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Updated: Jun 13, 2026
06:58
Physiology Lab Demonstration: Glomerular Filtration Rate in a Rat
Published on: July 26, 2015
Monitoring renal function: measured and estimated glomerular filtration rates - a review
J V Salgado1, F A Neves, M G Bastos
1Departamento de Ciências Farmacêuticas, Universidade de Brasília, DF, Brasil. jvlsalgado@yahoo.com.br <jvlsalgado@yahoo.com.br>
Summary
Chronic kidney disease (CKD) is a global health issue. This review explores cystatin C as a potentially more reliable marker than creatinine for early detection and screening of CKD.
Area of Science:
- Nephrology
- Clinical Chemistry
Background:
- Chronic kidney disease (CKD) presents a significant global health challenge, leading to severe outcomes like kidney failure and cardiovascular disease.
- Early detection and intervention are crucial for improving patient outcomes in CKD.
- Glomerular filtration rate (GFR) is recommended for CKD definition, classification, screening, and monitoring.
Purpose of the Study:
- To evaluate the clinical efficiency and relevance of cystatin C and creatinine as markers for screening chronic kidney disease (CKD).
- To compare the reliability of cystatin C and creatinine in estimating GFR for CKD detection.
Main Methods:
- Systematic literature review of recent studies.
- Analysis of cystatin C and creatinine as markers for kidney function.
- Evaluation of GFR estimation methods in the context of CKD screening.
Main Results:
- Serum creatinine is an unreliable measure of GFR due to various influencing factors (age, weight, muscle mass, race, medications).
- Cystatin C, freely filtered and reabsorbed/catabolized without secretion, shows promise as a superior marker for kidney dysfunction.
- Cystatin C concentration may offer greater accuracy in detecting chronic kidney disease compared to creatinine.
Conclusions:
- Cystatin C is a promising new marker for assessing kidney function in both native and transplanted kidneys.
- Cystatin C concentration may be more effective than creatinine concentration for screening and detecting chronic kidney disease.
- Further evaluation of cystatin C's clinical efficiency in CKD screening is warranted.
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