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Genetic Analysis of Hereditary Transthyretin Ala97Ser Related Amyloidosis
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Familial hyperamylasaemia

P M Cuckow1, A Y Foo, A Jamal

  • 1Department of Paediatric Surgery, Leeds General Infirmary, UK.

Gut
|May 1, 1997
PubMed
Summary
This summary is machine-generated.

Familial hyperamylasemia, characterized by elevated serum amylase in asymptomatic relatives across three generations, is reported here. This condition appears to follow an autosomal dominant inheritance pattern.

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Area of Science:

  • Biochemistry
  • Genetics
  • Gastroenterology

Background:

  • Recurrent abdominal pain in children necessitates thorough investigation.
  • Elevated serum amylase levels can indicate pancreatic issues but require differential diagnosis.

Observation:

  • A six-year-old boy presented with recurrent abdominal pain and persistently high serum amylase.
  • Endoscopic retrograde cholangiopancreatography was normal, and macroamylasemia was ruled out.
  • Asymptomatic family members across three generations also exhibited elevated serum amylase.

Findings:

  • Serum lipase levels were normal, and clearance studies showed no renal tubular defect.
  • This study identifies the first documented instance of apparently familial hyperamylasemia.
  • The pattern of inheritance suggests an autosomal dominant mode.

Implications:

  • Familial hyperamylasemia is a distinct clinical entity that does not appear to be linked to pancreatic disease.
  • Understanding the genetic basis of hyperamylasemia is crucial for accurate diagnosis and family counseling.
  • This finding broadens the spectrum of amylase level variations and their hereditary patterns.