Pregnancy or breast-feeding;

Intolerance to the study protocols;

Severe, unstable, active, or chronic inflammation disease (active infection, active connective tissue disorder, active cancer, HIV, liver disease);

Chronic use of anti-inflammatory medication except low dose (\< 10mg/d) prednisone;

Severe hypokalemia (K+ level \< 3.0 mEq/L);

Hypercalcemia (Ca++ level \> 11.0 mg/dL);

Have a glycogen storage disease;

Intolerant to maltose or isomaltose;

Allergic to cornstarch or icodextrin;

Recent abdominal surgery in the past 30 days;

Chronic Obstructive Lung Disease (COPD) or Interstitial lung disease;

Insulin-Dependent Diabetes Mellitus (IDDM).

The Measurement of Insulin Resistance in Peritoneal Dialysis Patients