Haleh Sadat Tavakkol Afshari, Masoud Homayouni Tabrizi, Touran Ardalan,
Volume 22, Issue 4 (9-2019)
Abstract
Background and Aim Among nano-pharmaceutical materials, nanoemulsions are an important tool in the field of nanotechnology. They have been designed for clinical and therapeutic applications. Since the therapeutic efficacy of cancer is measured by the ability of the drug to reduce and eliminate tumors without damaging healthy tissues, nanoemulsions can be useful as a targeted drug carrier. Therefore, we are going to study the antioxidant and anticancer effects of nanoemulsions prepared using dill essential oil.
Methods and Materials Evaluate the antioxidant properties, we used DPPH (1,1-diphenyl-2-picrylhydrazyl) and ABTS (2,2'-azino-bis[3-ethylbenzothiazoline-6-sulphonic acid]) tests. We also applied MTT assay for the evaluation of induced cytotoxicity in liver hepatocellular carcinoma cells and normal human umbilical vein endothelial cells.
Ethical Considerations The Research Ethics Committee of Islamic Azad University (Mashhad Branch) approved this study (Code: IR.IAU.MSHD.REC.1398.027).
Results Nanoemulsions prepared using dill essential oil has a good potential for inhibiting DPPH (IC50=500 μg/mL) and ABTS (IC50=420 μg/mL) radicals. Nanoemulsions also caused a little toxicity to both cell lines. Nanoemulsions reduced cell viability in a dose-dependent manner and the cytotoxicity induced to cancer cells was higher than normal cells.
Conclusion The present study indicates that nanoemulsions prepared by dill essential oil will have the potential to become a therapeutic strategy for diseases caused by oxidative stress.
Haleh Sadat Tavakkol Afshari, Masoud Homayouni Tabrizi, Touran Ardalan,
Volume 24, Issue 1 (April & May 2021)
Abstract
Background and Aim: Angiogenesis is the process of forming new blood vessels from the old ones; it plays an important role in physiological conditions, such as growth, wound healing, and reproduction. This process also plays a vital role in pathological phenomena and the occurrence of various diseases, especially tumor growth and metastasis. The present study evaluated the anti-angiogenic effects of nanoemulsion synthesized from Anethum graveolens essential oil using the CAM method.
Methods & Materials: To investigate the anti-angiogenic effects on the second day of incubation, a window was opened on the eggs. Subsequently, on the eighth day, a gelatin sponge with nanoemulsion with different doses (12.5, 25, and 50 μg/mL) was inserted on the chorioallantoic membrane. On the 12th day of incubation, a research stereomicroscope was used to evaluate the rate of angiogenesis and imaging of the treated area. Vascular factors were examined by Image J software.
Ethical Considerations: This study was approved by the Research Ethics Committee of Mashhad Branch, Islamic Azad University (Code: IR.IAU.MSHD.REC.1398.027).
Results: The obtained results concerning the effect of nanoemulsion on the rate of angiogenesis in the CAM test indicated a decrease in the length and number of vessels of the chorioallantoic membrane in the treated samples, compared to the controls. Moreover, there was a reduction in the height and weight of treated fetuses, compared to the untreated fetuses (P<0.05).
Conclusion: The anti-angiogenic activity of nanoemulsion synthesized from Anethum graveolens essential oil indicated the possible use of this substance for diseases, like cancer, in which the formation of blood vessels is inhibited. Therefore, Anethum graveolens nanoemulsion can be suggested as an agent for further cancer studies.
