Endocrine Abstracts

Background: Serum cystatin C is a novel marker for kidney function that has been claimed to be superior to serum creatinine. Cystatin C concentrations increased in the hyperthyroid patients and decreased in the hypothyroid patients. The cystatin C test detects kidney disease at earlier stages, before symptoms appear and creatinine levels rise. Another advantage is that, unlike creatinine, blood levels of cystatin C are less influenced by age, gender, race, or lean muscle mass,...