Atazanavir (ATV) causes an elevation of unconjugated hyperbilirubinemia (HBR) as a result of UDP glucuronyltransferase (UGT) 1A1 inhibition. Zinc sulfate (ZnSO4) reduces unconjugated hyperbilirubinemia in individuals with Gilbert's syndrome. We assessed the changes in total, conjugated, and unconjugated bilirubin and the effect on ATV pharmacokinetics (PK) after single and 14-day dosing of ZnSO...

Gilbert’s syndrome is a genetic disorder characterised by non-hemolytic unconjugated hyperbilirubinemia. It caused mutations in the UGT1A1 gene which codes for enzyme uridine diphosphate glucoronosyl transferase-1, conjugates bilirubin excretion. Affected individuals are usually asymptomatic apart from mild jaundice and investigations reveal isolated indirect This may be exacerbated face of env...

Inherited disorders of bilirubin metabolism involve four autosomal recessive syndromes: Gilbert, CriglerNajjar, Dubin-Johnson and Rotor, among which the first two are characterized by unconjugated and the second two by conjugated hyperbilirubinemia. Gilbert syndrome occurs in 2%-10% of general population, while others are rare. Except for Crigler-Najjar syndrome, hereditary hyperbilirubinemias ...

BACKGROUND & AIMS We tested the hypothesis that oral administration of bile salts, which are known to increase the biliary excretion of unconjugated bilirubin (UCB), decreases unconjugated hyperbilirubinemia in the Gunn rat model. METHODS Adult Gunn rats were fed a standard diet or the same diet supplemented with 0.5 weight % ursodeoxycholic acid (UDCA) or cholic acid (CA) for 1 or 6 weeks. U...

Obesity and pregnancy both place the liver under metabolic stress, but interactions between obstetric obesity and bilirubin metabolism have not been studied. We determined associations between obesity, maternal/neonatal bilirubin levels, and uridine 5'diphosphate-glucuronosyltransferase 1A1 (UGT1A1) enzyme that eliminates bilirubin. Adult livers were analyzed for UGT1A1 expression, activity, an...

Jaundice in an adult patient can be caused by a wide variety of benign or life-threatening disorders. Organizing the differential diagnosis by prehepatic, intrahepatic, and posthepatic causes may help make the work-up more manageable. Prehepatic causes of jaundice include hemolysis and hematoma resorption, which lead to elevated levels of unconjugated (indirect) bilirubin. Intrahepatic disorder...

AIM AND SCOPE We conducted this study to estimate the incidence of hyperbilirubinemia in a small neonatal care unit in Catania, Italy, and to determine the underlying causes, which would be of value in identifying and implementing strategies to prevent morbidity from this condition. BACKGROUND Management of hyperbilirubinemia remains a challenge for neonatal medicine because of the risk for s...

We report on a Filipino neonate with early onset and prolonged hyperbilirubinemia who was delivered by a vacuum extraction due to a prolonged labor. Subsequent studies revealed adrenal hemorrhage and glucose-6-phosphate dehydrogenase (G6PD) deficiency. It is likely that asphyxia and resultant hypoxia underlie the occurrence of adrenal hemorrhage and the clinical manifestation of G6PD deficiency...

Severe neonatal unconjugated hyperbilirubinemia, with the risk of bilirubin encephalopathy or kernicterus in severe, untreated cases, occurs when bilirubin production exceeds the body's ability to eliminate it. The causes of neonatal hyperbilirubinemia are multifactorial and comprise increased hemolysis on the one hand, and diminished bilirubin conjugation on the other. In recent years, many of...