• Title/Summary/Keyword: clinical research

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Pelvic Fistulas Complicating Pelvic Surgery or Diseases: Spectrum of Imaging Findings

  • Sung Gyu Moon;Seung Hyup Kim;Hak Jong Lee;Min Hoan Moon;Jae Sung Myung
    • Korean Journal of Radiology
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    • 제2권2호
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    • pp.97-104
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    • 2001
  • Pelvic fistulas may result from obstetric complications, inflammatory bowel disease, pelvic malignancy, pelvic radiation therapy, pelvic surgery, or other traumatic causes, and their symptoms may be distressing. In our experience, various types of pelvic fistulas are identified after pelvic disease or pelvic surgery. Because of its close proximity, the majority of such fistulas occur in the pelvic cavity and include the vesicovaginal, vesicouterine, vesicoenteric, ureterovaginal, ureteroenteric and enterovaginal type. The purpose of this article is to illustrate the spectrum of imaging features of pelvic fistulas.

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한약 및 천연물의 항암 임상연구 방법론에 대한 고찰 (Review of Clinical Cancer Research Methodology of Botanical Agents)

  • 오혜경;이지영;류한성;윤성우
    • 대한암한의학회지
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    • 제20권1호
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    • pp.11-21
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    • 2015
  • Objectives : The cancer incidence and cancer burden is increasing. In addition, the use of botanical agents in cancer care is increasing. This article aims to review a research strategy for botanical agents. Methods : The clinical studies of anticancer botanical agents and the papers about clinical research methodology of botanical agents were reviewed. Results : In phase I study, safety confirmation, optimal dose determination and drug interaction study are important. Most botanical agents have low toxicity and some have non-monotone dose response. Therefore, dose-response curve must be evaluated separately from the dose-toxicity curve to determine optimal dose. Although anticancer botanical agents can't shrink tumor size rapidly, they do extend survival. So, in phase II study, response should be evaluated by the survival. Conclusions : Clinical research of botanical agents in cancer is different from traditional methods and strategies. Considering the characteristics of botanical agents and experimental mechanism is necessary in conducting botanical based clinical trials.

원형탈모증의 국내 한의학 임상 연구동향 (Review of Domestic Clinical Research Trends of Korean Medicine on Alopecia areata)

  • 천혜선
    • 동의생리병리학회지
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    • 제36권6호
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    • pp.221-228
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    • 2022
  • The purpose of this study is to report the research trends of Korean medicine treatment for alopecia areata. We investigated the studies on Korean medicine treatments for alopecia areata via searching 4 web databases of Korea. 13 papers were selected, and we classified them according to publication year, published journals, the types of study, research subject, the methods of treatment, confirmation of recurrence, methods of evaluation, and institutional review board(IRB). We analyzed a total of 13 clinical studies of Korean medicine on alopecia areata based on various criteria and reviewed the research trends. Based on this, we suggested points to be improved and supplemented when conducting clinical research on alopecia areata in the future. Clinical studies on alopecia areata started to be published in 2001, and acupuncture, pharmacopuncture, herbal medicines, etc. were used as treatment methods for alopecia areata. Most of the clinical studies on alopecia areata were case studies, so it is thought that various types of clinical studies are needed. In addition, it is necessary to confirm the recurrence of alopecia areata and to improve the awareness of research ethics.

The Association between the T102C Polymorphism of the HTR2A Serotonin Receptor Gene and HDL Cholesterol Level in Koreans

  • Choi, Jin-Ho;Zhang, Shu-Ying;Park, Kyung-Woo;Cho, Young-Seok;Oh, Byung-Hee;Lee, Myoung-Mook;Park, Young-Bae;Kim, Hyo-Soo
    • BMB Reports
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    • 제38권2호
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    • pp.238-242
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    • 2005
  • 5-HT2A is one of major serotonin receptor that is involved in the action of serotonin-targeting drugs. Previous clinical studies have shown an unexpected association between lower cholesterol level and psychiatric diseases, in which T102C polymorphism of HTR2A, gene of 5-HT2A serotonin receptor, might be involved. Therefore, we hypothesized a potential association between lower cholesterol level and T102C polymorphism. The effect of the T102C polymorphism on the serum lipid profiles of 646 subjects without specific psychiatric disease was investigated. Genotype was determined by polymerase chain reaction and restriction fragment length polymorphism analysis. There were significantly lower levels of total cholesterol ($193.6{\pm}35.0$ versus $202.1{\pm}45.5\;mg/dl$, p = 0.016) and HDL-cholesterol ($42.7{\pm}11.6$ versus $46.3{\pm}12.7\;mg/dl$, p = 0.004) in CC genotype than non-CC genotypes. Moreover, multivariate analysis showed that the CC genotype is a strong predictor of a lower HDL-cholesterol level (p < 0.001). In conclusion, this study shows that the CC genotype of the HTR2A gene is related to lower HDL-cholesterol level in Koreans. This is the first demonstration showing the potential genetic relationship between the serotonin receptor gene polymorphism and the HDL-cholesterol level.

경항통에 대한 매선 임상연구의 중국 현황 분석 (Research Trends on the Thread Embedding Therapy of Neck pain in Traditional Chinese Medicine)

  • 전푸르메;김수란;류연;박지은;정소영;한창현
    • 동의생리병리학회지
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    • 제31권5호
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    • pp.284-293
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    • 2017
  • Thread embedding therapy is used increasingly for various disease including neck pain. However, the evidence of thread embedding therapy on neck pain and the assessment of their methodology are still limited. This study aimed to investigate the clinical research methodology using thread embedding therapy on neck pain. Thread embedding therapy is used increasingly for various disease including neck pain. However, the evidence of thread embedding therapy on neck pain and the assessment of their methodology are still limited. This study aimed to investigate the clinical research methodology using thread embedding therapy on neck pain. Total 31 studies were included in analysis. Thread embedding therapy usually was used once a week(32.3%), once per 10days(29.0%), once per two weeks (25.8%). The most common concurrent treatment used with thread embedding therapy was Chinese medicine. Among acupuncture points, EX-B2 (61.3%) was most commonly used, followed by GV14(45.2%), GB20(29.0%), GB21(22.6%). For control group, acupuncture were most commonly used(58.1%). All studies reported that the effect of thread embedding therapy was more effective compared to control group. and 11 studies reported side effects. Only 13 studies(41.9%) reported the appropriate randomization method, and the mean Jadad score of included studies was 1.52. Previous clinical trials included in this study showed the effect of thread embedding therapy for neck pain. However, the quality of the studies was not high. Further rigorous clinical trials are need to assess the effect of thread embedding therapy.

중환자실의 현장실무 강화교육 프로그램이 간호학생의 임상수행능력과 임상실습교육 만족도에 미치는 효과 (Effects of Clinical Practicum Reinforcement Program on Nursing Student's Clinical Competency and Satisfaction in the ICU)

  • 이은숙;김정숙;김아영
    • 임상간호연구
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    • 제17권2호
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    • pp.262-274
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    • 2011
  • Purpose: To identify the effects of clinical practicum reinforcement program on nursing student's clinical competency and satisfaction in the ICU. Methods: The study utilized a quasi-experimental pretest-posttest research design. The participant was 76 senior nursing students, who were engaged in two week-long clinical practicum in ICU at the C university hospital in a G city, Korea. The clinical practicum reinforcement program was applied to the experimental group (n=39), while the control group (n=37) was involved in the conventional practicum program. The collected data were analyzed using descriptive analysis, $x^2$/Fisher's exact test, and t-test, ANCOVA with SPSS/WIN 18.0 program. Results: After 2 weeks' clinical practicum, the experimental group showed a statistically significant increase in the clinical performance abilities by self evaluation, when compared to the control group. Clinical instructor's evaluation on the student's clinical performance revealed that the experimental group showed higher level in nursing activity than that of the control group (p<.001). However, there was no significant difference between the two groups in terms of the satisfaction on the clinical practicum program except the learning guidance and the evaluation. Conclusion: The clinical practicum reinforcement program is an effective one for improving the student's clinical competency.

Metabolomic analysis of healthy human urine following administration of glimepiride using a liquid chromatography-tandem mass spectrometry

  • Do, Eun Young;Gwon, Mi-Ri;Kim, Bo Kyung;Ohk, Boram;Lee, Hae Won;Kang, Woo Youl;Seong, Sook Jin;Kim, Hyun-Ju;Yoon, Young-Ran
    • Translational and Clinical Pharmacology
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    • 제25권2호
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    • pp.67-73
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    • 2017
  • Glimepiride, a third generation sulfonylurea, is an antihyperglycemic agent widely used to treat type 2 diabetes mellitus. In this study, an untargeted urinary metabolomic analysis was performed to identify endogenous metabolites affected by glimepiride administration. Urine samples of twelve healthy male volunteers were collected before and after administration of 2 mg glimepiride. These samples were analyzed by liquid chromatography-tandem mass spectrometry (LC-MS/MS), and then subjected to multivariate data analysis including principal component analysis and orthogonal partial least squares discriminant analysis. Through this metabolomic profiling, we identified several endogenous metabolites such as adenosine 3', 5'-cyclic monophosphate (cAMP), quercetin, tyramine, and urocanic acid, which exhibit significant metabolomic changes between pre- and posturine samples. Among these, cAMP, which is known to be related to insulin secretion, was the most significantly altered metabolite following glimepiride administration. In addition, the pathway analysis showed that purine, tyrosine, and histidine metabolism was affected by pharmacological responses to glimepiride. Together, the results suggest that the pharmacometabolomic approach, based on LC-MS/MS, is useful in understanding the alterations in biochemical pathways associated with glimepiride action.

텍스트 네크워크 분석을 이용한 임상간호연구 게재논문의 연구동향 분석: 2000년부터 2017년까지 (Research Trends of Articles Published in the Journal of Korean Clinical Nursing Research from 2000 to 2017: Text Network Analysis of Keywords)

  • 김연희;문성미;권인각;김광성;정금희;신은숙;오향순;김수현
    • 임상간호연구
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    • 제25권1호
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    • pp.80-90
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    • 2019
  • Purpose: The aim of this study was to identify the research trends of articles published in the Journal of Korean Clinical Nursing Research from 2000 to 2017 by a text network analysis using keywords. Methods: This study analyzed 600 articles. The R program was used for text mining that extracted frequency, centrality rank, and keyword network. Results: From 2000 to 2009, keywords with high-frequency were 'nurse', 'pain', 'anxiety', 'knowledge', 'attitude', and so on. 'Pain', 'nurse', and 'knowledge' showed a high centrality. 'Fatigue' showed no high frequency but a high centrality. Keywords such as 'nurse', 'knowledge', and 'pain' also showed high frequency and centrality between 2010 and 2017. 'Hemodialysis' and 'intensive care unit' were added to keywords with high frequency and centrality during the period. Conclusion: The frequency and centrality of keywords such as 'nurse', 'pain', 'knowledge', 'hemodialysis', and 'intensive care unit' reflect the research trends in clinical nursing between 2000 and 2017. Further studies need to expand the keyword networks by connecting the main keywords.