Correspondence between plasma mevalonic acid levels and deuterium uptake in measuring human cholesterol synthesis.
Eur J Clin Invest
; 22(9): 609-13, 1992 Sep.
Article
en En
| MEDLINE
| ID: mdl-1459177
To assess the validity of two techniques capable of identifying immediate changes in human cholesterol production, plasma mevalonic acid levels and the rate of uptake of deuterium into plasma free cholesterol were compared in 5 healthy individuals over 48 h. The free-living subjects self-selected three meals per day prior to and during study. At t = 0, deuterium oxide was administered orally. Blood samples were collected before and every 4 h after dosing. Total cholesterol and mevalonic acid levels were determined in plasma at each timepoint. Deuterium enrichment changes in plasma free cholesterol, relative to plasma water content, were used to calculate free cholesterol fractional synthetic rates (FSR) at each timepoint. Total plasma cholesterol levels remained constant, whereas significant circadian rhythmicity was observed in both plasma mevalonic acid and deuterium uptake methods, with nadir and peak formation rates indicated at 14.00 to 16.00 h and about midnight, respectively. It is suggested that plasma mevalonic acid levels and free cholesterol deuterium uptake rate techniques are both suitable techniques for short-term measurement of human cholesterol synthesis.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Colesterol
/
Deuterio
/
Ácido Mevalónico
Tipo de estudio:
Prognostic_studies
Límite:
Adult
/
Humans
/
Male
Idioma:
En
Revista:
Eur J Clin Invest
Año:
1992
Tipo del documento:
Article
País de afiliación:
Canadá
Pais de publicación:
Reino Unido