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안식향산 함유 식품 섭취가 톨루엔 폭로 근로자들의 요중 마뇨산 농도에 미치는 영향
심상효,손정일,박정일 大韓産業醫學會 1996 대한직업환경의학회지 Vol.8 No.3
This study was performed to investigate the effect of foods containing benzoic acid on the urinary hippuric acid concentration in the toluene exposed workers. The urinary hippuric acid concentration were measured at 0, 30, 60, 90, 120 and 150 minute after intake of soft drink and bread containing benzoic acid in volunteers, who did not have been exposed toluene occupationally. After that urinary hippuric acids were measured at the end of shift in toluene exposed workers. And also the concentration of toluene in air were analysed by gas chromatography. So the relationships between urinary hippuric acid concentration and age, work duration, concentration of toluene in air and intake of benzoic acid containing food were observed. The results were as follows: 1. The urinary hippuric acid concentration reached the highest level at 30 minute after intake of soft drink with bread at a level of 1.41g/g creatinine and soft drink alone at a level of 1.04g/g creatinine which contained benzoic acid among unexposed toluene, and then gradually decreased. 2. In toluene exposed group to significant effect of general characteristics such as gender, age, work duration, drinking and smoking on urinary hippuric acid concentration was showed in toluene exposed group. 3. The mean value of urinary hippuric acid concentration of group taking benzoic acid containing foods was significantly higher than that of group not taking. 4. Multiple regression analysis showed that toluene concentration in air and benzoic acid containing foods were together significantly influence on urinary hippuric acid concentration. And the function between variables is Y=0.014Toluene+0.489Benzoic acid+0.745 and the contribution rates were 31%. In conclusion, it was suggested that the information on intake of benzoic acid containing foods should be considered in measurement of urinary hippuric acid for the more accurate toluene exposure evaluation.
포름알데하이드에 폭로된 해부학 실습 학생들의 임파구 자매염색분체교환
백두진,주수자,김기영,이수진,심상효,손정일,심성한,송재철,조율희 大韓産業醫學會 1998 대한직업환경의학회지 Vol.10 No.2
Sister-chromatid exchanges measured in the peripheral lymphocytes of 15 non-smoking medical students after exposure to formaldehyde during 24-week anatomy class showed a small but significant (p=0.0468) increase when compared with samples obtained from the same individuals immediately before exposure. Mean frequencies of sister-chromatid exchange of cultured peripheral lymphocytes were 5.40±0.24 from the samples before exposure and 5.87±0.22 from the same samples after exposure. Breathing-zone air samples collected by formaldehyde monitoring kit with digital colorimeter(SKC) showed a mean concentration of 0.72±0.02 ppm formaldehyde.
담석 성분에 따른 담낭점막의 MUC3, MUC5AC, MUC6 및 Epidermal Growth Factor Receptor 발현
김효정 ( Kim Hyo Jeong ),김재선 ( Kim Jae Seon ),김경오 ( Kim Gyeong O ),박기호 ( Park Gi Ho ),임형준 ( Im Hyeong Jun ),김진용 ( Kim Jin Yong ),연종은 ( Yeon Jong Eun ),박종재 ( Park Jong Jae ),심재정 ( Sim Jae Jeong ),변관수 ( By 대한소화기학회 2003 대한소화기학회지 Vol.42 No.4
Jeong, Hyo Seon,Lee, Kun Sei,Chee, Hyun Keun,Ahn, Hye Mi,Sim, Sung Bo The Korean Society for Thoracic and Cardiovascular 2016 Journal of Chest Surgery (J Chest Surg) Vol.49 No.sup
Background: The purpose of this study is to evaluate the concentration of cardiovascular surgical procedures in a metropolitan area and investigate the perception of specialists regarding governmental policies to resolve this imbalance. Methods: From March to May 2015, surveys were distributed to members of the Thoracic and Cardiovascular Surgery Association. The final pool of research subjects consisted of 75 respondents. Subjects were queried regarding the concentration of cardiovascular operations in metropolitan areas, alternatives to the imbalance, and governmental policies to resolve the inequalities. Results: Survey participants responded that South Korea needs governmental policies to alleviate the concentration of cardiovascular surgery patients in large metropolitan hospitals. Participants agreed that the freedom to choose medical institutions and improved accessibility to metropolitan hospitals due to advanced transportation systems were some of the causes for the concentration. A majority (98.7%) of respondents thought establishing thoracic and cardiovascular surgery centers in provinces was an appropriate solution to alleviate the concentration. Thoracic and cardiovascular surgery specialists were ranked as the number one group on which to focus development. Conclusion: Developing and carrying out policies to establish thoracic and cardiovascular surgery centers in provinces will alleviate the regional imbalance in available heart surgery services and an overall improvement in cardiovascular disease treatment in South Korea.
Sim, Doo Sun,Jeong, Myung Ho,Kim, Hyo Soo,Gwon, Hyeon Cheol,Seung, Ki Bae,Rha, Seung Woon,Chae, Shung Chull,Kim, Chong Jin,Cha, Kwang Soo,Park, Jong Sun,Yoon, Jung Han,Chae, Jei Keon,Joo, Seung Jae,Ch Elsevier 2018 Journal of cardiology Vol.72 No.5
<P><B>Abstract</B></P> <P><B>Background</B></P> <P>Dual antiplatelet therapy (DAPT) is recommended in patients receiving drug-eluting stents (DES). However, bleeding risk should be weighed against ischemic risk. Utility of GRACE risk score and ACUITY-HORIZONS bleeding risk score was assessed in patients with acute myocardial infarction (MI) according to use of P2Y12 blocker.</P> <P><B>Methods</B></P> <P>From the Korea Acute Myocardial Infarction Registry-National Institute of Health database, 7791 patients with acute MI receiving DES were divided into ticagrelor (<I>n</I> =1554) and clopidogrel (<I>n</I> =6237) groups. Propensity-matched 12-month mortality and bleeding event rates were compared according to GRACE and ACUITY-HORIZONS scores. Patients who received thrombolysis, prasugrel or anticoagulants, or who discontinued or switched DAPT were excluded.</P> <P><B>Results</B></P> <P>In all patients, high-risk patients more often received clopidogrel. After propensity score matching (<I>n</I> =1553 in each group), 12-month mortality was not different, but TIMI major bleeding rate was higher with ticagrelor (2.8% vs. 1.4%, <I>p</I> =0.007). On subgroup analysis, 12-month mortality was lower with ticagrelor in patients with high (>140) compared to low-to-moderate risk GRACE score (5.1% vs. 7.9%, <I>p</I> =0.04). When combined with ACUITY-HORIZONS bleeding score, 12-month mortality was lower with ticagrelor in patients with high GRACE score but without very high (≥20) ACUITY-HORIZONS score (2.4% vs. 5.3%, <I>p</I> =0.03).</P> <P><B>Conclusions</B></P> <P>In patients with acute MI receiving DES, GRACE and ACUITY-HORIZONS scores may help guide DAPT. In patients with high GRACE score, a more potent P2Y12 blocker may be considered, particularly in the subset not at very high risk of bleeding.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Both ischemic and bleeding risks are correlated with mortality post-percutaneous coronary intervention. </LI> <LI> GRACE and ACUITY-HORIZONS scores may help guide dual antiplatelet therapy (DAPT) in patients with acute myocardial infarction (MI). </LI> <LI> The optimal DAPT regimen in Asian patients with acute MI needs to be determined. </LI> </UL> </P>
Sim, Tae Seok,Kwon, Kiho,Park, Jae Chan,Lee, Jeong-Gun,Jung, Hyo-Il Royal Society of Chemistry 2011 Lab on a chip Vol.11 No.1
<P>Previously we introduced a novel hydrodynamic method using a multi-orifice microchannel for size-based particle separation, which is called a multi-orifice flow fractionation (MOFF). The MOFF has several advantages such as continuous, non-intrusive, and minimal power consumption. However, it has a limitation that the recovery yield is relatively low. Although the recovery may be increased by adjusting parameters such as the Reynolds number and central collecting region, poor purity inevitably followed. We newly designed and fabricated a microfluidic channel for multi-stage multi-orifice flow fractionation (MS-MOFF), which is made by combining three multi-orifice segments, and consists of 3 inlets, 3 filters, 3 multi-orifice segments and 5 outlets. The structure and dimensions of the MS-MOFF were determined by the hydrodynamic principles to have constant Reynolds numbers at each multi-orifice segment. Polystyrene microspheres of two different sizes (7 μm and 15 μm) were tested. With this device, we made an attempt to improve recovery and minimize loss of purity by collecting and re-separating non-selected particles of the first separation. The final recovery successfully increased from 73.2% to 88.7% while the final purity slightly decreased from 91.4% to 89.1% (for 15 μm). These values were never achievable with the single-stage MOFF (SS-MOFF) having only one multi-orifice segment in our previous work. The MS-MOFF channel will be useful for clinical applications, such as separation of circulating tumor cells (CTC) or rare cells from human blood samples.</P> <P>Graphic Abstract</P><P>We introduce a novel hydrodynamic particle separation method using a Multistage-Multiorifice Flow Fractionation to overcome the technical limit derived from the reciprocal relationship between recovery and purity of a single MOFF. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c0lc00109k'> </P>
The Clinical Characteristics of Angioedema with Eosinophilia
( Hyo Jung Cho ),( Hye Soo Yoo ),( Mi Ae Kim ),( Yoo Seob Shin ),( Young Min Ye ),( Dong Ho Nahm ),( Joo Hee Kim ),( Jeong Hee Choi ),( Sun Young Park ),( Hae Sim Park ) 대한내과학회 2013 대한내과학회 추계학술발표논문집 Vol.2013 No.1
Angioedema with eosinophilia (AE) is a very rare allergy disease, case reports of which have been published sporadically since 1984. Here, we retrospectively analyzed the clinical features of 10 AE patients in Korea. Nine of the 10 subjects were young females, ranging from 23 to 38 years old. Twenty percent of the subjects had episodic-type AE with high serum IgM and eosinophil counts, while 80% were non-episodic type with normal serum IgM levels but high eosinophil counts. All patients had used systemic corticosteroids to control AE. One patient with refractory EAE was treated with anti-IgE antibody. This is the first study to evaluate the clinical characteristics of AE in a Korean population.
심효정,Sim, Hyo-Jeong 한국도서관협회 2004 圖協會報 Vol.45 No.5
이번 도서관문화 5월호에서는 한국도서관협회와 국립중앙도서관이 공동으로 주최하는 도서관 문화학교에 지난 4월 2일(금)과 9일(금)에 걸쳐 ‘책의 기원과 미래’의 주제로 특강을 한 천정환씨를 만나보았다.