فهرست مطالب khadije shahrokhabadi

Considering the effectiveness of polymorphisms in the occurrence of respiratory diseases, it seems that these genetic variations in viral and microbial receptors can be effective in the occurrence and progression of the disease. The present study aimed to  assess the relationship between the C-159T polymorphism in the CD14 gene promoter and the severity of the disease in  Covid-19 patients during 2020-2021.

The subjects were randomly selected from subjects referred for polymerase chain reaction (PCR) and studied in five groups: healthy, outpatient, non-critically ill hospitalized, critically ill hospitalized, and deceased patients. The peripheral blood (3ml) was obtained from all patients and DNA was extracted. Thereafter,  C-159T polymorphism in the CD14 gene promoter was determined by PCR-restriction fragment length polymorphism (RFLP) method. The genotype frequency was determined in terms of heterozygosity, homozygosity, and mutant regarding polymorphism. The data were analyzed in SPSS software (version 21) (P<0.05).

The results pointed out that the most common C-159T polymorphism was the CT polymorphism, which was observed in 107 (51.0%) subjects and was significantly higher than other polymorphisms in all PCR- and PCR+ participants. This difference was not significant for deceased people.

According to the results pointing out that the C-159T polymorphism is effective in causing the disease, as well as the significant relationship between the TT and CT genotypes with the coronavirus, the probability of developing the disease is higher in T allele carriers. Therefore, it is suggested that CT polymorphism in CD14 gene promoter is considered an important prognosis in coronavirus disease.

Pancreatic cancer is one of the deadliest cancers related to the digestive system in the world. Due to the increasing resistance of cancer cells to chemotherapy and its side effects, there is a need for drugs with fewer side effects and natural origin. In this study, the effect of harmine combined with fluorouracil on apoptosis induction in pancreatic cancer cells (AsPC-1) and the expression of apoptotic genes was investigated.

In this experimental study, MTT assay was used to study the cytotoxic effects. Annexin V/propidium iodide test and DAPI staining method were used to determine the type of cell death. The expression of apoptotic genes (P53, Bax, Caspase-3, and Caspase-9) was measured by real-time PCR. The data were analyzed using one-way ANOVA in SPSS software, version 16. The significance level was set at 0.05.

The results of MTT assay showed that the use of harmine at 20 μg/mL concentration combined with 10 μg/mL fluorouracil significantly reduced the growth (IC50) of AsPC-1 cells. The results of DAPI staining and annexin V/propidium iodide test showed the induction of apoptosis in treated samples. In addition, the results of real-time PCR showed that the expression of BAX, P53, Caspase-3 and Caspase-9 genes increased in the treated groups compared to the control group.

The combined use of harmine and fluorouracil can induce apoptosis in pancreatic cancer cells due to high cytotoxicity and reduce the concentration of chemotherapy drugs. Therefore, this method can be used along with other treatment methods for pancreatic cancer.

Ovarian cancer has the highest mortality rate among all genital malignancies. It is the sixth cancer in the western world that has no symptoms at all in the early stages. One of the genes that is highly expressed and inhibited in cancer is the Cox gene. The aim of this study was to evaluate ovarian cancer in early stages, evaluation of Cox gene expression and SGPT and SGOT enzymes, and also investigated the treatment of different concentrations of nettle extract. In this experimental study, hydroalcoholic extract of nettle leaf, stem and root was prepared and doses of 75 and 250 mg/kg body weight were prepared. DMBA was used to induce ovarian cancer in mice. Blood samples were taken after 28 days to measure enzyme levels. Ovarian tissue was then separated, weighed and morphologically compared with other organs. RNA extraction, nanodrape, electrophoresis, cDNA synthesis, and gene expression analysis were performed. The results were evaluated by SPSS software. The results of SGOT enzyme assay showed that R250, S75 and T2 treatments had significant changes. The normal expression level of Cox gene was in the laboratory control (1.63) and the lowest gene expression was related to S75 treatment on day 28 and the highest expression was related to R75 on the same day. Cox gene expression changes and the SGOT enzyme can be used as a marker for early detection of ovarian cancer.

Cancer is the leading cause of death after cardiovascular diseases, and accidents. Nowadays, researchers are increasing their efforts to use treatments with minimal side effects and make an attempt to use traditional medicine and herbal remedies. AnbarNesara is a seemingly worthless substance found in traditional medicine used in the treatment of many diseases. The aim of the present study was to evaluate the cytotoxic effects of the smoke from the burning of AnbarNesara on liver cancer cells and to investigate the genes expression changes of P53 and CYP2E1.

In the current experimental study, first Anbarnsara was collected from Dargaz region in spring and then the smoke from its fuel was collected in cold propyleneglycol. The amount of smoke in the solvent was calculated. Then, liver cancer cell line (HEPG2) and normal cell line were cultured. Cytotoxicity tests and morphological studies were performed and IC50 value was calculated. RNA extraction, cDNA synthesis, and Real Time PCR were performed to evaluate the expression of P53 and CYP2E1 genes. The results were analyzed using t-test and ANOVA at a significance level of P <0.05.

The results of morphological studies and toxicity test indicated that smoke from AnbarNesara fuel at a concentration of 58.5 mg/ml increases cancer cell mortality (IC50=48.79) compared to that in the control group (P <0.05). In the study of gene expression, while the concentration of 117 mg increased the expression of CYP2E1 gene, the P53 gene increased at the concentration of 58.5 (P <0.05).

The smoke from burning Anbarnsara seems to have a lethal effect on liver cancer cells. Duration and concentration are significant in this effectiveness.

The role of tumor suppressor genes in the development of prostate cancer is well known. Decrease or lack of expression of these genes causes the tumor to spread through metastasis to other tissues of the body. Since nettle has anti-cancer effects, the aim of this study was to investigate the effects of hydroalcoholic extract of nettle stem and root on the expression changes of PTEN, MAGI-2 and SMAD-2 genes in mouse prostate induced tumor.

In this experimental study, hydroalcoholic extract of nettle was prepared by Soxhlet apparatus. The mice were injected subcutaneously for 28 days after injection of DMBA carcinoma with doses of 75 and 250 mg/kg, respectively. Also, the control group received no drug and the sham group received only the extract. The expression changes of the target genes were analyzed by Real Time PCR and the results were analyzed statistically.

The results showed that PTEN gene expression was increased in treatment with 250 root extract compared to day 14 turmeric. Expression of MAGI-2 gene was increased in treatment with root extract of 75 dose on day 28 compared to day 28 tumor. Evaluation of SMAD-2 gene expression showed that expression of this gene in treatment group with 250 root extract increased on day 21 compared to day 21 tumor.

According to studies on PTEN, MAGI-2 and SMAD-2 have revealed that inactivation of these three genes is considered a risk for cancer progression.

 Nanoparticles (NPs) are small-sized particles with dimensions of 1 - 100 nm that have various medical and pharmaceutical technology applications.

 In this study, we aimed to develop a quick, green, and eco-friendly procedure for the synthesis of gold NPs (AMGNPs) using the aqueous extract of Achillea millefolium (AM) and evaluate the effects of them on preantral follicle (PF) maturation in vitro compared to commercially provided GNPs (C-GNPs) and the AM extract alone.

 We assessed PF maturation through the morphological assessment of follicles, diameter changes, and estradiol and progesterone levels in PF. We also evaluated the morphometric indices in the control group and groups treated with the AM extract, green GNPs, and C-GNPs.

 The results showed that the AM extract had positive effects on the PF development by increasing the production of estradiol. The evaluation of PF treated with C-GNPs one to four days after the treatment showed that the mean diameter of follicles was significantly reduced in the C-GNPs group compared to the control group. Moreover, the mean estradiol level increased, and the mean progesterone level decreased in all the experimental (10, 25, 50, and 100 µg/mL of C-GNPs, green GNPs, and the AM extract) groups compared to the control group (P-value < 0.05). The size and concentration of the NPs were 20 nm and 150 µg/mL, respectively.

 The findings suggest that green GNPs synthesized with the AM extract can minimize the hazardous effects of NPs and have beneficial effects on the development and growth of PF.
 

The use of plants for therapeutic purposes is the source of many modern medical treatments. In this study, at first, the cytotoxicity of the Foeniculum vulgare (Fennel) extract on cancer cells was studied. Then, TERT gene expression changes were estimated via induction of cancer and extract treatment.
At first, different concentrations of the Fennel extract were obtained for cell morphology and the MTT assay. Afterwards, cancer in mice was induced. Sampling was performed to determine changes in gene expression after 7, 14, 21 and 28 days. After that, RNA was extracted, cDNA was synthesized, and gene expression changes were studied.
Results showed an inhibitory effect on both cell lines at 50% inhibition (IC50) of proliferation at 200 µg/ml after 72 hours using the MTT assay. The morphology results in the third day in 100 and 200 concentrations showed that the extract caused complete degeneration and destruction of cancer cells. The results of analysis of the graphs revealed that the expression of TERT gene in treated cancer samples decreased on days 7, 14 and 28 compared with the control.
The Fennel extract has dual effects on cancer cells through initiating intracellular events. In high concentrations, the extract stimulates proliferative growth in cancer cells and in low concentrations it has inhibitory effects on cell growth and proliferation. In the evaluation of the extract on TERT gene expression, a reduction was observed in gene expression on days 7, 14 and 28. Therefore, the Fennel extract can affect the gene expression through its effect on molecular pathways.

Angiogenesis is one of the most important biological processes that any disruption of it can cause diseases. The main point of the molecular guidance in this process is the vascular endothelial growth factor (VEGF) that acts through its receptors and is one of the angiogenesis specific regulators. This study aimed to investigate the effect of Ocimumbasilicum aqueous and alcoholic extract on VEGF gene expression changes in chick chorioallantoic membrane.
In this empirical study, 60 Ross fertilized eggs were randomly divided into 6 groups, including control group, sham-exposed group, and 4 experimental groups. On the second day of incubation, a window was opened on the eggs and on the eighth day 50 and 150 mg/kg of basil aqueous and alcoholic extracts were injected into the chick chorioallantoic membrane (CAM). On the twelfth day, for RNA extraction and VEGF gene expression examination the chorioallantoic membrane was sampled, then cDNA was synthesized and VEGF gene expression changes were studied using quantitative data analysis in all groups.
The results showed that VEGF gene expression- under the influence of aqueous and alcoholic extracts of basil- increased in all experimental groups compared to the sham group, but the rise was more in those groups, which were treated with aqueous extract, in both dosages, than alcoholic extract-treated groups.
Both aqueous and alcoholic extracts of basil increased VEGF gene expression. The study showed an increase in the number and length of vessels. According to the increasing effects, basil aqueous and alcoholic extracts can affect the molecular processes of growth and dependent processes.

Production and synthesis of new phitochemical drugs against diseases such as cancer are the important efforts that happened recently. Triterpens compounds are important in biological and pharmacological properties, but because of low solubility in aqueous solutions, are less considered. Cyclodextrins as natural nanocapsules are comprised of glucose units. One of the characteristics of them are create complex with hydrophobic guest molecules in nanopores its. In this study it was tried to provide betulinic acid combined with cyclodextrin and nanocapsules containing medicines and its effect on cancer cell line MCF7 was examined.
In this experimental study, first 5, 10 and 15% cyclodextrin solutions were prepared and combined with an equal amount of betulinic acid and then was stirred for 24 hours by rotary devices. Then, by HPLC, betulinic acid value was calculated for each concentration. Then normal and cancer cell lines were prepared and were divided in the control group, treated with CD, treatment with betulinic acid, and treated with nanocapsules containing BT. The cell morphology, cell proliferation and cell survival rate were studied. Results by SPSS software ANOVA and t-test at P The results of HPLC showed that BT amount is 51 micrograms in 5% of solution, 58 micrograms in 10% of solution and 57 micrograms in 15% of solution. The results of morphology and cell survival showed that the nanoparticles containing BT compared to other treatments have inhibitory effect on the proliferation of cancer cells (P Using cyclodextrin nanocapsules can be increased solubility of insoluble compounds and it can be used as a drug delivery system and increase the solubility of the drug.