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Kim YH, Park MR, Kim SY, Kim MY, Kim KW, Sohn MH. Respiratory microbiome profiles are associated with distinct inflammatory phenotype and lung function in children with asthma. J Investig Allergol Clin Immunol 2023:0. [PMID: 37260034 DOI: 10.18176/jiaci.0918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
BACKGROUND Respiratory microbiome studies have fostered our understanding of various phenotypes and endotypes of heterogeneous asthma. However, the relationship between the respiratory microbiome and clinical phenotypes in children with asthma remains unclear. We aimed to identify microbiome-driven clusters reflecting the clinical features of asthma and their dominant microbiotas in children with asthma. METHODS Induced sputum was collected from children with asthma, and microbiome profiles were generated via sequencing of the V3-V4 region of the 16S rRNA gene. Cluster analysis was performed using the partitioning around medoid clustering method. The dominant microbiota in each cluster was determined using the Linear Discriminant Effect Size analysis. Each cluster was analyzed for association among the dominant microbiota, clinical phenotype, and inflammatory cytokine. RESULTS Eighty-three children diagnosed with asthma were evaluated. Among four clusters reflecting the clinical characteristics of asthma, cluster 1, dominated by Haemophilus and Neisseria, demonstrated lower post-bronchodilator (BD) forced expiratory volume in 1 second (FEV1)/forced vital capacity (FVC) than that in the other clusters and more mixed granulocytic asthma. Neisseria negatively correlated with pre-BD and post-BD FEV1/FVC. Haemophilus and Neisseria positively correlated with programmed death-ligand (PD-L)1. CONCLUSION To our knowledge, this study is the first to analyze the relationship between an unbiased microbiome-driven cluster and clinical phenotype in children with asthma. The cluster dominated by Haemophilus and Neisseria showed fixed airflow obstruction and mixed granulocytic asthma, which correlated with PD-L1 levels. Thus, microbiome-driven unbiased clustering can help identify new asthma phenotypes related to endotypes in childhood asthma.
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Affiliation(s)
- Y H Kim
- Department of Pediatrics, Gangnam Severance Hospital, Seoul
- Institute of Allergy, Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul
| | - M R Park
- Department of Pediatrics, Gangnam Severance Hospital, Seoul
- Institute of Allergy, Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul
| | - S Y Kim
- Institute of Allergy, Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul
- Department of Pediatrics, Severance Hospital, Seoul
| | - M Y Kim
- Institute of Allergy, Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul
- Department of Pediatrics, Yongin Severance Hospital, Yongin, Korea
| | - K W Kim
- Institute of Allergy, Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul
- Department of Pediatrics, Severance Hospital, Seoul
| | - M H Sohn
- Institute of Allergy, Severance Biomedical Science Institute, Brain Korea 21 Project for Medical Science, Yonsei University College of Medicine, Seoul
- Department of Pediatrics, Severance Hospital, Seoul
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Kim KH, Lee JH, Lee M, Kim HG, Do YR, Park Y, Oh SY, Shin HJ, Kim WS, Park SK, Kong JH, Park MR, Yang DH, Kwak JY, Kang HJ, Mun YC, Won JH. Busulfan, Melphalan, and Etoposide (BuME) Showed an Equivalent Effect to Busulfan, Cyclophosphamide, and Etoposide (BuCE) as Conditioning Therapy for Autologous Stem Cell Transplantation in Patients with Relapsed or High-Risk Non-Hodgkin's Lymphoma: A Multicenter Randomized Phase II Study bythe Consortium for Improving Survival of Lymphoma (CISL). Cancer Res Treat 2023; 55:304-313. [PMID: 35381164 PMCID: PMC9873313 DOI: 10.4143/crt.2022.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Accepted: 03/29/2022] [Indexed: 02/04/2023] Open
Abstract
PURPOSE High-dose chemotherapy followed by autologous stem cell transplantation (ASCT) is the standard management for relapsed or high-risk non-Hodgkin's lymphoma (NHL). We reported the busulfan, melphalan, and etoposide (BuME) conditioning regimen was effective in patients with relapsed or high-risk NHL. Moreover, the busulfan, cyclophosphamide, and etoposide (BuCE) conditioning regimen has been used widely in ASCT for NHL. Therefore, based on these encouraging results, this randomized phase II multicenter trial compared the outcomes of BuME and BuCE as conditioning therapies for ASCT in patients with NHL. MATERIALS AND METHODS Patients were randomly assigned to receive either BuME (n=36) or BuCE (n=39). The BuME regimen was comprised of busulfan (3.2 mg/kg/day, intravenously) administered on days -7, -6, and -5, etoposide (400 mg/m2 intravenously) on days -5 and -4, and melphalan (50 mg/m2/day intravenously) on days -3 and -2. The BuCE regimen was comprised of busulfan (3.2 mg/kg/day intravenously) on days -7, -6, and -5, etoposide (400 mg/m2/day intravenously) on days -5 and -4, and cyclophosphamide (50 mg/kg/day intravenously) on days -3 and -2. The primary endpoint was 2-year progression-free survival (PFS). RESULTS Seventy-five patients were enrolled. Eleven patients (30.5%) in the BuME group and 13 patients (33.3%) in the BuCE group had disease progression or died. The 2-year PFS rate was 65.4% in the BuME group and 60.6% in the BuCE group (p=0.746). There were no non-relapse mortalities within 100 days after transplantation. CONCLUSION There were no significant differences in PFS between the two groups. Therefore, busulfan-based conditioning regimens, BuME and BuCE, may be important treatment substitutes for the BCNU-containing regimens.
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Affiliation(s)
- Kyoung Ha Kim
- Division of Hematology and Oncology, Department of Internal Medicine, Soonchunhyang University College of Medicine, Seoul,
Korea
| | - Jae Hoon Lee
- Deparment of Internal Medicine, Gil Medical Center, Gachon University College of Medicine, Incheon,
Korea
| | - Mark Lee
- Department of Internal Medicine, Konkuk University Medical Center and School of Medicine, Seoul,
Korea
| | - Hoon-Gu Kim
- Department of Internal Medicine, Institute of Health Sciences, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju,
Korea
| | - Young Rok Do
- Division of Hematology-Oncology, Department of Medicine, Dongsan Medical Center, Keimyung University, Daegu,
Korea
| | - Yong Park
- Division of Hematology/Oncology, Department of Internal Medicine, Korea University School of Medicine, Seoul,
Korea
| | - Sung Yong Oh
- Department of Internal Medicine, Dong-A University College of Medicine, Busan,
Korea
| | - Ho-Jin Shin
- Division of Hematology-Oncology, Department of Internal Medicine, Pusan National University School of Medicine and Medical Research Institute, Pusan National University Hospital, Busan,
Korea
| | - Won Seog Kim
- Division of Hematology and Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul,
Korea
| | - Seong Kyu Park
- Division of Hematology and Oncology, Department of Internal Medicine, Soonchunhyang University College of Medicine, Bucheon,
Korea
| | - Jee Hyun Kong
- Division of Oncology and Hematology, Department of Internal Medicine, Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju,
Korea
| | - Moo-Rim Park
- Department of Internal Medicine, Wonkwang University School of Medicine, Iksan,
Korea
| | - Deok-Hwan Yang
- Department of Hematology/Oncology, Chonnam National University Hwasun Hospital, Hwasun,
Korea
| | - Jae-Yong Kwak
- Division of Hematology/Oncology, Department of Internal Medicine, Jeonbuk National University Medical School, Jeonju,
Korea
| | - Hye Jin Kang
- Division of Hematology-Oncology, Department of Internal Medicine, Korea Cancer Center Hospital, Korea Institute of Radiological and Medical Science, Seoul,
Korea
| | - Yeung-Chul Mun
- Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul,
Korea
| | - Jong-Ho Won
- Division of Hematology and Oncology, Department of Internal Medicine, Soonchunhyang University College of Medicine, Seoul,
Korea
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Ahn SY, Son SK, Lee GH, Kim I, Cheong JW, Lee WS, Kim BS, Jo DY, Jung CW, Seong CM, Lee JH, Yuh YJ, Kim MK, Ryoo HM, Park MR, Cho SH, Kim HG, Zang DY, Park J, Kim H, Lee S, Kim SH, Chang MH, Lee HS, Choi CW, Kwon J, Lim SN, Oh SJ, Joo I, Kim DW. Safety and efficacy of nilotinib in adult patients with chronic myeloid leukemia: a post-marketing surveillance study in Korea. Blood Res 2022; 57:144-151. [PMID: 35678158 PMCID: PMC9242833 DOI: 10.5045/br.2022.2021137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 11/09/2021] [Accepted: 05/04/2022] [Indexed: 12/02/2022] Open
Abstract
Background Nilotinib is a tyrosine kinase inhibitor approved by the Ministry of Food and Drug Safety for frontline and 2nd line treatment of Philadelphia chromosome-positive chronic myeloid leukemia (Ph+ CML). This study aimed to confirm the safety and efficacy of nilotinib in routine clinical practice within South Korea. Methods An open-label, multicenter, single-arm, 12-week observational post-marketing surveillance (PMS) study was conducted on 669 Korean adult patients with Ph+ CML from December 24, 2010, to December 23, 2016. The patients received nilotinib treatment in routine clinical practice settings. Safety was evaluated by all types of adverse events (AEs) during the study period, and efficacy was evaluated by the complete hematological response (CHR) and cytogenetic response. Results During the study period, AEs occurred in 61.3% (410 patients, 973 events), adverse drug reactions (ADRs) in 40.5% (271/669 patients, 559 events), serious AEs in 4.5% (30 patients, 37 events), and serious ADRs in 0.7% (5 patients, 8 events). Furthermore, unexpected AEs occurred at a rate of 6.9% (46 patients, 55 events) and unexpected ADRs at 1.2% (8 patients, 8 events). As for the efficacy results, CHR was achieved in 89.5% (442/494 patients), and minor cytogenetic response or major cytogenetic response was achieved in 85.8% (139/162 patients). Conclusion This PMS study shows consistent results in terms of safety and efficacy compared with previous studies. Nilotinib was well tolerated and efficacious in adult Korean patients with Ph+ CML in routine clinical practice settings.
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Affiliation(s)
- Seo-Yeon Ahn
- Department of Hematology-Oncology, Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Sang Kyun Son
- Department of Hematology-Oncology, School of Medicine, Kyungpook National University, Daegu, Department of Internal Medicine, Seoul, Korea
| | - Gyu Hyung Lee
- Department of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, Korea
| | - Inho Kim
- Department of Internal Medicine, Seoul National University Hospital, Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - June-Won Cheong
- Division of Hematology, Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea
| | - Won Sik Lee
- Department of Internal Medicine, Inje University Busan Paik Hospital, Busan, Korea
| | - Byung Soo Kim
- Division of Hematology, Department of Internal Medicine, Korea University Anam Hospital, Seoul, Korea
| | - Deog-Yeon Jo
- Department of Internal Medicine, College of Medicine, Chungnam National Univeristy, Daejeon, Korea
| | - Chul Won Jung
- Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Chu Myoung Seong
- Department of Hematology and Oncology, Ewha Womans University College of Medicine, Seoul, Korea
| | - Jae Hoon Lee
- Division of Hematology, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
| | - Young Jin Yuh
- Department of Internal Medicine, Inje University, Sanggye-Paik Hospital, Seoul, Korea
| | - Min Kyoung Kim
- Department of Internal Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Hun-Mo Ryoo
- Division of Hematology-Oncology, Department of Internal Medicine, Daegu Catholic University Medical Center, Daegu, Korea
| | - Moo-Rim Park
- Department of Hematology-Oncology, Wonkwang University School of Medicine, Iksan, Korea
| | - Su-Hee Cho
- Division of Hematology-Oncology, Department of Internal Medicine, Pusan National University Yangsan Hospital, Yangsan, Korea
| | - Hoon-Gu Kim
- Department of Internal Medicine, Gyeongsang Institute of Health Sciences, Gyeongsang National University College of Medicine and Gyeongsang National University Changwon Hospital, Changwon, Korea
| | - Dae Young Zang
- Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, Korea
| | - Jinny Park
- Division of Hematology, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
| | - Hawk Kim
- Division of Hematology, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, Korea
| | - Seryeon Lee
- Department of Internal Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Sung-Hyun Kim
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, Korea
| | - Myung Hee Chang
- Division of Oncology-Hematology, Department of Internal Medicine, National Health Insurance Service Ilsan Hospital, Goyang, Korea
| | - Ho Sup Lee
- Division of Oncology-Hematology, Department of Internal Medicine, Kosin University College of Medicine, Busan, Korea
| | - Chul Won Choi
- Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Jihyun Kwon
- Department of Internal Medicine, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Sung-Nam Lim
- Department of Internal Medicine, Inje University College of Medicine, Haeundae Paik Hospital, Busan, Korea
| | - Suk-Joong Oh
- Department of Internal Medicine, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, Korea
| | | | - Dong-Wook Kim
- Department of Hematology, Uijeongbu Eulji Medical Center, Leukemia Omics Research Institute, Eulji University Uijeongbu Campus, Uijeongbu, Korea
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Won JH, Kim KH, Yoon SY, Lee JH, Lee M, Kim HG, Do YR, Park Y, Oh SY, Shin HJ, Kim WS, Park SK, Kong J, Park MR, Yang DH, Kwak JY, Kang HJ, Mun YC. Busulfan, Melphalan, and Etoposide (BuME) Showed an Equivalent Effect to Busulfan, Cyclophosphamide, and Etoposide (BuCE) As Conditioning Therapy for Autologous Transplantation in Patients with Relapsed or High Risk Non-Hodgkin Lymphoma: A Multicenter Randomized Phase II Study By the Consortium for Improving Survival of Lymphoma (CISL). Transplant Cell Ther 2022. [DOI: 10.1016/s2666-6367(22)00683-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Yun B, Maburutse BE, Kang M, Park MR, Park DJ, Kim Y, Oh S. Short communication: Dietary bovine milk-derived exosomes improve bone health in an osteoporosis-induced mouse model. J Dairy Sci 2020; 103:7752-7760. [PMID: 32622594 DOI: 10.3168/jds.2019-17501] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 04/14/2020] [Indexed: 12/13/2022]
Abstract
Osteoporosis is a systemic skeletal disease characterized by low bone mass and micro-architectural deterioration of bone tissue, with a consequent increase in bone fragility and fracture susceptibility. In an aged society with increased life expectancy, the incidence rate of osteoporosis is also rapidly increasing. Inadequate nutrition may negatively influence bone metabolism. Recently, many studies have investigated the functionality of milk-derived exosomes, which play important roles in cell-to-cell communication. However, there are few reports of how milk-derived exosomes influence osteoblast proliferation and differentiation. Here, we determined whether bovine colostrum-derived exosomes promote anti-osteoporosis in vitro and in vivo. Tartrate-resistant acid phosphatase-stained cells were significantly inhibited in Raw264.7 cells treated with exosomes, indicating reduced osteoclast differentiation. We induced osteoporosis in mice using glucocorticoid pellets after orally administering exosomes for 2 mo. Interestingly, the bone mineral density of exosome-fed mouse groups was significantly improved compared with the glucocorticoid-induced osteoporosis group without exosome treatment. In addition, Lactobacillus were decreased in the gut microbiota community of osteoporosis-induced mice, but the gut microbiota community composition was effectively restored by exosome intake. Taken together, we propose that exosomes isolated from bovine colostrum could be a potential candidate for osteoporosis prevention, bone remodeling improvement, and inhibition of bone resorption. To our knowledge, this is the first time that a protective effect of milk exosomes against osteoporosis has been demonstrated in vivo. Our results strongly suggest that bovine colostrum exosomes might be used as a prophylaxis to prevent the onset of osteoporosis. Indeed, our results offer promising alternative strategies in the nutritional management of age-related bone complications.
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Affiliation(s)
- B Yun
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 54896, Korea
| | - B E Maburutse
- Department of Animal Sciences and Health, Marondera University of Agricultural Sciences and Health, PO Box 35, Marondera, Zimbabwe
| | - M Kang
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea
| | - M R Park
- Department of Pharmacology and System Physiology, University of Cincinnati, OH 45267
| | - D J Park
- Korea Food Research Institute, Jeollabuk-do 55365, Korea
| | - Y Kim
- Department of Agricultural Biotechnology and Center for Food and Bioconvergence, and Research Institute of Agriculture and Life Science, Seoul National University, Seoul 08826, Korea.
| | - S Oh
- Department of Functional Food and Biotechnology, Jeonju University, Jeonju 55069, Korea.
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Lee GW, Park SW, Go SI, Kim HG, Kim MK, Min CK, Kwak JY, Bae SB, Yoon SS, Lee JJ, Kim KH, Nam SH, Mun YC, Kim HJ, Bae SH, Shin HJ, Lee JH, Park JS, Jeong SH, Lee MH, Lee HS, Park KW, Lee WS, Lee SM, Lee JO, Hyun MS, Jo DY, Lim SN, Lee JH, Kim H, Cho DY, Do YR, Kim JA, Park SK, Kim JS, Kim SJ, Yi HG, Moon JH, Choi CW, Kim SH, Kim BS, Park MR, Shim H, Song MK, Kim Y, Kim K. The Derived Neutrophil-to-Lymphocyte Ratio Is an Independent Prognostic Factor in Transplantation Ineligible Patients with Multiple Myeloma. Acta Haematol 2018; 140:146-156. [PMID: 30253397 DOI: 10.1159/000490488] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Accepted: 05/20/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND The neutrophil-to-lymphocyte ratio (NLR) is an independent prognostic marker in solid and hematological cancers. While the derived NLR (dNLR) was shown to be non-inferior to the NLR in large cohorts of patients with different cancer types, it has not been validated as a prognostic marker for multiple myeloma (MM) to date. METHODS Between May 22, 2011 and May 29, 2014, 176 patients with MM from 38 centers who were ineligible for autologous stem cell transplantation were analyzed. The dNLR was calculated using complete blood count differential data. The optimal dNLR cut-off value according to receiver operating characteristic analysis of overall survival (OS) was 1.51. All patients were treated with melphalan and prednisone combined with bortezomib. RESULTS The complete response rate was lower in the high dNLR group compared to the low dNLR group (7 vs. 26.1%, respectively; p = 0.0148); the corresponding 2-year OS rates were 72.2 and 84.7%, respectively (p = 0.0354). A high dNLR was an independent poor prognostic factor for OS (hazard ratio 2.217, 95% CI 1.015-4.842; p = 0.0458). CONCLUSION The dNLR is a readily available and cheaply obtained parameter in clinical studies, and shows considerable potential as a new prognostic marker for transplantation-ineligible patients with MM.
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Affiliation(s)
- Gyeong-Won Lee
- Department of Internal Medicine, Gyeongsang National University Hospital, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Sung Woo Park
- Department of Internal Medicine, Gyeongsang National University Hospital, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Se-Il Go
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Changwon, Republic of Korea
| | - Hoon-Gu Kim
- Department of Internal Medicine, Gyeongsang National University Changwon Hospital, Institute of Health Sciences, College of Medicine, Gyeongsang National University, Changwon, Republic of Korea
| | - Min Kyoung Kim
- Department of Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Chang-Ki Min
- Division of Hematology, Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jae-Yong Kwak
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - Sang-Byung Bae
- Department of Internal Medicine, Soonchunhyang University Hospital, Cheonan, Republic of Korea
| | - Sung-Soo Yoon
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Republic of Korea
| | - Je-Jung Lee
- Department of Hematology/Oncology, Chonnam National University Hwasun Hospital, Hwasun, Republic of Korea
| | - Ki Hwan Kim
- Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Republic of Korea
| | - Seung-Hyun Nam
- Department of Internal Medicine, VHS Medical Center, Seoul, Republic of Korea
| | - Yeung-Chul Mun
- Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Republic of Korea
| | - Hyo Jung Kim
- Department of Internal Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Republic of Korea
| | - Sung Hwa Bae
- Department of Internal Medicine, Catholic University of Daegu School of Medicine, Daegu, Republic of Korea
| | - Ho-Jin Shin
- Department of Internal Medicine, Division of Hematology/Oncology, School of Medicine, Medical Research Institute, Pusan National University Hospital, Busan, Republic of Korea
| | - Jung-Hee Lee
- Department of Hematology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Joon Seong Park
- Department of Hematology/Oncology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Seong Hyun Jeong
- Department of Hematology/Oncology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Mark Hong Lee
- Department of Internal Medicine, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul, Republic of Korea
| | - Ho Sup Lee
- Department of Hematology/Oncology, Kosin University College of Medicine, Busan, Republic of Korea
| | - Keon Woo Park
- Department of Internal Medicine, Dankook University College of Medicine, Cheonan, Republic of Korea
| | - Won-Sik Lee
- Department of Internal Medicine, Inje University Busan Paik Hospital, Busan, Republic of Korea
| | - Sang Min Lee
- Department of Internal Medicine, Inje University Busan Paik Hospital, Busan, Republic of Korea
| | - Jeong-Ok Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Republic of Korea
| | - Myung Soo Hyun
- Department of Medicine, Yeungnam University College of Medicine, Daegu, Republic of Korea
| | - Deog Yeon Jo
- Department of Hematology/Oncology, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Sung-Nam Lim
- Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Republic of Korea
| | - Jae Hoon Lee
- Division of Hematology, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea
| | - Hawk Kim
- Division of Hematology, Gachon University Gil Medical Center, Gachon University College of Medicine, Incheon, Republic of Korea
| | - Do-Yeun Cho
- Department of Internal Medicine, Konyang University Hospital, Daejeon, Republic of Korea
| | - Young Rok Do
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Republic of Korea
| | - Jeong-A Kim
- Department of Hematology, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Seong Kyu Park
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Republic of Korea
| | - Jin Seok Kim
- Division of Hematology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Soo-Jeong Kim
- Division of Hematology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Hyeon Gyu Yi
- Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine, Incheon, Republic of Korea
| | - Joon Ho Moon
- Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Chul Won Choi
- Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea
| | - Sung-Hyun Kim
- Department of Internal Medicine, Dong-A Medical Center, Dong-A University College of Medicine, Busan, Republic of Korea
| | - Byung Soo Kim
- Department of Hematology, Korea University Medical Center, Korea University College of Medicine, Seoul, Republic of Korea
| | - Moo-Rim Park
- Department of Internal Medicine, School of Medicine, Wonkwang University, Iksan, Republic of Korea
| | - Hyeok Shim
- Department of Internal Medicine, School of Medicine, Wonkwang University, Iksan, Republic of Korea
| | - Moo-Kon Song
- Department of Hemato-Oncology, Hanyang University Hanmaeum Changwon Hospital, Changwon, Republic of Korea
| | - Youngdoe Kim
- Medical Affairs, Janssen Korea, Seoul, Republic of Korea
| | - Kihyun Kim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Republic of Korea
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Kim J, Lee BS, Kim B, Na I, Lee J, Lee JY, Park MR, Kim H, Sohn I, Ahn K. Identification of atopic dermatitis phenotypes with good responses to probiotics (Lactobacillus plantarum CJLP133) in children. Benef Microbes 2018; 8:755-761. [PMID: 29035111 DOI: 10.3920/bm2017.0034] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The therapeutic effect of probiotics in atopic dermatitis (AD) remains controversial and varies according to the individual patient. We aimed to identify a population of AD patients with a good clinical response to probiotic treatment. We recruited 76 children with a median age of 7.1 years who suffered from moderate to severe AD. After a 2-week washout period, all patients were given Lactobacillus plantarum CJLP133 at a dosage of 1×1010 colony-forming units once a day for 12 weeks. We measured eosinophil counts in the peripheral blood, the proportion of CD4+CD25+Foxp3+ regulatory T (Treg) cells in CD4+ T cells, serum total immunoglobulin E (IgE) levels, and specific IgE against common allergens before the start of the treatment (T1) and at discontinuation (T2). Responders were defined as patients with at least a 30% reduction in the SCORing of AD (SCORAD) index after treatment. There were 36 responders and 40 non-responders after probiotic treatment. The median SCORAD was reduced from 29.5 (range 20.6-46.3) at T1 to 16.4 (range 6.3-30.8) at T2 in the responder group (P<0.001). In multivariable logistic regression analysis, a good clinical response was significantly associated with high total IgE levels (aOR 5.1, 95% CI 1.1-23.6), increased expression of transforming growth factor (TGF)-β (aOR 4.6, 95% CI 1.3-15.9), and a high proportion of Treg cells in CD4+ T cells (aOR 3.7, 95% CI 1.1-12.7) at T1. In the responder group, the proportion of Treg cells was significantly increased after 12 weeks of treatment (P=0.004), while TGF-β mRNA expression was decreased (P=0.017). Our results suggest that a subgroup of patients with a specific AD phenotype showing an immunologically active state (high total IgE, increased expression of TGF-β, high numbers of Treg cells) may benefit from probiotic treatment with L. plantarum CJLP133.
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Affiliation(s)
- J Kim
- 1 Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnamgu, Seoul 06351, Republic of Korea.,2 Environmental Health Center for Atopic Diseases, Samsung Medical Center, Seoul, Republic of Korea
| | - B S Lee
- 2 Environmental Health Center for Atopic Diseases, Samsung Medical Center, Seoul, Republic of Korea
| | - B Kim
- 3 Beneficial Microbes R&D Center, CJ CheilJedang Corporation, Suwon, Republic of Korea
| | - I Na
- 2 Environmental Health Center for Atopic Diseases, Samsung Medical Center, Seoul, Republic of Korea
| | - J Lee
- 2 Environmental Health Center for Atopic Diseases, Samsung Medical Center, Seoul, Republic of Korea
| | - J Y Lee
- 1 Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnamgu, Seoul 06351, Republic of Korea.,2 Environmental Health Center for Atopic Diseases, Samsung Medical Center, Seoul, Republic of Korea
| | - M R Park
- 4 Department of Pediatrics, Sung-Ae Hospital, Seoul, Republic of Korea
| | - H Kim
- 5 Biostatistics and Clinical Epidemiology Center, Samsung Medical Center, Seoul, Republic of Korea
| | - I Sohn
- 5 Biostatistics and Clinical Epidemiology Center, Samsung Medical Center, Seoul, Republic of Korea
| | - K Ahn
- 1 Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnamgu, Seoul 06351, Republic of Korea.,2 Environmental Health Center for Atopic Diseases, Samsung Medical Center, Seoul, Republic of Korea
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8
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Kim MK, Kim K, Min CK, Kwak JY, Bae SB, Yoon SS, Lee JJ, Kim KH, Nam SH, Mun YC, Kim HJ, Bae SH, Shin HJ, Lee JH, Park JS, Jeong SH, Lee MH, Kim YS, Lee HS, Park KW, Lee WS, Lee SM, Lee JO, Hyun MS, Jo DY, Lim SN, Lee JH, Cho DY, Do YR, Kim JA, Park SK, Kim JS, Kim SJ, Kim H, Yi HG, Moon JH, Choi CW, Kim SH, Joo YD, Kim HG, Kim BS, Park MR, Song MK, Kim SY. A prospective, open-label, multicenter, observational study to evaluate the efficacy and safety of bortezomib-melphalan-prednisone as initial treatment for autologous stem cell transplantation-ineligible patients with multiple myeloma. Oncotarget 2018; 8:37605-37618. [PMID: 28402945 PMCID: PMC5514934 DOI: 10.18632/oncotarget.16790] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 01/10/2017] [Indexed: 11/25/2022] Open
Abstract
Bortezomib-melphalan-prednisone (VMP) showed superior efficacy versus MP as first-line treatment for transplantation-ineligible multiple myeloma (MM). This study investigated the efficacy of VMP for Korean patients with MM. Overall, 177 MM patients received 9 cycles of VMP in this prospective, multicenter, observational study. The primary endpoint was 2-year progression-free survival (PFS). Thirty-nine (22%) patients were aged ≥ 75 years and 83 (47.4%) patients had International Staging System stage III. A median of 5 cycles were delivered. Overall response rate (ORR) was 72.9%, and complete response (CR) rate was 20.3%. With a median follow-up of 11.9 months, median PFS was 17 months. The 2-year PFS and overall survival (OS) rates were 29.2% and 80.0%, respectively. Median OS was not reached. PFS was significantly different depending on performance status (Eastern Cooperative Oncology Group < 2 vs. ≥ 2; p = 0.0002), β2-microglobulin level (< 5.5 vs. ≥ 5.5 mg/L; p = 0.0481), and cumulative dose of bortezomib (< 35.1 vs. ≥ 35.1 mg/m2; p < 0001). The common adverse events (AEs) were in line with the well-known toxicity profiles associated with VMP. In conclusion, VMP is a feasible and effective front-line treatment for transplant-ineligible older patients with MM in Korea. Continuing therapy with prompt adjustment of treatment according to AEs may be important to improve outcomes of elderly patients.
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Affiliation(s)
- Min Kyoung Kim
- Department of Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Kihyun Kim
- Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Chang-Ki Min
- Division of Hematology, Department of Internal Medicine, Seoul St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Jae-Yong Kwak
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Korea
| | - Sang-Byung Bae
- Department of Internal Medicine, Soonchunhyang University Hospital, Cheonan, Korea
| | - Sung-Soo Yoon
- Department of Internal Medicine, Seoul National University Hospital, Seoul, Korea
| | - Je-Jung Lee
- Department of Hematology/Oncology, Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Ki Hwan Kim
- Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Korea
| | - Seung-Hyun Nam
- Department of Internal Medicine, VHS Medical Center, Seoul, Korea
| | - Yeung-Chul Mun
- Department of Internal Medicine, Ewha Womans University School of Medicine, Seoul, Korea
| | - Hyo Jung Kim
- Department of Internal Medicine, Hallym University Sacred Heart Hospital, Hallym University College of Medicine, Anyang, Korea
| | - Sung Hwa Bae
- Department of Internal Medicine, Catholic University of Daegu School of Medicine, Daegu, Korea
| | - Ho-Jin Shin
- Department of Internal Medicine, Division of Hematology/Oncology, School of Medicine, Medical Research Institute, Pusan National University Hospital, Busan, Korea
| | - Jung-Hee Lee
- Department of Hematology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Joon Seong Park
- Department of Hematology/Oncology, Ajou University School of Medicine, Suwon, Korea
| | - Seong Hyun Jeong
- Department of Hematology/Oncology, Ajou University School of Medicine, Suwon, Korea
| | - Mark Hong Lee
- Department of Internal Medicine, Konkuk University Medical Center, Seoul, Korea
| | - Yang-Soo Kim
- Department of Hematology/Oncology, Kosin University College of Medicine, Busan, Korea
| | - Ho Sup Lee
- Department of Hematology/Oncology, Kosin University College of Medicine, Busan, Korea
| | - Keon Woo Park
- Department of Internal Medicine, Dankook University College of Medicine, Cheonan, Korea
| | - Won-Sik Lee
- Department of Internal Medicine, Inje University Busan Paik Hospital, Busan, Korea
| | - Sang Min Lee
- Department of Internal Medicine, Inje University Busan Paik Hospital, Busan, Korea
| | - Jeong-Ok Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Gyeonggi-do, Korea
| | - Myung Soo Hyun
- Department of Medicine, Yeungnam University College of Medicine, Daegu, Korea
| | - Deog Yeon Jo
- Department of Hematology/Oncology, Chungnam National University Hospital, Daejeon, Korea
| | - Sung-Nam Lim
- Department of Internal Medicine, Haeundae Paik Hospital, Inje University College of Medicine, Busan, Korea
| | - Jae Hoon Lee
- Department of Internal Medicine, Gachon University Gil Medical Center, Incheon, Korea
| | - Do-Yeun Cho
- Department of Internal Medicine, Konyang University Hospital, Daejeon, Korea
| | - Young Rok Do
- Department of Internal Medicine, Keimyung University School of Medicine, Daegu, Korea
| | - Jeong-A Kim
- Department of Hematology, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seong Kyu Park
- Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, Bucheon, Korea
| | - Jin Seok Kim
- Division of Hematology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Soo-Jeong Kim
- Division of Hematology, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - Hawk Kim
- Division of Hematology and Cellular Therapy, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea
| | - Hyeon Gyu Yi
- Department of Internal Medicine, Inha University Hospital, Inha University School of Medicine, Incheon, Korea
| | - Joon Ho Moon
- Department of Hematology/Oncology, Kyungpook National University Hospital, Daegu, Korea
| | - Chul Won Choi
- Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Korea
| | - Sung-Hyun Kim
- Department of Internal Medicine, Dong-A Medical Center, Dong-A University College of Medicine, Busan, Korea
| | - Young-Don Joo
- Department of Hemato-Oncology, Inje University Haeundae Paik Hospital, Busan, Korea
| | - Hoon-Gu Kim
- Department of Internal Medicine, Gyeongsang Institute of Health Sciences, Gyeongsang National University School of Medicine and Gyeongsang National University Changwon Hospital, Changwon, Korea
| | - Byung Soo Kim
- Department of Hematology, Korea University Medical Center, Korea University College of Medicine, Seoul, Korea
| | - Moo-Rim Park
- Department of Internal Medicine, School of Medicine, Wonkwang University, Iksan, Korea
| | - Moo-Kon Song
- Department of Hemato-Oncology, Hanyang University Hanmaeum Changwon Hospital, Changwon, Korea
| | - Su-Youn Kim
- Medical Affairs, Janssen Korea, Seoul, Korea
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9
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Jeon SY, Han HS, Bae WK, Park MR, Shim H, Lee SC, Go SI, Yun HJ, Im YJ, Song EK. A Randomized, Double-Blind, Placebo-Controlled Study of the Safety and Efficacy of Olanzapine for the Prevention of Chemotherapy-Induced Nausea and Vomiting in Patients Receiving Moderately Emetogenic Chemotherapy: Results of the Korean South West Oncology Group (KSWOG) Study. Cancer Res Treat 2018; 51:90-97. [PMID: 29510613 PMCID: PMC6333980 DOI: 10.4143/crt.2017.577] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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: 12/06/2017] [Accepted: 02/26/2018] [Indexed: 02/08/2023] Open
Abstract
PURPOSE Data on the efficacy of olanzapine in patients receiving moderately emetogenic chemotherapy (MEC) are limited. This study aimed to evaluate and compare the efficacy of olanzapine versus placebo in controlling nausea and vomiting in patients receiving MEC. Materials and Methods We conducted a randomized, double-blind, placebo-controlled study to determine whether olanzapine can reduce the frequency of chemotherapy-induced nausea and vomiting (CINV) and improve the quality of life (QOL) in patients receiving palonosetron and dexamethasone as prophylaxis for MEC-induced nausea and vomiting. The primary end point was complete response for the acute phase (0-24 hours after chemotherapy). The secondary end points were complete response for the delayed (24-120 hours) and overall phase (0-120 hours), proportion of significant nausea (visual analogue scale ≥ 25 mm), use ofrescue medications, and effect on QOL. RESULTS Fifty-six patients were randomized to the olanzapine (n=29) and placebo (n=27) groups. Complete response rates were not significantly different between the olanzapine and placebo groups in the acute (96.5% vs. 88.0%, p=0.326), delayed (69.0% vs. 48.0%, p=0.118), and overall phases (69.0% vs. 48.0%, p=0.118). However, the percentage of patients with significant nausea (17.2% vs. 44.0%, p=0.032) and the use of rescue medications (0.03±0.19 vs. 1.88±2.88, p=0.002) were lower in the olanzapine group than in the placebo. Furthermore, the olanzapine group demonstrated better QOL (p=0.015). CONCLUSION Olanzapine combined with palonosetron and dexamethasone significantly improved QOL and vomiting control among previously untreated patients receiving MEC, although the efficacy was limited to the reduction of the frequency of CINV.
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Affiliation(s)
- So-Yeon Jeon
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Korea.,Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
| | - Hye Sook Han
- Department of Internal Medicine, Chungbuk National University College of Medicine, Cheongju, Korea
| | - Woo Kyun Bae
- Department of Internal Medicine, Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Moo-Rim Park
- Department of Internal Medicine, Wonkwang University School of Medicine, Iksan, Korea
| | - Hyeok Shim
- Department of Internal Medicine, Wonkwang University School of Medicine, Iksan, Korea
| | - Sang-Cheol Lee
- Department of Internal Medicine, Soonchunhyang University Hospital, Cheonan, Korea
| | - Se-Il Go
- Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, Korea
| | - Hwan Jung Yun
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Korea
| | - Yong-Jin Im
- Center for Clinical Pharmacology and Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Korea
| | - Eun-Kee Song
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Korea.,Research Institute of Clinical Medicine of Chonbuk National University, Biomedical Research Institute of Chonbuk National University Hospital, Jeonju, Korea
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10
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Jeon SY, Han HS, Bae WK, Park MR, Lee SC, Go SI, Yun HJ, Ryu H, Im YJ, Song EK. A randomized, double-blind, placebo-controlled study of the safety and efficacy of olanzapine for the prevention of chemotherapy-induced nausea and vomiting in patients receiving moderately emetogenic chemotherapy. J Clin Oncol 2017. [DOI: 10.1200/jco.2017.35.15_suppl.e21699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e21699 Background: Olanzapine was found to be effective for preventing acute and delayed emesis in patients receiving highly emetogenic chemotherapy by randomized phase 3 study. However, there is limited data for the efficacy of olanzapine combined with palonosetron and dexamethasone in patients receiving moderately emetogenic chemotherapy (MEC). Methods: We conducted randomized, double-blind, placebo-controlled study to determine whether olanzapine could reduce the frequency of CINV and improve quality of life (QOL) in patients receiving palonosetron and dexamethasone for the prophylaxis of MEC induced nausea and vomiting. Two groups received either 10 mg of olanzapine orally or matching placebo daily on days 1 through 4. The primary end point was the complete response (no emesis and no use of rescue medication) for the acute phase (0-24 hours after chemotherapy). Secondary end points included the complete responses for the delayed (24-120 hours) and overall phase (0-120 hours), proportion of significant emesis (VAS ≥ 25 mm) for overall phase, use of rescue medications, and effect on QOL by Functional Living Index-Emesis (FLIE) questionnaire. Results: Fifty-six patients were randomized and fifty-four patients were evaluable (29 assigned to olanzapine, and 25 to placebo). The complete response rate was not significant between olanzapine and placebo group in the acute (96.5% vs. 88.0%, P = 0.326), delayed (69.0% vs. 48.0%, P = 0.118), and overall phase (69.0% vs. 48.0%, P = 0.118). However, the percentage of patients with significant emesis (17.2% vs. 44.0%, P = 0.032) and the use of rescue medications (0.03±0.19 vs. 1.88±2.88, P = 0.002) were significantly lower with olanzapine than with placebo in the overall phase. Furthermore, olanzapine group experienced a better QOL than the placebo group, as reported on the FLIE questionnaire (P = 0.015). Conclusions: Olanzapine in addition to palonosetron and dexamethasone significantly improved the management of emesis and QOL among previously untreated patients receiving MEC, although the efficacy was limited to reduce the frequency of CINV. Clinical trial information: NCT02400866.
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Affiliation(s)
- So Yeon Jeon
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - Hye Sook Han
- Chungbuk National University Hospital, Cheongju, South Korea
| | - Woo Kyun Bae
- Department of Medical Oncology, Chonnam National University Hwasun Hospital, Hwasun, Republic of Korea
| | - Moo-Rim Park
- Department of Internal Medicine, Wonkwang University Hospital, Iksan, South Korea
| | - Sang-Cheol Lee
- Soonchunhyang University Hospital Seoul, Seoul, South Korea
| | - Se-Il Go
- Division of Hematology/Oncology, Department of Internal Medicine, Gyeongsang National University Hospital, Gyeongsang National University School of Medicine, Jinju, South Korea
| | - Hwan Jung Yun
- Chungnam National University Hospital, Daejeon, South Korea
| | - Hyewon Ryu
- Chungnam National University Hospital, Deajeon, Republic of Korea
| | - Yong-Jin Im
- Center for Clinical Pharmacology and Biomedical Research Institute, Chonbuk National University Hospital, Jeonju, Republic of Korea
| | - Eun-Kee Song
- Chonbuk National University Medical School, Jeonbuk, Korea South
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11
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Son SJ, Park MR, Ryu SD, Maburutse BE, Oh NS, Park J, Oh S, Kim Y. Short communication: In vivo screening platform for bacteriocins using Caenorhabditis elegans to control mastitis-causing pathogens. J Dairy Sci 2016; 99:8614-8621. [PMID: 27638256 DOI: 10.3168/jds.2016-11330] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Accepted: 07/20/2016] [Indexed: 01/03/2023]
Abstract
This study aimed to develop an in vivo screening platform using Caenorhabditis elegans to identify a novel bacteriocin for controlling the mastitis-causing pathogen Staphylococcus aureus strain RF122 in dairy cows. Using Bacillus spp. isolated from traditional Korean foods, we developed a direct in vivo screening platform that uses 96-well plates and fluorescence image analysis. We identified a novel bacteriocin produced by Bacillus licheniformis strain 146 (lichenicin 146) with a high in vivo antimicrobial activity using our liquid C. elegans-Staph. aureus assay. We also determined the characteristics of lichenicin 146 using liquid chromatography-mass spectrometry and confirmed that it shared homologous sequences with bacteriocin family proteins. In addition, RNA-sequencing analysis revealed genes encoding cell surface or membrane proteins (SAB0993c, SAB0150, SAB0994c, and SAB2375c) that are involved in the bactericidal activity of lichenicin 146 against Staph. aureus strain RF122 infection as well as those encoding transcriptional regulators (SAB0844c and SAB0133). Thus, our direct in vivo screening platform facilitates simple, convenient, cost-effective, and reliable screening of potential antimicrobial compounds with applications in the dairy field.
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Affiliation(s)
- S J Son
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 561-756, Korea; Agency of National Food Cluster, Gwacheon, 427-806, Korea
| | - M R Park
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 561-756, Korea
| | - S D Ryu
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 561-756, Korea
| | - B E Maburutse
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 561-756, Korea
| | - N S Oh
- R&D Center, Seoul Dairy Cooperative, Ansan, Kyunggi 425-839, Korea
| | - J Park
- Department of Veterinary Internal Medicine, College of Veterinary Medicine, Chonbuk National University, Iksan 570-752, Korea
| | - S Oh
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 561-756, Korea.
| | - Y Kim
- Department of Animal Science and Institute of Milk Genomics, Chonbuk National University, Jeonju 561-756, Korea.
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12
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Choi YS, Park SG, Song EK, Cho SH, Park MR, Park KU, Lee KH, Song IC, Lee HJ, Jo DY, Kim S, Yun HJ. Comparison of the therapeutic effects of total laryngectomy and a larynx-preservation approach in patients with T4a laryngeal cancer and thyroid cartilage invasion: A multicenter retrospective review. Head Neck 2016; 38:1271-7. [PMID: 27043228 DOI: 10.1002/hed.24438] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 01/24/2016] [Accepted: 01/31/2016] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND In T4a laryngeal cancer with thyroid cartilage invasion, no optimal frontline treatment has yet been defined in controlled trials. METHODS We reviewed data from 89 patients with T4a laryngeal cancer featuring thyroid cartilage invasion who were treated initially with either total laryngectomy (n = 53) or a larynx-preservation strategy (n = 36). RESULTS The median progression-free survival (PFS) of the total laryngectomy group had not been attained at the time of analysis and was thus significantly longer than that of the larynx-preservation group (8.7 months). The median overall survival (OS) of patients who underwent total laryngectomy was 87.2 months, significantly longer than that of the larynx-preservation group (31.3 months). The survival benefit of primary surgery compared to a larynx-preservation strategy was more striking in patients of lower N classifications. CONCLUSION Total laryngectomy may be a better therapeutic option to treat T4a laryngeal cancer featuring thyroid cartilage invasion, especially in patients exhibiting limited nodal involvement (N0/N1). © 2016 Wiley Periodicals, Inc. Head Neck, 2016 © 2016 Wiley Periodicals, Inc. Head Neck 38:1271-1277, 2016.
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Affiliation(s)
- Yoon Seok Choi
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Sang Gon Park
- Department of Internal Medicine, Chosun University College of Medicine, Gwangju, Republic of Korea
| | - Eun-Kee Song
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Republic of Korea
| | - Sang-Hee Cho
- Department of Internal Medicine, Chonnam National University Medical School, Hwasoon, Republic of Korea
| | - Moo-Rim Park
- Department of Internal Medicine, Wonkwang University School of Medicine, Iksan, Republic of Korea
| | - Keon Uk Park
- Department of Internal Medicine, Keimyung University College of Medicine, Daegu, Republic of Korea
| | - Ki-Hyeong Lee
- Department of Internal Medicine, Chungbuk National University College of Medicine, Cheongju, Republic of Korea
| | - Ik-Chan Song
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Hyo Jin Lee
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Deog-Yeon Jo
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Samyong Kim
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
| | - Hwan-Jung Yun
- Department of Internal Medicine, Chungnam National University College of Medicine, Daejeon, Republic of Korea
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13
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Han HS, Park JC, Park SY, Lee KT, Bae SB, Kim HJ, Kim S, Yun HJ, Bae WK, Shim HJ, Hwang JE, Cho SH, Park MR, Shim H, Kwon J, Choi MK, Kim ST, Lee KH. A Prospective Multicenter Study Evaluating Secondary Adrenal Suppression After Antiemetic Dexamethasone Therapy in Cancer Patients Receiving Chemotherapy: A Korean South West Oncology Group Study. Oncologist 2015; 20:1432-9. [PMID: 26463869 DOI: 10.1634/theoncologist.2015-0211] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2015] [Accepted: 08/24/2015] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND In a previous pilot study, adrenal suppression was found to be common after antiemetic dexamethasone therapy in cancer patients. The objective of this large prospective multicenter study was to confirm the incidence and factors associated with secondary adrenal suppression related to antiemetic dexamethasone therapy in cancer patients receiving chemotherapy. METHODS Chemotherapy-naïve patients who were scheduled to receive at least three cycles of highly or moderately emetogenic chemotherapy with dexamethasone as an antiemetic were enrolled. Patients with a suppressed adrenal response before chemotherapy or those administered corticosteroids within 6 months of enrollment in the study were excluded. RESULTS Between October 2010 and August 2014, 481 patients receiving chemotherapy underwent the rapid adrenocorticotropic hormone (ACTH) stimulation test to assess eligibility; 350 of these patients were included in the final analysis. Fifty-six patients (16.0%) showed a suppressed adrenal response in the rapid ACTH stimulation test at 3 or 6 months after the start of the first chemotherapy. The incidence of adrenal suppression was affected by age, performance status, stage, and use of megestrol acetate in univariate analysis. Multivariate analysis revealed that secondary adrenal suppression associated with antiemetic dexamethasone therapy was significantly associated with megestrol acetate treatment (odds ratio: 3.06; 95% confidence interval: 1.60 to 5.86; p < .001). CONCLUSION This large prospective study indicates that approximately 15% of cancer patients receiving chemotherapy with a normal adrenal response show suppressed adrenal responses after antiemetic dexamethasone therapy. This result was particularly significant for patients cotreated with megestrol acetate.
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Affiliation(s)
- Hye Sook Han
- Department of Internal Medicine, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Ji Chan Park
- Department of Internal Medicine, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Republic of Korea
| | - Suk Young Park
- Department of Internal Medicine, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Republic of Korea
| | - Kyu Taek Lee
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
| | - Sang Byung Bae
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
| | - Han Jo Kim
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
| | - Samyoung Kim
- Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Hwan Jung Yun
- Department of Internal Medicine, College of Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Woo Kyun Bae
- Department of Internal Medicine, Chonnam National University Hwansun Hospital, Hwasun-Gun, Republic of Korea
| | - Hyun-Jeong Shim
- Department of Internal Medicine, Chonnam National University Hwansun Hospital, Hwasun-Gun, Republic of Korea
| | - Jun-Eul Hwang
- Department of Internal Medicine, Chonnam National University Hwansun Hospital, Hwasun-Gun, Republic of Korea
| | - Sang-Hee Cho
- Department of Internal Medicine, Chonnam National University Hwansun Hospital, Hwasun-Gun, Republic of Korea
| | - Moo-Rim Park
- Department of Internal Medicine, School of Medicine, Wonkwang University, Iksan, Republic of Korea
| | - Hyeok Shim
- Department of Internal Medicine, School of Medicine, Wonkwang University, Iksan, Republic of Korea
| | - Jihyun Kwon
- Department of Internal Medicine, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Moon Ki Choi
- Department of Internal Medicine, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Seung Taik Kim
- Department of Internal Medicine, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea
| | - Ki Hyeong Lee
- Department of Internal Medicine, College of Medicine, Chungbuk National University, Cheongju, Republic of Korea
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Lee BD, Park MR, Kwon KH. Bisphosphonate-related osteonecrosis of the jaw in a multiple myeloma patient: A case report with characteristic radiographic features. Imaging Sci Dent 2015; 45:199-203. [PMID: 26389064 PMCID: PMC4574059 DOI: 10.5624/isd.2015.45.3.199] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Revised: 05/11/2015] [Accepted: 05/24/2015] [Indexed: 11/18/2022] Open
Abstract
A 59-year-old male who had suffered from multiple myeloma for nine years and had been administered bisphosphonates for seven years visited a dental hospital for pain relief due to extensive caries in his left maxillary molars. The molars were extracted, leaving an exposed wound for three months. The radiograph showed sequestra formation and irregular bone destruction in the left maxilla. Sudden pain and gingival swelling in the right mandibular molar area occurred six months later. The interseptum of the right lower second molar was observed to be necrotic during surgery. These findings coincided with the features of bisphosphonate-related osteonecrosis of the jaw (BRONJ). In this case, the long intravenous administration of bisphosphonates and tooth extraction were likely the etiologic factors of BRONJ in a patient with multiple myeloma; moreover, the bilateral occurrence of BRONJ is a characteristic feature.
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Affiliation(s)
- Byung-Do Lee
- Department of Oral and Maxillofacial Radiology and Wonkwang Dental Research Institute, College of Dentistry, Wonkwang University, Iksan, Korea
| | - Moo-Rim Park
- Department of Internal Medicine, School of Medicine, Wonkwang University, Iksan, Korea
| | - Kyung-Hwan Kwon
- Department of Oral and Maxillofacial Surgery, College of Dentistry, Wonkwang University, Iksan, Korea
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15
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Han HS, Park JC, Park SY, Lee KT, Bae SB, Kim HJ, Kim S, Yun HJ, Bae WK, Shim HJ, Hwang JE, Cho SH, Park MR, Shim H, Lee KH. Prospective multicenter study evaluating adrenal suppression after dexamethasone therapy as an antiemetic in cancer patients: a KSWOG (Korean South West Oncology Group) study. J Clin Oncol 2015. [DOI: 10.1200/jco.2015.33.15_suppl.9605] [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: 11/20/2022] Open
Affiliation(s)
- Hye Sook Han
- Chungbuk National University Hospital, Cheongju, South Korea
| | - Ji Chan Park
- The Catholic University of Korea, Daejeon St. Mary's Hospital, Daejeon, South Korea
| | - Suk Young Park
- The Catholic University of Korea, Daejeon St. Mary's Hospital, Daejeon, South Korea
| | - Kyu Taek Lee
- Soonchunhyang University Cheonan Hospital, Cheonan, South Korea
| | - Sang Byung Bae
- Soonchunhyang University Cheonan Hospital, Cheonan, South Korea
| | - Han Jo Kim
- Soonchunhyang University Cheonan Hospital, Cheonan, South Korea
| | - Samyoung Kim
- Chungnam National University Hospital, Daejeon, South Korea
| | - Hwan Jung Yun
- Chungnam National University Hospital, Daejeon, South Korea
| | - Woo Kyun Bae
- Chonnam National University Hwansun Hospital, Hwasun-Gun, South Korea
| | - Hyun Jeong Shim
- Chonnam National University Hwansun Hospital, Hwasun-Gun, South Korea
| | - Jun Eul Hwang
- Chonnam National University Hwansun Hospital, Hwasun-Gun, South Korea
| | - Sang-Hee Cho
- Chonnam National University Hwansun Hospital, Hwasun-Gun, South Korea
| | - Moo-Rim Park
- Wonkwang University Hospital, Iksan, South Korea
| | - Hyeok Shim
- Wonkwang University Hospital, Iksan, South Korea
| | - Ki Hyeong Lee
- Chungbuk National University Hospital, Cheongju, South Korea
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Park MR, Yun HS, Son SJ, Oh S, Kim Y. Short communication: Development of a direct in vivo screening model to identify potential probiotic bacteria using Caenorhabditis elegans. J Dairy Sci 2014; 97:6828-34. [PMID: 25200770 DOI: 10.3168/jds.2014-8561] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 07/26/2014] [Indexed: 11/19/2022]
Abstract
Caenorhabditis elegans is an accepted model host to study host-bacteria interactions in the gut, in addition to being a simple model with which to study conserved aspects of biological signaling pathways in intestinal environments, because these nematode worms have similar intestinal cells to those of humans. Here, we used C. elegans to develop a new in vivo screening system for potential probiotic lactic acid bacteria (LAB). Initially, critical colonization ability of LAB strains isolated from Korean infant feces was screened in the worm intestinal tract over a period of 5 d. Furthermore, we investigated host health-promoting activities, including longevity-extending effects and immune-enhancing activities against foodborne pathogen infection. We identified 4 LAB strains that were highly persistent in the nematode gut and that significantly prolonged the longevity of C. elegans and improved the survival of C. elegans in response to infection by Staphylococcus aureus. The 4 LAB strains we identified showed resistance to acid and bile conditions, assimilated cholesterol, and were able to attach to a mucus layer. The 4 LAB isolates were identified as Lactobacillus plantarum using 16S rRNA sequencing analysis. Taken together, we developed a direct in vivo screening system using C. elegans to study host health-promoting LAB. Our system is simple, rapid, cost-effective, and reliable, and we anticipate that this system will result in the discovery of many more potential probiotic bacteria for dairy foods.
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Affiliation(s)
- M R Park
- BK21 Plus Graduate Program, Department of Animal Science and Institute Agricultural Science & Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - H S Yun
- BK21 Plus Graduate Program, Department of Animal Science and Institute Agricultural Science & Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - S J Son
- BK21 Plus Graduate Program, Department of Animal Science and Institute Agricultural Science & Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - S Oh
- BK21 Plus Graduate Program, Department of Animal Science and Institute Agricultural Science & Technology, Chonbuk National University, Jeonju, 561-756, Korea
| | - Y Kim
- BK21 Plus Graduate Program, Department of Animal Science and Institute Agricultural Science & Technology, Chonbuk National University, Jeonju, 561-756, Korea.
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Park MR, Nam YH, Lee SK, Kim KH, Roh MS, Lee HW, Jeong IH, Um SJ, Son CH. Uncertain areas in the diagnosis of allergic bronchopulmonary aspergillosis in patients with asthma. Allergol Immunopathol (Madr) 2014; 42:433-8. [PMID: 23827645 DOI: 10.1016/j.aller.2013.04.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Revised: 04/12/2013] [Accepted: 04/23/2013] [Indexed: 11/19/2022]
Abstract
BACKGROUND AND OBJECTIVE The prevalence of allergic bronchopulmonary aspergillosis (ABPA) in patients with bronchial asthma remains unknown. We evaluated the roles of various laboratory tests in the diagnosis of ABPA, including, skin prick test (SPT) for Aspergillus fumigatus (Af), and serum Af specific IgE and IgG antibody measurement. METHODS A total of 50 asthma patients with more than 1000cell/μL of peripheral blood eosinophils were prospectively collected between January 2007 and September 2011. Evaluations using SPT for Af, serum total IgE and specific IgE antibody to Af by CAP system, IgG antibody to Af by enzyme immunoassay (EIA) or CAP system were performed according to the essential minimal criteria for the diagnosis of ABPA - asthma, immediate cutaneous reactivity to Af, elevated total IgE, and raised Af specific IgE and IgG. RESULTS Among 50 patients, three patients (6.0%) were diagnosed as ABPA, of whom each confirmed five items of the essential minimal diagnostic criteria for the diagnosis of ABPA. Six patients (12.0%) showed negative responses to Af in SPT, but positive responses in specific IgE by CAP system. Eight patients (16.0%) showed negative responses to IgG to Af by CAP system, but positive responses by enzyme immunoassay (EIA). CONCLUSIONS SPT and serum IgE to Af measurement by CAP system should be performed simultaneously. It is reasonable to set up cut-off values in Af specific IgE/IgG by CAP system for the differentiation of ABPA from Af sensitised asthma patients.
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Affiliation(s)
- M R Park
- Department of Internal Medicine, College of Medicine, Dong-A University, Busan, South Korea
| | - Y H Nam
- Department of Internal Medicine, College of Medicine, Dong-A University, Busan, South Korea
| | - S K Lee
- Department of Internal Medicine, College of Medicine, Dong-A University, Busan, South Korea.
| | - K H Kim
- Laboratory Medicine, College of Medicine, Dong-A University, Busan, South Korea
| | - M S Roh
- Anatomic Pathology, College of Medicine, Dong-A University, Busan, South Korea
| | - H W Lee
- Department of Internal Medicine, College of Medicine, Dong-A University, Busan, South Korea
| | - I H Jeong
- Department of Internal Medicine, College of Medicine, Dong-A University, Busan, South Korea
| | - S J Um
- Department of Internal Medicine, College of Medicine, Dong-A University, Busan, South Korea
| | - C H Son
- Department of Internal Medicine, College of Medicine, Dong-A University, Busan, South Korea
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Choi DB, Park MR, Kim HR, Jun CD, Kim HJ, Shim H, Kim YD, Choi C, Choi KH, Yun KJ, Chae SC, Park R, Choe SK, Lee YJ, Park DS. Aberrant proteomic expression of NSRP70 and its clinical implications and connection to the transcriptional level in adult acute leukemia. Leuk Res 2014; 38:1252-9. [PMID: 25176346 DOI: 10.1016/j.leukres.2014.08.001] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 08/02/2014] [Accepted: 08/03/2014] [Indexed: 11/30/2022]
Abstract
We investigated three splicing factor proteins (SFPs; NSRP70, SRSF1, and HNRNPA1) in 187 adults with and without acute leukemia (AL). We showed that NSRP70 is a novel lymphoblastic AL (ALL) surrogate marker, which presented excellent diagnostic accuracy (92%) and disappeared during remission. Its highest molecular weight form, but not total amount, was associated with adverse genetic abnormalities in myeloid AL (AML). Furthermore, we identified that these SFPs were more prevalent in ALL than in AML; were not correlated with their mRNA levels; and their formations in AL may occur without coding mutations and relate to post-translational modifications.
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Affiliation(s)
- Dan-Bee Choi
- Department of Laboratory Medicine, School of Medicine, Wonkwang University, Iksan, Republic of Korea; Center for Metabolic Function Regulation, Institute of Wonkwang Medical Science and Institute of Wonkwang Clinical Medicine, Wonkwang University, Iksan, Republic of Korea
| | - Moo-Rim Park
- Department of Internal Medicine, School of Medicine, Wonkwang University, Iksan, Republic of Korea
| | - Hak-Ryul Kim
- Department of Internal Medicine, School of Medicine, Wonkwang University, Iksan, Republic of Korea
| | - Chang-Duk Jun
- School of Life Sciences, Immune Synapse Research Center and Cell Dynamics Research Center, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea
| | - Hyeoung-Joon Kim
- Department of Internal Medicine and Genome Research Center for Hematopoietic Diseases, Chonnam National University Hwasun Hospital, Hwasun-gun, Republic of Korea
| | - Hyeok Shim
- Department of Internal Medicine, School of Medicine, Wonkwang University, Iksan, Republic of Korea
| | - Young-Dae Kim
- School of Life Sciences, Immune Synapse Research Center and Cell Dynamics Research Center, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea
| | - Chan Choi
- Department of Pathology and Genome Research Center for Hematopoietic Diseases, Chonnam National University Hwasun Hospital, Hwasun-gun, Republic of Korea
| | - Keum-Ha Choi
- Department of Pathology, School of Medicine, Wonkwang University, Iksan, Republic of Korea
| | - Ki Jung Yun
- Department of Pathology, School of Medicine, Wonkwang University, Iksan, Republic of Korea
| | - Soo-Cheon Chae
- Department of Pathology, School of Medicine, Wonkwang University, Iksan, Republic of Korea
| | - Raekil Park
- Center for Metabolic Function Regulation, Institute of Wonkwang Medical Science and Institute of Wonkwang Clinical Medicine, Wonkwang University, Iksan, Republic of Korea; Department of Microbiology, School of Medicine, Wonkwang University, Iksan, Republic of Korea
| | - Seong-Kyu Choe
- Center for Metabolic Function Regulation, Institute of Wonkwang Medical Science and Institute of Wonkwang Clinical Medicine, Wonkwang University, Iksan, Republic of Korea; Department of Microbiology, School of Medicine, Wonkwang University, Iksan, Republic of Korea
| | - Young-Jin Lee
- Department of Laboratory Medicine, School of Medicine, Wonkwang University, Iksan, Republic of Korea
| | - Do-Sim Park
- Department of Laboratory Medicine, School of Medicine, Wonkwang University, Iksan, Republic of Korea; Center for Metabolic Function Regulation, Institute of Wonkwang Medical Science and Institute of Wonkwang Clinical Medicine, Wonkwang University, Iksan, Republic of Korea.
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Lee KT, Lee YM, Alam M, Choi BH, Park MR, Kim KS, Kim TH, Kim JJ. A Whole Genome Association Study on Meat Quality Traits Using High Density SNP Chips in a Cross between Korean Native Pig and Landrace. Asian-Australas J Anim Sci 2014; 25:1529-39. [PMID: 25049513 PMCID: PMC4093033 DOI: 10.5713/ajas.2012.12474] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2012] [Revised: 09/28/2012] [Accepted: 09/27/2012] [Indexed: 11/27/2022]
Abstract
A whole genome association (WGA) study was performed to detect significant polymorphisms for meat quality traits in an F2 cross population (N = 478) that were generated with Korean native pig sires and Landrace dams in National Livestock Research Institute, Songwhan, Korea. The animals were genotyped using Illumina porcine 60k SNP beadchips, in which a set of 46,865 SNPs were available for the WGA analyses on ten carcass quality traits; live weight, crude protein, crude lipids, crude ash, water holding capacity, drip loss, shear force, CIE L, CIE a and CIE b. Phenotypes were regressed on additive and dominance effects for each SNP using a simple linear regression model, after adjusting for sex, sire and slaughter stage as fixed effects. With the significant SNPs for each trait (p<0.001), a stepwise regression procedure was applied to determine the best set of SNPs with the additive and/or dominance effects. A total of 106 SNPs, or quantitative trait loci (QTL) were detected, and about 32 to 66% of the total phenotypic variation was explained by the significant SNPs for each trait. The QTL were identified in most porcine chromosomes (SSCs), in which majority of the QTL were detected in SSCs 1, 2, 12, 13, 14 and 16. Several QTL clusters were identified on SSCs 12, 16 and 17, and a cluster of QTL influencing crude protein, crude lipid, drip loss, shear force, CIE a and CIE b were located between 20 and 29 Mb of SSC12. A pleiotropic QTL for drip loss, CIE L and CIE b was also detected on SSC16. These QTL need to be validated in commercial pig populations for genetic improvement in meat quality via marker-assisted selection.
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Affiliation(s)
- K-T Lee
- Animal Genomics and Bioinformatics Division, National Institute of Animal Science, Suwon, Korea
| | - Y-M Lee
- Animal Genomics and Bioinformatics Division, National Institute of Animal Science, Suwon, Korea
| | - M Alam
- Animal Genomics and Bioinformatics Division, National Institute of Animal Science, Suwon, Korea
| | - B H Choi
- Animal Genomics and Bioinformatics Division, National Institute of Animal Science, Suwon, Korea
| | - M R Park
- Animal Genomics and Bioinformatics Division, National Institute of Animal Science, Suwon, Korea
| | - K-S Kim
- Department of Animal Science, Chungbuk National University, Cheongju, Korea
| | - T-H Kim
- Animal Genomics and Bioinformatics Division, National Institute of Animal Science, Suwon, Korea
| | - J-J Kim
- Animal Genomics and Bioinformatics Division, National Institute of Animal Science, Suwon, Korea
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Oh NS, Kwon HS, Lee HA, Joung JY, Lee JY, Lee KB, Shin YK, Baick SC, Park MR, Kim Y, Lee KW, Kim SH. Preventive effect of fermented Maillard reaction products from milk proteins in cardiovascular health. J Dairy Sci 2014; 97:3300-13. [PMID: 24731635 DOI: 10.3168/jds.2013-7728] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Accepted: 02/18/2014] [Indexed: 12/17/2022]
Abstract
The aim of this study was to determine the dual effect of Maillard reaction and fermentation on the preventive cardiovascular effects of milk proteins. Maillard reaction products (MRP) were prepared from the reaction between milk proteins, such as whey protein concentrates (WPC) and sodium caseinate (SC), and lactose. The hydrolysates of MRP were obtained from fermentation by lactic acid bacteria (LAB; i.e., Lactobacillus gasseri H10, L. gasseri H11, Lactobacillus fermentum H4, and L. fermentum H9, where human-isolated strains were designated H1 to H15), which had excellent proteolytic and 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activities (>20%). The antioxidant activity of MRP was greater than that of intact proteins in assays of the reaction with 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt and trivalent ferric ions; moreover, the effect of MRP was synergistically improved by fermentation. The Maillard reaction dramatically increased the level of antithrombotic activity and 3-hydroxy-3-methylglutaryl-CoA reductase (HMGR) inhibitory effect of milk proteins, but did not change the level of activity for micellar cholesterol solubility. Furthermore, specific biological properties were enhanced by fermentation. Lactobacillus gasseri H11 demonstrated the greatest activity for thrombin and HMGR inhibition in Maillard-reacted WPC, by 42 and 33%, respectively, whereas hydrolysates of Maillard-reacted SC fermented by L. fermentum H9 demonstrated the highest reduction rate for micellar cholesterol solubility, at 52%. In addition, the small compounds that were likely released by fermentation of MRP were identified by size-exclusion chromatography. Therefore, MRP and hydrolysates of fermented MRP could be used to reduce cardiovascular risks.
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Affiliation(s)
- N S Oh
- R&D Center, Seoul Dairy Cooperative, Ansan, Kyunggi 425-839, South Korea; Division of Food Bioscience and Technology, College of Life Science and Biotechnology, Korea University, Seoul 136-701, South Korea
| | - H S Kwon
- Division of Food Bioscience and Technology, College of Life Science and Biotechnology, Korea University, Seoul 136-701, South Korea
| | - H A Lee
- R&D Center, Seoul Dairy Cooperative, Ansan, Kyunggi 425-839, South Korea
| | - J Y Joung
- R&D Center, Seoul Dairy Cooperative, Ansan, Kyunggi 425-839, South Korea
| | - J Y Lee
- R&D Center, Seoul Dairy Cooperative, Ansan, Kyunggi 425-839, South Korea
| | - K B Lee
- R&D Center, Seoul Dairy Cooperative, Ansan, Kyunggi 425-839, South Korea
| | - Y K Shin
- R&D Center, Seoul Dairy Cooperative, Ansan, Kyunggi 425-839, South Korea
| | - S C Baick
- R&D Center, Seoul Dairy Cooperative, Ansan, Kyunggi 425-839, South Korea
| | - M R Park
- BK21 Plus Graduate Program, Department of Animal Science and Institute of Rare Earth for Biological Application, Chonbuk National University, Jeonju, 561-756, South Korea
| | - Y Kim
- BK21 Plus Graduate Program, Department of Animal Science and Institute of Rare Earth for Biological Application, Chonbuk National University, Jeonju, 561-756, South Korea
| | - K W Lee
- Division of Food Bioscience and Technology, College of Life Science and Biotechnology, Korea University, Seoul 136-701, South Korea
| | - S H Kim
- Division of Food Bioscience and Technology, College of Life Science and Biotechnology, Korea University, Seoul 136-701, South Korea.
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Kang BW, Sohn SK, Moon JH, Chae YS, Kim JG, Lee SJ, Kim WS, Lee JJ, Lee SR, Park KU, Lee HS, Lee WS, Won JH, Park MR, Kwak JY, Kim MK, Kim HJ, Oh SY, Kang HJ, Suh C. Clinical features and treatment outcomes in patients with mantle cell lymphoma in Korea: Study by the Consortium for Improving Survival of Lymphoma. Blood Res 2014; 49:15-21. [PMID: 24724062 PMCID: PMC3974951 DOI: 10.5045/br.2014.49.1.15] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [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: 10/29/2013] [Revised: 12/05/2013] [Accepted: 02/19/2014] [Indexed: 12/11/2022] Open
Abstract
Background We investigated the clinical features and treatment outcomes of patients with mantle cell lymphoma (MCL) in Korea. Methods We retrospectively analyzed the clinical characteristics and prognosis of 131 patients diagnosed with MCL between January 2004 and December 2009 at 15 medical centers in Korea; all patients received at least 1 chemotherapeutic regimen for MCL. Results The median age for the patients was 63 years (range, 26-78 years), and 77.9% were men. A total of 105 patients (80.1%) had stage III or IV MCL at diagnosis. Fifty-two patients (39.7%) were categorized with high- or high-intermediate risk MCL according to the International Prognostic Index (IPI). Eighteen patients (13.7%) were in the high-risk group according to the simplified MCL-IPI (MIPI). The overall incidence of extranodal involvement was 69.5%. The overall incidence of bone marrow and gastrointestinal involvements at diagnosis was 41.2% and 35.1%, respectively. Cyclophosphamide, doxorubicin, vincristine, prednisolone, and rituximab were used frequently as the first-line treatment (41.2%). With a median follow-up duration of 20.0 months (range, 0.2-77.0 months), the overall survival (OS) at 2 years was 64.7%, while the event-free survival (EFS) was 39.7%. Multivariate analysis showed that the simplified MIPI was significantly associated with OS. However, the use of a rituximab-containing regimen was not associated with OS and EFS. Conclusion Similar to results from Western countries, the current study found that simplified MIPI was an important prognostic factor in Korean patients with MCL.
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Affiliation(s)
- Byung Woog Kang
- Department of Hematology/Oncology, Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Sang Kyun Sohn
- Department of Hematology/Oncology, Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Joon Ho Moon
- Department of Hematology/Oncology, Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Yee Soo Chae
- Department of Hematology/Oncology, Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Jong Gwang Kim
- Department of Hematology/Oncology, Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Soo Jung Lee
- Department of Hematology/Oncology, Internal Medicine, Kyungpook National University Hospital, Daegu, Korea
| | - Won Seog Kim
- Department of Hematology/Oncology, Internal Medicine, Samsung Medical Center, Seoul, Korea
| | - Je-Jung Lee
- Department of Hematology/Oncology, Internal Medicine, Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Se Ryeon Lee
- Department of Hematology/Oncology, Internal Medicine, Korea University Ansan Hospital, Ansan, Korea
| | - Keon Uk Park
- Department of Hematology/Oncology, Internal Medicine, Keimyung University Dongsan Medical Center, Daegu, Korea
| | - Ho Sup Lee
- Department of Hematology/Oncology, Internal Medicine, Kosin University Gospel Hospital, Busan, Korea
| | - Won Sik Lee
- Department of Hematology/Oncology, Internal Medicine, Inje University Busan Paik Hospital, Busan, Korea
| | - Jong-Ho Won
- Department of Hematology/Oncology, Internal Medicine, Soonchunhyang University Hospital, Seoul, Korea
| | - Moo-Rim Park
- Department of Hematology/Oncology, Internal Medicine, Wonkwang University Hospital, Iksan, Korea
| | - Jae-Yong Kwak
- Department of Hematology/Oncology, Internal Medicine, Chonbuk National University Hospital, Jeonju, Korea
| | - Min Kyoung Kim
- Department of Hematology/Oncology, Internal Medicine, Yeungnam University Medical Center, Daegu, Korea
| | - Hyo Jung Kim
- Department of Hematology/Oncology, Internal Medicine, Hallym University Scared Heart Hospital, Anyang, Korea
| | - Sung Yong Oh
- Department of Hematology/Oncology, Internal Medicine, Dong-A University Hospital, Busan, Korea
| | - Hye Jin Kang
- Department of Hematology/Oncology, Internal Medicine, Korea Cancer Center Hospital, Seoul, Korea
| | - Cheolwon Suh
- Department of Hematology/Oncology, Internal Medicine, Asan Medical Center, Seoul, Korea
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Yhim HY, Lee NR, Song EK, Kwak JY, Lee ST, Kim JH, Kim JS, Park HS, Chung IJ, Shim HJ, Hwang JE, Kim HR, Nam TK, Park MR, Shim H, Park HS, Kim HS, Yim CY. The prognostic significance of tumor human papillomavirus status for patients with anal squamous cell carcinoma treated with combined chemoradiotherapy. Int J Cancer 2011; 129:1752-60. [DOI: 10.1002/ijc.25825] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2010] [Accepted: 11/19/2010] [Indexed: 11/09/2022]
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Seo DC, Lee HJ, Hwang HN, Park MR, Kwak NW, Cho IJ, Cho JS, Seo JY, Joo WH, Park KH, Heo JS. Treatment of non-biodegradable cutting oil wastewater by ultrasonication-Fenton oxidation process. Water Sci Technol 2007; 55:251-9. [PMID: 17305147 DOI: 10.2166/wst.2007.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
To treat cutting oil wastewater produced in metal surface treatment industry, Ultrasonication (US)-Fenton process, which is one of the advanced oxidation processes, was used. The optimum conditions to treat non-biodegradable pollutants using the US-Fenton process were that the application rates of H2O2 and FeSO4 were 10% and 3 g/L, respectively, the value of pH was 3, and the ultrasonication time was 30 min. It identified non-degradable pollutants such as ethylene diamine tetraacetic acid (EDTA) and Triethanolamine (TEA) in the cutting oil wastewater. TLC analysis of two compounds of treated water by the coagulation process was similar to that of raw water. However, TLC analysis of two compounds of US-Fenton process was different from that of raw water, meaning that US-Fenton process decomposed the EDTA and TEA. To study the possibility of application with the US-Fenton process to pilot plant, the pollutants treatment efficiency of three different methods, such as US-Fenton process, activated sludge process and coagulation process, in continuous experiments were compared. The removal rate of pollutants by the US-Fenton process according to the effluent time was higher than any other processes. The removal rates of COD, SS, T-N and T-P by US-Fenton process were 98, 93, 75 and 95%, respectively.
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Affiliation(s)
- D C Seo
- Division of Applied Life Science, Gyeongsang National University, Jinju, 660-701, Korea
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Kim SH, Kim YK, Lee IK, Jo DY, Won JH, Kwak JY, Yim CY, Park MR, Yang DH, Cho SH, Lee JJ, Chung IJ, Kim HJ. FLT3 Internal Tandem Duplication in Acute Myeloid Leukemia with Normal Karyotype. Korean J Hematol 2007. [DOI: 10.5045/kjh.2007.42.3.250] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Affiliation(s)
- Sang-Ho Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Yeo-Kyeoung Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Il-Kwon Lee
- Genome Research Center for Hematopoietic Diseases, Chonnam National University Hwasun Hospital, Hwasun, Korea
| | - Deog-Yeon Jo
- Department of Internal Medicine, Chungnam National University College of Medicine, Cheongju, Korea
| | - Jong-Ho Won
- Department of Internal Medicine, Soonchunhyang University College of Medicine, Seoul, Korea
| | - Jae-Yong Kwak
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Korea
| | - Chang-Yeol Yim
- Department of Internal Medicine, Chonbuk National University Medical School, Jeonju, Korea
| | - Moo-Rim Park
- Department of Hematology/Oncology, Wonkwang University School of Medicin, Iksan, Korea
| | - Deok-Hwan Yang
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Sang-Hee Cho
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Je-Jung Lee
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Ik-Joo Chung
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
| | - Hyeoung-Joon Kim
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
- Genome Research Center for Hematopoietic Diseases, Chonnam National University Hwasun Hospital, Hwasun, Korea
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25
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Lee JJ, Cho D, Chung IJ, Cho SH, Park KS, Park MR, Ryang DW, Kim HJ. CD34 expression is associated with poor clinical outcome in patients with acute promyelocytic leukemia. Am J Hematol 2003; 73:149-53. [PMID: 12827650 DOI: 10.1002/ajh.10337] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This study investigated the clinical characteristics and prognostic relevance of CD34 expression in 47 patients with acute promyelocytic leukemia (APL), showing t(15;17) or PML/RARalpha. Ten (21.3%) of the APL patients were CD34(+). CD34 expression was associated with hypogranular morphology (P = 0.002) and hyperleukocytosis (P = 0.015). However, there were no statistically significant differences in age, sex, hemoglobin level, platelet count, or percentage of blasts between the CD34(+) and CD34(-) APL groups. Multiplex RT-PCR analysis showed that the L-form (BCR1) and S-form (BCR3) were correlated with CD34(-) APL and CD34(+) APL, respectively. Despite the lack of a difference in the complete remission rate, overall survival (OS) and disease-free survival (DFS) were significantly lower in the CD34(+) group than in the CD34(-) group (P = 0.012 and P = 0.0051, respectively). By multivariate analysis, the CD34(+) group showed a significant independent variable in DFS compared with the CD34(-) group, but this was not demonstrated for OS. In conclusion, CD34 expression in APL is a unique clinical feature associated with leukocytosis and atypical morphology with hypogranular pattern and is associated with a poor clinical outcome.
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MESH Headings
- Adolescent
- Adult
- Antigens, CD/blood
- Antigens, CD34/blood
- Biomarkers/blood
- Blood Cell Count
- Chromosomes, Human, Pair 15
- Chromosomes, Human, Pair 17
- Disease-Free Survival
- Female
- Follow-Up Studies
- Humans
- Leukemia, Promyelocytic, Acute/blood
- Leukemia, Promyelocytic, Acute/genetics
- Leukemia, Promyelocytic, Acute/immunology
- Leukemia, Promyelocytic, Acute/mortality
- Male
- Middle Aged
- Prognosis
- Reverse Transcriptase Polymerase Chain Reaction
- Survival Rate
- Time Factors
- Translocation, Genetic
- Treatment Outcome
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Affiliation(s)
- Je-Jung Lee
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
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26
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Abstract
Malignant lymphoma can involve the cardiac cavity or myocardium as a mass. Clinical symptoms of its cardiac involvement are usually absent or nonspecific, making the diagnosis of the cardiac involvement very difficult before death. We experienced a patient with secondary myocardial non-Hodgkin's lymphoma presenting with sustained ventricular tachycardia (VT) as a primary clinical problem. A 39-yr-old woman visited our hospital because of dyspnea and palpitation for 7 days. Physical examination revealed rapid heart beat with variable intensity of the first heart sound and soft mass in the lower abdomen. VT with a cycle length of 480 msec was recorded in resting 12-lead electrocardiogram. Two well-circumscribed hypo-echogenic round masses were demonstrated in the interventricular septum and left ventricular posterior wall. Cytological examination of aspirated pericardial fluid and percutaneous needle biopsy of the abdominal mass revealed a diffuse large cell type non-Hodgkin's lymphoma. Myocardial masses and ventricular tachycardia resolved with chemotherapy using cyclophosphamide, adriamycin, vincristine and prednisone regimen. To our best knowledge, the same case as ours has not been reported previously.
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Affiliation(s)
- Jeong-Gwan Cho
- Division of Cardiology, Department of Internal Medicine, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Korea.
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27
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Chung IJ, Lee JJ, Park MR, Kook H, Cho SH, Hwang TJ, Kim HJ. Allogeneic peripheral blood stem cell rescue of late graft failure after bone marrow transplantation in patients with aplastic anemia. J Korean Med Sci 2002; 17:468-74. [PMID: 12172040 PMCID: PMC3054912 DOI: 10.3346/jkms.2002.17.4.468] [Citation(s) in RCA: 6] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We investigated the effect and outcome of allogeneic peripheral blood stem cell (PBSC) rescue for aplastic anemia (AA) patients with graft failure after allogeneic bone marrow transplantation (BMT). Seven (28%) of 25 AA patients who received BMT from HLA-identical sibling donors developed late graft failure at a median of 7 months (range, 2.0-9.3 months) after transplantation. The patients with graft failure were treated with PBSC collected from the original donor after mobilization with granulocyte-colony stimulating factor (G-CSF). The median boost dose of peripheral blood mononuclear cells was 3.1 x 10(8)/kg (range, 1.4-11.9 x 10(8)/kg). Median times to reach an absolute neutrophil count greater than 0.5 x 10(9)/L and a platelet count greater than 50 x 10(9)/L were 7 days (range, 4-14 days) and 9 days (range, 3-41 days), respectively. There was sustained graft function in 6 of 7 patients, with a median follow-up duration of 3.3 yr (range, 1.0-6.2 yr). Grade-I acute graft-versus-host disease (GVHD) occurred in 2 patients, while extensive chronic GVHD developed in 3 patients. This report shows that G-CSF-mobilized allogeneic PBSC rescue is very effective in achieving complete and sustained engraftment in patients with AA after graft failure. However, more efficacious measures to prevent extensive chronic GVHD remain to be developed.
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Affiliation(s)
- Ik-Joo Chung
- Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea
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28
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Chung IM, Park MR, Rehman S, Yun SJ. Tissue specific and inducible expression of resveratrol synthase gene in peanut plants. Mol Cells 2001; 12:353-9. [PMID: 11804335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
The expression of resveratrol synthase (RS) genes is induced by biotic and abiotic factors in peanut cell cultures. However, little is known about the regulation of the RS gene expression in peanut plants. The expression of RS genes was investigated in peanut plants with a peanut RS clone, pPRS3C, which encodes two polypeptides that show about a 96% amino acid sequence identity to peanut RS2 and RS3, respectively. A low level of RS mRNA was detected in the roots of peanut plants grown aseptically in vitro. In mature peanut plants that were grown in the field, however, RS mRNAs were present at relatively high levels in both the roots and pods, but at below the detection limit in leaves. RS mRNAs were abundant in young pods and decreased dramatically in mature pods. The RS mRNA expression was induced by yeast extract and UV in leaves and roots, and also by wounding in leaves. Stress hormones, such as ethylene, jasmonic acid, and salicylic acid, induced RS mRNA accumulation in leaves. These results indicate that the RS gene expression is induced by biotic and abiotic stresses through the stress hormones in peanut plants. The induction of the RS gene expression by biotic and abiotic stresses could provide peanut plants with protection from microbial infections through resveratrol synthesis. The RS gene expression in developing pods has significant implications in terms of the role of resveratrol as a phytochemical for human health.
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Affiliation(s)
- I M Chung
- College of Agriculture and Life Sciences, Konkuk University, Seoul, Korea
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Abstract
We evaluated the clinical significance of tumor angiogenesis and Fas-ligand (FasL) expression using parameters including the microvessel count (MVC), vascular endothelial growth factor (VEGF) level, and FasL expression in patients with acute myeloid leukemia (AML). Paraffin-embedded bone marrow (BM) sections from 43 AML patients at diagnosis, 20 patients after subsequent induction therapy, and 18 controls with non-invasive lymphoma were stained immunohistochemically for von Willebrand factor (vWF) and FasL. VEGF in BM mononuclear cells from 32 AML patients at diagnosis and 10 controls, including bone marrow transplantation donors, was assayed by an ELISA method. We found that the mean MVC, VEGF level, and FasL expression in AML patients at diagnosis were significantly higher than those of controls, with a significant correlation between the MVC and VEGF levels (r=0.43). However, there were no correlations between FasL expression and MVC or VEGF level. The mean MVC and FasL expression after induction therapy were lower than those evaluated at diagnosis, but were higher than those of controls. There was a correlation between the MVC and percentage of BM blasts (r=0.479), but no correlation between the MVC, VEGF level, or FasL expression and other hematologic or clinical variables. Our findings provide evidence of increased angiogenesis and tumor immune escape in AML, and both angiogenesis and tumor immune escape are independent processes in AML.
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Affiliation(s)
- J J Lee
- Department of Internal Medicine, Chonnam National University Medical School, 8 Hak-dong, Dong-ku, Kwangju 501-757, South Korea
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Abstract
A 56-year-old woman was treated with combination chemotherapy and radiation therapy for peripheral T-cell lymphoma. Following complete remission for a period of 6 months, she returned again with marked leukocytosis. Leukemic cells were characterized by scanty cytoplasm with fine azurophilic granules, and were highly positive for myeloperoxidase and sudan black-B. Immunophenotypic analysis revealed that blast cells were positive for myeloid antigens (CD13, CD33), and natural killer (NK) cell antigen (CD56), but negative for T-cell antigens (CD2, CD5, CD7), B-cell antigens (CD19, CD20), CD34, and HLA-DR. The case was diagnosed as secondary myeloid/NK cell acute leukemia following non-Hodgkin's lymphoma. Despite aggressive chemotherapy against leukemia, she died of multiorgan failure 7 months following onset of leukemia. We present, to the best of our knowledge, the first published report of what seems to be a secondary myeloid/NK cell acute leukemia following T-cell lymphoma.
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Affiliation(s)
- J J Lee
- Department of Internal Medicine; Chonnam National University Medical School, Kwangju, Korea
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Abstract
To investigate telomere changes in patients with aplastic anaemia (AA) and clinical factors influencing the telomere dynamics, telomere length (TL) was measured in peripheral blood mononuclear cells using Southern blot analysis of 42 patients with AA and 39 healthy normal controls. Nineteen patients received supportive treatment only, while the remaining 23 patients received immunosuppressive therapy with anti-thymocyte globulin or anti-lymphocyte globulin +/- cyclosporin A. In AA patients, TL was on average 1.41 kb shorter than that of age-matched normal controls (P < 0.001). In patients treated with immunosuppression, the mean TL of non-responders was significantly shorter than that of age-matched normal controls (P < 0.001), while no difference in TL was detected in responders compared with controls. Positive correlation was observed between the extent of telomere shortening, the severity of neutropenia (P = 0.05) and the degree of mean corpuscular volume elevation (P = 0.005) at the time of the study. However, there was no correlation with time elapsed since diagnosis (P = 0.214). These findings suggest that haematopoietic stem cells in patients with AA rapidly lose TL at the onset of the disease. The TL shortening may reflect the severity of impairment of haematopoiesis.
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Affiliation(s)
- J J Lee
- Department of Internal Medicine, Chonnam National University Medical School, 8 Hak-Dong, Dong-Ku, Kwangju 501-757, South Korea
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Lee JJ, Chung IJ, Park MR, Kook H, Hwang TJ, Ryang DW, Kim HJ. Clinical efficacy of granulocyte transfusion therapy in patients with neutropenia-related infections. Leukemia 2001; 15:203-7. [PMID: 11236935 DOI: 10.1038/sj.leu.2402007] [Citation(s) in RCA: 57] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Granulocyte transfusions have been advocated by some for the treatment of severe, progressive infections in neutropenic patients who fail to respond to antimicrobial agents and recombinant hematopoietic growth factors. We conducted the current study to determine an appropriate method of granulocyte mobilization in healthy donors, and to evaluate the safety and efficacy of granulocyte transfusion therapy in patients with neutropenia-related infections. To mobilize granulocytes (n=55), healthy normal donors were stimulated in one of the following ways: (1) dexamethasone, 3 mg/m2 intravenously 15 min prior to leukapheresis (n = 5); (2) granulocyte colony-stimulating factor (G-CSF), 5 microg/kg subcutaneously 12 to 14 h prior to collection (n=37); or (3) G-CSF and dexamethasone (n= 13). The mean granulocyte yield from stimulation with G-CSF plus dexamethasone was significantly higher than from stimulation with dexamethasone or G-CSF alone. Twenty-five patients with severe neutropenia-related infections unresponsive to appropriate antimicrobial agents received a total of 55 granulocyte transfusions. The patients from whom fungi or Gram-negative organisms were isolated showed a more favorable response than those infected with Gram-positive organisms. However, the responses to the granulocyte transfusion therapy could not be correlated with the transfused dose, mobilization agents, or the 1 h or 24 h post-transfusion absolute neutrophil counts. We conclude that granulocyte transfusion therapy may be clinically useful for neutropenia-related infections by fungi or Gram-negative organisms.
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Affiliation(s)
- J J Lee
- Department of Internal Medicine, Chonnam National University Medical School, Kwangju, South Korea
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33
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Lee JJ, Chung IJ, Ahn YK, Park MR, Shin DH, Cho JG, Kim HJ. Life-threatening paroxysmal supraventricular tachycardia developed during granulocyte transfusion therapy for neutropenia-related infection. Leukemia 2000; 14:1324-5. [PMID: 10914563 DOI: 10.1038/sj.leu.2401826] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Abstract
Acquired hemophilia is a rare disorder associated with serious bleeding in nonhemophilic patients. We had a 40-year-old woman who was diagnosed as acquired hemophilia with a factor VIII inhibitor level of 27.5 BU/mL. She was presented with gross hematuria and severe right shoulder pain, and was successfully treated with daily oral cyclophosphamide and prednisone for 2 weeks. After the remission, the doses of prednisone and cyclophosphamide were slowly decreased and she remained in complete remission without further bleeding episodes.
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Affiliation(s)
- J J Lee
- Department of Internal Medicine and Clinical Pathology, Chonnam National University Medical School, Kwangju, Korea
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35
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Abstract
A 19-year-old woman with severe aplastic anemia who had previously failed antithymocyte globulin/cyclosporine A received high-dose cyclophosphamide without bone marrow rescue. On day +14, she complained of right upper quadrant abdominal pain and fever. A CT scan of the abdomen showed multiple liver abscesses with rupture and Klebsiella pneumoniae was isolated from blood. In spite of aggressive antibiotic therapy, she rapidly deteriorated and died of overwhelming sepsis. To our knowledge, our patient is the first case of fatal ruptured liver abscess after high-dose cyclophosphamide in a patient with severe aplastic anemia.
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Affiliation(s)
- J J Lee
- Blood and Marrow Transplant Program, Chonnam National University Medical School, Kwangju, Korea
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36
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Abstract
OBJECTIVE To compare oral misoprostol (100 microgram) to vaginal misoprostol (25 microgram) for cervical ripening and labor induction. METHODS Two hundred thirty-six women with medical or obstetric indications for labor induction and undilated, uneffaced cervices were assigned randomly to receive 100 microgram of oral or 25 microgram of vaginal misoprostol every 4 hours for 24 hours. Intravenous oxytocin was then given using a standardized protocol. We anticipated that 31% of women treated orally and 50% of women treated vaginally would deliver vaginally within 24 hours of starting labor induction. RESULTS Among 234 subjects, 121 received oral and 113 received vaginal misoprostol. The mean (+/- standard deviation [SD]) interval from start of induction to delivery was 1240 +/- 845 minutes for orally treated women and 1381 +/- 802 minutes for vaginally treated women (P =.06, log-transformed data). More orally treated women delivered vaginally in 24 hours than vaginally treated women (74 versus 54, P =.14, relative risk [RR] 1.14, 95% confidence interval [CI] 0.92, 1.40). One hundred six women (87.6%) who received oral misoprostol delivered vaginally, compared with 88 women (77.9%) who received vaginal misoprostol (P =.07). Oxytocin was given to 60 (49. 6%) orally treated and 59 (52.2%) vaginally treated subjects (P =. 69). More women in the oral group had tachysystole, nine compared with two (P =.06), hypertonus, and hyperstimulation. Frequencies of intrapartum complications and birth outcomes were similar between groups. CONCLUSION Oral misoprostol 100 microgram and vaginal misoprostol 25 microgram were similarly effective for cervical ripening and labor induction. Oral administration was associated with trends toward higher likelihood of vaginal delivery and more uterine tachysystole.
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Affiliation(s)
- D A Wing
- Department of Obstetrics-Gynecology, Division of Maternal-Fetal Medicine, Keck School of Medicine at the University of Southern California, Los Angeles, California, USA.
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37
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Abstract
While T-cell non-Hodgkin's lymphoma (NHL) associated with hemophagocytic syndrome (HPS) has been frequently observed, B-cell NHL associated with HPS has been rarely reported. We report a case of hepatosplenic B-cell lymphoma associated with HPS in a 41-year-old woman who presented with fever of unknown origin. An abdominal CT scan revealed splenomegaly with focal splenic infarction. Splenectomy and a liver wedge biopsy showed sinusoidal-pattern infiltration of medium to large tumor cells with positive reaction to a B-lymphocyte marker. Findings on bone marrow examination showed proliferation of histiocytes with avid hemophagocytosis.
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Affiliation(s)
- S Y Kwon
- Department of Internal Medicine, National University Medical School, Kwangju, Korea
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Lee JJ, Kim HJ, Chung IJ, Park MR, Seo KS, Jeong YY, Kim JK. Portal, mesenteric, and splenic vein thromboses after splenectomy in a patient with chronic myeloid leukemia variant with thrombocythemic onset. Am J Hematol 1999; 61:212-5. [PMID: 10398316 DOI: 10.1002/(sici)1096-8652(199907)61:3<212::aid-ajh10>3.0.co;2-l] [Citation(s) in RCA: 7] [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] [Indexed: 11/11/2022]
Abstract
Portal, mesenteric, or splenic vein thrombosis is a very uncommon complication with significant mortality in the patients undergoing splenectomy for hematologic disorders. We report a 49-year-old woman who developed portal, superior mesenteric, and splenic vein thromboses after splenectomy. Four years before the event, she presented with a marked thrombocytosis and was diagnosed to have chronic myeloid leukemia variant with thrombocythemic onset as evidence by Philadelphia (Ph1) chromosome and a b3a2 BCR/ABL transcript. Six weeks after splenectomy, she developed severe epigastric pain. The diagnosis of thromboses of portal, mesenteric, and splenic veins was made by computed tomography scan and Doppler sonogram. She was successfully treated with antegrade intraarterial urokinase therapy via superior mesenteric artery and long-term anticoagulant therapies. To our knowledge, our patient is the first case of portal, mesenteric, and splenic vein thromboses after splenectomy in a patient with CML variant with thrombocythemic onset successfully treated with antegrade intraarterial thrombolytic therapy followed by anticoagulant therapies.
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Affiliation(s)
- J J Lee
- Department of Internal Medicine, Chonnam National University Medical School, Kwangju, South Korea.
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Lee JJ, Kim HJ, Chung IJ, Kook H, Byun JR, Kwon SY, Park MR, Choi KS, Hwang TJ, Ryang DW. Acute hemolytic crisis with fulminant hepatic failure as the first manifestation of Wilson's disease: a case report. J Korean Med Sci 1998; 13:548-50. [PMID: 9811188 PMCID: PMC3054522 DOI: 10.3346/jkms.1998.13.5.548] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
We report a 27-year-old woman who developed Coombs' negative hemolytic anemia and fulminant hepatic failure as the initial manifestation of Wilson's disease. Unmeasurably low level of serum alkaline phosphatase provided a clue to the diagnosis of Wilson's disease. The diagnosis was established with the presence of Kayser-Fleischer ring, decreased serum ceruloplasmin level, and elevated urine and serum copper levels. In spite of repeated plasmapheresis, she died of multiorgan failure on the fifth hospital day.
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Affiliation(s)
- J J Lee
- Department of Internal Medicine, Chonnam National University Medical School, Kwangju, Korea
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40
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Abstract
We report on an 18-year-old man who had both acute monoblastic leukemia and Marfan syndrome. A diagnosis of Marfan syndrome was established by those characteristics of arachnodactyly, ectopia lentis, mitral valve prolapse, and mitral regurgitation. Findings on bone marrow examination of the patient showed that most of nucleated cells were monoblasts and immunophenotype of those cells showed CD13+, CD33+, CD56+, and HLA-DR+. To our knowledge, this is the second report of leukemia in Marfan syndrome in the world.
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Affiliation(s)
- J J Lee
- Department of Internal Medicine, Chonnam University Medical School, Kwangju, Korea
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41
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Kim YH, Choi IY, Park MR, Park TS, Cho JL. Prophylaxis for deep vein thrombosis with aspirin or low molecular weight dextran in Korean patients undergoing total hip replacement. A randomized controlled trial. Int Orthop 1998; 22:6-10. [PMID: 9549575 PMCID: PMC3619654 DOI: 10.1007/s002640050199] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
150 Korean patients undergoing primary uncemented total hip replacement were randomized into 3 treatment groups for deep vein thrombosis (DVT) prophylaxis. Group A(50) were controls; Group B(50) received aspirin 1.2 g daily in 3 divided doses from 2 days before, to 14 days after surgery; Group C(50), received low molecular weight dextran 500 ml, infused intravenously at 50 ml/hour during surgery, and on each of the following 2 days. Contrast venograms were performed prior to surgery and 7-10 days after. The incidence of DVT was 20% in the control group, 12% in the aspirin group (p < 0.1 vs control), and 6% in the dextran group (p < 0.05 vs control). In patients developing DVT, the ratio of proximal to distal thrombi was increased in the control group as compared to treated groups (4:1 in the control group vs 1.5:1 in the treated groups). Both aspirin and dextran were well tolerated. Obesity (p < 0.05) and long-term administration of steroids (p < 0.05) were risk factors for deep vein thrombosis which reached statistical significance in the control group. Intraoperative venograms performed on 10 patients, showed that hip flexion (mean 40.4 degrees) plus adduction (mean 11.5 degrees) plus internal rotation (mean 81.5 degrees), resulted in severe twisting or kinking of the femoral vein with stagnation of blood flow. Low molecular weight dextran significantly reduce the incidence of deep venous thrombosis and aspirin, though less effective, had a similar effect.
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Affiliation(s)
- Y H Kim
- Department of Orthopaedic Surgery, Hanyang University Guri Hospital, Korea
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42
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Kim HJ, Chung IJ, Lee JJ, Seo JS, Park MR, Choi KS, Kook H, Hwang TJ. A case of chronic graft-versus-host-disease following allogeneic peripheral blood stem cell rescue for poor graft function after bone marrow transplantation. Korean J Intern Med 1998; 13:60-3. [PMID: 9538634 PMCID: PMC4531930 DOI: 10.3904/kjim.1998.13.1.60] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
To overcome poor graft function after allogeneic bone marrow transplantation (BMT), the use of peripheral blood stem cells (PBSC) instead of bone marrow is gaining more popularity because of its advantages. There may, however, be an increased risk of graft-versus-host-disease (GVHD) because of the large number of lymphocytes present in a leukapheresis product. An 18-year-old man with severe aplastic anemia underwent an allogeneic BMT using his HLA-identical sister. After initial excellent graft take for 8 months, his blood counts gradually decreased to 2.8 x 10(9)/L of white cells and 28 x 10(9)/L of platelets with marrow cellularity of < 10%. After allogeneic granulocyte-colony stimulating factor mobilized PBSC rescue, the patient's blood counts recovered satisfactorily. Around 1 year after the boost, he developed chronic GVHD that responded to prednisolone and cyclosporin A. He is now well on low-dose steroids at day +1055 after PBSC rescue. The present case is the first experience of a long-term follow-up who underwent allogeneic PBSC rescue in Korea.
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Affiliation(s)
- H J Kim
- Department of Internal Medicine, Chonnam University Medical School, Kwangju, Korea
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Park TS, Choi IY, Kim YH, Park MR, Shon JH, Kim SI. A new suggestion for the treatment of minimally displaced fractures of the greater tuberosity of the proximal humerus. Bull Hosp Jt Dis 1997; 56:171-6. [PMID: 9361919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Fourteen shoulders in 14 patients with minimally displaced fractures of the greater tuberosity of the proximal humerus were evaluated, at an average of 3 years, 7 months (range: 1 year to 6 years, 1 month) after the operation. For comparison this portion of the proximal humerus was measured using 100 Korean adult cadaveric humeri. The results of these preliminary studies suggest that the patients presenting with a one-part fracture of the greater tuberosity of the proximal humerus should be evaluated individually. In most patients in whom the displacement of the fragment is less than 5 mm, good results can be obtained with non-operative treatment. If the displacement of the fragment is more than 5 mm in young active patients, and more than 3 mm in individuals (especially athletes and heavy laborers) involved in overhead activity, the fragment should be mobilized, repaired, and fixed into its original bed or slightly inferolaterally.
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Affiliation(s)
- T S Park
- Department of Orthopaedic Surgery, Hanyang University College of Medicine, Seoul, Korea
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Kim YH, Choi IY, Park MR, Park TS, Cho JL. Deep vein thrombosis after uncemented total hip replacement. Bull Hosp Jt Dis 1997; 56:133-9. [PMID: 9361912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
One-hundred-fourteen consecutive cases of venography after primary uncemented total hip replacement were performed in a randomized trial to identify the natural incidence of deep vein thrombosis, the effectiveness of prophylactic regimens such as 1.2 grams of aspirin daily and low-molecular-weight dextran for 3 days, and other relative factors for the development of venous thrombosis. In addition, intraoperative venography was conducted in 10 patients to study the speed of the flow of contrast media in the femoral vein and the development of deep vein thrombosis and the extent of the twisting of the femoral vein during hip joint manipulation. The incidence of venous thrombosis in the control, aspirin, and dextran prophylaxis groups were 20%, 11.5%, and 5.2% respectively. The incidence in the aspirin group was reduced, but this was statistically insignificant. The dextran group showed a marked decrease in incidence, and the difference with the control group was statistically significant. With regard to the development site of venous thrombosis, it was prevalent in iliofemoral, lower femoral, and major calf vein in the control group, while the popliteal and major calf vein were the major site of thrombosis development in the aspirin and dextran groups. The risk factors affecting the incidence of the venous thrombosis are confirmed to be obesity and long-term administration of steroids. Hematologic analysis was meaningless in investigating the development of venous thrombosis. The reliable clinical sign and symptom suggestive of the development of venous thrombosis was the severe swelling on the entire portion of affected lower extremity. In the intraoperative venogram, no correlation was found between the venous blood flow speed and the development of venous thrombi. A remarkable change in the blood flow of the femoral vein was noticed when the hip joint was flexed an average of 40.4 degrees, adducted at 11.5 degrees, and internally rotated at 81.5 degrees. Especially, when the joint was internally rotated, severe kinking of the vein could be observed. Thus it seems desirable to reduce the duration of internal rotation of the hip joint as much as possible to prevent venous thrombosis.
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Affiliation(s)
- Y H Kim
- Department of Orthopaedic Surgery, College of Medicine, Hanyang University, Kuri Hospital, Korea
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Affiliation(s)
- C S Kim
- Department of Chest Medicine, National Medical Center, Seoul, Korea
| | - H D Son
- Department of Chest Medicine, National Medical Center, Seoul, Korea
| | - M R Park
- Department of Chest Medicine, National Medical Center, Seoul, Korea
| | - J Y Seo
- Department of Chest Medicine, National Medical Center, Seoul, Korea
| | - D I Cho
- Department of Chest Medicine, National Medical Center, Seoul, Korea
| | - N S Rheu
- Department of Chest Medicine, National Medical Center, Seoul, Korea
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46
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Abstract
Ubiquitin is a protein that targets proteins for non-lysosomal degradation. It has been found to be present in a number of inclusions characteristic of neurodegenerative diseases. Using the fluid percussion model of closed head injury in the cat, a well-established model of diffuse axonal injury (DAI), we now report that the reactive axonal swellings and the retraction balls produced in this model stain positively with anti-ubiquitin immunohistochemistry. Furthermore, the affected axons become ubiquitin positive quickly (within the first 6 h after injury). Anti-ubiquitin immunohistochemistry compares well with the recently reported ability of antibodies to low molecular weight neurofilament proteins to demonstrate reactive axonal change in DAI, and it could provide additional clues to the pathogenesis of axonal transection.
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Affiliation(s)
- J B Schweitzer
- Brain Injury Research Center, University of Tennessee, Memphis 38163
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Hilton DL, Einhaus SL, Meric AL, White RP, Schweitzer JB, Park MR, Robertson JT. Early assessment of neurologic deficits in the fluid percussion model of brain injury. J Neurotrauma 1993; 10:121-33. [PMID: 8411216 DOI: 10.1089/neu.1993.10.121] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [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] [Indexed: 01/30/2023] Open
Abstract
This study was designed to quantify the early neurologic effects of brain injury elicited by fluid percussion to the dura of cats. Propofol was used for surgical anesthesia because recovery in normal animals from an intravenous infusion was found to be nearly complete within 2 h of cessation and absolutely complete by 4 h. In addition, a cat coma scale (CCS) was developed that reflects normal (CCS, 14) to moribund (CCS, 3) behavior. The CCS values at 6 h were compared with the force of injury expressed in atmospheres (atm), maximum blood pressure change, and gross neuropathology to ascertain which parameter might best account for the behavior observed after brain injury. The results showed that decreasing neurologic scores correlated well with increasing atmospheres of injury (Pearson's r 0.71, p < 0.001) but not with the rise in systolic blood pressure caused by the trauma (n = 29). Coma scores did correlate with the cross sectional area of ponto-mesencephalic lesions (Pearson's r = 0.51, p < 0.01) and proved to be significantly different in animals grouped according to lesion size of less or more than 3 mm in length (t test, p < 0.01). Thus the CCS and the pharmacologic properties of propofol permit an early analysis of the neurologic status in the feline fluid percussion model of brain injury. These procedures could facilitate the evaluation of early biochemical changes that affect behavior and of therapies designed to ameliorate the deleterious effects of head injury.
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Affiliation(s)
- D L Hilton
- Department of Neurosurgery, University of Tennessee, Memphis
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48
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Abstract
A simple, battery-powered current source is described that is suitable for the iontophoresis of axonal tracing substances, such as Phaseolus vulgaris leucoagglutinin. Unlike the previous designs that form the basis of most commonly used iontophoretic devices, this circuit does not use operational amplifiers to provide controlled current. Instead, a pair of bipolar transistors that can be selected to provide a compliance of many hundreds of volts form the regulating circuitry.
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Affiliation(s)
- M R Park
- Department of Anatomy and Neurobiology, University of Tennessee, Memphis 38163
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49
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Abstract
Under most experimental conditions in intracellular recording, the proper adjustment of the amplifier is essential for the interpretation of the signals recorded from neurons. It is considered possible to accurately align the capacitance compensation and bridge balance adjustments of the amplifier simultaneously with the recording of membrane potential of an impaled cell if a number of conditions are met. In the strictest sense, these conditions are met only if: (1) the neuron is isopotential and if its electrical behavior can be adequately described using a single exponential decay constant, and if (2) that decay time constant is much longer than that of the microelectrode. These conditions cannot usually be satisfied. Because intracellular adjustment of capacitance compensation and bridge balance is necessary in many circumstances, it is desirable, to know whether any of the methods for performing these adjustments are accurate when used under less strict constraints, and to assess the nature and degree of the error that can be expected when the constraints are ignored. The results of computer simulations of a simple intracellular recording amplifier, microelectrode and a dendritic neuron model consisting of an isopotential cell and terminated finite equivalent cylinder representation of the dendrites are presented here. These studies show that the introduction of fast components of the response to intracellular current transients by the redistribution of applied charge in dendrite neurons may sometimes make it impossible to correctly apply the conventional methods of capacitance compensation and bridge balance. If the high-frequency response of the intracellular recording amplifier has sufficient fidelity, however, these adjustments can be made to a sufficient degree of accuracy using the response to sine wave calibration signals of varying frequency.
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Affiliation(s)
- C J Wilson
- Department of Anatomy and Neurobiology, University of Tennessee, Memphis 38163
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Behbehani MM, Park MR, Clement ME. Interactions between the lateral hypothalamus and the periaqueductal gray. J Neurosci 1988; 8:2780-7. [PMID: 2900881 PMCID: PMC6569401] [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] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Anatomical and physiological experiments were conducted to characterize the interactions between the lateral hypothalamus (LH) and the periaqueductal gray (PAG) and to determine the role of neurotensin in their interaction. Anatomical studies using injection of Phaseolus vulgaris leucoagglutinin into the LH showed an extensive projection to the ventromedial and the ventrolateral PAG and a less dense projection to the medial and dorsal parts of this region. Physiological experiments were performed on both deeply and lightly anesthetized animals. Electrical stimulation of the LH caused excitation of PAG cells with an onset latency of approximately 14 msec. There was a strong correlation between the response of PAG cells to electrical stimulation and injection of glutamic acid into the LH. Electrical or chemical stimulation of the LH produced an increase in tail flick latency in the lightly anesthetized animals that outlasted the stimulation period. There was a strong correlation between the response of PAG cells to electrical and chemical stimulation of the LH and their response to pressure-injected neurotensin. It is concluded that an excitatory projection from the LH to PAG exists which may involve neurotensin. This pathway may be involved in the analgesia produced by LH stimulation.
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Affiliation(s)
- M M Behbehani
- Department of Physiology and Biophysics, University of Cincinnati, College of Medicine, Ohio 45267
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