Leucocyte elastase in catalytic amounts was observed to rapidly cleave the Val-10-Gly-11 bond of the human cysteine-proteinase inhibitor cystatin C at neutral pH. The resulting modified inhibitor had size and amino acid composition consistent with a cystatin C molecule devoid of the N-terminal Ser-1-Val-10 decapeptide. Leucocyte-elastase-modified cystatin C had more than 240-fold lower affinity...

PURPOSE Cystatin C has a higher correlation with glomerular filtration rate and a more significant clinical prognosis than creatinine. We sought to determine whether it is a marker of renal function different from creatinine (cystatin C potentially superior to creatinine), in patients with systemic lupus erythematosus. MATERIAL AND METHODS 37 patients with systemic lupus erythematosus were ev...

OBJECTIVE Cystatin C is a very potent inhibitor of cysteine proteinases and, it has been clinically applied as a sensitive marker in monitoring of renal and liver functions. The aim of this study was to reveal whether cystatin C may be a useful marker for distinguishing intra- versus extrahepatic cholestasis. MATERIALS AND METHODS Serum cystatin C concentrations were determined by nephelometr...

Pavlova, A., 2003. Mechanism of action of mammalian cystatins. Studies of inhibition of cysteine endoand exopeptidases by cystatins A and C. Doctor's dissertation. ISSN 1401-6257, ISBN 91-576-6379-3. Mammalian cystatins are tight-binding, reversible inhibitors of potentially destructive cysteine proteases, both endogenous and exogenous. The N-terminal region residues, Ile2 and especially Pro3, ...

BACKGROUND In chronic human immunodeficiency virus (HIV) infection, plasma cystatin C may be influenced by factors other than glomerular filtration rate such as inflammation. Statins may improve cystatin C by improving glomerular function or by decreasing inflammation. METHODS The Stopping Atherosclerosis and Treating Unhealthy Bone With Rosuvastatin in HIV (SATURN-HIV) trial randomized 147 p...

OBJECTIVE Cystatin C is growing to be an ideal indicator for renal function and cardiovascular events. The aim of this study was to investigate the relationship between serum cystatin C levels and peripheral arterial disease and to explore its diagnostic value for lower limb ischemia (LLI) in type 2 diabetic population. METHODS A total of 1609 T2DM patients were included in this cross-section...

UNLABELLED Serum cystatin C concentration, generally accepted as renal function marker, is associated with cardiovascular risk and metabolic syndrome. Recent studies indicate that cystatin C increases in human obesity and that adipose tissue contributes to enhanced serum cystatin C concentration in obese subjects. The aim of the study was to assess whether a reduction in body and fat mass after...

BACKGROUND Serum cystatin C level is a more sensitive marker of renal dysfunction than serum creatinine level. Serum cystatin C level was recently reported to predict the development of cardiovascular disease. This study was performed to evaluate whether the cystatin C level is associated with coronary artery disease (CAD), independent of diabetic nephropathy. METHODS We conducted a case-cont...

BACKGROUND The plasma level of cystatin C is a better marker than plasma creatinine for successful aging. It has been assumed that the advantage of cystatin C is not only due to it being a better marker for glomerular filtration rate (GFR) than creatinine, but also because an inflammatory state of a patient induces a raised cystatin C level. However, the observations of an association between c...

BACKGROUND AND PURPOSE Cystatin C, a serum measure of renal function, has been reported as a strong predictor of risk of death and cardiovascular events in elderly people. We investigated the association between cystatin C and first-ever stroke and evaluated the predictive value of cystatin C in cardiovascular events and death from all causes based on the outcomes of a 5-year follow-up. METHO...