Effect of a high-fat ketogenic diet on plasma levels of lipids, lipoproteins, and apolipoproteins in children.
JAMA
; 290(7): 912-20, 2003 Aug 20.
Article
em En
| MEDLINE
| ID: mdl-12928468
ABSTRACT
CONTEXT Little prospective long-term information is available on the effect of a ketogenic diet on plasma lipoproteins in children with difficult-to-control seizures. OBJECTIVE:
To determine the effect in children with intractable seizures of a high-fat ketogenic diet on plasma levels of the major apolipoprotein B (apoB)-containing lipoproteins, low-density lipoprotein (LDL) and very LDL (VLDL); and the major apolipoprotein A-I (apoA-I)-containing lipoprotein, high-density lipoprotein (HDL). DESIGN, SETTING, AND PATIENTS A 6-month prospective cohort study of 141 children (mean [SD] age, 5.2 [3.8] years for 70 boys and 6.1 [4.4] years for 71 girls) with difficult-to-treat seizures who were hospitalized for initiation of a high-fat ketogenic diet and followed up as outpatients. This cohort constituted a subgroup of the 371 patients accepted into the ketogenic diet program between 1994 and 2001. A subset of the cohort was also studied after 12 (n = 59) and 24 (n = 27) months. INTERVENTION A ketogenic diet consisting of a high ratio of fat to carbohydrate and protein combined (41 [n = 102], 3.51 [n = 7], or 31 [n = 32]). After diet initiation, the calories and ratio were adjusted to maintain ideal body weight for height and maximal urinary ketosis for seizure control. MAIN OUTCOMEMEASURES:
Differences at baseline and 6-month follow-up for levels of total, VLDL, LDL, HDL, and non-HDL cholesterol; triglycerides; total apoB; and apoA-I.RESULTS:
At 6 months, the high-fat ketogenic diet significantly increased the mean plasma levels of total (58 mg/dL [1.50 mmol/L]), LDL (50 mg/dL [1.30 mmol/L]), VLDL (8 mg/dL [0.21 mmol/L]), and non-HDL cholesterol (63 mg/dL [1.63 mmol/L]) (P<.001 vs baseline for each); triglycerides (58 mg/dL [0.66 mmol/L]) (P<.001); and total apoB (49 mg/dL) (P<.001). Mean HDL cholesterol decreased significantly (P<.001), although apoA-I increased (4 mg/dL) (P =.23). Significant but less marked changes persisted in children observed after 12 and 24 months.CONCLUSIONS:
A high-fat ketogenic diet produced significant increases in the atherogenic apoB-containing lipoproteins and a decrease in the antiatherogenic HDL cholesterol. Further studies are necessary to determine if such a diet adversely affects endothelial vascular function and promotes inflammation and formation of atherosclerotic lesions.
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Base de dados:
MEDLINE
Assunto principal:
Convulsões
/
Dieta
/
Lipídeos
Tipo de estudo:
Etiology_studies
/
Observational_studies
Limite:
Adolescent
/
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
Idioma:
En
Ano de publicação:
2003
Tipo de documento:
Article