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Showing 4 results for Homayouni Tabrizi
Evaluation of Anti-angiogenic Activity of Silver Nanoparticle Synthesis by Rubina tinctorum L (Ru-AgNPs) Using Chicken Chorioallantoic Membrane (CAM) Assay
Sara Ghandehari, Masoud Homayouni Tabrizi, Pouran Ardalan,
Volume 21, Issue 1 (4-2018)
Abstract
Abstract
Background: Angiogenesis occurs in physiologic (wound healing) and pathological conditions and plays an important role in tumor growth, progression and metastasis. Therefore, the inhibition of angiogenesis can be an important approach to treat cancer diseases. In recent years, the use of nanoparticles has been developed to control cancer cells and prevent tumor growth. Various studies have shown the role of nanoparticles in reducing angiogenesis and inhibition of cancer cells. So, in this study, the anti-angiogenic effect of silver nanoparticle synthesis by Rubina tinctorum L (Ru-AgNPs) on Chicken Chorioallantoic Membrane (CAM) was investigated.
Materials and Methods: In an experimental study, 60 eggs were randomly divided into 6 groups including control, laboratory control and 4 treatment groups (10 eggs/group). On the second day of incubation, a window was created on the eggs. On the 8th day, the chorioallantoic membrane of samples was treated with different concentrations of nanoparticles and on the 12th day, the image was taken from all samples. Finally, the number and length of vessels on the chorioallantoic membrane and following that weight and length of the embryo from crown to squattiest were measured. Quantitative data were analyzed using LSD-test.
Results: The results showed that the Ru-AgNPs significantly reduced the length and number of blood vessels in the treated groups compared to the control group. Also, the comparison of length and weight of embryos in treated samples with control group showed that the Ru-AgNPs had an inhibitory effect on the length of the embryos, but the weight did not differ significantly in the treatment with the control group.
Conclusion: Considering the inhibitory effect of the Ru-AgNPs on the angiogenesis of the chorioallantoic membrane, with further studies, this compound can be used to control and inhibit pathological angiogenesis in many diseases such as cancers.
 

Investigation of the Antioxidant Activity and Toxicity of Schiff Bases Complex N, Nʹ Di Pirodexil 1, 4 Butadiamin on Breast Cancer Cell Line (MCF7)
Zohre Sadat Tabatabayi, Masoud Homayouni Tabrizi, Ali Neamati,
Volume 21, Issue 7 (2-2019)
Abstract
Background and Aim: Increasing metabolism and production of free radicals in the body are among the factors causing increased oxidative stress, weakened the antioxidant system, and some diseases, including cancer. The purpose of this study was to investigate the antioxidant activity and toxic effect of the Schiff base manganese II compound N, Nʹ di pirodexil 1, 4 butadiamin.
Materials and Methods: The antioxidant capacity of the Schiff base manganese II complex N, Nʹ di pirodexil 1, 4 butadiamin at the concentrations of 62.5, 125, 250, and 500 µg/ml was Investigated using the 1.1-diphenyl-2-picricyl-hydrazyl (DPPH) technique. We also evaluated the toxic effect of the mentioned Schiff bases complex at concentrations of 0, 62.5, 125, 250 and 500 µg/ml by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) at 24, 48 and 72 hours on a breast cancer cell line (MCF7 [Michigan Cancer Foundation-7]).
Ethical Considerations: In this study, research ethical principles were considered.
Findings: The antioxidant capacity of Schiff bases manganese II complex N, N di pirodexil 1, 4 butadiamin at the concentration of 500 µg/ml was 38.83%. Further, considering the toxic effect of the Schiff bases on the MCF7 cell line, the results showed that IC50 at 24, 48 and 72 hours was about 124, 245 and 470 µg/ml, respectively.
Conclusion: The results obtained from the review of the antioxidant capacity of the Schiff base manganese II complex N, Nʹ di pirodexil 1, 4 butadiamin compared to (BHA) butylated hydroxyanisole suggest that the compound can be effective in free radical inhibition.

Evaluation of Antioxidant and Anticancer Effects of Nanoemulsions Prepared Using Dill Essential Oil
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.

Investigating the Anti-angiogenic Effects of Nanoemulsion Synthesized From Plant Anethum Graveolens L Essential Oil
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.
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