• Title/Summary/Keyword: screening trial

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A Simple and Rapid Method for Functional Analysis of Plant Growth-promoting Rhizobacteria Using the Development of Cucumber Adventitious Root System

  • Bae, Yeoung-Seuk;Park, Kyung-Seok;Lee, Young-Gee;Choi, Ok-Hee
    • The Plant Pathology Journal
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    • v.23 no.3
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    • pp.223-225
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    • 2007
  • Many plant growth-promoting rhizobacteria (PGPRs) have been known for beneficial effects on plants including biological control of soilborne pathogens, induced systemic resistance to plant pathogens, phytohormone production, and improvement of nutrient and water uptake of plants. We developed a simple and rapid method for screening potential PGPR, especially phytohormone producing rhizobacteria, or for analyzing their functions in plant growth using cucumber seedling cuttings. Surface-sterilized cucumber seeds were grown in a plastic pot containing steamed vermiculite. After 7 days of cultivation, the upper part 2 cm in length of cucumber seedling, was cut and used as cucumber cuttings. The base of cutting stem was then dipped in a microcentrifuge tube containing 1.5ml of a bacterial suspension and incubated at $25^{\circ}C$ with a fluorescent light for 10 days. Number and length of developed adventitious roots from cucumber cuttings were examined. The seedling cuttings showed various responses to the isolates tested. Some isolates resulted in withering at the day of examination or in reduced number of roots developed. Several isolates stimulated initial development of adventitious roots showing more adventitious root hair number than that of untreated cuttings, while some isolate had more adventitious root hair number and longer adventitious roots than that of untreated control. Similar results were obtained from the trial with rose cuttings. Our results suggest that this bioassay method may provide a useful way for differentiating PGPR's functions involved in the development of root system.

Daoyin Exercise Therapy for Stroke : A Systematic Review (뇌졸중에 대한 도인 운동요법의 효과: 체계적 문헌 고찰)

  • Lee, Sang-Hyun;Shin, Byung-Cheul;Hwang, Eui-Hyoung;Heo, In;Park, Sun-Young;Hwang, Man-Suk
    • The Journal of Churna Manual Medicine for Spine and Nerves
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    • v.14 no.2
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    • pp.29-42
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    • 2019
  • Objectives : This study aimed to review the effects of Daoyin exercise on stroke patients in clinical studies. Methods : In this study, we reviewed 11 electronic databases (CAJ, EMBASE, Cochrane Library, Web of Science, Pubmed, RISS, Dbpia, NDSL, KISTI, KISS, KMBASE) on October 27, 2019. We included only randomized controlled trials (RCTs) which evaluated the effect of Daoyin exercise on stroke patients. The methodological quality of the included studies was checked using the Cochrane risk of bias tool. Results : After screening the papers, eleven RCTs fulfilled the inclusion criteria. The results of the meta-analysis showed that Daoyin exercise improves the measurement value on the Fugl-Meyer Assessment, Modified Barthel Index and National Institutes of Health Stroke Scale in stroke patients. Conclusions : We concluded that Daoyin exercise has therapeutic effects in functional recovery and in enhancing the independence of daily living activities for stroke patients. However, the quality of the original articles was low and the number of papers included were few. Thus, to confirm these results, further well-designed RCTs should be conducted.

Effect of Health Behavior and Obesity Indices on Blood Pressure in 20s Man (20대 성인 남성에서 건강행태와 비만지표가 혈압에 미치는 영향)

  • Kim, Chul-Gyu
    • The Journal of the Korea Contents Association
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    • v.11 no.8
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    • pp.231-238
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    • 2011
  • This study was conducted to explore the effect of health behavior and obesity indices on blood pressure(BP) in 20s men. This was a retrospective exploratory study and the subjects were 214 men who participated in screening test for clinical trial at a tertiary hospital between October 2006 and April 2011. The proportion of normal SBP and DBP was 28.5% and 50.0%, respectively. BP was significantly higher in individuals who were hypertriglyceridemia and hypercholesterolemia than BP in subjects of opposing categories. DBP was significantly higher in individuals who were 25~29 years and smokers than DBP in subjects of opposing categories. The significant factors of increasing SBP were BMI and TG, and those for DBP were TC, TG, age, and smoking amount. In conclusion, these results demonstrate hypertention prevention program to include decreasing intake of TC and TG, maintaining normal BMI and quitting smoking needs to the young men in 20s.

Analysis of Hospital Admissions Related to Adverse Drug Events Using ADE Signals

  • Lee Suk-Hyang;Kim Hye-Young;Lee Kyung-Hoon;Koo Hyun-Kyung;Kim Yoon
    • Biomolecules & Therapeutics
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    • v.14 no.1
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    • pp.56-65
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    • 2006
  • Adverse drug events (ADEs) are the most common type of adverse events in medical practice. Hospital admissions related to ADEs cost high and should be monitored to prevent them. While concerns about the ADEs are increasing, the frequency and characteristics of admissions related to ADEs have not been reported in Korea. The objective of the study was to assess the rate of hospital admission related to ADEs and their characteristics through ADE signal-based retrospective reviews of medical records. As results, a total of 1,420 patients had ADE signals suggesting potential ADEs from 3,494 patients who discharged from an academic medical center over one month period. Six pharmacists independently assessed the presence of ADEs after the review of patients' medical records. Among the 3,494 discharges, 62 admissions (1.8%) were found to be realted to ADEs. Of admissions with ADEs, 83.9% were moderate (category F by the NCC MERP classification), 37.2% were preventable, and 85.5% were type A reaction. The most frequent suspected drugs causing ADEs were antineoplastics (48.9%), and the most frequent ADE signal detecting hospital admissions related to ADEs was white blood cell count (24.2%). Hospital admissions related to ADEs were found through screening the ADE signals. The ADE signal-based retrospective review could be a practical approach for identifying hospital admissions related to ADEs.

The Effects of Taeeumjowi-tang Extract Granule on Metabolic Syndrome Risk Factors with Obesity: A Single Group, Prospective, Multi-Center Trial (태음조위탕 엑스과립이 비만을 포함한 대사증후군 위험인자에 미치는 영향에 대한 연구: 단일군, 전향적, 다기관 임상연구)

  • Kwak, Jin-Young;Ahn, Taek-Won
    • Journal of Sasang Constitutional Medicine
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    • v.32 no.2
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    • pp.48-60
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    • 2020
  • Objective The purpose of this study is to study the effects of Taeeumjowi-tang extract granule on metabolic syndrome with obesity in Taeeumin. Methods We studied 206 subjects who diagnosed metabolic syndrome with obesity and classified Taeeumin by a Sasang constitution analysis tool. The subjects were administered by Taeeumjowi-tang for 12 weeks. We investigated the changes of body mass index, abdominal circumference, the number of risk factors for metabolic syndrome, lipid, fasting blood sugar, Hemoglobin A1c, free fatty acid, insulin, and blood pressure. Results Body mass index and abdominal circumference, systolic and diastolic blood pressure were significantly reduced after 4 weeks, 8 weeks, and 12 weeks of administration compared to before administration. Triglyceride significantly decreased after 8 weeks and 12 weeks of dosing compared to before taking. Low density lipoprotein cholesterol, fasting blood sugar were significantly increased after 8 weeks of administration compared to before administration. High density lipoprotein cholessterol was decreased significantly after 4 weeks of administration compared to before administration. The number of risk factors for metabolic syndrome, Hemoglobin A1c increased significantly after 12 weeks of administration compared to screening. Conclusions In this study we knew that Taeeumjowi-tang extract granule is very efficient in metabolic syndrome, especially in obesity and hypertension, triglyceride, insulin resistance.

EFFECTS OF ANTHOCYANOSIDE OLIGOMER ON MESOPIC CONTRAST SENSITIVITY IN MILD TO MODERATE MYOPIA

  • Seong Gong Je
    • Proceedings of the Korean Society of Food Science and Nutrition Conference
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    • 2001.12a
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    • pp.52-60
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    • 2001
  • Purpose: We performed a randomized, double-blind, placebo-controlled trial in mild to moderate myopia patients to evaluate the benefit of taking a nutrient supplement containing anthocyanoside oligomers for improving nocturnal visiual function and/or clinical symptoms. Methods: The subjects included have refractive error between -lD(Diopters) $\~$-8D in both eyes, symptoms of decreased night vision and asthenopia based on the scoring result of a pre-structured questionnaire, and abnormal results of mesopic contrast sensitivity(MCS) screening test showing abnormal curve of contrast sensitivity in the middle and high frequency level, between 6.0 and 30.0 CPD(Cycles per degree) at mesopic condition(-2$\~$0 log cd/$m^2$). Total 60 people who qualified the criteria above were enrolled and the subjects were instructed to take the investigational product (anthocyanoside or placebo) twice daily for a 4 week period. The enrolled subjects were investigated for nocturnal vision performance by MCS and clinical symptoms at their first visit and re-evaluated at post-intervention (4 weeks later). MCS was measured and improvement of contrast threshold level according to each CPD was calculated by subtracting initial values from final values. Age, refractive error, and MCS were compared between the placebo and anthocyanoside. Results: After 4 weeks of drug administration 22 of the anthocyanoside group showed symptom improvement compared to 1 of the placebo group (p=0.000). Contrast sensitivity levels according to each CPD before and after drug treatment showed significant improvement in the anthocyanoside group but not in the placebo group. Mean MCS change of anthocyanoside group is 2.41$\pm$1.91 which showed significant improvement compared to -0.40$\pm$2.47 of the placebo group(p=0.000). MCS changes of anthocyanoside group showed significant improvement compared to placebo group in all levels of CPD(p<0.05). During our investigation none of the subjects complained of specific side effects related to anthocyanoside use. Conclusion: Our results show that under careful selection of people with significant symptoms and definite MCS abnormalities, anthocyanoside oligomers may improve the subjective symptoms and objective MCS results.

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Recruitment for Phase I of the Trials of Hypertension Prevention

  • Satterfield Suzanne;Borhani Nemat O.;Whelton Paul;Goodwin Laretha;Brinkmann Connie;Charleston Jeanne;Corkery Beth Walker;Dolan Lee;Hataway Heidi;Hertert Stephanie;Lakatos Ed;Milas N. Carole;Morris Martha Clare
    • 대한예방의학회:학술대회논문집
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    • 1994.02b
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    • pp.313-319
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    • 1994
  • Phase I of the Trials of Hypertension Prevention was a multicenter, randomized, controlled trial designed to determine the efficacy of seven nonpharmacologic interventions in reducing blood pressure among persons with high-normal diastolic blood pressure. the initial goal for recruitment was to enroll 2,100 participants over a nine-month period. The yield from the first screening visit to randomization was 13% overall, with clinic-specific yields ranging from 4.5% to 31.7%. After five months of recruitment, approximately 60% of the goal for that point in the recruitment timetable had been randomized. Clinical centers falling short of their goals at that time altered their recruitment strategies and intensified their efforts, and centers that had exceeded their goals recruited additional participants. As a result, 2,182 participants, or 104\% of the goal for recruitment, were randomized over a 13-month period. Those clinics using a cohort, or wave, type of enrollment were most successful in achieving their recruitment goals within the prescribed timetable.

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Improving Work Functioning and Mental Health of Health Care Employees Using an E-Mental Health Approach to Workers' Health Surveillance: Pretest-Posttest Study

  • Ketelaar, Sarah M.;Nieuwenhuijsen, Karen;Bolier, Linda;Smeets, Odile;Sluiter, Judith K.
    • Safety and Health at Work
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    • v.5 no.4
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    • pp.216-221
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    • 2014
  • Background: Mental health complaints are quite common in health care employees and can have adverse effects on work functioning. The aim of this study was to evaluate an e-mental health (EMH) approach to workers' health surveillance (WHS) for nurses and allied health professionals. Using the waiting-list group of a previous randomized controlled trial with high dropout and low compliance to the intervention, we studied the pre- and posteffects of the EMH approach in a larger group of participants. Methods: We applied a pretest-posttest study design. The WHS consisted of online screening on impaired work functioning and mental health followed by online automatically generated personalized feedback, online tailored advice, and access to self-help EMH interventions. The effects on work functioning, stress, and work-related fatigue after 3 months were analyzed using paired t tests and effect sizes. Results: One hundred and twenty-eight nurses and allied health professionals participated at pretest as well as posttest. Significant improvements were found on work functioning (p = 0.01) and work-related fatigue (p < 0.01). Work functioning had relevantly improved in 30% of participants. A small meaningful effect on stress was found (Cohen d = .23) in the participants who had logged onto an EMH intervention (20%, n = 26). Conclusion: The EMH approach to WHS improves the work functioning and mental health of nurses and allied health professionals. However, because we found small effects and participation in the offered EMH interventions was low, there is ample room for improvement.

Chuna Manual Therapy for Lymphedema: A Systematic Review and Meta-analysis (림프부종에 대한 추나요법의 효과: 체계적 문헌고찰과 메타분석)

  • Chung, In-Che;Kim, Ye-eun;Ahn, Jeong-hoon;Han, In-sik;Park, In-hwa;Cha, Yun-Yeop
    • Journal of Korean Medicine Rehabilitation
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    • v.31 no.2
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    • pp.15-24
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    • 2021
  • Objectives Purpose of our study is to investigate the preventive and therapeutic effect of Chuna manual therapy (CMT) for lymphedema. Methods A study search of 10 databases was performed. We included the randomized controlled trials (RCTs) which performed CMT for lymphedema in this study. The keywords used were 'chuna' or 'tuina' and 'lymphedema'. Two independent authors rated study quality and risk of bias using the Cochrane risk of bias tool. Results 9 appropriate RCTs were remained after screening. The therapeutic effects of the experimental group was statistically higher than that of the control group with functional exercise or taking western medicine. Subjective symptom score was also lower in the CMT group. Conclusions These results suggests that CMT has sufficient evidence that it is more effective in prevent or alleviating symptoms of lymphedema than conventional treating methods. However, due to the high risk of bias of included studies, further researches are needed with higher quality of evidence.

A study on the development of SRI(Security Risk Indicator)-based monitoring system to prevent the leakage of personally identifiable information (개인정보 유출 방지를 위한 SRI(Security Risk Indicator) 기반 모니터링 시스템 개발)

  • Park, Sung-Ju;Lim, Jong-In
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.22 no.3
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    • pp.637-644
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    • 2012
  • In our current information focused society, information is regarded as a core asset and the leakage of customers' information has emerged as a critical issue, especially in financial companies. It is very likely that the technology that safeguards which is currently in commercial use is not focused at an enterprise level but is fragmented by function or by only guards portions of a customer's personal information. Therefore, It is necessary to study the systems which monitor the indicators of access at an enterprise level in order to preemptively prevent the compromise of such data. This study takes an enterprise perspective on such systems for a financial company. I will focus on examination of the methods of implementation of the monitoring system, the application of pattern analysis and examination of Security Risk Indicators (SRI). A trial of the monitoring system provided security managers and related departments with proper screening capabilities of information. Therefore, it is possible to establish a systemic counter-plans based on detectable patterns.