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Query: UMLS:C0028754 (obesity)
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An estimated 135 million people worldwide had diagnosed diabetes in 1995, and this number is expected to rise to at least 300 million by 2025. The number of people with diabetes will increase by 42% (from 51 to 72 million) in industrialized countries between 1995 and 2025 and by 170% (from 84 to 228 million) in industrializing countries. Several potentially modifiable risk factors are related to diabetes, including insulin resistance, obesity, physical inactivity and dietary factors. Diabetes may be preventable in high-risk groups, but results of ongoing clinical trials are pending. Several efficacious and economically acceptable treatment strategies are currently available (control of glycemia, blood pressure, lipids; early detection and treatment of retinopathy, nephropathy, foot-disease; use of aspirin and ACE inhibitors) to reduce the burden of diabetes complications. Diabetes is a major public health problem and is emerging as a pandemic. While prevention of diabetes may become possible in the future, there is considerable potential now to better utilize existing treatments to reduce diabetes complications. Many countries could benefit from research aimed at better understanding the reasons why existing treatments are under-used and how this can be changed.
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PMID:Diabetes--a common, growing, serious, costly, and potentially preventable public health problem. 1102 88

Erectile dysfunction is a frequent condition in cardiovascular patients. Since the arrival of oral erection-supporting medication, patients want to know how safe sexual activity is in cardiovascular disease in general and during use of erection-supporting medication in particular. Sexual intercourse with a steady partner causes no more cardiovascular risk than normal daily activities such as ironing, 2 kilometers of walking without climbing, paperhanging, playing golf or gardening. The relative risk of myocardial infarction during sexual activity is not significantly higher than for healthy persons. The incidence of cardiovascular morbidity and mortality is not higher among users of sildenafil. Sildenafil is contraindicated in patients using long-acting nitrates or who may need to use short-acting nitrates, because the combination may cause a sharp fall of the blood pressure. No interactions have been observed with beta-receptor blockers, calcium antagonists, thiazide and loop diuretics and ACE inhibitors. Before prescribing a symptomatic (pharmaceutical) treatment for patients with an erection disorder, attention should be given tot the sexological, psychological and medical backgrounds of the disorder. Secondary prevention of atherosclerotic risk factors is also important: regulation of blood pressure and blood sugar level, hyperlipidaemia and obesity, as well as a change of lifestyle (giving up smoking, adapting of diet and more physical exertion). Patients with a very low cardiac capacity should be advised to refrain from treatment of the erection disorder.
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PMID:[Drug treatment of erection disorders in patients with cardiovascular disease]. 1121 61

Obesity is often accompanied with hypertension and increases cardiovascular events. Japanese new guideline on identification of obesity includes a modified BMI categories and a method of detection of visceral fat obesity in Japanese. Hyper-insulinemia and leptin released from adipose tissue play an important role in the development of hypertension in obese patients. Insulin and leptin increase sympathetic tone which results in sodium retention and hyper-responsiveness of blood vessels. As leptin has also a direct vasodilative and diuretic action, its effect on blood pressure is bidirectional. Life style modification, especially diet and physical exercise are important to obtain the body weight loss and the improvement of insulin resistance. Dynamic exercise at the level of fifty percent of max VO2 for 30 to 60 minutes over three times a week should be recommended for hypertensive patients with obesity. ACE inhibitors improve the hypersympathetic tone and impaired insulin sensitivity in obese patients. Calcium antagonist is also useful for these patients.
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PMID:[Treatment of hypertension in the patients with obesity]. 1139 1

Type 2 diabetes mellitus is a prevalent disease in Westernised society, and more than 50% of individuals with diabetes mellitus die from cardiovascular causes. The underlying metabolic defect of type 2 diabetes mellitus is a combination of insulin resistance and decreased secretion of insulin by pancreatic beta-cells. Insulin resistance commonly precedes the onset of type 2 diabetes mellitus and is usually associated with a metabolic syndrome including hypertension, dyslipidaemia and obesity. Treatment of known cardiovascular risk factors, including hyperglycaemia, dyslipidaemia, hypertension and smoking, plays a key role in delaying the onset and progression of coronary heart disease (CHD) and other forms of atherosclerosis in patients with diabetes mellitus. Sulphonylureas should be used with caution in patients with CHD but aspirin (acetylsalicylic acid), beta-blockers and ACE inhibitors play an important role in the medical management of patients with established coronary artery disease and diabetes mellitus. Patients with diabetes mellitus represent a higher risk group of patients after both percutaneous and surgical coronary revascularisation and the decision regarding the choice of revascularisation procedure should take into account angiographic characteristics, clinical status and patient preference. Patients presenting with diabetes mellitus and acute myocardial infarction should be considered for reperfusion therapy with either urgent thrombolytic therapy or primary percutaneous coronary intervention.
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PMID:Optimisation of the management of patients with coronary heart disease and type 2 diabetes mellitus. 1139 41

The pathogenesis of hypertension in diabetes type 1 and type 2 is different. Diabetic nephropathy is regarded as the most essential factor contributing to the development of hypertension in patients with diabetes mellitus type 1. Obesity, insulin resistance and hyperinsulinaemia are responsible for hypertension in diabetes mellitus type 2. In both types of diabetes, hypertension is involved in fast progress of diabetic renal disease. Antihypertensive treatment in diabetic patients should include: non-pharmacological interventions, drug-therapy, regular blood pressure monitoring, educational efforts. ACE-inhibitors, calcium antagonists, diuretics, beta-blockers, angiotensin II receptor antagonists and alpha 1-blockers are used as antihypertensive agents in diabetic patients. Neutral endopeptidase inhibitors are the new, promising therapeutic option.
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PMID:[Hypertension in patients with diabetes mellitus--selected pathogenetic and therapeutic aspects]. 1147 57

Obesity has been shown to be an independent risk factor for coronary heart disease. The insulin resistance associated with obesity contributes to the development of other cardiovascular risk factors, including dyslipidemia, hypertension, and type 2 diabetes. The coexistence of hypertension and diabetes increases the risk for macrovascular and microvascular complications, thus predisposing patients to cardiac death, congestive heart failure, coronary heart disease, cerebral and peripheral vascular diseases, nephropathy, and retinopathy. Body weight reduction increases insulin sensitivity and improves both blood glucose and blood pressure control. Metformin therapy also improves insulin sensitivity and has been associated with decreases in cardiovascular events in obese diabetic patients. Antihypertensive treatment in diabetics decreases cardiovascular mortality and slows the decline in glomerular function. However, pharmacological treatment should take into account the effects of the antihypertensive agents on insulin sensitivity and lipid profile. Diuretics and beta-blockers are reported to reduce insulin sensitivity and increase triglyceride levels, whereas calcium channel blockers are metabolically neutral and ACE inhibitors increase insulin sensitivity. For the high-risk hypertensive diabetic patients, ACE inhibition has proven to confer additional renal and vascular protection. Because hypertension and glycemic control are very important determinants of cardiovascular outcome in obese diabetic hypertensive patients, weight reduction, physical exercise, and a combination of antihypertensive and insulin sensitizers agents are strongly recommended to achieve target blood pressure and glucose levels.
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PMID:Treatment of obesity hypertension and diabetes syndrome. 1156 61

Current guidelines in the treatment of arterial hypertension do not recommend differential treatment of obesity-associated hypertension. Since optimal blood pressure control in most obese hypertensives requires a combination of blood pressure-lowering substances, careful consideration of the choice of treatment is of particular importance. On the basis of their favorable metabolic properties, ACE inhibitors, angiotensin receptor blockers, calcium channel blockers, and low-dose diuretics, should be preferentially employed in the obese. Beta-blockers should not be given to young obese patients with uncomplicated hypertension. Before definitive pronouncements on what constitutes optimal treatment of obese patients can be made, the results of studies looking at hard end points must be available.
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PMID:[Lowering blood pressure in obese hypertensive patients. Which antihypertensive drugs are suitable]. 1177 Mar 73

Type II diabetes and hypertension are two pathologies which are frequently associated in adults, especially in developed countries. All the more so when patients are also obese: obesity is today, and will be in the next future, a true epidemic in these countries. These three pathologies imply a risk for cardiovascular complications much higher than that due to an isolated arterial hypertension. This increased risk is probably due to many factors: hyperglycemia, a dismetabolic syndrome (hyperlipemia, hyperuricemia, thrombophilia, altered Na(+)-H+ membrane exchanges = syndrome X) and hyperinsulinemia which favor atherosclerosis and clinical events. Consequently non-pharmacological and aggressive pharmacological therapy is necessary. Even if the trials done in the last years are questionable and not totally convincing, all researchers agree that lowering blood pressure to normality is the best way to improve prognosis of these patients. Usually for this purpose we need a therapy with more than one drug. Among the antihypertensive drugs, ACE-inhibitors (and perhaps also angiotensin receptor blockers) are preferred, especially in those hypertensives with diabetes who have also microalbuminuria or a frank proteinuria.
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PMID:[Diabetes and arterial hypertension]. 1177 8

Insulin resistance and hyperinsulinemia have been observed in over 70% of the nonobese, nondiabetic subjects with essential hypertension (HT). Alpha-1 blockers, ACE-antagonists, long-acting Ca blockers including nifedipine CR, some form of beta-blockers, tilisolor, which is reported to increase blood flow, improve insulin sensitivity when blood pressure is better controlled. Decrease of serum potassium during insulin sensitivity test and intraplatelet free Ca2+ concentration is positively and negatively correlated with insulin sensitivity, respectively. Blood pressure is correlated with insulin resistance, which is also observed in secondary HT. The resistance is correlated with salt sensitivity as well as impaired nocturnal fall of blood pressure. These suggest the possible association of insulin resistance with altered intracellular cation metabolism. Insulin resistance and associated hyperinsulinemia have been observed in effort as well as vasospastic angina pectoris (VSAP), atherothrombotic cerebral infarction, and in ASO without obesity, HT, or diabetes, suggesting the resistance resulting from endothelial dysfunction. Insulin resistance has been observed in heart failure and is correlated with angiotensin II. Resistance is also observed in hypertrophic cardiomyopathy and is partially correlated with TNF-alpha. These results indicate that insulin resistance seem to be multifactorial. An effort to normalize insulin sensitivity is crucial to eliminate multiple risk factors as well as to prevent the progression of atherosclerotic vascular lesions.
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PMID:Multifactorial insulin resistance and clinical impact in hypertension and cardiovascular diseases. 1187 61

In recent years several multicentric prospective studies have demonstrated the efficacy of some therapeutic measures to slow the progression of renal diseases. Inhibition of renin-angiotensin system (RAS) both by ACE inhibitors (ACEI) and angiotensin II receptor antagonists (ARA) is probably the strongest therapeutic alternative: The antiproteinuric effect of these drugs is an excellent surrogate marker and a predictor of the beneficial influences on the progression of renal failure. The type of renal disease, an inadequate control of blood pressure, and the presence of obesity may counteract the beneficial influences of RAS inhibition, whereas early treatment of all patients with significant proteinuria before the appearance of renal insufficiency and combined therapy with an ACEI and an ARA may augment it. Dietary protein restriction is a classic treatment of chronic renal insufficiency whose effectiveness has been validated by multicentric studies. However, a poor compliance of the patient and the risk of malnutrition with very strict protein restriction could limit the benefits of this treatment. Treatment of hyperlipidemia, prevention of obesity, avoidance of smoking, and regular physical exercise are interventions whose therapeutic potential is progressively recognized, particularly in type 2 diabetic nephropathy. Early correction of anemia may contribute to the slowing of renal disease progression. Although further studies are required, the accumulated evidence and the likelihood of additive beneficial effect of these therapeutic measures advise their combined implementation in patients with chronic renal diseases.
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PMID:Slowing the progression of renal failure. 1198 7


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