نتایج جستجو برای: bilirubin
تعداد نتایج: 11370 فیلتر نتایج به سال:
OBJECTIVES To compare available nomograms in the literature defining trends in bilirubin levels across populations with different risk factor profiles and to study a mathematical bilirubin kinetics model describing the natural course of jaundice and the bilirubin rate of rise needed to cross percentile curves. DATA SOURCES We searched PubMed for publications between March 1999 and March 2009 ...
BACKGROUND After living donor liver transplantation (LDLT), rising serum bilirubin levels commonly indicate insufficient numbers of hepatocytes are available to metabolize bilirubin into biliverdin. Recovery of bilirubin levels is an important marker of hepatocyte repopulation after LDLT. Cytochrome P450 (CYP) 2A6 in humans (or cyp2a4 in rodents) can function as "bilirubin oxidase." Functional ...
Total bilirubin is determined here with a multipoint calibration approach and with use of Standard Reference Material No. 916 bilirubin from the National Bureau of Standards. The bilirubin calibration solutions prepared in solutions of Cohn Fraction V human albumin were stable for at least one year when stored at -80 degrees C. Studies for direct bilirubin analysis show that the serum sample sh...
F Eghbalian [1] , MD AR Monsef [2] , MD Received: 9 June, 2009 Accepted: 30 Aug 2009 Abstract: Background & Aims: This study was performed to compare the effects and complications of single and double surface photo therapies. Materials & Methods: This study was done on 80 neonates. Infants in group one and two received single and double surface photo therapies, respectively. Bilirubin le...
1. Intravenous doses of bilirubin (3.4 mumol/kg) were given to normal subjects and patients with Gilbert's syndrome. Both groups displayed an identical initial disappearance of a substantial proportion of the bilirubin but, late in time, the Gilbert's patients exhibited reduced clearance with a sustained elevation of the plasma bilirubin and no reflux into the plasma space of conjugated bilirub...
1. The initial distiibution volumes of [3H]bilirubin in six adult subjects were equivalent to those of "I-labelled albumin following simultaneous intravenous injection of both compounds. However, the initial rate of loss of [3H]bilirubin from plasma was seven to thirty times faster than that of 1311-labelled albumin. 2. In vitro uptake of [3H]bilirubin by Gunn rat liver slices occurred at a rat...
These studies demonstrate that the MH(1)C(1) strain of rat hepatoma cells has the ability to take up and conjugate bilirubin and then excrete the conjugated pigment into the culture medium. On incubation with unconjugated bilirubin, the average rate of appearance of conjugated bilirubin in the medium was 4.4 +/- 0.20 microg per mg of cell protein per hour (mean +/- SE). The products formed from...
Hyperbilirubinemia, caused by the accumulation of unconjugated bilirubin, is one of the most common clinical diagnoses in both premature and term newborns. Owing to the fact that bilirubin is metabolized solely through glucuronidation by UDP-glucuronosyltransferase (UGT) 1A1, it is now known that immaturity of UGT1A1, in combination with the overproduction of bilirubin during the developmental ...
Bilirubin pigments were studied in the bile of 20 normal adults, 25 patients with Gilbert's syndrome, 9 children with Crigler-Najjar disease, and 6 patients with hemolysis, to determine how a deficiency of hepatic bilirubin UDP-glucuronosyltransferase would affect the end products of bilirubin biotransformation. In the bile from patients with Gilbert's syndrome, a striking increase was found in...
BACKGROUND Urine-bilirubin measurement is common in urinalysis dipsticks, which are known to yield a high rate of false positive results. We evaluated the usefulness of this test after multiple physicians in our system reported that they do not act on positive dipstick urine bilirubin findings. METHODS We queried past records to determine how many samples with positive urine bilirubin results...
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