Volume 29, Issue 3 (Monthly_Jun 2018)
Studies in Medical Sciences 2018, 29(3): 208-216 |
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Mashhad Branch, Islamic Azad University, Mashhad, Iran , neamati.ali@gmail.com
Abstract: (19262 Views)
Background & Aims: Angiogenesis is a key event during tumor growth. Since tumor cells require more oxygen and glucose than normal cells and due to tumors quick growth, new blood vessels rapidly increase to meet the nutritional requirements. Hence, targeting and inhibiting the formation of new blood vessels can reduce the nutrition and access of tumor cells to oxygen, which also inhibits tumor growth.. In the present study, the effects of coated silver nanoparticles with Persicaria bistorta on chick embryo chorioallantoic membrane and its antioxidant properties have been investigated.
Materials & Methods: The fertilized Ross eggs were distributed randomly and equally into 6 groups. Two groups were considered as control and laboratory control (treated with solvent). In the second day of incubation, a window was created on the eggs, and then in the 8th day after incubation, samples were exposed with various doses (60, 120, 240, 480 µg/ml) of the Ag-NPs. On the 12th day, photographs were taken and the length and number of vessels were measured using Image J software. The length and weight of embryos were measured and compared. The data were analyzed by SPSS software and one way ANOVA at the significance level of p <0.05.
Results: Based on the results, the silver nanoparticles at a concentration of 60 μg / ml reduced the length and number of blood vessels significantly (P<0.001) compared with the control group. The results of the study on the effect of nanoparticles on the weight of the embryos did not significantly change compared with the control but, the height of the embryos showed a significant decrease in the treated groups at a concentration of 240 μg / ml nanoparticles (P<0.01).
Conclusion: Accordingly, the use of silver nanoparticles can be considered as a potential treatment against pathological angiogenesis and solid tumors targeting blood vessels.
Materials & Methods: The fertilized Ross eggs were distributed randomly and equally into 6 groups. Two groups were considered as control and laboratory control (treated with solvent). In the second day of incubation, a window was created on the eggs, and then in the 8th day after incubation, samples were exposed with various doses (60, 120, 240, 480 µg/ml) of the Ag-NPs. On the 12th day, photographs were taken and the length and number of vessels were measured using Image J software. The length and weight of embryos were measured and compared. The data were analyzed by SPSS software and one way ANOVA at the significance level of p <0.05.
Results: Based on the results, the silver nanoparticles at a concentration of 60 μg / ml reduced the length and number of blood vessels significantly (P<0.001) compared with the control group. The results of the study on the effect of nanoparticles on the weight of the embryos did not significantly change compared with the control but, the height of the embryos showed a significant decrease in the treated groups at a concentration of 240 μg / ml nanoparticles (P<0.01).
Conclusion: Accordingly, the use of silver nanoparticles can be considered as a potential treatment against pathological angiogenesis and solid tumors targeting blood vessels.
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