Effects of Phenytoin and Diazepam on the Seizure Activity in the Cortical Dysplasia Animal Models

Kim, Si-Hyung,Choi, In-Sun,Cho, Jin-Hwa,Park, Eun-Ju,Jang, Il-Sung,Choi, Byung-Ju,Kim, Hyun-Jung,Kim, Young-Jin,Nam, Soon-Hyeun The Korean Academy of Oral Biology 2006 International Journal of Oral Biology Vol.31 No.2

Dysplasia-associated seizure disorders are markedly resistant to pharmacological intervention. Relatively little research has been conducted studying the effects of antiepileptic drugs(AEDs) on seizure activity in a rat model of dysplasia. We have used rats exposed to methylazoxymethanol acetate(MAM) in utero, an animal model featuring nodular heterotopia, to investigate the effects of AEDs in the dysplastic brain. Pilocarpine was used to induce acute seizure in MAM-exposed and age-matched vehicle-injucted control animals. Field potential recordings were used to monitor amplitude and numbers population spikes, and paired pulse inhibition in response to stimulation of commissural pathway. Two commonly used AEDs were tested: diazepam 5, 2.5mg/kg;phenytoin 40, 60mg/kg. Diazepam(DZP) and phenytoin(PHT) reduced the amplitude of population spike in control and MAM-exposed rats. However, the amplitude of population spike was nearly eliminated in control rats as compared to the MAM-exposed rats. Pharmaco-resistance was tested by measuring seizure latencies in awake rats after pilocarpine administration(320mg/kg, i.p.) with and without pretreatment with AEDs. Pre-treatment with PHT 60 mg prolonged seizure latency in control rats, but not in MAM-exposed animals. The main findings of this study are that acute seizures initiated in MAM-exposed rats are relatively resistant to standard AEDs assessed in vivo. These data suggest that animal model with cortical dysplasia can be used to screen the effects of potential AEDs.

부산지역 수돗물과 지하수의 중금속 농도

김준연,손지언,김형수,김두희,원미숙,김인식,이혜령 동아대학교 산업의학연구소 2000 산업의학연구소 논총 Vol.- No.5

This study investigated mean airborne CO concention of 15 workplaces, suspected of CO exposure and conducted self-reported questionnaire completion and indirect COHb concentration measure using Micro II Smokerlyzer to healthy 702 adult subjects from 1999 May to 1999 September in order to find a relation of CO exposure and occupational factors, socioeconomic factors, and health related behaviors and confirm the related conditions in the screening test for CO exposure. The results of this study were summarized as follows : 1. In the CO exposed and non exposed group, COHb concentrations of the smokers were 2.55±0.96% and 2.21±0.97% and that got a statistically significant difference, There were not statistically significant differences in the age and total smoking index. Passed times after the last smoking, Working time/day, and working duration were statistically significant difference (p〈0.05). 2. In the CO exposed and non exposed group, COHb concentrations of non-smoking group were 0.94±0.35% and 0.68±0.47% and that got a statistically significant difference. There were not statistically significant differences in the age and working duration but Working time/day was a statistically significant difference(p〈0.05). 3. In the CO exposed group, r-square of multiple regression of the smokers was 38.5 % and passed time after the last smoking, working time/day, and job category were statistically significant differences (p〈0.05). And r-square in the CO non-exposed group was 38.3 % and age, passed time after the last smoking, and total smoking index were statistically significant difference. 4. In the CO exposed group, r-square of multiple repression of the non-smokers was 66.3% and job category and airborne CO concentration were statistically significant differences(p〈0.05). But r-square of non-smokers in the CO non-exposed group was 1.0% and there was not a statistically significant difference(p〈0.05). 5. In the smokers of CO exposed and non exposed groups, relation of COHb concentration and passed time after the last smoking was expressed as exponential function, Y = 2.9182e-0.0083x and r-square of this function was 37.4%. Therefore it was more than 150 minutes that passed time after the last smoking was when COHb concentrations were measured as less than 1%. In conclusion, variable, that was statistically significant to COHb concentraion in the both CO exposed and non-exposed smokers, was a passed time after the last smoking. We suggest that you have to restrict the smoking of smokers at least 150 minutes in the exposed and non exposed group before COHb concentration measure in order to exclude smoking effects

유제놀에 의한 즉시형 알레르기 반응의 억제

김상현,신태용,김형룡,이영미,이은희,신보경,김윤철,안년형,김형민 우석대학교 의약품개발연구소 1996 藥學硏究誌 Vol.1 No.-

The current study evaluates the capacity of eugenol to regulate immediate allergic reaction by control of histamine release. Administrations of eugenol (1 M/kg. i.p.) at 60 min before and 5.10 min after the compound 48/80 treatment (8 mg/kg.i.p.) were shown the mortality rates as 0.44.4. and 77.8%. respectively. A 60 min before administered group revealed a singificant inhibition of serum his-tamine release compared with those of 5 and 10 min after the compound 48/80 injection. Eugenol (6-48mM) was also showed a dose-dependent activity on the compound 48/80-induced histamine release from the highly purified population of Alcian Blue-positive peritoneal mast cells. These results indicate that in vitro treatment with exogenous eugenol inhibited the active response of mast cell populations and modulated its characteristics.

Lidocaine 이 흰쥐 해마박편에서 CA 1 추체세포의 활성에 미치는 영향

김형룡,민승기,김대업,오상천,유형근,김은철,고건일,원진숙 원광대학교 생명공학연구소 1995 생명공학연구소보 Vol.3 No.1

대황황련해독탕의 항고지혈증 작용

김영석,정은아,장종철,양형길,김남재,조기호,배형섭,이경섭,김동현 경희대학교 동서의학연구소 2001 東西醫學硏究所 論文集 Vol.2001 No.-

Whangryunhaedok-Tang (WT) is formulated with Coptidis Rhizoma, Phellodendri Cortex, Scutellariae Radix and Gardeniae Fructus, and Daewhang-whangryunhaedok-Tang (DWT) is made by the combination of Rhei Rhizoma, a wellknown anticostipation drug in WT. Therefore, DWT has been evaluated for antihyperlipidemic effects on experimental hyperlipidemic rats and mice induced by corn oil and high cholesterol-diet. Oral administration of DWT significantly inhibited the increase of serum triglyceride and LDL-cholesterol levels, and the decrease of serum HDL-cholesterol levels in hyperlipidemic rats induced by corn oil. Also, oral administration of DWT significantly prevented the increase of serum total cholesterol, triglyceride and LDL-cholesterol, and liver total cholesterol and triglyceride in 1% cholesterol-diet fed mice. These results suggest that DWT is effective for the treatment of hyperlipidemia.

대황황련해독탕의 사염화탄소 유발 간장해 보호효과 미치 급성독성

김영석,정은아,장종철,양형길,김남재,조기호,배형섭,이경섭,김동현 WHO COLLABORATING CENTRE FOR TRADITIONAL MEDICINE 2002 東西醫學硏究所 論文集 Vol.2002 No.-

ABSTRACT - This study was performed to evaluate hepatoprotective effect of daewhang-whangryunhaedok-Tang(DWT) on liver injured rats induced by CCI_4 and the acute oral toxicity of it in mice. The activities of serum transaminase(ALT/AST), alkaline phosphatase(ALP) and lactic dehydrogenase(LDH), the levels of serum total cholesterol(TC) and triglyceride(TG), change of liver enlargement, and inhibitory activities of lipid perotidation, catalase and glutathione-S-transfrease(GST) in liver microsome were determined in hepatotoxic rats induced by CCI_4. DWT was significantly reduced the serum ALT, AST, ALP, LDH. TC and TG lecels. And, the increase of lipid peroxidation, decrease of catalase and GST activities in the liver microsome of CCI_4-intoxicated rat were significantly improved by the treatment of DWT. Male and female mice were administered maximum dosages of 5.000 mg/kg b.w. of DWT. After single oral administration of DWT to mice, we observed them daily for 2 weeks.DWT did not induce any toxic signs in the mortalitie, clinical signs, body weight changes, and gross necropsy finfings of mice. Based in these results. It is concluded that DWT may have the hepatoprotective effect on CCI_4 induced hepatotoxicity in rats. Also. DWT may have no side effect and its LD_50 value may be over 5.000mg/kg b.w. in mice.

Inhibition of Cytokine-Mediated Nitric Oxide Synthase Expression in Rat Insulinoma Cells by Scoparone

Kim#, Eun Kyung,Kwon#, Kang Beom,Lee, Ju Hyung,Park, Byung Hyun,Park, Jin Woo,Lee, Hern Koo,Jhee, Eun Chung,Yang, Jeong Yeh Pharmaceutical Society of Japan 2007 Biological & pharmaceutical bulletin Vol.30 No.2

<P>Cytokines produced by immune cells infiltrating pancreatic islets are important mediators of β-cell destruction in insulin-dependent diabetes mellitus. Scoparone (6,7-dimethoxycoumarin) is known to have a wide range of pharmacological properties <I>in vitro</I>. In this study, the effects of scoparone on cytokine-induced β-cell dysfunction were examined. Presence of scoparone significantly protected interleukin-1β (IL-1β) and interferon-γ (IFN-γ)-mediated cytotoxicity of RINm5F, a rat insulinoma cell line, and preserved glucose-stimulated insulin secretion in rat pancreatic islets. Scoparone also resulted in a significant reduction in IL-1β and IFN-γ-induced nitric oxide (NO) production, a finding that correlated well with reduced levels of the inducible form of NO synthase (iNOS) mRNA and protein. The molecular mechanism by which scoparone inhibited iNOS gene expression appeared to involve the inhibition of NF-κB activation. These results revealed the possible therapeutic value of scoparone for the prevention of diabetes mellitus progression.</P>

비만여중생에서 에어로빅스 운동에 따른 Leptin 농도와 혈청지질간의 상관관계

김주혁,김종인,김은희,김수진,김도형,장성동 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.3

The subjects of this study included 7 obese middle school girls aged 14 to 15 whose percent at was 35% or over and who were found having no diseases as a result of medical examinations, There's no significant change in Total Cholesterol between 170.7±34.81 before training and 169.0±32.31mg/㎗ after training Triglyceride was significantly decreased from 125.8±75.41 before training to 111.7±54.72.mg/㎗ after training(p<.01). HDL-C showed no significant change from 49.9±10.37 before training to 42.5±7.64mg/㎗ after training, Free Fat Acid was significantly increased from 623,3±176.07 before training to 695.7± 238.73μUq/l after training, Growth Hormone also showed a significant increase from 6.59± 5.29 before training to 9.17±4.24ng/㎖ after training(p<.05). Insluin showed a significant change from 22.3±6.08 to 16.8±4.84μ[U/㎖ between before and after training Lipoprotein Lipase was changed from 53.3±13.25 before training to 39.1±14.19ng/㎖ after training Finally, Leptin showed a change from 24.1±7.17 before training to 23.3±12.22ng/㎖ after training but with no significant difference. Concerning correlations between leptin and serum lipid, there were high correlations between total cholesterol and HDL-C and low between growth hormone and free fat acid, Lein was highly correlated with free fat acid and low with insulin.

입원 중인 베트남 참전 군인의 삶의 만족도와 관련된 요인

김애리,박종,김율,노희송,박광희,김은숙,김형철,홍강식,류소연,강명근,김기순 朝鮮大學校 附設 醫學硏究所 2007 The Medical Journal of Chosun University Vol.32 No.2

Background and Objectives: The aim of the study was to identify the factors associated with life satisfaction of hospitalized Vietnam veterans. Material and Methods: The data were collected from 200 hospitalized Vietnam veterans of 5 veterans hospitals in Korea from September 13 to 23, 2004. Information of general characteristics, health behavior, disease history, family function, depression and life satisfaction were collected by structured questionnaire. Results: The mean of life satisfaction was 21.48(±6.03), and the mean of depression was 53.10(±9.64). The prevalence of depression was mild depression 24.0%, moderate depression 43.5% and severe depression 25.0%. Depression was associated with life satisfaction and depression was higher, life satisfaction was lower. Family function and age were positively associated with life satisfaction, Conclusion: Life satisfaction was affected by depression and family function in hospitalized Vietnam veterans. Therefore, it was thought that psychosocial approaches such as improve depression and family function in care of hospitalized Vietnam veterans is required.

장기간의 에어로빅스 운동이 골형성 및 각종 호르몬과의 상관관계

김종인,김은희,김주혁,김수진,김도형,장성동 한국스포츠리서치 2004 한국 스포츠 리서치 Vol.15 No.3

Selected girl mid㎗e school of 14- and 15- years-old who got 35% body fat rate and are obese, and have them aerobics exercise for 20 weeks, the conclusion on the matter of change between Osteoporosis and Hormones showed. The contents of Calcium has significant difference(p<.05) between 9.38±0.34㎎/㎗ pre-exercise and 9.34±0.29㎎/㎗ post-exercise, and the contents of Glucose has significant difference (p<.05) between 78.0±5.38㎎/㎗ pre-exercise and 81.3±5.91㎎/㎗ post-exercise. parathyroid hormone (PTH) is shown as 11.2±3.06pg/㎖ at pre-exercise arid 13.8± 4.41pg/㎖ at post-exercise, hyperparathyroidism and osteoporosis (Osteocalcin) is shown as 6.04±3.56ng/㎖ at pre-exercise and 5.29±4.92ng/㎖ at post exercise, there is no significant difference. Deoxypyridinoline is shown as like 8.18±2.43nM/mMcre pre-exercise arid 9.97±2.76nM/mMcre post-exercise, Alkaline phosphatase (ALP), which has an effect on the born disease, is shown 229.7±61.66[U/㎖ pre-exercise and 224.3±8.27 [U/㎖ post-exercise, there is significant difference(p<.0l). There is significant difference (p<.05) between Growth Hormone and Parathyroid hormone(PTH) which is bone absorption hormone, the Osteocalcin which is the mark of born-formation, there is no significant difference among the index of born formation mark, lipid, and hormones.