혈중 감마지티피 상승의 임상적 의의

신주연,김용규,박신구,이지나,김환철,임종한,홍윤철 大韓産業醫學會 2005 대한직업환경의학회지 Vol.17 No.1

목적: 혈중 감마지티피는 주로 알코올 섭취와 간세포 손상의 지표로서 이용되어져 왔으나 최근에는 혈중 감마지티피가 체내의 산소성 스트레스를 민감하게 반영하는 지표이며, 혈중 감미지티피를 이용하여 만성질환의 발생을 조기에 예측할 수 있다는 주장들이 있다. 이에 본 연구에서는 일반 인구 집단을 대상으로 한 건강검진 자료를 분석하여 혈중 감마지티피의 상승에 영향을 미치는 요인들을 분석하고 혈중 감마지티피와 산소성 스트레스와의 관련성 및 임상적인 이용 가능성을 알아보고자 한다. 방법: 2001년부터 2003년까지 한 대학병원 산업의학과에서 건강검진을 실시한 15,546명을 대상으로 하였고 신체계측, 혈액검사 그리고 설문지의 정보를 분석하였다. 총 15,546명 중 남성은 9,660명 이었고 여성은 5,886명 이었다. 연령, 성별, 체질량지수, 흡연, 음주, 운동량 비타민 복용 여부에 따른 혈중 감마지티피의 평균을 분석하였고, 성별에 따른 다변량 분석을 실시하였다. 다변량 분석에는 연령, 체질량지수, 음주빈도, 흡연량, 혈색소, 이완기혈압, 공복시혈당, 총콜레스테롤, ALT를 포함하였다. 결과: 연구 대상자들의 혈중 감마지티피의 평균은 남성에서 평균(±2SD)이 47.51(±111.62)이었고, 여성에서는 19.09(±42.02) 으로서, 대체적으로 정상 범위에 있다고 보여 지나 개인차가 상당히 크다는 사실을 알 수 있었다. 다변량 분석의 결과에서는 혈중 감마지티피의 상승에 영향을 미치는 요인이 성별에 따라 다소 달랐으나 남녀 모두에게 연령, 음주빈도, 흡연량, 이완기혈압, 공복시혈당, 총콜레스테롤, ALT가 유의한 영향이 있음을 확인할 수 있었다. 그리고 다변량 로지스틱회귀분석의 결과에서 '임상적 비정상'을 예측함에 있어 혈중 감마지티피가 진단적 유용성이 있음을 확인하였다. 결론: 긴존에 일반적으로 알려져 있는 것처럼 혈중 감마지티피를 단순히 알코올 섭취와 간세포 손상의 지표로서만 볼 수 없으며, 성별, 연령, 흡연, 고지혈증, 당뇨, 고혈압 등 많은 다른 요인들에 의해서 영향을 받으며, 혈중 감마지티피를 산소성 스트레스를 반영하는 생물학적 지표로 해석할 수도 있다. 따라서 혈중 감마지티피의 상승을 임상적으로 해석할 때는 (비록 정상인 범위에 있다하더라도), 알코올 섭취나 간세포 손상 뿐 아니라 다른 여러 요인들을 함께 고려해야 한다. 더욱이 혈중 감미지티피의 상승을 만성질환 즉, 고혈압, 당뇨, 고지혈증 등의 발생을 조기에 발견할 수 있는 지표로서 임상영역이나 건강검진시 유용하게 활용할 수 있을 것이다. Objectives: Incresed gamma-glutamyltransferase (GGT) concentration has mainly been used as a biologic marker of alcohol drinking and liver diseases. However, some recent reports have suggested that serum GGT concentration may be an early biomarker of oxidative stress and associated with chronic diseases like hypertension, DM, hyperlipidemia, CHD, stroke etc. In this study, we analysed the factors associated with increased serum GGT level and evaluated the clinical application of serum GGT in predicting the risk of chronic diseases. Methods: The data were collected from 15,546 periodic health examinations, 9,660 males and 5,886 females, done at one university hospital from 2001 to 2003. We analysed self-questionnaire, physical examination and laboratory data. Statistical analyses(t-test, ANOVA, Pearson's correlation analysis, multiple regression analysis and logistic regression analysis) were done by SPSS for windows 10.0. Results: Mean serum GGT levels were quite different according to age, sex, BMI, smoking and alcohol drinking (all P-value <0.001), but were not different by regular vitamin intake or not (P-value = 0.117). There was significant correlation between serum GGT level and the variables (of age, BMI, blood pressure, Hb, fasting blood sugar, total cholesterol, AST and ALT) (all P-value <0.001). In sex-specific multiple regression analysis, increased serum GGT level was significantly associated with age, alcohol drinking, smoking, blood pressure, fasting blood sugar and ALT in males (all P-value <0.001), and with age, alcohol drinking, smoking, Hb, blood pressure, total cholesterol and ALT in females (all P-value <0.05). In sex-specific logistic regression analysis, increased serum GGT level was significantly associated with risk of 'clinical abnormalities'. This risk increased about 13-fold in males and 4.6-fold in females for serum GGT level over the third quatile, compared with under the first quartile. Conclusions: Serum GGT level is increased not only by alcohol drinking or liver diseases, but also by many other factors associated with chronic diseases and behavioral factors. Thus many factors should be considered in evaluating an increase in GGT level, even when within the upper normal range. Serum GGT level may be a predictor for the early development of chronic diseases.

중부지역 옥수수 파종기에 따른 생육단계 및 수량성 변화

서종호, 문중경, 정건호, 서민정, 구자환, 박장환, 배환희, 신성휴, 권영업 忠北大學校 農業科學硏究所 2014 農業科學硏究 Vol.30 No.2

Maize hybrids were planted on April 1, April 25, May 20 and June 15 in 2012, 2013 at the experimental paddy and upland fields in Suwon city , respectively to know changes of growth stage and yield according to different planting time. Maize planting on April 1 was not recommended because total growing days at planting on April 1 was not different with that at planting on April 25 due to many days from planting to emergence over 20 days at planting on April 1. Total growing days were not much different among three planting time after April 25 because days from silking to maturity was lengthened though days from planting to silking was shortened at later planting time. Stalk weight was decreased as planting time was delayed, particularly at planting times after May 20 at paddy field by excess water injury during early growth stage. But, grain yield was not low as in May and June. It is needed to introduce early maturity maize variety as Yanganok at late planting for higher grain yield and enough time for soil preparation for next winter crops

그루지아 민가의 전통 발효유에서 분리한 유산균의 이화학적 특성

신승이,최기춘,김종현,박정수,이영환 全南大學校 農業科學技術硏究所 1999 農業科學技術硏究 Vol.34 No.-

그루지아의 전통 발효유로부터 유산 생성과 항균성이 우수한 3주의 균주를 최종 분리, 선발하고 각각 Lactobacillus bulgaricus (L bulga G82), Lactobacillus acidophilus (L. acid G86), 그리고, Streptococcus thermophilus (S. thermo G90)로 동정하였다. 이들 유산균을 starter로 요구르트를 제조하여 이화학적 특성을 조사한 결과, pH는 4.0∼4.5의 범위를 보였으며, pH 4.0으로 L. acid G86 균주가 가장 낮게 나타났다. 또한 0.1N HCl에 대한 완충능은 4.50∼5.12ml, 0.1N NaOHdp 대한 완충능은 3.74∼4.98ml의 범위를 보였고, 3 균주 중 L acid G86 균주가 산-염기에 대하여 가장 높은 완충능을 나타내었다. 산도는 0.95∼1.16%, 점도는 1,984∼2,232 cps 그리고 생균수는 1.4x109∼3.0x109으로 조사 되었다. in vitro에서의 콜레스테롤 저하 정도는 L. acid G86 균주가 약 35%로 가장 높은 저하 정도를 보였고, L. bulga G82와 S. thermo G90 균주는 각각 약 32%, 24%이었다. Three strains of inhibitory lactic acid bacteria against pathogenic microorganism were isolated from traditional fermented milk of Georgia, and than, identified to be Lactobacillus bulgaricus (L bulga G82), Lactobacillus acidophilus (L acid G86) and Streptococcus thermophilus (S. thermo G90), respectively. These strains were used to starter for yogurts. So, we made yogurts, and evaluated their phyco-chemical properties. The range of pH value was 4.0∼4.5, and L. acid G86 strain was the lower pH value for 4,0. The buffer capacity against 0.1N HCI and 0.1N NaOH were 4,50~5.12ml and 3.74~4.98ml. The acidity, viscosity and viable cell counts of yogurt were 0.95∼1/16%, 1.984∼2,232 cps and 1.4x109∼3.0x109, respectively. Among the three strains, L. acid G86 strain was have the best ability of lowering cholesterol level in vitro, the value were about 35%. The L. bulga G82 and S. thermo G90 were around 32% and 24%, respectively.

저압 증발하의 열교환 특성에 관한 연구

신유식,이윤환,서종수,전영흥,정효민,정한식 경상대학교 해양산업연구소 2002 해양산업연구소보 Vol.15 No.-

The purpose of this research is to obtain the characteristics of heat transfer or heat exchange under the vacuum pressure. The general heat transfer or heat exchange can be changed with the experimental environment. In this report, the exothermic calorie and endothermic calorie were measured under the vacuum chamber. These two kinds of calories show the evaporative and condensing sides, respectively, and these calories were measured by using the parameter with flow rate.

淸州 新鳳洞出土遺物의 外來的 要素에 關한 一考 : 90B-1號塚을 中心으로

申鐘煥 嶺南考古學會 1996 嶺南考古學 Vol.- No.18

볼리비아 로즈목에 의한 다형홍반 양상을 보인 직업성 알레르기 접촉피부염 증례

신주연,홍윤철,임종한,박신구,이지나,김환철 大韓産業醫學會 2004 대한직업환경의학회지 Vol.16 No.2

배경 : 로즈목(rosewoods) 중 볼리비아 로즈목(Machaerium Scleroxyon)은 강력한 감작물질을 함유하고 있어서 외국에서는 이로 인한 자극 또는 알레르기 접촉피부염의 발생이 증가하고 있음에도 불구하고 지금까지 우리나라에서는 볼리비아 로즈목을 비롯한 수입목재에 의한 직업성 피부질환의 보고가 부족하였고, 이에 저자들이 볼리비아 로즈목에 의한 다형홍반 양상을 보인 직업성 알레르기 접촉피부염의 증례를 경험하였기에 보고하고자 한다. 증례 : 49세 남자로서 여러 가지 수입목재를 절단하고, 다듬는 작업을 하다가 소양감을 동반한 홍반성의 피부 증상이 발현되었고, 전신으로 증상부위가 확대되어 2주 동안 병원 입원 치료를 하게 되었으며, 이후 본원 산업의학과에서 피부첩포 검사 후 최종적으로 볼리비아 로즈목에 의한 알레르기 접촉피부염으로 확진되었다. 결론 : 수입목재들로 인한 직업성 피부질환 발생에 대한 광범위한 실테 조사가 필요하며, 이를 토대로 작업장에서의 직업성 피부질환의 발생을 감소시키기 위한 다각적인 예방, 관리 대책의 수립이 필요하다. Background: Woods are capable of causing allergic or irritant contact dermatitis which typically occurs on exposed areas. Because Bolivian rosewood exclusively contains the strong sensitizer R-3,4-dimethoxdalbergione, an increasing number of cases of initant and allergic contact dermatitis has been reported. Case report: A 49-year-old, male, wood worker, who handled a variety of woods, developed allergic contact dermatitis. A patch test confirmed a positive reaction to one of the exotic woods, Bolivian rosewood. Allergens found in Bolivian rosewood caused this patient's dermatitis, which cleared when he avoided &is wood. Conclusion: Exotic woods such as Bolivian rosewood can induce occupaiional contact dermatitis. Measures to lower the incidence of work-related dermatitis are needed in the workplace. Especially, when cutting or sanding woods, workers should wear proper personal protection.

대형 화재로 인한 사상자의 손상 유형과 합병증 : 동인천 라이브호프 화재를 중심으로

신중호,김재광,염석란,신종환,민순식,임용수,양혁준,이근,황성연 대한응급의학회 2001 대한응급의학회지 Vol.12 No.3

Background: High risks of fire alway exist for buildings in urban areas, especially those in downtown. Crowds, as well as more complex and larger structures, may cause more victims in the event of fire; therefore, emergency medical service plans must be established for such disastrous events. Methods: On the evening of October 30,1999, a fire broke out in downtown, Dong-Incheon Live-Hof restaurant; 56 people were killed and 76 were injured. Most of them were teenagers. We retrospectively reviewed the medical records of the victims, Results: 1) Among the 56 dead, 54 died from smoke inhalation, one from extensive burns, and one from sepsis during treatment. 2) Among the 76 injured, 70 patients suffered from smoke inhalation, 53 from burns, and 9 from several types of trauma (sprains, contusions, lacerations, abrasions, fractures, etc.). 3) Later complications were laryngeal edema, pulmonary edema, scar contracture, and hypoxic brain damage, and so forth. 4) Post traumatic stress syndrome was unexpectedly more prevalent in mildly to moderately injured survivors and witnesses than in seriously injured survivors. Conclusion: Many complications exist after a fire. Some may be resolved in time, but others may result in permanent sequelae. Early rescue, early triage, and early management during transport by emergency medical service (EMS) personnel can result in fewer complications and a lower mortality rate. Therefore, we propose the establishment of plans to be followed during various major disasters.

연속측정을 통한 오산천 상류의 수질 거동파악

신동환,최이송,박재영,오종민 경희대학교 2003 環境硏究 論文集 Vol.12 No.-

In this study, the variation of water quality in Aswan stream was investigated through continuous monitoring and matt balance and metabolism occurred into water body environment was estimated to set up effective management plan of small urban stream. Sated on the results, the rate of output to input (O/I rate. in the flux balance was 1.16 and about 16% sae increased between the section of OS1 ∼ OS3. Also, the SS and BOD loadings between the tame section were increased by 29% and 31%, respectively. Although increase of flux influenced on the increase of SS and BOD loading, it was judged that the larger part of o/I rate of pollutants comparing to O/I rate of flux was due to up-take from sediment on the riverbed. The contribution percentage of BS1 and BS2 for flux between the section of OS1 ∼ OS2 was 17.3%, total section was 31.3% (including BS3). However, the contribution of tributaries for SS, BOD and T-N loading wore 50.3%, 33.0% and 57.6%, respectively. Eventually tributaries contributed the pollution of water quality. To reduce pollution of water quality in the section of OS1 ∼ OS3, firstly, it need that effective management plan for tributaries mutt be set up to improve the water quality in main stream. Secondly, the counter plan for ro-eruptyon of pollutants from sediment in main-stream it required to prevent inner pollution. On this study, we showed that small urban stream can be managed effectively by simple investigation to prevent deterioration of water quality. also, it is more important that matter cycle and matt balance happening in the stream environment must be correctly estimated to make up healthy stream environment and to improve water quality.

게르마늄 내성효모의 성분분석

김경신,김덕숙,이명환,김종현,박원봉 서울여자대학교 자연과학연구소 1995 자연과학연구논문집 Vol.6 No.-

1. 게르마늄 내성효모는 64.0%의 높은 단백질을 함유하고 있었으며 일반효모보다 단백질의 함량이 증가하였으며, 지질, 총당, 환원당, 조다당의 함량도 감소, 또는 증가하는 등 차이가 있는 것으로 나타났다. 2. 게르마늄 내성효모의 총 지방산의 함량은 0.31㎍/g으로 일반효모보다 감소한 것을 알 수 있었으며 특히 포화 지방산의 함량은 현저히 감소하였다. 3. 내성효모균은 asparagine, glutamin acid, leucine의 함량 등의 아미노산 함량이 일반효모보다 증가하였으며, 일반효모균에 있던 cystein이 포함되지 않는 반면, 일반효모균에는 없었던 tyrosine이 포함되어 있는 것으로 나타났다. 4. 내성효모균 단백질의 Sephdex G-75 column과 DEAE-cellulose ion exchange column에 의한 분리 pattern을 일반효모균 단백질과 비교하여 보면, 큰 차이가 있는 것으로 나타났다. 이와같이 게르마늄 함유배지에 적응시킨 내성효모의 성분이 일반효모균의 성분과 차이가 있는 것은 게르마늄이 효모세포내에 흡착되어 유기 게르마늄을 생합성하는 과정에서 효모세포내의 다른 성분들의 생합성과정에 영향을 미치는 것으로 추측된다. A germanium-tolerant yeast was derived by a series of subcultures in the media containing increasing Ge0_2 concentrations and incubated in the medium containing GeO_2(80ppm). The proximate compositions, polysaccharides, fatty acids and amino acids of germanium-tolerant yeast were analyzed and compared with those of wild-type yeast. The protein of germanium-tolerant yeast was also fractionated by Sephadex G-75 column chromatography and DEAE-cellose ion exchange chromatography and compared with those of wild-type yeast.

윤곽검출용 CMOS 시각칩의 수평억제기능에 대한 해석

김정환,박대식,박종호,김경문,공재성,신장규,이민호 경북대학교 센서기술연구소 2002 센서技術學術大會論文集 Vol.13 No.1