Pathways for the synthesis of sorbitol from 13C-labeled hexoses, pentose, and glycerol in renal papillary tissue.
Magn Reson Med
; 9(3): 419-22, 1989 Mar.
Article
en En
| MEDLINE
| ID: mdl-2496284
ABSTRACT
Suspensions of rabbit renal papillary tissue were incubated with D-[6-13C]glucose, D-[1-13C]fructose, D-[1-13C]ribose, and [2-13C]glycerol. The perchloric acid extracts of the above incubations were investigated with 13C NMR spectroscopy. All 13C-labeled substrates give rise to 13C-labeled D-sorbitol. D-[6-13C]Glucose and D-[1-13C]fructose are converted directly into D-sorbitol via the aldose reductase and sorbitol dehydrogenase pathway, respectively, whereas D-[1-13C]ribose and [2-13C]glycerol give rise to labeling of the D-glyceraldehyde pool which on its turn causes a labeling of D-sorbitol. Label exchanges observed from incubations with glycerol and D-ribose indicate that the pentose shunt plays a role in this synthesis of D-sorbitol.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Ribosa
/
Sorbitol
/
Glucosa
/
Glicerol
/
Médula Renal
Límite:
Animals
Idioma:
En
Revista:
Magn Reson Med
Asunto de la revista:
DIAGNOSTICO POR IMAGEM
Año:
1989
Tipo del documento:
Article