• 제목/요약/키워드: cortex

검색결과 2,567건 처리시간 0.029초

Effects of the Bee Venom Herbal Acupuncture on the Neurotransmitters of the Rat Brain Cortex

  • Yun, Hyoung-Seok;Lee, Jae-Dong
    • 대한약침학회지
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    • 제4권1호
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    • pp.125-139
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    • 2001
  • In order to study the effects of bee venom herbal acupuncture on the neurotransmitters of the rat brain cortex, herbal acupuncture with the bee venom group and normal saline group was performed bilaterally on the point corresponding to LI 4 of the rat. The average optical density of the neurotransmitters from the cerebral cortex was analyzed 30 minutes after the herbal acupuncture with immunohistochemical methods. The results were as follows: 1. The density of NADPH-diaphorase in the bee venom group was increased significantly at the motor cortex, visual cortex, auditory cortex, cingulate cortex, retrosplenial cortex, and perirhinal cortex, compared to the normal saline group. 2. The average optical density of vasoactive intestinal peptide in the bee venom group had significant changes at the insular cortex, retrosplenial cortex, and perirhinal cortex, compared to the normal saline group. 3. The average optical density of neuropeptide-Y in the bee venom group increased significantly at the visual cortex and cingulate cortex, compared to the normal saline group.

ARM Cortex-M0 DesignStart를 활용한 커스텀 시스템 설계 및 검증 (Custom system design and verification using ARM Cortex-M0 DesignStart)

  • 이성룡;유호영
    • 전기전자학회논문지
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    • 제24권2호
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    • pp.486-491
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    • 2020
  • 본 논문은 ARM Cortex-M0 DesignStart를 기반으로 한 커스텀 시스템을 설계하는 방식을 정리하였다. ARM사에서 무료로 공개 배포하고 있는 ARM Cortex-M0 DesignStart를 활용하여 사용자가 원하는 ARM Cortex-M0 기반의 커스텀 시스템을 구현할 수 있다. 구현에 앞서 ARM Cortex-M0 기반의 하드웨어 구조와 특징을 살펴보고, 제공된 소프트웨어에 대하여 기술한다. 그리고 ARM Cortex-M0 DesignStart의 CMSDK(Cortex-M System Design Kit)을 활용하여 ARM Cortex-M0 기반의 UART 시스템 구현 및 테스트코드를 사용한 검증을 통해 ARM Cortex-M0의 커스텀 시스템 설계할 수 있음을 보인다.

치매와 관련된 뇌영역에 투사되는 경혈(외관(SJ5), 내관(Pe6), 삼음교(SP6) 및 현종(GB39))의 탐색에 관한 신경해부학적 연구 (Neuroanatomical studies on acupoints(SJ5, Pe6, SP6 and GB39) projecting to the brain area related to dimentia using neural tracer, pseudorabies virus in mouse)

  • 이창현;김태헌;이상룡;육태한
    • Journal of Acupuncture Research
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    • 제20권6호
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    • pp.168-181
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    • 2003
  • Objective: The neuroanatomical studies on the acupoints(Waiguan(SJ5), Neiguan(Pe6), Sanyinjiao(SP6) and Xuanzhong(GB39)) projecting to the brain area related to dimentia using the pseudorabies virus (PRV-Ba strain) in the mouse was described. Methods: The common locations of the brain projecting to the Waiguan, Neiguan, Sanyinjiao and Xuanzhong following injection of PRV-Ba were histochemically observed. The results were as follows Results : 1. PRV-Ba labeled areas in medulla oblongata, pons and midbrain were similar to 4 acupoints, theses areas were related to autonomic center. 2. PRV-Ba labeled areas in diencephalon and cebrebrum were differently labeled according to the acupoints. 3. CNS labeled areas in Waiguan were dense labeled in CA1-3 area of hippocampus, amygdaloid nucleus, insular cortex, parietal cortex, entorhinal cortex, perirhinal cortex, dorsal endopiriform cortex, piriform cortex, amygdalopiriform transition and bed n. of stria terminalis. 4. CNS labeled areas in Neiguan were dense labeled in insular cortex, amygdaloid nucleus, parietal cortex, entorhinal cortex, perirhinal cortex, dorsal endopiriform cortex, piriform cortex, amygdalopiriform transition and bed n. of stria terminalis. 5. CNS labeled areas in Sanyinjiao were dense labeled in CA1-3 of hippocampus, suprachiasmatic n., dorsal endopiriform cortex, piriform cortex and bed n. of stria terminalis. 6. CNS labeled areas in Xuanzhong were dense labeled in suprachiasmatic n., dorsal endopiriform cortex and piriform cortex. Conclusions : Following these results, labeled acupoints in brain areas related to dimentia are Waiguan and Neiguan. Common labeled areas are amygdaloid n., entorhinal cortex, amygdaopiriform transition, bed n. stria terminalis and perirhinal cortex.

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가시오갈피 및 두충 혼합엑스의 생리활성 (Physiolosical Activities of Mixed Extracts of Acantopancis senticosi Radicis Cortex and Eucommiae Cortex)

  • 황완균;최수부;김일혁
    • 생약학회지
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    • 제27권1호
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    • pp.65-74
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    • 1996
  • The studies were conducted to investigate the anti-diabetic activities on the hyperglycemia induced by streptozotocin in rats, Anti-fatigue, Decrease of body weight activities in mouse and anti-gastric ulcer activities in stress-induced rats by Mixed Extracts of Acantopanacis senticosi Radicis Cortex and Eucommiae Cortex in Korea. 1. The blood glucose levels of streptozotocin-induced hyperglycemic rats were dose-dependently decreased by administrations of various doses(100, 200, 400, significantly 200+100mg/kg) of Mixed Extracts from Acantopanacis senticosi Radicis Cortex and Eucommiae Cortex. 2. The serum total cholesterol levels of streptozotocin-induced hyperglycemic rats were dose-dependently decreased by administrations of various doses (100, 200, 400, significantly 200+100mg/kg) of Mixed Extracts from Acantopanacis senticosi Radicis Cortex and Eucommiae Cortex. 3. The serum triglyceride levels of streptozotocin-induced hyperglycemic rats were dose-dependently decreased by administrations of various doses(100, 200, 400, significantly 200+100mg/kg) of Mixed Extracts from Acantopanacis senticosi Radicis Cortex and Eucommiae Cortex. 4. The swimming time levels in mouse were dose-dependently extended by administrations of various doses(100, 200, 400, significantly 200+100mg/kg) of Mixed Extracts from Acantopanacis senticosi Radicis Cortex and Eucommiae Cortex. 5. The body weight levels in mouse were dose-dependently decreased by administrations of various doses(100, 200, 400, significantly 200+100mg/kg) of Mixed Extracts from Acantopanacis senticosi Radicis Cortex and Eucommiae Cortex. 6. Stress-induced gastric ulcer were dose-dependently repaired by administrations of various doses(100, 200, 400, significantly 200+100mg/kg) of Mixed Extracts from Acantopanacis senticosi Radicis Cortex and Eucommiae Cortex.

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The Upper Ascending Reticular Activating System between Intralaminar Thalamic Nuclei and Cerebral Cortex in the Human Brain

  • Jang, Sungho;Kwak, Soyoung
    • The Journal of Korean Physical Therapy
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    • 제29권3호
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    • pp.109-114
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    • 2017
  • Purpose: The ascending reticular activating system (ARAS) is responsible for regulation of consciousness. In this study, using diffusion tensor imaging (DTI), we attempted to reconstruct the thalamocortical projections between the intralaminar thalamic nuclei and the frontoparietal cortex in normal subjects. Methods: DTI data were acquired in 24 healthy subjects and eight kinds of thalamocortical projections were reconstructed: the seed region of interest (ROI) - the intralaminar thalamic nuclei and the eight target ROIs - the medial prefrontal cortex, dorsolateral prefrontal cortex, ventrolateral prefrontal cortex, orbitofrontal cortex, premotor cortex, primary motor cortex, primary somatosensory cortex, and posterior parietal cortex. Results: The eight thalamocortical projections were reconstructed in each hemisphere and the pathways were visualized: projections to the prefrontal cortex ascended through the anterior limb and genu of the internal capsule and anterior corona radiata. Projections to the premotor cortex passed through the genu and posterior limb of the internal capsule and middle corona radiata; in contrast, projections to the primary motor cortex, primary somatosensory cortex, and posterior parietal cortex ascended through the posterior limb of the internal capsule. No significant difference in fractional anisotropy, mean diffusivity, and fiber volume of all reconstructed thalamocortical projections was observed between the right and left hemispheres (p>0.05). Conclusion: We reconstructed the thalamocortical projections between the intralaminar thalamic nuclei and the frontoparietal cortex in normal subjects. We believe that our findings would be useful to clinicians involved in the care of patients with impaired consciousness and for researchers in studies of the ARAS.

유백피를 첨가한 된장의 품질 특성 연구 (Characterization of Soybean Paste Doenjang with added Ulmi cortex)

  • 손대열
    • 한국식품저장유통학회지
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    • 제15권4호
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    • pp.518-523
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    • 2008
  • 된장의 고유한 향미에는 영향을 미치지 않으면서 기능성이 향상된 유백피 된장 개발을 위해 유백피 된장의 물리화학적 분석을 통해 다음과 같은 결과를 얻었다. 유백피 된장은 일반 된장에 비해 pH와 염도가 낮으며, 관능검사에서는 단맛이 강하고 짠맛은 약하나 구수한 맛을 나타냄으로써 일반 된장에 비해 전체적으로 높은 기호 도를 확인하였다. 항산화 작용의 지표인 DPPH 소거 활성측정 결과 $IC_{50}$값이 일반된장($155.67{\mu}g/mL$)에 비해 훨씬 높은 항산화 활성($29.16{\mu}g/mL$)을 확인할 수 있었다. 연구 결과 기능성과 기호도 고려할 때 유백피가 1% 첨가된 된장이 가장 적합할 것으로 판단된다.

Synergistic Antifungal Activity of Phellodendri Cortex and Magnoliae Cortex against Candida albicans

  • NA, Hyunjeong;KIM, Tae-Jong
    • Journal of the Korean Wood Science and Technology
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    • 제50권1호
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    • pp.12-30
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    • 2022
  • Many studies on plant extracts have been reported for the treatment of candidiasis caused by Candida albicans, a representative fungal infection. This study demonstrates the synergistic antifungal activity of the combination of Phellodendri Cortex and Magnoliae Cortex, previously reported to have antifungal efficacy. Considering the antifungal efficacy and the separation of the active constituents, berberine and magnolol, hot water extraction and carbon dioxide supercritical extraction were selected for Phellodendri Cortex and Magnoliae Cortex, respectively. A combination of 0.55 g/L hot water extract of Phellodendri Cortex and 0.59 g/L carbon dioxide supercritical extract of Magnoliae Cortex showed synergistic antifungal activity. The synergistic antifungal activity of 160 μM berberine and 100 μM magnolol, which are representative antifungal compounds of Phellodendri Cortex and Magnoliae Cortex, respectively, contributes to the synergistic antifungal effect of their extracts. The additive decrease in cellular ergosterol level and the increased antifungal efficacy by extracellular ergosterol suggest that disruption of the biological function of ergosterol in the cell membrane is not responsible for the synergistic antifungal activity of berberine and magnolol. Synergistic cellular release of chromosomal DNA upon mixing berberine and magnolol indicates that disruption of the cellular structure is responsible for the synergistic antifungal effect of berberine and magnolol.

足部白癬茵의 韓方治療劑 開發을 위한 硏究 (Experimental Study on Antifungal effects of Sophorae Subprostratae Radix, Aconiti Radix, Hibisci Syriaci Cortex and those mixture, Phellodendri Cortex, Sophorae Radix, Torilis Fructus on various species of the dermatophytes)

  • 최규동;권영규
    • 한방안이비인후피부과학회지
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    • 제13권1호
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    • pp.267-279
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    • 2000
  • Minimum inhibitory concentration(MIC) of Sophorae Subprostratae Radix. Aconiti Radix, Hibisci Syriaci Cortex and those mixture. Phellodendri Cortex, Sophorae Radix, Torilis Fructuson on various species of the dermatophytes on Microsporium gypseum, Trichophytone rubrum and Epidermophytone floccosum were determined after 4 weeks of incubation at $25^{\circ}C$ in Sabouraud dextrose broth. The results were summarized as followes : 1. Antifungal effects of Phellodendri $Cortex\;{\cdot}Hibisci$ Syriaci Cortex and mixture of Sophorae Subprostratae Radix, Aconiti Radix, Hibisci Syriaci Cortex on T rubrum which is the most common organism of tinea pedis were more effective than that of the others. 2 These results suggested that herbal medicines such as Phellodendri $Cortex\;{\cdot}Hibisci$ Syriaci Cortex and mixture of Sophorae Subprostratae Radix, Aconiti Radix, Hibisci Syriaci Cortexse can be used to treat tinea pedis and to improve untoward effects associated with the administration of antifugual agents.

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유피(楡皮)와 자유피(刺楡皮)의 항산화(抗酸化) 효능에 대한 연구 (A Study on the Anti-Oxidation Effects of Ulmi Cortex and Hemipteleae Cortex)

  • 김윤상;성낙술;이영종
    • 대한본초학회지
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    • 제20권2호
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    • pp.103-114
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    • 2005
  • Objectives : This studies were carried out to evaluate the effects on anti-oxidation activities in different parts as trunk bark and root bark of Ulmus devidiana Planchon. var. japonica Nakai and Hemipteleae davidii (Hance) Planchon. Methods : For evaluation of antioxidative effects, scavenging activity on superoxide anion radical and DPPH radical were measured. Also, inhibitory activity on LDL oxidation and linoleic acid peroxidation were measured in each samples. In the in vivo test, inhibitory activity on TBARS production, GSH contents in rat liver were measured. SOD, Catalase, GSH-px and ALDH activity were analysed in ethanol extracts of Ulmi Radicis Cortex. Result : 1. Scavenging activity on superoxide anion radical was higher in water extract than in ethanol extract even in low concentration of 50ppm as over 90%. 2. There was no difference between water extract and ethanol extract in the scavenging activity on DPPH radical but, Ulmi Raclicis Cortex and Ulmi Trunci Cortex showed high effect even in low concentration of 10ppm. 3. GSH reduction was prevented and antioxidative activity such as Mn-SOD, GSH-px in the rat liver recovered in the treatment of ethanol extracts of Ulmi Radicis Cortex. Conclusion : Ulmi Radicis Cortex recorded as Ulmi Trunci Cortex in official regulation book. But, it was known that Ulmi Radicis Cortex was more effective than Ulmi Trunci Cortex in most physical activities.

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A Comparison of Phenolic Components in Cinnamon Medicines

  • Kim, Chae Won;Ko, Jun Hwi;Kim, Do Hyeong;Jin, Dezhong;Ko, Sung Kwon
    • Natural Product Sciences
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    • 제28권2호
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    • pp.75-79
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    • 2022
  • As a result of comparing the phenolic components of cinnamon medicines, the total phenolic component content of Cinnamomi Cortex in China was about 2.65 times higher than that of Cinnamomi Cortex in Vietnam. In addition, the total phenolic component content of Vietnamese Cinnamomi Cortex Spissus was about 1.80 times higher than that of Chinese Cinnamomi Cortex Spissus. Meanwhile, Vietnamese Cinnamomi Ramulus showed a content about 3.29 times higher than that of Chinese Cinnamomi Ramulus. Cinnamaldehyde, the main component of cinnamon medicines, showed the same tendency as the total phenolic component content. In terms of the average content of the total phenolic components, Cinnamomi Cortex showed the highest content at 23964 ㎍/g, followed by Cinnamomi Cortex Spissus at 17489 ㎍/g and Cinnamomi Ramulus at 5435.8 ㎍/g. These results showed that Cinnamomi Cortex and Cinnamomi Cortex Spissus with stem bark as usage sites had about 3.22 to 4.41 times higher content of phenolic components than Cinnamomi Ramulus with young branches as usage sites.