Por otra parte, hay evidencia que la DMAE y la aterosclerosis comparten algunos factores de riesgo, incluyendo el tabaquismo y la HTA. Algunos investigadores consideran, además, que la inflamación crónica de los vasos sanguíneos puede contribuir al desarrollo de la DMAE.
Según publica la revista "Archives of Ophthalmology", los investigadores de Boston analizaron muestras de sangre de 43 ingresados en la clínica ocular, de los cuales 25 padecían DMAE. Los resultados mostraron que los pacientes con DMAE tenían más probabilidades de presentar niveles más altos de anticuerpos de C. pneumoniae que los que no sufrían dicha patología ocular. Después de clasificar los pacientes por edad y por hábitos tabáquicos, la asociación entre DMAE y C. pneumoniae continuó.
En cambio, los pacientes de DMAE a menudo no tenían anticuerpos contra otras dos bacterias, que buscaron los investigadores en las muestras de sangre. Concretamente, contra C. trachomatis y E. coli.
Los autores consideran que la C. pneumoniae puede incrementar el riesgo de empeorar la DMAE o por infección directa de los tejidos o a causa de la producción de sustancias que originan la inflamación de los vasos.
Webs Relacionadas
Massachusetts Eye and Ear Infirmary
http://www.meei.harvard.edu/
Archives of Ophthalmology
http://archopht.ama-assn.org/
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