• Title/Summary/Keyword: Hwang Dosun

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Hwang Doyeon's Medical Achievements and His Other Name, Hwang Dosun (황도연(黃度淵)의 의학과 그의 또 다른 이름 황도순(黃道淳))

  • Oh, Chaekun
    • Journal of Korean Medical classics
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    • v.30 no.3
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    • pp.11-40
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    • 2017
  • Purpose : The purpose of this article is to make a clarification that Hwang Doyeon(黃度淵) was a official doctor(醫官) who even served as royal doctor(御醫), rather than merely a general doctor who worked in the private sector. The article also attempts to give a new perspective on the medical history about the late period of Joseon(朝鮮) Dynasty. Methods : In researching Hwang Doyeon's master work, the Gains and Losses of Medical Orthodoxy(醫宗損益), the article looks at his clinical medicines. Analyzing the historical records, the article makes an assumption that Hwang Doyeon and Hwang Dosoon(黃道淳), who was selected as an officer to discuss medicine with other medical officers(議藥同參), are the identical person. On this assumption, the article tries to reinterpret the medicine during the later Joseon Dynasty period. Result & Conclusion : The records, including the royal medical treatment records of the Gains and Losses of Medical Orthodoxy, the Daily Records of Royal Secretariat(承政院日記), the genealogy of Changwon Hwangs(昌原黃氏世譜), academic paper and government documents released posthumously, demonstrated that Hwang Doyeon and Hwang Dosoon are the same person. If so, we can have new historical interpretation about medical history of late Joseon Dynasty. First, during the late of Joseon Dynasty, there was an official and active medical knowledge interaction between government and private sector. Second, the Joseon's medicine has been established its own medical system based on the Treasured Mirror of Eastern Medicine(東醫寶鑑), trying to cope with cholera and other contemporary epidemics without relying on Chinese warm disease(溫病) medicine. Third, the Compilation of Formulas and Medicinals(方藥合編), is regarded not only as a must-read medical reading for medical doctors, also playing an important role on popularization of Korean medical knowledge.

Double Mutations in eIF4E and eIFiso4E Confer Recessive Resistance to Chilli Veinal Mottle Virus in Pepper

  • Hwang, JeeNa;Li, Jinjie;Liu, Wing-Yee;An, Song-Ji;Cho, Hwajin;Her, Nam Han;Yeam, Inhwa;Kim, Dosun;Kang, Byoung-Cheorl
    • Molecules and Cells
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    • v.27 no.3
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    • pp.329-336
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    • 2009
  • To evaluate the involvement of translation initiation factors eIF4E and eIFiso4E in Chilli veinal mottle virus (ChiVMV) infection in pepper, we conducted a genetic analysis using a segregating population derived from a cross between Capsicum annuum 'Dempsey' containing an elF4E mutation ($pvr1^2$) and C. annuum 'Perennial' containing an elFiso4E mutation (pvr6). C. annuum 'Dempsey' was susceptible and C. annuum 'Perennial' was resistant to ChiVMV. All $F_1$ plants showed resistance, and $F_2$ individuals segregated in a resistant-susceptible ratio of 166:21, indicating that many resistance loci were involved. Seventy-five $F_2$ and 329 $F_3$ plants of 17 families were genotyped with $pvr1^2$ and pvr6 allele-specific markers, and the genotype data were compared with observed resistance to viral infection. All plants containing homozygous genotypes of both $pvr1^2$ and pvr6 were resistant to ChiVMV, demonstrating that simultaneous mutations in elF4E and eIFiso4E confer resistance to ChiVMV in pepper. Genotype analysis of $F_2$ plants revealed that all plants containing homozygous genotypes of both $pvr1^2$ and pvr6 showed resistance to ChiVMV. In protein-protein interaction experiments, ChiVMV viral genome-linked protein (VPg) interacted with both eIF4E and eIFiso4E. Silencing of elF4E and eIFiso4E in the VIGS experiment showed reduction in ChiVMV accumulation. These results demonstrated that ChiVMV can use both eIF4E and eIFiso4E for replication, making simultaneous mutations in eIF4E and eIFiso4E necessary to prevent ChiVMV infection in pepper.