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 ...

We have investigated the inhibition of the recently identified family C13 cysteine peptidase, pig legumain, by human cystatin C. The cystatin was seen to inhibit enzyme activity by stoichiometric 1:1 binding in competition with substrate. The Ki value for the interaction was 0.20 nM, i.e. cystatin C had an affinity for legumain similar to that for the papain-like family C1 cysteine peptidase, c...

background: acute kidney injury (aki) is a common problem in critically ill patients and is independently associated with increased morbidity and mortality. recently, serum cystatin c has been shown to be superior to creatinine in early detection of renal function impairment. we compared estimated gfr based on serum cystatin c with estimated gfr based on serum creatinine for early detection of ...

the objective of this study was to determine and compare cystatin c changes before and after radiotherapy in patients with stomach cancer who were candidate for radiotherapy. this study was conducted as a prospective cohort one. eighteen patients with definite diagnosis of stomach cancer under treatment by radiotherapy who presented to radiotherapy-oncology center of imam hossein hospital, tehr...

Cystatin C is believed to prevent tumor progression by inhibiting the activities of a family of lysosomal cysteine proteases. However, little is known about the precise mechanism of cystatin C function in prostate cancer. In the present study, we examined the expression of cystatin C and its association with matrix metalloproteinases 2 (MMP2) and androgen receptor (AR) in a tissue microarray co...

Cystatin C, an established marker of renal dysfunction, is gaining importance in dysfunction of other organs (systems) as well. Preliminary studies indicated a role for cystatin C as a prognostic marker in coronary artery disease (CAD). The aim of the study was to assess the of serum cystatin C levels in CAD cases and its comparison with controls. Comparison of serum cystatin C levels in CAD sp...

AIMS Cystatin C, a novel marker of renal function, has been implicated as a prognostic marker in cardiovascular disease. We investigated the prognostic value of cystatin C in acute heart failure (AHF) in comparison to other markers of renal function and NT-proBNP. METHODS AND RESULTS Patients with cystatin C measurements (n = 480) from a prospective multicentre study on AHF were included. All...

Hereditary cystatin C amyloid angiopathy (HCCAA) is an autosomal dominant condition in which the patients suffer at an early age from repeated cerebral haemorrhages. The development of HCCAA is directly linked to a Leu-68-->Gln (L68Q) mutation in the cystatin C protein sequence. The concentration of cystatin C in cerebrospinal fluid (CSF) of HCCAA patients is markedly diminished and cultivated ...

abstract       background and objectives: diabetes induced oxidative stress plays an important role in pathological damage to the heart and liver by increased production of extracellular matrix. it is thought that the use of medicinal plants, particularly portulaca oleracea. l and regular exercise are effective. the aim of this study was to evaluate the effects of portulaca oleracea. l consumpt...

Cystatins are reversible, competitive inhibitors of cysteine proteinases. Their inhibitory profiles, as well as their affinities for target enzymes, vary with different cysteine proteinases. Human cystatin C and salivary cystatin SN are 120- and 121-amino-acid (a.a.) proteins, respectively, and both contain 2 disulfide bonds. In this study, we examined the structure/function relationship of cys...