Análisis del tratamiento durante 7 y 10 días con el extracto enriquecido en proantocianidinas deLigaria cuneifolia sobre la fluidez sanguínea
; Ronco, Maria Teresa
; Wagner, Marcelo Luis ; Carnovale, Cristina Ester
; Luquita, Alejandra Nora Otros responsables
Fecha
08/2023
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Universidad Nacional de Rosario. Facultad de Ciencias Médicas
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FCM Cinetífica
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2796-7719
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La infusión de Ligaria cuneifolia o “muérdago criollo” es utilizada en medicina popular para dar mayor fluidez a la sangre disminuyendo el exceso de Colesterol plasmático. Del extracto crudo se purificó Proantocianidina (PLc). Nuestro objetivo fue analizar los factores celulares y plasmáticos que afectan la fluidez sanguínea a bajas velocidades de flujo, estimada por la cinética de la agregación eritrocitaria en ratas hiperlipémicas durante 7 días y 10 días de tratamiento con PLc. Fueron utilizadas ratas Wistar machos de 70 días de edad (n = 24), alimentadas con dieta rica en grasa. Las ratas controles recibieron por vía intraperitoneal solución fisiológica cada 24 horas y las tratadas PLc 3mg /100g peso corporal, durante 7 días y 10 días (n= 6 cada grupo). El día 8 y 11 respectivamente, los animales fueron anestesiados obteniéndose sangre por punción cardíaca. Se determinaron en plasma: colesterol (total, HDL y LDL) y triglicéridos por métodos enzimáticos; en sangre: se evaluó la cinética de la agregación eritrocitaria por método óptico, obteniéndose 2 parámetros: tamaño de los agregados y velocidad de la agregación eritrocitaria. Factores celulares: Se calculó el índice morfológico según clasificación de Bessis e índice de rigidez por método de filtración. El tratamiento con PLc mostró un efecto hipolipemiante en ratas tratadas durante 7 y 10 días, con una disminución significativa de la agregación eritrocitaria mejorando la fluidez sanguínea, sin cambios en los factores celulares que afectan la capacidad de agregarse de los eritrocitos. De acuerdo con estos resultados podemos concluir que se ha logrado obtener una fracción de Lc, enriquecida en Proantocianidinas que es capaz de disminuir el colesterol y triglicéridos plasmático favoreciendo la fluidez sanguínea a bajas velocidades de flujo, disminuyendo la velocidad de agregación eritrocitaria.
In folk medicine, the infusions of Ligaria cuneifolia (Lc) are used to increase blood fluidity and decrease excess plasma cholesterol (Cho). Our objective was to analyze the cellular and plasmatic factors that affect blood fluidity at low flow speeds, estimated by erythrocyteaggregationkinetics on hyperlipemic rats during 7 and 10 days of treatment with the extract enriched in Proantocianidins from Lc (PLc). Adult male Wistar rats (aged 70 days, n=24) were fed with a high-fat diet. Then, control rats were administered intraperitoneally each 24hr with either physiological solution or PLc 3mg /100g body weight during 7 and 10 days (n=6 each group). In day 8 and 11, respectively, they were anesthetized to obtain blood samples by cardiac puncture. In serum, we determined cholesterol (total, HDL and LDL) and triglycerides by using enzymatic methods. In blood, erythrocyte aggregation kinetics was evaluated using an optic method obtaining two parameters that estimate: size of aggregates (T) and speed of aggregation (V). Cellular factors: it was calculated the distinction of shapes by optic microscopy and Morphological Index adjudicating an index according to classification of Bessis. Stiffness Index was determined with a filtration method. Treatment with PLc shows a lipid-lowering effect on treated rats during 7 and 10 days, with a significant decrease in the erythrocyte aggregation improving blood fluidity, without producing changes in cellular factors. We have obtained a fraction enriched in Proantocianidins that decreases cholesterol and triglycerides favoring blood fluidity at low flow rates and decrease erythrocyte aggregation speed.
In folk medicine, the infusions of Ligaria cuneifolia (Lc) are used to increase blood fluidity and decrease excess plasma cholesterol (Cho). Our objective was to analyze the cellular and plasmatic factors that affect blood fluidity at low flow speeds, estimated by erythrocyteaggregationkinetics on hyperlipemic rats during 7 and 10 days of treatment with the extract enriched in Proantocianidins from Lc (PLc). Adult male Wistar rats (aged 70 days, n=24) were fed with a high-fat diet. Then, control rats were administered intraperitoneally each 24hr with either physiological solution or PLc 3mg /100g body weight during 7 and 10 days (n=6 each group). In day 8 and 11, respectively, they were anesthetized to obtain blood samples by cardiac puncture. In serum, we determined cholesterol (total, HDL and LDL) and triglycerides by using enzymatic methods. In blood, erythrocyte aggregation kinetics was evaluated using an optic method obtaining two parameters that estimate: size of aggregates (T) and speed of aggregation (V). Cellular factors: it was calculated the distinction of shapes by optic microscopy and Morphological Index adjudicating an index according to classification of Bessis. Stiffness Index was determined with a filtration method. Treatment with PLc shows a lipid-lowering effect on treated rats during 7 and 10 days, with a significant decrease in the erythrocyte aggregation improving blood fluidity, without producing changes in cellular factors. We have obtained a fraction enriched in Proantocianidins that decreases cholesterol and triglycerides favoring blood fluidity at low flow rates and decrease erythrocyte aggregation speed.
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