey (KNHANES), a nationwide representative survey conducted by the Korean Ministry of Health and Welfare in 2010. This study included 456 subjects who had never smoked and analyzed data concerning pulmonary function and BMD. RESULTS Functional vital capacity (FVC) and forced expiratory volume in 1 s (FEV1) were correlated with BMD at lumbar spine, femur neck (FN), and total hip in premenopausal women (p = 0.030, p = 0.003, p = 0.019, respectively, for FVC; p = 0.015, p = 0.006, p = 0.059, respectively, for FEV1). However, FVC and FEV1 were only correlated with BMD at FN in postmenopausal women (p = 0.003 for FVC; p = 0.006 for FEV1). Body mass index (BMI), FVC, and FEV1 were significantly related with BMD at FN, even after adjusting for age and other confounding factors (β = 0.334, p < 0.001; β = 0.145, p = 0.017; and β = 0.129, p = 0.037, respectively) in premenopausal women. However, only age and BMI were correlated with BMD at FN (β = -0.268, p = 0.001 and β = 0.384, p > 0.001) in postmenopausal women after adjusting for confounding factors. CONCLUSIONS Pulmonary function, including FVC and FEV1 are associated with BMD at FN in healthy nonsmoking premenopausal women but not in postmenopausal women.
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Affiliation(s)
- Y K Jeon
- Division of Endocrinology, Department of Internal Medicine, Pusan National University School of Medicine, Busan, Korea
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Lee SL, Lee HH, Ko YH, Song KY, Park CH, Jeon HM, Kim SS. Relevance of hepatoduodenal ligament lymph nodes in resectional surgery for gastric cancer. Br J Surg 2014; 101:518-22. [PMID: 24615472 DOI: 10.1002/bjs.9438] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/18/2013] [Indexed: 12/22/2022]
Abstract
BACKGROUND Hepatoduodenal lymph node (HDLN) positivity is considered distant metastasis in gastric cancer according to the seventh American Joint Committee on Cancer (AJCC) classification. In contrast, the International Union Against Cancer seventh edition and the Japanese Gastric Cancer Association both consider HDLN as a regional lymph node that can be included in the context of a curative resection. The purpose of this study was to determine whether there was justification for considering HDLN involvement as a distant metastasis for which resectional surgery could not have survival benefit. METHODS This study enrolled consecutive patients with gastric cancer having D2 or greater resections, with removal and pathological assessment of the HDLN, between 1989 and 2009. The pathological stage of all patients was determined based on the seventh AJCC criteria, with HDLN included as a regional lymph node. RESULTS A total of 1872 patients had their HDLN removed, of whom 68 had a metastatic lymph node in the hepatoduodenal ligament. The 5-year survival rate of these 68 patients was 30 per cent, compared with 47·7 per cent for those with stage III (P < 0·001) and 9·8 per cent for those with stage IV (P = 0·007) HDLN-negative tumours. The 5-year survival rate of 41 patients with HDLN metastasis and no evidence of distant metastasis at any other site was significantly higher than that among 120 patients with stage IV disease without HDLN metastasis (P < 0·001), whereas 5-year survival did not differ between the 41 patients with stage I-III disease with HDLN metastasis and 568 patients with stage III tumours without HDLN metastasis (P = 0·184). HDLN metastasis was not a significant factor for survival in multivariable analysis. CONCLUSION It is inappropriate to include the HDLN in the distant metastatic lymph node group in gastric cancer. The seventh AJCC criteria for node grouping should be revised.
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Affiliation(s)
- S L Lee
- Department of Radiology, College of Medicine, Catholic University of Korea, Seoul, Korea
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Noh JM, Park W, Suh CO, Keum KC, Kim YB, Shin KH, Kim K, Chie EK, Ha SW, Kim SS, Ahn SD, Shin HS, Kim JH, Lee HS, Lee NK, Huh SJ, Choi DH. Is elective nodal irradiation beneficial in patients with pathologically negative lymph nodes after neoadjuvant chemotherapy and breast-conserving surgery for clinical stage II-III breast cancer? A multicentre retrospective study (KROG 12-05). Br J Cancer 2014; 110:1420-6. [PMID: 24481403 PMCID: PMC3960607 DOI: 10.1038/bjc.2014.26] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [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: 11/05/2013] [Revised: 12/29/2013] [Accepted: 01/08/2014] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND To evaluate the effects of elective nodal irradiation (ENI) in clinical stage II-III breast cancer patients with pathologically negative lymph nodes (LNs) (ypN0) after neoadjuvant chemotherapy (NAC) followed by breast-conserving surgery (BCS) and radiotherapy (RT). METHODS We retrospectively analysed 260 patients with ypN0 who received NAC followed by BCS and RT. Elective nodal irradiation was delivered to 136 (52.3%) patients. The effects of ENI on survival outcomes were evaluated. RESULTS After a median follow-up period of 66.2 months (range, 15.6-127.4 months), 26 patients (10.0%) developed disease recurrence. The 5-year locoregional recurrence-free survival and disease-free survival (DFS) for all patients were 95.5% and 90.5%, respectively. Pathologic T classification (0-is vs 1 vs 2-4) and the number of LNs sampled (<13 vs ≥13) were associated with DFS (P=0.0086 and 0.0012, respectively). There was no significant difference in survival outcomes according to ENI. Elective nodal irradiation also did not affect survival outcomes in any of the subgroups according to pathologic T classification or the number of LNs sampled. CONCLUSIONS ENI may be omitted in patients with ypN0 breast cancer after NAC and BCS. But until the results of the randomised trials are available, patients should be put on these trials.
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Affiliation(s)
- J M Noh
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 135-710, Republic of Korea
| | - W Park
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 135-710, Republic of Korea
| | - C-O Suh
- Department of Radiation Oncology, Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - K C Keum
- Department of Radiation Oncology, Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - Y B Kim
- Department of Radiation Oncology, Yonsei Cancer Center, Severance Hospital, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul 120-752, Republic of Korea
| | - K H Shin
- Proton Therapy Center, Research Institute and Hospital, National Cancer Center, 323 Ilsan-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 410-769, Republic of Korea
| | - K Kim
- Department of Radiation Oncology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 110-799, Republic of Korea
| | - E K Chie
- Department of Radiation Oncology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 110-799, Republic of Korea
| | - S W Ha
- Department of Radiation Oncology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 110-799, Republic of Korea
| | - S S Kim
- Department of Radiation Oncology, Asan Medical Center, University of Ulsan, College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Republic of Korea
| | - S D Ahn
- Department of Radiation Oncology, Asan Medical Center, University of Ulsan, College of Medicine, 88 Olympic-ro 43-gil, Songpa-gu, Seoul 138-736, Republic of Korea
| | - H S Shin
- Department of Radiation Oncology, Bundang CHA Hospital, School of Medicine, CHA University, 59 Yatap-ro, Bundang-gu, Seongnam-si, Gyeonggi-do 463-712, Republic of Korea
| | - J H Kim
- Department of Radiation Oncology, Dongsan Medical Center, Keimyung University School of Medicine, 56 Dalseong-ro, Jung-gu, Daegu 700-712, Republic of Korea
| | - H-S Lee
- Department of Radiation Oncology, Dong-A University Hospital, Dong-A University School of Medicine, 26 Daesingongwon-ro, Seo-gu, Busan 602-715, Republic of Korea
| | - N K Lee
- Department of Radiation Oncology, Korea Medical Center, Korea University School of Medicine, 73 Inchon-ro, Seongbuk-gu, Seoul 136-705, Republic of Korea
| | - S J Huh
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 135-710, Republic of Korea
| | - D H Choi
- Department of Radiation Oncology, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul 135-710, Republic of Korea
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Park NS, Kim SS, Lee YJ, Wang CK. Effects of longitudinal baffles on particles settling in a sedimentation basin. Water Sci Technol 2014; 69:1212-1218. [PMID: 24647186 DOI: 10.2166/wst.2013.818] [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: 06/03/2023]
Abstract
This study was conducted to evaluate the effects of longitudinal baffles on particles settling performance within a full-scale sedimentation basin with a flow rate of 1,000 m(3)/hr. Comparative experiments on turbidity removal efficiency and sludge deposit distribution were performed in longitudinally baffled and non-baffled sedimentation basins. The turbidity removal rate in the baffled sedimentation basin was observed to be higher than that in the non-baffled basin. In addition, the depth of the sludge deposit in the baffled sedimentation basin was approximately 20% less than that in the non-baffled sedimentation basin, and the sludge concentration was 10% higher. To explain these results and to further investigate the effects of longitudinal baffles, the authors performed computational fluid dynamics (CFD) simulation for both basin types. The results of this CFD simulation indicated that the flow, particularly near the outlet orifice, was more stable in the longitudinally baffled sedimentation basin. Moreover, it could be concluded that the longitudinal baffle enables a fully developed flow and is thus more effective for sedimentation.
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Affiliation(s)
- N S Park
- Department of Civil Engineering, Gyeongsang National University, 501, Jinju-daero, Jinju, 660-701, Republic of Korea E-mail:
| | - S S Kim
- Water Research Center, Korea Institute of Water and Environment, K-water, 462-1, Jeonmin-Dong, Yusung-Gu, Daejeon, 305-730, Republic of Korea
| | - Y J Lee
- Water Research Center, Korea Institute of Water and Environment, K-water, 462-1, Jeonmin-Dong, Yusung-Gu, Daejeon, 305-730, Republic of Korea
| | - C K Wang
- Department of Environmental Engineering, Chungnam National University, 99 Daehak-Ro, Yusung-Gu, Daejeon, 305-764, Republic of Koera
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Jeong K, Kim H, Kim K, Kim SJ, Hahn BS, Jahng GH, Yoon KS, Kim SS, Ha J, Kang I, Choe W. Cyclophilin B is involved in p300-mediated degradation of CHOP in tumor cell adaptation to hypoxia. Cell Death Differ 2013; 21:438-50. [PMID: 24270407 DOI: 10.1038/cdd.2013.164] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2013] [Revised: 09/17/2013] [Accepted: 10/01/2013] [Indexed: 11/09/2022] Open
Abstract
The regulation of CCAAT/enhancer-binding protein-homologous protein (CHOP), an endoplasmic reticulum (ER) stress-response factor, is key to cellular survival. Hypoxia is a physiologically important stress that induces cell death in the context of the ER, especially in solid tumors. Although our previous studies have suggested that Cyclophilin B (CypB), a molecular chaperone, has a role in ER stress, currently, there is no direct information supporting its mechanism under hypoxia. Here, we demonstrate for the first time that CypB is associated with p300 E4 ligase, induces ubiquitination and regulates the proteasomal turnover of CHOP, one of the well-known pro-apoptotic molecules under hypoxia. Our findings show that CypB physically interacts with the N-terminal α-helix domain of CHOP under hypoxia and cooperates with p300 to modulate the ubiquitination of CHOP. We also show that CypB is transcriptionally induced through ATF6 under hypoxia. Collectively, these findings demonstrate that CypB prevents hypoxia-induced cell death through modulation of ubiquitin-mediated CHOP protein degradation, suggesting that CypB may have an important role in the tight regulation of CHOP under hypoxia.
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Affiliation(s)
- K Jeong
- Department of Biochemistry and Molecular Biology (BK21 project), Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - H Kim
- Department of Biochemistry and Molecular Biology (BK21 project), Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - K Kim
- Department of Biochemistry and Molecular Biology (BK21 project), Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - S-J Kim
- Neurodegeneration Control Research Center, School of Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - B-S Hahn
- Department of Genetic Engineering, Kyung Hee University, Seoul, Korea
| | - G-H Jahng
- Department of Radiology, Kyung Hee University Hospital-Gangdong, School of Medicine, Kyung Hee University, Seoul 134-727, Korea
| | - K-S Yoon
- Department of Biochemistry and Molecular Biology (BK21 project), Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - S S Kim
- Department of Biochemistry and Molecular Biology (BK21 project), Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - J Ha
- Department of Biochemistry and Molecular Biology (BK21 project), Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - I Kang
- Department of Biochemistry and Molecular Biology (BK21 project), Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Kyung Hee University, Seoul 130-701, Korea
| | - W Choe
- Department of Biochemistry and Molecular Biology (BK21 project), Medical Research Center for Bioreaction to Reactive Oxygen Species and Biomedical Science Institute, School of Medicine, Kyung Hee University, Seoul 130-701, Korea
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Yoda A, Adelmant G, Shindoh N, Chapuy B, Yoda Y, Weigert O, Kopp N, Wu SC, Kim SS, Liu H, Tivey T, Tyner JW, Gotlib J, Deininger MW, Turley S, Marto JA, Lane AA, Weinstock DM. Abstract PR07: Novel oncogenic mutations in the beta subunit of heteromeric G-proteins identified by functional cDNA library screening. Mol Cancer Ther 2013. [DOI: 10.1158/1535-7163.targ-13-pr07] [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
Although next-generation sequencing can delineate the genetic alterations within a primary tumor specimen, it can be difficult to distinguish the small number of driver mutations from the large number of passenger mutations. To overcome this issue, we developed a system for identifying oncogenic alterations directly from tumor cells. In this system, retroviral cDNA libraries built from cancer cell lines and directly from primary cancer samples are transduced into BaF3 cells, an IL3-dependent B cell line. Transformation by oncogenes promotes IL3-independent survival, allowing for the isolation of individual transformed clones and sequencing of the integrated cDNA. In the past, we identified CRLF2 as a novel oncogene in acute lymphoblastic leukemia (Yoda et al. PNAS 2010). We have improved the method and demonstrated 100% sensitivity for isolating well-characterized oncogenes, including EGFR, HER2, RAS and ALK (Shindoh et al. PLoS One 2012). Recently, we isolated a mutated GNB1 K89E allele from a cDNA library generated from a primary blastic plasmacytoid dendritic cell neoplasm (BPDCN). BPDCN is a rare and aggressive leukemia with a dismal prognosis. GNB1 encodes the beta subunit of the heterotrimeric G-protein, a binding complex that transduces signals from G-protein coupled receptors to multiple downstream pathways. Gain-of-function mutations have been reported in alpha subunits of the G-protein, however, the contributions of beta subunits to cancer remains undefined. To investigate downstream signaling from GNB1 K89E, we performed gene expression profiling and mass spectrometry (MS)-based phosphoproteomics and found significant activation of RAS/MAPK and PI3K/AKT pathways in GNB1 K89E-expressing cells compared to isogenic cells expressing wild-type GNB1. To target GNB1 K89E signaling, we screened kinase inhibitors using a multiplex panel of small molecules and found selective sensitivity of GNB1 K89E cells to MEK and pan-PI3-kinase inhibitors. Next, we transduced GNB1 alleles into bone marrow cells from Cdkn2a-deficient mice and transplanted into wild-type recipient mice. Within 4 months after transplantation, all mice (n=10) that received bone marrow transduced with GNB1 K89E developed a lethal dendritic cell malignancy, confirming the transforming effects of GNB1 K89E in vivo. A search of published cancer mutations identified four cases with GNB1 I80T/N in chronic lymphocytic leukemia or B-cell lymphomas, five cases with GNB1 K57E/T in myeloid malignancies, one case of GNB1 K89E in acute lymphoblastic leukemia, and two cases with GNB2 M101T/V in ovarian cancer. All of these alleles promoted GM-CSF-independent growth in human TF1 cells. Interestingly, the mutated codons are all located on the GNB1 molecular surface that is critical for interactions between GNB1 and both alpha subunits and downstream effectors. Immunoprecipitation followed by MS demonstrated that GNB1 K89E and I80T mutants failed to bind inhibitory G alpha subunits GNAI2 and GNAI3 as well as GNA11 that are bound by wild-type GNB1. Thus, gain-of-function mutations in G-protein beta subunits occur across a broad range of malignancies, can drive in vivo transformation, and activate targetable downstream kinases by modifying essential interactions with partner proteins.
Citation Information: Mol Cancer Ther 2013;12(11 Suppl):PR07.
Citation Format: Akinori Yoda, Guillaume Adelmant, Nobuaki Shindoh, Bjoern Chapuy, Yuka Yoda, Oliver Weigert, Nadja Kopp, Shuo-Chieh Wu, Sunhee S. Kim, Huiyun Liu, Trevor Tivey, Jeffrey W. Tyner, Jason Gotlib, Michael W. Deininger, Shannon Turley, Jarrod A. Marto, Andrew A. Lane, David M. Weinstock. Novel oncogenic mutations in the beta subunit of heteromeric G-proteins identified by functional cDNA library screening. [abstract]. In: Proceedings of the AACR-NCI-EORTC International Conference: Molecular Targets and Cancer Therapeutics; 2013 Oct 19-23; Boston, MA. Philadelphia (PA): AACR; Mol Cancer Ther 2013;12(11 Suppl):Abstract nr PR07.
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Affiliation(s)
| | | | | | | | - Yuka Yoda
- 1Dana-Farber Cancer Inst., Boston, MA
| | | | | | | | | | | | | | - Jeffrey W. Tyner
- 2Oregon Health & Science University, Knight Cancer Institute, Portland, OR
| | - Jason Gotlib
- 3Stanford University School of Medicine, Stanford, CA
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Kim SS, Jackson-Boeters L, Darling MR, Rieder MJ, Hamilton DW. Nifedipine induces periostin expression in gingival fibroblasts through TGF-beta. J Dent Res 2013; 92:1022-8. [PMID: 24004653 DOI: 10.1177/0022034513503659] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [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: 12/11/2022] Open
Abstract
Gingival enlargement is a fibrotic condition that can arise from systemic administration of the dihydropyridine calcium channel blocker nifedipine. Periostin, a transforming growth factor-beta (TGF-β)-inducible matricellular protein, has been associated with fibrosis in numerous tissues, but its expression has never been examined in nifedipine-influenced gingival enlargement (NIGE). The objective of this study was to assess if periostin up-regulation is associated with NIGE and whether nifedipine induces periostin expression in gingival fibroblasts. In NIGE tissue (n = 6), periostin is overexpressed in the gingival connective tissue compared with healthy control tissue (n = 6). The transcription factor p-SMAD2/3, which is associated with canonical TGF-β signaling, localizes to the nuclei in both HGFs and oral epithelial cells in NIGE tissues, but not in control healthy tissue. In vitro culture of HGFs with 30 and 100 ng/mL of nifedipine significantly increased periostin mRNA and protein levels, which correlated with increased levels of active TGF-β and increased phosphorylation and nuclear localization of SMAD3. Blocking of canonical TGF-β signaling through inhibition of the TGF-β receptor I with SB431542 significantly reduced nifedipine-induced SMAD3 phosphorylation and periostin expression. Our results demonstrate that nifedipine up-regulates periostin in HGFs in a TGF-β-dependent manner.
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Affiliation(s)
- S S Kim
- Department of Anatomy & Cell Biology, Children's Health Research Institute, London, ON, Canada
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