info:eu-repo/semantics/article
Análisis al microscopio electrónico de la mucosa nasal de pacientes ex-adictos a la cocaína
Análisis al microscopio electrónico de la mucosa nasal de pacientes ex-adictos a la cocaína
Autor
Moreira Carmona, Lisela
Guevara Arroyo, Ana V.
Arroyo Gutiérrez, Olga
Institución
Resumen
Normal and pathological human nasal mucous biopsies were used and obtained surgically. Pathological one were taken from cocaine adicted patients who had been using this drug during many years mainly by snorting via. From the clinical point of view all patients presented similar symptoms among which the most common were acute and chronic rhinitis, sneeze and bleeding. All cases include showed evident tissue desorganization that ultrastructurally present parcial or total lost of cillia as well as disruption between epithelia and basal lamina. Although, normal tissue was substituited by abundant fibrous tissue explaining why this tissue lost its normal function. All described alterations were analized by transmission electron microscope and scanning electron microscope. Se analizaron biopsias obtenidas quirúrgicamente de mucosa nasal humana normal y de pacientes que fueron adictos durante su adolescencia a la cocaína, quienes la emplearon durante varios años principalmente por inhalación. Desde el punto de vista clínico, estos pacientes presentaron síntomas comunes entre los que destacan rinitis aguda o crónica, estornudos y sangrado. Todos los casos incluidos presentaron una evidente desorganización tisular, que ultraestructuralmente se traduce en pérdida parcial o total del estrato ciliar, así como, la continuidad de este epitelio con la lámina basal en la que normalmente se asienta, observándose un desprendimiento o ruptura entre estos dos estratos. Además, ocurre una sustitución notable de tejido normal por abundante tejido fibroso, lo que explica la disfunción que se genera en el área.