Gene/Protein Disease Symptom Drug Enzyme Compound
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Query: UMLS:C0730345 (microalbuminuria)
 4,018 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Type 2 diabetes is characterised by insulin resistance in association with clustering of atherothrombotic risk factors (dysglycaemia, hyperinsulinaemia, hypertension, raised triglyceride, low HDL cholesterol and increased levels of plasminogen activator inhibitor-1 (PAI-1) and clotting factor VII). There is a 3-5 fold increase in risk of myocardial infarction rising to 10-20 fold in the presence of microalbuminuria and overall around 70-75% of subjects with type 2 diabetes die of cardiovascular disease. However, classical risk factors which associate with insulin resistance do not account for all the increased burden of vascular disease in diabetic subjects. Metformin is a biguanide compound which is antihyperglycaemic, reduces insulin resistance and has cardioprotective effects on lipids, thrombosis and blood flow. Metformin has a weight neutral/weight lowering effect and reduces hypertriglyceridaemia, elevated levels of PAI-1, factor VII and C-reactive protein. In addition recent studies indicate that metformin has direct effects on fibrin structure/function and stabilises platelets, two important components of arterial thrombus. The United Kingdom Prospective Diabetes Study (UKPDS) reported that metformin was associated with a 32% reduction in any diabetes related endpoint (p<0.002), a 39% reduction in myocardial infarction (p<0.01) and a non-significant 29% fall in microvascular complications. The figures for macrovascular complications compare favourably for those described for other cardioprotective agents such as ACE inhibitors and statins. These findings confirm metformin as first line therapy in the management of obese insulin resistant type 2 diabetes and in the prevention of the vascular complications of this common condition.
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PMID:Beneficial effects of metformin on haemostasis and vascular function in man. 1450

Plasma homocysteine is an established risk factor for vascular disease and precursor of the anti-oxidant glutathione. This study was designed to investigate the relationship of changes in homocysteine (Hcy) induced by oral folate to glutathione and measures of glycaemia and lipid metabolism in Type 2 diabetes (T2DM). Twenty-seven patients (26 male, 1 female, aged 48-68 years) with T2DM and microalbuminuria were treated with folic acid 10 mg daily for 3 months. During the study, diastolic blood pressure (p=0.04), HbA1c (p=0.04), serum triglycerides (p=0.04) and serum total/HDL-cholesterol ratio (p=0.004) all increased and serum HDL-cholesterol fell (p=0.006). The increased red cell folate correlated with a reduction in microalbuminuria (p=0.001). Overall, plasma glutathione increased (p=0.016) despite reduction in its precursor Hcy (p<0.001). Change in glutathione correlated inversely with change in HbA1c (p<0.02), total cholesterol (p=0.003) and triglycerides (p<0.02) and positively with HDL-cholesterol (p=0.033). Increase in glutathione correlated with levels of vitamin B6 (p<0.05). Metformin treatment protected against the rise in blood pressure (BP) (p=0.02), independently of changes in plasma glutathione. In summary, oral folic acid supplementation in T2DM reduced plasma Hcy and increased glutathione levels. HbA1c, triglycerides and HDL-cholesterol deteriorated during the trial: their levels correlated inversely with changes in glutathione. The increase in glutathione may depend on an adequate supply of B6, as changes in glutathione correlated with vitamin B6 levels. Reduced Hcy and increased glutathione may both mediate improvement in vascular function and outcome. Some aspects of the response to folate may be different in patients on metformin.
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PMID:The effect of oral folic acid on glutathione, glycaemia and lipids in Type 2 diabetes. 1524 1

Evidence-based guidelines for the treatment of type 2 diabetes mellitus focus on three areas: intensive lifestyle intervention that includes at least 150 minutes per week of physical activity, weight loss with an initial goal of 7 percent of baseline weight, and a low-fat, reduced-calorie diet; aggressive management of cardiovascular risk factors (i.e., hypertension, dyslipidemia, and microalbuminuria) with the use of aspirin, statins, and angiotensin-converting enzyme inhibitors; and normalization of blood glucose levels (hemoglobin A1C level less than 7 percent). Insulin resistance, decreased insulin secretion, and increased hepatic glucose output are the hallmarks of type 2 diabetes, and each class of medication targets one or more of these defects. Metformin, which decreases hepatic glucose output and sensitizes peripheral tissues to insulin, has been shown to decrease mortality rates in patients with type 2 diabetes and is considered a first-line agent. Other medications include sulfonylureas and nonsulfonylurea secretagogues, alpha glucosidase inhibitors, and thiazolidinediones. Insulin can be used acutely in patients newly diagnosed with type 2 diabetes to normalize blood glucose, or it can be added to a regimen of oral medication to improve glycemic control. Except in patients taking multiple insulin injections, home monitoring of blood glucose levels has questionable utility, especially in relatively well-controlled patients. Its use should be tailored to the needs of the individual patient.
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PMID:Management of blood glucose in type 2 diabetes mellitus. 2064 60

Microalbuminuria is thought to reflect the severity of inflammation-induced systemic vascular permeability. The present study investigated the effect of early administration of metformin or insulin on microalbuminuria in traumatized critically ill patients. Between April 2006 and October 2007, thirty-one non-diabetics traumatized patients with systemic inflammatory response syndrome (SIRS) and blood sugar (BS) >130 mg/dL at admission to ICU (Intensive Care Unit) of Sina Hospital (Tehran, Iran), were randomly assigned to receive intensive intravenous insulin (50 IU) or peroral metformin (1000 mg, twice daily) for three days. Microalbuminuria to creatinine ratio (MACR) and BS were measured during the three-day period. Eight patients were excluded during the study and 23 remained for the evaluations. There was no statistically significant difference between two groups with respect to MACR levels at admission and during the three-day period of treatment except for the time 6 and 48 h, that MACR was higher in insulin group than that in metformin group (p < 0.05). Metformin but not insulin reduced BS level significantly (p < 0.05). There was a significant positive correlation between BS and MACR in both insulin (p < 0.05; R(2) = 0.131) and metformin (p < 0.05; R(2) = 0.127) groups. Glasgow Coma Scale (GCS) and APACHE II had significant correlation with MACR in metformin treated patients (p < 0.05; R(2) = 0.134 and p < 0.05; R(2) = 0.149) while in insulin treated patients only the values of GCS had significant correlation with MACR values (p < 0.05, R(2) = 0.124). In conclusion, it was found that peroral metformin may be used instead of intravenous insulin in traumatized critically ill patients for lowering BS and MACR. A predictive role for MACR may be suggested although further studies with larger sample size of patients is required.
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PMID:Microalbuminuria in hyperglycemic critically ill patients treated with insulin or metformin. 2436 93