To the Editor: Inulin clearance (CIn) is the usual gold standard for evaluating glomerular filtration rate (GFR), but technical difficulties and patient inconvenience prevent its widespread use (1 ). The most commonly used marker for GFR is serum creatinine, but muscle wasting and tubular secretion may lead to overestimation of GFR (2, 3). Serum concentrations of the low-molecular weight protei...

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 r...

Serum creatinine is commonly used as a marker of renal function, but increases in serum creatininemight not represent changes in glomerular filtration rate (GFR). INCB039110 (2-(3-(4-(7H-pyrrolo[2,3-day]pyrimidin4-yl)-1H-pyrazol-1-yl)-1-(1-(3-fluoro-2-(trifluoromethyl)isonicotinoyl) piperidin-4-yl)azetidin-3-yl)acetonitrile) is an inhibitor of the Janus kinases (JAKs) with selectivity for JAK1....

Recommendations for laboratory diagnosis and monitoring of chronic kidney disease (CKD) state the use of both serum creatinine and cystatin-C in various clinical situations. The relationship of these markers to estimated glomerular filtration rate (eGFR) is found to be different in different populations. In India the routine reporting of eGFR is yet to commence. Meanwhile, the utility of these ...

Neutrophil gelatinase-associated lipocalin (NGAL) is a small 25-kDa protein released from kidney tubular cells after harmful stimuli. It represents one of the most promising future biomarkers in the diagnostic field of acute kidney injury (AKI), as the increase in NGAL levels is a good predictor of a brief-term onset of AKI, notably anticipating the resulting increase in serum creatinine. Howev...

Concentration of serum cystatine C primarly dependes on the glomerular filtration rate (GFR), and cystatin C concentration in serum can be used as an endogenous marker of kidney function. Use of cystatin C in the assesment of GFR in elderely, childern and pre dialysis patients could be usful. The aim of the study was to evaluate the use of cystatin C as a renal marker of the glomerular filtrati...

BACKGROUND/AIMS The commonly used kidney function tests have limitations, especially in thyroid dysfunction. Therefore, we studied the most commonly used kidney function tests in patients with hypo- and hyperthyroidism and after reaching euthyroidism. METHODS Prospective case series in 16 patients with thyroid dysfunction. Serum creatinine, 24-hour creatinine clearance, calculated glomerular ...

Assessment of glomerular filtration rate (GFR) is essential for clinical practice. GFR is difficult to measure [measured GFR (mGFR)]; instead it is estimated [estimated GFR (eGFR)] by use of the serum concentration of endogenous filtration markers. However, all endogenous filtration markers are affected by factors other than GFR (non-GFR determinants), including generation, renal tubular reabso...