ABSTRACT
As we known,serum creatinine(Scr),serum urea nitrogen(SUN) and creatinine clearance rate(Ccr),the most established marker of renal function,are affected by age,gender,muscle mass or nutritional status.Scr determines the glomerular filtration rate(GFR) improperly.Serum Cystatin C(sCys C) is freely filtered at the glomerulus and then resorbed and fully catabolised by proximal renal tubules,ma-king it an ideal marker of GFR.It is not affected by gender,muscle mass or malignancy,its production rate is usually constant and its plasma concentration therefore is dependent only on GFR.sCys C has been demonstrated to be more accurate and sensitive than Scr in the detection of early renal impairment and in specific populations may allow for early detection of renal disease.The aim is to discuss the advantages and limitations of sCys C and of established GFR methods.
ABSTRACT
Objective To evaluate the diagnostic value of urine Cystatin C(Cys C) for renal function impairment in neonates with hypoxic-ischemic encephalopathy(HIE).Methods The urine Cys C concentration was measured by enzyme linked immunosorbent assay(ELISA) in 47 cases of HIE newborns(25 cases were mild HIE and 22 cases were moderate-severe HIE) within 3 days after their birth.Twenty-three cases without perinatal asphyxia or other factors which could result in renal function impairment were selected as control group.Urine Cys C with urine retinal-bindingprotein(RBP),?2-microglobulin(?2-MG) and fractional sodium excretion(FENa%) were analyzed by kolmogorov-smirno in each group.Results Compared with control group,the concentration of urine Cys C,RBP and the levels of FENa% in HIE newborns were significantly elevated.The levels of urine Cys C in moderate-severe HIE newborns were significantly higher than those in mild HIE newborns(Pa
ABSTRACT
<p><b>OBJECTIVE</b>To explore the pathogenesis and the management of hypernatremia in burn patients.</p><p><b>METHODS</b>Twenty eight burn patients with hypernatremia were enrolled in the study and were divided into infection and non-infection groups. The pathogenesis, clinical features, biochemical indices in blood, the therapeutic results and the prognosis were compared between the two groups.</p><p><b>RESULTS</b>In non-infection group, the hypernatremia was mainly induced by improper fluid resuscitation and occurred on the 3.1 postburn day (PBD), while that in the infected group, on 7.2 PBD. The patients in non-infected group exhibited much more excited and the blood levels of glucose and urea nitrogen (BUN) were obviously decreased when compared with those in the infected group (P < 0.01). The survival rate in non-infected and infected group were 94.12% and 9.09%, respectively.</p><p><b>CONCLUSION</b>The mortality rate of the patients with hypernatremia could be lowered by means of taking optimal measures according to the different patterns of hypernatremia.</p>