• 제목/요약/키워드: Radiological Effects

검색결과 588건 처리시간 0.023초

보완대체요법에 대한 당뇨병환자의 인식 및 이용현황 (Perception and Use of Complementary and Alternative Medicine in Diabetic Patients in Busan Area)

  • 김혜령;손은주;김미경;류은순
    • 대한지역사회영양학회지
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    • 제16권4호
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    • pp.488-496
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    • 2011
  • The purpose of this study was to investigate the perception and utilization of Complementary and Alternative Medicine (CAM) for diabetic patients in Busan. The subjects were 227 patients at two general hospitals (over 400 bed). This study was performed through the interviewing process using questionnaires conducted from January to April, 2010. Of a total of subjects, 109 patients (48.0%) had taken CAM at least one time. The patients used CAM recognized that they were 'auxiliary medicines' (39.4%), 'supplementary health foods' (32.1%) and 'medicines' (19.3%), but inexperienced patients perceived them as 'supplementary health foods' (29.6%), 'unscientific treatment' (22.6%) and 'medicines' (20.2%), It was significantly different between two groups of patients (p < 0.001). The number of CAM types used for the patients was 51. The CAM types were plant foods (64.3%), dietary supplement (23.6%) and animal diets (12.1%). The patients used an average of 5.9 different kinds of CAM and an average of 3.8 years them and paid \93,345 per month. The patients with diabetic complications and for longer morbidity periods used CAM for significantly (p < 0.05) longer periods. The mean effectiveness scores of the patients used CAM were 3.31/5.00 for efficacy satisfaction, 3.58/5.00 for fewer side effects compared to those of oral drugs, 3.60/5.00 for psychological stability, 3.81/5.00 for easiness to use, and 3.06/5.00 for economic satisfaction. Of the patients that used CAM, 55.9% did not consult with doctors about CAM. More than two-thirds of the patients (77.1%) did not feel the need to consult with doctors.

민방위 대피시설 계획 및 설계 방안에 관한 연구 1 - 민방위 대피시설의 현황 및 설계기준을 중심으로 - (A Study on the Planning of Civil Defense Shelter and Design 1 - On the ideas of the State of Civil Defense Shelter & Design Criteria -)

  • Park, Namkwun;Paik, Sungkun
    • 한국재난정보학회 논문집
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    • 제10권3호
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    • pp.358-365
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    • 2014
  • 북한은 화생방 무기체계운용의 경제성과 재래식 무기의 한계성을 인지하여 비대칭 전력을 활용한 대량살상무기에 대해 꾸준한 준비를 하고 있는 상황이다. 그러나 현재의 민방위 대피시설은 실질적으로 재래식 폭탄 및 미사일 등에 대한 위협만을 고려하고 있으며, 화생방 및 각종 테러 등의 재난 발생 시 적절하게 대응하지 못하여 민간의 피해를 가중시킬 수 있는 위험성을 내포하고 있다. 이에 본 연구는 우리의 실정과 재난 특성에 따라 적절히 대응할 수 있는 민방위대피시설의 계획 및 설계 방안을 도출하기 위해 화생방 재난을 중심으로 민방위 대피시설의 현황 및 설계기준을 파악하였으며 연구를 통해 얻은 결과 및 제안사항을 제시하고 있다.

말기 류마티스성 발목관절염에 대한 인공관절 전치환술 및 항류마티스 약물 조절 후의 중기 추시 임상 결과 (Intermediate-Term Clinical Outcomes after Total Ankle Arthroplasty for End-Stage Rheumatoid Arthritis with Modification of Perioperative Anti-Rheumatic Medication)

  • 조병기;고반석
    • 대한족부족관절학회지
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    • 제23권3호
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    • pp.91-99
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    • 2019
  • Purpose: This retrospective study reports the intermediate-term clinical outcomes including the practical function in daily and sports activities after total ankle arthroplasty for end-stage rheumatoid arthritis, as well as the effects of modification of perioperative anti-rheumatic medications. Materials and Methods: Twelve patients were followed for a minimum of 2 years after total ankle replacement for end-stage rheumatoid arthritis. Perioperative anti-rheumatic medications in all patients were modified based on a specific guideline. Clinical evaluations consisted of American Orthopaedic Foot and Ankle Society (AOFAS) scores, Foot and Ankle Outcome Score (FAOS), and Foot and Ankle Ability Measure (FAAM) scores. Periodic radiographic evaluation was conducted to detect changes in ankle alignment and postoperative complications. Results: Mean AOFAS, FAOS, and FAAM scores improved significantly from 37.5 to 81.2, 39.1 to 72.4, and 33.8 to 64.0 points at final follow-up, respectively (p<0.001). Functional outcomes in daily and sports activities at final follow-up were found to be 76.5 and 55.8 points for the FAOS and 70.5 and 57.5 points for the FAAM, respectively. As early postoperative complications, there was one case of local wound necrosis, one case of medial malleolar fracture, and one case of deep peroneal nerve injury. Radiological evaluation revealed two cases of asymptomatic heterotopic ossification and one case of progressive arthritis in the talonavicular joint. Reoperation was performed in only one patient (8.3%) with a medial soft tissue impingement at a mean of 35.6 months follow-up. Conclusion: Total ankle arthroplasty appears to be an effective surgical option for end-stage rheumatoid arthritis. Practical functions in daily and sports activities were significantly improved at intermediate-term follow-up. Modification of perioperative anti-rheumatic medications can be one of the solutions to reduce the postoperative complication rate.

Radiotherapy for gastric mucosa-associated lymphoid tissue lymphoma: dosimetric comparison and risk assessment of solid secondary cancer

  • Bae, Sun Hyun;Kim, Dong Wook;Kim, Mi-Sook;Shin, Myung-Hee;Park, Hee Chul;Lim, Do Hoon
    • Radiation Oncology Journal
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    • 제35권1호
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    • pp.78-89
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    • 2017
  • Purpose: To determine the optimal radiotherapy technique for gastric mucosa-associated lymphoid tissue lymphoma (MALToma), we compared the dosimetric parameters and the risk of solid secondary cancer from scattered doses among anterior-posterior/ posterior-anterior parallel-opposed fields (AP/PA), anterior, posterior, right, and left lateral fields (4_field), 3-dimensional conformal radiotherapy (3D-CRT) using noncoplanar beams, and intensity-modulated radiotherapy composed of 7 coplanar beams (IMRT_co) and 7 coplanar and noncoplanar beams (IMRT_non). Materials and Methods: We retrospectively generated 5 planning techniques for 5 patients with gastric MALToma. Homogeneity index (HI), conformity index (CI), and mean doses of the kidney and liver were calculated from the dose-volume histograms. Applied the Biological Effects of Ionizing Radiation VII report to scattered doses, the lifetime attributable risk (LAR) was calculated to estimate the risk of solid secondary cancer. Results: The best value of CI was obtained with IMRT, although the HI varied among patients. The mean kidney dose was the highest with AP/PA, followed by 4_field, 3D-CRT, IMRT_co, and IMRT_non. On the other hand, the mean liver dose was the highest with 4_field and the lowest with AP/PA. Compared with 4_field, the LAR for 3D-CRT decreased except the lungs, and the LAR for IMRT_co and IMRT_non increased except the lungs. However, the absolute differences were much lower than <1%. Conclusion: Tailored RT techniques seem to be beneficial because it could achieve adjacent organ sparing with very small and clinically irrelevant increase of secondary solid cancer risk compared to the conventional techniques.

저준위 및 극저준위 방사성폐기물 표층처분시설의 인간침입 시나리오 안전평가에 대한 고찰 (Safety Assessment on the Human Intrusion Scenarios of Near Surface Disposal Facility for Low and Very Low Level Radioactive Waste)

  • 홍성욱;박상호;박진백
    • 방사성폐기물학회지
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    • 제14권1호
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    • pp.79-90
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    • 2016
  • The second-stage near surface disposal facility for low and very low level radioactive waste's permanent disposal is to be built. During the institutional control period, the inadvertent intrusion of the general public is limited. But after the institutional control period, the access to the general public is not restricted. Therefore human who has purpose of residence and resource exploration can intrude the disposal facility. In this case, radioactive effects to the intruder should be limited within regulatory dose limits. This study conducted the safety assessment of human intrusion on the second-stage surface disposal facility through drilling and post drilling scenario. Results of drilling and post drilling scenario were satisfied with regulatory dose limits. The result showed that post-drilling scenario was more significant than drilling scenario. According to the human intrusion time and behavior after the closure of the facility, dominant radionuclide contributing to the intruder was different. Sensitivity analyses on the parameters about the human behavior were also satisfied with regulatory dose limits. Especially, manual redistribution factor was the most sensitive parameter on exposure dose. A loading plan of spent filter waste and dry active waste was more effective than a loading plan of spent filter waste and other wastes for the radiological point of view. These results can be expected to provide both robustness and defense in depth for the development of safety case further.

피폭선량저감 섬유의 개발과 CT 검사시 산란선 차폐 효과 (Development and Radiation Shield effects of Dose Reduction Fiber for Scatter ray in CT Exams)

  • 김성환;김용진;곽종석
    • 한국산학기술학회논문지
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    • 제14권4호
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    • pp.1871-1876
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    • 2013
  • 본 연구에서는 평균 입자의 크기가 $1{\sim}500{\mu}m$인 산화비스무스($Bi_2O_3$)와 평균 입자의 크기가 5 ~ 50 nm인 나노 황산바륨($BaSO_4$)을 사용하여 선량저감섬유(DRF; dose reduction fiber, (주)버팔로)를 개발하였다. 개발된 섬유를 시트 형태로 제작한 후 CT 검사시 발생한 산란선에 대한 차폐 특성을 조사하였다. 특성평가는 전리조와 인체 펜텀을 이용한 팬텀실험과 유리선량계를 이용한 임상실험을 병행하여 진행하였다. 임상실험에서는 3개 종합병원 60명의 환자에 대한 흉부 및 두부 CT 검사시 선량저감섬유를 사용하였을 때와 사용하지 않았을 때 안구, 흉부, 복부 및 생식선의 피부 및 심부 선량을 비교하여 차폐효과를 평가하였다. 본 연구를 통하여 개발된 선량저감섬유는 산란선에 의한 두부 및 흉부에 불필요한 피폭선량을 20~50% 정도 저감할 수 있는 것으로 확인되었으며, CT 검사시 본 섬유를 활용한다면 환자 피폭선량을 포함한 국민 총피폭선량 경감에 기여할 수 있을 것이다.

염화제2철이 유도하는 경동맥 손상 렛트 모델에서 상엽 추출물의 혈행개선 효과 (Effect of Mori Folium Extract on Improvement of Blood Flow in Ferric Chloride-Induced Carotid Artery Damage Rat Model)

  • 강현주;전인화;권태오;최지원;김성주;장선일
    • 동의생리병리학회지
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    • 제28권6호
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    • pp.607-613
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    • 2014
  • In a previous study, we have shown that mulberry leaves (Mori Folium) extract MFE) and its compounds have the antioxidant effect in human red blood cells. However, the possible effect of MFE and its compounds on improvement of blood flow were not reported. Therefore, the aim of this study is to investigate the effects of MFE and its compounds on improvement of blood flow in a rat model of topical ferric chloride ($FeCl_3$)-induced carotid artery damage. The $FeCl_3$ treatment seriously damaged the carotid artery: the walls of the artery, blood flow rate, blood vessel diameter, blood vessel area and blood flow amount. However, administration of MFE or its compound has ameliorated the blood flow and suppressed thrombus in blood vessels. Moreover, the concentrations of serum total cholesterol, triglycerides, and LDL cholesterol in the MET and its compound groups were remarkably reduced in comparison to the control group, and HDL cholesterol concentration was higher in the MET and its compound groups than in the control group. These results suggest that MFE and its compounds ameliorate the thrombosis against blood vessel damage.

The antinociceptive and anti-inflammatory effect of water-soluble fraction of bee venom on rheumatoid arthritis in rats

  • Lee, Jang-Hern;Kwon, Young-Bae;Lee, Jae-Dong;Kang, Sung-Keel;Lee, Hye-Jung
    • 대한약침학회지
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    • 제4권1호
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    • pp.65-84
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    • 2001
  • We recently demonstrated that bee venom (BV) injection into acupoint (i.e. Zusanli) produced more potent anti-inflammatory and antinociciptive effect in Freunds adjuvant induced rheumatoid arthritis (RA) model as compared with that of non-acupoint injection(i.e back). However, the precise components underlying BV-induced antinociceptive and/or anti-inflammatory effects have not been fully understood. Therefore, we further investigated the anti-arthritic effect of BV after extracting the whole BV according to solubility (water soluble: BVA, ethylacetate soluble: BVE). Subcutaneous BVA treatment (0.9 mg/kg/day) into Zusanli acupoint was found to dramatically inhibit paw edema and radiological change (i.e. new bone proliferation and soft tissue swelling) caused by Freunds adjuvant injection. In addition, the increase of serum interleukin-6 by RA induction was normalized by the BVA treatment as similar with that of non-arthritic animals. On the other hand, BVA therapy significantly reduced arthritis induced nociceptive behaviors (i.e., nociceptive score for mechanical hyperalgesia and thermal hyperalgesia). Furthermore, BVA treatment significantly suppressed adjuvant induced Fos expression in the lumbar spinal cord at 3 weeks post-adjuvant injection. However, BVE treatment (0.05 mg/kg/day) has not any anti-inflammatory and anti-nociceptive effect on RA. Based on the present results, we demonstrated that BVA might be a effective fraction in whole BV for long-term treatment of RA-induced pain and inflammation. However, it is clear necessary that further fraction study about BVA was required for elucidating an effective component of BVA.

Theoretical Conception of Synergistic Interactions

  • Kim, Jin-Kyu;Vladislav G. Petin
    • 환경생물
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    • 제20권4호
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    • pp.277-286
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    • 2002
  • An increase in the overall biological effect under the combined action of ionizing radiation with another inactivating agent can be explained in two ways. One is the supposition that synergism may attribute to a reduced cellular capacity of damn-ge repair after the combined action. The other is the hypothesis that synergism may be related to an additional lethal or potentially lethal damage that arises from the interaction of sublesions induced by both agents. These sublesions ave considered to be in-effective when each agent is applied separately. Based on this hypothesis, a simple mathematical model was established. The model can predict the greatest value of the synergistic effect, and the dependence of synergy on the intensity of agents applied, as well. This paper deals with the model validation and the peculiarity of simultaneous action of various factors with radiation on biological systems such as bacteriophage, bacterial spores, yeast and mammalian cells. The common rules of the synergism aye as follows. (1) For any constant rate of exposure, the synergy can be observed only within a certain temperature range. The temperature range which synergistically increases the effects of radiation is shifted to the lower temperature fer thermosensitive objects. Inside this range, there is a specific temperature that maximizes the synergistic effect. (2) A decrease in the exposure rate results in a decrease of this specific temperature to achieve the greatest synergy and vice versa. For a constant temperature at which the irradiation occurs, synergy can be observed within a certain dose rate range. Inside this range an optimal intensity of the physical agent may be indicated, which maximizes the synergy. As the exposure temperature reduces, the optimal intensity decreases and vice versa. (3) The recovery rate after combined action is decelerated due to an increased number of irreversible damages. The probability of recovery is independent of the exposure temperature for yeast cells irradiated with ionizing or UV radiation. Chemical inhibitors of cell recovery act through the formation of irreversible damage but not via damaging the recovery process itself.

Cyclosporin 치료로 호전된 비특이성 간질성 폐렴 1예 (A Case of Nonspecific Interstitial Pneumonitis Improved After Cyclosporin Therapy)

  • 안상미;조숙경;임승관;송영준;최준혁;신승수;오윤정;최영화;박광주;황성철
    • Tuberculosis and Respiratory Diseases
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    • 제55권6호
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    • pp.631-635
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    • 2003
  • 비특이성 간질성 폐렴에서 대개의 경우 스테로이드 치료로 호전지만 스테로이드 저항성 인 경우 여러 가지 면역 억제제가 이차 약제로 치료에 시도되고 있으며 본 증례에서는 cyclosprin을 이차약제로 사용해서 좋은 치료 효과를 얻었기에 문헌 고찰과 함께 보고 하는 바이다.