• 제목/요약/키워드: Hypertensive

검색결과 956건 처리시간 0.024초

고혈압쥐 노화 적혈구에서의 Na, K-ATPase에 관한 연구 (Na, K-ATPase Activity in the Aged Erythrocytes of Hypertensive Rats)

  • 박창길;허강민;석정호;이재흔
    • 대한약리학회지
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    • 제27권1호
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    • pp.33-43
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    • 1991
  • 고혈압백서(1-kidney, 1-clip-hypertensive rat)의 적혈구에서 노화 과정에 따른 Na, K-ATPase의 변동을 관찰하고저 노화적혈구를 분리한다음 세포막에서의 Na-pump 활성도 및 ouabain의 결합실험과 Rb의 세포내 유입실험을 시행하여 다음과 같은 결과를 얻었다. 1. 본 실험에 사용한 고혈압 백서의 혈압은 수축기 및 이완기 혈압이 165.5/119.0 mmHg로 유의하게 증가 하였다. 노화 적혈구의 평균용적(MCV)과 세포막 단백질 함량은 감소되고 혈색소치는 증가되었다. 2. 110 mM NaCl 및 10 mM KCI 존재하에서의 적혈구 세포막 Na, K-ATPase활성도는 대조군에 비해 고혈압군에서 억제 되었으며 양군 모두에서 노화에 의해 그활성도가 감소되었다. 3. 4 mM RbCl존재하에서 Ouabain에 의해 억제되는 Rb의 유입은 정상 및 고혈압군의 노화적혈구에서 약간 감소되었으며 고혈압군의 young erythrocyte에서는 오히려 약간 증가 되었다. 4. 16 mM RbCl 존재하에서 Ouabain에 의해 억제되는 Rb의 유입은 양군의 노화 적혈구에 서는 각군의 young erythrocyte에 비해 약 30-50% 감소되었으며, 고혈압군에서는 특히 young erythrocyte에서 정상군의 young erythrocyte에 비해 유의하게 감소되었다. 5. $0.13{\times}10^{-6}M$$1{\times}10^{-6}M$에서의 ouabain binding은 정상군의 노화적혈구에서는 young erythrocyte에 비해 약간 감소되었으나 고혈압군의 노화적혈구에서는 유의하게 감소되었다. 6. $6{\times}10^-6}M$$64{\times}10^-6M$ 에서의 ouabain binding은 양군의 노화 적혈구에서는 약간 감소되었지만 유의성은 없었으며 고혈압군의 young erythrocyte 및 노화적혈구에서는 정상군의 young erythrocyte및 노화 적혈구에 비해 유의하게 감소되었다. 이상의 결과로부터 (1) 고혈압쥐의 young erythrocyte에서는 low affinity의 Na-pump수의 감소및 molecular activity의 증가, (2) 정상쥐의 노화 적혈구에서는 molecular activity의 저하, (3) 고혈압쥐의 노화적혈구에서는 molecular activity의 저하 및 high affinity와 low affinity의 Na-pump수의 저하등에 의하여 Na-pump의 기능이 변동될 수 있을 것으로 추측된다.

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Changes in the Expressional Levels of SR $Ca^{2+}$ Regulatory Proteins of Hypertensive Rats

  • Park, Miyoung;Lee, Eun-Hee;Lee, Hee-Ran;Kim, Hae-Won
    • 한국생물물리학회:학술대회논문집
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    • 한국생물물리학회 1999년도 학술발표회 진행표 및 논문초록
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    • pp.53-53
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    • 1999
  • We have investigated whether alterations in the expression levels of sarcoplasmic reticulum (SR) $Ca^{2+}$ regulatory proteins in heart and mesenteric arteries from different models of hypertension would occur. Nephrectomied diabetic-hypertensive rats (DM-HT) and spontaneously hypertensive rats (SHR) were used as models of hypertension.(omitted)

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Acute Effects of Korean Earthworm(Lamnodrilus gotai Hatai) Juice on Blood Pressure and Spontaneous Motor Activity in Spontaneously Hypertensive Rats

  • Wie, Myung-Bok;Song, Dong-Keun;Kim, Yung-Hi
    • 생약학회지
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    • 제24권3호
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    • pp.255-257
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    • 1993
  • We investigated the effects of single administration of Korean earthworm(Lamnodrilus gotai Hatai) juice (KEJ) on blood pressure and spontaneous motor activity in spontaneously hypertensive rats (SHR) and normotensive Wistar-Kyoto rats. We report that KEJ lowered blood pressure and spontaneous motor activity in SHR.

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표고버섯의 급여가 SHR 흰쥐의 혈압 및 혈청 지질 수준에 미치는 영향 (Supplementary Effect of Lentinus Edodes on Serum and Hepatic Lipid Levels in Spontaneously Hypertensive Rat)

  • 이성현;박홍주;조소영;정현진
    • Journal of Nutrition and Health
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    • 제37권7호
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    • pp.509-514
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    • 2004
  • This study was conducted to investigate the supplementary effects of Lentinus edodes on blood pressure and blood lipid levels in the Hypertensive Rat. We supplied 3 kinds of experimental diets (Control; CO, cap of Lentinus edodes; LC, and stipe of Lentinus edodes; LS) to spontaneously hypertensive rats (SHR) for 8 weeks. Diet intake, body weight, organ weights, and serum lipid levels were measured. There was no significant difference in diet intake, and body, liver and epididymal fat pad weights among experimental groups. The levels of systolic and diastolic blood pressure were significantly lower in LC and LS groups than CO group. The concentrations of serum total cholesterol were lower in LC and LS groups than CO group. These results suggested that Lentinus edodes decrease blood pressure levels and serum total cholesterol concentration in the spontaneously hypertensive rats. But these effects of Lentinus edodes didn't show any significant difference between animals fed cap and stipe of this mushroom.

Simultaneous Occurrence of Aneurysmal Subarachnoid Hemorrhage and Hypertensive Intracerebral Hemorrhage

  • Song, Kwan-Su;Kim, Chang-Hyun;Lee, Ho-Kook;Moon, Jae-Gon
    • Journal of Korean Neurosurgical Society
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    • 제38권4호
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    • pp.309-311
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    • 2005
  • Intracerebral hemorrhage[ICH] following aneurysmal rupture is found in 34% of the previous literature. However, hypertensive ICH concurrent with subarachnoid hemorrhage[SAH] due to an aneurysm rupture is very unusual with only four cases, to our knowledge, having been previously reported in the literature. We describe a patient who presented with aneurysmal SAH concurrent with hypertensive ICH and review of the literature.

SHR(Spontaneously Hypertensive Rat)를 이용한 송엽, 익모초 추출물의 항고협알 작용 (Anti-hypertensive Effects of Pini Folium and Leonuri Herba Extract on Spontaneously Hypertensive Rat (SHR))

  • 박건구;류재원;최은경;노환성
    • Biomolecules & Therapeutics
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    • 제8권1호
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    • pp.27-31
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    • 2000
  • The aim of this study was to investigate a potential effect of treatment of spontaneously hypertensive rats (SHR) with Pini Folium or Leonuri Herba extracts. Male SHR were treated with extracts for 2 or 4 weeks starting at 13 weeks of age. We found that oral treatment with the methanol extract from Pini Folium or Leonuri Herba (1g/Kg/day) significantly decreased mean blood pressure to 85.4% and 78.6% respectively in compare with untreated control SHR. Treatment with the extract from Pini Folium for 4 weeks during hypertension development phase (starting 9 weeks of age) resulted in a partial prevention of hypertension development. There were no significant differences for body weight between untreated and Pini Folium treated SHR.

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급성 연쇄상구균 감염후 사구체 신염에 동반된 고혈압성 뇌병증 3례의 MRI 소견 (Three Cases of Hypertensive Encephalopathy in Acute Poststreptococcal Glomerulonephritis: MRI Findings)

  • 김형노;윤성민;김종신;이창연
    • Childhood Kidney Diseases
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    • 제1권1호
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    • pp.73-78
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    • 1997
  • The hypertensive encephalopathy is one of sudden convulsive cause in patients with acute post-streptococcal glomerulonephritis, but commonly, after the episode we can observe only mild to moderately hypertension in APSGN at ER. So these remains some question of what causes the convulsion in patients with APSGN. In this article, we report 3 cases of convulsion in APSGN with only moderate hypertension, the etiology of which proved to be due to hypertensive encephalopathy by the brain MRI. We believe that the brain MRI is a very useful test to diagnose the etiology of convulsion in APSGN and if brain edema in occipital lobe is detected by brain MRI, the convulsion would be due to hypertensive encephalopathy and the prognosis will be very good.

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정상 혈압군과 고혈압군에서의 맥파 파라미터 분석에 관한 연구 (Pulse Wave Parameters Changes between Normotensive and Hypertensive Group)

  • 김은근;허현;남기창;허영
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2008년도 제39회 하계학술대회
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    • pp.1999-2000
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    • 2008
  • In this study, pulse wave parameters changes were verified between normotensive and hypertensive group. To measure pulse wave in radial artery, non-invasive tonometric pulse wave measurement device (SphygmoCor PX, AtCor, Austrailia) was used. 136 subjects participated in this study. Among 20 parameters, 16 parameters changes were analysed(p < 0.05) between normotensive(n=104) and hypertensive group(n=32). As a results, several parameters related with pulse pressure, reflective pulse wave, systolic and diastolic function of heart showed significant difference between normotensive and hypertensive group.

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울산 지역 고혈압 노인의 비만 지표 및 혈중 총항산화도 (Obesity Indices and Plasma Total Antioxidant Status in Hypertensive Elderly Living in Ulsan Area)

  • 김정희;김미정;곽호경
    • 대한지역사회영양학회지
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    • 제11권2호
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    • pp.279-288
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    • 2006
  • The role of free radicals in the progression of many diseases and aging has been given a great attention and total antioxidant status (TAS) has shown to be reduced with aging. The incidence of hypertension has shown to be relatively high in the aged population, and it is known to be associated with increased obesity and oxidative stress. The aim of this study was to examine the obesity indices and the total antioxidant status in hypertensive elderly (64y$\alpha$-tocopherol, $\beta$-carotene and ascorbic acid did not show their significant correlations with TAS. These results showed that the hypertensive elderly are prone to be obese and to have increased TAS. Due to unknown factors affecting TAS values, measurement of plasma TAS as a sole indicator of total antioxidant capacity is limited to fully understanding changes in the body's free radical trapping power. However, the results from the current study may suggest that hypertension and/or obesity might increase oxidative stress, followed by increased the body's total antioxidant defense system.

건강검진자 대상 고혈압 유무에 따른 피부전기활동성 비교 연구 (Comparison of Electrodermal Activity between Hypertensive and Non-hypertensive Subject in Health Screening Population)

  • 김영은;김철;예상준;양창섭;송미영
    • 동의생리병리학회지
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    • 제27권6호
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    • pp.847-852
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    • 2013
  • The aim of this study was to investigate the difference of electrodermal activity between the hypertensive and non-hypertensive subjects. A total 161 subjects who visited a hospital for health check ups from August 2011 through November 2011 and from September 2012 through November 2012 were included in this study. We divided the subjects into two groups by blood pressure, hypertension group(81 patients) and non-hypertension group(180 subject). Then we compared electrodermal activity between two groups by using the autonomic bioelectric response device model CP-6000A. The data was analyzed by independent t-test and logistic regression. In this study, there was a significant difference in electrodermal activity(the mean absolute value of positive, negative pulse conductivity) between hypertensive and normotensive group in t-test and electrodermal activity showed the significant influence on the prevalence risk of hypertension with age, body mass index and dyslipidema in binominal logistic regression. In conclusion, hypertensive patients had high level of electrodermal activity compared with normotensive subjects and this finding suggests that electrodermal activity which is explained excess tendency in Korean traditional medicine could be used for diagnosis in hypertension patients at Korean traditional medical clinic.