Study on the changes in the distribution and chemical states of the hepatic intra-and extra-cellular sodium ion in the rats with severe burns at early stage / 中华烧伤杂志
Chinese Journal of Burns
;
(6): 326-328, 2005.
Artículo
en Chino
| WPRIM
| ID: wpr-312552
ABSTRACT
<p><b>OBJECTIVE</b>To investigate the changes in the distribution and chemical states of the hepatic intra- and extra-cellular sodium ion in the rats with severe burns, so as to provide guidance for fluid resuscitation at early postburn stage.</p><p><b>METHODS</b>Nineteen adult male Sprague-Dawley (SD) rats were employed in the study and were randomly divided into control (n = 12) and burn (n = 7) groups. The changes in the longitudinal (T1) and transverse (T2) relaxation times of hepatic intra-cellular and extra-cellular sodium in the two groups were studied with 23Na NMR spectroscopy and a shift reagent.</p><p><b>RESULTS</b>After infusion of the shift reagent,the extra-cellular sodium content in rat liver decreased by 17%, with obvious increase in fast T2 component (P < 0.01), indicating an increase in the fraction of Na+ binding sites in the extra-cellular space. The characteristics of relaxation of intra-cellular sodium remained unchanged despite a 57% increment in intra-cellular sodium content.</p><p><b>CONCLUSION</b>The deficiency of sodium as a permeable molecule might be related to the postburn movement of hypertonic sodium from extra-cellular to intra-cellular space. The results indicated that it is reasonable to administer high concentration of sodium in fluid resuscitation during the first 24 postburn hours.</p>
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Sodio
/
Quemaduras
/
Cationes
/
Ratas Sprague-Dawley
/
Hepatocitos
/
Espacio Extracelular
/
Metabolismo
Límite:
Animales
Idioma:
Chino
Revista:
Chinese Journal of Burns
Año:
2005
Tipo del documento:
Artículo
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