Alireza Monadi Sefidan, Reza Afrisham,
Volume 16, Issue 3 (Aug 2022)
Abstract
Background and Aim: Previous studies have shown that viral and host miRNAs play a role in the process of controlling or progressing the disease and can even be considered as therapeutic targets. Accordingly, the present review study was designed to evaluate the role of host miRNAs and Covid-19 virus in the disease process.
Materials and Methods: The current study was a review study that was conducted during 2012-2022. Studies were extracted from PubMed, Google Scholar, Web of Science and Scopus scientific databases. The researchers selected relevant resources and a summary of them was presented in this review.
Results: The present review study showed that some host miRNAs such as miR-23b-5p, miR-200c, and miR-125a-5p had an inhibitory effect on ACE2 receptor, while miR-3909, miR-4677, and miR-133a had a stimulatory effect on this receptor. Furthermore, host miR-98-5p had an inhibitory effect on TMPRSS2 gene expression. On the other hand, host miR-146a, miR-21, and miR-142 induced inflammation through MAPK and NF-Ƙβ signaling. While, host miR-124, miR-410, and miR-1336 inhibited factor STAT3 and prevented inflammation. Furthermore, host miR-302b and miR-372 targeted the mitochondrial antiviral signaling protein (MAVS), resulting in silencing of type 1 interferon signaling. It has also been established that host exosomal miR-7-5p, miR-24-3p, miR-145-5p, and miR-223-3p inhibited the replication of SARS-CoV-2 and the expression of S protein and their decreased expression in elderly and Diabetic subjects was associated with decreased inhibition of SARS-CoV-2 replication. Moreover, viral miR-359-5p regulated the expression of MYH9 (non-muscle myosin heavy chain 9), which caused virus invasion and release in the host cell.
Conclusion: This study showed that many miRNAs play a role in controlling or progressing the disease of Covid-19 and it is possible to treat the disease of Covid-19 by changing the expression of viral and host miRNA. However, more research is needed in this regard.
Ali Mawla Gawwam Al Meyyah, Hamid Jaddoa Abbas, Reza Afrisham, Nahid Einollahi,
Volume 17, Issue 4 (10-2023)
Abstract
Background and Aim: Diabetes is a metabolic disorder characterized by an elevated blood glucose level, resulting from impairments in insulin action, insulin secretion, or both; which causes abnormalities in the metabolism of carbohydrates, protein, and lipids. Chronic hyperglycemia is associated with long-term damage, dysfunction, and failure of various organs. Adropin and irisin are newly described proteins that can be an essential component in the pathophysiological pathways of diabetes mellitus. The current study was designed to evaluate Irisin and Adropin biochemical markers in patients with type 2 diabetes mellitus and their correlation with risk factors.
Materials and Methods: A case control study, that included 90 patients of type 2 diabetes mellitus and 90 healthy individuals, who matched for both age and sex with patients. Fasting blood sugar (FBS), HbA1c, serum insulin, total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and triglycerides (TG), irisin and adropin were measured at the chemistry laboratory of AL-Faihaa teaching Hospital by standard methods.
Results: Serum irisin (8.154±1.642 vs. 14.06±3.916 ng/ml) and adropin (25.39±8.897 vs. 59.43±8.768 pg/ml) levels were significantly lower in the patient group than in the control cases, respectively (P.value<0.0001). Serum adropin levels were significantly and positively correlated with age (r=0.236, P=0.025) and negatively with BMI (r=-0.209, P=0.048). While, serum irisin levels were significantly and negatively correlated with TG (r=-0.248, P=0.018). Based on ROC analysis, the AUC for irisin was 0.937 (95% CI: 0.906-0.969), which showed a sensitivity of 91.1% and a specificity of 80.0% at the cut-off of 9.715 (P<0.0001). In addition, the AUC for adropin was 0.991 (95% CI: 0.980-1.00), which showed a sensitivity of 100.0% and a specificity of 91.1% for this biomarker at a cut-off of 37.945 (P<0.0001).
Conclusion: Our findings showed that the serum levels of irisin and adropin were lower in the patient group than in the control group. Probably, the reduction of adropin and irisin may be used as a biomarker to predict the risk of T2DM, which requires more studies in this regard.
Mohammad Ahmadian, Zahra Molaei, Monireh Rahimkhani, Shaban Alizadeh, Fariba Nabatchian, Nasrin Dashti, Hamid Choobineh, Bahram Nikmanesh, Yoosef Erfani, Mehdi Zavvar, Reza Afrisham, Ziba Majidi, Alireza Latifi, Mohammad Ebrahimi Siahboomi, Azade Omidkhoda,
Volume 20, Issue 1 (4-2026)
Abstract
Background and Aim: Preparing laboratory sciences students for clinical internship requires enhancing practical skills and effective review of theoretical topics taught in the early years. This study aimed to design, implement, and evaluate a summer school for laboratory skills to improve students’ preparedness before entering clinical internships.
Materials and Methods: This study was conducted over two consecutive academic years (2022–2023 and 2023–2024) at the School of Allied Medical Sciences, in collaboration with the Departments of Laboratory Sciences, Hematology and Blood Transfusion, and Medical Information Sciences. Educational needs were identified through literature review and unstructured interviews. Subsequently, six specialized hands-on workshops were designed and conducted, covering Hematology and Blood Banking, Biochemistry, Immunology and Serology, Microbiology, Parasitology, and Hormone Assays. The quality of the courses was assessed with a researcher-made questionnaire. The questionnaire was designed based on a literature review and considering the research objectives. The face and content validity of this questionnaire was qualitatively reviewed and confirmed by experienced teachers (5 members of the faculty of the Laboratory Sciences Department), and its reliability was calculated and confirmed based on Cronbach’s alpha coefficient of 0.92. The questionnaire items measured the level of student satisfaction with a 5-point Likert scale from completely disagree (1) to completely agree (5). Statistical analysis was performed using SPSS statistical software. The effect of the courses on the students’ competence after the internship was also measured with the questionnaire.
Results: Based on the results of the questionnaires completed by the students, 93.3% of the participants expressed their satisfaction with the overall implementation of the summer school. Further details showed that 91.6% of the students believed that the summer school was effective in improving their practical skills. Also, 78.8% of the participants gave a positive rating to the educational environment provided for practical learning, and 93.9% expressed their satisfaction with the supervision and feedback provided by the professors. Based on the results of the questionnaires after the end of the 12-unit internship, on average, 77.7% of the students stated that participating in the summer school increased their self-confidence and ability to perform laboratory tests during the internship. Also, 66.6% of the participants evaluated the course as an effective factor in improving their readiness to enter the clinical hospital environment. More than 90% considered the workshops useful for consolidating knowledge.
Conclusion: It seems that the summer school increased students’ satisfaction and preparedness for entry into the clinical environment. It is recommended that such programs be integrated into the laboratory sciences curriculum.
