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Updated: Feb 15, 2026
Assessment of Kidney Function in Mouse Models of Glomerular Disease
Published on: June 30, 2018
Cystatin C is Indispensable for Evaluation of Kidney Disease
1Department of Clinical Chemistry and Pharmacology, Laboratory Medicine, Lund University, Skåne University Hospital, Lund, Sweden.
Insights
Cystatin C-based equations offer superior kidney function estimation compared to creatinine, applicable across all ages and conditions. They are crucial for diagnosing rare syndromes and should be used as frequently as creatinine in clinical practice.
Area of Science:
- Clinical Medicine
- Nephrology
- Biomarkers
Background:
- Current kidney function estimation relies heavily on creatinine-based equations.
- These equations often incorporate demographic factors like race and sex, leading to potential inaccuracies.
- There is a need for more precise and universally applicable methods for assessing glomerular filtration rate (GFR).
Purpose of the Study:
- To review the evidence supporting the use of cystatin C in clinical medicine.
- To highlight the advantages of cystatin C-based GFR-estimating equations over traditional creatinine-based methods.
- To emphasize the diagnostic utility of cystatin C for specific clinical conditions.
Main Methods:
- Minireview of existing scientific literature and clinical evidence.
- Analysis of cystatin C-based GFR-estimating equations.
- Comparison of cystatin C and creatinine in predicting clinical outcomes.
- Discussion of cystatin C's role in diagnosing novel syndromes.
Main Results:
- Cystatin C-based equations are independent of race and sex, applicable to children, adults, and the elderly.
- Simultaneous use of cystatin C and creatinine provides optimal GFR estimation.
- Cystatin C excels in predicting end-stage renal disease, cardiovascular events, hospitalization, and mortality.
- Cystatin C is essential for diagnosing "Shrunken Pore Syndrome" even with normal GFR.
Conclusions:
- Cystatin C offers a more accurate and versatile GFR estimation than creatinine alone.
- The cost-effectiveness of cystatin C is comparable to creatinine with automated laboratory equipment.
- Cystatin C should be utilized at least as frequently as creatinine in routine clinical practice.
Abstract:
The present minireview of the place of cystatin C in clinical medicine emphasizes, and discuss the evidence, that cystatin C-based GFR-estimating equations do not require the use of vague terms like race and sex, that cystatin C-based GFR-esti mating equations are useful for both children and adults, including the elderly, that the best GFR-estimation requires simultaneous use of both cystatin C- and creatinine-based equations, that cystatin C-based GFR-estimating equations are superior to creatinine-based equations in predicting end-stage renal disease, cardiovascular manifestations, hospitalisation and death, and, finally that cystatin C is required to diagnose the new syndrome "Shrunken Pore Syndrome" with its high mortality and morbidity, even in the absence of reduced GFR. When automated laboratory equipment is available, the cost of cystatin C is comparable to that of enzymatically determined creatinine. The conclusion is that cystatin C should be used at least as often as creatinine in clinical medicine.
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