The kidneys have many tiny blood vessels that filter waste from your blood. High blood sugar from diabetes can destroy these blood vessels. Over time, the kidney isn't able to do its job as well. Later it may stop working completely. This is called kidney failure.
For reasons doctors don't yet understand, only some people who have diabetes get kidney damage.
Certain things make you more likely to get diabetic nephropathy. If you also have high blood pressure or high cholesterol, or if you smoke, your risk is higher. Also, Native Americans, African Americans, and Hispanics (especially Mexican Americans) have a higher risk.
There are no symptoms in the early stages. So it's important to have regular urine tests to find kidney damage early. Sometimes early kidney damage can be reversed.
As your kidneys are less able to do their job, you may notice swelling in your body, most often in your feet and legs.
The problem is diagnosed using simple tests that check for a protein called albuminin the urine. Urine doesn't usually contain protein. But in the early stages of kidney damage—before you have any symptoms—some protein may be found in your urine, because your kidneys aren't able to filter it out the way they should.
Finding kidney damage early can keep it from getting worse. So it's important for people with diabetes to have regular testing, usually every year.
The main treatment is medicine to lower your blood pressure and prevent or slow the damage to your kidneys. These medicines include:
Angiotensin-converting enzyme inhibitors, also called ACE inhibitors.
Angiotensin II receptor blockers, also called ARBs.
As damage to the kidneys gets worse, your blood pressure rises. Your cholesterol and triglyceride levels rise too. You may need to take more than one medicine to treat these complications.
And there are other steps you can take. For example:
Keep your blood sugar levels within your target range. This can help slow the damage to the small blood vessels in the kidneys.
Work with your doctor to keep your blood pressure under control. For most people who have diabetes, the ideal blood pressure is below 120/80. High blood pressure is 140/80 or higher when you have diabetes.
Keep your heart healthy by eating healthy foods and exercising regularly.Preventing heart disease is important, because people with diabetes are more likely to have heart and blood vessel diseases. And people with kidney disease are at an even higher risk for heart disease.
Watch how much protein you eat. Eating too much is hard on your kidneys. If diabetes has affected your kidneys, limiting how much protein you eat may help you preserve kidney function. Talk to your doctor or dietitian about how much protein is best for you.
Watch how much salt you eat. Eating less salt helps keep high blood pressure from getting worse.
Don't smoke or use other tobacco products.
Treatments of Diabetic Nephropathy
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