Differences in the effects of angiotensin converting enzyme inhibitors with or without a thiol group in chronic renal failure in rats

1989 ◽  
Vol 76 (4) ◽  
pp. 353-356 ◽  
Author(s):  
Akira Ohishi ◽  
Hiromichi Suzuki ◽  
Hidetomo Nakamoto ◽  
Hiroshige Katsumata ◽  
Hiroshi Sakaguchi ◽  
...  
Keyword(s):  
Renal Failure ◽  
Chronic Renal Failure ◽  
Angiotensin Converting Enzyme ◽  
Enzyme Inhibitors ◽  
Enzyme Inhibitor ◽  
Thiol Group ◽  
Angiotensin Converting Enzyme Inhibitors ◽  
Control Group ◽  
Converting Enzyme ◽  
Converting Enzyme Inhibitors

1. We have investigated the effects of the non-renin-mediated actions of angiotensin converting enzyme inhibitors on the progression of chronic renal failure accelerated by hypertension. For this purpose, we studied the effects of captopril (a thiol-containing angiotensin converting enzyme inhibitor), enalapril (an angiotensin converting enzyme inhibitor without a thiol group) and cysteine (a thiol-containing amino acid which has no angiotensin converting enzyme-inhibitory action) in adriamycin-treated rats with deoxycorticosterone acetate-salt hypertension, in which the renin-angiotensin system was suppressed. 2. There were no significant differences in blood pressure between these groups and the control group [adriamycin-treated group with deoxycorticosterone acetate-salt loading, 206 ± 7 mmHg (27.4 ± 0.9 kPa) at week 10]. 3. Massive proteinuria occurred in all groups. At the end of the experiment (at week 10), urinary protein excretion was significantly reduced in the captopril and cysteine groups compared with the control group. No manifest improvements appeared in the enalapril group. 4. Levels of serum creatinine and blood urea nitrogen increased progressively. At week 10, the increases in the serum levels of creatinine were less in the captopril (87 ± 16 mmol/l) and cysteine (80 ± 19 mmol/l) groups than in the control group (124 ± 27 mmol/l) (P < 0.01). No marked differences were found between the control and enalapril groups. 5. Captopril and cysteine caused more than a threefold reduction in the focal glomerulosclerosis score when compared with that in the control group, but enalapril did not decrease the score. The extent of tubulo-interstitial change was parallel with the focal glomerulosclerosis score. 6. We conclude that the thiol group is possibly involved in the mechanism of the beneficial effects of some angiotensin converting enzyme inhibitors on the progression of chronic renal failure exacerbated by hypertension.

Dangers of Captopril Therapy in Newborns

PEDIATRICS ◽  
1989 ◽  
Vol 83 (6) ◽  
pp. 1076-1076
Author(s):  
VIVIAN REZNIK ◽  
WILLIAM GRISWOLD ◽  
STANLEY MENDOZA
Keyword(s):  
Blood Pressure ◽  
Renal Failure ◽  
Angiotensin Converting Enzyme ◽  
Premature Infant ◽  
Enzyme Inhibitors ◽  
Angiotensin Converting Enzyme Inhibitors ◽  
Converting Enzyme ◽  
Converting Enzyme Inhibitors ◽  
Treatment Of Hypertension

Angiotensin-converting enzyme inhibitors are effective at lowering blood pressure in the neonate and the child. However, these drugs, when used for the treatment of hypertension in the premature infant, must be used with caution to avoid the complications that are well documented in the literature. All of the infants described in the article by Perlman and Volpe had extreme hypotension and oligunia. A group of nine infants with renal failure complicating captopril therapy were recently reported from the same institution.

Domestic practice of antihypertensive treatment of diabetic hypertensive patients

2014 ◽  
Vol 155 (43) ◽  
pp. 1695-1700
Author(s):  
Veronika Szentes ◽  
Gabriella Kovács ◽  
Csaba András Dézsi
Keyword(s):  
Blood Pressure ◽  
Angiotensin Converting Enzyme ◽  
Enzyme Inhibitors ◽  
Enzyme Inhibitor ◽  
Beta Blockers ◽  
Angiotensin Converting Enzyme Inhibitors ◽  
Converting Enzyme ◽  
Angiotensin Receptor ◽  
Converting Enzyme Inhibitors ◽  
Patients With Diabetes

Diabetes mellitus as comorbidity is present in 20–25% of patients suffering from high blood pressure. Because simultaneous presence of these two diseases results in a significant increase of cardiovascular risk, various guidelines focus greatly on the anti-hyperintensive treatment of patients with diabetes. Combined drug therapy is usually required to achieve the blood pressure target value of <140/85 mmHg defined for patients with diabetes, which must be based on angiotensin converting enzyme-inhibitors or angiotensin receptor blockers. These can be/must be combined with low dose, primarily thiazid-like diuretics, calcium channel blockers with neutral metabolic effect, and further options include the addition of beta blockers, imidazolin-l-receptor antagonists, or alpha-1-adrenoreceptor blockers. Evidence-based guidelines are obviously present in local practice. Although most of the patients receive angiotensin converting enzyme-inhibitor+indapamid or angiotensin converting enzyme-inhibitor+calcium channel blocker combined therapy with favorable metabolic effects, yet the use of angiotensin converting enzyme-inhibitors containing hidrochlorotiazide having diabetogenic potencial, and angiotensin receptor blocker fixed combinations is still widespread. Similarly, interesting therapeutic practice can be observed with the use of less differentiated beta blockers, where the 3rd generation carvediolol and nebivolol are still in minority. Orv. Hetil., 2014, 155(43), 1695–1700.

Angioedema induced by angiotensin-converting enzyme inhibitors: an analysis of hospitalizations during the COVID-19 pandemic

2021 ◽  
Author(s):  
Tatsiana М. Sabalenka ◽  
Volha V. Zakharava ◽  
Natallia R. Prakoshyna
Keyword(s):  
Angiotensin Converting Enzyme ◽  
Enzyme Inhibitors ◽  
Enzyme Inhibitor ◽  
Angiotensin Receptor Blockers ◽  
Angiotensin Converting Enzyme Inhibitors ◽  
Converting Enzyme ◽  
Angiotensin Receptor ◽  
Converting Enzyme Inhibitors ◽  
Converting Enzyme Inhibitor ◽  
Receptor Blockers

Backgraund: The pathogenesis of angioedema induced by angiotensin-converting enzyme inhibitors is based on the accumulation of bradykinin as a result of angiotensin-converting enzyme blockade. The SARS-CoV-2 virus by binding to the angiotensin-converting enzyme 2 receptor, may inhibit its production, which in turn leads to an increase in bradykinin levels. Thus, infection with SARS-CoV-2 may be a likely trigger for the development of angioedema. Aims: to analyze the cases of hospitalizations of patients with angioedema associated with the use of angiotensin-converting enzyme inhibitors and angiotensin receptor blockers during the COVID-19 pandemic. Materials and methods: a retrospective analysis of the medical records of inpatient patients admitted to the Vitebsk Regional Clinical Hospital in May-December 2020 with isolated (without urticaria) angioedema while receiving angiotensin-converting enzyme inhibitors or angiotensin receptor blockers was performed. All patients received smears from the naso- and oropharynx for COVID-19 by polymerase chain reaction. Results: there were admitted 15 patients (9 men and 6 women) aged 44-72 years for emergency indications, which was 53.6% among all patients with isolated angioedema. In two cases, a concomitant diagnosis of mild COVID-19 infection was established with the predominance symptoms of angioedema in the clinical picture with localization in the face, tongue, sublingual area, soft palate. All patients had a favorable outcome of the disease. Conclusions: patients with аngiotensin-converting enzyme inhibitor-induced angioedema may need to be hospitalized to monitor upper respiratory tract patency. There were cases of a combination of аngiotensin-converting enzyme inhibitor-induced angioedema and mild COVID-19 infection. Issues requiring additional research: the effect of SARS-CoV-2 infection on the levels of bradykinin and its metabolites; the trigger role of COVID-19 infection in the development of angioedema in patients receiving angiotensin-converting enzyme inhibitors/angiotensin receptor blockers; recommendations for the management of patients with аngiotensin-converting enzyme inhibitor-induced angioedema and a positive result for COVID-19.

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