scholarly journals Interaction of ACE inhibitors and AT1-receptor blockers on maximum blood pressure response in spontaneous hypertensive rats

2002 ◽  
Vol 3 (1) ◽  
pp. 16-18 ◽  
Author(s):  
Trefor Morgan ◽  
Cory Griffiths ◽  
Lea Delbridge
Keyword(s):  
Blood Pressure ◽  
Ace Inhibitors ◽  
Blood Pressure Response ◽  
At1 Receptor ◽  
Pressure Response ◽  
Hypertensive Rats ◽  
Receptor Blockers ◽  
At1 Receptor Blockers

Quantitative assay and disappearance rate of circulating renin

1964 ◽  
Vol 206 (6) ◽  
pp. 1361-1364 ◽  
Author(s):  
G. Schaechtelin ◽  
D. Regoli ◽  
F. Gross
Keyword(s):  
Blood Pressure ◽  
Blood Pressure Response ◽  
Pressure Response ◽  
Pressure Increase ◽  
Disappearance Rate ◽  
Hypertensive Rats ◽  
Contralateral Kidney ◽  
Blood Pressure Increase ◽  
Hypertensive Animal ◽  
Renal Hypertensive Rats

In isovolemic cross-circulation experiments, a nephrectomized donor rat, into which various doses of hog renin were injected, was connected to a nephrectomized indicator rat. The blood pressure increase thus produced in the indicator rat was compared with the blood pressure response obtained during cross circulation using either intact normotensive or renal hypertensive rats as donor animals. An exponential dose-response relationship was found between hog renin injected into a nephrectomized donor and the blood pressure increase of the indicator rat. Using the cross-circulation technique, the disappearance rate of endogenous reninlike material in the blood of donor animals and of exogenous renin injected into nephrectomized donor animals was examined. If an intact normotensive animal or a unilaterally nephrectomized hypertensive animal is totally nephrectomized, reninlike material disappears from the blood within 1 hr. In renal hypertensive rats with an untouched contralateral kidney which have a higher concentration of reninlike material in the blood, it takes about twice the normal time until reninlike material disappears from the blood after nephrectomy. The increased and prolonged blood pressure response of the nephrectomized animal to renin is not connected with a prolonged persistence of renin in the blood.

scholarly journals Genetic Variants of C-5312TRENIncreased Renin Levels and Diastolic Blood Pressure Response to Angiotensin Receptor Blockers

2015 ◽  
Vol 2015 ◽  
pp. 1-5 ◽  
Author(s):  
Mohammad Saifur Rohman ◽  
Ika Arum Dewi Satiti ◽  
Nashi Widodo ◽  
Mifetika Lukitasari ◽  
Hidayat Sujuti
Keyword(s):  
Blood Pressure ◽  
Diastolic Blood Pressure ◽  
Diastolic Pressure ◽  
Blood Pressure Response ◽  
Angiotensin Receptor Blockers ◽  
Pressure Response ◽  
Angiotensin Receptor ◽  
Hypertensive Patients ◽  
Renin Level ◽  
Receptor Blockers

Renin catalyzes the cleavage of angiotensinogen into angiotensin I. Genetic variant C-5312T of renin enhancer has been reported to increase in vitro renin gene transcription. However, no obvious in vivo study was performed to see the renin level in C-5312T when treated with angiotensin receptor blockers (ARB). Therefore, this study aimed to investigate the serum renin level and blood pressure response in ARB treated hypertensive patients. Single nucleotide polymorphism (SNP) of C-5312T was identified in 55 hypertensive patients by using multiplex PCR and renin serum level was assayed by ELISA. The data showed that the increase of serum renin levels after 5 months of ARB treatment was significantly higher in patients with CT/TT genotype (10 pg/mL) than those with CC genotype (4.08 pg/mL) (P= 0.025). Hypertensive patients with CT/TT genotypes also showed less diastolic pressure reduction than CC genotypes in hypertensive patients with valsartan treatment (P= 0.04) or telmisartan treatment (P= 0.03). Finally, these findings suggested that SNP of C-5312TRENenhancer might contribute to higher increased renin serum levels and less diastolic blood pressure response to ARB treatment.

scholarly journals Blood pressure response during bypass surgery in patients taking ACE inhibitors

1996 ◽  
Vol 27 (2) ◽  
pp. 92
Author(s):  
Carolyn M. Beale ◽  
Richard Underwood ◽  
J. Graeme Bennett ◽  
John Pepper ◽  
Christopher Lincoln ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Ace Inhibitors ◽  
Bypass Surgery ◽  
Blood Pressure Response ◽  
Pressure Response

Antidiuretic and pressor actions of vasopressin in age-dependent DOCA-salt hypertension

1989 ◽  
Vol 256 (1) ◽  
pp. R138-R145 ◽  
Author(s):  
J. Zicha ◽  
J. Kunes ◽  
M. Lebl ◽  
I. Pohlova ◽  
J. Slaninova ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Blood Pressure Response ◽  
Body Fluids ◽  
Pressure Response ◽  
Fluid Volume ◽  
Brattleboro Rats ◽  
Hypertensive Rats ◽  
Salt Treatment ◽  
Age Dependent ◽  
Salt Hypertension

The role of antidiuretic and pressor effects of vasopressin (VP) in deoxycorticosterone acetate (DOCA)-salt hypertension was studied in young and adult Brattleboro rats. The antidiuretic VP action was a necessary prerequisite for the development of severe DOCA-salt hypertension. The insufficient expansion of extracellular fluid volume in DOCA-salt-treated VP-deficient (DI) rats was associated with the attenuation of their hypertensive response, although they had highly increased blood volume and extracellular sodium. Chronic [deamino]-D-arginine vasopressin supplementation that restored volume and distribution of body fluids in DI rats permitted the full development of DOCA-salt hypertension. Blood pressure response to DOCA-salt treatment was always greater in young than in adult Brattleboro rats (even in animals lacking pressor or both VP effects). In animals in which antidiuretic VP effects were present, the pattern of body fluid response to DOCA-salt treatment was also age dependent. There was a tendency to intravascular expansion in young hypertensive rats, whereas an increase of interstitial fluid volume was found in adult animals. The elimination of VP pressor action lowered systemic resistance much more in adult than in young hypertensive rats. We conclude that 1) in adult but not in young rats antidiuretic VP effects are essential for the occurrence of blood pressure response to DOCA-salt treatment, 2) the restoration of body fluids due to antidiuretic VP action enables the development of hypertension in both age groups of DI rats, and 3) pressor VP effects contribute to the maintenance of hypertension, especially in adult animals.

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