• Title/Summary/Keyword: Regional blood flow

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The Effects of Jujadokseo-hwan on the Activation of Brain and Neuroprotactive Effects (주자독서환의 뇌기능 활성 및 신경세포 보호효과)

  • Lee, Yu-Gyung;Chae, Jung-Won
    • The Journal of Pediatrics of Korean Medicine
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    • v.23 no.3
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    • pp.241-262
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    • 2009
  • Objectives This study is designed to investigate the effects of Jujadokseo-hwan on the brain ability and inducing oxidative stresses. Methods We measured the changes of regional cerebral blood flow and mean arterial blood pressure. Then we analyzed histological examination, immunohistochemistric response and anti-oxidant activity of Jujadokseo-hwan. Results 1. Treatment of Jujadokseo-hwan significantly increased regional cerebral blood flow but decreased mean arterial blood pressure. 2. Treatment of Jujadokseo-hwan-induced increase of regional cerebral blood flow was significantly inhibited by pretreatment with indomethacin (1 mg/kg, i.p.), an inhibitor of cyclooxygenase. 3. In histological examination through TTC stain, group I was no change, but group II showed that discolored in the most cortical part. Group III showed that decreased discolor in the cortical part. 4. In immunohistochemistric response of BDNF, group II showed that lower response effect. Group III showed that increase response effect. 5. Treatment of Jujadokseo-hwan increased proliferation rates of Glial cell effectively 6. Treatment of Jujadokseo-hwan accelerated proliferation rates of C6 cells in vitro. In addition, protective effects on cell death induced by paraquat, rotenone and hydrogen peroxide. In addition, activity of SOD were increased by treatment with Jujadokseo-hwan. Conclusions In conclusion, Jujadokseo-hwan can improve of the brain ability, learning ability, memory ability and induce ischemic brain injuries.

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Mechanism on the Changed-Regional Cerebral Blood Flow and Mean Arterial Blood Pressure by CheonghunHwadam-tang Adding Schiznepetae Herba in Rats (청훈화담탕가형개로 인해 변동된 국소뇌혈류량 및 평균혈압의 작용기전)

  • Min Byeng Il;Im Gwang Mo;Jeong Hyun Woo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.16 no.4
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    • pp.701-706
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    • 2002
  • CheonghunHwadam-tang(CHT) have been used in oriental medicine for many centuries as a therapeutic agent of vertigo by wind, fire and phlegm. CHTS was CHT adding Schizonepetae Herba. The effects of CHTS on the cerebral blood flow and blood pressure is not known. The purpose of this Study was to investigate effects of CHTS on the regional cerebral blood flow(rCBF) and mean arterial blood pressure(BP), action-mechanism of CHTS-induced changed-rCBF and BP. The changes of rCBF and BP was determinated by Laser-Doppler Flowmetry(LDF). The results were as follows ; CHTS extract was increased significantly rCBF in a dose-dependent, but was not changed BP compared with CHTS non-treated group. Pretreatment with propranolol, indomethacin and methylene blue were inhibited CHTS induced increase of rCBF, propranolol(all CHTS-treated group) and indomethacin(CHTS 0.01 mg/kg) of them were significantly decreased. Pretreatment with propranonol and indomethacin were inhibited CHTS induced increase of BP, but pretreated with methylene blue was significantly accelerated BP in high dosage. This results suggest that CHTS increased rCBF by dilating pial arterial diameter and the action of CHTS is also mediated by adrenergic β -receptor and cyclooxygenase.

Exterimental Effects of Acupuncture on the Regional Cerebral Blood Flow and Mean Arterial Blood Pressure in Rats (혈위자침(穴位刺鍼)이 백서(白鼠)의 국소뇌혈류량(局所腦血流量)과 혈압(血壓)에 미치는 실험적(實驗的) 효과(效果))

  • Ahn, Yung-Sun;Park, Chun-Ha;Cho, Myung-Rae;Yoon, Yeo-Choong
    • Journal of Acupuncture Research
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    • v.18 no.5
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    • pp.147-154
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    • 2001
  • Amun(GV15), Habkook(LI4) and Shinsu(B23) have been used as a meridian point for apoplexy, hypertention, vertigo etc. The effects of GV 15, LI4 and B23 on the vascular system is not known. The purpose of this Study was to investigate the effect of several meridian points on the regional cerebral bloof flow(rCBF), mean arterial blood pressure(BP) in rats. The changes of BP and rCBF were tested Laser-Doppler Flowmetry(LDF). Results : The results of this Study were obtained as follows ; 1. GV15 and LI4 were increased significantly rCBF. 2. GV15, LI4 and B23 were increased BP, but have not significance. Conclusion : This results suggest that GV15 was increased rCBF by increasing pial arterial diameter, and LI4 was increased rCBF by increasing BP.

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Effects in Blood Pressure and Cerebral Blood Flow with Green Ginger (Zingiber officinale Roscoe) and Development of Health Drink by Using It (생강이 혈압과 뇌혈류량에 미치는 영향 및 이를 이용한 건강음료의 개발)

  • Baek, Seung-Hwa;Han, Jong-Hyun;Park, Sung-Hye
    • Journal of the Korean Society of Food Culture
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    • v.19 no.2
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    • pp.150-157
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    • 2004
  • As an attempt to develop new functional health beverage by using medicinal herb, green ginger(Zingiber officinale Roscoe), we investigated the effect of Zingiber officinale on blood pressure and regional cerebral blood flow (rCBF) of rats with Zingiber officinale extracts. Zingiber officinale extract increase rCBF significantly. The drink produced consisted of Zingiber officinale extract 1.825%, maltitol syrup 17.0%, citric aicd 0.06%, ascorbic acid 0.02%, stevioside 0.001%, ginger flavor 0.11% and water. Brix, pH and acidity of product were 13.7, 4.4 and 0.09, respectively. This drink had good score by the sensory evaluation. The above results showed that development of such functional beverage using Zingiber officinale can used as a functional material improving blood circulation in beverage industry.

Effects of Sasim-tang Water Extract on Blood Pressure and Regional Cerebral Blood Flow Volume in Rats (사심탕(瀉心湯)이 백서(白鼠)의 혈압(血壓) 및 국소(局所) 뇌혈류량(腦血流量)에 미치는 영향(影響))

  • Lee, Kwang-Gyu;Moon, Byung-Sun;Lee, In;Kim, Jin-Su;Lee, Key-Sang
    • The Journal of Internal Korean Medicine
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    • v.21 no.3
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    • pp.417-424
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    • 2000
  • Objective : The purpose of this study was to investigate the effects of Sasim-tang water extract on the cardiovascular systems including changes of blood pressure and regional cerebral blood flow volume (rCBF) in male Sprague-Dawely rats. Methods : The changes of blood pressure were recorded by data acquisition system composed of MacLab and Macintosh computer. The changes of rCBF were observed by Laser-Doppler flowmetry through a opened cranial window. Results : 1. The changes of blood pressure was not affected by Sasim-tang extract intravenous injection in rats. 2. After pretreatment with propranolol(3mg/kg), L-NNA(10mg/kg) and 000(10mg/kg), the changes of blood pressure was not affected by Sasim tang extract intravenous injection in rats. 3. The changes of rCBF was increased in dose-dependent manner by Sasim-tang extract intravenous injection in rats. 4, After pretreatment with propranolol(3mg/kg), ODQ(10mg/kg) and L-NNA(10mg/kg), rCBF was significantly decreased in dose- dependent manner by Sasim-tang extract intravenous injection in rats. Conclusions : These results suggest that Sasim-tang was related to the regulation of the sympathetic nerve system, nitric oxide synthesis and synthesis of cyclic GMP.

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Effects of Yuldahansotang(熱多寒少湯) water extract on Blood Pressure, Regional Cerebral Blood Flow and Pial Arterial Diameter (열다한소탕(熱多寒少湯)이 혈압(血壓), 국소뇌혈류량(局所腦血流量) 및 뇌연막동맥(腦軟膜動脈)에 미치는 영향(影響))

  • Choi, Yong-joon;Kim, Kyung-yo;Han, Jong-hyun;Kang, Sung-yong
    • Journal of Sasang Constitutional Medicine
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    • v.10 no.1
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    • pp.285-293
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    • 1998
  • Yuldahansotang(YH) has been used in Sasang(四象) constitution medicine for many years as a therapeutic agent for cerebral disease. The effect of YH on the vascular system is not known. The purpose of this study was to determine the effect of YH on blood pressure, regional cerebral blood flow(rCBF) and pial arterial diameter of rats. 1. Blood pressure decreased by YH in rats. 2. rCBF was increased by YH in a dose-dependent manner. 3. Pretreatment with propranolol, methylene blue and indomethacin significantly inhibited YH induced increase in rCBF. 5. Blood pressure increased by Radix Puerariae(RP) and Radix Ligustici Tenuissimae(RLT) but Radix Scutellariae(RC) decreased blood pressure in rats. 6. rCBF was increased by RP and RLT in a dose-dependent manner but RC decreased low dosage, and RC increased high dosage. 7. Pial arterial diameter was increased by YH in a dose-dependent manner. 8. Pretreatment with propranolol significantly inhibited the increased in pial arterial diameter induced by YH. These results suggest that YH causes a diverse response of blood pressure, regional cerebral blood flow(rCBF) and pial arterial diameter. The increase in rCBF is also mediated by prostaglandins, cyclic GMP and adrenergic ${\beta}$ receptor and the increase in pial arteral diameter is mediated by adrenergic ${\beta}$ receptor.

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Experimental Effects of Aqua-Acupuncture of Carthami Flos on the Regional Cerebral Blood Flow and Mean Arterial Blood Pressure in Rats (홍화약침(紅花藥針)이 국소뇌혈류량(局所腦血流量) 및 평균혈압(平均血壓)에 미치는 실험적(實驗的) 영향(影響))

  • Kim, Sung-wook;Jeong, Hyun-woo;Wei, Tung-shuen;Cho, Myeng-rae;Yun, Yeo-choong
    • Journal of Acupuncture Research
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    • v.21 no.2
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    • pp.167-181
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    • 2004
  • Objective : Carthami Flos has been used as a herb to promote blood circulation to remove blood stasis in oriental medicine for many centuries. To investigate treatment of cerebral vascular disease(CVA) by promoting blood circulation and removing blood stasis(活血化瘀法), we observed the experimental Effects of Aqua-Acupuncture of Carthami Flos on the Regional Cerebral Blood Flow and Mean Arterial Blood Pressure in Rats. Method : When aqua-acupuncture of Carthami Flos(ACF) was injected into LI4, Liv3, B23, B62, GV16, experimental effects of ACF on the regional cerebral blood flow(rCBF) and mean arterial blood pressure(MABP) is not known. Therefor, this study was designed to investigate the effects of ACF on the change of cerebral hemodynamics. The changes of rCBF and MABP were tested by Laser Doppler Flowmetry(LDF). Results : When ACF was injected into LI4, change of rCBF and MABP were decreased in a injected time-dependent manner. When ACF was injected into Liv3, change of rCBF and MABP were decreased in a injected time-dependent manner. When ACF was injected into B23, change of rCBF was significantly increased in a injected time-dependent manner, MABP did not change. When ACF was injected into B62, change of rCBF was increased in a injected time-dependent manner, change of MABP was significantly decreased after injection 60min. When ACF was injected into GV16, change of rCBF and MABP were similar to the change of normal. Conclusions : In conclusion, I suggested that ACF(LI4, Liv3) has an effect that depress the blood pressure & cerebral hemodynamic acceleration and ACF(B23, B62) has an anti-ischemic effect through the improvement of crebral hemodynamics.

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Findings of $^{99m}TC-HMPAO$ Regional Cerebral Blood Flow SPECT in a Case of Herpes Simplex Encephalitis (단순포진 뇌염의 $^{99m}TC-HMPAO$ 국소 뇌혈류 SPECT의 소견)

  • Ahn, Myeong-Im;Lee, Sung-Yong;Kim, Jong-Woo;Bahk, Yong-Whee
    • The Korean Journal of Nuclear Medicine
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    • v.23 no.1
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    • pp.85-87
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    • 1989
  • Herpes simplex encephalitis (HSE) is one of the fulminant necrotizing, often fatal sporadic form of the encephalitis caused by herpes simplex type I virus. Characteristically, there is early and almost constant involvement of one or both temporal lobes, although there are common additional areas of involvement. Appropriate early treatment following correct diagnosis by clinical findings, CSF study, EEG and several radiological studies including angiography, redionuclide studies, CT or MRI can reduce its mortality and severity of the sequelae. We report a case of HSE diagnosed by adjuvant study of $^{99m}Tc-HMPAO$ regional cerebral blood flow SPECT, which showed a marked increase in bitemporal cerebral blood flow in a 24-year-old man.

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Effect of Yongyanggaktang(YYG) on Regional Cerebral Blood Flow in Rats (영양각탕(羚羊角湯)이 뇌혈류량(腦血流量)에 미치는 영향(影響))

  • Kang Sung-Hyun;Yun Young-Gab
    • Herbal Formula Science
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    • v.10 no.1
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    • pp.105-112
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    • 2002
  • Yongyanggaktang has been used in oriental medicine as a therapeutic agent for cerebral disease and eclampsia for many years. The purpose of this study was to determine the effect of Yongyanggaktang and its exception of Cornu Saigae Tataricae(羚羊角) in YYG about regional cerebral blood flow(rCBF) in rats. 1. rCBF was increased by Yongyanggaktang in dose dependently. 2. rCBF was increased by exception of Cornu Saigae Tataricae(羚羊角) in YYG at high dosages. 3. rCBF was decreased by Yongyanggaktang pretreated propranolol. 4. L-NNA did not affect rCBF. 5.ODQ did not affect rCBF. Above the results. Yongyanggaktang relates to the symphathetic action.

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Effects of Acanthopanax Sessiliflorus $S_{EEM}$ Ethyl Alcohol Extract on the Cerebral Blood Flow and Mean Arterial Blood Pressure in Normal & Ischemic Rats (오갈피 에탄올 추출물이 뇌혈류 및 혈압에 미치는 효과)

  • Rho, Young-Ho;Jeon, Byung-Gwan;Jeong, Hyung-Woo
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.4
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    • pp.882-886
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    • 2006
  • This study was designed to investigate the effects of Acanthopanax sessiliflorus 5.,M (ASS) on the regional cerebral blood flow (rCBF) and mean arterial blood pressure (BP) in normal rats and ischemic rats. Experimental groups of rCBF and BP in normal and ischemic rats as follows ; ALE was injected ASS leaves 45% ethyl alcohol extract, ASE was injected ASS stems 45% ethyl alcohol extract, ARE was injected ASS roots 45% ethyl alcohol extract. The results were as follows ; In normal rats, ALE and ARE significantly increased rCBF in a dose-dependent manner, but ASE significantly decreased rCBF and MABP in a dose-dependent manner, ALE increased MABP In ischemic rats, rCBF was significantly and staDly improved by ARE (10 mg/kg, i.p.) during the period of cerebral reperfusion, which was contrasted with the findings of rapid and marked increase in control group. From the above results, it was thought that all part of Acanthopanax sessiliflorus $S_{EEM}$ was effective for hemodynamics and especially ARE was more effective than other parts.