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Relación causal entre las cataratas y las enfermedades gastrointestinales: un estudio de aleatorización mendeliana de

Yanchun Li¹, Qing Min Pan¹, MengYa Wang²

¹Department of Ophthalmology, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong, People's Republic of China.

Translational vision science & technology

|August 20, 2025

Resumen

La enfermedad de reflujo gastroesofágico y la enfermedad celíaca aumentan causalmente el riesgo de cataratas. Este estudio destaca los posibles vínculos biológicos e informa sobre el cribado específico para la prevención de la catarata.

Área de la Ciencia:

Oftalmología y Genética
Gastroenterología y Epidemiología

Sus antecedentes:

Las cataratas son una de las principales causas de ceguera en todo el mundo.
Las asociaciones anteriores entre cataratas y enfermedades gastrointestinales carecen de causalidad establecida.
Las afecciones sistémicas están cada vez más relacionadas con el desarrollo de cataratas.

Objetivo del estudio:

Investigar la relación causal entre las cataratas y 23 enfermedades gastrointestinales utilizando la aleatorización mendeliana (AM).
Explorar las posibles funciones mediadoras de los metabolitos plasmáticos en la vía de la ERGE-catarata.

Principales métodos:

Se utilizaron conjuntos de datos del estudio de asociación de todo el genoma (GWAS) para cataratas y 23 enfermedades gastrointestinales en poblaciones europeas.
Se utilizó la aleatorización mendeliana multivariable (MR) para evaluar la causalidad y ajustar los factores de confusión relacionados con los lípidos.
Un análisis de resonancia magnética en dos pasos investigó el papel mediador de 1400 metabolitos plasmáticos.

Principales resultados:

La enfermedad de reflujo gastroesofágico (ERGE) y la enfermedad celíaca se asociaron causalmente con un mayor riesgo de cataratas.
La ERGE mostró un vínculo específico con la catarata senil; la enfermedad celíaca mostró vínculos sugerentes con la catarata senil, inducida por medicamentos y otros tipos de catarata.
El 1-linoleoyl-GPE (18:2) fue identificado como un potencial mediador en la vía GERD-catarata.

Conclusiones:

Este estudio establece vínculos causales entre enfermedades gastrointestinales específicas y cataratas.
Los hallazgos proporcionan nuevos conocimientos sobre los mecanismos biológicos que conectan estas condiciones.
Los resultados apoyan el cribado específico y la intervención temprana para las poblaciones en riesgo.

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