• Title/Summary/Keyword: central nervous system activity

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Studies on the Efficacy of Combined Preparation of Crude Drugs(XXXII) -The Effect of Shihogesikungang-tang on the Central Nervous and Cardiovascular Systems- (생약(生藥) 복합제제(複合製劑)의 약효(藥效) 연구(硏究)(제32보)(第32報) -시호계지건강탕(柴胡桂枝乾薑湯)이 중추신경계(中樞神經系) 및 순환기계(循環器系)에 미치는 영향(影響)-)

  • Yoon, Myung-Sik;Kim, Nam-Jae;Lee, Kyung-Sup;Hong, Nam-Doo
    • Korean Journal of Pharmacognosy
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    • v.17 no.4
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    • pp.272-279
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    • 1986
  • This study was conducted about the effect of Shihogesikungang-tang on the central nervous system and cardiovascular system for the investigation of its clinical effect based on the Oriental medicinal references. The results of this study were summerized as follows; Analgesic activity as evaluated by the writhing syndrome in mice was significantly noted. A decrease effect of the spontaneous movement as estimated by wheel cage method, muscle relaxant effect as evaluated by the rotor rod method and the prolonged effect of sleeping time induced by thiopental-Na were significantly shown in mice. A antipyretic activity in febrile rats induced by the endotoxin was recognized. Anti-inflammatory effect in carrageen-induced paw edema in rats was significantly noted. Negative inotropic action on the isolated heart of frogs was noted. A vasodilative action in rabbits peripheral blood vessels and hypotension in anesthetized rabbits were remarkably recognized.

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Pharmacological Studies on Ether Fraction of Corni Fructus (산수유 에텔분획물의 약리작용에 관한 연구)

  • 이은방;최병천;조태순
    • YAKHAK HOEJI
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    • v.29 no.1
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    • pp.1-10
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    • 1985
  • The ether fraction obtained from dry fruit of Cornus officinalis was investigated for the anti-inflammatory action, acute toxicity and central nervous system activities. From several pharmacological examinations, it was found that the ether fraction suppressed considerably carrageenin edema at the dose of 600mg/kg p.o. in rats, inhibited the granuloma formation in rats as given 100mg/kg p.o. for 7 days and decreased the swelling of both of complete adjuvant injected and noninjected (contralateral) paws of the rats at the dose of 100mg/kg p.o. given for 14 days. The $LD_{50}$ of the fraction are estimated to be more than 2,000mg/kg p. o. and 642mg/kg i. p. in mice. And the fraction did not show any sedative, stimulative, analgesic and anticonvulsant action but exhibited hypothermic action. These results might be concluded that the ether fraction of Corni fructus showed anti-inflammatory action in both of acute and chronic type models without any considerable central nervous depressant activity and exhibited very weak acute toxicity in mice.

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General Pharmacology of SB-31$\circledR$ (SB-31$\circledR$의 일반약리작용)

  • 박우규;천혜경;권경자;윤여생;신화섭;공재양
    • Biomolecules & Therapeutics
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    • v.5 no.4
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    • pp.369-375
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    • 1997
  • General pharmacological effects of SB-31$^{R}$, the extracts of Pulsatilla koreana, were investigated in mice, rats and guinea-pigs. Intravenous injection of SB-31 (3 and 6 ml/kg) produced almost no effect on central nervous system no effects on the general symptom and behaviors of mice, spontaneous locomotor activity, pentobarbital- induced sleeping time , rotared performance , electroshock and pentylenetertrazole -induced seizures, acetic acid-induced writhing and normal body temperature in mice. SB-31 showed little effects on the spontaneous movement of the isolated ileum and contraction induced by agonists in isolated ileum, suggesting no influence on autonomic nervous system. Administration of SB-31 also did not show any effect on blood pressure in conscious rats. However, a slight decrease in heart rate was observed at high doses (6 and 10 ml/kg) of SB-31 in conscious rats. Similarly, a slight increase in respiratory rate was observed at 6 m1/kg of SB-31 in anesthetized rats. SB-31 did not produce any effect at the dose of 3 ml/kg, but showed a tendency to increase the urinary volume at 6 ml/kg, and produced a decrease in urinary excretions of N $a_{+}$and $K_{+}$at 6 ml/kg. However, transport capacity within the gastrointestinal tract and the secretion of the gastric juice were not influenced by 6 ml/kg of SB-31. In conclusion, these results suggest that SB-31 did not pro-duce any acute effects on the central nervous system, autonomic nervous system, respiratory and circulatory systems, digestive system and kidney function at the dose of below 3 ml/kg.ml/kg.

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Pain Physiology and Principles of Physical Therapy (통증 생리와 물리치료 원리)

  • Kim, Jong-Man;Ahn, Duck-Hyun
    • Physical Therapy Korea
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    • v.5 no.2
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    • pp.106-117
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    • 1998
  • The pain is common among individuals with physical disabilities. It can interfere with therapy since patients with pain can become uncooperative and reluctant to move. This paper reviews the natural physiological mechanisms that can reduce pain perception, and considers physiological mechanisms which contribute to clinical pain by describing how the pain system changes its sensitivity depending upon the body's needs. The peripheral and central mechanisms contributing to sensitised nociceptive system are described with reference to the symptoms of clinical pain such as hyperalgesia, allodynia sopntaneous 'on-going'-projected and referred pain. It is suggested that in some chronic pain the nociceptive system maintains a state of sensitivity despite the absence of on-going tissue damage and under such circumstances the nociceptive system itself may have become dysfunctional. Such situations are often initiated by damage to nervous tissue which results in changes in the activity and organization of neuronal circuits within the central nervous system. The ability of the nociceptive system to operate in a suppressed state is also discussed with reference to pain modulation. The physical therapist can help facilitate the activation of these mechanisms through a combination of noninvasive modalities, functional activities, and the therapeutic use of self.

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An Analytical Comparison in Electoencephalography and Electrocardiography under Pulsed Magnetic Field and Acupuncture Stimulus on Acupoint PC9

  • Lee, Hyun Sook;Hwang, Do Guwn;Cha, Yun-Yeop
    • Journal of Magnetics
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    • v.18 no.2
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    • pp.192-196
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    • 2013
  • We have investigated the changes of electroencephalography (EEG) and electrocardiography (ECG) under pulsed magnetic field (PMF) and acupuncture stimulus on acupoint PC9. In order to compare quantitatively the effect of PMF and acupuncture stimulus, the difference of alpha activities are calculated from EEG spectra, and the spectrum curves of ECG were analyzed in the frequency domain of heart rate variability (HRV). The increase of alpha activities after both stimuli could be explained that the impulse of stimulus on PC9 might pass through sensory nerve following meridian and approach the cerebral cortex, causing the central nervous system (CNS) to be activated for pacifying emotion and calming the mind. The decrease in sympathovagal activity of HRV after both stimuli indicates that parasympathetic nerves were activated and the sympathetic nerves were in constrained condition. These findings suggest that PMF could be patient-friendly alternative non-invasive medical treatment for influencing human physiology, in comparison with acupuncture inserting the needle and inducing nervous and anxious state to subject.

Biological Evaluation of Some Saudi Arabian Plants

  • Woo, Won-Sick;Lee, Eun-Bang;Chi, Hyung-Joon;Ahmad-Jado
    • YAKHAK HOEJI
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    • v.21 no.3
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    • pp.141-145
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    • 1977
  • Alcoholic extracts of twenty-one Saudi Arabian plants have been evaluated for their biological activities. Many of the plant extracts were observed to have weak activities against central nervous system. Rhazya stricta showed antimicrobial activity. However, any extract with antitumor activity could not be detected.

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Etiology and Mechanism of Neuropathic Pain (일반적인 신경병성 통증의 원인 및 기전)

  • Lim, Hyun-Dae
    • The Journal of the Korean dental association
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    • v.49 no.6
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    • pp.321-326
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    • 2011
  • Neuropathic pain is caused by functional abnonnalities of structural lesions in the peripheral or central nervous system, and occurs without peripheral nociceptor stimulation. Trigeminal neuropathy always pose differential location difficulties as multiple diseases are capablc of producing them: they can be the result of traumatism, tumors, or diseases of the connective tissue, infectious or demyelinating diseases, or may be of idiopathic origin. There are a number of mechanisms described as causing neuropathy. They can be described as ectopic nerve activity, neuroma, ephatic trasmission, change of sodium channel expression, sympathetic activity, central sensitization, and alteration in central inhibition systems. More than I mechanism may be active to create individual clinical presentations. In order to provide better pain control, the mechanism-based approach in treating neuropathic pain should be familiar to physicians.

Postcardiotomy Central Anticholinergic Syndrome; Report of A Case (수술 후 발생한 중추성 항콜린성 증후군 1례보고)

  • 이재원;김정원;박승일;송명근;최인철;심지연;권순억
    • Journal of Chest Surgery
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    • v.34 no.8
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    • pp.634-639
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    • 2001
  • Central anticholinergic syndrome is defined as an absolute or relative reduction in cholinergic activity in the central nervous system and has a wide variety of manfestations. It is associated with almost any drug given during anesthesia, except neuromuscular relaxants, and treated with the cholinesterase inhibitor physostigmine. The diagnosis of central anticholinergic syndrome is often made when symptoms resolve promptly after the administration of physostigmine. We present a case of a central anticholinergic syndrome diagnosed by treatment with physostigmine, in a patient who received closure of patent foramen ovale associated with stroke.

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General Pharmacology of AG 60, a New Anticancer Drug (새로운 항암제 AG 60의 일반약리작용)

  • 성연희;안희열;김선돈;이선애;조순옥;한영복
    • Biomolecules & Therapeutics
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    • v.5 no.4
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    • pp.412-418
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    • 1997
  • General pharmacological properties of AG 60 (mixture of acriflavine and guanosine (1:1, w/w)), which has anticancer effect, following intramuscular administration were examined in terms of effects on central nervous system, gastrointestinal system, cardiovascular system, respiratory system and autonomic nervous system in mice, rats, guinea-pigs and rabbits. AG 60 at the dose of 15 mgtg had no influences on pentobarbital sleeping time, spontaneous motor activity, chemoshock produced by pentylenetetrazole solution, writhing syndromes induced by 0.8% acetic acid solution, and motor coordination of mice. However, AG 60 at the dose of 7.5 and 15 mg/kg caused significant decrease of normal body temperature 1 and/or 2 h after the administration. No influence on body temperature was observed at 3.75 mg/kg in mice. Gastric secretion of rat and intestinal motility of mice were not influenced by the dose of 15 mg/kg. In terms of autonomic nervous system, AG 60 did not show direct effect and inhibitory or augmentative action of histamine- or acetylcholine-induced contractions at the concentration of 5 mg/L in the isolated ileum of guinea-pig. The administration of 15 mg/kg of AG 60 did not affect mean arterial blood pressure and heart rate in rat. AG 60 (15 mg/kg) given to anesthetized rabbits showed no effect on respiratory rate.

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The Activity of Dopamine $\beta$-Hydroxylase of Central Nervous System in Genetically Epilepsy Prone Rats

  • Park, Youn-Joo;Chung, Hye-Joo;Lee, Kwang-Ho;Ko, Kwang-Ho
    • Archives of Pharmacal Research
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    • v.14 no.2
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    • pp.172-175
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    • 1991
  • Abnormality in the central noradrenergic system may be related to the seizure prone state in the genetically epilepsy prone rats (GEPR). The present work deals with the characterization of the deficit in noradrenergic system if susceptitibility and intensity of seizure are dependent on central noradrenregic activities by comparing the activities of dopamine $\beta$-hydroxylase (DBH) which hydroxylates dopamine into noradrenaline. DBH activities were measured in 5 areas of brain of normal rats, native GEPR and severe GEPR. The results suggest that lower DBH activities in the midbrain of GEPRs may positively be coupled to the susceptibility to seizure, whereas the same characteristics of the native or severe GEPR are not neccessarily in parallel with the intensity of seizure.

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