• 대한한방내과학회지
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• 제26권3호
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• pp.596-604
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• 2005

Objectives : Geopungjeseub-tang(Gufengchushi-tang) has been used in oriental medicine for many centuries as a therapeutic agent for hemiplegia caused by deficiency of qi(氣虛) and damp phlegm(濕痰). This study was performed to evaluate effects of Geopungjeseub-tang extract(GJT) on hemodynamics[regional cerebral blood flow(rCBF), pial arterial diameter(PAD), mean arterial blood pressure(MABP), heart rate(HR)] in normal rats and in rats with cerebral ischemia by middle cerebral artery(MCA) occlusion. Also, effects of adrenergic ${\beta}-receptor$, cyclooxygenase on response to GJT were evaluated. Methods : Laser-doppler flowmetry(LDF) measured changes of rCBF, MABP and HR. Video microscope and width analyzer measured changes in PAD. Results : rCBF and PAD increased after treatment with GJT(10mg/kg, i.v.) during the period of cerebral reperfusion, and pretreatment with indomethacin raised rCBF and PAD increased after treatment with GJT during the same period as above. Pretreatment with propranolol decreased rCBF, but increased after GJT treatment, but raised PAD increased after GJT treatment during this period of reperfusion. Conclusion : CR caused diverse responses were observed in rCBF and PAD after treatment with GJT. ACF action is mediated by adrenergic ${\beta}-receptor$ and cyclooxygenase. Result suggest that GJT has an anti-ischemic effect through the improvement of cerebral hemodynamics and has theraputic potential for cerebral apoplexy.

• 동의생리병리학회지
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• 제23권1호
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• pp.50-56
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• 2009

The present study was designed to investigate the effects of Phamacopuncture therapy using Cervi Pantotrichum Cornu (PC) at BL23 BL52 on the regional cerebral blood flow (rCBF) and mean arterial blood pressure (MABP) in normal rats, then the related mechanisms were also investigated. In addition, the present author also investigated the effects of phamacopuncture therapy at BL23.BL52 on the rCBF in cerebral ischemic rats. The results in normal rats were as follows; PC (3 mg/kg and 5 mg/kg) at BL23 BL52 significantly increased rCBF but decreased MABP. This result suggests that PC at BL23 BL52 significantly increased rCBF by dilating pial arterial diameter. Increase of PC (5 mg/kg)-induced rCBF was significantly inhibited by pretreatment with indomethacin (1 mg/kg, i.p.), an inhibitor of cyclooxygenase and methylene blue ($10{\mu}g/kg$, i.p.), an inhibitor of guanylate cyclase. Decrease of PC (5 mg/kg)-induced MABP was significantly increased by pretreatment with methylene blue but was decreased by pretreatment with indomethacin. These results suggested that the action of PC (5 mg/kg) was mediated by guanylate cyclase. The results in cerebral ischemic rats were as follows ; The rCBF was significantly and stably increased by PC (5 mg/kg) during the period of cerebral reperfusion, which contrasted with the findings of rapid and marked increase in Control group. In conclusion, these results suggest that phamacopuncture therapy using Carthami flos at BL23 BL52 can increase rCBF in normal state, and improve stability of rCBF in ischemic state. In addition, the present author also suggest that related mechanisms are involved in guanylate cyclase pathway.

• 대한한의학방제학회지
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• 제15권2호
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• pp.89-98
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• 2007

Kyungisan (KGS) has been used in oriental medicine for many centuries as a therapeutic agent for treatment of stroke caused by deficiency of qi(氣虛). This study was performed to evaluate effects of KGS extract on the regional cerebral blood flow(rCBF) and mean arterial blood pressure(MABP) in rats. The result of this study were as follow ; 1. KGS significantly increased rCBF irrelevant to MABP in normal rats, 2. To prescribe KGS after pretreatment with indomethacin(IDN) decreased rCBF as compared with control group to administered only KGS in normal rats. But the change of MABP is not significantly as compared with control group. 3. To prescribe KGS after pretreatment with methylen blue( MTB) decreased MABP and rCBF as compared with control group to administered only KGS in normal rats. Especially, it significantly decreased rCBF. These results suggest that KGS increase rCBF by enlargement diameter of pial artery in brain. The active mechanism of KGS is related with prostaglandin activated by cyclooxygenase. So, I suggest that KGS has an anti-ischemic effect through the improvement of cerebral blood flow and can be used for stroke.

• 동의생리병리학회지
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• 제18권3호
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• pp.783-788
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• 2004

Cheonmabanhwa- Tang (CBT) has been used in the Oriental Medicine for many centuries as a therapeutic agent for dizziness due to Poong-Dam, We reported that CBT had effects on the cerebral hemodynamics [regional cerebral blood flow (rCBF), pial arterial diameter (PAD), and mean arterial blood pressure (MABP)] in normal and cerebral ischemic rats. Therefor we designed to determine the mechanism of action of CBT. The changes of rCBF and MABP were determinated by laser-Doppler flowmetry(LDF), and the change of PAD was determinated by video-microscopy. The results were as follows: The CBT-induced increase in rCBF was significnatly inhibited by pretreatment with indomethacin (IDN, 1 ㎎/㎏, i.p.), an inhibitor of cyclooxygenase, or methylene blue (MTB, 10 ㎍/㎏, i.p.), an inhibitor of guanylate cyclase. The CBT-induced increase in PAD was also significantly inhibited by pretreatment with IDN or MTB. The CBT-induced increase in MABP was also significantly inhibited by pretreatment with IDN or MTB. In conclusion, it is suggested that CBT causes a diverse effect on cerebral hemodynamics via mediation of cyclooxygenase and guanylate cyclase.

• 동의생리병리학회지
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• 제18권6호
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• pp.1714-1721
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• 2004

This experimental study was designed to investigate the mechanism of Palmul-Tang(PMT) on the changes of cerebral hemodynamics in rats. The changes of cerebral hemodynamics in normal rats were as follows ; The PMT-induced increase in regional cerebral blood flow was significantly inhibited by pretreatment with indomethacin(1㎎/㎏, i.p.), an inhibitor of cyclooxygenase, and was inhibited by methylene blue(10㎍/㎏, i.p.), an inhibitor of guanylate cyclase. The PMT-induced dilation in pial arterial diameter was significantly inhibited by pretreatment with indomethacin and methylene blue. The PMT-induced increase in mean arterial blood pressure was significantly inhibited by pretreatment with indomethacin but was increased by methylene blue. This results were suggested that the mechanism of PMT was mediated by cyclooxygenase. The changes of cytokine production in cerebral ischemic rats were as follows ; In cytokine production of serum by drawing from femoral arterial blood after middle cerebral arterial occlusion 1hr, sample group was decreased IL-1β and TNF-α production compared with control group, IL-10 production of sample group was similar to that of control group, but sample group was significantly increased TGF-β production compared with control group. In cytokine production of serum by drawing from femoral arterial blood after reperfusion 1hr, sample group was significantly decreased IL-1β production compared with control group and decreased TNF-α production compared with control group. IL-10 production of sample group was similar to that of control group, but sample group was significantly increased TGF-β production compared with control group. In cytokine production of serum by drawing from femoral arterial blood after reperfusion 4 hrs, sample group was significantly decreased IL-1β production compared with control group, but IL-10 production of sample group was similar to that of control group. sample group was increased TNF-α and TGF-β production compared with control group. These results suggested that PMT had inhibitive effect on the brain damage by inhibiting IL-1β and TNF-α production, but by accelerating TGF-β production. The present author thought that PMT had an anti-ischemic effect through the improvement of cerebral hemodynamics and inhibitive effect on the brain damage.

• 동의생리병리학회지
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• 제20권3호
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• pp.575-580
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• 2006

This Study was designed to investigate the effects of Mixture of Bambusae Caulis in Liquamen and Bamboo Extract on the change of regional cerebral blood flow (rCBF) and mean arterial blood pressure (MABP) in normal and cerebral ischemic rats. Experimental materials were as follows ; BE- 1 was Bamboo Extract (BE) extracted with 70% ethyl alcohol, BE-11 was BE extracted with distilled water at $121^{\circ}C$ for 30 min, BE-111 was BE extracted with distilled water at $121^{\circ}C$ for 3 hrs, MLC was mixture of Bambusae Caulis in Liquamen (BCL) and BE-111 mixed at the ratio of 1 to 100 (MLC100), 1 to 50 (MLC50), 1 to 20 (MLC20), 1 to 10 (MLC10), 1 to 5 (MLC5). The results were as follows , The Changes of BE- 1 on the rCBF and MABP in normal rats were not showed, BE- 11 significantly decreased rCBF in a dose-dependent manner Dut increased MABP in a dose-dependent manner. BE-111 increased rCBF in a dose-dependent manner, MLC significantly increased rCBF in a dose-dependent manner and increased MABP in a dose-dependent manner. rCBF was significantly and stably increased by MLC5 (1 mg/kg, i.p.) during the period of cerebral reperfusion, which contrasted with the findings of rapid and marked increase in control group. As results above ; The present author thought that BE- 111 and MLC increased rCBF by dilating pial arterial diameter.

• 동의생리병리학회지
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• 제17권5호
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• pp.1194-1201
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• 2003

Jaeumgenby-tang(JGT) have been used in oriental medicine for many centries as a therapeutic agent of vertigo caused by deficiency of qi(氣) and blood(血). Effect of Aurantii Fructus(AF) take off the phlegm by promoting the circulation of qi, Gastrodae Rhizoma(GR) has effects treating for headarch, vertigo by calming the liver and suppressing hyperactivity of the liver-yang (陽). I investigated whether injection of JGT adding AFㆍGR extract(JTG) affects cerebral hemodynamics [regional cerebral blood f1ow(rCBF), pial arterial diameter(PAD) in cerebral ischemia rats by MCA occlusion method, and I designed to make manifest whether JTG is mediated by adrenergic β-receptor, cyclooxygenase or guanylate cyclase. The changes of rCBF was determinated by laser-doppler flowmetry(LDF), and the changes of PAD was determinated by video microscope and width analyzer. The results were as follows in cerebral ischemic rats; The changes of rCBF and PAD were increased stabilizly by treatment with JTG(10 ㎎/kg, i.v.) during the period of cerebral reperfusion, and pretreatment with propranolol and indomethacin were increased JTG induced increase of rCBF and PAD during the period of cerebral reperfusion. Pretreatment methylene blue was decreased JTG induced increase of rCBF and PAD during the period of cerebral reperfusion. In conclusion, JTG causes a diverse response of rCBF and PAD, and action of JTG is mediated by adrenergic β-receptor and cyclooxygenase. I suggest that JTG has an anti-ischemic effect through the improvement of crebral hemodynamics.

• Journal of Acupuncture Research
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• 제19권5호
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• pp.92-111
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• 2002

Objective : Carthami Flos has been used as a herb to promote blood circulation to remove blood stasis in oriental medicine for many centuries, and Amun(GV15) has been used as a meridian point to treat apoplexy etc. To investigate treatment of cerevral vascular disease(CVA) by promoting blood circulation and removing blood stasis(活血化瘀法), we observed the experimental effects and mechanism of auqa-acupunture of Carthami Flos(ACF) injected into GV15 on cerevral hemodynamics and cardiovascular system of rats. Method : Aqua-acupuncture of Carthami Flos(ACF) was injected into GV15, and then we investigated experimental effects and mechanism of ACF on the cerebral hemodynamics[regional cerebral blood flow(rCBF), pial arterial diameter(PAD), meal arterial blood pressure(MABP)] and cardiovascular system[cardiac muscle contractile force(CMF), heart rate(HR)I by pretreatment with methylene blue(MTB) and indomethacin(IDN). The changes in rCBF, MABP, CMF and HR were tested by Laser Doppler Flowmetry(LDF), and the changes in PAD was determinated by video microscopy methods and video analyzer. Results :The results were as follows in normal rats ; The changes of rCBF and PAD were significantly increased by ACF($120{\mu}{\ell}/kg$) in a injected time-dependent manner, but MABP was not changed by ACF. The changes of cardiovascular system were increased by ACF in a injected time-dependent manner. And pretreatment with MTB was significantly inhibited ACE induced increase of rCBF and PAD, and was decreased ACF induced increase of HR. And pretreatment with IDN was increased ACF induced MABP and CMF. And the results were as follows in cerebral ischemic rats ; The changes of rCBF was increased stabilizly by treatment with ACF($120{\mu}{\ell}/kg$) in during the period of cerebral reperfusion, but pretreatment with MTB was increased ACF induced increase of rCBF during the period of cerebral reperfusion. The results were as follows in normal rats ; The changes of rCBF and PAD were significantly increased by ACF($120{\mu}{\ell}/kg$) in a injected time-dependent manner, but MABP was not changed by ACF. The changes of cardiovascular system were increased by ACF in a injected time-dependent manner. And pretreatment with MTB was significantly inhibited ACF induced increase of rCBF and PAD, and was decreased ACF induced increase of HR. And pretreatment with IDN was increased ACF induced MABP and CMF. And the results were as follows in cerebral ischemic rats ; The changes of rCBF was increased stabilizly by treatment with ACF($120{\mu}{\ell}/kg$) in during the period of cerebral reperfusion, but pretreatment with MTB was increased ACF induced increase of rCBF during the period of cerebral reperfusion Conclusions : In conclusion, ACF causes a diverse response of rCBF, PAD an HR, and action of ACF is mediated by cyclic GMP. I suggested that ACF has an anti-ischemic effect through the improvement of crebral hemodynamics in a transient cerebral ischemia.

• 대한예방한의학회지
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• 제19권3호
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• pp.155-170
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• 2015

Objective : Jaeumgeonbitang have been used in Korean medicine for many centuries as a therapuetic agent of vertigo. JAE was extract of Jaeumgeonbitang adding Evodiae Fructus. The effects of JAE on the cerebral blood flow and blood pressure is not known. This study was designed to investigate the effects of JAE on the ischemic crebral injuries. Method : We performed to investigate effects of JAE on the changes of regional cerebral blood flow(rCBF) and mean arterial blood pressure (MABP) in normal and ischemic rats, and further to determine the mechanism and cytokines production ($IL-1{\beta}$, $TNF-{\alpha}$, IL-10, $TGF-{\beta}$) of JAE. Results : In normal rats, JAE significantly increased rCBF and significantly decreased MABP in a dose-dependent manner. This result suggested that JAE significantly increased rCBF by dilating pial arterial diameter. Increase of JAE-induced rCBF was significantly inhibited by the pretreatment with indomethacin (1 mg/kg, i.p.), an inhibitor of cyclooxygenase, and was significantly inhibited by methylene blue ($10{\mu}g/kg$, i.p.), an inhibitor of guanylate cyclase. Decrease of JAE-induced MABP was significantly increased by the pretreatment with indomethacin (1 mg/kg, i.p.), an inhibitor of cyclooxygenase. So, these results suggested that the mechanism of JAE was mediated by cyclooxygenase. In ischemic rat, the rCBF was significantly and stably increased by JAE (10 mg/kg, i.p.) during the period of cerebral reperfusion, which contrasted with the findings of rapid and marked increase in Control group. In cytokine production of serum by drawing from femoral arterial blood at 1 hr after reperfusion, Sample group (JAE 10 mg/kg treated group) was significantly decreased $IL-1{\beta}$ and $TNF-{\alpha}$ production compared with Control group. In cytokine production of serum by drawing from femoral arterial blood at 1 hr after reperfusion, Sample group was significantly increased IL-10 production compared with Control group. Conclusion : These results suggested that JAE was significantly and stably increased regional cerebral blood flow by inhibited $IL-1{\beta}$ and $TNF-{\alpha}$ production, and increased IL-10 production.

• 한방재활의학과학회지
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• 제23권3호
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• pp.37-44
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• 2013

Objectives The present study was designed to investigate the effects of bee venom extract pharmacopunctureon (BVP) at 肩井 (GB21) on the changes in regional cerebral blood flow (rCBF) and mean arterial blood pressure (MABP) in normal rats, and further to determine the mechanisms. Methods We purchased rats about 300g and prepared diluted BVP with normal saline. And we injected diluted BVP to rats gradually progressed from 0.001 mg/kg to 0.1 mg/kg at corresponding region to GB21. After injection, we measured the changes in rCBF and MABP of rats. In addition, to determine the mechanisms of this changes, we did the same experiments twice more after pretreatment with indomethacin and metylene blue separately. Results BVP significantly increased rCBF but decreased MABP, suggesting that BVP potently may increase rCBF by dilating pial arterial diameter. Furthermore, the increase of BVP-induced rCBF and the decrease of BVP-induced MABP were significantly blocked by pretreatment with cyclooxygenase inhibitor, indomethacin (1 mg/kg, i.p.). But the increase of BVP-induced rCBF and the decrease of BVP-induced MABP were not blocked by pretreatment with guanylate cyclase inhibitor, methylene blue (0.01 mg/kg, i.p.). Conclusions These findings indicate that the action of BVP is mediated by cyclooxygenase. Furthermore these results suggest that BVP can increase rCBF in normal state, as well as improve the stability of rCBF in ischemic state.