|
|
||||||||
Correspondence to:
M. Krempf
Heterozygous familial hypercholesterolemia (FH) is associated with a moderate decrease of plasma apoA-I and HDL-cholesterol levels. The aim of the study was to test the hypothesis that these abnormalities were related to an increase of HDL-apoA-I fractional catabolic rate (FCR). We performed a 14-h infusion of [5,5,5-2H3]leucine in seven control subjects and seven heterozygous FH patients (plasma total cholesterol 422 ± 27 vs. 186 ± 42 mg/dL, P < 0.001, respectively). Plasma apoA-I concentration was not changed in FH compared to controls (respectively 115 ± 18 vs. 122 ± 15 mg/dL, NS), and HDL-cholesterol level was decreased (37 ± 7 vs. 46 ± 19 mg/dL, NS). Kinetics of HDL metabolism were modeled as a single compartment as no differences were observed between HDL2 and HDL3 subclasses. Both mean apoA-I FCR and absolute production rate (APR) were increased in FH (respectively, 0.36 ± 0.14 vs. 0.22 ± 0.05 pool/d, P < 0.05, and 18.0 ± 7.7 and 11.2 ± 2.3 mg/kg/d, P < 0.05). Higher HDL-triglyceride and HDL-apoE levels were observed in patients with heterozygous FH. (Respectively 19 ± 8 vs. 8 ± 3 mg/dL, P < 0.05, and 5.3 ± 0.8 vs. 3.7 ± 0.9 mg/dL, P < 0.05).
We conclude that the catabolism of HDL-apoA-I is increased in heterozygous FH patients. However, plasma apoA-I concentration was maintained because of an increased HDL-apoA-I production rate.Frénais, R., K. Ouguerram, C. Maugeais, J. S. Marchini, P. Benlian, J. M. Bard, T. Magot, and M. Krempf. Apolipoprotein A-I kinetics in heterozygous familial hypercholesterolemia: a stable isotope study. J. Lipid Res. 1999. 40: 1506;1511.
Supplementary key words:
heterozygous familial hypercholesterolemia, stable isotope, kinetic analysis, apo AI, HDL
Copyright © 1999 by Lipid Research, Inc.
Original Article
Apolipoprotein A-I kinetics in heterozygous familial hypercholesterolemia: a stable isotope study
R. Frénaisa,
K. Ouguerrama,
C. Maugeaisa,
J. S. Marchinib,
P. Benlianc,
J. M. Barda,d,
T. Magota, and
M. Krempfa,e
a Centre de Recherche en Nutrition Humaine, Groupe Métabolisme, Hôtel Dieu, Nantes, France
b Division of Clinical Nutrition, School of Medicine of Ribeirão Preto, Brazil
c Service de Biochimie, Biologie Cellulaire et Biologie Moléculaire, Hôpital Saint Antoine, Paris, France
d Faculté de Pharmacie, Laboratoire de Biochimie, Hôtel Dieu, Nantes, France
e Clinique d'Endocrinologie, Maladies Métaboliques et Nutrition, Hôtel Dieu, Nantes, France
![]()
CiteULike
Complore
Connotea
Del.icio.us
Digg
Reddit
Technorati What's this?
This article has been cited by other articles:
![]() |
R. Ramakrishnan Studying apolipoprotein turnover with stable isotope tracers: correct analysis is by modeling enrichments J. Lipid Res., December 1, 2006; 47(12): 2738 - 2753. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Kontush and M. J. Chapman Functionally Defective High-Density Lipoprotein: A New Therapeutic Target at the Crossroads of Dyslipidemia, Inflammation, and Atherosclerosis Pharmacol. Rev., September 1, 2006; 58(3): 342 - 374. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. D. Mooradian, M. J. Haas, and N. C. W. Wong The Effect of Select Nutrients on Serum High-Density Lipoprotein Cholesterol and Apolipoprotein A-I Levels Endocr. Rev., February 1, 2006; 27(1): 2 - 16. [Abstract] [Full Text] [PDF] |
||||
![]() |
A. Wiegman, J. Rodenburg, S. de Jongh, J. C. Defesche, H. D. Bakker, J. J.P. Kastelein, and E. J.G. Sijbrands Family History and Cardiovascular Risk in Familial Hypercholesterolemia: Data in More Than 1000 Children Circulation, March 25, 2003; 107(11): 1473 - 1478. [Abstract] [Full Text] [PDF] |
||||
![]() |
S. Canizales-Quinteros, C. A. Aguilar-Salinas, E. Reyes-Rodriguez, L. Riba, M. Rodriguez-Torres, S. Ramirez-Jimenez, A. Huertas-Vazquez, V. Fragoso-Ontiveros, A. Zentella-Dehesa, J. L. Ventura-Gallegos, et al. Locus on Chromosome 6p Linked to Elevated HDL Cholesterol Serum Levels and to Protection Against Premature Atherosclerosis in a Kindred With Familial Hypercholesterolemia Circ. Res., March 21, 2003; 92(5): 569 - 576. [Abstract] [Full Text] [PDF] |
||||
![]() |
G. Miltiadous, M. A. Cariolou, and M. Elisaf HDL Cholesterol Levels in Patients with Molecularly Defined Familial Hypercholesterolemia Ann. Clin. Lab. Sci., January 1, 2002; 32(1): 50 - 54. [Abstract] [Full Text] [PDF] |
||||
| HOME | HELP | FEEDBACK | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
| All ASBMB Journals | Journal of Biological Chemistry |
| Molecular and Cellular Proteomics | ASBMB Today |