Membrane Proteins / Immunohistochemistry / Real-time RT-PCR / Hypertension / Renin Angiotensin Aldosterone System / Animals / Male / Proteins / Diabetic Nephropathy / Clinical Sciences / Rats / Public health systems and services research / Analysis of Variance / Protein Expression / Albuminuria / Streptozotocin / Angiotensin II / Diabetic Rat / Spontaneously Hypertensive Rat / Control Group / Gene Expression Regulation / Animals / Male / Proteins / Diabetic Nephropathy / Clinical Sciences / Rats / Public health systems and services research / Analysis of Variance / Protein Expression / Albuminuria / Streptozotocin / Angiotensin II / Diabetic Rat / Spontaneously Hypertensive Rat / Control Group / Gene Expression Regulation