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Conexión seno-intestino: origen del ácido chenodeoxicólico en el fluido del quiste mamario
N B Javitt1, K Budai, D G Miller
1Division of Hepatic Diseases, New York University Medical Center, NY 10016.
Lancet (London, England)
|March 12, 1994
Resumen
Este estudio demuestra que los ácidos biliares del intestino entran rápidamente en el líquido del quiste mamario. Este hallazgo apoya una conexión directa seno-intestino que influye en el microambiente del tejido mamario.
Área de la Ciencia:
- Endocrinología Endocrinología.
- Gastroenterología y Gastroenterología.
- Oncología Oncología.
Sus antecedentes:
- El líquido del quiste mamario contiene ácidos biliares, lo que sugiere un posible vínculo entre el intestino y el tejido mamario.
- La fuente de estos ácidos biliares (circulación intestinal vs. circulación sistémica) no estaba clara anteriormente.
Objetivo del estudio:
- Para determinar si los ácidos biliares en el líquido del quiste mamario se originan en el intestino.
- Para investigar el intestino como la fuente de ácidos biliares en el líquido del quiste mamario, en lugar de los precursores de esteroides circulantes.
Principales métodos:
- Se administró ácido chenodeoxicólico marcado con deuterio por vía oral a dos pacientes.
- Se recogen muestras de líquido del quiste mamario y de suero para el análisis de las concentraciones de ácido biliar.
- Ácido chenodeoxicólico cuantificado, etiquetado y no etiquetado, tanto en líquido de quiste como en suero.
Principales resultados:
- El ácido chenodeoxicólico se detectó en el líquido del quiste mamario en concentraciones significativamente más altas que en el suero.
- El ácido chenodeoxicólico marcado con deuterio estaba presente en el líquido del quiste, lo que confirma el origen intestinal.
- Las concentraciones de ácido chenodeoxicólico etiquetado en el líquido del quiste representaron el 11-17% de las concentraciones séricas.
Conclusiones:
- Los ácidos biliares intestinales acceden rápidamente al líquido del quiste mamario.
- Esto apoya un eje seno-intestino directo que modula el microambiente del tejido mamario.
- Se necesita más investigación sobre los mecanismos de intercambio y los gradientes de concentración.
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