Distribution of B-6 vitamers in human milk during a 24-h period after oral supplementation with different amounts of pyridoxine.
Am J Clin Nutr
; 51(6): 1062-6, 1990 Jun.
Article
in En
| MEDLINE
| ID: mdl-2349920
ABSTRACT
The relative distribution of B-6 vitamers, separated by reverse-phase liquid chromatography, was examined in human milk during a 24-h period after supplementation with 2.5 or 15 mg pyridoxine hydrochloride. Consistently, pyridoxal (PL) was the predominate vitamer and the most responsive to vitamin B-6 intake. During 3-8 h after supplement ingestion, PL, pyridoxal phosphate, and pyridoxamine concentrations were significantly higher than at other times examined. In the first two periods after supplementation, PL as a percentage of total vitamin B-6 was slightly but significantly higher in milk from the group supplemented with 15 mg than from the group supplemented with 2.5 mg. With the exception of PL, the distribution of B-6 vitamers, expressed as percent of total vitamin B-6, was similar for the two supplemented groups at all times examined. Percentage PL of total vitamin B-6 in milk was approximately 25% lower in unsupplemented than in supplemented women.
Search on Google
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Pyridoxine
/
Milk, Human
Limits:
Adult
/
Female
/
Humans
Language:
En
Journal:
Am J Clin Nutr
Year:
1990
Document type:
Article
Publication country:
EEUU
/
ESTADOS UNIDOS
/
ESTADOS UNIDOS DA AMERICA
/
EUA
/
UNITED STATES
/
UNITED STATES OF AMERICA
/
US
/
USA