Changes in the Number of Exocrine Granules in Mouse Pancreatic Acinar Cells Induced by Acetylcholine and MNNG in vitro

조응행,최임순,Cho, Eng-Haeng,Choe, Rim-Soon Korean Society of Electron Microscopy 1988 Applied microscopy Vol.18 No.2

췌장비 acinar cell에서 자극-분비 반응 과정을 알아보기 위하여 전자현미경을 이용하였다. 분비 촉진 물질인 아세틸콜린이나 MNNG의 투여에 따른 세포내 반응이 세포의 형태적 변화로서 잘 나타났으며 특히 guanylate cyclase를 활성화시키는 것으로 알려진 MNNG는 투여 후 일정시간 뒤 세포내에 많은 분비물 과립의 형성을 유발하였다. 이러한 결과에서 볼때 췌장의 acinar cell을 아세틸콜린으로 자극할 경우 guanylate cyclase는 지속적 반응 단계의 초기에 분비에 가세하는 것으로 생각되었고 cycloheximide나 dibucaine은 지속적 반응을 억제하는 것으로 나타났다. 또 췌장의 acinar cell에서는 분비물 과립의 형성이 소포체에서 직접 이루어지는 것으로 생각되었다. The stimulation-secretion coupling in the pancreatic acinar cell have been studied by electron microscope. Morphological changes in the cells exhibited the cellular response induced by acetylcholine and MNNG. MNNG, a guanylate cyclase activator, induced the formation of numerous secretory granules in a period after the agent administration. This result suggest that guanylate cyclase potentiated the early sustained response in pancreatic acinar cells stimulated by acetylcholine. Cycloheximide and dibucaine reduced the secretory granules in number during sustained period. In pancreatic acinar cells, the secretion granules were considered to be directly packaged from cisternal space of endoplasmic reticulum.

숙지황이 고과당사료를 식이한 쥐의 혈액상에 미치는 영향

조응행 ( Eng Haeng Cho ),김윤상 ( Yun Sang Kim ) 대한본초학회 2003 大韓本草學會誌 Vol.18 No.1

N/A Objects : To investigate the effects of Rehmanniae Radix on the blood of rats, the effects of Rehmanniae Radix Preparat(RRP) on serum components was examined. Methods : Test group of male Sprague-Dawley rats was fed a fructose-rich(25 %; w/w) diet for 5 weeks. During the last 2 weeks the animals was orally administrated with the decoction prepared form RRP. Control group of rats was also fed a fructose-rich diet for 5 weeks, but administrated with saline during the last 2 weeks. Normal group was fed a normal diet for 5 weeks, and administrated with saline. And total cholesterol(Tc), triglyceride(TG), glucose, AST and ALT in serum were measured at 5 weeks on the fructose-rich diet. Results and Conclusion : The blood levels of Tc, TG, glucose of control group increased, and the activities of AST and ALT of test group decreased compared with those of normal group. The levels of Tc, TG, glucose of teat group decreased, and the activities of AST and ALT of test group increased compared with those of control group. These results suggested that RRP had some regulatory effects on the levels of blood components.

한국에 있어서의 'Kresek'에 관한 연구 I 'Kresek' 발생지의 병원균 균형 및 병징 재현에 관한 시험

최용철,조응행,정봉조,조용섭,유연현,Choi Yong Chull,Cho Eng Haeng,Chung Bong Jo,Cho Yong Sup,Yoo Yeon Hean 한국응용곤충학회 1977 한국식물보호학회지 Vol.16 No.1

우리나라에서 처음 발생되었던 Kresek에 과한 발생의 균형 및 재현에 관한 시험결과는 다음과 같았다. 흰빛잎마름병균에 의한 Kresek 현상은 주로 남부방인 전라남도 화순, 무안, 강진, 영암, 곡성, 광산, 경상남도 진양군에서 볼 수 있었다. Kresek 발생지의 병원균의 균형은 I, II, IV, V군에 의한 발생을 나타냈다. 3. Kresek이 가장 심하였던 화순군에서는 21균주중 17균주는 IV군, 2균주는 II군, 2균주는 V군이었으며 광산군의 5균주는 IV군dp 속하는 균주였다. 4. 화순군에서는 II, IV, V군이 혼재하고 있음을 볼 수 있었다. 5. Kresek 재현에 관한 시험에서는 접종 5일만에 발병을 볼 수 있었으며 뿌리 절단법에서 발병율이 현저히 높았고, 분무접종, 침접종에서도 발병을 볼 수 있었다. 6. 병원균농도가 높을수록 발병이 많았다. The 'Kresek' disease in Korea caused by Xanthomonas oryzae was first found from eight counties in Jeon-nam and Kyungnam province in 1976. The study has been carried mainly on the grouping of pathogens and reproduction of the symptoms on Milyang #23, the variety had shown severe damages at the fields, by using the isolates from Hwa-sun and Kwang-san counties where the first epidemics took place. 1. The 'Kresek' disease was found mainly on Milyang #23, a new variety, at Hwa-sun, Mu-an, Kang-jin. Yung-am, Gog-sung counties in Jeon-nam province and Jin-yang county in Kyung-nam province. 2. The groups of 'Kresek' causing pathogens were the same of those producing bacterial leaf blight symptoms such as group I , II, IN and V of Xanthomonas oryzae. 3. Seventeen out of 21 isolates from Hwa-sun county where the first and severe damage found belonged to group IV, 2 to group II and 2 to group V All of 5 isolates from Kwang-san county belonged to the group IN. 4. The 'Kresek' type symptom could reproduced within 5 days after inoculation to seedlings by using root tut, spray and needle inoculation methods. j. The most of effective method for the inoculation was root cut, and then were spray and needle method. respectively. The higher concentration of inoculum produced the higher disease incidence.

인공적혈구의 제조 및 이용

하종식,조응행,김구자,Hah, Jong-Sik,Cho, Eng-Haeng,Kim, Ku-Ja 대한생리학회 1990 대한생리학회지 Vol.24 No.1

Hemoglobin was purified from the outdated human red blood cells. Phospholipids were purified from egg yolk and stored in chloroform. The artificial red blood cells (hemosome) were prepared by encapsulation of hemoglobin with phospholipid mutilayer using rotary vacuum evaporator. The shape and size of hemosomes were measured by phase contrast microscope and image analyzer. The function of hemosomes was tested by measuring oxygen dissociation curve using blood gas analyzer. In order to test whether hemosomes are useful as blood substitute they were infused into rats of which one third of total blood were drawn. The results obtained are summarized at followings. 1) Hemosomes were spherical shape and their mean diameter was 0.7 um. 2) Oxygen dissociation curve of hemosomes showed the same figure as that of normal red blood cells. 3) All rats given 1/3 transfusion with hemosomes survived until sacrificed whereas three of four rats given 1/3 transfusion with saline died within 1 hour and the rest of them died within 24 hours.

The Inhibitory Effect of Dimethylsulfoxide on the Synthesis of Muscle Specific Protein during Chick Embryonic Myoblast Differentiation

Cho, Eng Haeng,Ha, Doo Bong,Choe, Rim Soon 연세대학교 자연과학연구소 1988 學術論文集 Vol.21 No.-

계배 근세포를 분리하여 배양하면서 근세포 분화기간 동안 몇 가지 근특이 단백질들의 합성에 대한 dimethyl sulfoxide (DMSO)의 억제 양상을 검토하였다. 전기영동겔상의 각 단백질 성분들을 densitometer로 scanning한 결과 DMSO를 처리한 구와 무처리구간에 비슷한 분포를 보였으나 근특이단백질인 actin과 myosin의 상대적 양은 현저한 차이를 보였는데 이것은 근세포 분화기간 동안 총단백질의 합성이 DMSO를 처리한 세포에서 감소한 때문이라고 보여지며 그 결과 근세포 융합이 억제된 것이라고 생각된다. 그외에 아세틸콜린 수용체와 creatine phosphokinase도 또한 DMSO에 의하여 그 합성이 억제된 것을 볼 수 있었으며 배양액에서 DMSO를 제거 하였을 때 근세포 융합이나 총단백질 합성량 및 아세틸콜린 수용체의 합성은 다시 증가하였고 무처리 상태 가까이 회복되었다. The pattern of inhibition by DMSO on several muscle specific proteins synthesis during myogenesis was studied. The profiles of protein in densitometric scans on SDS-polyacrylamide electrophoresis gel showed similar pattern in DMSO treatment and untreatment. But the amount of actin and myosin in the densitometric peak was revealed significant difference. Therefore, it seemed to be that total protein synthesis during muscle cell differentiation was decreased in DMSO-arrested cells, and this resulted in inhibition of cell fusion phenotypically. The synthesis of other proteins, acetylcholicne receptor and creatine phosphokinase, was also decreased by DMSO. The inhibition of total protein and acetylcholine receptor by DMSO was reversed and cell fusion was restored nearly to control in 2-days after DMSO removal.

稻熱病菌(Piricularia oryzae)이 分泌한 β-Glucosidase의 精製 및 그 性質에 關한 硏究

趙應行,金銀壽 연세대학교 자연과학연구소 1981 學術論文集 Vol.8 No.-

稻熱病菌(Piricularia oryzae)의 T-race로부터 Chromatography 方法을 利用하여 部分 純化된 β-glucosidase가 보인 基質 salicin 및 cellobiose에 對한 最適 反應溫度는 55℃이었으며 最適 PH는 4.0∼4.5이였고 이 두 가지 基質에 對한 Km 값은 salicin에 對하여 5.3mM, cellobiose에 4.8mM이었고 Hg^++에 依한 Ki값은 salicin에서 3.6×10^-4M, cellobiose에 8.4×10^-4M이었으며 Sephadex G-200 Column Chromatography를 利用하여 測定한 이 酵素의 分子量은 240,000이였다. 몇 가지 金屬이온과 SDS가 이 酵素의 活性에 影響을 주는 것을 볼 수 있었는데 1mM 濃度에서 Ca^++나 Co^++는 酵素活性을 若干 增加시켰고 反面 Mn^++, Cu^++ 및 Hg^++는 抑制하는 것을 볼 수 있었는데 純化過程에서 同一한 蛋白質로 나타난 이 酵素는 그 Km이나 Ki값에서 볼 수 있듯이 두 가지의 基質 즉 salicin과 cellobiose에 對하여 그 親和性이 다른 것을 알 수 있었다. A tenfold purified β-glucosidase isolated from the T-race of Piricularia oryzae was optimally active at 55℃ on both salicin and cellobiose. The optimum pH of the enzyme activity was at 4.0∼4.5 on both substrates. The Km values of the enzyme estimated using salicin and cellobiose were 5.3mM and 4.8mM respectively. The Ki values of the enzyme estimated for Hg^++ were 3.6×10^-4M on salicin and 8.4×10^-4M on cellobiose. The molecular weight of β-glucosidase measured on the Sephadex G-200 column chromatography was around 240,000. A number of metal ions and SDS were found to influence the enzyme activity at 1mM concentration on both sustrates; ions such as Ca^++ and Co^++ appeared to enhance the enzyme activity, whereas Mn^++, Cu^++ and Hg^++ were found to slightly inhibit its activity. From the data obtained in the present experiment the β-glucosidase isolated was a single protein which works on both salicin and cellobiose with different affinity on both substrates as it was evidenced by such physical data as Km and Ki.

人蔘 成分이 Pepsinogen의 分泌에 미치는 影響

鄭魯八,金世昌,趙應行 연세대학교 대학원 1985 延世論叢 Vol.21 No.3

Abstract The effects of ginseng components on pepsinogen secretion in isolated rabbit gastric glands were studied. In the release groups the pepsinogen secretion was increased at 10-1% and 100% concentration of total saponin, and 10-1% concentration of diol- and trios-saponin significantly by 240%, but did not show any significant change of pepsinogen secretion at the 10-2%, 103% of total saponin, diol- and trios-saponin. In the synthesis groups the pepsinogen secretion was inscreased by 20% at 10-1% and 100% concentration of three ginseng components and showed same level of control at lower concentration but these all values were not significant.

비만 치료 및 예방에 대한 한약의 효능 연구 (4)

金連燮,卞晟僖,金相贊,國萬,趙應行 대한본초학회 2000 大韓本草學會誌 Vol.15 No.2

We had experiment with five herb in order to find cure and prevention effects on the obesity. We fed control group rats high fat diet(Harlan, USA) and administered normal saline during 8 weeks, and experimental group rats high fat diet(Harlan, USA) and administered five herbal extract during 8 weeks. The results were as follows; 1. The body weight of all experimental group decreased than control group. 2. The average size of the epididymal fat cells in all experimental group decreased than control group but only Zeae Stigma and Crataegi Fructus group showed statistically significant difference with control group. 3. The fat drops area of hepatic lobule in all experimental group decreased than control group but Plantaginis Semen, Zeae Stigma and Crataegi Fructus group showed statistically significant difference with control group. 4. The area % of the insulin granules in Langerhans islet of all experimental group showed no difference with control group.

비만 치료 및 예방에 대한 한약의 효능 연구 ( Ⅷ )

金蓮燮,卞晟僖,金相贊,國萬,趙鷹行 대한본초학회 2001 大韓本草學會誌 Vol.16 No.2

Objects : We had experiment with Chekamhanghyuluiiin plus Zeae Stigma in order to find effects on cure and prevention of the obesity. Methods : We fed control group rats high fat diet(Harlan, U.S.A.) and administered normal saline during 8 weeks, and experimental group rats high fat diet(Harlan, USA) and administered Chekamhanghyuluiiin plus Zeae Stigma extract during 8 weeks. Results : 1. The body weight of all experimental group decreased than control group. 2. The average size of the epididymal fat cells in all experimental group decreased than control group but only 7CH5 group showed statistically significant difference with control group. 3. The fat drops area of hepatic lobule in all experimental group decreased than control group but 4CH10, 7CH5 and 7CH10 group showed statistically significant difference with control group. 4. The area % of the insulin granules in Langerhans islet of 7CH5 and 7CH10 group showed difference with control group. Conclusion : Chekamhanghyuluiiin plus Zeae Stigma could be effective for the obesity.

비만 치료 및 예방에 대한 한약의 효능 연구(Ⅱ) : 4종 처방이 비만 흰쥐의 면역조직화학적 변화에 미치는 영향

金蓮燮,卞晟僖,徐富一,金相贊,國萬,趙應行 대한본초학회 2000 大韓本草學會誌 Vol.15 No.1

We had experiment with several prescriptions in order to find cure and prevention effects for an obesity. We fed control gmup rats high fat diet and administered normal saline for Bweeb. And we fed experimental gmup ram high fat diet and administered exmct of four prescriptions for Bweek. The result were as follows: 1. The size of the epididymal fat cell of rats in Bikam-whan, Chekamhanghyuluiyiin-rang and Chekambohyulansin-tang groups showed a significant decrease in comparison with control group. 2. The fat drops area in hepatic lobule of rats in Bikam-whan, Cheknmhanghyuluiyiin-rang, Chekambohyulonrin-tang, and Chekambangpungrongseong-san groups showed a significant decrease in comparison with control group. 3. The area of the insulin granuls in islet of rats in Bikam-who4 Chekamhnnghyuluiyiin-tang and Chekambohyulonrin-tong group showed a significant decrease in comparison with control group. According to above these results, Bikam-whan. Cheknmhonghyuluiviin-tnng and Chekambohyulonrin-tang have shown to be capable of cure and prevent for an obesty.