Complexity of molecular genetics of dyslipidemia in a family highly susceptible to ischemic heart disease.

Abstract:

:In a Danish family highly susceptible to ischemic heart disease, hyperlipidemia did not simply cosegregate with a previously undescribed 10 bp deletion in the LDL receptor gene causing heterozygous familial hypercholesterolemia (FH). This mutation, designated as FH DK-4, deletes 10 nucleotides from exon 4 coding for the third cysteine-rich repeat of the ligand-binding domain. The resulting translational frameshift and stop codon corresponding to amino acid position 181 in the LDL receptor cDNA is predicted to result in a truncated LDL receptor protein. Several family members had hyperlipidemia and early onset of ischemic heart disease not due to the 10 bp deletion, and several family members had unexpectedly high serum lipoprotein(a) contributing to high concentrations of serum LDL cholesterol. The study illustrates important limitations and possibilities of molecular genetic diagnosis.

journal_name

Clin Genet

journal_title

Clinical genetics

authors

Jensen HK,Hansen PS,Jensen LG,Kristensen MJ,Klausen IC,Kjeldsen M,Lemming L,Bolund L,Gregersen N,Faergeman O

doi

10.1111/j.1399-0004.1995.tb04049.x

subject

Has Abstract

pub_date

1995-07-01 00:00:00

pages

23-8

issue

1

eissn

0009-9163

issn

1399-0004

journal_volume

48

pub_type

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