1.Genetic identification of internal transcribed spacers sequence in rDNA of Artemisis iwayomogi Kitam. and other two Artemisia species
Sungyong KIM ; Jianwei CHEN ; Zhongquan LIU ; Yongzhen WANG
Journal of Integrative Medicine 2004;2(1):58-61
OBJECTIVE: To make an useful identification method for the molecule of DNA on 3 herbs of Artemisia genus and compare the differences of the genes of Korean and Chinese species of Artemisia. METHODS: Sequence of 3 herbs (Artemisia sacrorum Ledeb., Artemisia iwayomogi Kitam. and Artemisia capillaris Thunb.) was determined by PCR sequence system. DNA was extracted from rDNA/ITS (internal transcribed spacers) and 5.8 s. The analysis was based on the amplification through DNA sequence system. RESULTS: There were profound differences between the Korean Artemisia and Artemisia sacrorum L. These 2 herbs had a difference in the PCR amplifications of the agarose gel electrophoresis. There was a slight difference in the analysis of the DNA sequence system, and the substitution percentage for ITS gene fragments sequence was 3.96%. CONCLUSION: Analytic identification method on sequence system of ITS in rDNA is effective for these 3 herbs.
2.On Textual and Contextual Position of The Ophthalmological Treatise of Bodhisattva Nagarjuna.
Korean Journal of Medical History 2013;22(1):217-274
Medical knowledge in India began to be introduced to China in earliest from the Later Han Dynasty period to the times of Wei-Qin and South & North Dynasties. This is proved by many Buddhist medical books appeared in those days. Of the contents of Indian medicine, the theory of four major elements affected Chinese medicine more than did the theory of body fluids. Based on the theory of four major elements that was began to be introduced in Fu shuo fu yi jing, an attempt to establish a new medical system was made in Zhou hou bai yifang written by Tao Hong-jing and Sun Si-miao who tried to develop etiology further but could not achieve any great outcomes. Unlike the foregoing situation, Indian medicine aroused a large echo in China in the field of ophthalmology with ophthalmological knowledge mentioned in Susrutasamhita and 'Jin-zhen-shu'(cataract couching) introduced as a surgical treatment of cataract. The Susrutasamhita which is one of the three major texts of Indian medicine contains additional information on surgical operations not introduced in the Carakasamhita. The technique of cataract surgery was particularly popular in the Tang and Song dynasty periods in China under the name Long shu pu sa yan lun(The Ophthalmological Treatise of Bodhisattva Nagarjuna) or Long shu lun and was even designated as a subject to educate medical officers. While the original text of Long shu pu sa yan lun was not handed down, the first testimony that show the trace of the introduction of this text into China was the Tian zhu jing lun yan mentioned in Wai tai mi yao(Arcane Essential from the Imperial Library) written by Wang Tao. Long shang dao ren who was mentioned as the compiler of the book is assumed to be Long shu. Although Tian zhu jing lun yan introduced anatomical knowledge about the eyeball that could have not been in the traditional Chinese medicine, this book has only limited quantity of information in this regard. Thereafter, Tai ping sheng hui fang(Holy Prescriptions for Universal Relief) compiled by a national agency at the beginning of the Song Dynasty period introduced Long shu pu sa yan lun without clear indication of the reference. Contemporary with this book, many ophthalmological books such as Mi chuan yan ke long mu lun(Longmu's Ophthalmology Secretly Handed Down) were published. As Chinese culture was spreading out into surrounding countries, medical knowledge was also introduced to Korean peninsula and Japan. The ophthalmological knowledge contained in Long shu pu sa yan lun was also reflected and some parts of it were introduced in I shin bo in Japan. Based on the policy decision of King Sejong, the fourth king of Joseon Dynasty, large scaled promoting projects of medical knowledge was established. It is notable that the Ui bang ryu chwi compiled as a result of the synthesis of the medical treatises available at that time initiated by King Sejong contained a considerable part of Long shu pu sa yan lun in reedited form that had already passed into oblivion in China. The intellectuals in Joseon Dynasty who participated in the compilation of Ui bang ryu chwi not only indicated that Long shu pu sa yan lun was a medical text published in the times of Wei-Qin and South & North Dynasties in China but also clearly indicated the textual reference and left the original text for later generation without modifying the contents. According to the Ui bang ryu chwi, the Long shu pu sa yan lun indicated that the core causes of eye diseases were heat, winds, and three body fluids(tridosa) and contained the analyses of symptoms, related treatments, and several analyses of wrong treatments. In addition, Long shu pu sa yan lun explained diverse eye diseases through more than 30 medical treatments. In particular, this book accurately described golden needle acupuncture for treatment of a Nei-zhang understood to be cataract. Therefore, this book is a significant textual record in the history of ophthalmological medicine in East Asia. Along with the golden needle acupuncture which is a method of removing the crystalline lens in which white turbidity occurred by stabbing the eyeball with a needle, traces of Indian medicine that had been already lost in China were clearly indicated in Long shu pu sa yan lun kept in the Ui bang ryu chwi. In particular, the book indicates that the eyes were directly correlated with the brain and that to treat the internal disorder, treating the brain that lost stability due to heat and bodily wind was indispensable; these are the traces of Indian influence. This textual source demonstrates a case of knowledge exchange in field of medicine with concrete cases of the encounter and clash between the standpoints of understanding human body.
Acupuncture
;
Asian Continental Ancestry Group
;
Brain
;
Cataract
;
China
;
Collodion
;
Dental Cavity Lining
;
European Continental Ancestry Group
;
Eye
;
Eye Diseases
;
Hand
;
Hot Temperature
;
Human Body
;
Humans
;
India
;
Insecticides
;
Japan
;
Lens, Crystalline
;
Medicine, Chinese Traditional
;
Needles
;
Nitriles
;
Ophthalmology
;
Prescriptions
;
Pyrethrins
;
Singing
;
Solar System
;
Troleandomycin
;
Wind
3.Priority survey between indicators and analytic hierarchy process analysis for green chemistry technology assessment.
Sungjune KIM ; Seokpyo HONG ; Kilsoo AHN ; Sungyong GONG
Environmental Health and Toxicology 2015;30(Suppl):s2015003-
OBJECTIVES: This study presents the indicators and proxy variables for the quantitative assessment of green chemistry technologies and evaluates the relative importance of each assessment element by consulting experts from the fields of ecology, chemistry, safety, and public health. METHODS: The results collected were subjected to an analytic hierarchy process to obtain the weights of the indicators and the proxy variables. RESULTS: These weights may prove useful in avoiding having to resort to qualitative means in absence of weights between indicators when integrating the results of quantitative assessment by indicator. CONCLUSIONS: This study points to the limitations of current quantitative assessment techniques for green chemistry technologies and seeks to present the future direction for quantitative assessment of green chemistry technologies.
Chemistry
;
Ecology
;
Green Chemistry Technology*
;
Health Resorts
;
Humans
;
Proxy
;
Public Health
;
Weights and Measures
4.Priority survey between indicators and analytic hierarchy process analysis for green chemistry technology assessment.
Sungjune KIM ; Seokpyo HONG ; Kilsoo AHN ; Sungyong GONG
Environmental Health and Toxicology 2015;30(Suppl):s2015003-
OBJECTIVES: This study presents the indicators and proxy variables for the quantitative assessment of green chemistry technologies and evaluates the relative importance of each assessment element by consulting experts from the fields of ecology, chemistry, safety, and public health. METHODS: The results collected were subjected to an analytic hierarchy process to obtain the weights of the indicators and the proxy variables. RESULTS: These weights may prove useful in avoiding having to resort to qualitative means in absence of weights between indicators when integrating the results of quantitative assessment by indicator. CONCLUSIONS: This study points to the limitations of current quantitative assessment techniques for green chemistry technologies and seeks to present the future direction for quantitative assessment of green chemistry technologies.
Chemistry
;
Ecology
;
Green Chemistry Technology*
;
Health Resorts
;
Humans
;
Proxy
;
Public Health
;
Weights and Measures
5.Research on the development of green chemistry technology assessment techniques: a material reutilization case.
Seokpyo HONG ; Kilsoo AHN ; Sungjune KIM ; Sungyong GONG
Environmental Health and Toxicology 2015;30(Suppl):s2015002-
OBJECTIVES: This study presents a methodology that enables a quantitative assessment of green chemistry technologies. METHODS: The study carries out a quantitative evaluation of a particular case of material reutilization by calculating the level of "greenness" i.e., the level of compliance with the principles of green chemistry that was achieved by implementing a green chemistry technology. RESULTS: The results indicate that the greenness level was enhanced by 42% compared to the pre-improvement level, thus demonstrating the economic feasibility of green chemistry. CONCLUSIONS: The assessment technique established in this study will serve as a useful reference for setting the direction of industry-level and government-level technological R&D and for evaluating newly developed technologies, which can greatly contribute toward gaining a competitive advantage in the global market.
Chemistry
;
Compliance
;
Evaluation Studies as Topic
;
Green Chemistry Technology*
6.Research on the development of green chemistry technology assessment techniques: a material reutilization case.
Seokpyo HONG ; Kilsoo AHN ; Sungjune KIM ; Sungyong GONG
Environmental Health and Toxicology 2015;30(Suppl):s2015002-
OBJECTIVES: This study presents a methodology that enables a quantitative assessment of green chemistry technologies. METHODS: The study carries out a quantitative evaluation of a particular case of material reutilization by calculating the level of "greenness" i.e., the level of compliance with the principles of green chemistry that was achieved by implementing a green chemistry technology. RESULTS: The results indicate that the greenness level was enhanced by 42% compared to the pre-improvement level, thus demonstrating the economic feasibility of green chemistry. CONCLUSIONS: The assessment technique established in this study will serve as a useful reference for setting the direction of industry-level and government-level technological R&D and for evaluating newly developed technologies, which can greatly contribute toward gaining a competitive advantage in the global market.
Chemistry
;
Compliance
;
Evaluation Studies as Topic
;
Green Chemistry Technology*
7.Application of Low-Cost, Easy-to-Use, Portable Biosensor Systems for Diagnosing Bladder Dysfunctions
Nosang V MYUNG ; Sungyong JUNG ; Jayoung KIM
International Neurourology Journal 2019;23(1):86-87
No abstract available.
Biosensing Techniques
;
Urinary Bladder
8.Pioglitazone Alters the Proteomes of Normal Bladder Epithelial Cells but Shows No Tumorigenic Effects
Muhammad SHAHID ; Minhyung KIM ; Austin YEON ; Peng JIN ; Woong-Ki KIM ; Sungyong YOU ; Jayoung KIM
International Neurourology Journal 2020;24(1):29-40
Purpose:
Pioglitazone, an antihyperglycemic drug, is widely used in diabetes mellitus patients with insulin resistance. Although pioglitazone is known to have a potential link to bladder cancer (BC), there have been contradictory results. This present study is designed to understand the regulatory mechanisms that drive the effects of pioglitazone on the bladder epithelial cells.
Methods:
Labeled liquid chromatography-tandem mass spectrometry-based proteomics profiling characterized the global proteomes of normal human bladder epithelial cells treated with or without pioglitazone.
Results:
This approach detected approximately 5,769 proteins in total. Of those 5,769 proteins, 124 were identified as being differentially expressed due to pioglitazone treatment. Further analysis identified 95 upregulated and 29 downregulated proteins (absolute log2 fold change >0.58 and P-value<0.05). The following functional gene enrichment analysis suggested that pioglitazone may be altering a few select biological processes, such as gene/chromatin silencing, by downregulating BMI1 (B lymphoma Mo-MLV insertion region 1 homolog), a polycomb complex protein. Further cell-based assays showed that cell adhesion molecules, epithelial-mesenchymal transition markers, and major signaling pathways were significantly downregulated by pioglitazone treatment.
Conclusions
These experimental results revealed the proteomic and biological alterations that occur in normal bladder cells in response to pioglitazone. These findings provided a landscape how bladder proteome is influenced by pioglitazone, which suggests the potential adverse effects of diabetes drugs and their links to bladder dysfunctions.
9.beta1-integrin-dependent migration of microglia in response to neuron-released alpha-synuclein.
Changyoun KIM ; Eun Deok CHO ; Hyung Koo KIM ; Sungyong YOU ; He Jin LEE ; Daehee HWANG ; Seung Jae LEE
Experimental & Molecular Medicine 2014;46(4):e91-
Chronic neuroinflammation is an integral pathological feature of major neurodegenerative diseases. The recruitment of microglia to affected brain regions and the activation of these cells are the major events leading to disease-associated neuroinflammation. In a previous study, we showed that neuron-released alpha-synuclein can activate microglia through activating the Toll-like receptor 2 (TLR2) pathway, resulting in proinflammatory responses. However, it is not clear whether other signaling pathways are involved in the migration and activation of microglia in response to neuron-released alpha-synuclein. In the current study, we demonstrated that TLR2 activation is not sufficient for all of the changes manifested by microglia in response to neuron-released alpha-synuclein. Specifically, the migration of and morphological changes in microglia, triggered by neuron-released alpha-synuclein, did not require the activation of TLR2, whereas increased proliferation and production of cytokines were strictly under the control of TLR2. Construction of a hypothetical signaling network using computational tools and experimental validation with various peptide inhibitors showed that beta1-integrin was necessary for both the morphological changes and the migration. However, neither proliferation nor cytokine production by microglia was dependent on the activation of beta1-integrin. These results suggest that beta1-integrin signaling is specifically responsible for the recruitment of microglia to the disease-affected brain regions, where neurons most likely release relatively high levels of alpha-synuclein.
Animals
;
Antigens, CD29/genetics/*metabolism
;
Cell Line, Tumor
;
*Cell Movement
;
Cells, Cultured
;
Culture Media, Conditioned/*pharmacology
;
Gene Regulatory Networks
;
Humans
;
Mice
;
Mice, Inbred C57BL
;
Microglia/drug effects/metabolism/*physiology
;
Neurons/*metabolism
;
Rats
;
Rats, Sprague-Dawley
;
Signal Transduction
;
Toll-Like Receptor 2/metabolism
;
alpha-Synuclein/*pharmacology
10.A Monte Carlo Simulation Study of a Therapeutic Proton Beam Delivery System Using the Geant4 Code.
Jungwook SHIN ; Hyunha SHIM ; Jungwon KWAK ; Dongwook KIM ; Sungyong PARK ; Kwan Ho CHO ; Se Byeong LEE
Korean Journal of Medical Physics 2007;18(4):226-232
We studied a Monte Carlo simulation of the proton beam delivery system at the National Cancer Center (NCC) using the Geant4 Monte Carlo toolkit and tested its feasibility as a dose verification framework. The Monte Carlo technique for dose calculation methodology has been recognized as the most accurate way for understanding the dose distribution in given materials. In order to take advantage of this methodology for application to externalbeam radiotherapy, a precise modeling of the nozzle elements along with the beam delivery path and correct initial beam characteristics are mandatory. Among three different treatment modes, double/single.scattering, uniform scanning and pencil beam scanning, we have modeled and simulated the double.scattering mode for the nozzle elements, including all components and varying the time and space with the Geant4.8.2 Monte Carlo code. We have obtained simulation data that showed an excellent correlation to the measured dose distributions at a specific treatment depth. We successfully set up the Monte Carlo simulation platform for the NCC proton therapy facility. It can be adapted to the precise dosimetry for therapeutic proton beam use at the NCC. Additional Monte Carlo work for the full proton beam energy range can be performed.
Proton Therapy
;
Protons*
;
Radiotherapy