Identification of cystatin C as a new marker of glomerular filtration rate, and of shrunken pore syndrome - a new kidney disorder defining selective glomerular hypofiltration syndromes - calls for expansion of the international KDIGO guidelines. - 2025
Identification of cystatin C as a new marker of glomerular filtration rate, and of shrunken pore syndrome - a new kidney disorder defining selective glomerular hypofiltration syndromes - calls for expansion of the international KDIGO guidelines.
[en] Cystatin C was identified as a marker of glomerular filtration rate (GFR) in 1979, and the parallel analysis of cystatin C and creatinine led to the identification of shrunken pore syndrome (SPS) - a new kidney disorder - in 2015. Since then, it has been shown that cystatin C in many aspects is superior to creatinine as a marker of GFR and cardiovascular risk. SPS, an entity within the selective glomerular hypofiltration syndromes (SGHS), has been demonstrated to be associated with a strong increase in morbidity and mortality in several populations. Despite the seriousness of SPS and SGHS, and the availability of potential treatments, many patients with these conditions remain undiagnosed, due to the limitations of the international Kidney Disease Improving Global Outcomes Organization (KDIGO) guidelines. Given the significant clinical advantages of cystatin C in diagnosing and treating kidney disorders, there is a need to expand the KDIGO guidelines to include cystatin C measurements alongside creatinine at least in the initial patient evaluation but also in follow-up evaluations. This would improve the early detection and management of patients with kidney diseases, ultimately enhancing patient outcomes. The present discourse summarizes the development of this understanding from the original observations in 1979 and 2015 to the latest findings.
Disciplines :
Urology & nephrology
Author, co-author :
Åkesson, Anna ; Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden ; Clinical Studies Sweden - Forum South, Skåne University Hospital, Lund, Sweden
Öberg, Carl ; Department of Clinical Sciences Lund, Lund University, Lund, Sweden ; Department of Nephrology, Skåne University Hospital, Lund, Sweden
Malmgren, Linnea ; Department of Clinical Sciences Malmö, Clinical and Molecular Osteoporosis Research Unit, Lund University, Malmö, Sweden ; Department of Geriatrics, Skåne University Hospital, Malmö, Sweden
Nilsson, Christopher ; Department of Clinical Sciences, Malmö, Lund University, Sweden Lund
Itoh, Yoshi; Clinical Laboratory, Eiju General Hospital, Life Extension Research Institute, Tokyo, Japan
Blirup-Jensen, Søren; Division of Clinical Chemistry and Pharmacology, Department of Laboratory Medicine, Lund University, Lund, Sweden
Lindström, Veronica; Division of Clinical Chemistry and Pharmacology, Department of Laboratory Medicine, Lund University, Lund, Sweden
Abrahamson, Magnus ; Division of Clinical Chemistry and Pharmacology, Department of Laboratory Medicine, Lund University, Lund, Sweden
Leion, Felicia; Division of Clinical Chemistry and Pharmacology, Department of Laboratory Medicine, Lund University, Lund, Sweden
Olafsson, Isleifur; Department of Clinical Biochemistry, Landspitali - National University Hospital of Iceland, Reykjavik, Iceland
Bjursten, Henrik ; Department of Cardiothoracic Surgery, Skåne University Hospital, Lund University, Lund, Sweden
Grubb, David; Department of Cardiothoracic Surgery, Skåne University Hospital, Lund University, Lund, Sweden
Herou, Erik ; Department of Cardiothoracic Surgery, Skåne University Hospital, Lund University, Lund, Sweden
Dardashti, Alain ; Department of Cardiothoracic Surgery, Skåne University Hospital, Lund University, Lund, Sweden
Sigurjonsson, Johann; Department of Cardiothoracic Surgery, Skåne University Hospital, Lund University, Lund, Sweden
Xhakollari, Liana; Department of Clinical Sciences, Malmö, Lund University, Sweden Lund ; Department of Nephrology, Skåne University Hospital, Malmö, Sweden
Laucyte-Cibulskiene, Agne ; Department of Clinical Sciences, Malmö, Lund University, Sweden Lund
Pottel, Hans ; Université de Liège - ULiège > Département des sciences cliniques ; Department of Public Health and Primary Care, KULeuven Campus Kulak Kortrijk, Kortrijk, Belgium
Strevens, Helena ; Department of Obstetrics and Gynecology, Lund University, Skåne University Hospital, Lund, Sweden
Damm, Danielle; Department of Obstetrics and Gynecology, Lund University, Skåne University Hospital, Lund, Sweden
Förnvik Jonsson, Magnus ; Department of Clinical Chemistry and Pharmacology, Skåne University Hospital, Lund, Sweden
Siódmiak, Joanna ; Department of Laboratory Medicine, Faculty of Pharmacy, Ludwik Rydygier Collegium Medicum (Nicolaus Copernicus University in Torun), Bydgoszcz, Poland
Ärnlöv, Johan ; Department of Neurobiology, Care Sciences and Society (NVS), Family Medicine and Primary Care Unit, Karolinska Institute, Huddinge, Sweden ; School of Health and Social Studies, Dalarna University, Falun, Sweden
Larsson, Anders ; Department of Medical Sciences, Clinical Chemistry, Uppsala University Hospital, Uppsala, Sweden
Åkerfeldt, Torbjörn; Department of Medical Sciences, Clinical Chemistry, Uppsala University Hospital, Uppsala, Sweden
Kultima, Kim ; Department of Medical Sciences, Clinical Chemistry, Uppsala University Hospital, Uppsala, Sweden
Ridefelt, Peter ; Department of Medical Sciences, Clinical Chemistry, Uppsala University Hospital, Uppsala, Sweden
Helmersson-Karlqvist, Johanna ; Department of Medical Sciences, Clinical Chemistry, Uppsala University Hospital, Uppsala, Sweden
Magnusson, Martin ; Department of Clinical Sciences, Lund University, Malmö, Sweden ; Department of Cardiology, Skåne University Hospital, Malmö, Sweden ; Wallenberg Center for Molecular Medicine, Lund University, Lund, Sweden ; Hypertension in Africa Research Team (HART), North West University, Potchefstroom, South Africa
Hansson, Magnus ; Department of Laboratory Medicine, Division of Clinical Chemistry, Karolinska Institutet, Stockholm and Department of Clinical Chemistry, Karolinska University Hospital, Stockholm, Sweden
Sjöström, Anna ; Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm and Department of Clinical Chemistry, Karolinska University Hospital, Stockholm, Sweden
Soveri, Inga; Department of Medical Sciences, Nephrology Uppsala University Hospital, Uppsala, Sweden
Tenstad, Olav ; Department of Biomedicine, University of Bergen, Bergen, Norway
Mårtensson, Johan ; Department of Physiology and Pharmacology, Section of Anaesthesia and Intensive Care, Karolinska Institute, Stockholm, Sweden
Elinder, Carl-Gustaf; Division of Renal Medicine, Department of Clinical Intervention, and Technology, Karolinska University Hospital and Karolinska Institute, Stockholm, Sweden
Risch, Lorenz ; Faculty of Medical Sciences, Private University in the Principality of Liechtenstein, Triesen, Liechtenstein ; University Institute of Clinical Chemistry, University Hospital and University of Bern, Inselspital, Bern, Switzerland
Risch, Martin ; Central Laboratory, Cantonal Hospital Graubünden, Chur, Switzerland ; Dr. Risch Medical Laboratory, Sonic Suisse, Vaduz, Liechtenstein
Hansson, Lars-Olof; Department of Medical Sciencies, Clinical Chemistry, Uppsala University Hospital, Uppsala, Sweden
Price, Christopher P; Emeritus Professor in Clinical Biochemistry, Queen Mary, University of London, London, UK
Nyman, Ulf ; Department of Translational Medicine, Division of Medical Radiology, University of Lund, Malmö, Sweden
Björk, Jonas ; Division of Occupational and Environmental Medicine, Lund University, Lund, Sweden ; Clinical Studies Sweden - Forum South, Skåne University Hospital, Lund, Sweden
Delanaye, Pierre ; Université de Liège - ULiège > Département des sciences cliniques > Néphrologie ; Department of Nephrology-Dialysis-Apheresis, Hôpital Universitaire Carémeau, Nîmes, France
Bökenkamp, Arend ; Department of Paediatric Nephrology, Emma Children's Hospital, Amsterdam UMC, The Netherlands
Christensson, Anders ; Department of Nephrology, Skåne University Hospital, Lund University, Malmö, Sweden
Grubb, Anders ; Division of Clinical Chemistry and Pharmacology, Department of Laboratory Medicine, Lund University, Lund, Sweden
Identification of cystatin C as a new marker of glomerular filtration rate, and of shrunken pore syndrome - a new kidney disorder defining selective glomerular hypofiltration syndromes - calls for expansion of the international KDIGO guidelines.
Publication date :
2025
Journal title :
Scandinavian Journal of Clinical and Laboratory Investigation
Löfberg H, Grubb A., Quantitation of γ-trace in human biological fluids: indications for production in the central nervous system. Scand J Clin Lab Invest. 1979;39(7):619–626. doi: 10.3109/00365517909108866.
Grubb A, Simonsen O, Sturfelt G, et al.Serum concentration of cystatin C, factor D and β2-microglobulin as a measure of glomerular filtration rate. Acta Med Scand. 1985;218:499–503.
Simonsen O, Grubb A, Thysell H., The blood serum concentration of cystatin C (γ-trace) as a measure of the glomerular filtration rate. Scand J Clin Lab Invest. 1985;45(2):97–101. doi: 10.3109/00365518509160980.
Grubb A, Löfberg H., Human γ-trace. Structure, function and clinical use of concentration measurements. Scand J Clin Lab Invest. 1985;45(Suppl 177):7–13.
Grubb A, Horio M, Hansson LO, et al.Generation of a new cystatin C-based estimating equation for glomerular filtration rate using seven assays standardized to the international calibrator. Clin Chem. 2014;60(7):974–986. doi: 10.1373/clinchem.2013.220707.
Inker LA, Eneanya ND, Coresh J, et al.Chronic kidney disease epidemiology collaboration. New creatinine- and cystatin C-based equations to estimate GFR without race. N Engl J Med. 2021;385(19):1737–1749. doi: 10.1056/NEJMoa2102953.
Pottel H, Björk J, Rule AD, et al.Cystatin C–based equation to estimate GFR without the inclusion of race and sex. N Engl J Med. 2023;388(4):333–343. doi: 10.1056/NEJMoa2203769.
Björk J, Nyman U, Berg U, et al.Extending the Lund-Malmö creatinine-based GFR equation to cystatin C–validation results from the European Kidney Function Consortium (EKFC) cohort of children and adults. Scand J Clin Lab Invest. 2024;84(7-8):577–583. doi: 10.1080/00365513.2024.2441280.
Bökenkamp A, Domanetzki M, Zinck R, et al.Reference values for cystatin C serum concentrations in children. Pediatr Nephrol. 1998;12(2):125–129. doi: 10.1007/s004670050419.
Blirup-Jensen S, Grubb A, Lindström V, et al.Standardization of cystatin C: development of primary and secondary reference preparations. Scand J Clin Lab Invest. 2008;68(Suppl. 241):67–70.
Zegers I, Auclair G, Schimmel H, et al.Certification of cystatin C in the human serum reference material ERM-DA471/IFCC. EUR 24408 EN, European Communities, Luxembourg, 2010, ISBN 978-92-79-07562- 9. In: European Communities. ed Vol. Luxembourg; 2010. p. 1–26.
Grubb A, Blirup-Jensen S, Lindström V, et al.on behalf of the IFCC Working Group on standardisation of cystatin C (WG-SCC): First certified reference material for cystatin C in human serum ERM-DA471/IFCC. Clin Chem Lab Med. 2010;48(11):1619–1621. doi: 10.1515/CCLM.2010.318.
Zeegers I, Blirup-Jensen S, Althaus H, et al.Preliminary commutability study on candidate reference material for cystatin C. AACC Annual Meeting. 2010;56(supplement):A99.
Kyhse-Andersen J, Schmidt C, Nordin G, et al.Serum cystatin C, determined by a rapid, automated particle-enhanced turbidimetric method, is a better marker than serum creatinine for glomerular filtration rate. Clin Chem. 1994;40(10):1921–1926. doi: 10.1093/clinchem/40.10.1921.
Nilsson-Ehle P, Grubb A., New markers for the determination of GFR: Iohexol clearance and cystatin C serum concentration. Kidney Int. 1994;46(Suppl. 47):17–19.
Newman DJ, Thakkar H, Edwards RG, et al.Serum cystatin C measured by automated immunoassay: a more sensitive marker of changes in GFR than serum creatinine. Kidney Int. 1995;47(1):312–318. doi: 10.1038/ki.1995.40.
Dharnidharka VR, Kwon C, Stevens G., Serum cystatin C is superior to serum creatinine as a marker of kidney function: a meta-analysis. Am J Kidney Dis. 2002;40(2):221–226. doi: 10.1053/ajkd.2002.34487.
Lees JS, Welsh CE, Celis-Morales CA, et al.Glomerular filtration rate by differing measures, albuminuria and prediction of cardiovascular disease, mortality and end-stage kidney disease. Nat Med. 2019;25(11):1753–1760. doi: 10.1038/s41591-019-0627-8.
Thomassen SA, Johannesen IL, Erlandsen EJ, et al.Serum cystatin C as a marker of the renal function in patients with spinal cord injury. Spinal Cord. 2002;40(10):524–528. doi: 10.1038/sj.sc.3101320.
Risch L, Herklotz R, Blumberg A, et al.Effects of glucocorticoid immunosuppression on serum cystatin C concentrations in renal transplant patients. Clin Chem. 2001;47(11):2055–2059. doi: 10.1093/clinchem/47.11.2055.
Cockcroft DW, Gault MH., Prediction of creatinine clearance from serum creatinine. Nephron. 1976;16(1):31–41. doi: 10.1159/000180580.
Levey AS, Coresh J, Greene T, et al.Using standardized serum creatinine values in the Modification of Diet in Renal Disease study equation for estimating glomerular filtration rate. Ann Intern Med. 2006;145(4):247–254. doi: 10.7326/0003-4819-145-4-200608150-00004.
Hoek FJ, Kemperman FA, Krediet RT., A comparison between cystatin C, plasma creatinine and the Cockcroft and Gault formula for the estimation of glomerular filtration rate. Nephrol Dial Transplant. 2003;18(10):2024–2031. doi: 10.1093/ndt/gfg349.
Larsson A, Malm J, Grubb A, et al.Calculation of glomerular filtration rate expressed in mL/min from plasma cystatin C values in mg/L. Scand J Clin Lab Invest. 2004;64(1):25–30. doi: 10.1080/00365510410003723.
Rule AD, Bergstralh EJ, Slezak JM, et al.Glomerular filtration rate estimated by cystatin C among different clinical presentations. Kidney Int. 2006;69(2):399–405. doi: 10.1038/sj.ki.5000073.
Bouvet Y, Bouissou F, Coulais Y, et al.GFR is better estimated by considering both serum cystatin C and creatinine levels. Pediatr Nephrol. 2006;21(9):1299–1306. doi: 10.1007/s00467-006-0145-z.
Ma YC, Zuo L, Chen JH, et al.Improved GFR estimation by combined creatinine and cystatin C measurements. Kidney Int. 2007;72(12):1535–1542. doi: 10.1038/sj.ki.5002566.
Stevens LA, Coresh J, Schmid CH, et al.Estimating GFR using cystatin C alone and in combination with serum creatinine: a pooled analysis of 3,418 individuals with CKD. Am J Kidney Dis. 2008;51(3):395–406. doi: 10.1053/j.ajkd.2007.11.018.
Tidman M, Sjöström P, Jones I., A comparison of GFR estimating formulae based upon s-cystatin C and s-creatinine and a combination of the two. Nephrol Dial Transplant. 2008;23(1):154–160. doi: 10.1093/ndt/gfm661.
Fu EL, Levey AS, Coresh J, et al.Accuracy of GFR estimating equations in patients with discordances between creatinine and cystatin C-based estimations. J Am Soc Nephrol. 2023;34(7):1241–1251. doi: 10.1681/ASN.0000000000000128.
Fu EL, Levey AS, Coresh J, et al.Accuracy of GFR estimating equations based on creatinine, cystatin C or both in routine care. Nephrol Dial Transplant. 2024;39(4):694–706. doi: 10.1093/ndt/gfad219.
Stehlé T, Delanaye P., Which is the best glomerular filtration marker: creatinine, cystatin C or both?Eur J Clin Invest. 2024;54(10):e14278. doi: 10.1111/eci.14278.
Grubb A., Non-invasive estimation of glomerular filtration rate (GFR). The Lund model: simultaneous use of cystatin C- and creatinine-based GFR-prediction equations, clinical data and an internal quality check. Scand J Clin Lab Invest. 2010;70(2):65–70. doi: 10.3109/00365511003642535.
Nyman U, Grubb A, Sterner G, et al.Different equations to combine creatinine and cystatin C to predict GFR. Arithmetic mean of existing equations performs as well as complex combinations. Scand J Clin Lab Invest. 2009;69(5):619–627. doi: 10.1080/00365510902946992.
den Bakker E, Gemke R, van Wijk JAE, et al.Combining GFR estimates from cystatin C and creatinine—what is the optimal mix?Pediatr Nephrol. 2018;33(9):1553–1563. doi: 10.1007/s00467-018-3973-8.
van Roij KGE, van der Horst HJR, Hubeek I, et al.Discrepant results of serum creatinine and cystatin C in a urological patient. Clin Chem. 2017;63(4):812–814. doi: 10.1373/clinchem.2016.261925.
Jernberg T, Lindahl B, James S, et al.Cystatin C: a novel predictor of outcome in suspected or confirmed non-ST-elevation acute coronary syndrome. Circulation. 2004;110(16):2342–2348. doi: 10.1161/01.CIR.0000145166.44942.E0.
Shlipak MG, Sarnak MJ, Katz R, et al.Cystatin C and the risk of death and cardiovascular events among elderly persons. N Engl J Med. 2005;352(20):2049–2060. doi: 10.1056/NEJMoa043161.
Peralta C, Shlipak MG, Judd S, et al.Detection of chronic kidney disease with creatinine, cystatin C, and urine albumin-to-creatinine ratio and association with progression to end-stage renal disease and mortality. JAMA. 2011;305(15):1545–1552. doi: 10.1001/jama.2011.468.
Shlipak MG, Matsushita K, Ärnlöv J, et al.Cystatin C versus creatinine in determining risk based on kidney function. N Engl J Med. 2013;369(10):932–943. doi: 10.1056/NEJMoa1214234.
Canney M, Sexton E, Tobin K, et al.The relationship between kidney function and quality of life among community-dwelling adults varies by age and filtration marker. Clin Kidney J. 2018;11(2):259–264. doi: 10.1093/ckj/sfx084.
Helmersson-Karlqvist J, Lipcsey M, Ärnlöv J, et al.Cystatin C predicts long term mortality better than creatinine in a nationwide study of intensive care patients. Sci Rep. 2021;11(1):5882. doi: 10.1038/s41598-021-85370-8.
Sundin PO, Sjöström P, Jones I, et al.Measured GFR does not improve prediction of mortality by cystatin C and creatinine. Nephrol Dial Transplant. 2017;32(4):663–670. doi: 10.1093/ndt/gfx004.
Knight EL, Verhave JC, Spiegelman D, et al.Factors influencing serum cystatin C levels other than renal function and the impact on renal function measurement. Kidney Int. 2004;65(4):1416–1421. doi: 10.1111/j.1523-1755.2004.00517.x.
Akerfeldt T, Helmersson J, Larsson A., Postsurgical inflammatory response is not associated with increased serum cystatin C values. Clin Biochem. 2010;43(13-14):1138–1140. doi: 10.1016/j.clinbiochem.2010.07.004.
Grubb A, Björk J, Nyman U, et al.Cystatin C, a marker for successful aging and glomerular filtration rate, is not influenced by inflammation. Scand J Clin Lab Invest. 2011;71(2):145–149. doi: 10.3109/00365513.2010.546879.
Mårtensson J, Martling C-R, Oldner A, et al.Impact of sepsis on levels of plasma cystatin C in AKI and non-AKI patients. Nephrol Dial Transplant. 2012;27(2):576–581. doi: 10.1093/ndt/gfr358.
Albert MA, Ridker PM., The role of C-reactive protein in cardiovascular disease risk. Curr Cardiol Rep. 1999;1(2):99–104. doi: 10.1007/s11886-999-0066-0.
Grubb A, Lindström V, Jonsson M, et al.Reduction in glomerular pore size is not restricted to pregnant women. Evidence for a new syndrome: “Shrunken pore syndrome. Scand J Clin Lab Invest. 2015;75(4):333–340. doi: 10.3109/00365513.2015.1025427.
Strevens H, Wide-Swensson D, Torffvit O, et al.Serum cystatin C for assessment of glomerular filtration rate in pregnant and non-pregnant women. Indications of altered filtration process in pregnancy. Scand J Clin Lab Invest. 2002;62(2):141–147. doi: 10.1080/003655102753611771.
Kristensen K, Lindström V, Schmidt C, et al.Temporal changes of the plasma levels of cystatin C, beta-trace protein, β2-microglobulin, urate and creatinine during pregnancy indicate continuous alterations in the renal filtration process. Scand J Clin Lab Invest. 2007;67(6):612–618. doi: 10.1080/00365510701203488.
Grubb A, Lindström V, Kristensen K, et al.Filtration quality: a new measure of renal disease. Clin Chem Lab Med. 2007;45(Suppl. S):273–274.
Strevens H, Wide-Swensson D, Grubb A., Serum cystatin C is a better marker for preeclampsia than serum creatinine or serum urate. Scand J Clin Lab Invest. 2001;61(7):575–580. doi: 10.1080/003655101753218346.
Kristensen K, Wide-Swensson D, Schmidt C, et al.Cystatin C, beta-2-microglobulin and beta-trace protein in pre-eclampsia. Acta Obstet Gynecol Scand. 2007;86(8):921–926. doi: 10.1080/00016340701318133.
Dardashti A, Nozohoor S, Grubb A, et al.Shrunken Pore Syndrome is associated with a sharp rise in mortality in patients undergoing elective coronary artery bypass grafting. Scand J Clin Lab Invest. 2016;76(1):74–81. doi: 10.3109/00365513.2015.1099724.
Purde MT, Nock S, Risch L, et al.The cystatin C/creatinine ratio, a marker of glomerular filtration quality: associated factors, reference intervals, and prediction of morbidity and mortality in healthy seniors. Transl Res. 2016;169:80–90.e2. doi: 10.1016/j.trsl.2015.11.001.
Purde MT, Nock S, Risch L, et al.Ratio of cystatin C and creatinine based estimates of the glomerular filtration rate predicts mortality in healthy seniors independent of kidney function. Scand J Clin Lab Invest. 2016;76(4):341–343. doi: 10.3109/00365513.2016.1149882.
Christensson A, Grubb A, Molvin J, et al.The shrunken pore syndrome is associated with declined right ventricular systolic function in a heart failure population—the HARVEST study. Scand J Clin Lab Invest. 2016;76(7):568–574. doi: 10.1080/00365513.2016.1223338.
Risch M, Risch L, Purde MT, et al.Association of the cystatin C/creatinine ratio with the renally cleared hormones parathyroid hormone (PTH) and brain natriuretic peptide (BNP) in primary care patients: a cross-sectional study. Scand J Clin Lab Invest. 2016;76(5):379–385. doi: 10.1080/00365513.2016.1183262.
Sällman-Almén M, Björk J, Nyman U, et al.Shrunken pore syndrome is associated with increased levels of atherosclerosis-promoting proteins. Kidney Int Rep. 2018;4:67–79.
Jarquin Campos A, Risch L, Baumann M, et al.Shrunken pore syndrome, preeclampsia, and markers of NO metabolism in pregnant women during the first trimester. Scand J Clin Lab Invest. 2019;79(1-2):91–98. doi: 10.1080/00365513.2019.1568150.
Herou E, Dardashti A, Nozohoor S, et al.The mortality increase in cardiac surgery patients associated with shrunken pore syndrome correlates with the eGFRcystatin C/eGFRcreatinine-ratio. Scand J Clin Lab Invest. 2019;79(3):167–173. doi: 10.1080/00365513.2019.1576101.
Xhakollari L, Grubb A, Jujic A, et al.The shrunken pore syndrome is associated with poor prognosis and lower quality of life in heart failure patients—the HARVEST-Malmö study. ESC Heart Fail. 2021;8(5):3577–3586. doi: 10.1002/ehf2.13485.
Malmgren L, McGuigan FE, Christensson A, et al.Impaired selective renal filtration captured by eGFRcysC/eGFRcrea ratio is associated with mortality in a population based cohort of older women. Sci Rep. 2022;12(1):1273. doi: 10.1038/s41598-022-05320-w.
Khang AR, Lee MJ, Yi D, et al.The ratio of estimated glomerular filtration rate based on cystatin C and creatinine reflecting cardiovascular risk in diabetic patients. Diabetes Metab J. 2023;47(3):415–425. doi: 10.4093/dmj.2022.0177.
Farrington DK, Surapaneni A, Matsushita K, et al.Discrepancies between cystatin C-based and creatinine-based eGFR. Clin J Am Soc Nephrol. 2023;18(9):1143–1152. doi: 10.2215/CJN.0000000000000217.
Zhang LW, Luo MQ, Xie XW, et al.Shrunken pore syndrome: a new and more powerful phenotype of renal dysfunction than chronic kidney disease for predicting contrast-associated acute kidney injury. J Am Heart Assoc. 2023;12(1):e027980. doi: 10.1161/JAHA.122.027980.
Yang Y, Yang B, Zhao S, et al.A lower eGFRcystatin C/eGFRcreatinine ratio is associated with greater cardiovascular risk (higher Framingham Risk Score) in Chinese patients with newly diagnosed type 2 diabetes mellitus. Ren Fail. 2024;46(2):2346267.
Damm D, Grubb A, Strevens H., The eGFRcystatin C/eGFRcreatinine-ratio is associated with maternal morbidity in hypertensive disorders in pregnancy and may indicate optimal timing of delivery. Scand J Clin Lab Invest. 2024;84(7–8):441–446. doi: 10.1080/00365513.2024.2417379.
Åkesson A, Lindström V, Nyman U, et al.Shrunken pore syndrome and mortality: a cohort study of patients with measured GFR and known comorbidities. Scand J Clin Lab Invest. 2020;80(5):412–422. doi: 10.1080/00365513.2020.1759139.
Bruce DG, Davis WA, Chubb SAP, et al.The relationship between shrunken pore syndrome and all-cause mortality in people with type 2 diabetes and normal renal function: the Freemantle Diabetes Study Phase II. Diabetologia. 2025;68(7):1440–1451. Epub ahead of print. PMID: 40257600. doi: 10.1007/s00125-025-06430-6.
Potok OA, Katz R, Bansal N, et al.The difference between cystatin C- and creatinine- based estimated GFR and incident frailty: an analysis of the cardiovascular health study (CHS). Am J Kidney Dis. 2020;76(6):896–898. doi: 10.1053/j.ajkd.2020.05.018.
Potok OA, Ix JH, Shlipak MG, et al.Cystatin C- and creatinine-based glomerular filtration rate estimation differences and muscle quantity and functional status in older adults: the health, aging, and body composition study. Kidney Med. 2022;4(3):100416. MGdoi: 10.1016/j.xkme.2022.100416.
Chen DC, Shlipak MG, Scherzer R, et al.Association of intraindividual difference in estimated glomerular filtration rate by creatinine vs cystatin C and end-stage kidney disease and mortality. JAMA Netw Open. 2022;5(2):e2148940. doi: 10.1001/jamanetworkopen.2021.48940.
Carrero JJ, Fu EL, Sang Y, et al.Discordances between creatinine and cystatin C based estimated GFR and adverse clinical outcomes in routine clinical practice. Am J Kidney Dis. 2023;82(5):534–542. doi: 10.1053/j.ajkd.2023.04.002.
Pinsino A, Carey MR, Husain S, et al.The difference between cystatin C and creatinine-based eGFR in heart failure with reduced ejection fraction: insights from PARADIGM-HF. Am J Kidney Dis. 2023;82(5):521–533. doi: 10.1053/j.ajkd.2023.03.005.
Åkesson A, Malmgren L, Leion F, et al.Different ways of diagnosing selective glomerular hypofiltration syndromes such as shrunken pore syndrome and the associated increase in mortality. J Intern Med. 2025;297(1):79–92. doi: 10.1111/joim.20035.
Öberg CM, Lindström M, Grubb A, et al.Potential relationship between eGFRcystatin C/eGFRcreatinine-ratio and glomerular basement membrane thickness in diabetic kidney disease. Physiol Rep. 2021;9:e14939.
Grubb A., Shrunken pore syndrome–a common kidney disorder with high mortality. Diagnosis, prevalence, pathophysiology and treatment options. Clin Biochem. 2020;83:12–20. doi: 10.1016/j.clinbiochem.2020.06.002.
Malmgren L, Öberg C, den Bakker E, et al.The complexity of kidney disease and diagnosing it–cystatin C, selective glomerular hypofiltration syndromes and proteome regulation. J Intern Med. 2023;293(3):293–308. doi: 10.1111/joim.13589.
Malmgren L, Grubb A., Muscle mass, creatinine and selective glomerular hypofiltration syndromes. Clin Kidney J. 2023;16(8):1206–1210. doi: 10.1093/ckj/sfad086.
Kidney Disease: improving Global Outcomes (KDIGO) CKD Work Group. KDIGO 2024 clinical practice guideline for the evaluation and management of chronic kidney disease. Kidney Int. 2024;105(4S):S117–S314. doi: 10.1016/j.kint.2023.10.018.
Xhakollari L, Jujic A, Molvin J, et al.Proteins linked to atherosclerosis and cell proliferation are associated with the shrunken pore syndrome in heart failure patients: shrunken pore syndrome and proteomic associations. Proteomics Clin Appl. 2021;15(4):e2000089. doi: 10.1002/prca.202000089.
Christensson A, Ash JA, DeLisle RK, et al.The impact of the glomerular filtration rate on the human plasma proteome. Proteomics Clin Appl. 2018;12(3):e1700067. doi: 10.1002/prca.201700067.
Roberts M, Lindheimer MD, Davison JM., Altered glomerular permselectivity to neutral dextrans and heteroporous membrane modeling in human pregnancy. Am J Physiol. 1996;270(2 Pt 2):F338–343. doi: 10.1152/ajprenal.1996.270.2.F338.
Sigurjonsson J, Grubb D, Grubb A, et al.A study of size-selective renal elimination using a novel human model. Scand J Clin Lab Invest. 2024;84(2):115–120. doi: 10.1080/00365513.2024.2338742.
Kurlak LO, Mistry HD, Pecks U, et al.Changed renal function after pregnancy both with and without a hypertensive disorder: medical complications of pregnancy related to hypertensive syndromes. Pregnancy Hypertens. 2016;6:166.
Shen R, Xu Z, Lin L, et al.Association between adequate dietary protein and all-cause and cardiovascular mortality in patients with selective glomerular hypofiltration syndrome. Food Funct. 2024;15(5):2433–2442. doi: 10.1039/d3fo03212d.
National Kidney Foundation. K/DOQI clinical practice guidelines for chronic kidney disease: evaluation, classification, and stratification. Am J Kidney Dis. 2002;39(2 Suppl 1):S1–S266. PMID: 11904577.
Kidney Disease: improving Global Outcomes (KDIGO) Glomerular Diseases Work Group. KDIGO 2021 clinical practice guideline for the management of glomerular diseases. Kidney Int. 2021;100(4S):S1–S276. PMID: 34556256. doi: 10.1016/j.kint.2021.05.021.
Kidney Disease: improving Global Outcomes (KDIGO) CKD Work Group. KDIGO 2012 clinical practice guideline for the evaluation and management of chronic kidney disease. Kidney Int. 2013;(3 Suppl):1–150.
Delgado C, Baweja M, Crews DC, et al.A unifying approach for GFR estimation: recommendations of the NKF-ASN task force on reassessing the inclusion of race in diagnosing kidney disease. Am J Kidney Dis. 2022;79(2):268–288.e1. doi: 10.1053/j.ajkd.2021.08.003.
Hundemer GL, Sood MM, Akbari A., Beyond creatinine: is cystatin C the new global standard for estimated glomerular filtration rate evaluation?Kidney Med. 2024;6(4):100806. doi: 10.1016/j.xkme.2024.100806.
Benoit SW, Ciccia EA, Devarajan P., Cystatin C as a biomarker of chronic kidney disease: latest developments. Expert Rev Mol Diagn. 2020;20(10):1019–1026. doi: 10.1080/14737159.2020.1768849.
Shardlow A, McIntyre NJ, Fraser SDS, et al.The clinical utility and cost impact of cystatin C measurement in the diagnosis and management of chronic kidney disease: a primary care cohort study. PLoS Med. 2017;14(10):e1002400. doi: 10.1371/journal.pmed.1002400.