Variable phenotypic expression of homozygous familial hypobetalipoproteinaemia due to novel APOB gene mutations


Journal article


E. Di Leo, L. Magnolo, M. Bertolotti, M. Bourbon, S. Carmo Pereira, M. Pirisi, S. Calandra, P. Tarugi
Clinical genetics, vol. 74(3), 2008 Sep, pp. 267-273


Semantic Scholar DOI PubMed
Cite

Cite

APA   Click to copy
Leo, E. D., Magnolo, L., Bertolotti, M., Bourbon, M., Pereira, S. C., Pirisi, M., … Tarugi, P. (2008). Variable phenotypic expression of homozygous familial hypobetalipoproteinaemia due to novel APOB gene mutations. Clinical Genetics, 74(3), 267–273. https://doi.org/10.1111/j.1399-0004.2008.01023.x


Chicago/Turabian   Click to copy
Leo, E. Di, L. Magnolo, M. Bertolotti, M. Bourbon, S. Carmo Pereira, M. Pirisi, S. Calandra, and P. Tarugi. “Variable Phenotypic Expression of Homozygous Familial Hypobetalipoproteinaemia Due to Novel APOB Gene Mutations.” Clinical genetics 74, no. 3 (September 2008): 267–273.


MLA   Click to copy
Leo, E. Di, et al. “Variable Phenotypic Expression of Homozygous Familial Hypobetalipoproteinaemia Due to Novel APOB Gene Mutations.” Clinical Genetics, vol. 74, no. 3, Sept. 2008, pp. 267–73, doi:10.1111/j.1399-0004.2008.01023.x.


BibTeX   Click to copy

@article{e2008a,
  title = {Variable phenotypic expression of homozygous familial hypobetalipoproteinaemia due to novel APOB gene mutations},
  year = {2008},
  month = sep,
  issue = {3},
  journal = {Clinical genetics},
  pages = {267-273},
  volume = {74},
  doi = {10.1111/j.1399-0004.2008.01023.x},
  author = {Leo, E. Di and Magnolo, L. and Bertolotti, M. and Bourbon, M. and Pereira, S. Carmo and Pirisi, M. and Calandra, S. and Tarugi, P.},
  month_numeric = {9}
}

Abstract

Homozygous familial hypobetalipoproteinaemia (Ho‐FHBL) is a rare co‐dominant disorder characterized by extremely low levels of low‐density lipoprotein cholesterol (LDL‐C) and apolipoprotein B (apoB). Most patients with Ho‐FHBL have mutations in APOB gene resulting in truncated apoBs. Some patients are asymptomatic, while others have fatty liver, intestinal fat malabsorption and neurological dysfunctions. We investigated three adult subjects with severe hypobetalipoproteinaemia and a family history of FHBL. Proband FHBL‐47 had liver cirrhosis with hepatocarcinoma and a renal carcinoma but no clinical manifestations related to FHBL. He was a compound heterozygote for a 7‐bp deletion in exon 21 and a base insertion in exon 26 resulting in truncated apoBs (apoB‐22.46/apoB‐66.51). Proband FHBL‐53, with severe hepatic steatosis and fibrosis, had a nonsense mutation in exon 19 resulting in a truncated apoB (apoB‐20.61) and a rare nucleotide substitution in intron 14 (c.2068‐4T>A). The latter was also present in her daughter, found to have low plasma LDL‐C and apoB. Proband FHBL‐82 had chronic diarrhoea and steatorrhoea. She was found to be homozygous for a nonsense mutation in exon 24 resulting in a truncated apoB (apoB‐26.65). In adult subjects, the presence of chronic liver disease and chronic diarrhoea, when associated with severe hypobetalipoproteinaemia, may lead to the diagnosis of Ho‐FHBL.


Share



Follow this website


You need to create an Owlstown account to follow this website.


Sign up

Already an Owlstown member?

Log in