Showing 26 results for Ansari
Ahmad Hamta, Milad Pezeshki, Jamshid Ansari,
Volume 20, Issue 12 (3-2018)
Abstract
Abstract
Background: Biological and epidemiological data suggest that damage induced by endogenous and exogenous factors affects the integrity and stability of DNA and associated with susceptibility to breast cancer. The XRCC3 protein participates in DNA double-strand breaks and recombination repair. The aim of the present study was to evaluate associations between the risk of breast cancer and Thr241Met polymorphism in the XRCC3 gene.
Materials and Methods: In this study, the effects of Thr241Met polymorphism of the XRCC3 gene and the risk of breast cancer in a population-based case-control study inclusive 80 patients and 80 healthy individuals of women in Markazi province were evaluated. Genomic DNA was extracted from blood samples using the kit procedure. The genotypes of samples were determined by PCR-RFLP technique. Statistical analysis was done using SPSS software (estimation of χ2 and p-value) and the final results were determined.
Results: Statistically significant difference was observed between the two groups of patients and controls for three genotypes of the site rs861539 (p= 0.000). Genotype CT (p= 0.000, OR=2.352, CI= 95%; 2.431 - 39.948) and TT (p = 0.003, OR= 2.352, CI=95%; 0.611 - 9.049) significant associations were showed with risk of breast cancer. Instead, the genotype CC (p= 0.000) showed a protective role against susceptibility to breast cancer.
Conclusion: This study identified that there is significant association between Thr241Met polymorphisms of the XRCC3 and the risk of susceptibility to breast cancer, which is in accordance to some of researchers' studies.
Sima Akhavan, Rokhsare Memar, Leila Dehghani, Behnaz Ansari, Majid Ghasemi,
Volume 21, Issue 6 (12-2018)
Abstract
Background and Aim: Migraine is a common disease with throbbing and unilateral quality, which is accompanied by aura symptoms such as nausea, vomiting and photophobia. The level of procalcitonin is increased in migraine, which is due to the inflammation caused by a low level of serum serotonin. This study aims to investigate the level of serum procalcitonin in patient with migraine by prescribing serotonin agonist drugs.
Materials and Methods: In this case-control study, 40 migraine patients in the center of migraine patients of al-zahra university hospital in Isfahan were selected, among which 26 patients received serotonin as a treatment while the other 14 ones were treated by drugs other than sumatriptan agonist. Then, the level of procalcitonin in these patients was calculated and analyzed.
Findings: The results of the study showed that there was a difference between of the case and control groups in the level of procalcitonin in the serum of their sample blood tests. It seems that the case group patients have a lower level of procalcitonin compared to the control group.
Conclusion: Totally, the current study indicates the effect of serotonin in reducing the level of serum procalcitonin.
Mahdieh Mondanizadeh, Niloofar Moradi, Razieh Amini, Behzad Khansarinejad, Ghasem Mosayebi,
Volume 22, Issue 5 (11-2019)
Abstract
Background and Aim Chronic Lymphocytic Leukemia (CLL) is the most commonly occurring leukemia in adults, accounting for about 30-25% of total leukemia. One of the important etiological causes of this leukemia is the disruption of the Nuclear Factor Kappa B (NF-kB) signaling pathway. The two proteins of Apoptosis-Inducing Ligand (APRIL) and B-Cell Activating Factor (BAFF) play a role in the pathogenesis of this leukemia by affecting the NF-kB signaling pathway. In this study, due to the effect of miRNAs in regulating many cellular processes, the prediction of the prominent miRNAs targeting APRIL and BAFF transcripts in B-cell CLL patients was evaluated using specific and different bioinformatics programs.
Methods & Materials Afterwards retrieving the sequences of APRIL and BAFF proteins from the NCBI website, by using several programs including miRanda, TargetScan, miRWalk, DIANA and miRDB with different algorithms, the prediction of miRNAs targeting these genes was investigated.
Ethical Considerations This study was approved by the Research Ethics Committee of Arak University of Medical Sciences.
Results Based on the scoring system of bioinformatics programs, “hsa-miR-145-5p” and “hsa-miR-185-5p” were identified as miRNAs targeting APRIL gene, while “hsa-miR-424” and “hsa-miR-497”were miRNAs targeting BAFF gene. They were suggested for the practical studies in future.
Conclusion Based on the important role of APRIL and BAFF genes in the normal process of cell death and B-cell evolution, it seems that the mi-RNAs predicted by bioinformatics programs using different algorithms can be used as a diagnostic molecular biomarker to identify B-cell CLL patients.
Tahere Azimi, Malihe Bagheri, Mahdi Pariyan, Behzad Khansarinejad, Ashraf Zamani, Mahdieh Mondanizadeh,
Volume 23, Issue 3 (August & September 2020)
Abstract
Background and Aim: Cervical Cancer (CC) is the third most common malignancy in the women, the main cause of which is human papillomavirus (HPV). Both E6 and E7 oncogenes of the virus play an important role in its tumorigenesis. Today, methods available for screening CC are not capable of detecting the disease at an early stage. Therefore, it is important to identify new biomarkers for early detection of this cancer. For this purpose, in the present study, miRNAs targeting the two oncogenes E6 and E7 of human papillomavirus (types 16 and 18) were studied in CC by bioinformatics.
Methods & Materials: First, using the NCBI database, the E6 and E7 gene sequences were obtained for both human papillomavirus types 16 and 18. Then, using the miRBase and RNA22 bioinformatics databases, the most appropriate targeting miRNAs for these genes were selected.
Ethical Considerations: This study was approved by Ethics Committee of Arak University of Medical Sciences.
Results: Based on the P obtained from bioinformatics databases, miRNA including miR-92a-5p (P=7.51e-2), miR-195-3p (P=2.24e-1), miR-34a-5p (P=2.73e-1) and miR-155-5p (P=4.95e-2) were introduced for the two genes E6 and E7.
Conclusion: Results from bioinformatics studies revealed that of the four miRNAs identified, miR-155-5p and miR-92a-5p are probably the targeting miRNAs specific for the E6 and E7 genes, respectively. Therefore, it seems that these miRNAs can be a suitable candidate for in vitro studies in CC patients.
Ali Asghar Ghalenoei, Hossein Ansari, Abolfazl Payandeh, Azizollah Arbabi Sarjou, Gholamreza Soleimani, Ali Meshkinian,
Volume 24, Issue 3 (August & September 2021)
Abstract
Background and Aim: Genetic and environmental factors are known to be related to the development of childhood Eczema. We aimed to assess the ecological factors associated with the prevalence of Eczema among children using the ISAAC questionnaire.
Methods & Materials: A total of 1600 primary school girls and boys were selected and examined by multistage random sampling in this cross-sectional study. Data were collected and completed using the International ISAAC Questionnaire, including demographic questions and risk factors through interviews with parents, especially the student’s mother. The data were analyzed in SPSS v. 19 software using the Chi-square test and multiple logistic regression.
Ethical Considerations: This study was approved by the Ethics Committee of Zahedan University of Medical Sciences (Code: REC.1397.481).
Results: The prevalence of current Eczema was 10.4% (95%CI: 8.9-11.9). Co-morbidity with Asthma and Rhinitis was 82.8% and 74.5%, respectively. In multiple logistic regression models, history of allergies in family members (OR: 2.35, 95%CI: 1.53-3.59), father snoring (OR: 3.00, CI95%: 1.98-4.55), Keeping any animal in (OR: 1.6, 95%CI: 1.002-2.58), family size (OR: 0.85, 95%CI: 0.68-0.95), exposure to tobacco smoke at home (OR: 2.84, 95%CI: 1.18-6.81), showed a significant relationship with the occurrence of students’ Eczema.
Conclusion: Exposure to tobacco smoke at home, keeping any animal at home are effective factors in the prevalence of Eczema in children. By eliminating these factors, the prevalence of this disease can be reduced. However, the mothers have the most crucial role in screening and early diagnosis of Eczema in school children regarding determinants in this study. According to the results of this study, it is suggested that parents’ education, especially mothers, be emphasized by paying attention to these favorable factors.
Ahmad Ansarifar, Isaac Rahimian-Boogar, Siavash Talepasand,
Volume 27, Issue 6 (1-2025)
Abstract
Introduction: Sociodemographic factors and perceived anxiety have a significant impact on the development of somatic symptom disorder. This study aimed to investigate the role of demographic characteristics, social isolation, and perceived anxiety in predicting somatic symptom disorder.
Methods: In a cross-sectional descriptive study among adults aged 18 to 60 in Tehran in 2023, 437 participants were selected based on convenience sampling. The participants completed the Somatic Symptom Disorder Questionnaire (SSEQ), Social Isolation Questionnaire, and Perceived Anxiety Questionnaire. Data were analyzed using Pearson’s correlation and multiple regression analysis.
Results: The results indicated that social isolation and perceived anxiety have a positive and significant correlation with somatic symptoms disorder (P < 0.01). There was no correlation between demographic characteristics (age, gender, marital status, education, and employment status) and somatic symptoms (P <0.01). Multiple correlation and regression coefficients among research variables were statistically significant (P < 0.01).
Conclusions: The examined model was almost able to predict 22% of the somatic symptoms of the disorder. The results have implications for formulating interventions based on social isolation and perceived anxiety in controlling somatic symptoms. It is essential to pay attention to social isolation and perceived anxiety in the formulation and implementation of interventions and educational programs for the prevention and improvement of somatic symptom disorder.
