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Causes of hyperbilirubinemia mainly arise from the liver. These include haemolytic anaemias, enzymatic disorders, liver damage and gallstones. Hyperbilirubinemia itself is often benign. Only in extreme cases does kernicterus, a type of brain injury, occur. Therapy for adult hyperbilirubinemia targets the underlying diseases but patients with ...
But scientific studies found no clear pattern of adverse symptoms related to the elevated levels of unconjugated bilirubin in adults. However, other substances glucuronidized by the affected enzymes in those with Gilbert's syndrome could theoretically, at their toxic levels, cause these symptoms.
Rotor syndrome (also known as Rotor type hyperbilirubinemia) [2] is a rare cause of mixed direct (conjugated) and indirect (unconjugated) hyperbilirubinemia, relatively benign, autosomal recessive [3] bilirubin disorder characterized by non-hemolytic jaundice due to the chronic elevation of predominantly conjugated bilirubin.
Kernicterus is a bilirubin-induced brain dysfunction. [1] The term was coined in 1904 by Christian Georg Schmorl.Bilirubin is a naturally occurring substance in the body of humans and many other animals, but it is neurotoxic when its concentration in the blood is too high, a condition known as hyperbilirubinemia.
Rotor syndrome is clinically similar to Dubin-Johnson syndrome but can cause a mixed hyperbilirubinemia, elevating both unconjugated and conjugated bilirubin levels in the blood. Rotor syndrome is caused by a deficiency in bilirubin transportation of hepatic uptake and storage. Both Dubin-Johnson and Rotor syndrome do not cause severe ...
Jaundice, also known as icterus, is a yellowish or greenish pigmentation of the skin and sclera due to high bilirubin levels. [3] [6] Jaundice in adults is typically a sign indicating the presence of underlying diseases involving abnormal heme metabolism, liver dysfunction, or biliary-tract obstruction. [7]
Dubin–Johnson syndrome is a benign condition and no treatment is required. However, it is important to recognize the condition so as not to confuse it with other hepatobiliary disorders associated with conjugated hyperbilirubinemia that require treatment or have a different prognosis.
Moreover, the unconjugated hyperbilirubinemia arises in case the components of liver transfer the indirect bilirubin into bilirubin glucuronide in the rate slower than they should be. [3] This condition is associated with either decreased uptake of bilirubin into hepatocytes (Rotor syndrome [34]) or defective intracellular protein binding. [3]