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Trandolapril/verapamil sustained release (SR) [Tarka] is an oral, fixed-dose combination of the ACE inhibitor trandolapril and the SR formulation of the phenylalkylamine calcium channel antagonist verapamil. It is indicated for the treatment of hypertension in patients who require more than one agent to achieve blood pressure (BP) targets. In the large, randomised, multicentre INVEST (INternational VErapamil SR/trandolapril STudy), a verapamil SR-based treatment strategy that included trandolapril in most patients was as effective as an atenolol-based treatment strategy in reducing the risk of the primary outcome (first occurrence of death [all-cause], nonfatal myocardial infarction [MI] or nonfatal stroke) in patients with hypertension and coronary artery disease (CAD) and was as well tolerated. Trandolapril/verapamil SR is generally more effective at controlling hypertension than either component as monotherapy, and is as effective as a number of other fixed-dose combination therapies. The combination is as well tolerated as trandolapril monotherapy and is at least as well tolerated as verapamil SR monotherapy. In hypertensive patients with type 2 diabetes mellitus in the BENEDICT (BErgamo NEphrologic DIabetes Complications Trial), trandolapril/verapamil SR prolonged the time to the onset of persistent microalbuminuria compared with placebo, as did trandolapril monotherapy. Thus, trandolapril/verapamil SR is an effective option for the treatment of essential hypertension in patients requiring more than one agent to achieve BP targets, including those with compelling indications, such as CAD or type 2 diabetes.
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PMID:Trandolapril/verapamil sustained release: a review of its use in the treatment of essential hypertension. 1611 84

The risk of cardiovascular disease (CVD) in patients with diabetes mellitus is increased more than 3-fold and is the major cause of mortality and morbidity in diabetic patients. Historically, diabetes has been considered an inadequate insulin response leading to elevated plasma glucose levels with morbidities attributable to hyperglycemia. However, diabetes represents a complex pathology that often includes hypertension, dyslipidemia, endothelial dysfunction, microalbuminuria, platelet disaggregation, abnormal fibrinolysis, and chronic inflammation. Furthermore, oxidative stress has been shown to contribute to the pathology of diabetic CVD, having implications in the development of hypertension, renal disease, and stroke. Hypertension is a common feature of diabetes and is the primary contributor to CVD, which highlights the importance of blood pressure control (<130/80 mm Hg). Recent investigations have also implicated the renin-angiotensin-aldosterone system in promoting oxidative stress-induced endothelial dysfunction, inflammation, and insulin resistance. These pathophysiologic considerations will be important in developing prevention strategies for CVD in diabetes. Further research is needed to identify antioxidant and insulin-sensitizing agents that will improve CVD outcomes in patients with diabetes.
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PMID:Oxidative stress in insulin-resistant conditions: cardiovascular implications. 1631

Diabetes (particularly type 2 diabetes) represents a global health problem of epidemic proportions. Individuals with diabetes are not only more likely to develop hypertension, dyslipidemia, and obesity, but are also at a significantly higher risk for coronary heart disease, peripheral vascular disease, and stroke. Angiotensin II plays a key pathophysiological role in the progression of diabetic renal disease, and blockade of the renin-angiotensin system with angiotensin-converting enzyme inhibitors (ACEi) or angiotensin II antagonists has therefore become an important therapeutic strategy to reduce renal and cardiovascular events in patients with diabetes. Several studies have demonstrated the effects of angiotensin II antagonists on the reduction of albuminuria and the progression of renal disease from microalbuminuria to macroalbuminuria. More importantly, several endpoint trials have shown that the antiproteinuric effects of losartan and irbesartan translate into cardiovascular and renoprotective benefits beyond blood pressure lowering, thereby delaying the need for dialysis or kidney transplantation by several years. These and other studies indicate that angiotensin II antagonists not only improve survival and quality of life of patients with diabetic nephropathy, but also have the potential to reduce the substantial healthcare burden associated with managing these patients. ACEi also appear to exert similar beneficial effects in diabetic patients, but whether clinically significant differences in renoprotection or mortality exist between angiotensin II antagonists and ACEi in patients with type 2 diabetes remains to be fully investigated in appropriate head-to-head studies.
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PMID:Blockade of the renin-angiotensin-aldosterone system: a key therapeutic strategy to reduce renal and cardiovascular events in patients with diabetes. 1633 Oct 93

The cardiometabolic syndrome (CMS) is associated with cardiovascular disease (CVD) and includes a constellation of risk factors such as central obesity, hypertension, insulin resistance, dyslipidemia, microalbuminuria, and hypercoagulability. Collectively, these risk factors increase CVD endpoints such as stroke, congestive heart failure, chronic kidney disease (CKD), and overall mortality. The CMS is associated with endothelial dysfunction, inflammation, abnormal thrombolysis, and increased oxidative stress that accentuate progression of CVD. We will review how the varying components of the CMS relate to an increased CVD and renal disease risk.
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PMID:The cardiometabolic syndrome as a cardiovascular risk factor. 1635 16

Hypertension is a major risk factor for stroke and coronary events in elderly people and clinical trials have shown that treatment of hypertension with various drugs can result in a substantial reduction in cerebrovascular and cardiovascular events. The angiotensin II type 1 (AT1) receptor antagonists are the newest class of antihypertensive agents to be used widely in clinical practice. AT1 receptor antagonists can generally be given once-daily. They are also extremely well tolerated with minimal first-dose hypotension and an incidence of adverse effects similar to that seen with placebo. Adverse event rates are significantly lower than with other classes of antihypertensive drugs including ACE inhibitors. These factors result in improved compliance and increased rates of continuance on therapy. AT1 receptor antagonists show similar efficacy in lowering blood pressure to other classes of antihypertensive agents and their antihypertensive effect is potentiated when they are given concomitantly with low-dose thiazide diuretics. AT1 receptor antagonists are eliminated predominantly by the hepatic route but most are not subject to extensive metabolism and interactions with other drugs are uncommon. This is an advantage in the elderly, who are often receiving multiple medications which increases the risk for adverse drug interactions. Dose adjustments are not usually required in the elderly unless there is plasma volume depletion. Although plasma AT1 receptor antagonist concentrations are generally higher in the elderly than in younger subjects, this pharmacokinetic difference may be balanced by decreased activation of the circulating renin-angiotensin-aldosterone system in the elderly. Recent clinical studies in high-risk hypertensive patients with left ventricular hypertrophy or in patients with diabetic nephropathy or heart failure have demonstrated that AT1 receptor antagonists can improve clinical outcomes to a similar or sometimes greater extent than other antihypertensive agents. Many of these studies have included large numbers of older patients and have confirmed the excellent tolerability profile of these drugs. Thus, AT1 receptor antagonists should be considered as a possible first-line treatment or as a component of combination therapy in patients with type 2 diabetes mellitus and microalbuminuria or nephropathy and as an alternative or additional treatment to ACE inhibitors in patients with heart failure or left ventricular dysfunction. AT1 receptor antagonists also appear to reduce the onset of new diabetes compared with some other antihypertensive drugs. The benefits in terms of organ protection have mainly been seen in studies using higher doses of particular AT1 receptor antagonists and it is not certain at present whether these results can be extrapolated to other members of the class. As the elderly are more likely to have developed organ damage related to hypertension or to have heart failure or diabetes as concomitant conditions, AT1 receptor antagonists represent an appropriate option for many elderly patients. The main disadvantage of these drugs is the cost of the medication but this may be offset by their improved tolerability with fewer adverse reactions and thus increased compliance, resulting in better blood pressure control and fewer clinical events. Overall, AT1 receptor antagonists are well tolerated and efficacious for blood pressure-lowering when given as a single daily dose in elderly patients and have many potential benefits in high-risk hypertensive subjects.
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PMID:The role of angiotensin II type 1 receptor antagonists in elderly patients with hypertension. 1653 36

Hypertension is a disease with a long latency. Those afflicted will, if untreated, die earlier than an age-matched cohort within the general population. In a first phase of intervention trials it was demonstrated that anti-hypertensive treatment, in comparison with placebo, results in a reduction of so-called hard end points (death, stroke, myocardial infarction). In a second phase of clinical trials, which is still continuing, active treatment strategies are being compared. The problem in this phase is that differences in these hard end points are smaller than in placebo-controlled trials. For this reason signs of organ damage that occur in the time between the diagnosis of high blood pressure and the occurrence of hard end points (e.g. left ventricular hypertrophy, microalbuminuria, intima/media thickness) are used as additional end points. According to epidemiological data, these intermediate or surrogate end points are more or less predictive of hard end points. Systematic inclusion of such surrogates in large trials has been tried for some years in an attempt to raise the predictive power of these parameters. Another patient-relevant endpoint of antihypertensive treatment is the new occurrence of diabetes mellitus.
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PMID:["Soft" and "hard" end points in the example of hypertension]. 1668 61

Cardiovascular diseases are the main cause of death among people with kidney diseases. The early stage of chronic kidney disease, with mild decrease of glomerular filtration rate (GFR) and small increase of creatinine concentration in serum and/or occurrence of microalbuminuria, is related to the increase of cardiovascular morbidity and mortality. Kidney insufficiency is also independently connected with the risk of stroke. Patients with early stage of kidney insufficiency should be qualified as those in a cardiovascular high risk group.
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PMID:[Influence of early stage of chronic renal disease on risk of cardiac diseases and stroke]. 1696 7

The aim of the article was to use prospectively collected data on people with type 1 diabetes to assess which routinely collected clinical measures predict the development of macrovascular disease in people with type 1 diabetes. Data have been collected in a structured format at an annual review since 1985. For this study, all people with type 1 diabetes in the database in both 1992 and 2001 were ascertained. Data were extracted for a diagnosis of coronary artery disease, stroke, and peripheral vascular disease (macrovascular complications). Presence of other microvascular complications was also ascertained. Forty-one of 404 (10.1%) people had macrovascular disease at the index visit in 1992 and 61 others developed macrovascular complications during follow-up. People who developed macrovascular complications were older (48 +/- 12 versus 36 +/- 11 [SD] years; P = 0.000), had longer duration of diabetes (28 +/- 12 versus 18 +/- 11 years; P = 0.000), higher BMI (26.7 +/- 4.6 versus 25.4 +/- 3.6 kg/m2; P = 0.041), higher base line serum cholesterol (5.9 +/- 1.7 versus 5.2 +/- 1.1 mmol/L, P = 0.007), higher median base line triglyceride levels (1.5 [IQ range 0.9-2.6] versus 1.1 [0.8-1.7] mmol/L; P = 0.002), higher systolic BP (145 +/- 21 versus 129 +/- 20 mmHg; P = 0.000), and higher serum creatinine (102 +/- 57 versus 86 +/- 17 micromol/L; P = 0.038) than those who did not. We found no significant difference in the base line glycated hemoglobin in the two groups. The multivariate model showed that age, duration of diabetes, systolic BP, and serum cholesterol and creatinine levels predicted the development of macrovascular complications, which were also associated with the later development of microalbuminuria. Macrovascular complications developed in 16.8% of people with type 1 diabetes over a 9-year follow-up, and were predicted by potentially modifiable factors including higher BP, BMI, and serum triglyceride and cholesterol levels.
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PMID:Predicting the development of macrovascular disease in people with type 1 diabetes: A 9-year follow-up study. 1715 2

Diabetics are subjects to a high cardiovascular risk. This concept is now accepted by all and has been demonstrated in clinical practice by the constantly increasing number of diabetic cardiac patients and cardiac diabetics. The many therapeutic trials carried out on the prevention of cardiovascular complications in diabetics have made it possible to define therapeutic goals. HbA1c must be less than 6.5%. Target blood pressure values are 130/80 mmHg or even 125/75 in the case of renal insufficiency. If conventional treatments have proven efficacy against stroke and coronary events, only molecules which modulate the renin-angiotensin-aldosterone system provide additional nephroprotection in diabetics. However, single-agent therapy is seldom sufficient to achieve glycaemic or blood pressure targets. Diabetic dyslipidemia also requires attentive management, usually by a statin, with a target LDL cholesterol < 1 g/l at the onset of microalbuminuria. All these measures should make it possible to obtain a significant reduction in the cardiovascular risk of diabetic patients.
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PMID:[Diabetes and heart]. 1737 35

In COPD, the systemic effects of the disease reflect the structural and/or biochemical alterations occurring in the structures or organs other than the lungs in relation to the characteristics of the primary disease. The disorders of endothelial structures due to COPD may lead vascular pathologies, such as ischemic heart disease, stroke, to occur more commonly in those with COPD. On consideration of the fact that the vascular endothelium is a major site in which the systemic effect of the inflammation occurs, should von Willebrand Factor, a clotting factor of endothelium origin, and the plasma level of fibrinogen vary with the severity of the disease in COPD, the variability of arterial blood gas values, and the stability or exacerbation of the disease? Considering the fact that microalbuminuria is an indirect manifestation of the renal endothelial permeability and/or renal perfusion; should there be an association between microalbuminuria and the severity of COPD? Therefore, in order to assess the effect of the systemic inflammation in COPD on the vascular endothelium, we compared the levels of the plasma vWF, fibrinogen, 24-h urine microalbuminuria of those with stable COPD (33 patients) and exacerbation of COPD (26 patients) with those of the controls (16 healthy subjects). The mean age was 63.42 -/+ 10.29, 68.00 -/+ 9.77 and 59.63 -/+ 14.10 years in SCOPD, COPDAE, and CG, respectively. The level of microalbuminuria was found to increase significantly in COPDAE group, compared to that of the controls (P = 0.004). When we investigated the relation between smoking burden and microalbuminuria, vWF, fibrinogen levels, the amount of consumption and positive relationship were found significant. (r = 0.336, P = 0.003 between smoking pack-years and vWF, r = 0.403, P = 0.001 between smoking pack-years and fibrinogen, and r = 0.262, P = 0.02 between smoking pack-years and microalbuminuria). The levels of vWF and fibrinogen are AECOPD > SCOPD > CG, with the highest being in AECOPD, and the difference among the groups was statistically significant. The relationship between the level of hypoxemia and microalbuminuria, fibrinogen and vWF was found to be significant (r = -0.360, P = 0.005 between oxygen saturation and microalbuminuria, r = -0.359, P = 0.005 between the level of PaO(2) and fibrinogen, and r = -0.336, P = 0.009 between PaO(2) and vWF). In conclusion, the levels of plasma vWF, fibrinogen, and microalbuminuria may be helpful in grading the severity of COPD exacerbation. The related increase in these markers may represent a possible pathophysiological mechanism behind the increased vascular morbidity of patients with COPD and detecting indirectly the endothelial dysfunction as a manifestation of systemic outcomes due to COPD and in detecting earlier the cases in which the risk for developing the associated complications are higher. We suggest that further studies are necessary to investigate the impact of antithrombotic treatment on microalbuminuria, plasma vWF and fibrinogen as markers of endothelial dysfunction coexisting COPD exacerbation.
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PMID:Microalbuminuria, von Willebrand factor and fibrinogen levels as markers of the severity in COPD exacerbation. 1762 88


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