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 (Department of Pathology, College of Oriental Medicine, Dongshin University) ;
  • Im Gwang Mo (Department of Pathology, College of Oriental Medicine, Dongshin University) ;
  • Jeong Hyun Woo (Department of Pathology, College of Oriental Medicine, Dongshin University)
  • 민병일 (동신대학교 한의과대학 병리학교실) ;
  • 임광모 (동신대학교 한의과대학 병리학교실) ;
  • 정현우 (동신대학교 한의과대학 병리학교실)
  • Published : 2002.08.01

Abstract

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.

Keywords

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