Effect of dietary protein levels on urea utilization in Papua New Guinea highlanders.
Jpn J Physiol
; 36(4): 761-71, 1986.
Article
en En
| MEDLINE
| ID: mdl-3784150
ABSTRACT
Ability to utilize urea nitrogen for body protein synthesis was examined with Papua New Guinea (PNG) highlanders and Japanese (JPN). Eight male PNG highlanders and 8 male JPN were fed on a low protein diet containing 0.55 g protein/kg or an adequate protein diet containing 1.34 g protein/kg for 1 or 2 weeks. The fate of 15N was measured after oral administration of 15N-labelled urea. There was no difference in 15N incorporation into serum protein between PNG highlanders and JPN receiving low protein diets. On the other hand, on the adequate protein diet, 15N incorporation in PNG highlanders was similar to that on the low protein diet, in contrast to that in JPN which was hardly detected in the adequate protein diet. When PNG highlanders take more protein than protein in their usual diet, they effectively incorporate ingested protein into their body protein and urea nitrogen is utilized for synthesis of body protein.
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Bases de datos:
MEDLINE
Asunto principal:
Urea
/
Proteínas en la Dieta
Límite:
Adolescent
/
Adult
/
Humans
/
Male
País/Región como asunto:
Asia
Idioma:
En
Revista:
Jpn J Physiol
Año:
1986
Tipo del documento:
Article