2015, Número 6
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Gac Med Mex 2015; 151 (6)
Susceptibilidad de generar drepanocitos en muestras de pacientes heterocigotos para hemoglobina S (rasgo falciforme) que padecen diabetes mellitus tipo 2
Díaz-Piedra P, Cervantes-Villagrana AR, Ramos-Jiménez R, Presno-Bernal JM, Cervantes-Villagrana RD
Idioma: Español
Referencias bibliográficas: 38
Paginas: 757-763
Archivo PDF: 105.47 Kb.
RESUMEN
La hemoglobina S (HbS) es una proteína anormal que produce cambios morfológicos en los eritrocitos en condiciones de
bajo oxígeno. En México se reporta hasta un 13.7% de la población con la mutación en un alelo considerada asintomática
(rasgo falciforme). El rasgo falciforme y diabetes
mellitus (DM) se presentan juntas en más de 1 millón de pacientes a nivel
mundial. Este binomio posiblemente potencia las alteraciones microvasculares en retinopatía y síndrome torácico agudo. El
objetivo de este trabajo fue evaluar la inducción de drepanocitos en muestras de pacientes diabéticos con rasgo falciforme
para identificar parámetros alterados de la serie roja. Para ello, obtuvimos muestras de pacientes diabéticos para determinar
hemoglobina glucosilada A1c (HbA1c) y HbS, además de biometría para analizar los datos eritrocitarios. Encontramos que
los pacientes diabéticos masculinos con mayor edad fueron susceptibles a generar drepanocitos y correlaciona con un
menor conteo de eritrocitos (RBC) y un incremento del volumen corpuscular medio (MCV). En muestras de pacientes diabéticas
femeninas no se presentaron diferencias. Nosotros concluimos que las muestras de pacientes con rasgo falciforme y diabetes
pueden generar drepanocitos en frotis; y en varones corresponden a individuos con mayor edad, un menor RBC y un mayor
MCV como parámetros de susceptibilidad.
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