• Proceedings of the Korean Society of Applied Pharmacology
• /
• 1993.04a
• /
• pp.85-85
• /
• 1993

뇌동맥계는 일과성 저혈압에 반응하여 혈관확장이 야기되고, 혈압 상승시에는 혈관수축이 일어남으로서 뇌혈류가 일정하게 조절된다. 이러한 자가조절은 뇌손상 등의 병적 상태에서 야기된다. 연구의 목적은 \circled1 Cromakalim, CGRP(calcitonin-gene related peptide), 및 substance P에 의하여 뇌연막동맥의 직경이 어떻게 변동하는가를 관찰하고 \circled2 이들 신경성 peptide의 작용에 대하여 $K^{＋}$ 통로 개방 봉쇄제인 glibenclamide의 전처치 효과를 검색하고 \circled3 Capsaicin 전처치가 뇌혈류 자가조절에 어떻게 영향을 미치는가를 검색하였다. 그 결과는 다음과 같다. 1. 뇌혈류 자가조절은 대퇴동맥을 통한 사혈에 의하여 혈압하강을 일으킬 때 뇌연막 동맥은 이완하였고, reservoir내의 혈액을 체내로 주입함로서 혈압반전을 일으켰을 때는 혈관 수축이 일어났다. 2. 연막동맥은 glibenclamide (1~3$\mu$M)의 관류에 의하여는 영향을 받아니하였다. 3. 혈압변동에 따른 혈관직경의 변화를 회기직선으로 분석하였다. Glibenclamide 1과 3$\mu$M의 전처치 관류에 의하여 혈압하강에 따른 혈관 이완경사도와 혈압반전에 따른 혈관수축 경사도가 대조군에 비하여 현저히 약화되었다. 4. Cromakalim (0.1-30$\mu$M)의 각 농도를 대뇌표면에 관류시 연막동맥의 기초직경은 약물농도에 의존하여 증가되었고, 이는 glibenclamide (1$\mu$M) 전처치 관류에 의하여 억제되었다. 5. CGRP (0.1~100 nM)와 substance P (0.1~10nM)도 용량에 의존하여 혈관이완을 일으켰다. 전자는 glibenclamide (1$\mu$M) 전처치 관류에 의하여 억제되었으나 후자는 영향을 받지 아니하였다. 6. Capsaicin(50 nmol: intracisternally) 주사에 의하여 뇌혈류자가조절의 변동이 초래되었다. 이상의 결과들을 종합하면 CGRP가 혈압변동에 의하여 반사적으로 유리되고, 이는 glibenclamide-sensitive $K^{＋}$ 통로에 작용하는 것으로 시사된다.

• Journal of Yeungnam Medical Science
• /
• v.23 no.1
• /
• pp.113-117
• /
• 2006

Systemic lupus erythematosus (SLE) is a chronic autoimmune disease that may affect many organ systems including the nervous system. The immune response in patients with SLE can cause inflammation and other damage that can cause significant injury to the arteries and tissues. A 48-year-old woman was admitted to the hospital because of transient monocular blindness. Magnetic resonance imaging and conventional angiography showed severe stenosis of the distal intracranial internal carotid artery. The patient was diagnosed as having SLE but the antiphospholipid antibodies were negative. Amaurosis fugax has not been previously reported as an initial manifestation of SLE in Korea. We report a patient with a retinal transient ischemic attack as the first manifestation of SLE.

• YAKHAK HOEJI
• /
• v.24 no.2
• /
• pp.111-116
• /
• 1980

This study was performed in dogs and chickens to observe differences of responses by species of animals to hypotensive action of Siegesbeckiae Herba, using its ethanol extract. Siegesbeckiae Herba e ethanol extract (SGEE), when injected into the vein of dogs or chickens, elicited depressor actions in both a animals. The hypotensive effects of SGEE in dogs and chickens were markedly inhibited by the pretreatment of atropine, but not affected by bethanidine, propranolol and diphenhydramine. Phentolamine significantly weakened the action of SGEE in dogs, but did not alter the action of SGEE in chickens. SGEE inhibited the pressor action by norepinephrine or carotid artery occlusion, whereas it did not change the pressor action b by angiotensin in dogs.

• Journal of Oriental Neuropsychiatry
• /
• v.19 no.3
• /
• pp.265-276
• /
• 2008

Transient global amnesia(TGA) is a clinical syndrome characterized by sudden, temporary dysfunction of anterograde and recent retrograde memory without other neurologic deficits. Different hypotheses have been considered for its etiology, but it still remains obscure. Recently the diffusion-weighted magnetic resonance imaging(DWI), has been considered as the sensitive tool to detect small punctate hyperintense lesions in the hippocampus in transient global amnesia(TGA). We report two TGA cases, all of them answers to TGA clinical criteria, and one of them showed two dot like high signal intense foci in Rt. hippocampus on DWI.

• 대한상한금궤의학회지
• /
• v.7 no.1
• /
• pp.127-132
• /
• 2015

Objectives: The purpose of this case is to report the effects of Baekho-tang based on Shanghanlun disease pattern identification diagnostic system. Methods : According to diagnostic system based on Shanghanlun provisions, the patient was diagnosed as Gwoleum-byung(厥陰病). Visual analogue scale was used to check the symptoms while the patient taking herbal medicine Baekho-tang for 12 weeks. Results : After taking Baekho-tang, Visual analogue scale in hot flashes markedly decreased 9 to 1. Conclusions : This paper shows an efficient result of using Baekho-tang based on Shanghanlun disease pattern identification diagnostic system. Further studies should be needed to validate the effects of Baekho-tang.

• Annals of Clinical Neurophysiology
• /
• v.8 no.2
• /
• pp.182-185
• /
• 2006

Various immunotherapeutic modalities have been used based on the autoimmune pathogenic mechanisms of myasthenia gravis (MG). Cell-mediated immunity as well as auto-antibodies may play a role in the remission and relapse of MG. We recently experienced two patients with MG who showed spontaneous remission after inadvertent severe leukopenia. These findings suggest that the cell-mediated immune process is important in the treatment of MG, and selective suppression of leukocyte may induce remission in the patients with intractable MG.

• The Korean Journal of Nuclear Medicine
• /
• v.32 no.2
• /
• pp.168-171
• /
• 1998

We present a case in which a patient with acute hemorrhagic gastritis demonstrated abnormal gastrointestinal accumulation of radiotracer during $^{99m}Tc$-methylene diphosphonate(MDP) skeletal scintigraphy. A hemorrhagic gastritis was subsequently demonstrated by endoscopy. The mechanism for the intestinal localization of $^{99m}Tc$-MDP in this patient is not clear, but we guess that the extravasated blood containing the radiopharmaceutical cannot recirculate and stays at the bleeding site, so we can see the intestinal activity.

• Biomolecules & Therapeutics
• /
• v.7 no.3
• /
• pp.234-241
• /
• 1999

The present study assessed the cerebroprotective effect of platelet-activating factor(PAF) antagonists in transient cerebral ischemia of rats. Right middle cerebral artery (MCA) of Sprague-Dawley rats was occluded for 2 hours using an intraluminal filament technique, and was reperfused for 6 hours following cerebral ischemia. The infarct area of seven coronal brain slices was measured morphometrically following stain ing in the 2% 2,3,5-triphenyltetrazolium chloride solution. The changes in regional cerebral blood flow (rCBF) and pial arteriolar diameter were measured by laser-Doppler flowmetry and by a videomicroscopy, respectively. The infarct size was significantly reduced by PAF antagonists, BN 52021 and CV-6209, which were administered i.p. 10 min before MCA occlusion. Pretreatment with PAF antagonists significantly restored the changes in pial arterial diameter as well as those in rCBF during the period of cerebral ischemia-reperfusion. PAF antagonists significantly inhibited the inducible nitric oxide synthase activity in the pial arteries ipsilateral to ischemia. These results suggest that PAF antagonists exert a cerebroprotective effect against ischemic brain damage through an improvement of postocclusive cerebral blood flow.

• Journal of The Korean Society of Clinical Toxicology
• /
• v.20 no.1
• /
• pp.31-34
• /
• 2022

Cerebellar Hippocampal and Basal Nuclei Transient Edema with Restricted diffusion (CHANTER) syndrome is characterized by an altered mental status. The acute MRI lesions show abnormal restricted diffusion imaging bilaterally and symmetrically in the cerebellum, hippocampus, and basal nuclei. This syndrome is an unknown syndrome and is presumed to be mainly an opioidinduced toxidrome. Here, we present a case study wherein we show that it can also be caused by an antidepressant overdose.

• Nuclear industry
• /
• v.37 no.7
• /
• pp.94-97
• /
• 2017

서울대 원자력정책센터에서는 7월 13일 서울 금호고에서 진행된 김익중 교수(동국대학교 의과대학 미생물학교실) 강연의 주요 내용을 보도한 <조선일보>의 7월 15일과 7월 17일 기사 내용 중 원자력의 위험성에 관련된 주요 내용에 대하여 기술적인 확인을 하고 그 결과를 홈페이지에 올렸다.