• 제목/요약/키워드: medical study

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Trichostatin A-induced Apoptosis is Mediated by Krüppel-like Factor 4 in Ovarian and Lung Cancer

  • Zohre, Sadeghi;Kazem, Nejati-Koshki;Abolfazl, Akbarzadeh;Mohammad, Rahmati-Yamchi;Aliakbar, Movassaghpour;Effat, Alizadeh;Zahra, Davoudi;Hassan, Dariushnejad;Nosratollah, Zarghami
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권16호
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    • pp.6581-6586
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    • 2014
  • Background: The istone deacetylase (HDAC) inhibitor trichostatin A (TSA) is known to mediate the regulation of gene expression and antiproliferation activity in cancer cells. Kr$\ddot{u}$ppel-like factor 4 (klf4) is a zinc finger-containing transcription factor of the SP/KLF family, that is expressed in a variety of tissues and regulates cell proliferation, differentiation, tumorigenesis, and apoptosis. It may either either function as a tumor suppressor or an oncogene depending on genetic context of tumors. Aims: In this study, we tested the possibility that TSA may increase klf4 expression and cancer cell growth inhibition and apoptosis in SKOV-3 and A549 cells. Materials and Methods: The cytotoxicity of TSA was determined using the MTT assay test, while klf4 gene expression was assessed by real time PCR andto ability of TSA to induce apoptosis using a Vybrant Apoptosis Assay kit. Results: Our results showed that TSA exerted dose and time dependent cytotoxicity effect on SKOV-3 and A549 cells. Moreover TSA up-regulated klf4 expression. Flow cytometric analysis demonstrated that apoptosis was increased after TSA treatment. Conclusions: Taken together, this study showed that TSA increased klf4 expression in SKOV3 and A549 cell lines, consequently, klf4 may played a tumor-suppressor role by increasing both cell growth inhibition and apoptosis. This study sheds light on the details of molecular mechanisms of HDACI-induced cell cycle arrest and apoptosis.

Glutathione S-Transferase Expression in Upper Urinary Tract Urothelial Carcinomas: a Taiwan Study

  • Chen, Szu-Han;Wu, Wen-Jeng;Tu, Hung-Pin;Li, Wei-Ming;Huang, Chun-Nung;Li, Ching-Chia;Lin, Hui-Hui;Ke, Hung-Lung
    • Asian Pacific Journal of Cancer Prevention
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    • 제14권11호
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    • pp.6475-6479
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    • 2013
  • Objectives: Glutathione S-transferase (GST) isoenzymes play important roles in resistance to cell apoptosis and carcinogenesis. We aimed to establish the relationship between GST expression and the prognosis of upper urinary tract urothelial carcinoma (UTT-UC) in Taiwan. Methods: This study retrospectively reviewed 46 patients with pathologically confirmed UUT-UC at Kaohsiung Medical University Hospital. In each patient, expression of GSTT1 and GSTP1 was compared between urothelial carcinoma and normal urothelial cells by Western blotting. Results: GSTP1 expression in the UUT-UC cells was significantly higher than that in normal urothelial cells (1.6 fold, p<0.001). Expression of GSTT1 was significantly associated with the invasiveness of the carcinoma (p=0.006). Conclusions: In UUT-UC, GSTP1 might be a potential tumor marker, whereas high GSTT1 expression could be used as an indicator of cancer progression. This study is the first to demonstrate potential applications of different GST isoenzymes for biomolecular analysis of UUT-UCs in Taiwan.

노인장기요양 등급 및 급여 특성이 의료이용에 미치는 영향 (The Effect of Long-Term Care Ratings and Benefit Utilization Characteristics on Healthcare Use)

  • 손강주;오성진;윤종민
    • 보건행정학회지
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    • 제33권3호
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    • pp.295-310
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    • 2023
  • Background: The long-term care (LTC) group has higher rates of chronic disease and disability registration compared to the general older people population. There is a need to provide integrated medical services and care for LTC group. Consequently, this study aimed to identify medical usage patterns based on the ratings of LTC and the characteristics of benefits usage in the LTC group. Methods: This study employed the National Health Insurance Service Database to analyze the effects of demographic and LTC-related characteristics on medical usage from 2015 to 2019 using a repeated measures analysis. A longitudinal logit model was applied to binary data, while a linear mixed model was utilized for continuous data. Results: In the case of LTC ratings, a positive correlation was observed with overall medical usage. In terms of LTC benefit usage characteristics, a higher overall level of medical usage was found in the group using home care benefits. Detailed analysis by medical institution classification revealed a maintained correlation between care ratings and the volume of medical usage. However, medical usage by classification varied based on the characteristics of LTC benefit usage. Conclusion: This study identified a complex interaction between LTC characteristics and medical usage. Predicting the requisite medical services based on the LTC rating presented a challenge. Consequently, it becomes essential for the LTC group to continuously monitor medical and care needs, even after admission into the LTC system. To facilitate this, it is crucial to devise an LTC rating system that accurately reflects medical needs and to broaden the implementation of integrated medical-care policies.

Study of the Prior Review System about Medical Advertising on the Existing Laws

  • Kim, Woon-Shin;Joung, Soon-Hyoung
    • 한국컴퓨터정보학회논문지
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    • 제21권6호
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    • pp.97-106
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    • 2016
  • This study tries to seek the is the realistic improvements and legislative measures about current medical advertising which was in the Court on 12 May 2015 by presenting and discussion the understanding, problems and its alternative direction of pre-deliberation on the existing law which is the decision on the constitutionality of health care advertising regulated health care advertising General commercial advertising has the right which have to be protected as the terms of the protection of know and freedom of expression and advertiser's there are sure to be in a value to be protected. Medical advertising is also a person in addition to the absolute value that includes both Due to the particularity of medical advertising in terms of life and the right to health Until now, this has been the target of strong regulations are changing the policy of gradual deregulation in our country, including the country. Medical advertising on the current medical law had been to be checked by pre-deliberation of the executive power. However, due to unconstitutional, in the circumstances which a false hype is flooding and increasing, it has been realized that the fair competition of medical community, life and health rights of the people are threatened by in reverse. In this regard, the abolition of the pre-deliberation system of medical advertising can be welcomed by abolition of the old system which is the legal and institutional censorship. Since its abolition, the alternative policy direction is insufficient also it is not clear. Therefore we need to study this. Therefore, in this paper, we try to find general theoretical background and problem of pre-deliberation system of medical advertising. Also, as trying to find feasibility or ambiguity of regulation and issues about medical advertising on medical law, we argued the provision of special measures of the medical advertising for introduction of integrated medical advertising deliberation committee which can ensure the independence and autonomy, strengthening of the monitoring on the internet advertising, legal resolving through amendments, strengthening of penalties, and establish special measures of medical advertising for the medical privatization and demand for the foreign medical tourist, etc. Empirical study about practical regulatory measures of medical advertising which converged the various opinions of consumer groups, government and academia, and medical community, and we expect hope to see the more realistic alternative provision.

RFID 기술을 이용한 한약재 이력관리 방안에 관한 연구 (A study of plan for traceability of a Korean herb using RFID technology)

  • 김철;송미영
    • 한국한의학연구원논문집
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    • 제12권3호통권18호
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    • pp.31-47
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    • 2006
  • Nowadays Korean governments use Information Technology to improve the quality of life for a people. One of these tries is building the Food Tracing System based on Information Technology. Koreans have big concern about food that is good for health. The Food Tracing System means that the system can follows, traces, and records every steps of production and delivery of food and its ingredient. And this process should be identified and grouped by using tags, marks, and other methods. For example, producer of ingredient, processing steps of food, delivered place could be traced. In addition to food, medical herbs need consumer's trust in production and delivery. To trace and prosecute contaminated medical herbs, medical herbs also need this kind of Tracing System based on Information Technology. This study shows current medical herbs tracing ways and RFID(Radio Frequency IDentification) technology trend. As preceding study for future RFID based medical herbs tracing system, this study suggests the building plan and scenario of the Medical Herbs Tracing System. The determination of the main body for sticking RFID Tags is very important to design for RFID Traceability System. In this study, the starting point of information to medical herbs is an inspection agency. The Medical Herbs to product domestically or import moved to an inspection agency. An inspection agency bond the RFID Tags to packing of the Medical Herbs after examining the a basic its component. At the same time inspector give the information of production or importation to the Tags. This Tags are moved for logistical process to end point, the Korean medicine agency. The customer confirmed the traceability and certification information of the Medical Herbs. For success tracing of medical herbs, institutional support and close cooperation between related organizations is necessary besides good system design.

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한방 전문과목 추가신설에 대한 한의사들의 인식 조사 (A Study on Opinions of Oriental Medical Doctors in Introducing New Specialties in Oriental Medicine)

  • 윤채현;박형준;이신재;문옥륜
    • 대한예방한의학회지
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    • 제9권1호
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    • pp.1-16
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    • 2005
  • This study was conducted to identify the needs of introducing new medical specialties in oriental medicine. Three stakeholders in introducing new oriental medical specialties are oriental medical doctors, policy makers and medical consumers. Of the three, this study intended to focus on opinions of oriental medical doctors. About 1,150 self-administered questionaries were sent to the potential respondents, 320 specialists, 250 interns & residents and 580 private oriental medicine practitioners, and 480 doctors responded. The study revealed that 62% of respondents showed negative attitudes towards the introduction of new oriental medicine specialties. The private oriental medical practitioners were more likely not in favor of adding new medical boardmanship. The reasons of objection were as follows : First, it is more important to enrich the existing oriental medical boardmanship (70%). Second, the newly established specialties are most likely to be weakened(15%). The study revealed that the first and most likely specialties to be introduced was Chuna(18%), subspecialization of oriental internal medicine (15.8%), the next oriental family medicine (15.1%) and so on. And the second specialties to be desired most by the respondents were (1) cooperative medicine between the westem and oriental medicine (28%), (2) oriental preventive medicine (17.4%) and (3) oriental family medicine (16.8%). Caution must be exercised in introducing new oriental medicine specialties. The failures of western medicine in the operation of its specialist production should carefully by examined here.

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Epidemiology and outcomes of patients with penetrating trauma in Incheon Metropolitan City, Korea based on National Emergency Department Information System data: a retrsopective cohort study

  • Youngmin Kim;Byungchul Yu;Se-Beom Jeon;Seung Hwan Lee;Jayun Cho;Jihun Gwak;Youngeun Park;Kang Kook Choi;Min A Lee;Gil Jae Lee;Jungnam Lee
    • Journal of Trauma and Injury
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    • 제36권3호
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    • pp.224-230
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    • 2023
  • Purpose: Patients with penetrating injuries are at a high risk of mortality, and many of them require emergency surgery. Proper triage and transfer of the patient to the emergency department (ED), where immediate definitive treatment is available, is key to improving survival. This study aimed to evaluate the epidemiology and outcomes of patients with penetrating torso injuries in Incheon Metropolitan City. Methods: Data from trauma patients between 2014 and 2018 (5 years) were extracted from the National Emergency Department Information System. In this study, patients with penetrating injuries to the torso (chest and abdomen) were selected, while those with superficial injuries were excluded. Results: Of 66,285 patients with penetrating trauma, 752 with injuries to the torso were enrolled in this study. In the study population, 345 patients (45.9%) were admitted to the ward or intensive care unit (ICU), 20 (2.7%) were transferred to other hospitals, and 10 (1.3%) died in the ED. Among the admitted patients, 173 (50.1%) underwent nonoperative management and 172 (49.9%) underwent operative management. There were no deaths in the nonoperative management group, but 10 patients (5.8%) died after operative management. The transferred patients showed a significantly longer time from injury to ED arrival, percentage of ICU admissions, and mortality. There were also significant differences in the percentage of operative management, ICU admissions, ED stay time, and mortality between hospitals. Conclusions: Proper triage guidelines need to be implemented so that patients with torso penetrating trauma in Incheon can be transferred directly to the regional trauma center for definitive treatment.