• Title/Summary/Keyword: Clinical investigation

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Forensic Evaluation of Prostate-Specific-Antigen (PSA) Rapid Test Kit for Identification of Human Semen (전립선특이항원검사 Kit에 의한 정액의 신속 검출법)

  • Lim, Chae-Won;Lee, Jong-Hoon;Kim, Hyung-Lak
    • Korean Journal of Clinical Laboratory Science
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    • v.41 no.2
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    • pp.76-82
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    • 2009
  • It would be one of the most important tests that determination of semen in crime scene as a matter of significant evidences. Recently, it has been developed for the identification of semen in forensic specimens which was used simply, easily and reproductively. In this study, Prostate-Specific-Antigen (PSA) Rapid Test kit was evaluated for the forensic identification of semen and compared with one step semen inspection forensic rapid test kit. The sensitivity and specificity of the rapid PSA kit were examined in addition to the stability of PSA. The positive band of rapid PSA kit shown even with 1,000,000-fold diluted semen, which was at least 100 timed higher than qualitative one step semen inspection forensic rapid test kit. PSA was detected in urine from normal male adult, however, it was not detected in urine from young boys and female body fluids. It was shown that PSA was very stable to resist boiling for 20 minutes and the effect of bacteria. In crime scene investigation, rapid PSA kit is expected to help to identify semen easily in the evidences.

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A Study of Clinical Application of the Connective Tissue Massage. (결합조직마사지의 임상적 적용연구)

  • Lim Weon-Sik;Kim Jae-Yoon;Jung Yeon-Woo
    • The Journal of Korean Physical Therapy
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    • v.14 no.3
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    • pp.345-354
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    • 2002
  • A Study of Clinical Application of the Connective Tissue Massage General massage is termed kneading and rubbing. It will bring the effect of blood volume and cardiovascular reaction. Connective tissue massage is a diagnostic and treatment method. But the general massage has not diagnostic aspect. Connective tissue massage techniques are stimulating and stretching the LCT, mast cell, collagenous fiber, fascia, skin, muscle and nerve tissue. Diagnostic aspects of connective tissue massage are visible investigation, manual investigation, and stroking on the reflex zone. CTM do stroking with 3, 4th finger tips on the whole body for the treatment.

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Resveratrol: Twenty Years of Growth, Development and Controversy

  • Pezzuto, John M.
    • Biomolecules & Therapeutics
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    • v.27 no.1
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    • pp.1-14
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    • 2019
  • Resveratrol was first isolated in 1939 by Takaoka from Veratrum grandiflorum O. Loes. Following this discovery, sporadic descriptive reports appeared in the literature. However, spurred by our seminal paper published nearly 60 years later, resveratrol became a household word and the subject of extensive investigation. Now, in addition to appearing in over 20,000 research papers, resveratrol has inspired monographs, conferences, symposia, patents, chemical derivatives, etc. In addition, dietary supplements are marketed under various tradenames. Once resveratrol was brought to the limelight, early research tended to focus on pharmacological activities related to the cardiovascular system, inflammation, and cancer but, over the years, the horizon greatly expanded. Around 130 human clinical trials have been (or are being) conducted with varying results. This may be due to factors such as disparate doses (ca. 5 to 5,000 mg/day) and variable experimental settings. Further, molecular targets are numerous and a dominant mechanism is elusive or nonexistent. In this context, the compound is overtly promiscuous. Nonetheless, since the safety profile is pristine, and use as a dietary supplement is prevalent, these features are not viewed as detrimental. Given the ongoing history of resveratrol, it is reasonable to advocate for additional development and further clinical investigation. Topical preparations seem especially promising, as do conditions that can respond to anti-inflammatory action and/or direct exposure, such as colon cancer prevention. Although the ultimate fate of resveratrol remains an open question, thus far, the compound has inspired innovative scientific concepts and enhanced public awareness of preventative health care.

Seroepidemiological Survey of Zoonotic Diseases in Small Mammals with PCR Detection of Orientia tsutsugamushi in Chiggers, Gwangju, Korea

  • Park, Jung Wook;Chung, Jae Keun;Kim, Sun Hee;Cho, Sun Ju;Ha, Yi Deun;Jung, So Hyang;Park, Hye Jung;Song, Hyun Jae;Lee, Jung Yoon;Kim, Dong Min;Pyus, Jah;Ha, Dong Ryong;Kim, Eun Sun;Lee, Jae Il
    • Parasites, Hosts and Diseases
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    • v.54 no.3
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    • pp.307-313
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    • 2016
  • Serosurveillance for zoonotic diseases in small mammals and detection of chiggers, the vector of Orientia tsutsugamushi, were conducted from September 2014 to August 2015 in Gwangju Metropolitan Area. Apodemus agrarius was the most commonly collected small mammals (158; 91.8%), followed by Myodes regulus (8; 4.6%), and Crocidura lasiura (6; 3.5%). The highest seroprevalence of small mammals for O. tsutsugamushi (41; 26.3%) was followed by hantaviruses (24; 15.4%), Rickettsia spp. (22; 14.1%), and Leptospira (2; 1.3%). A total of 3,194 chiggers were collected from small mammals, and 1,236 of 3,194 chiggers were identified with 7 species of 3 genera: Leptotrombidium scutellare was the most commonly collected species (585; 47.3%), followed by L. orientale (422; 34.1%), Euchoengastia koreaensis (99; 8.0%), L. palpale (58; 4.7%), L. pallidum (36; 2.9%), Neotrombicula gardellai (28; 2.3%), and L. zetum (8; 0.6%). L. scutellare was the predominant species. Three of 1,236 chigger mites were positive for O. tsutsugamushi by PCR. As a result of phylogenetic analysis, the O. tsutsugamushi strain of chigger mites had sequence homology of 90.1-98.2% with Boryong. This study provides baseline data on the distribution of zoonotic diseases and potential vectors for the development of prevention strategies of vector borne diseases in Gwangju metropolitan area.

Clinical Implementation of Deep Learning in Thoracic Radiology: Potential Applications and Challenges

  • Eui Jin Hwang;Chang Min Park
    • Korean Journal of Radiology
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    • v.21 no.5
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    • pp.511-525
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    • 2020
  • Chest X-ray radiography and computed tomography, the two mainstay modalities in thoracic radiology, are under active investigation with deep learning technology, which has shown promising performance in various tasks, including detection, classification, segmentation, and image synthesis, outperforming conventional methods and suggesting its potential for clinical implementation. However, the implementation of deep learning in daily clinical practice is in its infancy and facing several challenges, such as its limited ability to explain the output results, uncertain benefits regarding patient outcomes, and incomplete integration in daily workflow. In this review article, we will introduce the potential clinical applications of deep learning technology in thoracic radiology and discuss several challenges for its implementation in daily clinical practice.

Epidemiological investigation of equine hindlimb ataxia with Setaria digitata in South Korea

  • Hwang, Hyeshin;Ro, Younghye;Lee, Hyunkyoung;Kim, Jihyeon;Lee, Kyunghyun;Choi, Eun-Jin;Bae, You-Chan;So, ByungJae;Kwon, Dohoon;Kim, Ho;Lee, Inhyung
    • Journal of Veterinary Science
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    • v.23 no.5
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    • pp.75.1-75.7
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    • 2022
  • Background: Since 2013, the number of requests for diagnosis for horses based on neurological symptoms has increased rapidly in South Korea. The affected horses have commonly exhibited symptoms of acute seasonal hindlimb ataxia. A previous study from 2015-2016 identified Setaria digitata as the causative agent. Objectives: This study is an epidemiological investigation to find out risk factors related to the rapid increase in hindlimb ataxia of horses due to aberrant parasites in South Korea. Methods: An epidemiological investigation was conducted on 155 cohabiting horses in 41 horse ranches where the disease occurred. The surrounding environment was investigated at the disease-causing horse ranches (n = 41) and 20, randomly selected, non-infected ranches. Results: Hindlimb ataxia was confirmed in nine cohabiting horses; this was presumed to be caused by ectopic parasitism. Environments that mosquitoes inhabit, such as paddy fields within 2 km and less than 0.5 km from a river, had the greatest association with disease occurrence. Conclusions: Most horse ranches in South Korea are situated in favorable environments for mosquitoes. Moreover, the number of mosquitoes in the country has increased since 2013 due to climate change. Additional research is required; however, these data show that it is necessary to establish guidelines for the use of anthelmintic agents based on local factors in South Korea and disinfection of the environment to prevent disease outbreaks.

Assessing the Old Participants' Capacity of Consent to Oriental Clinical Research (한방 임상연구에 참여한 노인 대상자들의 동의 능력 평가)

  • Yoo, Jong-Hyang;Kim, Yun-Young;Kwon, Ji-Hye;Kim, Ho-Suk;Lee, Si-Woo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.25 no.6
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    • pp.1089-1094
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    • 2011
  • We examined the decision-making capacity of seniors of consent to oriental clinical research. This study was performed in order to improve the quality of ethical aspects before obtaining informed consent. Oriental investigators interviewed 251 seniors who participated in Sasang clinical research. The questionnaire was about the capacity of consent and the subjective awareness of informed consent. Two hundred fifteen out of 250 questionnaires were collected. One hundred thirty four(62.3%) seniors had the capacity of consent to research and 81(37.7%) seniors did not pass. The subjective awareness of informed consent in having the capacity group is $78.02{\pm}12.92$ and not having group is $72.17{\pm}9.17$. The investigation of senior capacity of consent was aimed at protecting seniors' interests and completing investigators' ethical responsibilities. This study found that only 62.3% of senior participants had the capacity of consent. This investigation will be expected to raise the importance of seniors' capacity of consent. Also we expect methods and procedures for capacity assessment of informed consent to be followed for increasing quality of clinical research.

Nanotechnology in Cancer Therapy: Overview and Applications

  • Choi, Eun-Joo
    • Journal of Pharmaceutical Investigation
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    • v.41 no.2
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    • pp.59-65
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    • 2011
  • Nanotechnology for cancer therapy is playing a pivotal role in dramatically improving current approaches to cancer detection, diagnosis, and therapy while reducing toxic side effects associated with previous cancer therapy. A widespread understanding of these new technologies will lead to develop the more refined design of optimized nanoparticles with improved selectivity, efficacy and safety in the clinical practice of oncology. This review provides an integrated overview of applications and advances of nanotechnology in cancer therapy, based on molecular diagnostics, treatment, monitoring, target drug delivery, approved nanoparticle-based chemotherapeutic agents, and current clinical trials in the development of nanomedicine and ultimately personalized medicine.

Recent Advances in Anti-inflammatory Synthetic Flavonoids as Potential Drugs

  • Kim, Hyun-Pyo;Park, Hae-Il
    • Natural Product Sciences
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    • v.16 no.2
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    • pp.59-67
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    • 2010
  • Flavonoids are well-known anti-inflammatory agents that exert their effects via a variety of mechanisms including antioxidative action, inhibition of eicosanoid metabolizing enzymes and regulation of theexpression of proinflammatory molecules. In this review, synthetic approaches to obtain more useful flavonoid derivatives are summarized. Human clinical trials of flavonoid therapy are discussed. Through continual investigation to identify more potent and comparable flavonoids, new anti-inflammatory flavonoid therapy will be successfully launched, especially for the treatment of chronic inflammatory disorders.

Study on the Latest Trends of u-Health and Relations of Medical Technologist

  • Sung, Hyun-Ho;An, Yong-Ho;Lee, Dong-Beom;Kim, Sang-Won;Park, Chang-Eun
    • Korean Journal of Clinical Laboratory Science
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    • v.44 no.4
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    • pp.178-183
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    • 2012
  • We investigated the latest trend of u-Health and relations with clinical technologist. Since 2000, Korea has become an aging society. Korea will become an aged society by 2018, and it is expected to enter the ultra-high aged society by 2026. Increase in over 65 years population means that the desire of medical service and care demand for the elderly is greatly required. In addition, many predicted Korean national health insurance would falter financially. Medical suppression policies and regulations are also amended continuously. U-Health based on the IT industry and development of related technologies and industries contains the variety concepts of telemedicine, telehealth, e-health, u-healthcare and POCT. Especially, the use of POCT supplied quick clinical examination is extending steadily in medical center and hospital, which will generate the field friction between nurses and medical technologists. In the transition situation from provider-centric service to consumer-driven health care system, this study recommended the principal role and correspondence of clinical laboratory workers and offered information about changes in healthcare market and the basic concept of expert system, measurement and the diagnosis principle to clinical technicians throughout the investigation of the recent research and government policy trends.

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