International Journal of Medical Laboratory

1-8

Authors: Nasrin Hadi, Faezeh Namazi, Fatemeh Ketabchi Farinaz Khosravian, Parisa Ravaghi, Mansoor Salehi

Background and Aims: Multiple sclerosis (MS) has been assumed to be a complex and indecipherable disease, and poorly understood with regard to etiology which is characterized by relapses and remissions. The expression of microRNAs (miRNAs) is known to be associated with the regulation of immune responses. Recently, investigations have reported that miRNA expression profiles in blood cells become changed in MS. The aim of this study was to elucidate the alterations in the expression of circulating miR-377 and miR-98 in 60 relapsing-remitting MS (RRMS) patients in comparison with controls. Materials and Methods: This study was conducted using a quantitative real-time polymerase chain reaction method to explore the expression of circulating miR-377 and miR-98 in peripheral blood mononuclear cells from 60 RRMS patients, 30 of whom were recurring patients, 30 were two months after relapse patients, and 30 others were controls, in order to examine the association of expression level of these miRNAs with RRMS. Results: Results indicated that the expression of miR-377 significantly increases in recurring patients and two months after relapse patients in comparison with controls (p=0.0017 and p=0.0001, respectively). However, miR-98 demonstrated down regulation in recurring patients and two months after relapse patients (p=0.0002 and p=0.0001, respectively). Conclusions: It can be concluded that miR-377 and miR-98 may be prospective biomarkers with the potential use for diagnosis of RRMS patients in the future investigations.

15-22

Authors: Hamideh Valizadeh, Gilda Eslami, Reyhane Rahnama, Abolghasem Rahimdel, Fateme Sadat Dashti, Reza Mansouri

Background and Aims: Multiple sclerosis (MS) is known as a partially inheritable inflammatory autoimmune disease which involves the nervous system. Different studies suggest that immune dysregulation has an important role in the pathogenesis of MS, but its exact pathomechanism has not yet been explicated. The receptor for advanced glycation end products (RAGE) is a member of the immunoglobulin superfamily of cell surface molecules. In MS patients, the expression of membrane-bound RAGE on peripheral blood mononuclear cells, as well as the serum levels of the RAGE ligands are upregulated. Materials and Methods: In this case-control study, we evaluated the association between MS incidence and RAGE p.82G>S polymorphism (rs2070600) compared with healthy controls in an Iranian population. A total of 158 patients and 156 healthy blood donors were enrolled. This polymorphism was genotyped by polymerase chain reaction-restriction fragment length polymorphism. Results: Allele frequencies (p=0.319) and genotype distribution (p=0.315) of the RAGE p.82G>S gene polymorphism in MS patients and controls were not significantly different. Conclusions: The present study indicated no relationship between RAGE p.82G>S polymorphism and the risk of MS in Iranian population.

30-34

Authors: Danyal Daneshdoust , Durdi Qujeq , Mohesn Vakili Sadeghi , Ali Mahmoudi, Hamed Ghasmtabar

Background and Aims: There is now an increasing body of evidence that survivin is a protein, expressed highly in breast cancer. The signaling interaction of protein survivin in breast cancer is still unclear, but physiological regulation of survivin seems to be linked to the breast cancer occurrence and severity of it. Materials and Methods: Serum samples were obtained from April 2015 to November 2017 out of women enrolled in a group undergoing annual breast cancer testing. Routine blood samples were analyzed at the Biochemical Laboratory of Rouhani Babol University Hospital . Results: Serum levels of survivin in patients with breast cancer group increased compared to the healthy controls [207.520±110.284 (mean±SD) vs. 126.212±53.130, ng/L, p<0.001]. Also, we detected a positive correlation between elevated serum survivin level and clinical characteristics of patients with breast cancer. Conclusions: Serum survivin measurement was shown to discriminate patients with breast cancer from healthy controls. However, further studies are needed to confirm this role and its benefits.

41-48

Authors: Khodayar Ghorban, Maryam Dadmanesh, Mahmood Sheikh Fathollahi, Zeynab Rezai, Paria Ezati, Mohammad Hossein Salmani, Fatemeh Akrami Mohajeri, Hasan Yousefi-Daredor,Hasan Ebrahimi,Derek Kennedy, Mohammad Kazemi Arababadi

Background and Aims: The critical aim of this study was to evaluate the effects of breast-milk contamination with Nickel and Arsenic, as well as aflatoxin M1 (AFM1) on the milk levels of IL-6 and IL-8. Materials and Methods: Breast milk was collected from 76 mothers on the 30th day post-parturition and milk levels of AFM1, Nickel, Arsenic, IL-6 and IL-8 were evaluated. Results: The results showed 8 and 29 out of 76 collected samples being contaminated with AFM1, Nickel and Arsenic, respectively. Levels of IL-6 and IL-8 in the milk samples did not differ in AFM1 and Nickel and Arsenic contaminated milk compared with the normal controls (non-contaminated milks). There was a moderate positive relation between milk levels of IL-8 and Arsenic. Conclusions: Although AFM1, Nickel and Arsenic are the inducers of cytokine production; they are unable to induce secretion of IL-6 in breast milk. Arsenic can be a trigger of IL-8, which is a strong chemoattract for neutrophils. Thus, it appears that Arsenic may induce an inflammation in milk in IL-8 dependent manner.