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Moon AR, Kim S, Kwon SY, Son S. Analyzing National Red List Data of East Asia. Journal of Asia-Pacific Biodiversity 2023. [DOI: 10.1016/j.japb.2023.01.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2023] Open
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2
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Kwon R, Son S. 103P Microsomal triglyceride transfer protein as a prognostic and therapeutic marker for brain cancer. ESMO Open 2023. [DOI: 10.1016/j.esmoop.2023.100961] [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: 03/11/2023] Open
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Chae HH, Kim YC, Hong BR, Lee KS, Son S. Distributional status and evaluation of species traits a Korean endemic plant of Zabelia tyaihyonii (Nakai) Hisauti & Hara (Caprifoliaceae). Journal of Asia-Pacific Biodiversity 2023. [DOI: 10.1016/j.japb.2022.12.008] [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: 01/03/2023] Open
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Chae HH, Kim YC, Lee KS, Son S. Ecological role of traditional graveyards in the persistence of Thalictrum petaloideum L. population in Korean limestone area. Journal of Asia-Pacific Biodiversity 2022. [DOI: 10.1016/j.japb.2022.09.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022] Open
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Chung MY, Son S, Herrando-Moraira S, Tang CQ, Maki M, Kim YD, López-Pujol J, Hamrick JL, Chung MG. Incorporating differences between genetic diversity of trees and herbaceous plants in conservation strategies. Conserv Biol 2020; 34:1142-1151. [PMID: 31994789 DOI: 10.1111/cobi.13467] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 10/09/2019] [Accepted: 01/10/2020] [Indexed: 05/22/2023]
Abstract
Reviews that summarize the genetic diversity of plant species in relation to their life history and ecological traits show that forest trees have more genetic diversity at population and species levels than annuals or herbaceous perennials. In addition, among-population genetic differentiation is significantly lower in trees than in most herbaceous perennials and annuals. Possible reasons for these differences between trees and herbaceous perennials and annuals have not been discussed critically. Several traits, such as high rates of outcrossing, long-distance pollen and seed dispersal, large effective population sizes (Ne ), arborescent stature, low population density, longevity, overlapping generations, and occurrence in late successional communities, may make trees less sensitive to genetic bottlenecks and more resistant to habitat fragmentation or climate change. We recommend that guidelines for genetic conservation strategies be designed differently for tree species versus other types of plant species. Because most tree species fit an LH scenario (low [L] genetic differentiation and high [H] genetic diversity), tree seeds could be sourced from a few populations distributed across the species' range. For the in situ conservation of trees, translocation is a viable option to increase Ne . In contrast, rare herbaceous understory species are frequently HL (high differentiation and low diversity) species. Under the HL scenario, seeds should be taken from many populations with high genetic diversity. In situ conservation efforts for herbaceous plants should focus on protecting habitats because the typically small populations of these species are vulnerable to the loss of genetic diversity. The robust allozyme genetic diversity databases could be used to develop conservation strategies for species lacking genetic information. As a case study of reforestation with several tree species in denuded areas on the Korean Peninsula, we recommend the selection of local genotypes as suitable sources to prevent adverse effects and to insure the successful restoration in the long term.
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Affiliation(s)
- Mi Yoon Chung
- Research Institute of Natural Science (RINS), Gyeongsang National University, Jinju, 52828, Republic of Korea
| | - Sungwon Son
- Division of Plant Resources, Korea National Arboretum, Yangpyeong, 12519, Republic of Korea
| | - Sonia Herrando-Moraira
- Botanic Institute of Barcelona (IBB, CSIC-Ajuntament de Barcelona), Barcelona, Catalonia, 08038, Spain
| | - Cindy Q Tang
- School of Ecology and Environmental Science, Yunnan University, Kunming, Yunnan, 650504, China
| | - Masayuki Maki
- Botanical Gardens, Tohoku University, Aoba, Sendai, 980-0862, Japan
| | - Young-Dong Kim
- Department of Life Sciences, Hallym University, Chuncheon, 24252, Republic of Korea
| | - Jordi López-Pujol
- Botanic Institute of Barcelona (IBB, CSIC-Ajuntament de Barcelona), Barcelona, Catalonia, 08038, Spain
| | - James L Hamrick
- Department of Plant Biology, University of Georgia, Athens, GA, 30602, U.S.A
| | - Myong Gi Chung
- Division of Life Science and the RINS, Gyeongsang National University, Jinju, 52828, Republic of Korea
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Ghimire B, Son S, Kim JH, Jeong MJ. Gametophyte and embryonic ontogeny: understanding the reproductive calendar of Cypripedium japonicum Thunb. (Cypripedoideae, Orchidaceae), a lady's slipper orchid endemic to East Asia. BMC Plant Biol 2020; 20:426. [PMID: 32933474 PMCID: PMC7493375 DOI: 10.1186/s12870-020-02589-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Accepted: 08/10/2020] [Indexed: 06/11/2023]
Abstract
BACKGROUND The genus Cypripedium L. is one of the five genera of the subfamily Cypripedioideae, members of which are commonly known as lady's slipper orchids. Cypripedium japonicum is a perennial herb native to East Asia, specifically China, Japan, and Korea. Due to its limited distribution, the species is included in the Endangered category of the IUCN Red List. RESULTS We investigated gametophyte development, including complete embryogenesis, in C. japonicum. The complete reproductive cycle is presented based on our observations. Anther development begins under the soil, and meiosis of pollen mother cells begins 3 weeks before anthesis, possibly during early April. The megaspore mother cells develop just after pollination in early May and mature in mid-late June. The pattern of embryo sac formation is bisporic, and there are six nuclei: three forming the egg apparatus, two polar nuclei, and an antipodal cell in the mature embryo sac. Triple fertilization results in the endosperm nucleus, which degenerates when the proembryo reaches the eight-to-sixteen-cell stage. CONCLUSION Our overall comparisons of the features of gametophyte and embryo development in C. japonicum suggest that previous reports on the embryology of Cypripedium are not sufficient for characterization of the entire genus. Based on the available information, a reproductive calendar showing the key reproductive events leading to embryo formation has been prepared.
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Affiliation(s)
- Balkrishna Ghimire
- Division of Forest Biodiversity, Korea National Arboretum, Pocheon, 11186, South Korea
| | - Sungwon Son
- Division of Plant Resources, Korea National Arboretum, Yongmun, 12519, South Korea
| | - Jae Hyeun Kim
- Division of Plant Resources, Korea National Arboretum, Yongmun, 12519, South Korea
| | - Mi Jin Jeong
- Division of Plant Resources, Korea National Arboretum, Yongmun, 12519, South Korea.
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Chung J, Kim S, Yoon S, Son S. Efficacy and safety of repetitive transcranial magnetic stimulation for weight loss in obesity. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.912] [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: 10/27/2022] Open
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Son S, Kim H, Shin I. Matricellular protein CCN3/NOV regulates tumorigenesis in triple-negative breast cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz029.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Park S, Son S, Shin M, Fujii N, Hoshino T, Park S. Transcriptome-wide mining, characterization, and development of microsatellite markers in Lychnis kiusiana (Caryophyllaceae). BMC Plant Biol 2019; 19:14. [PMID: 30621589 PMCID: PMC6325733 DOI: 10.1186/s12870-018-1621-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2017] [Accepted: 12/27/2018] [Indexed: 05/23/2023]
Abstract
BACKGROUND Lychnis kiusiana Makino is an endangered perennial herb native to wetland areas in Korea and Japan. Despite its conservational and evolutionary significance, population genetic resources are lacking for this species. Next-generation sequencing has been accepted as a rapid and cost-effective solution for the identification of microsatellite markers in nonmodel plants. RESULTS Using Illumina HiSeq 2000 sequencing technology, we assembled 67,498,600 reads into 91,900 contigs and identified 11,403 microsatellite repeat motifs in 9563 contigs. A total of 4510 microsatellite-containing transcripts had Gene Ontology (GO) annotations, and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis identified 124 pathways with significant scores. Many microsatellites in the L. kiusiana leaf transcriptome were linked to genes involved in the plant response to light intensity, salt stress, temperature stimulus, and nutrient and water deprivation. A total of 12,486 single-nucleotide polymorphisms (SNPs) were identified on transcripts harboring microsatellites. The analysis of nucleotide substitution rates for 2389 unigenes indicated that 39 genes were under strong positive selection. The primers of 6911 microsatellites were designed, and 40 of 50 selected primer pairs were consistently and successfully amplified from 51 individuals. Twenty-five of these were polymorphic, and the average number of alleles per SSR locus was 6.96, with a range from 2 to 15. The observed and expected heterozygosities ranged from 0.137 to 0.902 and 0.131 to 0.827, respectively, and locus-specific FIS estimates ranged from - 0.116 to 0.290. Eleven of the 25 primer pairs were successfully amplified in three additional species of Lychnis: 56% in L. wilfordii, 64% in L. cognata and 80% in L. fulgens. CONCLUSIONS The transcriptomic SSR markers of Lychnis kiusiana provide a valuable resource for understanding the population genetics, evolutionary history, and effective conservation management of this species. Furthermore, the identified microsatellite loci linked to the annotated genes should be useful for developing functional markers of L. kiusiana. The developed markers represent a potentially valuable source of transcriptomic SSR markers for population genetic analyses with moderate levels of cross-taxon portability.
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Affiliation(s)
- Seongjun Park
- Institute of Natural Science, Yeungnam University, Gyeongsan, Gyeongbuk 38541 South Korea
- Department of Life Sciences, Yeungnam University, Gyeongsan, Gyeongbuk 38541 South Korea
| | - Sungwon Son
- Plant Conservation Division, Korea National Arboretum, Pocheon, Gyeonggi 11186 South Korea
| | - Myungju Shin
- Department of Life Sciences, Yeungnam University, Gyeongsan, Gyeongbuk 38541 South Korea
| | - Noriyuki Fujii
- Department of Biological Science, Graduate School of Science and Technology, Kumamoto University, Chuo-ku, Kumamoto, 860-8555 Japan
| | - Takuji Hoshino
- Faculty of Biosphere-Geosphere Science, Okayama University of Science, Kita-ku, Okayama, 700-0005 Japan
| | - SeonJoo Park
- Department of Life Sciences, Yeungnam University, Gyeongsan, Gyeongbuk 38541 South Korea
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Jeon S, Kim J, Son S, Park S, Kim J, Park J. Dosimetric Implication of Planning Organ at Risk Volumes in Stereotactic Body Radiation Therapy of Spine. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.1448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Chung MY, Son S, Suh GU, Herrando-Moraira S, Lee CH, López-Pujol J, Chung MG. The Korean Baekdudaegan Mountains: A Glacial Refugium and a Biodiversity Hotspot That Needs to Be Conserved. Front Genet 2018; 9:489. [PMID: 30405696 PMCID: PMC6206444 DOI: 10.3389/fgene.2018.00489] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 10/01/2018] [Indexed: 11/18/2022] Open
Affiliation(s)
- Mi Yoon Chung
- Research Institute of Natural Science, Gyeongsang National University, Jinju, South Korea
| | - Sungwon Son
- Plant Conservation Division, Korea National Arboretum, Pocheon, South Korea
| | - Gang Uk Suh
- Plant Conservation Division, Korea National Arboretum, Pocheon, South Korea
| | | | - Cheul Ho Lee
- Plant Conservation Division, Korea National Arboretum, Pocheon, South Korea
| | | | - Myong Gi Chung
- Division of Life Science and the Research Institute of Natural Science, Gyeongsang National University, Jinju, South Korea
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Paek S, Seok S, Park J, Jeon Y, Byun J, Son S, Lee S, Kim J, Hwang J, Kim J, Lyu S, Kim J, Kwak I, Lee W. Can single good quality frozen-thawed blastocyst transfer augment pregnancy rates in patients with elevated progesterone? Fertil Steril 2018. [DOI: 10.1016/j.fertnstert.2018.07.1034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Son S, Gosling R, Morris P, Gunn J. What will be the Impact of Virtual Coronary Physiology upon the Practice of Coronary Artery Bypass Grafting Surgery for Patients with Coronary Artery Disease? Int J Surg 2018. [DOI: 10.1016/j.ijsu.2018.05.712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
The roughness is a common property of all growing surfaces – however, the way the roughness of a growing surface changes with time and space is uniquely related to the underlying growth process, i.e. to how the atoms stick to the surface during the first stage of nucleation. This concept allows getting insights on the nucleation process of a growing surface by measuring two scaling exponents, α and β, known as roughness and growth exponents, respectively. In this work, we studied hydrogenation of graphene using the roughening kinetics. The coverage of graphene will depend on how the H ions stick on the surface, giving rise to a unique roughness evolution in time and space. We measured a roughness exponent of ~0.5 (derived from a Fourier index of ~3), and a growth exponent of ~0.3. The values of the growth and roughness exponents are close to those reported for clustered carbon, suggesting a roughening mechanism by clustering, in good agreement with the theory. We also compared our coverage data with a different model, used to describe the dynamics of graphene coverage, during chemical vapour deposition. Our data are in agreement with a nucleation-dominated growth, further confirming that hydrogenation is happening by clustering.
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Affiliation(s)
- S Son
- School of Physics and Astronomy, University of Manchester, Manchester, M13 9PL, UK.,National Graphene Institute, University of Manchester, Manchester, M13 9PL, UK
| | - J Figueira Nunes
- School of Chemistry, University of Manchester, Manchester, M13 9PL, UK
| | - Y Shin
- School of Chemistry, University of Manchester, Manchester, M13 9PL, UK
| | - J-H Lee
- National Graphene Institute, University of Manchester, Manchester, M13 9PL, UK.,Department of Energy Systems Research and Department of Materials Science and Engineering, Ajou University, Suwon, 16499, Republic of Korea
| | - C Casiraghi
- School of Chemistry, University of Manchester, Manchester, M13 9PL, UK.
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Son S, Thamlikitkul V, Chokephaibulkit K, Perera J, Jayatilleke K, Hsueh PR, Lu CY, Balaji V, Moriuchi H, Nakashima Y, Lu M, Yang Y, Yao K, Kim SH, Song JH, Kim S, Kim MJ, Heininger U, Chiu CH, Kim YJ. Prospective multinational serosurveillance study of Bordetella pertussis infection among 10- to 18-year-old Asian children and adolescents. Clin Microbiol Infect 2018; 25:250.e1-250.e7. [PMID: 29689428 DOI: 10.1016/j.cmi.2018.04.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [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: 01/25/2018] [Revised: 04/11/2018] [Accepted: 04/16/2018] [Indexed: 12/01/2022]
Abstract
OBJECTIVES Bordetella pertussis continues to cause outbreaks worldwide. To assess the role of children and adolescent in transmission of pertussis in Asia, we performed a multinational serosurveillance study. METHODS From July 2013 to June 2016, individuals aged 10 to 18 years who had not received any pertussis-containing vaccine within the prior year were recruited in 10 centres in Asia. Serum anti-pertussis toxin (PT) IgG was measured by ELISA. Demographic data and medical histories were obtained. In the absence of pertussis immunization, anti-PT IgG ≥62.5 IU/mL was interpreted as B. pertussis infection within 12 months prior, among them levels ≥125 IU/mL were further identified as infection within 6 months. RESULTS A total of 1802 individuals were enrolled. Anti-PT IgG geometric mean concentration was 4.5, and 87 (4.8%) individuals had levels ≥62.5 IU/mL; among them, 73 (83.9%) had received three or more doses of pertussis vaccine before age 6 years. Of 30 participants with persistent cough during the past 6 months, one (3.3%) had level ≥125 IU/mL. There was no significant difference in proportions with anti-PT IgG ≥62.5 IU/mL among age groups (13-15 vs. 10-12 years, 16-18 vs. 10-12 years), between types of diphtheria, pertussis and tetanus (DTP; whole cell vs. acellular), number of doses before age 6 years within the DTP whole-cell pertussis vaccine (five vs. four doses) or acellular pertussis vaccine (five vs. four doses) and history of persistent cough during the past 6 months (yes vs. no). CONCLUSIONS There is significant circulation of B. pertussis amongst Asian children and adolescents, with one in 20 having serologic evidence of recent infection regardless of vaccination background.
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Affiliation(s)
- S Son
- Samsung Medical Center, Sungkyunkwan University, Department of Pediatrics, Seoul, South Korea
| | - V Thamlikitkul
- Faculty of Medicine Siriraj Hospital, Mahidol University, Department of Medicine, Bangkok, Thailand
| | - K Chokephaibulkit
- Faculty of Medicine Siriraj Hospital, Mahidol University, Department of Medicine, Bangkok, Thailand
| | - J Perera
- University of Colombo, Department of Microbiology, Colombo, Sri Lanka
| | - K Jayatilleke
- Sri Jayewardenepura General Hospital, Department of Microbiology, Nugegoda, Sri Lanka
| | - P-R Hsueh
- National Taiwan University Hospital, Departments of Laboratory Medicine and Internal Medicine, Taipei, Taiwan
| | - C-Y Lu
- National Taiwan University Hospital, Department of Pediatrics, Taipei, Taiwan
| | - V Balaji
- Christian Medical College & Hospital, Department of Clinical Microbiology, Vellore, India
| | - H Moriuchi
- Graduate School of Biomedical Sciences, Nagasaki University, Department of Molecular Microbiology and Immunology, Nagasaki, Japan
| | - Y Nakashima
- Graduate School of Biomedical Sciences, Nagasaki University, Department of Molecular Microbiology and Immunology, Nagasaki, Japan
| | - M Lu
- Shanghai Children's Hospital, Department of Pulmonary Medicine, Shanghai, China
| | - Y Yang
- Beijing Children's Hospital, Capital Medical University, Department of Microbiology and Immunology, Beijing, China
| | - K Yao
- Beijing Children's Hospital, Capital Medical University, Department of Microbiology and Immunology, Beijing, China
| | - S H Kim
- Asia Pacific Foundation for Infectious Diseases (APFID), Division of Infectious Disease, Seoul, South Korea
| | - J H Song
- Asia Pacific Foundation for Infectious Diseases (APFID), Division of Infectious Disease, Seoul, South Korea
| | - S Kim
- Samsung Medical Center, Statistics and Data Center, Seoul, South Korea
| | - M-J Kim
- Samsung Medical Center, Statistics and Data Center, Seoul, South Korea
| | - U Heininger
- University of Basel Children's Hospital, Pediatric Infectious Diseases and Vaccinology, Basel, Switzerland
| | - C-H Chiu
- Chang Gung Children's Hospital, Chang Gung University, Department of Pediatrics, Taoyuan, Taiwan.
| | - Y-J Kim
- Samsung Medical Center, Sungkyunkwan University, Department of Pediatrics, Seoul, South Korea.
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Augspurger NR, Peterson GI, Son S, McCormick K, King M. 348 The Effect of a Bacillus Subtilis-Based Direct-Fed Microbial Feed Additive on the Lactation Performance of Sows and Their Offspring. J Anim Sci 2018. [DOI: 10.1093/jas/sky073.345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | | | - S Son
- Microbial Discovery Group, Franklin, WI
| | | | - M King
- Microbial Discovery Group, Franklin, WI
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Jeon S, Kim J, Son S, Park S, Kim J, Park J. EP-1925: Dosimetric implication of planning organ at risk volumes in stereotactic body radiotherapy of spine. Radiother Oncol 2018. [DOI: 10.1016/s0167-8140(18)32234-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Kang IC, Kim IK, Son S, Ju MK. Impact of Early Hospital Readmissions After Kidney Transplantation on Graft Function. Transplant Proc 2018; 50:2359-2362. [PMID: 30316358 DOI: 10.1016/j.transproceed.2017.12.062] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Accepted: 12/18/2017] [Indexed: 12/31/2022]
Abstract
Early hospital readmissions are common after kidney transplantation. This single-center retrospective study investigated the relationship between early hospital readmissions and clinical outcomes. All adult patients receiving a kidney transplant at this center between March 2009 and June 2015 were included. The early hospital readmissions within the first 30 days were numbered, and the diagnosis was ascertained. The patients were divided into None and Readmission groups. Clinical outcomes and patient- and death-censored graft survival were compared. Among the 103 patients included in the study, 32 (31.1%) had 1 or more readmissions within 30 days. Surgical complications, electrolyte imbalance, and acute rejection were common causes of readmission. No differences were observed in baseline characteristics between the two groups. Patients with early readmissions exhibited low renal function at 3, 6, and 12 months postoperatively (P = .002, .020, and .013, respectively). No difference in graft function was found 12 months after transplantation between the None and Readmission groups. Five-year graft and patient survival also showed no difference between the two groups (P = .424 and .442, respectively). In conclusion, early readmission after kidney transplantation affected lower graft function until 1 year after kidney transplantation. However, the long-term effect on graft function is limited in this study.
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Affiliation(s)
- I-C Kang
- Division of Transplantation, Critical Care and Trauma Surgery, Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - I-K Kim
- Division of Transplantation, Critical Care and Trauma Surgery, Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - S Son
- Division of Transplantation, Critical Care and Trauma Surgery, Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - M K Ju
- Division of Transplantation, Critical Care and Trauma Surgery, Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
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Kim IK, Choi SH, Son S, Ju MK. Early Weight Gain After Transplantation Can Cause Adverse Effect on Transplant Kidney Function. Transplant Proc 2016; 48:893-6. [PMID: 27234761 DOI: 10.1016/j.transproceed.2015.10.064] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 09/17/2015] [Accepted: 10/03/2015] [Indexed: 11/26/2022]
Abstract
BACKGROUND The outcomes of kidney transplant recipients with increased body mass index (BMI) remain controversial. We studied the relationship between changes in BMI and kidney transplant function, especially during the first year after transplantation. METHODS We performed an observational cohort study of all kidney transplant recipients at our center from March 2009 to June 2014 to determine whether changes in BMI were associated with kidney transplant function, as measured by estimated glomerular filtration rate (eGFR). Recipient BMI and eGFR were calculated pre-transplant and at 1, 3, 6, 9, and 12 postoperative months (POM) after transplantation. The correlation between changes in BMI and eGFR was then evaluated. RESULTS Eighty-one patients were studied. There was a strong negative correlation between changes in BMI and eGFR from pre-transplant to POM 1 (correlation coefficient, -0.406; P < .0001) and from POM 1 to POM 3 (r = -0.324, P = .004). CONCLUSIONS We found that increased BMI caused a significant decline in renal function as measured by eGFR, especially in the initial 3 months after kidney transplantation.
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Affiliation(s)
- I K Kim
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - S H Choi
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - S Son
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea
| | - M K Ju
- Department of Surgery, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.
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Abstract
BACKGROUND The purpose of this study was to understand the adjustment process after kidney transplantation. METHODS The research method followed grounded theory methodology of Strauss and Corbin. Twelve recipients after kidney transplantation were selected. The data were collected through in-depth, face-to-face interviews or e-mailing or phone-interviews and analyzed by means of a constant comparative method. RESULTS Through the category analysis, "struggling for independence" was verified as the central phenomenon of recipients, and the causal conditions that influence this phenomenon were "unpredictable physical status," "the difficulty of self-care," "apathy of families and friends," and "emotional instability." The contextual conditions were "social prejudice" and "difficulty in returning to society," and the intervening conditions were "significant others support" and "religious support." The action/interaction strategies were "inner reviewing strategies," "interactive strategies," and "active self-maintaining strategies." From this observation, "establishing guidelines for living" was derived as the result. CONCLUSIONS The results of this study provided deep understanding on the adjustment process after kidney transplantation, and this would help to provide a frame for individualized medical and nursing intervention strategies in assisting the psychosocial adaptation of the kidney transplantation recipient.
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Affiliation(s)
- M K Ju
- Department of Surgery, Gangnam Severance Hospital, Yonsei University, Seoul, Korea
| | - S Son
- Department of Surgery, Gangnam Severance Hospital, Yonsei University, Seoul, Korea
| | - S Kim
- Mo-Im Kim Nursing Research Institute, College of Nursing, Yonsei University, Seoul, Korea.
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Augspurger NR, Spencer JD, Son S, Ley JA, King MR. 162 Improved growth performance of nursery pigs fed diets supplemented with a Bacillus subtilis-based direct-fed microbial feed additive. J Anim Sci 2016. [DOI: 10.2527/msasas2016-162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Son S, Kim D, Mun J. The Quality of VMAT Plans for Spine SABR According to the Collimator Angle. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.2018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Affiliation(s)
- H. Kim
- Exercise Sciences, Brigham Young University, Provo, United States
| | - S. Son
- Exercise Sciences, Brigham Young University, Provo, United States
| | - M. Seeley
- Exercise Sciences, Brigham Young University, Provo, United States
| | - J. Hopkins
- Human Performance Research Center, Brigham Young University, Provo, United States
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Lee S, Jin G, Kim D, Son S, Lee K, Lee C. Indole derivatives inhibit hepatitis C virus replication through induction of pro-inflammatory cytokines. Acta Virol 2015; 59:64-77. [PMID: 25790053 DOI: 10.4149/av_2015_01_64] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Previously, we discovered a series of indole derivatives as a new class of hepatitis C virus (HCV) replication inhibitors by using a target-free chemical genetic strategy. Through a structure-activity relationship study, the compound 12e was identified as the most potent inhibitor of this class (EC50 = 1.1 μmol/l) with minimal cytotoxicity (CC50 = 61.8 μmol/l). In order to gain insight into its detailed antiviral mechanism of action, we performed PCR array analyses and found that 12e was able to activate transcription of a number of pro-inflammatory as well as antiviral cytokine genes including CXCL-8, IL-1α, TNF-α, IL-3, IRAK-1, and DDX58. Their induction by 12e was verified by individual RT-PCR analyses. In addition, 12e was found to stimulate secretion of soluble factors with anti-HCV replication activity. Among the 12e-induced pro-inflammatory cytokines, CXCL-8 showed a strong positive correlation between its transcriptional activation and antiviral potency. Interestingly, a recombinant CXCL-8 protein also reduced HCV replication, though only moderately. In conclusion, we found a novel mode of action of indole derivatives in inhibiting HCV replication, particularly the induction of pro-inflammatory cytokines.
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Reis WL, Biancardi VC, Son S, Antunes-Rodrigues J, Stern JE. Carbon monoxide and nitric oxide interactions in magnocellular neurosecretory neurones during water deprivation. J Neuroendocrinol 2015; 27:111-22. [PMID: 25494574 DOI: 10.1111/jne.12245] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 11/13/2014] [Accepted: 12/07/2014] [Indexed: 12/21/2022]
Abstract
Nitric oxide (NO) and carbon monoxide (CO) are diffusible gas messengers in the brain. Previously, we have shown their independent involvement in central fluid/electrolyte homeostasis control. In the present study, we investigated a possible functional interaction between NO/CO in the regulation of vasopressin (VP) and oxytocin (OT) magnocellular neurosecretory cells (MNCs) activity in euhydrated (EU) and dehydrated [48-h water-deprived (48WD)] rats. Using brain slices from EU and 48WD rats, we measured, by immunohistochemistry, the expression of neuronal NO synthase (nNOS, which synthesises NO) and haeme-oxygenase (HO-1, which synthesises CO) in the hypothalamic supraoptic nucleus (SON). In addition, we used patch-clamp electrophysiology to investigate whether regulation of SON MNC firing activity by endogenous CO was dependent on NO bioavailability and GABAergic inhibitory synaptic function. We found a proportion of OT and VP SON MNCs in EU rats to co-express both of HO-1 and nNOS (33.2 ± 2.9% and 15.3 ± 1.4%, respectively), which was increased in 48WD rats (55.5 ± 0.9% and 21.0 ± 1.7%, respectively, P < 0.05 for both). Inhibition of endogenous HO activity [chromium mesoporphyrin IX chloride (CrMP) 20 μm] induced MNC membrane hyperpolarisation and decreased firing activity, and these effects were blunted by previous blockade of endogenous NOS activity (l-NAME, 2 mm) or blockade of inhibitory GABA function [Picrotoxin (Sigma-Aldrich, St Louis, MO, USA), 50 μm]. No significant changes in SON NO bioavailability (4,5 diaminofluorescein diacetate fluorescence) were observed after CrMP treatment. Taken together, our results support a state-dependent functional inter-relationship between NO and CO in MNCs, in which CO acts as an excitatory gas molecule, whose effects are largely dependent on interactions with the inhibitory SON signals NO and GABA.
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Affiliation(s)
- W L Reis
- Department of Physiology, Georgia Regents University, Augusta, GA, USA; Department of Physiology, School of Medicine of Ribeirao Preto, University of Sao Paulo, Ribeirao Preto, SP, Brazil
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Park D, Yu H, Jung D, Park Y, Son S, Ahn S, Kim H. 37. Risk factors of postoperative pancreatic fistula in curative gastric cancer surgery. Eur J Surg Oncol 2014. [DOI: 10.1016/j.ejso.2014.08.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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29
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Han H, Son S, Yun J, Lee O. Microrna-29A Suppresses Growth, Migration and Invasion of Lung Adenocarcinoma By Targeting Carcinoembryonic Antigen-Related Cell Adhesion Molecule 6. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu326.24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Son S, Lee O, Lee Y, Lee H, Song H, Han H, Han J. Diagnostic Performance of Cd66C in Lung Adenocarcinoma-Associated Malignant Pleural Effusion: Comparison with Cea, Ca 19-9, and Cyfra 21-1. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu326.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Lee O, Kim J, Park G, Kim M, Son S, Ha S, Oh C. Non-invasive assessment of cutaneous wound healing using fluorescent imaging. Skin Res Technol 2014; 21:108-13. [PMID: 25066671 DOI: 10.1111/srt.12165] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2014] [Indexed: 11/29/2022]
Abstract
BACKGROUND/PURPOSE Optical imaging is a very important technique in the biomedical sciences. The purpose of this study was to develop an in vivo optical system for fluorescent imaging and molecular imaging applications using quantum dots (QDs). METHODS The in vivo optical system was composed of modular parts, including a light source, light guide, excitation filter wheel, excitation filters, emission filter wheel, emission filters, liquid crystal tunable filter (LCTF), macro lens, dark chamber, and a cooled charged-coupled device (CCD) camera for recording images. Filters were selected based on the excitation and absorption spectra of QDs to allow spectral separation and optimization of the acquired image. In contrast with conventional systems, our system allows selection of the emission bandwidth. RESULTS The system was tested in an in vivo study using a wound-healing model in nude mice. The healing process was examined after injection of fibroblasts and keratinocytes labeled with two different sets of QDs. The different QD probes were readily detected and distinguished using our system. CONCLUSION An in vivo optical system is a very useful tool for the detection of genes, proteins, and small-molecule drugs inside living animals, and this imaging modality can also be adopted for real-time visualization of cancer cell metastasis in live animals.
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Affiliation(s)
- O Lee
- Department of Radiological Science, College of Nursing and Health Science, Gimcheon University, Gimcheon, Korea
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Son S, Moon SJ, Park JY. Frequency downshift of Nd:YAG lasers and terahertz radiation. Opt Lett 2013; 38:4578-4580. [PMID: 24322078 DOI: 10.1364/ol.38.004578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The interaction between an intense laser and a cotraveling relativistic dense electron beam could result in the downshifting of the laser frequency. It is theoretically analyzed that this process can generate a coherent terahertz radiation. The radiation energy could reach the order of 1 mJ per shot in the duration of 100 ps, or a temporal radiation power of 10 MW, with a set of practically relevant parameters.
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Kwak Y, Kay C, Son S, Jung J, Jo I, Kim T, Ro D, Kim Y. Comparison of IMRT Versus Conventional Radiation Therapy Concerning Acute Toxicities in Cervical Cancer Treatment. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1062] [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: 10/26/2022]
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Jang H, Kang Y, Jung J, Shin H, Kay C, Byung Ock C, Son S. Evaluation Novel Look Up Table Method for MRI-Based Radiation Therapy Treatment Planning. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1866] [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: 10/26/2022]
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Yoon D, Jang G, Kim J, Kim YH, Son S, Kim J, Park SI, Kim H, Jung HY, Lee GH, Choi K, Song H, Song H, Shin J, Cho KJ, Kim SB. Randomized Phase II Study of Preoperative Concurrent chemoradiotherapy with or without Induction Chemotherapy with S-1 and Oxaliplatin in Patients with Resectable Esophageal Cancer. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32046-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Ueno S, Motoyoshi M, Mayahara K, Saito Y, Akiyama Y, Son S, Shimizu N. Analysis of a force system for upper molar distalization using a trans-palatal arch and mini-implant: a finite element analysis study. Eur J Orthod 2012; 35:628-33. [DOI: 10.1093/ejo/cjs052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Reis WL, Biancardi VC, Son S, Antunes-Rodrigues J, Stern JE. Enhanced expression of heme oxygenase-1 and carbon monoxide excitatory effects in oxytocin and vasopressin neurones during water deprivation. J Neuroendocrinol 2012; 24:653-63. [PMID: 22060896 PMCID: PMC3314108 DOI: 10.1111/j.1365-2826.2011.02249.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A growing body of evidence indiates that carbon monoxide (CO) acts as a gas neurotransmitter within the central nervous system. Although CO has been shown to affect neurohypophyseal hormone release in response to osmotic stimuli, the precise sources, targets and mechanisms underlying the actions of CO within the magnocellular neurosecretory system remain largely unknown. In the present study, we combined immunohistochemistry and patch-clamp electrophysiology to study the cellular distribution of the CO-synthase enzyme heme oxygenase type 1 (HO-1), as well as the actions of CO on oxytocin (OT) and vasopressin (VP) magnocellular neurosecretory cells (MNCs), in euhydrated (EU) and 48-h water-deprived rats (48WD). Our results show the expression of HO-1 immunoreactivity both in OT and VP neurones, as well as in a small proportion of astrocytes, both in supraoptic (SON) and paraventricular (PVN) nuclei. HO-1 expression, and its colocalisation with OT and VP neurones within the SON and PVN, was significantly enhanced in 48WD rats. Inhibition of HO activity with chromium mesoporphyrin IX chloride (CrMP; 20 μm) resulted in a slight membrane hyperpolarisation in SON neurones from EU rats, without significantly affecting their firing activity. In 48WD rats, on the other hand, CrMP resulted in a more robust membrane hyperpolarisation, significantly decreasing neuronal firing discharge. Taken together, our results indicate that magnocellular SON and PVN neurones express HO-1, and that CO acts as an excitatory gas neurotransmitter in this system. Moreover, we found that the expression and actions of CO were enhanced in water-deprived rats, suggesting that the state-dependent up-regulation of the HO-1/CO signalling pathway contributes to enhance MNCs firing activity during an osmotic challenge.
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Affiliation(s)
- W L Reis
- Department of Physiology, Georgia Health Sciences University, Augusta, GA 30912, USA
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Joo D, Son S, Kim H, Lee J, You J, Lee S, Kim M, Kim S, Kim Y. Renal Replacement Therapy: Available Information Versus Demands of Patients. Transplant Proc 2012; 44:91-3. [DOI: 10.1016/j.transproceed.2011.12.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Son S, Häberle H, Aurich H, Pham DT. Simultane Phako-Analyse der Indikationen bei 58 Patienten. Klin Monbl Augenheilkd 2011. [DOI: 10.1055/s-0031-1297297] [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: 10/15/2022]
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Jang H, Son S, Song J, Choi B, Kang Y, Yoon S, Kang K. Hypofractionated Radiotherapy for the Patients with Unresectable Primary Hepatocellular Carcinoma using TomoTherapy Hi-Art: Analysis of the Efficacy and Toxicity. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Son S, Kang Y, Ryu M, Choi B, Jang H, Choi I, Shin H. The Effect of Metallic Implants for the Radiation Therapy in the Spinal Tumor Patients with Metallic Spinal Implants. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Choi B, Ryu K, Bong J, Lee J, Choy Y, Son S, Han O, Baik M. Comparison of steroid hormone concentrations and mRNA levels of steroid receptor genes in longissimus dorsi muscle and subcutaneous fat between bulls and steers and association with carcass traits in Korean cattle. Livest Sci 2010. [DOI: 10.1016/j.livsci.2010.04.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Lee K, Son S, Lee M, Ko Y. 341: Two Cases of Peritoneal Parasitic Leiomyoma Removed by Laparoscopy. J Minim Invasive Gynecol 2007. [DOI: 10.1016/j.jmig.2007.08.322] [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: 10/22/2022]
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Chang T, Maruyama C, White S, Son S, Caputo A. Dimensional accuracy analysis of implant framework castings from 2 casting systems. J Prosthet Dent 2006. [DOI: 10.1016/j.prosdent.2006.03.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Chen Y, Tsang T, Sherman A, Tso A, Korenblit P, Son S, Poon E, Ramos R, Tobias H, Rey M, Pollack H. An Epidemiologic Study of Hepatitis B Virus Infection among Asian Americans in New York City. Am J Epidemiol 2006. [DOI: 10.1093/aje/163.suppl_11.s252-a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Abstract
In a degenerate plasma, the rates of electron processes are much smaller than the classical model would predict, affecting the efficiencies of current generation by external noninductive means, such as by electromagnetic radiation or intense ion beams. For electron-based mechanisms, the current-drive efficiency is higher than the classical prediction by more than a factor of 6 in a degenerate hydrogen plasma, mainly because the electron-electron collisions do not quickly slow down fast electrons. Moreover, electrons much faster than thermal speeds are more readily excited without exciting thermal electrons. In ion-based mechanisms of current drive, the efficiency is likewise enhanced due to the degeneracy effects, since the electron stopping power on slow ion beams is significantly reduced.
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Affiliation(s)
- S Son
- Department of Astrophysical Sciences, Princeton University, Princeton, New Jersey 08540, USA
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Buchy P, Monchy D, An TTN, Srey CT, Tri DV, Son S, Glaziou P, Chien BT. [Prevalence of hepatitis A, B, C and E virus markers among patients with elevated levels of Alanine aminotransferase and Aspartate aminotransferase in Phnom Penh (Cambodia) and Nha Trang (Central Vietnam)]. Bull Soc Pathol Exot 2004; 97:165-71. [PMID: 15462195] [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: 04/30/2023]
Abstract
In order to describe the respective part of viral hepatitis in liver diseases observed in Cambodia and Vietnam, ninety consecutive patients with Aspartate aminotransferase (AST) and Alanine aminotransferase (ALT) > or = 100 Ul/l were tested for hepatitis A, B, C and E markers in Phnom Penh and Nha Trang. The markers were IgM antibodies to hepatitis A virus (anti-HAV IgM), hepatitis B surface antigen (HBsAg), antibodies to hepatitis C virus (anti-HCVAb) and IgG antibodies to hepatitis E virus (anti-HEV IgG). Recruited patients were predominantly adults and male (sex ratio 76%). Among these patients, 81% were tested positive to at least one marker in Nha Trang and 79% in Phnom Penh. In Nha Trang, HBsAg was more frequent (73%) than anti-HCV Ab (9%) while in Phnom Penh both markers were closely similar (HBsAg: 41%, anti-HCV Ab: 39%). In both population samples, HBsAg was more prevalent among young people whereas anti-HCV Ab were only detected in adults. No case of acute HAV infection was diagnosed in Nha Trang while anti-HAV IgM were detected in 20% of Cambodian patients. Anti-HEV IgG were infrequent (2% in Nha Trang, 5.5% in Phnom Penh). Only one case was notified, a male Vietnamese patient probably suffering from acute hepatitis E. More studies would be useful to improve the control measures against viral hepatitis in the public health programs.
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Affiliation(s)
- P Buchy
- Institut Pasteur de Nha Trang, Vietnam.
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Son S, Kanamaru F, Koizumi M. Synthesis and characterization of the nickel(II)-rubeanic acid complex on interlamellar surfaces of molybdenum trioxide. Inorg Chem 2002. [DOI: 10.1021/ic50192a041] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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