지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2006.12
- 수록면
- 59 - 67 (9page)
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초록· 키워드
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Aims: Acupuncture has been used for the treatment of essential hypertension, but the efficacy and the mechanism of acupuncture in prevention of hypertension are still unclear. We tested the hypothesis that electroacupuncture (EA) applied to Baekhoe (GV20) changes NO/NOS system during development of hypertension in spontaneously hypertensive rats (SHR) , and thereby causes the delay of development of hypertension in SHR.
Methods: The male SHR rats in the developmental stages of hypertension (7-8 weeks) were randomly divided into three groups (control group, GV20 acupuncture group, and tail acupuncture group). And the age matched Wistar Koyto Rats (WKY) were randomly divided into two groups (negative control, GV20 acupuncture group). EA treatments (10Hz, 1mA, 0.1ms) were carried out for 25 mini day for five consecutive days. The systolic blood pressure (SBP) was determined in conscious rats by the tail-cuff method using automatic BP mornitoring system. We investigated the activations of inducible NO synthase (iNOS) in nuclei of solitary tract (NTS) and rostral ventrolateral medulla (RVLM) of SHR by the western blotting method.
Results: The SBP after the termination of EA stimulation applied to the GV20 was stabilized at 169.14±3.67 ㎜Hg which is lower value than that of the control group. The SBP of control group was elevated to 178.14±3.49 ㎜Hg. In addition, we evaluated NOS activity as well as iNOS protein expression of NTS and RVLM in both of SHR and WKY. The iNOS activity in NTS was significantly higher in SHR than in WKY. Furthermore, the iNOS activity of NTS showed significant decreases in EA groups compare to that of non treated SHR group. Although iNCS expression of RVLM showed non significant changes between SHR and WKY, EA significantly enhanced the iNCS expression in SHR. Our data support the hypothesis that delayed development of hypertension and altered iNOS expression of NTS and RVLM by EA stimulations in SHR rats.
Conclusions: The findings demonstrate that acupuncture can change NO/NCS system in NTS and RVLM, and exert beneficial role on development of hypertension.
Methods: The male SHR rats in the developmental stages of hypertension (7-8 weeks) were randomly divided into three groups (control group, GV20 acupuncture group, and tail acupuncture group). And the age matched Wistar Koyto Rats (WKY) were randomly divided into two groups (negative control, GV20 acupuncture group). EA treatments (10Hz, 1mA, 0.1ms) were carried out for 25 mini day for five consecutive days. The systolic blood pressure (SBP) was determined in conscious rats by the tail-cuff method using automatic BP mornitoring system. We investigated the activations of inducible NO synthase (iNOS) in nuclei of solitary tract (NTS) and rostral ventrolateral medulla (RVLM) of SHR by the western blotting method.
Results: The SBP after the termination of EA stimulation applied to the GV20 was stabilized at 169.14±3.67 ㎜Hg which is lower value than that of the control group. The SBP of control group was elevated to 178.14±3.49 ㎜Hg. In addition, we evaluated NOS activity as well as iNOS protein expression of NTS and RVLM in both of SHR and WKY. The iNOS activity in NTS was significantly higher in SHR than in WKY. Furthermore, the iNOS activity of NTS showed significant decreases in EA groups compare to that of non treated SHR group. Although iNCS expression of RVLM showed non significant changes between SHR and WKY, EA significantly enhanced the iNCS expression in SHR. Our data support the hypothesis that delayed development of hypertension and altered iNOS expression of NTS and RVLM by EA stimulations in SHR rats.
Conclusions: The findings demonstrate that acupuncture can change NO/NCS system in NTS and RVLM, and exert beneficial role on development of hypertension.
목차
Abstract
Ⅰ. 서론
Ⅱ. 재료 및 방법
Ⅲ. 결과
Ⅳ. 고찰
Ⅴ. 결론
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UCI(KEPA) : I410-ECN-0101-2010-519-001423799