Angiotensin-Converting Enzyme Gene Polymorphism and Erythropoietin Requirement

Objectives To study the effect of angiotensin-converting enzyme (ACE) polymorphisms II, ID, and DD on erythropoietin (EPO) requirement in patients on continuous ambulatory peritoneal dialysis (CAPD) therapy. Design Retrospective observational study. Setting CAPD Unit, Royal London/St. Bartholomews Hospital, London, UK. Patients 46 patients on the transplant waiting list (age 20 – 70 years), on CAPD therapy for an average of 28 months, seen consecutively over a period of 3 months in the outpatients department. Main Outcome Measures Primary end point: EPO dose requirement in different ACE genotypes. Secondary end points: C-reactive protein, ferritin, parathyroid hormone, Kt/V, duration of dialysis, folate, cause of renal failure, and whether or not patients were on ACE inhibitor therapy. Results There was a statistically significant difference ( p < 0.05) in EPO requirement in the II/ID group compared to the DD group. The mean ± standard error of EPO for the II/ID group was 144 ± 15 U/kg/week, and for the DD group, 87 ± 9 U/kg/ week. The difference in EPO requirement could not be explained by age, C-reactive protein, ferritin, parathyroid hormone, Kt/V, duration of dialysis, folate, cause of renal failure, or whether or not patients were on ACE inhibitor therapy. Conclusion In CAPD patients, ACE genotype has predictive value when determining the EPO dosage, as the II/ID genotype may be associated with a suboptimal response.

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YKL-40, Soluble IL-2 Receptor, Angiotensin Converting Enzyme and C-Reactive Protein: Comparison of Markers of Sarcoidosis Activity

Biomolecules ◽

10.3390/biom8030084 ◽

2018 ◽

Vol 8 (3) ◽

pp. 84 ◽

Cited By ~ 7

Author(s):

Pelin Uysal ◽

Sinem Durmus ◽

Volkan Sozer ◽

Remise Gelisgen ◽

Ekrem Seyhan ◽

...

Keyword(s):

Angiotensin Converting Enzyme ◽

Interleukin 2 ◽

Active Phase ◽

Inactive Disease ◽

Converting Enzyme ◽

C Reactive Protein ◽

Reactive Protein ◽

Significant Difference ◽

Inactive Phase ◽

Hs Crp

The aims of this study were to describe the clinical, radiological and immunological features of a population of sarcoidosis patients and to analyse chitinase-3-like protein 1 (YKL-40), soluble interleukin-2 receptor (sIL-2R), neopterin concentrations and adenosine deaminase (ADA) activity in serum of these patients in order to understand their potential as disease markers. Fifty-nine patients affected by chronic sarcoidosis, in active (20 patients) and inactive (39 patients) phase according to the clinical, radiological and laboratory criteria were studied. Serum YKL-40, sIL-2R, high-sensitive C-reactive protein (hs-CRP), neopterin levels and ADA activities were evaluated and compared with those of 25 healthy controls. Individuals with chronic sarcoidosis were significantly higher serum YKL-40, sIL-2R, neopterin, hs-CRP concentrations, angiotensin converting enzyme (ACE) and ADA activity than those of control subjects. Sarcoidosis patients in the active phase of the disease were significantly higher YKL-40, sIL-2R, hs-CRP levels and ACE activity than those in the inactive phase, while ADA activities and neopterin levels did not display any significant difference between the active and inactive disease groups. In comparison to the other parameters, as panel measurement of the serum YKL-40, sIL-2R, ACE and hs-CRP indicate a greater discrimination between active and inactive disease. The results indicate that serum YKL-40, sIL-2R, ACE and hs-CRP concentrations may be useful marker for monitoring sarcoidosis disease activity.

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Comparative Effects of Preoperative Angiotensin-converting Enzyme In-hibitor, Statin and Beta-blocker Treatment on Human Internal Mammary Artery Reactivity in Patients with Coronary Artery Disease: A Pilot Study

The Open Cardiovascular Medicine Journal ◽

10.2174/1874192401307010069 ◽

2013 ◽

Vol 7 (1) ◽

pp. 69-75 ◽

Cited By ~ 3

Author(s):

Selvinaz Dalaklioglu ◽

Ilhan Golbasi ◽

Caglar Ogutman

Keyword(s):

Angiotensin Converting Enzyme ◽

Beta Blocker ◽

Bypass Surgery ◽

Internal Mammary Artery ◽

Ace Inhibitor ◽

Control Group ◽

Maximal Effect ◽

Converting Enzyme ◽

Significant Difference ◽

Internal Mammary

Purpose: We investigated the effect of angiotensin-converting enzyme (ACE)- inhibitor, statin, and beta-blocker usage before coronary bypass surgery (CABG) on vascular reactivity of the internal mammary artery (IMA). Methods: Patients, who underwent elective CABG were evaluated. Samples of IMA obtained from 22 patients were divided into 4 groups in respect of drugs used by patients before bypass surgery (control group, ACE inhibitor + statin group, ACE inhibitor + statin + beta-blocker group, and ACE inhibitor + beta-blocker group). The discarded, distal end section of IMA was carefully removed, and the vasoreactivity of IMA rings was evaluated in vitro using an organ chamber. Smooth muscle contractile function was tested on artery segments exposed to 10-80 mM KCl and norepinephrine. The endothelial function of IMA rings was assessed with acetylcholine (ACh) and bradykinin, while endothelium-independent vasorelaxation was evaluated by sodium nitroprusside (SNP). Results: Both ACh and bradykinin caused concentration-dependent relaxation in endothelium-intact IMA rings. However, the maximal effect produced by endothelium-dependent agents in all treatment groups was more prominent when compared with the control group. There was no significant difference in the endothelium-dependent relaxation response of IMA between ACE inhibitor + statin, ACE inhibitor + beta-blocker and ACE inhibitor + statin + beta-blocker groups. The vasodilatory potency of SNP was similar in all groups. Similarly, contractile response to KCl or norepinephrine was not significantly different between groups. Conclusion: Use of ACE inhibitors and statins before bypass surgery may influence IMA vasoreactivity by improving endothelial control of vascular tone.

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Effects of combined statin and ACE inhibitor therapy on endothelial function and blood pressure in essential hypertension - a randomised double-blind, placebo controlled crossover study

Journal of the Renin-Angiotensin-Aldosterone System ◽

10.1177/1470320319868890 ◽

2019 ◽

Vol 20 (3) ◽

pp. 147032031986889 ◽

Cited By ~ 3

Author(s):

Piotr Ruszkowski ◽

Anna Masajtis-Zagajewska ◽

Michał Nowicki

Keyword(s):

Blood Pressure ◽

Essential Hypertension ◽

Angiotensin Converting Enzyme ◽

Endothelial Function ◽

Enzyme Inhibitor ◽

Converting Enzyme ◽

C Reactive Protein ◽

Double Blind ◽

Hypertensive Patients ◽

Reactive Protein

Background: The aim of this study was to compare the influence of 3-hydroxy-3-methylglutaryl-coenzyme A reductase inhibitors on endothelial function and blood pressure in patients with essential hypertension on long-term angiotensin-converting enzyme inhibitor therapy. Method: The study was designed as a prospective, double-blind, randomised, placebo controlled, crossover clinical trial. Twenty patients with essential hypertension were treated with an angiotensin-converting enzyme inhibitor; the control group included 10 healthy subjects. Hypertensive patients received in random order 80 mg of fluvastatin daily or placebo for 6 weeks. The following parameters were assessed at baseline and after each treatment period: serum lipids, flow-mediated vasodilation, activity of von Willebrand factor, concentration of vascular endothelial growth factor, C-reactive protein and 24-hour blood pressure profile. Results: Hypertensive patients did not differ from healthy subjects with respect to age, body mass and biochemical parameters, with the exception of C-reactive protein, which was higher in hypertensive patients ( P=0.02). After statin therapy, low-density lipoprotein cholesterol ( P<0.0001), C-reactive protein ( P=0.03), von Willebrand factor ( P=0.03) and vascular endothelial growth factor ( P<0.01) decreased and flow-mediated vasodilation improved ( P<0.001). Statins had no significant effect on blood pressure. Conclusions: Statins added to angiotensin-converting enzyme inhibitors may improve endothelial function and ameliorate inflammation independently of blood pressure.

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Angiotensin-Converting Enzyme Insertion/Deletion Polymorphism and Severe Hypoglycemia Complicating Type 2 Diabetes: The Fremantle Diabetes Study

Endocrinology ◽

10.1210/endo.152.3.zee1195a ◽

2011 ◽

Vol 152 (3) ◽

pp. 1195-1195

Author(s):

Wendy A. Davis ◽

Simon G. A. Brown ◽

Ian G. Jacobs ◽

Max Bulsara ◽

John Beilby ◽

...

Keyword(s):

Type 2 Diabetes ◽

Confidence Interval ◽

Angiotensin Converting Enzyme ◽

Ace Inhibitor ◽

Severe Hypoglycemia ◽

Community Dwelling ◽

Inhibitor Therapy ◽

First Episode ◽

Converting Enzyme

Abstract Aims/Hypotheses: The aims of this study were to determine whether the angiotensin-converting enzyme (ACE) gene I/D polymorphisms independently predict severe hypoglycemia in community-dwelling type 2 patients. Methods: Six hundred two patients who were ACE genotyped at baseline and assessed in 1998 were followed up to the end of June 2006. Severe hypoglycemia was defined as that requiring documented health service use as the primary diagnosis. Cox proportional hazards modeling was used to determine the predictors of first episode and zero-inflated negative binomial regression modeling identified predictors of frequency. Results: Forty-nine patients (8.1%) experienced 63 episodes of severe hypoglycemia. After adjusting for previously identified significant independent predictors of time to first episode, both ACE DD genotype and ACE inhibitor therapy, but not their interaction, added to the model [hazard ratio (95% confidence interval): 2.34 (1.29–4.26), P = 0.006, and 1.77 (0.99–3.13), P = 0.052, respectively]. Similarly, after adjusting for previously identified risk factors for multiple episodes of severe hypoglycemia, ACE DD genotype was independently associated with increased risk [incidence relative risk (95% confidence interval): 1.80 (1.00–3.24), P = 0.050]. Conclusions/Interpretation: ACE DD genotype is associated with an increased the risk of the first episode of severe hypoglycemia and its subsequent frequency approximately 2-fold in well-characterized patients with type 2 diabetes. Consistent with previous case-control studies, ACE inhibitor therapy was a weak predictor of severe hypoglycemia. ACE I/D genotyping might provide useful adjunctive prognostic information when intensive glycemic control measures are contemplated.

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