• Title/Summary/Keyword: ANALGESIC EFFECT

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Effect of the Combination of CI-988 and Morphine on Neuropathic Pain after Spinal Cord Injury in Rats

  • Kim, Junesun;Kim, Youngkyung;Hahm, Suk-Chan;Yoon, Young Wook
    • The Korean Journal of Physiology and Pharmacology
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    • v.19 no.2
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    • pp.125-130
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    • 2015
  • Cholecystokinin is known to be involved in the modulation of nociception and to reduce the efficacy of morphine analgesia. This study investigated the effects of intrathecal administration of morphine and the cholecystokinin type B antagonist CI-988 on below-level neuropathic pain after spinal cord injury in rats. We also examined the interaction of morphine and CI-988 in the antinociceptive effect. Both morphine and CI-988 given individually increased the paw withdrawal threshold to mechanical stimulation in a dose-dependent manner. The combination of ineffective doses of intrathecally administered CI-988 and morphine produced significant analgesic effects and the combination of effective doses resulted in analgesic effects that were greater than the sum of the individual effects of each drug. Thus, morphine showed a synergistic interaction with CI-988 for analgesia of central neuropathic pain.

Santalum album Linn wood and its oil: An aromatic Unani traditional medicine with versatile pharmacological activities

  • Sultana, Arshiya;Rahman, Khaleequr
    • CELLMED
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    • v.8 no.3
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    • pp.14.1-14.6
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    • 2018
  • Santalum album Linn. [Family: Santalaceae] is commonly known as white sandalwood, sandal safaid and safed chandan. It is one of the most valuable trees and second costliest wood in the world. Sandalwood and its oil is extensively used in the Unani and other traditional systems of medicine as it has blood purifier, anti-inflammatory, analgesic, exhilarant, cardiotonic, antiseptic, nervine tonic and expectorant properties. It is used in skin, cardiac, liver, gastrointestinal, respiratory, integument and urogenital disorders. These uses are supported and proven by many in vitro or in vivo studies. The proven pharmacological activities of S. album are antimicrobial, anti-oxidant, anti-inflammatory, antimutagenic and anti-fatigue. The research has proven that sandal oil or its constituents have anti-microbial activity. Sandalwood oil showed skin cancer preventive effect in mice and its constituent alpha santalol showed the anticancer property. The methanolic extract of wood was confirmed for antioxidant, free radical scavenging, analgesic and anti-inflammatory activities. ${\alpha}$ and ${\beta}$ santalols present in sandal oil showed sedative effects. Sandalwood tea had a significant effect on heart muscles of frog and showed increased myocardial contractility. Its oil showed significant changes in hepatic xenobiotic metabolizing enzymes. Sandalwood oil and its major constituents showed less acute oral and dermal toxicity in laboratory animals. Hence, the aforementioned studies justify the uses of sandalwood and its oil mentioned in the classical Unani literature. However, further clinical trials are suggested to confirm its efficacy and safety in humans.

Studies on the Efficacy of Combined Preparation of Crude Drugs (IVX). -Effect of 'Banhabaikchulchenma-Tang' on the Analgesic and Sedative Actions- (생약복합제제(生藥複合製劑)의 약효연구(藥效硏究) (제14보)(第14報) -반하백출천마탕(半夏白朮天麻湯)이 진통(鎭痛) 및 진정작용(鎭靜作用)에 미치는 영향(影響)-)

  • Hong, N.D.;Kim, J.W.;Song, I.B.;Kim, N.J.
    • Korean Journal of Pharmacognosy
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    • v.14 no.3
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    • pp.107-112
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    • 1983
  • Experimental studies were made to evaluate clinical efficacy and validate Oriental medicine description of 'Banhabaikchulchenma-Tang' which has been used for controlling of headache, heartburn and giddiness, etc. The results of these studies were as follows; 1) Suppressive actions were not shown on convulsion due to spine and diencephatic causes. 2) Analgesic action was recognized in mice and rats. 3) Sedative actions due to prolongation of hypnosis time, muscle relaxation and decreasing locomotive function were noted. 4) Relaxing action was noted in the ileum of mice, also antagonistic antispasmodic action was recognized on contraction of the ileum induced by acteylcholine and $BaCl_2$. In connection with results of these studies, efficacy based on the Oriental medical reference were consistant with actual experimental results. It is considered that 'Banhabaikchulchenma-Tang' has the therapeutic effect on the headache and giddiness, etc.

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Carrageenan-Induced Hyperalgesia Is Partially Alleviated by Endomorphin-1 Locally Delivered into Inflamed Paws in Rat

  • Lee, Seo-Eun;Shin, Hong-Kee
    • The Korean Journal of Physiology and Pharmacology
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    • v.7 no.6
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    • pp.369-373
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    • 2003
  • This study was performed to test whether endomorphin-1 has analgesic effect, when locally administrated into inflamed peripheral tissue. Carrageenan suspension (0.5%) was injected intraplantarly into the right paw of Sprague-Dawley male rats, and the rats were subjected to a series of mechanical stimuli with von Frei filaments before and after the injection. Carrageenan-injected rats showed typical inflammatory hyperalgesic signs and decrease of withdrawal threshold, peaked at 3 to 6 hours after the injection and lasted more than 3 days. Endomorphin-1 was intraplantarly injected with carrageenan, simultaneously or 3∼4 hours after carrageenan. Simultaneous injection of endomorphin-1 with carrageenan significantly reduced hyperalgesia and thd analgesic effect was prolonged up to 8 hours. The delivery of endomorphin-1 ($50{\mu}g$) into the inflamed area after 3 to 4 hours of carrageenan injection significantly increased the threshold of hyperalgesic mechanical withdrawal response, but only partially. Intrathecal treatment of endomorphin-1 completely reversed carrageenan-induced hyperalgesia. This report is the first to show that peripherally delivered endomorphin-1 relieved inflammatory hyperalgesia. But a control through peripheral ${\mu}-opioid$ receptors appears to be not sufficient for complete pain treatment.

Analgesic Effect of Botulinum Toxin on Neuropathic Pain after Trigeminal Nerve Injury (삼차신경 손상에 의한 신경병증성 통증에서 보툴리눔 독소의 진통 효과)

  • Kim, Young-Gun;Kim, Seong-Taek
    • Journal of Dental Rehabilitation and Applied Science
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    • v.28 no.2
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    • pp.171-178
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    • 2012
  • Botulinum toxin type A (BoNT-A) has been applied successfully to treat chronic migraine, dystonia, spasticity and temporomandubular disorders(TMDs) as well as frontal wrinkle and glabella wrinkle. Recently it has been reported that BoNT-A, reversibly blocks presynaptic acetylcholine release, also inhibits the release of substance P, CGRP(calcitonin gene related peptide) and glutamate related to peripheral sensitization and neurogenic inflammation in sensory nerve, In this study we reviewed animal nerve injury model such as rat and rabbit and identify the analgesic effect and mechanism of nerve injury pain after dental treatment.

Electroacupuncture Analgesia on the Arthritic Pain in Two Different Models in Rats (백서의 두 종류 관절염 모델에서 통증에 대한 전침의 진통 효과)

  • Moon, Sang-don;Lim, Kyu-sang
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.16 no.2
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    • pp.138-151
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    • 2003
  • Although the use of acupuncture for pain has increased in recent years, the mechanisms of acupuncture analgesia (AA) remains obscure. The lack of suitable experimental animal models for persistent pain, which show clear AA, has been the major stumbling block in the investigation of the physiological mechanisms of AA. In the present study, we test AA in two knee arthritis model induced by injection of CFA or carrageenan as a chronic pain model. After induction of arthritis, the rat subsequently showed a reduced stepping force of the affected limb for the next several days. Electroacupuncture (EA) was applied to an acupuncture point each on the contralateral forelimb for 30 minutes under enflurane anesthesia. After the termination of EA, behavioral tests measuring stepping force were periodically conducted during the next several hours. EA produced a significant improvement of stepping force of the foot lasting for at least 2 hours when applied to LR2 In CFA model, and applied to ST36 in carrageenan model, but both points did not produce any significant effects in each other model. These data suggest that EA produce analgesic effect in knee arthritic pain and the analgesic effect is specific to the acupuncture point.

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Differential Actions of Intracerebroventricular Opioid Receptor Agonists on the Activity of Dorsal Horn Neurons in the Cat Spinal Cord (Opioid 수용체 효능제의 뇌실 내 주입이 고양이 척수후각세포의 활성에 미치는 영향)

  • 문태상;오우택
    • YAKHAK HOEJI
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    • v.43 no.4
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    • pp.411-418
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    • 1999
  • Intracerebroventricular (ICV) infusion of morphine (MOR) produces strong analgesia in man and animals. The analgesic effect is thought to be mediated by the centrifugal inhibitory control. But neural mechanisms of the analgesic effect of ICV morphine are not well understood. In the present study, we found that ICV MOR had dual actions on the activity of dorsal horn heurons: it produced both inhibition and excitation of dorsal horn neurons. Since MOR exerts its action via three different types of opioid receptors, we further sought to investigate if there are differential effects of opioid receptor agonists on dorsal horn neurons when administered intracerebroventricularly. Effects of ICV MOR were tested in 28 dorsal horn neurons of the spinal cord in the cat. ICV MOR inhibited, excited and did not affect the heat responses of dorsal horn neurons. ICV DAMGO and DADLE, $\mu$- and $\delta$-opioid agonist, respectively, exhibited the excitation of dorsal horn neurons. In contract, U-50488, a k-opioid agonist, exhibited both the inhibition and excitation of dorsal horn neurons. These results suggest that opioid receptors have different actions on activity of dorsal horn neuron and that the inhibitory action of k-opioid agonist may subserve the analgesia often produced by ICV MOR.

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Pharmacological Studies on Powdered Whole Part of Unossified Antler (분말녹용의 약물활성 연구(I))

  • Shin, Kuk-Hyun;Lee, Eun-Bang;Kim, Jea-Hyun;Chung, Myong-Sook;Cho, Sung-Ig
    • Korean Journal of Pharmacognosy
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    • v.20 no.3
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    • pp.180-187
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    • 1989
  • Systematic pharmacological studies on powdered whole part of unossified antler obtained from Cervus nippon Temminck var. mantchuricus have been carried out in mice and rats. Powdered antler, with a single oral administration, showed a very weak acute and subacute toxicity; its MLD being >5g/kg orally in mice. On daily oral treatments of the antler for 14 days, it did not cause any significant differences in body weight gain, various organ weights and serum transaminase activities compared to those of the control rats. Powdered antler, with a single oral administration, showed a remarkable analgesic activity as evaluated by writhing syndrome and tail-pressure test, a weak CNS depressant activity as well as a weak immunopotentiating action as evaluated by carbon clearance test in mice. Powdered antler, with repeated treatments, showed a moderate antifatigue effect against immobilized stress and showed significant increases in both adrenal weight and its ascorbic acid content in rats, suggesting that the mode of antifatigue effect of antler is related to adrenal and its components.

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Effect and Satisfaction Measurement of Korean Medicine Treatment on Adolescent Dysmenorrhea (중고등학교 여학생의 월경통 한방 치료 효과 및 만족도 분석)

  • Park, Soo-Jung;Joo, Jong-Cheon;Kim, Jeong-Ho;Kim, Seong-Bae;Lee, Sang-Duk
    • The Journal of Korean Obstetrics and Gynecology
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    • v.29 no.1
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    • pp.69-77
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    • 2016
  • Objectives: The aim of this study is to evaluate the effect and satisfaction measurement of the Korean medicine treatment on the adolescent dysmenorrhea. Methods: The subjects of this study were 24 volunteers, suffering from dysmenorrhea, who were middle and high school students in Jeonbuk province. They were treated by Korean medicine, those were acupuncture, cupping, moxibustion and herbal medicine, for two months from July to December 2015. The results were investigated by the visual analogue scale (VAS) of overall pain, most severe pain and amount of the analgesic taken for menstrual period. The effects of treatment were assessed three times, those were before treatment, after treatment for 1 month and after treatment for 2 months, for two months. Results: The VAS score on dysmenorrhea was decreased significantly. Also, the VAS score on the disturbance in school activity was decreased significantly. The amount of analgesic taken for menstrual period was decreased, but not significantly. Conclusions: This study suggests that the Korean medicine treatment on the adolescent dysmenorrhea is effective.