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전윤,차월석,권규혁,이동병 조선대학교 생산기술연구소 2000 生産技術硏究 Vol.22 No.1
In this study, we examined about effectives of the drug release by used glutaraldehyde amount and molecular weight varieties of chitosan in DDS. The release experiments of chitosan microspheres containing norfloxacin were operated in the phosphate buffer solutions of pH 7.4 and 37℃, and its results were as follows. In the linearly release time of drug, chitosan microspheres (Mw 190,000) of used glutaraldehyde 1 mL and 2 mL were 45 and 64 days, and chitosan microspheres (Mw 350,000) of used glutaralhyde 1 mL and 2 mL were 60 and 80 days relatively. These results showed more effective drug releases in the increments of molecular weight and glutaraldehyde In short, the formulation allows chitosan microspheres to suppress the burst effect of the drug release mechanism, which led to the controlled release pattern and microspheres
농약살포자 혈중 콜린에스테라제 활성도의 변화 및 농약성분
신동천,이순영,정상혁,원종욱,박종세,박송자 大韓産業醫學會 1994 대한직업환경의학회지 Vol.6 No.2
In order to ascertain the status of health damage among Korean farmers who spray pesticides regularly in summer, blood and urine samples were collected for 88 volunteers during July to September in 1990. Serum cholinesterase activity, parent compounds of pesticides in blood and urine, SGOT, SGPT, blood pressure, pulse rate were measured. The results were as follows; 1. Mean cholinesterase activity after spraying pesticides was significantly lower than that before spraying. While proportion of abnormal cholinesterase activity(<1990 U/L) group was 2.3% before spraying pesticides, the proportion of the group after spraying was 22.8%. 2. Cholinesterase activity were decreased over 50% in 14.7% of the subjects who can be classified into poisoning group 3. While pulse rate and blood pressure were slightly increased in poisoning group, those were significantly decreased in non-poisoning group. 4. Consecutive spraying of pesticide caused further reduction of cholinesterase activity. 5. Five parent compounds of pesticides frequently used during summer farming were analyzed using 106 blood samples. IBP in one sample and Isoprothiolane in four samples were detected. No parent compounds were detected in urine samples.
흡연습관이 운동습관이 혈중 총 콜레스테롤에 미치는 영향
조효숙,남형천,정동혁 한국스포츠리서치 2003 한국 스포츠 리서치 Vol.14 No.1
The purpose of this study is to suggest the direction for antismoking campaign, the appropriate training habits and control by investigating the effect of smoking habits and training habits to serum total cholesterol(STC). This investigation applied, to 520 healthy men, out-Patients at K hospital comprehensive health center in Sungbuk-Gu, Seoul with questionnaires, based on interview and self-report related to smoking habits and training habits. In this study the means and standard deviations for all items were calculated based on the data. The data verified through Independent Group t-test and Independent Group one way ANOVA with SPSS for Window Release 7.5. The significant level for verification of hypothesis was 5%. The result of this study are as follows: 1. The difference in level of STC in smoking group and non-smoking group. The smoking group contained higher level of STC by 23.31mg/dl, which was significantly different in statistics(p<.05). 2. The difference in level of STC in training group and non-training group. The training group contained higher level of STC by 27.72mg/dl, which was significantly different in statistics(p<.05). 3. The difference in level of STC in I group(non-smoking with training), II group(non-smoking with non-training), Ⅲgroup(smoking with training), IV group(smoking with non-training). The level of STC was lowest in I group and highest in Ⅳgroup, which was significantly different in statistics(p<.05). 4. The difference in level of STC in smoking with training group and smoking with non-training group by the amount of smoking per day and the duration of smoking. Regardless of the duration of smoking, the smoking with non-training group contained higher level of serum total cholesterol, which was significantly different in statistics(p<.05). In conclusion, training have an effect on the level of smoker's STC and smoking with non-training is a chief risk factor for disease related to STC. Considering the relation between smoking and training, smoking with training approved to be effective in decreasing the level of STC. Even for smokers with regular training or regular training or reducing the amount of smoking with regular training will be effective in preventing disease related to STC.
소화성 궤양에서 삼제 병합 요법의 저용량에 의한 Helicobacter pylori 제균률과 궤양 치유효과
김예리,박봉안,이재동,이종혁,김인숙,박형석,진춘조,김상윤,박의우 건국대학교 의과학연구소 2000 건국의과학학술지 Vol.10 No.-
Helicobacter pylori is the major cause of histologic chronic gastritis and is strongly associated with peptic ulcer disease, gastric cancer and lymphoma. Several recommendations for the management of the Helicobacter pylori infection have been developed. However, there has been no clear therapeutic regimen for the optimal treatment of Helicobacter pylori infection. This study was desinged to evaluate the eradication rate and the ulcer healing rate of the triple regimen with low-dose clarithromycin(0.5g/day) in peptic ulcer patients. Forty three patients with gastric ulcer(n=15) and duodenal ulcer(n=28) were enrolled. The patients were treated either with omeprazole 20mg b.i.d. amoxicillin 0.5g b.i.d. and clarithromycin 250mg b.i.d. (low-dose regimen group, n=29) or with omeprazole 20mg b.i.d., amoxicillin 1.0g b.i.d. and clarithromycin 0.5g b.i.d.(high-dose regimen group, n= 14) for 2 weeks. After 4 weeks, the patients were evaluated for the eradication of Helicobacter pylori and the healing of ulcer. And gastritis scores according to the Sydney system were evaluated before and after 4 weeks from the end of the triple regimen. There was no significant difference in the eradication rate and the ulcer healing rate between the low-dose regimen group, group and the high-does regimen group. In the low-does regimen group, the mean initial scores of chronic inflammation and activity were decreased after the eradication of Helicobacter pylori. In conclusion, the low-dose triple regimen is as effective as the high-dose triple regimen on the eradication of Helicobacter pylori and the ulcer healing rate in peptic ulcer disease.