• Title/Summary/Keyword: Isolated rat ileum

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Effect of Alisols Isolated from Alisma orientale Jazep. Against Several Agonists in Isolated Rat Ileum (택사의 Alisol성분들이 몇가지 Agonist에 의한 적출장관 수축에 미치는 영향)

  • YunChoi, Hye-Sook;Chung, Sung-Hyun;Kim, Young-Sook
    • Korean Journal of Pharmacognosy
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    • v.12 no.4
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    • pp.200-202
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    • 1981
  • Alisol B(II) and alisol B monoacetate (III) isolated from the rhizome of Alisma orientale Jazepczuk (Alismataceae) showed antagonistic effects against the contractions induced by angiotensin and bradykinin in rat ileum. However, they seem to be nonspecific antagonism.

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The Screening of Biologically Active Plants in Korea Using Isolated Organ Preparation (IV) -Anticholinergic and Oxytocic Actions in Rat's Ileum and Uterus- (적출장기표본(摘出臟器標本)에 의한 국산생약(國産生藥)의 생리활성(生理活性) 검색(檢索) (IV) -흰쥐의 회장(回腸) 또는 자궁(子宮)에서의 항(抗)Acetylcholine 및 Oxytocin작용(作用)-)

  • Lee, Eun-Bang
    • Korean Journal of Pharmacognosy
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    • v.13 no.3
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    • pp.99-101
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    • 1982
  • The methanolic extracts of thirty-one medicinal plants were screened for anticholinergic and oxytocic activity in rat's ileum and uterus, respectively. In addition, their effects on the ileum and antagonism against oxytocin in the uterus were observed.

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The Screening of Biologically Active Plants in Korea Using Isolated Organ Preparation(V) -Anticholinergic and Oxytocic Actions in Rat's Ileum and Uterus- (적출장기표본(摘出臟器標本)에 의한 국산생약(國産生藥)의 생리활성(生理活性) 검색(檢索)(V) -흰쥐의 회장(回腸) 또는 자궁(子宮)에서의 항(抗) Acetylcholine 및 Oxytocin작용(作用)-)

  • Lee, Eun-Bang;Lee, Young-Soon
    • Korean Journal of Pharmacognosy
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    • v.22 no.4
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    • pp.246-248
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    • 1991
  • The methanolic extracts of forty-two medicinal plants were screened for direct effects on the isolated ileum and uterus and for anticholinergic and oxytocic effects on the respective organ preparation.

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The Screening of Biological Active Plants in Korea Using Isolated Organ Preparations (II) -Anticholinergic and Oxytocic Actions in the Ileum and Uterus- (적출장기표본(摘出臟器標本)에 의한 국산생약(國産生藥)의 생리활성(生理活性) 검색(檢索)(II) -회장(回腸) 또는 자궁(子宮)에서의 항(抗) Acetylcholine 및 Oxytocin작용(作用)-)

  • Woo, Won-Sick;Lee, Eun-Bang
    • Korean Journal of Pharmacognosy
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    • v.10 no.1
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    • pp.27-30
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    • 1979
  • The methanolic extracts of fifty medicinal plants were screened for anticholinergic and oxytocic activity in rat's ileum or uterus. In addition, their effect on the ileum and antagonism against oxytocin in the uterus were tested.

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General Pharmacology of Aspalatone (Aspalatone의 일반약리작용)

  • 이은방;조성익;천선아;장혜옥
    • Biomolecules & Therapeutics
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    • v.8 no.1
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    • pp.99-106
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    • 2000
  • Aspalatone [3-(2-methyl-4proponyl)]-2-acetyloxybenzoate, CAS 147249-33-0) is a compound having an antithrombotic action. General pharmacological properties of aspalatone were studied. Aspalatone had no effect on central nervous system and no anticonvulsant effect up to 1200 mg/kg p.o. However, the compound has hypothermic and analgesic effect. When administered intravenously in rabbits, aspalatone did not affect blood pressure, heat rate and respiration rate and depth, and it did not inhibit transient hypotensive effect of acetylcholine. The compound did not affect isolated guinea-pig ileum and tracheal strip at a concentration of 1${\times}$$10^{-4}$, and did not inhibit histamine-induced contraction of guinea-pig ileum. It also did not affect isolated rat stomach fundus and estrogenated rat uterus at 1${\times}$$10^{-4}$, and did not inhibit contraction produced by acetylcholine or oxytocin. The pupil size and intestinal propulsion were not influenced at a large dose of was shown. The compound showed a slight increase in urine volume and led to decreased excretion of potassium in urine of rats. The results suggest that aspalatone may have no considerable adverse effects in general pharmacological aspect.

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Pharmacological Studies on Butanol Fraction of Puerariae Radix (갈근 Butanol Fraction의 약리 작용에 관한 연구)

  • 허인회;이상준
    • YAKHAK HOEJI
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    • v.27 no.4
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    • pp.263-270
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    • 1983
  • Effective BuOH fraction was extracted from Puerariae radix (Pueraria thunbergiana), and several pharmacological activities were examined. From several pharmacological examinations, it was found that BuOH fraction has an antipyretic activity against typhoid vaccine pyrexia in rabbit, a papaverine-like antispasmodic activity on isolated ileum and jejunum of rat, an analgesic effects on mice treated by 0.7% HAc, and an anti-inflammatory activity of carrageenin edema in rat. It was found that BuOH fraction has detoxication effects on acute and subacute toxic rat induced by alcohol in consequence of biochemical tests of serum. Therefore it was considered that BuOH fraction has preventive and therapeutic effects in alcohol intoxication.

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Experimental Studies on the Efficacy of Socheongryoung-tang (小靑龍湯의 效能에 關한 實驗的 硏究)

  • An, Cheol
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.1 no.1
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    • pp.25-38
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    • 1988
  • In order to evaluate the relationship between the bibliographical and clinical effectiveness of Socheongryoungtang, this study was carried out to investigate the effects of Socheongryoungtang on the respiratory system, cardiovascular system and isolated organ in the experimental animals. The following results of Socheongryoungtang were obtained; 1. The relaxing effect on the muscular contraction of isolated ileum induced by acetylcholine chloride, barium chloride and histamine${\cdot}$2HCl was recognized in mice, rat and guinea-pig. 2. The effect of direct vasodilatation was noted in rabbit. 3. The effect of hypotensor was recognized in rabbit. 4. The antihistamine effect was noted on both isolated ileum and tracheal strip-chain in guinea-pig. 5. The inhibitory effect on gastric ulcer induced by histamine${\cdot}$2HCl was noted in rat. 6. The inhibitory effect on vascular permeability was revealed in mice. 7. The antitussive effect was recognized in both dog and cat. 8. The effect of expectorant was recognized in rabbit. According to the above results, we has recognized that Socheongryoungtang has good efficacy for bibliographical and clinical diseases caused from respiratory system (especially allergic rhinitis etc.), cardiovascular system and digestive system.

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A Pharmacogenomic Study on Regional Dependent gene Expression and Drug Permeability in Rat Intestine

  • Shin, Ho-Chul;Chung, Moon-Koo;Han, Sang-Seop;Duxin Sun;Gordon L. Amidon
    • Proceedings of the Korean Society of Toxicology Conference
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    • 2003.10b
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    • pp.155-156
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    • 2003
  • RNA was isolated from mucosal tissue of the duodenum, jejunum, ileum and colon after perfusion. The gene expression profiles were measured using Affymetrix GeneChip(R) analysis. Prodrug valacyclovir permeability was 5-fold and 2-fold higher than the parent drug acyclovir in the jejunum and ileum, respectively.(omitted)

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Species Differences in Affinity and Efficacy of Carbachol for Ileal Muscarinic Receptors

  • Lee, Shin-Woong;Kim, Joo-Yeon
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1995.04a
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    • pp.87-87
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    • 1995
  • The muscarinic effects of carbachol were compared on the isolated ileums of guinea-pig, rat and rabbit to elucidate the underlying mechanism of species differences in sensitivity for carbachol. The ED$\_$50/ value estimated on the guinea-pig ileum was 4 to 6-fold lower than those obtained on the rat and rabbit ileums, but the K$\_$A/ values of carbachol determined by functional assays were almost identical with 12-l7 ${\mu}$M in all of three ileums. The competition data of carbachol for [$^3$H]QNB binding were best described by a two-site model yielding the Ki values of 0.4-0.6${\mu}$M and 12-16${\mu}$M for high(K$\_$H/) and low(K$\_$L/) affinity sites, respectively. The low affinity dissociation constants(K$\_$L/) of carbachol determined from receptor binding studies thus were not significantly different from the K$\_$A/ values estimated from functional studies. The percentage of receptor occupation that carbachol requires for half-maximal response was approximately 3 to 5-fold lower in guinea-pig compared to rat and rabbit whereas the density of muscarinic binding sites per gram of ileum measured by [$^3$H]QNB saturation isotherms was two-fold higher in guinea-pig than that in rat and rabbit. Therefore, the numbers of muscarinic receptors occupied at ED$\_$50/ values of carbachol were about two-fold lower in guinea-pig, suggesting two-fold greater intrinsic efficacy. These results indicate that the guinea-pig ileum has higher muscarinic receptor density and greater intrinsic efficacy for carbachol than the rat and rabbit ileums.

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Effects of the Actindia chinensis on Loperamide-induced Constipation in Rat (제주산 참다래가 Loperamide로 유도된 변비에 미치는 영향)

  • Kim, Dong-Geon;Jin, Young-Geon;Jin, Ju-Youn;Kim, Sang-Cheol;Kim, Seong-Cheol;Han, Chang-Hoon;Lee, Young-Jae
    • Korean Journal of Plant Resources
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    • v.24 no.1
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    • pp.61-68
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    • 2011
  • Loperamide-induced constipation reduced gastric emptying, small-intestinal and colonic motility, and these effects were prevented by Actindia chinensis(Gold Kiwi Fruit, GKF). In this study, the effects of Actindia chinensis on constipated male Sprague-Dawley rats induced by loperamide(2 mg/kg, s.c.,5 days) were investigated. Rats were randomly assigned to the normal control rats(regular diet), constipated rats(regular diet plus loperamide), constipated rats treated with 2.5% GKF(regular diet supplemented with 2.5% GKF plus loperamide), constipated rats treated with 5% GKF (regular diet supplemented with 5% GKF plus loperamide). There was less fecal excretion and lower fecal water content in loperamide-treated rats than in control rats. Oral administration of GKF blocked the decrease of fecal excretion and fecal water content in the loperamide-treated rats. Mucus production of crypt cell and mucus contents at fecal and mucosa surface were reduced by loperamide-treated rat. But colonic crypt cell contained increased mucin in the GKF treated group and mucus layer stained with alcian blue was significantly thicker in GKF treated rats compared with in loperamide-treated rats. In isolated rat ileum, loperamide produced inhibition of ileal motility. Pretreatment with methanolic extracts of GKF in isolated rat ileum prevented inhibition by loperamide. These findings indicated that the GKF was effective for alleviation of inhibition of colonic peristalsis by loperamide and that GKF might be of value in the prevention of constipation.