• Title/Summary/Keyword: analgesic agents

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Effect of Solanum lyratum Extract on Dimethylniatrosamine-Induced Liver Damage in Rats (Dimethylnitrosamine에 의해 유도된 흰쥐 간독성에 대한 배풍등 추출물의 보호효과)

  • Shin, Mi-Ok;Park, Jong-Hee;Moon, Jeon-Ok
    • Korean Journal of Pharmacognosy
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    • v.34 no.1 s.132
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    • pp.60-64
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    • 2003
  • Solanum lyratum(Solanaceae) has been used as a traditional analgesic, antipyretic and hepatoprotective agents in Korea. In this study, we investigated the hepatoprotective effect of ethylacetate extract of Solanum lyratum (SL) on the dimethylnitrosamine (DMN)-induced liver damage in rats. Oral administration of SL (150, 300 mg/kg daily for 4 weeks) into the DMN-treated rats remarkably prevented the elevation of serum alanine transaminase, aspartate transaminase and alkaline phosphatase levels. SL also increased serum protein level and reduced the hepatic level of malondialdehyde in DMN-treated rats. Furthermore, DMN-induced elevation of hydroxyproline content was reduced by the treatment of SL. In conclusion, these results demonstrated that SL exhibited in vivo hepatoprotective effect against DMN-induced liver injury, and suggest that SL may be useful in the prevention of liver damage.

Effect of Solanum Iyratum Extract on Dimethylnitrosamine-Induced Liver Damage in Rats

  • Shin, Mi-Ok;Park, Jong-Hee;Yoon, Sik;Moon, Jeon-Ok
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.179.3-180
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    • 2003
  • Solanum lyratum (Solanaceae) has been used as a traditional analgesic, antipyretic and hepatoprotective agents in Korea. In this study, we investigated the hepatoprotective effect of ethylacetate extract of Solanum lyratum (SL) on the dimethylnitrosamine (DMN)-induced liver damage in rats. Oral administration of SL (150, 300 mg/kg daily for 4 weeks) into the DMN-treated rats remarkably prevented the elevation of serum alanine transaminase, aspartate transaminase and alkaline phosphatase levels. (omitted)

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Changes in bispectral index score and cardiorespiratory function under constant rate infusion with alfaxalone in dogs

  • Yun, Sungho;Kwon, Young-Sam
    • Korean Journal of Veterinary Research
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    • v.56 no.3
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    • pp.133-137
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    • 2016
  • Changes in the cardiovascular and bispectral index score were evaluated in dogs subjected to constant rate infusion (CRI) with alfaxalone. Fifteen dogs were assigned to three groups of 5. Groups and doses of alfaxalone were as follows: group 1, 3 mg/kg for induction and 6 mg/kg/h for CRI; group 2, 3 mg/kg for induction and 8 mg/kg/h for CRI; and group 3, 3 mg/kg for induction and 10 mg/kg/h for CRI. CRI was maintained for 1 h. Respiratory rates and blood pressures showed minimal changes; however, mild tachycardia and mild hypoxemia occurred, especially in group 3. There were some disparities between bispectral index score, electromyography and pedal withdrawal reflex test when measuring anesthetic depth. Additional premedications and/or analgesic agents would be helpful to avoid adverse effects of alfaxalone and provide improved cardiopulmonary functions.

Intraspinal Neurolytic Block for the Treatment of Cancer Pain (암성통증에 대한 척추내 신경 파괴제요법)

  • Choe, Huhn;Choe, Hyun-Kyu;Kim, Dong-Chan;Han, Young-Jin
    • The Korean Journal of Pain
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    • v.4 no.1
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    • pp.31-36
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    • 1991
  • Intraspinal alcohol or phenol administration has been used for the treatment of intractable pain due to terminal cancer. It has been alleged to produce good pain relief with minimal complication if performed carefully. We analysed 35 patients who received epidural or subarachnoid neurolytic block out of 83 patients with malignancy who were referrecl to our pain clinic. Most of the patients needed additional treatment modalities including epidural catheterization or systemic narcotic administration. The incidence of complication was high, especially when the neurolytic agents were administered in the lumbar region. This suggest that intraspinal neurolytic block is unreliable and unsafe, although it may temporarily reduce the analgesic requirement.

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Phenolic Compounds from the Bark of Salix gilgiana (내버들 수피의 페놀 성분)

  • 황완균;장영수;김일혁
    • YAKHAK HOEJI
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    • v.39 no.2
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    • pp.193-199
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    • 1995
  • For the investigation medicinal resources for Salix species, the studies were carried out to evaluate the pharmaco-constituents in the bark of Salix gilgiana (Salicaceae) which have been used as anti-inflammation, analgesic and diuretic agents in folk remedies in Korea. From aqueous fraction of the MeOH extract, (+)-catechin(l), 1-O-p-coumaroyl glucoside(II), 1-O-feruloyl glucoside(III) and p-hydroxyacetophenone glucoside(IV) were isolated by column chromatographic separation using Amberlite XAD-2, ODS-gel and Sephadex LH-20 and the structure of these compounds were elucidated by physico-chemical evidence($^{1}$H-NMR, $^{13}$C-NMR, IR, El-Mass and G.C.) and by comparison with authentic samples.

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Anti-diabetic Agents from Medicinal Plants Inhibitory Activity of Schizonepeta tenuifolia Spikes on the Diabetogenesis by Streptozotocin in Mice

  • Kim, Chang-Jong;Lim, Jung-Sik;Cho, Seung-Kil
    • Archives of Pharmacal Research
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    • v.19 no.6
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    • pp.441-446
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    • 1996
  • The Schizonepeta tenuifolia spikes (STS) have been used as a traditional folk medicine for antiinflammatory, analgesic, anti-pyretic and anti-spasmodic purpose in Korea. Phytosterols (mixture of campesterol 3.68%, stigmasterol 2.30% and ${\beta}$-sitosterol 94.02%) and hesperidin were isolated by chromatography from ether and n-BuOH fractions of STS respectively. These compounds significantly reduced the blood glucose level and lessened the loss of body weight and water consumption dose-dependently when administered at a i.p. doses of 10 and 20 mg/kg for 4 days after the i.v. injection of streptozotocin (I 80 mg/kg). In the morphologic study, these compounds showed protective activity on the pancreatic islets, especially .betha.-cells, from the degenerative changes by streptozotocin.

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Pharmacology of novel vanilloid receptor antagonists

  • Park, Jin-Kyu;Yi, Jung-Bum;Koh, Hyun-Ju;Jeong, Yeon-Su;Lim, Kyung-Min;Moh, Joo-Hyun;Suh, Young-Ger;Oh, Uh-Taek;Kim, Hee-Doo;Park, Hyeung-Geun;Park, Young-Ho
    • Proceedings of the PSK Conference
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    • 2002.10a
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    • pp.251.1-251.1
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    • 2002
  • Capsaicin and analogues are valuable analgesic agents when administered to mammals. including humans. However. their pungency. hypothermia and the effects on the cardiovascular and respiratory systems through their general activation of primary afferents severely limit their use. So competitive antagonists have been pursued as a novel pharmacological agent for analgesics. rather than agonists. We have identified a new class of potent and selective vanilloid receptor (VR) antagonists. (omitted)

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Analgesic and anti-inflammatory effects of galangin: a potential pathway to inhibit transient receptor potential vanilloid 1 receptor activation

  • Kaiwen Lin;Datian Fu;Zhongtao Wang;Xueer Zhang;Canyang Zhu
    • The Korean Journal of Pain
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    • v.37 no.2
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    • pp.151-163
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    • 2024
  • Background: Galangin, commonly employed in traditional Chinese medicine for its diverse medicinal properties, exhibits potential in treating inflammatory pain. Nevertheless, its mechanism of action remains unclear. Methods: Mice were randomly divided into 4 groups for 7 days: a normal control group, a galangin-treated (25 and 50 mg/kg), and a positive control celecoxib (20 mg/kg). Analgesic and anti-inflammatory effects were evaluated using a hot plate test, acetic acid-induced writhing test, acetic acid-induced vascular permeability test, formalin-induced paw licking test, and carrageenan-induced paw swelling test. The interplay between galangin, transient receptor potential vanilloid 1 (TRPV1), NF-κB, COX-2, and TNF-α proteins was evaluated via molecular docking. COX-2, PGE2, IL-1β, IL-6, and TNF-α levels in serum were measured using ELISA after capsaicin administration (200 nmol/L). TRPV1 expression in the dorsal root ganglion was analyzed by Western blot. The quantities of substance P (SP) and calcitonin gene-related peptide (CGRP) were assessed using qPCR. Results: Galangin reduced hot plate-induced licking latency, acetic acid-induced contortions, carrageenan-triggered foot inflammation, and capillary permeability in mice. It exhibited favorable affinity towards TRPV1, NF-κB, COX-2, and TNF-α, resulting in decreased levels of COX-2, PGE2, IL-1β, IL-6, and TNF-α in serum following capsaicin stimulation. Galangin effectively suppressed the upregulation of TRPV1 protein and associated receptor neuropeptides CGRP and SP mRNA, while concurrently inhibiting the expression of NF-κB, TNF-α, COX-2, and PGE2 mRNA. Conclusions: Galangin exerts its anti-inflammatory pain effects by inhibiting TRPV1 activation and regulating COX-2, NF-κB/TNF-α expression, providing evidence for the use of galangin in the management of inflammatory pain.

Anti-inflammatory Action of Phenolic Compounds from Gastrodia elata Root

  • Lee, Ji-Yun;Jang, Young-Woon;Kang, Hyo-Sook;Moon, Hee;Sim, Sang-Soo;Kim, Chang-Jong
    • Archives of Pharmacal Research
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    • v.29 no.10
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    • pp.849-858
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    • 2006
  • Previous screening of the pharmacological action of Gastrodia elata (GE) root (Orchidaceae) showed that methanol (MeOH) extracts have significant anti-inflammatory properties. The antiinflammatory agents of GE, however, remain unclear. In this experiment, MeOH extracts of GE were fractionated with organic solvents for the anti-inflammatory activity-guided separation of GE. Eight phenolic compounds from the ether (EtOEt) and ethyl acetate (EtOAc) fractions were isolated by column chromatography: 4-hydroxybenzaldehyde (I), 4-hydroxybenzyl alcohol (II), benzyl alcohol (III), bis-(4-hydroxyphenyl) methane (IV), 4(4'-hydroxybenzyloxy)benzyl-methylether (V), 4-hydroxy-3-methoxybenzyl alcohol (VI), 4-hydroxy-3-methoxybenzaldehyde (VII), and 4-hydroxy-3-methoxybenzoic acid (VIII). To investigate the anti-inflammatory and anti-oxidant activity of these compounds, their effects on carrageenan-induced paw edema, arachidonic acid (AA)-induced ear edema and analgesic activity in acetic acid (HAc)-induced writhing response were carried out in vivo; cyclooxygenase (COX) activity, reactive oxygen species (ROS) generation in rat basophilic leukemia (RBL 2H3) cells and 1,1-diphenyl-2-picryl-hydroazyl (DPPH) scavenging activity were determined in vitro. These phenolic compounds not only had anti-inflammatory and analgesic properties in vivo, but also inhibited COX activity and silica-induced ROS generation in a dose-dependent manner. Among these phenolic compounds, compound VII was the most potent anti-inflammatory and analgesic. Compound VII significantly inhibited silica-induced ROS generation and compound VI significantly increased DPPH radical scavenging activity. Compounds I, II and III significantly inhibited the activity of COX-I and II. These results indicate that phenolic compounds of GE are anti-inflammatory, which may be related to inhibition of COX activity and to anti-oxidant activity. Consideration of the structure-activity relationship of the phenolic derivatives from GE on the anti-inflammatory action revealed that both C-4 hydroxy and C-3 methoxy radicals of benzyl aldehyde play an important role in anti-inflammatory activities.

A Case of Severe Aconitine Intoxication with Ventricular Tachycardia, Successfully Treated by a Combination of Two Anti-arrhythmic Drugs (두 가지 항부정맥 약제를 병용 투여하여 성공적으로 치료한 심실빈맥이 동반된 부자중독 1례 보고)

  • Ryoo, Seung-Mok;Sohn, Chang-Hwan;Oh, Bum-Jin;Kim, Won;Lim, Kyoung-Soo
    • Journal of The Korean Society of Clinical Toxicology
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    • v.9 no.2
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    • pp.105-108
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    • 2011
  • Aconitine is an anti-inflammatory agent with therapeutic uses in oriental medicine as an analgesic and for treatment of stroke. Because of its sodium channel effect, aconitine can promote undesirable, wide complex tachyarrhythmia. If tachycardia develops during use of aconitine, class Ia and class III anti arrhythmic drugs can be utilized for treatment. However there are no single anti-arrhythmia agents which are uniformly effective. We report a case, characterized by wide complex tachyarrhythmia and severe hypotension, which was successfully treated by simultaneous injections of amiodarone and lidocaine. A 59-year-old woman exhibiting clinical signs of drowsiness as a result of ingesting 6 g of aconitine, was admitted to the emergency department. Initially, wide complex tachyarrhythmia (ventricular tachycardia and pulse rate of 180 beats/min) and severe hypotension (blood pressure of 53/26 mmHg) was observed. After simultaneous injection of amiodarone and lidocaine, the patient's rhythm pattern changed to an accelerated junctional rhythm with ventricular premature complex. Two hours later, the patient's heart pattern became a sinus rhythm. As demonstrated by this case, simultaneous injections of amiodarone and lidocaine can be useful in treating ventricular arrhythmia induced by aconitine.

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