| Abstrakt: |
Introduction: Angiogenesis is the biological process of sprouting new vessels from existing vessels in the tissue. The main factors in the molecular guidance of this process are vascular endothelial growth factor (VEGF) and fibroblast growth factor (FGF). Given the significance of antibiotics in reducing angiogenesis through the inhibition of collagenase, phospholipase A2, and several matrix metalloproteinases, the objective of this study was to examine the impact of the Doxycycline antibiotic on alterations in the gene expression of VEGF and FGF within the angiogenesis pathway of the chorioallantoic membrane (CAM) in chick embryos. Materials & Methods: In this research, 50 Ross fertilized eggs were randomly divided into 5 groups, including the control group, laboratory control, and 3 experimental groups. On the eighth day of incubation, the laboratory control group was treated with normal saline, and the experimental groups were treated with doses of 50, 100, and 250 µmol/ml of the Doxycycline antibiotic. On the twelfth day, photographs were taken of the samples. The number and length of blood vessels and then the weight and length of embryos were measured. A real-time PCR technique was used to investigate the expression changes of VEGF and FGF genes on the CAM membrane. The statistical tests included one-way ANOVA, independent t-test, and post hoc tukey, which were analyzed by SPSS V.20 at a level of significance less than 0.05. Results: The number of vessels and the length of vessels in the treatment groups showed a significant decrease compared to the control group (P<0.05). Also, the expression level of VEGF and FGF genes in the treatment groups was significantly lower than the control group (P<0.05). Conclusion: The doxycycline antibiotic can significantly reduce the expression level of VEGF and FGF genes and the angiogenic process of the chorioallantoic membrane of chick embryos. [ABSTRACT FROM AUTHOR] |
