ABSTRACT
Disturbances of the microcirculation and abnormal hemorheological properties are important factors that play an important role in disseminated intravascular coagulation (DIC) and result in organ dysfunction or failure. In the present study, we established an animal model of DIC using intravenous Dextran 500 in rats, and used exogenous normal lymph corresponding to 1/15 of whole blood volume for injection through the left jugular vein. We found that normal lymph could improve the blood pressure and survival time of rats with DIC. The results regarding the mesenteric microcirculation showed that the abnormality of the diameter of mesenteric microvessels and micro-blood flow speed in the DIC+lymph group was significantly less than in the DIC+saline group. Whole blood viscosity, relative viscosity, plasma viscosity, hematocrit (Hct), erythrocyte sedimentation rate (ESR), and electrophoresis time of erythrocytes were significantly increased in the DIC+saline group compared to the control group. The electrophoretic length and migration of erythrocytes from the DIC+saline and DIC+lymph groups were significantly slower than the control group. Blood relative viscosity, Hct, ESR, and electrophoretic time of erythrocytes were significantly increased in the DIC+lymph group compared to the control group. Whole blood viscosity, relative viscosity and reduced viscosity were significantly lower in the DIC+lymph group than in the DIC+saline group, and erythrocyte deformability index was also significantly higher than in the DIC+saline and control groups. These results suggest that exogenous normal lymph could markedly improve the acute microcirculation disturbance and the abnormal hemorheological properties in rats with DIC induced by Dextran 500.
Subject(s)
Animals , Disseminated Intravascular Coagulation/physiopathology , Erythrocyte Deformability/physiology , Mesentery/blood supply , Microcirculation/physiology , Blood Viscosity/physiology , Dextrans , Disease Models, AnimalABSTRACT
Objective To probe the effects of Danlongxingnaopian on hemorrheology and bulbar conjunctiva microcirculation(BCM)in dog and to explore its effects of activating the blood and eliminating the stagnant.Methods The blood stagnant syndrome model was reproduced by injecting dextran 500 into the vein.The BCM and the hemorrheology properties were detected and compared.Results Compared with the normal group,indexes of the model group such as whole blood relative viscosity,whole blood reducing viscosity and plasm viscosity improved,erythrocyte sedimentation rate and erythrocyte sedimentation rate K increased,erythrocyte aggregation index and erythrocyte transmutation index increased,BCM's morphological mark and flow habitus mark increased(P
ABSTRACT
Objective To investigate the effects of DLXNP on hemorrheology and bulbar conjunctiva microcirculation (BCM) in rabbit and to explore its effects of activating the blood and eliminating the stagnant. Methods The blood stagnant syndrome model was reproduced by injecting dextran 500 into the marginal ear vein. The BCM and the hemorrheology properties were detected and compared. Results Compared with the normal group, the model group's indexes of whole blood relative and whole blood reducing viscosity improved (P