• 제목/요약/키워드: CNS effects

검색결과 156건 처리시간 0.024초

5-Phenyl-2, 4-Pentadienoic Acid Amide 유도체의 중추 억제작용에 관한 연구 (Central Nervous Depressant Activity of 5-Phenyl-2, 4-pentadienoic Acid Amide Derivatives)

  • 조태순;임중기;신용회;신대희
    • 약학회지
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    • 제31권1호
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    • pp.19-24
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    • 1987
  • In order to find out the pharmacologically active but less toxic compounds than piperine, the actions of several amide derivatives of 5-phenyl-2, 4-pentadienoic acid on the CNS depressant activities were examined. The nine amide derivatives were investigated by using ICR mice as an experimental amimals on acute toxicities, anticonvulsant, sedative, analgesic and antipyretic effects. In the case of acute toxicities, all derivatives were weaker than piperine except compound III. Compound I showed strong anticonvulsant activity. On the other hand, compound I, III and IV significantly prolonged the sleeping time induced by hexobarbital in mice. Compound I, III and IV exhibited better analgesic effect than aspirin while compound II, V, VII and IX showed similar antipyretic activity to aspirin.

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굴(Crassostrea gigas)·다시마(Saccharina japonica) 발효 분말의 스트레스 완화 및 수면 유도 효과 (Stress Relaxation and Sleep Induction Effect of Fermented Sea Tangle Saccharina japonica and Oyster Crassostrea gigas Powder)

  • 우남식;서용배
    • 한국수산과학회지
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    • 제46권6호
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    • pp.702-707
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    • 2013
  • Sleep is an essential biological process of which the underlying regulatory mechanisms involve numerous anatomical structures and biochemical substances that can be compromised by stress and the immune system. Gamma aminobutyric acid (GABA) is the main inhibitory neurotransmitter of the central nervous system (CNS). It is well established that activation of $GABA_A$ receptors promotes sleep. L. brevis BJ20 fermentation of sea tangle and oysters resulted in stress reduction and sleep inducing effects. This is the first study to report that GABA has the ability to induce sleep related hormones in mice; therefore, it has potential use as a natural sleep aid. These results suggested that sea tangle and oysters fermented by L. brevis BJ20 can be used as potential agents for stress reduction and sleep promotion.

Radiation-Induced Glioblastoma Multiforme in a Remitted Acute Lymphocytic Leukemia Patient

  • Joh, Dae-Won;Park, Bong-Jin;Lim, Young-Jin
    • Journal of Korean Neurosurgical Society
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    • 제50권3호
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    • pp.235-239
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    • 2011
  • Radiation therapy has been widely applied for cancer treatment. Childhood acute lymphocytic leukemia (ALL), characterized by frequent central nervous system involvement, is a well documented disease for the effect of prophylactic cranio-spinal irradiation. Irradiation, however, acts as an oncogenic factor as a delayed effect and it is rare that glioblastoma multiforme develops during the remission period of ALL. We experienced a pediatric radiation-induced GBM patient which developed during the remission period of ALL, who were primarily treated with chemotherapeutic agents and brain radiation therapy for the prevention of central nervous system (CNS) relapse. Additionally, we reviewed the related literature regarding on the effects of brain irradiation in childhood and on the prognosis of radiation induced GBM.

Antinociceptive and sedative effects of the bark of Cerbera odollam Gaertn.

  • Ahmed, Firoj;Hossain, M Hemayet;Rahman, Ahmed Ayedur;Shahid, Israt Zahan
    • Advances in Traditional Medicine
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    • 제6권4호
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    • pp.344-348
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    • 2006
  • The crude methanolic extract of the bark of Cerbera odollam Gaertn. was evaluated for its possible antinociceptive and neuropharmacological activities in animal models. At the dose of 250 and 500 mg/kg body weight, the extract showed a significant antinociceptive effect in acetic acid induced writhing in mice comparable to that produced by aspirin, used as standard drug (P<0.001). The extract significantly reduced the time of onset of sleep (P<0.01) and potentiated the pentobarbital induced sleeping time in mice at the dose of 400 mg/kg of body weight significantly (P<0.001). It also decreased the open field score in open field test significantly at the dose of 400 mg/kg of body weight (P < 0.05). The obtained results tend to suggest the probable antinociceptive and neuropharmacological activities of the crude extract.

반하후박탕(半夏厚朴湯)의 실험약리학적(實驗藥理學的) 연구(硏究) (Experimental Studies on Pharmacological Action of the Banhahubagtang, A Combined Preparation of Oriental Medicine)

  • 이범구;조태순
    • 생약학회지
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    • 제18권1호
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    • pp.14-25
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    • 1987
  • The effects of the water extract of 'Banhahubagtang', the combined herbal medicine, on the low esophageal sphincter, stomach, small intestine and CNS were investigated, and the results were as follows: The hexobarbital induced sleeping time was prolonged in female mice. The convulsion induced by electric shock was suppressed and analgesic action was recognized in mice. The extract inhibited intestinal propulsion of barium sulfate in mice. The extract inhibited free acid secretion and showed remarkable suppression of gastric ulcer in rats. Relaxation induced by isoproterenol and norepinephrine in low esophageal sphincter(L.E.S.) of rabbit was potentiated by addition of the extract. In conclusion, the Banhahubagtang exhibited anticonvulsive, sedative and L.E.S. inhibitory activities. These experimental results might indicate to be coincided with the indications for neuro-esophago-stenosis, esophagitis, esophagia, gastralgia, and neurosis which are well referred to the literature of oriental medicine.

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천장관절기능부전으로 인해 발생된 무릎 통증환자의 도수치료 적용사례 (Case study of application on manual therapy of knee pain cause of Sacroiliac joint dysfunction)

  • 최성환;박현식;신영일
    • 대한정형도수물리치료학회지
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    • 제14권1호
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    • pp.61-65
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    • 2008
  • Purpose : The purpose of the study was to determine Effects of application on manual therapy of knee pain cause of Sacroiliac joint dysfunction. Methods : The patient with knee pain was 59years female. Muscle Energy Techniques, high-velocity, low-amplitude and modality(Hot pack, ultrasound, TENS) using during one month. Results : The patient has improve pain, muscle strength and function.

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Clonidine Patch에 피부자극성 시험 (Skin Irritation Test of Clonidine Patch)

  • 이영순;박우일;고광호
    • Biomolecules & Therapeutics
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    • 제4권2호
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    • pp.202-204
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    • 1996
  • Clonidine, an antihypertensive drug, stimulates postsynaptic $\alpha_2$adrenergic receptors in the CNS and lowers arterial pressure by erects on both cardiac output and peripheral resistance. However, many patients experience that sedation and xerostomia occured upon oral administration of clonidine. These side effects are due to high plasma peak concentration and can be avoided when clonidine is given transdermally. In this study, we performed the skin irritation test for transdermal administration of clonidine patch on New Zealand white rabbits. Twelve New Zealand white rabbits were divided into two groups according to the dose levels, respectively. After transdermal administration of clonidine patch with two doses, clinical manifestations, body weight loss and postmortem findings were observed. We could not find any significant evidence of skin irritation by transdermal administration of clonidine patch.

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영묘향함유 우황청심원액과 사향함유 우황청심원액의 중추신경계에 대한 약리효과 비교시험 (The Comparative Effects of Civet-Containing and Musk-Containing WooHwangChungSimWon on the Central Nervous System)

  • 최은욱;김기남;신상덕;조명행;마응천
    • 약학회지
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    • 제44권5호
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    • pp.470-477
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    • 2000
  • WooHwangChungSimWon is a traditional medicine for treatment of hypertension, arteriosclerosis, coma, and stroke in China, Korea, and Japan. In the new prescription of WooHwangChungSimWon, the civet is substituted for the musk, the major component of WooHwangChungSimwon, because of the prohibition law about the musk. We have made a comparative study of the effects on the central nervous system between the musk containing and civet containing WooHwangChungSimWon. In order to investigate the effects on the central nervous system, we have examined spontaneous motor activities, anti-convulsion activities induced by chemicals or electric shock, sleep induced by hexobarbital, and antistress effects. In the examination of anti-convulsion effects against the electric shock and injection of pentetrazol, only the civet containing WooHwangChungSimWon showed the anti-convulsion effects, i.e. the duration of convulsion by electric shock was decreased (control: 104.0 seconds, low dose of civet containing WooHwangChungSimWon: 60.7 seconds) and the duration of suppression against pentetrazol induced convulsion was increased (control: 392.3 seconds, low dose of civet containing WooHwangChungSimWon: 574.0 seconds, high dose of civet containing WooHwangChungSimWon: 561.4 seconds). In the other examinations, all kinds of WooHwangChungSimWon showed sedation, anti-convulsion activities, and induction of sleeping. These results suggest that there are no significant differences between the musk containing and civet containing WooHwangChungSimWon except the anti-convulsion effects against the convulsions induced by electric shock and pentetrazol.

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나노 독성의 개념 및 나노입자에 대한 위해성 평가의 필요성 (The Concepts of Nanotoxicology and Risk Assessment of the Nanoparticles)

  • 맹승희;유일재
    • Toxicological Research
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    • 제21권2호
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    • pp.87-98
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    • 2005
  • Human exposure to nano-sized particles (NSP) has increased over the last century with anthropogenic sources, and the rapid development of nanotechnology becomes an another source of such exposure. Information regarding the safety of nanotechnology and its product, nanoparticles, is urgently needed when assuming exposure through inhalation, oral intake, and penetration across skin is ever increasing as growing nanotechnology rapidly. The recent advancement of biokinetic studies with NSP and newer epidemiologic and toxicologic studies with ultrafine particles can be the basis for the nanotoxicology. Some concepts of nanotoxicology can be known from the results of these results. Specific small size of NSP, when inhaled, facilitates deposition by difusional mechanism in all regions of the respiratory tract and uptake into cells, ranscytosis across epithelial and endothelial cells into the blood and lymph circulation to reach target sites. Translocation along axons and dendrites of neuron makes an access to CNS and ganglia. These biokinetics are dependent on NSP surface chemistry. Risk assessments of NSP include appropriate and relevant doses/concentration selections, the increase effects in the organism and the benefits of possible desirable effects. An interdisciplinary team approach is desirable for nanotoxicology research and an appropriate risk assessment.

Ammonium thiocyanate 농도가 주정효모(Saccharomyces brenerei Hefe-Rasse XII, Saccharomyces formosensis No. 396 IAM) 및 맥주효모(Saccharomyces cerevisiae IAM)의 발효작용에 미치는 영향 (The effect of the ammonium thiocyanate on the fermentation of the yeasts.(Saccharomyces brenerei-Hefe-Rasse XII, Saccharomyces formosensis No. 396 IAM) and Saccharomyces cerevisiae IAM))

  • 조운복;이상태
    • 미생물학회지
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    • 제6권1호
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    • pp.29-35
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    • 1968
  • There are many reports on the effect of salts to the fermentation of the yeasts, but there are a few reports on the effect of the ammonium thiocyanate(NH$_4CNS$) on the fermentation of the yeasts(Saccharomyces brenerei-Hefe-Rasse X11, Saccharomyces formosensis No. 396 IAM and Saccharomyces cerevisiae IAM). A study has been made on the effects of the ammonium thiocyanate on the fermentation of the above yeasts. The results of the research are as belows: 1) The addition of 0. 00001 mol. of ammonium thiocyanate makes the fermentation of the yeast(Sacch. formosensis No. 39 IAM) facilitate, but has not influenced the another yeast (Sacch. brenerei-Hefe-Rasse XII). 2) The addition of 0. 001 mol. of ammonium thiocyanate makes fermentation of Rases XII the fastest, but the on other yeast (Sacch. formosensis No - 396 IAM) was accelerated by the addition of 0. 1 mol., and it seems to have abnormal fermentation by the addition of 0. 0001 mol. The addition of ammonium thiocyanate(0. 00001-0. 001 mol.) inhibited the fermentatirn of the yeast(Sacch. cerevisiae IAM), but the concentration of 0. 1 mol. does not interrupt the fermentation of Sacch. cerevisiae IAM and increased the fermentation. 3) The order of effects to the fermentation of each yeast is Sacch. brenerei-Hefe-Rasse XII, Sacch. formosensis No. 396 IAM, Sacch. cerevisiae IAM.

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