نتایج جستجو برای: cystatin c
تعداد نتایج: 1057234 فیلتر نتایج به سال:
BACKGROUND Serum cystatin C, a cysteine protease inhibitor, has been suggested as a new marker of glomerular filtration rate (GFR). This study explored the possibility of replacing the creatinine clearance (CrCl) estimation of GFR with cystatin C in early detection of renal impairment in cancer patients on chemotherapy. METHODS Serum creatinine and cystatin C concentrations as well as 24-h Cr...
To elucidate the molecular requirements for cancer cell internalization of the extracellular cysteine protease inhibitor cystatin C, 12 variants of the protein were produced and used for uptake experiments in MCF-7 cells. Variants with alterations in the cysteine cathepsin binding region ((Δ1-10)-, K5A-, R8G-, (R8G,L9G,V10G)-, (R8G,L9G,V10G,W106G)-, and W106G-cystatin C) were internalized to a ...
BACKGROUND Epidemiological studies show that high circulating cystatin C is associated with risk of cardiovascular disease (CVD), independent of creatinine-based renal function measurements. It is unclear whether this relationship is causal, arises from residual confounding, and/or is a consequence of reverse causation. OBJECTIVES The aim of this study was to use Mendelian randomization to in...
OBJECTIVE To investigate the expression of cystatin C gene and its effect on the proliferation, apoptosis and invasiveness of EC9706 cells in esophageal carcinoma. METHODS 56 cases of esophageal carcinoma were randomly collected from our hospital. Samples of human esophageal carcinomas and matched normal esophageal mucosal epithelium were selected by resection operation from these patients. E...
;25% false negatives. By contrast, plasma cystatin C better reflected GFR with the strongest correlation with Cr-labeled EDTA clearance and no false negatives. In a group of adult transplant recipients at steady-state renal function (average time since transplantation, 6 years), cystatin C was shown to have a better diagnostic value than serum creatinine for a GFR cutoff set at 60 mL/min (3 ). ...
Cystatin C is a cysteine protease inhibitor that is produced by nearly all human cells. The serum level of cystatin C is a stronger predictor of the renal outcome and the risk of cardiovascular events than the creatinine level. The resistive index (RI) on renal Doppler ultrasonography is a good indicator of vascular resistance as well as the renal outcomes in patients with chronic kidney diseas...
Cystatin C Leu68Gln variant is known to induce amyloid deposition in cerebral arterioles, resulting in Icelandic type cerebral amyloid angiopathy (CAA). Wild-type cystatin C is also observed in solitary CAA involving amyloid beta protein (Abeta), and accelerates the amyloidogenicity of Abeta in vitro. In neurological inflammatory diseases and leptomeningeal metastasis, low cystatin C levels are...
Deferasirox (Exjade) is a once-daily, oral iron chelator approved for the treatment of transfusional iron overload. This study was conducted to analyze changes in cystatin C concentration, an endogenous marker of glomerular filtration rate (GFR), in patients with thalassemia receiving daily deferasirox therapy over a period of at least 9 months. One hundred and fifty beta-thalassemia patients w...
There has been considerable recent interest in the potential use of serum cystatin C as a diagnostic tool. Here we examined the hypothesis that the cystatin C level in the pleural effusion can differ from the corresponding serum level. We evacuated pleural effusion fluids from 47 patients by thoracentesis. Cystatin C, beta(2)-microglobulin, inorganic phosphate, creatinine and total protein were...
BACKGROUND Cystatin C, a marker of kidney injury, is freely filtered in the glomeruli and reabsorbed by the proximal tubules. Megalin and cubilin are endocytic receptors essential for reabsorption of most filtered proteins. This study examines the role of these receptors for the uptake and excretion of cystatin C and explores the effect of renal ischemia/reperfusion injury on renal cystatin C u...
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