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RISS 인기검색어
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- 저자 : Asgarian-Omran, Hossein (검색결과 2 건)
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( Gholamhossein Fallahi ),( Asghar Aghamohammadi ),( Ahmad Khodadad ),( Mojtaba Hashemi ),( Payam Mohammadinejad ),( Hossein Asgarian Omran ),( Mehri Najafi ),( Fatemeh Farhmand ),( Farzaneh Motamed ) The Editorial Office of Gut and Liver 2014 Gut and Liver Vol.8 No.1
Background/Aims: Inflammatory bowel disease (IBD) is a chronic disease of the gastrointestinal tract, whose etiologies are still unknown. This study was performed to evaluate the humoral immune response in terms of B cell functions in selected IBD patients. Methods: Eighteen pediatric patients with IBD, including 12 cases of ulcerative colitis (UC) and six with Crohn disease (CD), were enrolled in this study. The pneumococcal vaccine was injected in all patients, and the IgG antibody level to the polysaccharide antigen was measured before and 4 weeks after injection. The B cell switch-recombination process was evaluated. Results: Five patients with IBD (three CD and two UC) had defects in B cell switching, which was significantly higher than in controls (p=0.05). Ten patients had a specific antibody deficiency and exhibited a higher frequency of bacterial infection than the healthy group. The mean increased level of IgG after vaccination was lower in IBD patients (82.9±32.5 μg/mL vs 219.8±59.0 μg/mL, p=0.001). Among the patients who had an insufficient response, no significant difference in the number of switched memory B-cell was observed. Conclusions: A defect in B lymphocyte switching was observed in pediatric IBD patients, and especially in those patients with CD. Owing to an increased risk of bacterial infections in those patients with antibody production defects, pneumococcal vaccination could be recommended. However, not all patients can benefit from the vaccination, and several may require other prophylactic methods. (Gut Liver 2014,8:24-28)
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Effect of First Line Gastric Cancer Chemotherapy Regime on the AGS Cell Line - MTT Assay Results
Alizadeh-Navaei, Reza,Rafiei, Alireza,Abedian-Kenari, Saeid,Asgarian-Omran, Hossein,Valadan, Reza,Hedayatizadeh-Omran, Akbar Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.1
Background: Combination chemotherapy regimes are common treatments for cancer. The aim of this study was to evaluation the effect of individual chemotherapeutic agents in comparison with a first line chemotherapy regime treatment in the AGS gastric cancer cell line by MTT assay. Materials and Methods: In this experimental study, AGS cells were grown in RPMI-1640 supplemented with 10% fetal calf serum and 100 IU/ml penicillin, and $10{\mu}g/ml$ streptomycinin, under a humidified condition at $37^{\circ}C$ with 5% CO2. All cells were washed with PBS and detached with trypsin, centrifuged and 8000 cells re-plated on to 96- well plates. LD50 doses of Epirubicin, Cisplatin and 5-fluorouracil were added to each well in mono or triple therapy. Anti-proliferative activities were determined by MTT assay after 24, 48 or 72 h. Results: Results of MTT assays showed that there were no significant differences among 3 drugs in monotherapy (p=0.088), but there was significant difference between combination therapy with epirubicin (P=0.031) and 5FU (p=0.013) on cell survival at 24 h. After 48 and 72 hours, cell viability showed significant differences between the 3 drugs (p=0.048 and P=0.000 for 48 and 72 h, respectively) and there was significant difference between combination therapy with epirubicin (P=0.035 and P=0.002 for 48 and 72 h, respectively). Conclusions: The results showed no significant differences between these chemotherapy drugs each given alone, but combination therapy with 3 drugs had significant effects on cell viability in comparison with epirubicin alone.
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