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  • Title: Lecithin-cholesterol acyltransferase (LCAT) deficiency without mutations in the coding sequence: a case report and literature review.
    Author: Shoji K, Morita H, Ishigaki Y, Rivard CJ, Takayasu M, Nakayama K, Nakayama T, Inoue Y, Ayaki M, Yoshimura A.
    Journal: Clin Nephrol; 2011 Oct; 76(4):323-8. PubMed ID: 21955868.
    Abstract:
    Familial lecithin-cholesterol acyltransferase (LCAT) deficiency (FLD) is a rare genetic disease characterized by corneal opacities, normocytic anemia, dyslipidemia, and proteinuria progressing to chronic renal failure. In all FLD cases, a mutation has been found in the coding sequence of the LCAT gene. FLD is clinically distinguished from an acquired form of LCAT deficiency by the presence of corneal opacities. Here we describe a 36-year-old woman presenting with clinical, pathological, and laboratory data compatible with FLD. Her mother and elder sister had corneal opacities. However, genetic analysis revealed there were no mutations in the LCAT coding sequences and no alterations in LCAT mRNA expression. Furthermore, we were unable to find any underlying conditions that may lead to LCAT deficiency. The present case therefore demonstrates that LCAT deficiency may be caused by factors other than mutations in the coding sequence and we suggest that a translational or posttranslational mechanism may be involved.
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