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Hypocholesterolaemic effects of lovastatin in familial defective apolipoprotein B-100

D R Illingworth1, F Vakar, R W Mahley

  • 1Department of Medicine, Oregon Health Sciences University, Portland 97201-3098.

Lancet (London, England)
|March 7, 1992
PubMed

Insights

Familial defective apolipoprotein B-100 (FDB) is a genetic condition causing high cholesterol. Lovastatin treatment effectively lowered LDL cholesterol in FDB patients, suggesting statins are a viable treatment option.

Area of Science:

  • Genetics
  • Cardiovascular Medicine
  • Pharmacology

Background:

  • Familial defective apolipoprotein B-100 (FDB) is an autosomal dominant disorder.
  • It is characterized by hypercholesterolemia due to a specific amino acid substitution in apoprotein B-100.
  • This substitution results in low-density lipoprotein (LDL) particles with impaired binding to LDL receptors.

Purpose of the Study:

  • To evaluate the efficacy of lovastatin in treating hypercholesterolemia in patients with FDB.
  • To determine the dose-dependent response to lovastatin in this patient population.

Main Methods:

  • A study involving 12 hypercholesterolemic patients from 10 unrelated families with FDB.
  • Patients were treated with either 20 mg or 40 mg of lovastatin daily.
  • Plasma LDL cholesterol levels were measured before and after treatment.

Main Results:

  • Treatment with 20 mg of lovastatin daily resulted in a 21.5% decrease in LDL cholesterol.
  • A higher dose of 40 mg daily led to a more significant reduction of 32.1% in LDL cholesterol.
  • Both dosages showed a positive impact on hypercholesterolemia in FDB patients.

Conclusions:

  • Hypercholesterolemia associated with FDB can be effectively managed with statin therapy.
  • Lovastatin demonstrates a dose-dependent efficacy in reducing LDL cholesterol levels in FDB patients.
  • These findings support the use of statins as a therapeutic strategy for FDB.

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