Does lysosomial acid lipase reduction play a role in adult non-alcoholic fatty liver disease?

Francesco Baratta, Daniele Pastori, Licia Polimeni, Giulia Tozzi, Francesco Violi, Francesco Angelico, Maria Del Ben

Research output: Contribution to journalArticlepeer-review

Abstract

Lysosomal Acid Lipase (LAL) is a key enzyme involved in lipid metabolism, responsible for hydrolysing the cholesteryl esters and triglycerides. Wolman Disease represents the early onset phenotype of LAL deficiency rapidly leading to death. Cholesterol Ester Storage Disease is a late onset phenotype that occurs with fatty liver, elevated aminotransferase levels, hepatomegaly and dyslipidaemia, the latter characterized by elevated LDL-C and low HDL-C. The natural history and the clinical manifestations of the LAL deficiency in adults are not well defined, and the diagnosis is often incidental. LAL deficiency has been suggested as an under-recognized cause of dyslipidaemia and fatty liver. Therefore, LAL activity may be reduced also in non-obese patients presenting non-alcoholic fatty liver disease (NAFLD), unexplained persistently elevated liver transaminases or with elevation in LDL cholesterol. In these patients, it could be indicated to test LAL activity. So far, very few studies have been performed to assess LAL activity in representative samples of normal subjects or patients with NAFLD. Moreover, no large study has been carried out in adult subjects with NAFLD or cryptogenic cirrhosis.

Original languageEnglish
Pages (from-to)28014-28021
Number of pages8
JournalInternational Journal of Molecular Sciences
Volume16
Issue number12
DOIs
Publication statusPublished - Nov 25 2015

Keywords

  • Cholesterol ester storage disease
  • Hypercholesterolemia
  • Lysosomial acid lipase
  • Non-alcoholic fatty liver disease
  • Wolman disease

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Spectroscopy
  • Inorganic Chemistry
  • Catalysis
  • Molecular Biology
  • Computer Science Applications

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