• 제목/요약/키워드: acetic acid-induced

검색결과 421건 처리시간 0.027초

옥수수(Zea mays L.) 자엽초 절편에서 에틸렌 생성에 대한 오옥신의 작용 특성 (Specificity of Auxin Action on Ethylene Production in Corn Coleoptile Segments)

  • 윤인선
    • Journal of Plant Biology
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    • 제34권4호
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    • pp.325-330
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    • 1991
  • The ability of several auxin analogs to induce ethylene production was tested in the corn coleoptile. The synthetic auxins 1-naphthaleneacetic acid (1-NAA) and 2, 4-dichlorophenoxyacetic acid (2, 4-D) had strong stimulatory effects on ethylene induction surpassing that of IAA. Both 2-naphthalaneacetic acid (2-NAA) and 2, 6-dichlorophenoxy acetic acid (2, 6-D), structural analogs of these auxins, respectively, were found to be inactive. Treatment with NPA, a strong inhibitor of polar auxin transport, led to drastic increase in IAA-induced ethylene production while it has bo effect on ethylene production induced by 1-NAA. A positive correlative existed between intracellular auxin level and ethylene production.

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봉독약침요법(蜂毒藥鍼療法)이 항염(抗炎), 진통작용(鎭痛作用)에 미치는효능(效能)에 관(關)한 실험적연구(實驗的硏究) (An Experimental Study with Bee Venom Therapy on Anti-inflammatory and Analgesic Effects)

  • 권기록;고형균
    • Journal of Acupuncture Research
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    • 제15권2호
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    • pp.97-103
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    • 1998
  • Purpose: In order to study the anti-inflammatory and analgesic effects of Bee Venom Therapy, writhing syndrome, carrageenin induced edema, and complete adjuvant induced arthritis were experimented. Methods: 1. We used rats of writhing syndrom induced by acetic acid injection. Group I was treated with Acupuncture therapy. Group II was treated with Bee Venom thearpy. we compared with Group I, II and the control group. 2. We used rats of paw edema induced by carrageenin injection. Group I Was treated with Acupuncture therapy, Group II was treated with Bee Venom thearpy we compared with Group I, II and the control group. 3. We used rats of arthritis induced by Freud's complete adjuvant injection. Group I was treated with Acupuncture therapy, Group II was treated with Bee Venom thearpy we compared with GroupI,II and the control group. Results: 1. Analgesic effects on writhing syndrome induced by acetic acid injection showed statistical significance in Bee Venom treated group as compared with the control group. 2. The paw edema induced by carrageenin injection was decreased with statistical significance in Bee Venom treated group as compared with the control group. 3. The arthritis induced by Freud's complete adjuvant injection wasn't significant. Conclusion: Bee Venom Therapy was effective on inflammatory disease.

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중추신경계(中樞神經系)에 작용(作用)하는 양심탕(養心湯)의 실험중적(實驗中的) 연구(硏究) (An experimental study of Yangsymtang's effects on the activities of Central Nervous System)

  • 좌승호;이진용;김덕곤;정규만
    • 대한한방소아과학회지
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    • 제10권1호
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    • pp.245-263
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    • 1996
  • In order to investigate the effects of Yangsymtang on the activities of central nervous system, we observed the effects on convulsions induced by pentylenetetrazole, strychnine and picrotoxin. The sedative those on spontaneous motor activity and by rota rod method, the those on sleeping time induced by barbiturate and the alleviative those on pain induced by acetic acid and hind limb pressure also were analyzed. The results were as follows: 1. The solid extracts of Yangsymtang showed no anticonvulsive effects on convulsions induced by pentylenetetrazole, strychnine and picrotoxin. 2. As to the sedative effects by rota rod method, th solid extracts of Yangsymtang were recognized as significance(P<0.01). 3. The sleeping time induced by thiopental sodium was not prolonged by the oral administration of the solid extracts of Yangsymtang. 4. The oral administration of Yangsymtang did not influenced the sleeping induced by pentobarbital sodium significantly. 5. As to the effects on spontaneous motor activity, the oral administration of Yangsymtang made spontaneous motor activity decrease significantly(P<0.05). 6. The oral administration of Yangsymtang was significant on pain induced by acetic acid(P<0.001). 7. As to alleviative effects on pain induced by hind limb pressure. The solid extracts of Yangsymtang were not significant.

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오패산(烏貝散)과 보두(寶豆)의 병용투여(倂用投與)가 위장관(胃腸管)에 미치는 영향(影響) (Effect of BODUOPAESAN(BOS) on Gastrointestinal Tract)

  • 김태운;조종관
    • 대한한방내과학회지
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    • 제15권2호
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    • pp.27-36
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    • 1994
  • In order to investigate the effect of BODUOPAE-SAN(BOS), experiments were performed on analgesic effect induced by acetic acid, duration of hypnosis induced by pentobarbital-Na in mice and gastric ucler in Shay rats and indomethacin induced gastric ulcer, HCI-ethanol induced gastrci lesion in rats and gastric juice secretion in Shay rats. The results are as followings. 1. BOS showed significantly an analgesic effect induced by acetic acid. 2. BOS prolonged the duration of hypnosis induced by pentobarbital-Na in rats 3. BOS rised the spontaneous motility of isolatied ileum of mice temporarily. 4. BOS depressed the gastric motility of rats significantly. 5. BOS showed an anti-ulcer effect in Shay rats and indometacine-induced ulcer rats significantly. 6. BOS reduced the ulcer index of the HCl-ethanol induced gastric lesion in rats. 7. BOS reduced the gastric juice secretion in Shay rats. From above results think BOS is more effective in comparison to the OPAESAN alone on gastrointestinal disorder.

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광 알킬화 반응에 의한 Aspartylphenylalanyl Methyl Ester의 합성 (Photochemical Synthesis of Aspartylphenylalanyl Methyl Ester)

  • 심상철;채규호
    • 대한화학회지
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    • 제19권5호
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    • pp.367-374
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    • 1975
  • N-X-glycylphenylalanine methyl ester(X-trifluoroacetyl or acetyl)의 글리신잔기를 광 알킬화 반응에 의해 aspartic acid 의 유도체로 전환하였다. 이 반응은 diacetyl/di-t-butyl peroxide(DBP)를 광 개시제로, acetic anhydride를 알킬화제로 하여 350nm 파장의 램프를 사용하므로써 일어난다. DBP와 acetic anhydride에 의한 열반응의 경우에도 같은 알킬화 반응을 관찰하였다. 이 열알킬화 반응은 자유라디칼 반응을 거쳐 일어나기 때문에 이와 비교하여 광 알킬화 반응도 자유라디칼 메카니즘에 의해 일어난 것으로 추측된다.

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생강추출물의 항위염 . 항궤양 작용 (Antigastritic and Antiulcerative Action of the Extract of Zingiberis Rhizoma)

  • 양원경;정춘식;정기화;김재완;이은방
    • 약학회지
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    • 제36권2호
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    • pp.173-179
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    • 1992
  • The rhizoma of Zingiber officinale has been used as antiemetic, expectorants, stomachache relieving drugs and digestive accelerators. From the observation of antigastritic action of the methanol extract of the rhizoma, it was fractionated with hexane, chloroform, ethyl acetate and butanol, followed by bioassay on antigastritic and antiulcerative activity. The hexane and the chloroform fraction reduced significantly HCl ethanol induced gastric lesion at the dose of 370 and 210 mg/kg, p.o., respectively. On the gastric ulceration and gastric secretion in pylorus-ligated rats, the hexane fraction decreased the volume of gastric secretion and acid output, and also increased pH at the dose of 370 mg/kg, i.d.. It showed considerable curative ratio of acetic acid induced ulcer without inhibition of indomethacin induced gastric lesion. The methanol extract showed low acute toxicity with minimum lethal dose of more than 3000 mg/kg, p.o. in mice. In conclusion, Zingiberis rhizoma exhibited antigastric and antiulcerative activity which might be attributable to inhibition of gastric secretion. It is revealed that the active component may be present in the hexane fraction.

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Antinociceptive, Immunomodulatory and Antipyretic Activity of Nymphayol Isolated from Nymphaea stellata (Willd.) Flowers

  • Pandurangan, Subash-Babu;Paul, Antony Samy;Savarimuthu, Ignacimuthu;Ali, Alshatwi A
    • Biomolecules & Therapeutics
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    • 제21권5호
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    • pp.391-397
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    • 2013
  • In the present study, we aimed to analyze the antinociceptive, immunomodulatory and antipyretic activities of nymphayol were investigated in wistar rats and mice. Antinociceptive effect was evaluated by acetic acid induced writhing, formalin induced paw licking and hot-plate tests. Immunomodulatory activity was assessed by neutrophil adhesion test, humoral response to sheep red blood cells, delayed-type hypersensitivity, phagocytic activity and cyclophosphamide induced myelosuppression. Antipyretic activity was evaluated by yeast induced hyperthermia in rats. Nymphayol produced significant (p<0.05) antinociceptive activity in acetic acid induced writhing response and late phase of the formalin induced paw licking response. Pre-treatment with nymphayol (50 mg/kg, oral) evoked a significant increase in neutrophil adhesion to nylon fibres. The augmentation of humoral immune response to sheep red blood cells by nymphayol (50 mg/kg) was evidenced by increase in antibody titres in rats. Oral administration of nymphayol (50 mg/kg) to rats potentiated the delayed-type hypersensitivity reaction induced by sheep red blood cells. Treatment with nymphayol showed a significant (p<0.05) reduction in pyrexia in rats. The results suggest that nymphayol possesses potent anti-nociceptive, immunomodulatory and antipyretic activities.

The Joins (SKI 306X) study: Effects on Arachidonic acid metabolism pathway and other inflammatory mediators

  • Ryu, Keun-Ho;Jung, Ki-Won;Han, Chang-Kyun;Kwak, Wie-Jong;Cho, Yong-Baik
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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    • pp.143.2-144
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    • 2003
  • Joins (SKI 306X) is now clinically used for the treatment of osteoarthritis (OA). In previous reports, Joins a natural herbal product extracted from three herbs Clematis Radix. Trichosanthes Radix and Prunella Flos, was shown to have good analgesic and anti-inflammatory effects in several in vivo models. e.g., acetic acid-induced pain, carrageenan-induced paw edema and adjuvant-induced arthritis. (omitted)

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Effect of Butanol Fraction of Panax ginseng Head on Gastric Lesion and Ulcer

  • Jeong, Choon-Sik
    • Archives of Pharmacal Research
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    • 제25권1호
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    • pp.61-66
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    • 2002
  • From our previous result that Panax ginseng head extract had inhibition of gastric damages, the extract was fractionated. Among the hexane, chloroform, butanol and water fractions, butanol fraction Showed the most potent inhibition of HCl.ethanol-induced gastric lesion, aspirin-induced gastric ulcer, acetic acid-induced ulcer and Shay ulcer. Butanol fraction showed significant increase in mucin secretion, and inhibited malondialdehyde (MDA) and $H^{+}/K^{+}ATPase$ activity in the stomach. This results indicate that the effectiveness of the fraction on gastric damages might be related to inhibition of acid secretion, increment of mucin secretion and antioxidant property.

가미청비음이 알러지반응에 미치는 영향 (Effect of Kamichungbieum on Allergic Reaction)

  • 김광식;이동희;권영안;최서영;은재순
    • 동의생리병리학회지
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    • 제18권3호
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    • pp.857-862
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    • 2004
  • The purpose of this research was to investigate the effects of supercritical fluid extract of Kamichungbieum (SFE) on allergic reaction. SFE (500 mg/kg) inhibited the systemic anaphylaxis induced by compound 48/80 or platelet activating factor and inhibited the passive cutaneous anaphylaxis (PCA) induced by anti-dinitrophenyl (DNP)-lgE and DNP-human serum albumin (HSA) in vivo. Also, SFE inhibited the SRSC-induced delayed type hypersensitivity and inhibited the hind paw edema induced by histamine. In addition, SFE inhibited the permeability of evans blue induced by acetic acid and inhibited the writhing syndrome induced by acetic acid. These results indicate that SFE may be useful for the prevention and treatment of allergy related disease.