Low rate of production of apolipoproteins B100 and AI in 2 patients with Anderson disease (chylomicron retention disease)
| Autor: | Thomas Aparicio, Dominique Bligny, Hassane Nazih, Thierry Magot, Yassine Zair, Marie Elisabeth Samson-Bouma, Jacques Schmitz, Maud Chétiveaux, Khadija Ouguerram, Fatima Kasbi-Chadli, Laurence P. Aggerbeck, Michel Krempf |
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| Rok vydání: | 2012 |
| Předmět: |
Adult
Male medicine.medical_specialty Malabsorption Apolipoprotein B Down-Regulation Disease Lipoproteins VLDL Models Biological Hypobetalipoproteinemias Malabsorption Syndromes Leucine Internal medicine medicine Humans Genetic Predisposition to Disease Triglycerides Monomeric GTP-Binding Proteins Carbon Isotopes biology Apolipoprotein A-I Vascular disease Chemistry SAR1B medicine.disease Hypocholesterolemia Kinetics Endocrinology Cholesterol Phenotype Apolipoprotein B-100 Mutation biology.protein lipids (amino acids peptides and proteins) Female Cardiology and Cardiovascular Medicine Biomarkers Chylomicron Chylomicron retention disease |
| Zdroj: | Arteriosclerosis, thrombosis, and vascular biology. 32(6) |
| ISSN: | 1524-4636 |
| Popis: | Objective— Anderson disease is a rare inherited lipid malabsorption syndrome associated with hypocholesterolemia and linked to SAR1B mutations. The aim of this article was to analyze the mechanisms responsible for the low plasma apolipoprotein Apo-B100 and Apo-AI in 2 patients with Anderson disease. Methods and Results— A primed constant infusion of 13 C-leucine was administered for 14 hours to determine the kinetics of lipoproteins. In the 2 patients, total cholesterol (77 and 85 mg/dL versus 155±32 mg/dL), triglycerides (36 and 59 versus 82±24 mg/dL), Apo-B100 (48 and 43 versus 71±5 mg/dL), and Apo-AI (47 and 62 versus 130±7 mg/dL) were lower compared with 6 healthy individuals. Very-low-density lipoprotein-B100 production rate of the patients was lower (4.08 and 5.52 mg/kg/day versus 12.96±2.88 mg/kg/day) as was the fractional catabolic rate (5.04 and 4.32 day −1 versus 12.24±3.84 day −1 ). No difference was observed in intermediate-density lipoprotein-B100 and LDL-B100 kinetic data. The production rate of high-density lipoprotein Apo-AI was lower in the patients (7.92 and 8.64 versus 11.96±1.92 mg/kg/day) and the fractional catabolic rate was higher (0.38 and 0.29 versus 0.22±0.01 day −1 ). Conclusion— The low plasma Apo-B100 and Apo-AI concentrations in the patients with Anderson disease were mainly related to low rates of production. |
| Databáze: | OpenAIRE |
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