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Genetic Influences Independent Accelerators eg hypertension, lipids, smoking Hyperglycaemia Metabolic Factors Haemodynamic Factors Glucose Toxicity Angiotensin II/renin angiotenin system Glycation Endothelin Polyol Pathway Nitric oxide Hexosamine Pathway
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Genetic InfluencesIndependent Accelerators eg hypertension, lipids, smoking Hyperglycaemia Metabolic FactorsHaemodynamic Factors Glucose Toxicity Angiotensin II/renin angiotenin system Glycation Endothelin Polyol Pathway Nitric oxide Hexosamine Pathway Growth Factors / CytokinesIntracellular Factors TGF-β,VEGF, AGII, DAG-PCK, MAPK NFĸB CTGF, GH, IGF-1 Diabetic Vascular Disease
Hyperglycaemia Increased mitochondrial ROS DNA strand breaks Activation of PARP Inhibition of GAPDH Accumulation of glycolytic intermediates upstream of GAPDH Increased polyol and hexosamine flux, glycation, DAG-PKC
Normoalbuminuria 30-50 % 50 % Microalbuminuria Proteinuria ESRD Increasing blood pressure and cardiovascular risk 20-30 % 30-50%
Insulin Resistance Hypertension High TG Low HDL Central Obesity Microvascular complications Cardiovascular Risk Endothelial Dysfunction Inflammation
Prevalence (% or n) n n n n n Proteinuria Microalbuminuria Neuropathy BP >140/80 mmHg Serum creatinine >176 µmol/l Progression of retinopathy Proliferative retinopathy Laser treatment
Annual, in stable glucose control Serum creatinine, calculate eGFR Early morning urine sample Dip-stick for proteinuria ≥2++ <2 ++ Urine albumin:creatinine ratio 2.5 – 30 mg/mmol (men) 3.5 – 30 mg/mmol (women) Urine Protein:creatinine ratio Yes Repeat x2 within 3 months No Repeat annually