High plasma branched-chain amino acids:aromatic amino acids ratio in children on the ketogenic diet: a mechanism in controlling epilepsy.
BACKGROUND
The authors proposed that ketogenic diets will produce an increase in the ratio of branched chain amino acids (BCAAs) and aromatic amino acids (BCAAs) in plasma of children who are on the diets.


METHODS
A sample of plasma amino acids sample before initiation of fasting and on day 10 of the dietary treatment was obtained in patients with refractory epilepsy who were newly admitted for initiation of ketogenic diet. Plasma amino acids were determined by high performance liquid chromatography equipment.


RESULTS
There are 20 patients with refractory epilepsy participating in this study. Outcomes of ketogenic diet therapy were satisfactory. Nineteen cases out of 20 cases had a significantly higher ratio of plasma BCAAs:ARAAs during ketogenic diets than before the diet (P < 0.001).


CONCLUSIONS
The ketogenic diets produced an increased ratio of plasma BCAAs:ARAAs. Whether the increased ratio of plasma BCAAs:ARAAs plays an important role in controlling epilepsy is yet to be elucidated.
Jirapinyo
Pipop
P
Department of Pediatrics, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand. pipopj@asiaaccess.net.th
Kankirawatana
Pongkiat
P
Densupsoontorn
Narumon
N
Thamonsiri
Nuchnoi
N
Wongarn
Renu
R
D000293:Adolescent; D024322:Amino Acids, Aromatic / Q000097:blood*; D000597:Amino Acids, Branched-Chain / Q000097:blood*; D002648:Child; D002675:Child, Preschool; D004827:Epilepsy / Q000097:blood* / Q000178:diet therapy*; D005260:Female; D006801:Humans; D007223:Infant; D007659:Ketones / Q000008:administration & dosage*; D008297:Male
D024322:Amino Acids, Aromatic; D000597:Amino Acids, Branched-Chain; D007659:Ketones