Marcadores del remodelamiento óseo en saliva y su correlación con los niveles sanguíneos en ratas Bone remodeling markers in saliva as compared to serum in rats
| Autor: | Pellegrini Gretel, Macarena Gonzáles Cháves, Julia Somoza, Silvia Friedman, Susana N. Zeni |
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| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | Medicina (Buenos Aires), Vol 66, Iss 3, Pp 245-248 (2006) |
| ISSN: | 1669-9106 0025-7680 |
| Popis: | Si bien es conocida la utilidad de marcadores óseos en suero u orina para determinar cambios en el remodelamiento óseo, la misma no ha sido totalmente estudiada en saliva. Este trabajo evalúa la correlación entre dos marcadores del recambio óseo: la fosfatasa alcalina ósea (isoforma ósea, FAO) y el telopéptido C-terminal del colágeno tipo I (CTX), medidos simultáneamente en suero y saliva de ratas Wistar (250 a 300 g), SHAM (n=12) y ovariectomizadas (OVX) (n=12). Luego de una semana de la cirugía se extrajo sangre en ayunas y saliva total estimulada donde se evaluó CTX (ELISA, RatLabs, Osteometer Bio Tech, Dinamarca) y FAO (Wiener, colorimetría). En el suero, tanto CTX (ng/ml) como FAO (UI/l) en ratas OVX fueron significativamente mayores que en ratas SHAM (15.3±4.0 vs. 21.8±6.4, pBone markers are useful tools to measure bone remodeling; currently they are assessed in serum and urinary samples; however there is little information concerning their measurement in saliva. The present experimental study evaluates the possibility to measure collagen type I carboxiterminal telopeptide (CTX) and bone alkaline phosphatase (b-AP) in saliva, its correlation with serum samples in normal conditions and in the increase of the bone remodeling due to estrogen deficiency. Twenty four normal adult Wistar rats (300±20 g) [12 SHAM and 12 rats after 1 week of bilateral ovariectomy (OVX)] were studied. Fasting serum and total saliva after stimulation with pilocarpine were collected. In both samples were measured: CTX (ng/ml) by ELISA (RatLabs, Osteometer Bio Tech, Denmark) and b-AP (IU/L) (Wiener, colorimetrically). Both CTX and b-AL in serum samples were significantly higher in OVX than in SHAM rats (15.3±4.0 vs. 21.8±6.4, p |
| Databáze: | OpenAIRE |
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