현장클로즈업 - 대우 캐리어(주)

고영호,Go, Yeong-Ho 대한산업안전협회 2000 안전기술 Vol.25 No.-

자연기흉의 개흉술에 관한 임상적 고찰

고영호,손동섭,Go, Yeong-Ho,Son, Dong-Seop 대한흉부심장혈관외과학회 1993 Journal of Chest Surgery (J Chest Surg) Vol.26 No.6

A clinical evaluation was performed on 56 patients[ 60 cases ] of open thoracotomy in spontaneous pneumothorax who were admitted and treated at department of Thoracic and Cardiovascular Surgery, Chung Ang University, Yong San Hospital during the past 3 years from March 1990 to February 1993. The results were as follows. 1. The sex ratio was male predominence [ M:F = 7:1 ]. 2. The most common age group were 2nd, 3rd decades. 3. The most common chief complaints were dyspnea and chest pain [46.3% ]. 4. The etiologic factors of spontaneous pneumothorax were primary spontaneous pneumothorax [ 78.3%], secondary tuberculosis [ 18.3%], and others [ 3.4% ]. 5. The site of spontaneous pneumothorax was 50% in right, 40% in left, and 10% in both. 6. The state of activity on attack was almost in the usual life [ 98.3% ]. 7. Average height was 172.5 $\pm$ 5.39 cm in male and 164.0 $\pm$ 3.51 cm in female, average weight was 59.1 $\pm$ 7.06 kg in male and 52.0 $\pm$ 4.97 kg in female. 8. The common indications of open thoracotomy were recurrence [ 34.4% ] and persistent air leakage [ 17.8% ]. 9. The operative procedures were bullectomy [ 73.3% ], partial resection [ 11.7% ], lobectomy [ 11.7% ], and others [ 3.3% ]. 10. The most frequent location of bulla or bleb were apical segment of RUL [ 43.3 % ] and apicoposterior segment of LUL [ 40.0% ]. 11. The number of visible bulla or bleb were mainly 1 to 5, and size was about 1 to 3 cm.

지구성 트레이닝이 골격근 성장 유도 인자에 미치는 영향

고영호 ( Go Yeong Ho ),윤정수 ( Yun Jeong Su ),백인호 ( Baeg In Ho ),김재철 ( Kim Jae Cheol ) 한국운동영양학회 2002 Physical Activity and Nutrition (Phys Act Nutr) Vol.6 No.3

It was the aim of this study to investigate the expression of IGF-Ⅰ mRNA in the different fiber type and contractile property of skeletal muscle by endurance training. The male Sprague-Dawley rats underwent the treadmill running at the 55% of VO2 max (20m/min, 10°, 90min/day, 5days/week) during the 2, 4 and 8 weeks respectively. The expression of IGF-Ⅰ mRNA in gastrocnemius and soleus muscles were examined by quantitative Northern blotting. In the gastrocnemius and soleus IGF-Ⅰ mRNA level were increased after 2 weeks and 4 weeks endurance training and after 8weeks gradually decreased but higher than control group. These results indicate that the high expression of IGF-Ⅰ mRNA by endurance training may be contributing to the hypertrophy and regeneration response via the mobilization of satellite cells to provide increases in muscle DNA.

관상동맥 우회로 조성수술후 발생하는 심 방세동의 위험요인 분석

유경종,고영호,임상현,강면식,Yu, Gyeong-Jong,Go, Yeong-Ho,Im, Sang-Hyeon,Gang, Myeon-Sik 대한흉부심장혈관외과학회 1996 Journal of Chest Surgery (J Chest Surg) Vol.29 No.6

연세대학교심장혈관 센터에서는 1990년 1월 부터 1994년 12월까지 281명의 관상동맥 우회로수술을 시행하였으며 이중 수술전 심방세동이 있던 환자,판막질환 수술 및 심근경색의 합병증의 수술을 병행 하였던 환자 32명을 제외한 249명에 대해 수술전,수술시 및 수술후 심방세동 발생의 위험요인에 대해 분석하였다. 대상환자의 연령은 24세에서 78세 사이로 평균 58.2$\pm$9.)세 였으며,남자가 182명, 여자가 67명 이었 다. 제 1군에 속하는 환자는 38명(15%) 이 었고 제 2군에 속하는 환자는 211명(85%) 이었다. 수술후 심방 세동이 발생한 시간은 환자가 중환자실에 도착한 후 8시간에서 336시간 사이에 발생하여 평균 59.1 $\pm$56. 9 시간 이 었으며(median time : 48 hours), 정상 동 율동으로 돌아온 시간은 심방세동이 발생한 후 1시간 에서 144시간 사이로 평균 26.7 $\pm$33.9시간이었다(median time : 12.5 hours). 퇴원시 심방세동을 보였던 모든 환자는 정상 동율동을 보였다. 심방세동이 발생하기 전과 발생한 직후 측정한 심박출계수는 발생 전 평균 3.9$\pm$ 1.1 L/min/m.에서 발생직후 3.2$\pm$ 1.1 L/min/m'로 통계 학적으로 유의하게 감소하였다(p=0. 001). 분 \ulcorner嘯\ulcorner통계학적인 유의성을 가진 변수는 univariate analysis 에서 수술전 좌심실 박출계수, triglyceride 수치, 수술후 측정한 peak CKMB isoenzyme, 심방 pacing의 여부, 입원기간 및 만기사망이 었 다. 좌심실 박출계수(p=0.025), triglyceride 수치(p=0.006) 및 peak CKMB isoenzyme(p=0.002)은 낮은 경 우에 심방세동의 발생이 증가하였으며,심방 pacing을 찬 경우에 심방세동의 발생이 증가하였다(p=0. 001). 또한 심방세동이 발생한 군에서 입원기간이 길었으며(p=0.001), 만기사망이 많았다(p=0.033). Multivariate analysis 에서 통계학적인 유의성을 보이는 변수는 수술전 체중과 심방 pacing의 여부였다. 체중은 많이 나갈수록 심방세동의 발생 이 .증가하였으며(p=0.011), 심방 pacing을 한 경우에 심방세동의 발생이 증가하였다(p=0.001). Univariate 및 multivariate analysis 에서 환자의 나이는 통계학적인 유의성 을 보이지는 않았지만 나이가 증가할수록 심방세동의 발생이 증가하는 경향을 보여주고 있다(p=0.053, p=0.064). 평균 추적기간은 30.1 $\pm$ 15.4 개월이었으며, 추적율은 98%였다. 이 기간 동안 심방세동을 보일 예는 없었다. 연구결과 수술 \ulcorner발생하는 심방세동은 어느 한가지 요인에 의해서라기 보다는 여러가지 요인이복합 적으로 작용하여 나타나는 것으로 생각된다. 또한 수술후 나타나는 심방세동은 혈동학적 인 장애를 유발 할 뿐만 아니라 입원기간을 증가시키고, 만기사망을 증가시키므로 위험요소가 있거나 위험요소가 발생 시 적극적 인 예방이나 치료가 필요할 것으로 생각된다. A total of 249 patients undergoing isolated coronary revascularization were studied for the occurrence of postoperative atrial fibrillation(AF). Possible associations of this arrhythmia with various preoperative, intraoperative and postoperative factors were studied by univariate and multivariate analysis. The overall incidence of postoperative AF was 15%, with the median time occurence of 48 hours(mean time : 59.1 $\pm$ 56.9 hours) after arrival to the intensive care unit. Cardiac index decreased significantly after occurence of AF(p=0.001). There were no in-hospital complications in those patients with AF. Univariate studies indicated preoperative ejection fract on(EF), triglyceride level, postoperative peak CKMB isoenzpme and atrial pacing to be the dominant factor promoting postoperative AF, with an increasing prevalence in lower EF(p=0.025), triglyceride(p=0.006) and peak CKMB isoenzyme(p=0.002), and in patients with atrial pacing(p=0.001). Hospital stay(p=0.001) and late mortality(p=0.003) were significantly increased in patients with postoperative AF Multivariate analysis showed that body weight and postoperative atrial pacing to be the dominant factor promoting postoperative AF, with an increasing prevalence in over- weight patients(p=0.011) and patients with atrial pacing(p=0.001). Both univariate and multivariate analy- sis showed that the age was not a significant factor but tended to promote postoperative AF respectively (p=0.053, 0.064). After 30.1 $\pm$ 11.4 months gfollow-up, those patients with AF had sinus rhythm. We think that we must try to prevent postoperative AF after ccoronary artery bypass grafting because of its deleterio s hemodynamic effect, prolonged hospital stay, and increased late mortality.

블루베리에 처리한 살충제 Fenpyroximate 및 Fluxametamide의 잔류성 평가

박주언 ( Joo-un Park ),고영호 ( Young-ho Go ),임선영 ( Seon-yeong Lm ),송병훈 ( Byung-hoon Song ),이동진 ( Dong-jin Lee ) 한국환경농학회 2020 한국환경농학회 학술대회집 Vol.2020 No.-

블루베리 (Faccinium corymbosum L.)는 다년생 진달래과 작물로 관목 월귤류에 속하는 소면적 재배작물이다. 최근 매미나방 유충을 비롯한 충해 발생에 따른 피해가 증가하고 있어, 블루베리와 같은 활엽 작물에게는 치명적이다. 그러나 블루베리를 비롯한 소면적 재배작물들에 대한 농약의 사용과 잔류성에 관한 연구결과는 미홉한 실정이다. 이에 본 연구는 살충제 2종 Fenpyroximate 액 상수화제 및 Fluxametamide 유탁제를 살포하고 잔류성을 구명하여 잔류농약의 안전성 평가를 위한 기초자료로 활용하고자 수행하였다. 시험품종으로는 북부 하이부시계의 중만생종인 엘리자베스를 선정하여, 단국대학교 생명자원과학대학의 시설재배지에서 다음과 같이 약제를 살포하고 잔류성 시험을 실시하였다. 시험약제인 Fenpyroximate 5 % 액상수화제 및 Fluxametamide 4.5 % 유탁제를 7일 간격으로 2회 약제처리 한 후 0, 3, 5, 7, 14일차에 걸쳐 시료를 수확하였다. 수확한 시료는 꼭지를 제거하고 용매를 가하고 고속마쇄하여 농약성분을 추출한 다음 정제과정을 거쳐 HPLC/PDA로 분석하였다. 분석법에 의한 Fenpyroximate 및 Fluxametamide의 회수율은 각각 78.5 ~ 110.5 %, 86.5 ~ 113.3 %이었다. 검출한계는 2약제 모두 0.01 mg/kg이었으며 최소 검출량은 0.5 ng이었다. Fenpyroximate의 잔류량은 0 일차에서 0.11 ~ 0.13 mg/kg, 14 일차에서는 0.03 ~ 0.05 mg/kg이었고, Fluxametamide의 잔류량은 0 일차에서 0.37 ~ 0.39 mg/kg, 14일차에서는 0.10 ~ 0.11 mg/kg 이었다. 이 결과를 바탕으로 블루베리에 처리한 Fenpyroximate 및 Fluxametamide의 잔류성을 평가하여 안전사용기준과 잔류허용기준 설정의 기초자료로 활용될 수 있을 것으로 사료된다.

지구력 트레이닝시 근섬유의 수축 특성에 따른 HSP 70의 발현

윤정수 ( Yun Jeong Su ),고영호 ( Go Yeong Ho ),조형식 ( Jo Hyeong Sig ),김재철 ( Kim Jae Cheol ) 한국운동영양학회 2002 Physical Activity and Nutrition (Phys Act Nutr) Vol.6 No.3

It was the aim of this study to investigate the expression of MyoD andmyogenin protein in skeletal muscle by retraining. The male Sprague-Dawley rats underwent the treadmill running at the 55% of VO_(2) max (20m/min, 10°, 90min/day, 5days/week) during 2 weeks training, 4 weeks training, and 8 weeks training, respectively. The expression of HSP 70 in gastrocnemius and soleus muscles were examined by quantitative Western blotting. In the gastrocnemius higher than control. In the soleus increased in toe all group specifically, the higher in 8 weeks than other training groups. These results suggest that the HSPs plays importantly a role in the protection against the muscle damage and its exhibits different pattern in specific contractile property of the the skeletal muscle by the endurance training.

최대 유산소 운동 후 휴식 형태가 피로회복에 미치는 영향

高永鎬,金善鎬 全北大學校 敎育大學院 1995 敎育論叢 Vol.15 No.-

This study is to understand what break type after maximal aerobic exercise has an influence on lactic acid of the blood. Glucose, Ammonia, VO_2max, process of recovery of heart rate. To achieve this purpose, seven students(of In - Wueol high school in Nam - Wueon) were selected as doners. Some blood gathered from each other through four times, in resting, after maximal aerobic exercise, after break time(about ten minutes), finally Aerobic exercise after bread time, was not only compared with each other but also found out interrealtion of Lactic acid, Ammonia, and Glucose at break type after maximal aerobic exercise. The results through statistical analysis for these data were as follows. 1) In heart rate, there were not appeared significant for ten minutes recovery as break type after maximal aerobic exercise. But it showed lower numerial value( p 〈 0.01) in dynamic rest than in static one for the first part from 1 to 6 (minute) when exercise break time. 2) In exercising after break time, the maximum oxygen intake is much higher in dynamic rest than static one. 3) As the consistency of Glucose, there were no significant differences in after exercise, the ten minute recovery, next Aerobike exercise. 4) In recovery time after maximal aerobic exercise, the removal rate of Ammonia in the blood was relatively higher in dynamic rest, than static one (p〈0.01). In Aerobike exercise after than in static one (p〈0.01). 5) In recovery time after maximal aerobic exercise, the removal rate of Lactic acid in the blood ws relatively higher in dynamic rest than in static one (p〈0.01). 6) As break type after maximal aerobic exercise there were appeared significant interrelations between Lactic acid and Ammonia, besides much higher inter-relations in dynamic rest than in static one.