Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts: Gene/Protein Disease Symptom Drug Enzyme Compound   Target Concepts: Gene/Protein Disease Symptom Drug Enzyme Compound

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Query: EC:3.4.15.1 (ACE)
18,300 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Diabetic nephropathy is the single most common cause of end-stage renal disease in the United States. Recently, several major therapeutic interventions have been developed and demonstrated to slow or halt the progression of renal failure in patients with diabetes and diabetic kidney disease. The Diabetes Control and Complications Trial demonstrated that microalbuminuria developed in fewer patients in the intensive blood sugar control group than in the conventional therapy group. Similarly, the risk of developing proteinuria was reduced by intensive blood sugar control. Multiple studies have demonstrated that in patients with insulin-dependent diabetes and proteinuria, lowering the systemic blood pressure slows the rate of decline in renal function and improves patients' survival. In the recently completed trial of ACE inhibition in diabetic nephropathy, ACE inhibitors were specifically shown to decrease dramatically the risk of doubling of serum creatinine or reaching a combined outcome of end-stage renal disease or death. In studies in small numbers of patients with insulin-dependent diabetes and established diabetic nephropathy, dietary protein restriction has also been demonstrated to slow the rate of decline of renal function. New potential interventions currently undergoing study include the use of aldose reductase inhibitors, the use of drugs that prevent the formation of advanced glycosylation end-products, and the use of angiotensin II receptor antagonists. Thus, several established benefits have recently been demonstrated to help prevent the development of or slow the progression of diabetic nephropathy, including blood pressure control, blood sugar control, and treatment with ACE inhibitors. Dietary protein restriction may also be of benefit. Multiple new interventions are undergoing clinical trials currently.
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PMID:Medical management of nephropathy in type I diabetes mellitus: current recommendations. 874 76

Diabetes mellitus comprises a heterogeneous group of diseases which have chronic hyperglycaemia in common as well as the resulting microvascular, macrovascular and neurological complications of this condition. Familial studies have provided strong evidence for the existence of genetic determinants in the different types of diabetes. In particular, monozygotic twin studies have indicated a higher rate of concordance in non-insulin-dependent (NIDDM) than in insulin-dependent diabetes mellitus (IDDM). In IDDM, 8 susceptibility loci have been identified, notably the HLA complex and insulin promotor gene. Rigorous family studies have identified monogenic subtypes representing 10-15% of all NIDDM: MODY2 related to glucokinase gene mutations, MODY1 and MODY3 secondary to mutation of hepatic nuclear factors, and diabetes resulting from deletion or mutation of mitochondrial DNA. Most NIDDM result from polygenic heredity, and susceptibility genes conducive to increased receptivity to deleterious environmental influences are now under investigation, such as beta 3 adrenergic receptor, FABP2 and OB. Precise analysis of phenotypes in the remaining families or systematic screening of the genome could allow the genes of each subtype to be identified. Finally, susceptibility genes for the increased severity and frequency of vascular complications have been identified, such as angiotensin converting enzyme, aldose reductase and aldehyde dehydrogenase genes. This progress has been facilitated by developments in molecular biology.
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PMID:Diabetes: from phenotypes to genotypes. 910 79

Diabetic nephropathy is the single most common cause of end-stage renal disease in the United States. Recently, several major therapeutic interventions have been developed and shown to slow or halt the progression of renal failure in patients with diabetes and diabetic kidney disease. Studies have shown that in patients with insulin-dependent diabetes and proteinuria, lowering systemic blood pressure slows the rate of decline in renal function and improves patients' survival. In the recently completed trial of angiotensin converting enzyme (ACE) inhibition in diabetic nephropathy, ACE inhibitors were specifically shown to decrease dramatically the risk of doubling of serum creatinine or reaching a combined outcome of end-stage renal disease or death independent of their effect on systemic blood pressure. In studies with small numbers of patients, dietary protein restriction has also been shown to slow the rate of decline of renal function. New potential interventions currently undergoing study include treatment with aldose reductase inhibitors, treatment with inhibitors of the formation of advanced glycosylation end-products, treatment of dyslipidemia, and a variety of other less well-studied interventions.
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PMID:Therapeutic interventions for nephropathy in type I diabetes mellitus. 914 77

The effect of exposure to diabetes on the kidney appears to be modulated by genetic factors determining a variable degree of susceptibility to diabetic nephropathy. Multiple loci are probably involved. Some of them might be found among the genes coding for components of the renin angiotensin system (renin, angiotensinogen, angiotensin I-converting enzyme, angiotensin receptors), some may regulate the way in which cells manage hyperglycemia (e.g. aldose reductase). Various genes have been examined to date, mainly by means of association studies. Positive results have been found for some of them (e.g. ACE, AGTR1, aldose reductase), but have not been confirmed in other populations. Thus, no genetic marker of increased susceptibility to diabetic nephropathy having clinical utility is currently available. New insights are expected from the systematic scanning of the genome for linkage with diabetic nephropathy.
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PMID:Genetic markers of increased susceptibility to diabetic nephropathy. 967 90

Impaired microcirculatory perfusion appears to be crucial to the pathogenesis of both neuropathy and retinopathy in diabetics. This in turn reflects a hyperglycemically mediated perturbation of vascular endothelial function that entails overactivation of protein kinase C, reduced availability of nitric oxide, increased production of superoxide and endothelin, impaired insulin function, diminished synthesis of prostacyclin/PGE1, and increased activation and endothelial adherence of leukocytes. These dysfunctions may be addressed with a supplementation program that includes high-dose antioxidants, fish oil, gamma-linolenic acid, chromium, arginine, carnitine, and ginkgolides. Pharmaceuticals likely to be of benefit in this regard include pentoxifylline, probucol, replacement estrogens, and inhibitors of angiotensin converting enzyme and aldose reductase.
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PMID:Nitric oxide deficiency, leukocyte activation, and resultant ischemia are crucial to the pathogenesis of diabetic retinopathy/neuropathy--preventive potential of antioxidants, essential fatty acids, chromium, ginkgolides, and pentoxifylline. 968 24

Diabetes mellitus causes profound alterations in many body tissues. Microvascular diabetic complications include diabetic neuropathy, nephropathy and retinopathy. Nephropathy first becomes manifest with hyperfiltration and microalbuminuria. These functional changes evolve over several years to a stage of marked deterioration of renal function. The possible preventive measures are metabolic control, reduction of dietary protein intake and use of ACE-inhibitors. Metabolic control is also important for the prevention of diabetic retinopathy. In fact, patients with HbA1c higher than 10% have an increased risk of progression of retinopathy. Moreover, an accelerated progression of retinopathy has been observed in patients with systemic hypertension following the onset of microalbuminuria. It has been demonstrated that diabetic neuropathy can also be present during childhood; therefore, it is possible to detect electrophysiological abnormalities in children and adolescents with IDDM. Glycaemic and blood pressure control are, so far, the main means for possible prevention or modification of the natural history of diabetic microvascular complications. Tight glycaemic control may have beneficial effects for diabetic neuropathy. In addition, other preventive measures, such as aldose reductase inhibitors, gangliosides, neurotrophic vitamins, etc., have been studied in the last years. However, no conclusive results have been obtained so far.
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PMID:Prevention of microvascular complications in diabetic children and adolescents. 1019 52

Diabetic nephropathy is a major cause of end stage renal failure. Non-insulin dependent diabetes mellitus (NIDDM) is more prevalent in our country than insulin dependent diabetes mellitus (IDDM). Nephropathy can be classified in IDDM patients in 5 stages which have been elaborated here. The major intervention to prevent or reduce the rate of progress in diabetic nephropathy is control of blood sugar, control of blood pressure, use of angiotensin converting enzyme inhibitors, restricting dietary protein intake, treatment with inhibitors of the formation of advanced glycosylation end products, treatment with aldose reductase inhibitors and treatment of dyslipidaemia. Once the patient of diabetic nephropathy reaches the end stage renal disease, renal replacement therapy is needed. The different modalities of renal replacement therapy are: Haemodialysis, continuous ambulatory peritoneal dialysis, kidney transplantation and kidney and pancreas transplantation. Renal replacement therapy in diabetics has to be individualised from patient to patient. Kidney transplantation is at present the option of choice.
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PMID:Diabetic nephropathy--prevention and treatment. 1240 75

Diabetic neuropathy is common, related to increased morbidity and mortality, and has no effective treatment at present. Interventions based on putative pathways thought to contribute to damage and repair of nerve fibres have yielded little success to date. Pain is a potentially debilitating manifestation of diabetic neuropathy and has many potential sites of origin and, hence, modulation. Its cause is unclear and it does not respond well to traditional pain therapies, proposed to mediate their benefits via multiple peripheral and central mechanisms. A better understanding of the mechanisms leading to nerve fibre degeneration and regeneration as well as pain has recently resulted in the development of a more targeted approach to the treatment of diabetic neuropathy. Thus, specific NMDA receptor antagonists and more specific neuronal serotonin and norepinephrine (noradrenaline) uptake inhibitors offer promise in the treatment of painful diabetic neuropathy. A number of treatments which include the aldose reductase inhibitors and neurotrophins have failed to reach the clinical arena. However, the antioxidant alpha-lipoic acid, as well as compounds which correct vascular dysfunction and hence neuropathy, such as ACE inhibitors and protein kinase C-beta inhibitors, have demonstrated more success.
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PMID:Current and future strategies for the management of diabetic neuropathy. 1598 43

Diabetic painful neuropathy (DPN) is one of the most common causes of neuropathic pain. The management of DPN consists of excluding other causes of painful peripheral neuropathy, maximising diabetic control and using medications to alleviate pain. The precise relationship between glycaemic control and the development and severity of DPN remains controversial. In this context, drugs such as aldose reductase inhibitors, ACE inhibitors, lipid-lowering agents and alpha-lipoic acid (thioctic acid) may have a useful role to play. There is also evidence that a successful pancreatic transplant may improve symptoms over time, but the mainstay of management continues to be symptomatic control of pain with drugs. Evidence from placebo-controlled studies has shown that opioids, antiepileptic and antidepressant drugs together with capsaicin are effective for alleviating DPN. Tramadol and oxycodone have been shown to be effective in studies of limited duration but their adverse effects, such as constipation and physical dependency, may limit their usefulness as a first-line treatment for DPN. Of the antidepressant drugs, the tricyclic antidepressants have been shown to be effective for alleviating DPN. These medications are widely used but their anticholinergic and sedative properties may not be well tolerated by patients. There is also good evidence that the serotonin-noradrenaline reuptake inhibitor antidepressant drugs venlafaxine and duloxetine are effective for treating DPN. However, venlafaxine may cause cardiac dysrhythmias, and patients using this medication require careful cardiac monitoring. Duloxetine appears to be less cardiotoxic and is licensed in the US and EU for alleviating DPN. The gabapentinoid group of drugs, gabapentin and pregabalin, appear to be the most evidence-based of the antiepileptic drugs for treating DPN. Large placebo-controlled studies have been performed with both of these agents. For many patients, it is still unclear what advantages pregabalin has over gabapentin for DPN. Until better evidence emerges, the potential availability of less expensive generic formulations of gabapentin, together with greater experience with its use, favour gabapentin as the main antiepileptic drug for alleviating DPN. Topiramate, lamotrigine, sodium valproate and oxcarbazepine have been shown to be effective in smaller studies but do not have the same evidence base as the gabapentinoid group of drugs. Of the newer antiepileptic drugs, lacosamide appears to be the most promising for alleviating DPN. Capsaicin has the best evidence base of all the topical agents, but local anaesthetic patches may also have a useful therapeutic role. It is not possible to nominate a single drug as the first-line treatment for DPN and there is evidence that a low-dose combination of two or more drugs rather than a single agent may provide better symptomatic relief with fewer adverse effects. Further studies are necessary to clarify the best combination(s) of treatment for DPN.
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PMID:Diabetic painful neuropathy: current and future treatment options. 1735 15

This article outlines evidence that advanced glycation end product (AGE) inhibitors and breakers act primarily as chelators, inhibiting metal-catalyzed oxidation reactions that catalyze AGE formation. We then present evidence that chelation is the most likely mechanism by which ACE inhibitors, angiotensin receptor blockers, and aldose reductase inhibitors inhibit AGE formation in diabetes. Finally, we note several recent studies demonstrating therapeutic benefits of chelators for diabetic cardiovascular and renal disease. We conclude that chronic, low-dose chelation therapy deserves serious consideration as a clinical tool for prevention and treatment of diabetes complications.
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PMID:Chelation: a fundamental mechanism of action of AGE inhibitors, AGE breakers, and other inhibitors of diabetes complications. 2235 28


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