• Title/Summary/Keyword: Hypothermic-effect

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General Pharmacology of Artemisia Extract Powder, DA-9601 (애엽 추출분획, DA-9601의 일반 약리작용)

  • 이은방;천선아;이은심;김옥경;고석태;유강준;신동숙;강선영;김순회
    • Biomolecules & Therapeutics
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    • v.4 no.2
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    • pp.174-183
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    • 1996
  • The general pharmacological properties of Artemisia extract powder (DA-9601) produced from Artemisia asiatica leaves were investigated in mice, rats, guinea pigs and rabbits. DA-9601 at the dose of 800 mg/kg po had no influences on general behaviour, barbital sleeping time and motor coordination of mice. The material at the oral dose of 800 mg/kg did exhibit neither analgesic action nor hypothermic effect. Anticonvulsant action, muscle relaxant action and the effect on intestinal propulsion were not identified at 800 mg/kg po. In the isolated ileum and trachea of guinea pig, the material did not show direct erect and inhibitory action of chemically or electrically stimulated contraction at the concentration of $2\times10^{-5}$g/ml. The sinus rates of atria and contractility of papillary muscle of guinea pig were not influenced by DA-9601 at a dose of $2\times10^{-5}$g/ml. No influences on blood pressure and respiration were observed at 40 mg/kg iv, in rabbits. However, transient decreases in blood pressure of rabbits were observed as given 120 mg/kg in iv route with slight respiratory depression, and slight diuretic effect could be found without any changes in $Na^+$ and $K^+$ excretion.

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Pharmacological Activities of Sesquiterpenes from the Rhizomes of Curcuma zedoaria (아출(莪朮)의 Sesquiterpene 성분의 약물활성)

  • Shin, Kuk-Hyun;Yoon, Ki-Young;Cho, Tae-Soon
    • Korean Journal of Pharmacognosy
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    • v.25 no.3
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    • pp.221-225
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    • 1994
  • Pharmacological activities of two sesquiterpenes, curzerenone(I), and curcumenol(II) isolated from the rhizomes of Curcuma zedoaria being used as an aromatic stomachic in Chinese medicines were evaluated in rats and mice. Curzerenone (I), at 100mg/kg, p.o. showed a potent protective effect against HCl-ethanol induced gastric lesion in rats, and curcumenol(II), at the same dose level showed a CNS depressant action characterized by a potentiation of hexobarbital(HB)-induced narcosis. Both compounds showed a moderate analgesic action but did not exhibit a hypothermic action even at 200mg/kg dose level.

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Genenal Pharmacological Action of Ginseng Preparation (인삼제제(人蔘製劑)의 일반약리(一般藥理)에 관(關)한 연구(硏究))

  • Shin, Sang-Chul;Han, Byung-Hoon
    • Journal of Pharmaceutical Investigation
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    • v.14 no.2
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    • pp.86-91
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    • 1984
  • A ginseng preparation (GP) consisting of ginseng ex., lycium fructus ex., four kinds of vitamines and caffein was evaluated for acute toxicity and general pharmacology. Average lethal doses $(LD_{50})$ of GP in male mice were 2,988mg/kg (i.p.) and more than 3g/kg (p.o.). In dosage of 300 and 900mg/kg (p.o.) showed no analgesic activity in both tests of the writhing method induced by acetic acid and of tail pressure method and no effect on the pentetrazole-induced convulsion. However, it appeared to have a hypothermic action only in dose of 900mg/kg. The duration of hypnosis induced by hexobarbital sodium in mice was shortened by GP, being probably due to caffein. GP Produced no marked contraction of isolated ileum and uterus in high concentrations of up to $1{\pm}10^{-3}g/ml$. These results suggested that GP did not show any considerable central nervous depressant activity and exhibited very weak actue toxicity in mice.

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General Pharmacology of Recombinant Human Growth Hormone Expressed in Saccharomyces cerevisiae (효모에서 발현된 유전자 재조합 인간 성장호르몬의 일반 약리작용)

  • Lee, Eun-Bang;Shin, Kuk-Hyun;Chung, Myung-Sook;Kim, Oon-Ja;Yoon, Ki-Young;Kim, Jung-Keun
    • YAKHAK HOEJI
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    • v.34 no.6
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    • pp.439-446
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    • 1990
  • The general pharmacological actions of recombinant human growth hormone (rHGH) were investigated. It had hypothermic action but neither sedative nor analgesic action. No pharmacological effects were observed in isolated guinea pig ileum and tracheal muscle and rat fundus and uterus. Slight hypotensive action with no effect on respiration was revealed at a dose of 20 IU/kg i.v. of rHGH in rabbits. The rHGH exhibited a weak inhibitory action of glucose tolerance in normal rats, significantly lowered the blood glucose contents in adrenalectomized rats 20 min after i.v. administration (80IU/kg), and produced a significant inhibitory effect on in vitro glycerol release in epinephrine-stimulated epididymal fat pad segments of rats.

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Isolation of Torilin from Torilis japonica Fruit and Its Analgesic and Anti-inflammatory Activities (사상자 중 Torilin의 분리 및 진통소염작용)

  • Cho, Sung-Ig;Kang, Sam-Sik;Kim, Kyung-Ran;Kim, Tae-Hee;Lee, Eun-Bang
    • Korean Journal of Pharmacognosy
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    • v.30 no.2
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    • pp.137-144
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    • 1999
  • Torilin was isolated from haxane fraction of Torilis Fructus extract. Torilin produced inhibition of the acetic acid-induced and phenylquinone-induced writhing syndrome at the oral doses of 30 and 90 mg/kg in mice. It also increased the pain threshold at the oral doses of 30, 90 and 270 mg/kg in the tail pressure method and the Randall-Selitto method. However, it did not show a hypothermic action at the oral doses of 30 and 90 mg/kg in mice. The compound exhibited strong anticarrageenan activity at the oral doses of 90 and 270 mg/kg in rats, and had inhibitory effect on the vascular permeability at the oral doses of 30 and 90 mg/kg in mice. It also showed potent inhibition of leucocyte emigration in CMC-pouch at the doses of 3 and 9 mg/rat, sc. The acute toxicity of torilin was very weak: the $LD_{50}$ values were more than 5000 mg/kg, po and 2000 mg/kg, ip in mice. From the above mentioned results, it was suggested that torilin had potent analgesic and anti-inflammatory activities.

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An experimental study on the myocardial protection effect of the steroid mixed cardioplegic solution (Steroid를 첨가한 Cardioplegic solution의 심근보호효과에 관한 실험적 연구)

  • 유시원
    • Journal of Chest Surgery
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    • v.17 no.4
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    • pp.565-573
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    • 1984
  • The increasing use of cardioplegic solution for the reduction of ischemic tissue injury requires that all cardioplegic solution be carefully assessed for any protective or damaging properties. This study describes functional assessment of the efficiency of steroid in cardioplegic solution by using a Langendorffs perfusion model. Isolated rat heart were subject to a 2 minute period of coronary infusion with the steroid mixed cold cardioplegic solution immediately before and also at the midpoint of a 60 minutes period of hypothermic [10\ulcorner\ulcorner] ischemic arrest. The result of this study were as follows: 1.Spontaneous heart beat after ischemic arrest occurred 14 second later Langendorffs reperfusion in the steroid mixed Young & GIK group and 16 second later in the control group. [Young & GIK without steroid] A good recovery state of spontaneous heart beat was shown in both groups. 2.The percentage of recoveries of heart rate during the 30 minute after postischemic Langendorffs reperfusion was; at first 5 minute 106.3\ulcorner.7% [P<0.05] in the steroid mixed Young & GIK group. This percentage of recovery of steroid mixed Young & GIK group was significantly greater than the control group during the first 5 minute course. 3.The percentage of recovery of coronary flow during the 30 minute after postischemic Langendorffs reperfusion was; at first 5 minute 101\ulcorner.2% in the steroid mixed Young & GI K group. This percentage of recovery of the steroid mixed Young & GIK group was not significantly than the control group during the first 5 minute.

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An experimental study on the myocardial protection effect of the methylprednisolone mixed GIK solution (Methylprednisolone을 첨가한 GIK용액의 심근보호효과에 관한 실험적 연구)

  • 유시원
    • Journal of Chest Surgery
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    • v.17 no.4
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    • pp.574-586
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    • 1984
  • Although corticosteroid have been shown to stabilize lysosomal membranes and prevent release of hydrolytic enzymes, the mechanism of membrane stabilization remains obscure. This study described functional assessment of efficiency of methylprednisolone in GIK solution by using a isolated Rat Heart Model. Isolated rat heart were subjected to a 2-minute period of coronary infusion with a cold GIK or methylprednisolone mixed cold GIK solution immediately before and also at the midpoint of a 60-minute period of hypothermic [$10{\pm}1^{\circ}C$] ischemic arrest. The result of this were as follow: 1.Spontaneous heart beat after ischemic arrest occurred 11 second later after Langendorffs reperfusion in the methylprednisolone mixed GIK group and 14 second later in the control group. 2.The percentage of recoveries of heart rate at 30 minute after postischemic working heart perfusion was 88.6\ulcorner.6% in the methylprednisolone mixed GIK group. This percentage of recovery was not significantly greater than the control group. 3.The percentage of heart function at 30 minute after postischemic working heart perfusion were; peak aortic pressure $90.8{\pm}4.5%$ coronary flow $87.5{\pm}1.45$ and aortic flow $74.9{\pm}11.8%$ in the methylprednisolone mixed GIK group. This percentage of recovery was significantly greater than the control group. [p<0.05]

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Effect of Heat Therapy to Superficial and Deep Body Temperatures according to Applying Dry and Moist Heats on Shoulder and Thigh (어깨와 대퇴부위에 건열과 습열 적용이 피부온도와 심부체온에 미치는 영향)

  • Lim, Nan-Young;Jeong, Hyeon-Cheol;Lee, Seung-Won;Kim, Woo-Jin
    • Journal of Korean Biological Nursing Science
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    • v.13 no.3
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    • pp.269-275
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    • 2011
  • Purpose: This study was designed to help preparing the evidence-based data for the manual of heat applications by finding the differences of superficial and core temperatures after applying dry and moist heats on shoulder and thigh. Methods: Moist and dry heats were alternately applied on the 33 subjects a day apart from May 15, 2010 through June 9, 2010. The experiment was conducted with $23^{\circ}C$ to $25^{\circ}C$ room temperature and 50% to 66% of moisture from 2 to 6 p.m. After heat was applied on the shoulder of the subjects wearing shorts and gowns for 30 minutes, their superficial and core temperatures were measured. The same method was used on the thigh after two hours. Results: Both superficial and core temperatures on the shoulder and thigh increased significantly after heat therapy. There was no significant difference between the temperatures before and after intervention according to applying methods and regions. Conclusion: This study provides a theoretical basis that a dry heat is a convenient nursing intervention for hypothermic patients.

Isolation of an Active Principle from Torilis Fructus and Its Pharmacological Activities

  • Lee, Eun-Bang;Cheon, Seon-Ah;Park, Seon-Kwan;Kim, Ra-Min;Lee, Dawei
    • Proceedings of the Korean Society of Applied Pharmacology
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    • 1998.11a
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    • pp.178-178
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    • 1998
  • We reported that the hexane fraction of Torilis Fructus have an anti-inflammatory and analgesic effect. Therefore, in order to isolate the active compound, the hexan fraction of Torilis Fructus was chromatographed on silica gel column. The subfraction of hexane fraction was crystallized as colorless stout needles. The chemical structure of this compound was verified to be torilin through m.p., UV, IR, GC-MS, and NMR spectral data. In pharmacological tests, torilin exhibited strong anticarrageenan activity at the dose of 90 and 270 mg/kg, p.o. in rats, and it had inhibitory effect on the vascular permeability at the dose of 30 and 90 mg/kg, p.o. in mice. Torilin showed potent inhibition of leucocyte emigration in CMC-pouch at the dose of 3 and 9 mg/rat, s.c. Torilin have the analgesic effect at the dose of 30, 90 and 270 mg/kg, p.o. in both of the acetic acid- and phenyl-p-benzoquinone-induced writhing syndrome. It also increased the pain threshold at the dose of 30, 90 and 270 mg/kg, p.o. in the tail pressure method and the Randall-Selitto method. Torilin did not show a hypothermic action at the dose of 30 and 90 mg/kg, p.o. in mice. The acute toxicity of torilin was very weak: the LD$\_$50/ value was more than 5000 mg/kg, p.o. and 2000 mg/kg, Lp. in mice. From the above mentioned results, it was suggested that torilin had potent anti-inflammatory and analgesic activities in animals.

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Circadian Rhythms of Melatonin, Thyroid-Stimulating Hormone and Body Temperature: Relationships among those Rhythms and Effect of Sleep-Wake Cycle

  • Kim, Mi-Seung;Lee, Hyun J.;Im, Wook-Bin
    • Animal cells and systems
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    • v.6 no.3
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    • pp.239-245
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    • 2002
  • Plasma melatonin, thyroid-stimulating hormone (TSH) and body temperature were measured simultaneously and continuously before and after the sleep-wake cycle was shifted in 4 healthy males and changes in the circadian rhythm itself and in the phase relationship among these circadian rhythms were determined. Normal sleep-wake cycle (sleep hours: 2300-0700) was delayed by 10 h (sleep hours: 0900-1700) during the experiment. Even after this shift the typical melatonin rhythm was maintained: low during daytime and high during night. The melatonin rhythm was gradually delayed day by day. The TSH rhythm was also maintained fundamentally during 3 consecutive days of altered sleep-wake cycle. The phase was also delayed gradually but remarkably. The daily rhythm of body temperature was changed by the alteration of sleep-wake cycle. The body temperature began to decrease at the similar clock time as in the control but the decline during night awake period was less steep and the lowered body temperature persisted during sleep. The hormonal profiles during the days of shifted sleep/wake cycle suggest that plasma melatonin and TSH rhythms are basically regulated by an endogenous biological clock. The parallel phase shift of melatonin and TSH upon the change in sleep-wake cycle suggests that a common unitary pacemaker probably regulates these two rhythms. The reversal phase relationship between body temperature and melatonin suggests that melatonin may have a hypothermic effect on body temperature. The altered body temperature rhythm suggests that the awake status during night may inhibit the circadian decrease in body temperature and that sleep sustains the lowered body temperature. It is probable but uncertain that there ave causal relationships among sleep, melatonin, TSH, and body temperature.