• 제목/요약/키워드: Ipsilateral pathway

검색결과 23건 처리시간 0.021초

산수유(山茱萸) 메탄올 추출물이 편측 경동맥 폐색으로 유도된 생쥐의 허혈성 뇌손상에 미치는 영향 (The protective effect of methanol extract of Corni Fructus on brain injury caused by unilateral common carotid artery occlusion in mice)

  • 최나리;조성현;이세은;이민지;조수인
    • 대한본초학회지
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    • 제35권1호
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    • pp.1-8
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    • 2020
  • Objectives : This study was conducted to evaluate the effects of Corni Fructus, the dried fruits of Cornus officinalis Sieb., on unilateral common carotid artery occlusion (UCCAO) in mouse model. Methods : The Corni Fructus used in the experiment was extracted with anhydrous methanol, then filtered and freeze-dried. C57BL/6 mice used in the experiments were conducted left UCCAO surgery to set up UCCAO rodent model for mice. The mice were divided into five groups for evaluate the effect of methanol extract of Corni Fructus (COM) on UCCAO induced ischemic brain injury. The expression levels of nitric oxide in cerebrum and serum, body weight change were measured. To determine the effect of UCCAO and COM administration on brain neurons, morphological changes of the cerebrum through a microscope was conducted. And western blot was performed to confirm the underlying mechanism of neuroprotective effect of COM administration. Results : COM administered UCCAO groups (CO50, CO150, and CO500) had no significant effects on nitric oxide production in ipsilateral hemisphere proteins and sera. The CO500, 500 mg/kg COM administration, attenuated UCCAO-induced p38 inflammatory signaling pathway and inflammatory mediators such as iNOS and COX-2. The CO500 group showed resilient morphological changes of hippocampus neuronal cells about brain damage caused by decreased flow of blood. These group also showed decreased inflammation and cellular stress response in neuronal cells. Conclusions : From these results, COM has a neuroprotective property via moderating inflammatory factors and cellular stress inducing factors in brain cells.

기저핵 출혈에 의한 교차 소뇌 해리 현상 (Crossed Cerebellar and Cerebral Cortical Diaschisis in Basal Ganglia Hemorrhage)

  • 임준석;유영훈;김희중;이병희;김병문;이종두
    • 대한핵의학회지
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    • 제32권5호
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    • pp.397-402
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    • 1998
  • 목적: 대뇌피질의 구조적 병변이 없는 기저핵 혈종환자에 있어서, 대뇌와 소뇌의 해리 현상에 관해 알아보고자하였다. 대상 및 방법 : CT와 MRI상 혈종이 기저핵에 국한되고, 대뇌 피질의 구조적 병변이 없는 12명의 환자를 대상으로 하였다. Tc-99m ECD PECT검사가 전 예에서 시행되었고, 대조군으로 MRI상 구조적 병변이 없고 SPECT 검사상 육안적으로 정상 소견을 보인 20명의 정신과 환자가 선택되었다. 해리 현상에 의한 rCBF의 변화를 육안적으로 확인하였고, 반정량적 분석을 위해 asymmetric index (AI)를 이용하였다. AI가 기저핵, 시상, 소뇌와 대뇌 피질 (전두엽, 측두엽, 두정엽)에서 측정되었고, 대조군 AI의 (평균+2X표준편차)보다 큰 AI를 가지는 경우를 저혈류로 정의하였다. 결과: 환자군에서 측정된 소뇌와 대뇌 피질의 평균 AI는 대조군과 비교하여 통계학적으로 의미 있게 큰 수치를 보였다 (p<0.05): 소뇌 ($18.68{\pm}8.94$ vs $4.35{\pm}0.94$, 평균 표준표차), 시상 ($31.91{\pm}10.61$ vs $2.51{\pm}1.45$), 기저핵 ($35.94{\pm}16.15$ vs $4.34{\pm}2.08$), 두정엽 ($18.94{\pm}10.69$ vs $3.24{\pm}0.87$), 전두엽 ($13.60{\pm}10.8$ vs $4.02{\pm}2.04$), 측두엽 ($18.92{\pm}11.95$ vs $5.13{\pm}1.69$). 12명의 환자 중 혈종의 반대측 소뇌(10명), 동측 시상 (12명) 동측 두정엽 (12명), 전두엽 (6명), 측두엽 (10명)에서 육안적으로 또한 AI를 이용한 반정량적 분석상 의미 있는 저혈류를 보였다. 결론: 교차소뇌해리 현상과 피질 해리 현상은 기저핵 혈종 환자에서 빈번하게 관찰되었다. 이는 교차 소뇌해리 현상이 기존에 알려진 피질 뇌교 소뇌로 (corticopontocerebellar tract)의 장애가 없이도 발생할 수 있다는 것을 시사한다.

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비연소식(非燃燒式) 구법(灸法) 재료(材料)를 이용한 온열자극(溫熱刺戟)이 체열방사(體熱放射)에 미치는 효과 (Effects of Non-combustible moxibustion on Thermography of Healthy Human Beings)

  • 최원종;김재효;김경식;손인철
    • Korean Journal of Acupuncture
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    • 제21권3호
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    • pp.21-38
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    • 2004
  • Objectives : Moxibustion has been become very useful tool to prevent and treat various diseases with acupuncture in oriental medicine. Expecially, moxibustion combining the heat stimulation and chemical stimulation of Artemisiae Argyi has a non-invasive characteristics comparing to the other therapeutic tools. However, because the moxibustion makes the patient's skin be burn by the combustible feature of moxibustion, most of people have been scared of being scald. Methods : In this study, we have developed new non-combustible moxibustion tools in collaboration with company (Hana Medical, co. and ICURE, co.) and tested the efficacy through effects of moxibustion of Cheon-chu $(ST_{25})$ on the abdominal thermography of health subject. The non-combustible moxibustion has main characteristics of controlled heating to inhibit being scald and heat stimulation lasting over 1 hrs. Also, to induce the chemical stimulation, the bottom contacting with skin was coated by the extract of artemisiae argyi. The volunteers who participating in this study had taken rest for 20 - 30 mins in room temperature $(23-25^{\circ}C)$ before the examination and informed them what to prohibit smoking, drinking and administration of drug for the previous day The thermography of abdomen including a below part of the chest was taken using Infra-Red Imaging System (IR 2000, MEDI-CORE Co., Korea) by time interval of 15 minutes. Results : The results showed that moxibustion of Cheon-chu $(ST_{25})$ had more potencies of changes on all the ROIs of abdominal thermography than those of control group. Also, it was observed that the quantities of thermal changes following moxibustion of Cheon-chu $(ST_{25})$ been increased significantly comparing that of control group at all the ROIs (region of interest). Observed the thermography classified by ROI, however, moxibustion of Cheon-chu $(ST_{25})$ could modulate ipsilateral specific areas concerning to the abdominal pathway of Stomach Meridian. Conclusion : These results suggest that new non-combustible moxibusion has some similarity as like as the conventional moxibustion and moxibustion of Cheon-chu $(ST_{25})$ may modulate thermal changes of abdominal areas.

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