Background & Aim:According to globally development of stomach cancer especially in Ardabil, Iran, as the second major cause of mortality throughout the world, increased drug-resistant bacteria including Helicobacter pylori as the most important risk factors for stomach cancer, and side effects of antibiotics and chemical drugs normally used to treat. Experimental: The current research was conducted to investigate the anticancer and antimicrobial effects of native herbs of liquorice (Glycyrrhiza glabra) and pennyroyal (Mentha pulegium) extractions for finding a solution with the lowest complications in control or treatment of stomach cancer.The extractions were firstly obtained using Soxhlet and methanol solvent and then their compounds were determined by GC/MS. Antimicrobial activity, MIC and MBC of the extractions were assessed respectively using agar diffusion and broth dilution test and the anticancer effect on stomach cancer (cell line AGS) was assessed by MTT assay. H. pylori ATCC 26695 was respectively revived and purified on Brucella broth containing 7% citrated horse serum and Columbia agar. Results: The analysis showed thatliquorice extract contains 15 compositions, mainly consists of 26.48% Nonane, 23.38% Ethylcyclohexan, 8.29% 3-Bromodecane, 10.31% trans-2-Heptenal, 8.93% 9-Octadecenamide and 4.68% β-pregna and pennyroyal extract contains 17 compositions, mainly including 3.36% Camphor, 22.79% Pulegone, 4.92% Paramenth-3-n8-l, 8.06% Menthoforan, 7.54% Cis-Isopulegon and 24.58% α-Selinene. The bacteria were resistant or semi-sensitive to common antibiotics, whereas had considerable sensitivity to herbal extracts and liquorice showed almost three times more antibacterial effect. Pennyroyal extract had no cytotoxic effects, but the anticancer effect was observed in liquorice extract with optimal concentration of 25 μg/ml after 48 hours. Recommended applications/industries: In conclusion, liquorice extract due to the significant health benefits of anticancer and antibacterial activity can be selective and highly effective herbal medicine as an alternative to antibiotics and other chemical drugs. تفاصيل المقالة

Background & Aim: Increasing of drug resistances and more attention to the hazards of side effects of synthetic drugs has caused extensive researches on medicinal plant resources. The aim of this study was to determination of the chemical composition of native Silybum marianum and Foeniculum vulgare extractions in Ardabil, Iran; and investigation of their anticancer effect on liver cancer cell line HepG2 and antimicrobial effects on Staphylococcusaureus and Pseudomonas aeruginosa to propose a solution to control or treatment. Experimental: The chemical compositions of extractions performed through Soxhlet were analyzed by GC/MS system. The anticancer effect was assayed by MTT method and their antimicrobial activities were tested using disc-diffusion assay as well as MIC and MBC values estimated according to the microdilution method. Results: The analysis of S. marianum extract showed the presence of 29 compounds, mostly (2.63%) Nonane, (4.68%) Camphor, (2.84%) Borneol, (3.65%) Trans-anethole, (8.78%) Viridiflorol, (34.26%) α–Selinene, (2.34%) Longiborn-9-ene, (2.52%) amorphane-B, (5.00%) Erucylamide, (10.15%) o-Terphenyl and (46.8%) α-androst-8-ene;F. vulgare extract contained 14 compounds, mainly (5.53%) Fenchone, (5.53%) α- Thujone, (2.84%) Nonane, (79.10%) trans-Anethol and (2.51%) Hentriacontane. The effects of F. vulgare extract on Staphylococcus and S. marianum extract on Pseudomonas were remarkable. In the combined design, there was no clear effect. MIC and MBC values confirmed the results of the sensitivity test. The cytotoxic effects of extractions on liver cancer cells were the optimum in 25μg/ml after 48 hours. Recommended applications/industries: According to the results, these compounds are able to replace by chemical preservatives in food and drugs industries. تفاصيل المقالة

باتوجه به اینکه در بسیاری از سلول‌های سرطانی گیرنده‌های فولیک اسید به مقدار زیادی بیان می‌گردد، بنابراین این ملکول کاندیدای مناسبی جهت هدفمندسازی نانوذرات به منظور انتقال هدفمند ژن به سلول‌ها سرطانی است. در این مطالعه نانوذرات دوگانه دوست Fe3O4-PEI-PU-PEG-FA طراحی شدند. سپس خصوصیات نانوذرات حاصل با استفاده از طیف سنج مادون قرمز (FTIR)، دستگاه اندازه‌گیری خواص مغناطیسی (VSM) مورد بررسی قرار گرفتند. نتایج FTIR و VSM به ترتیب نشان دادند که سنتز نانوذرات Fe3O4-PEI-PU-PEG-FA با موفقیت انجام شده و نانوذرات حاصل از خاصیت مغناطیسی مناسبی برخوردارند. از میکروسکوپ الکترونی عبوری (TEM) به مظور بررسی مورفولوژی نانوذرات حاصل استفاده گردید که تصاویر حاصل، نشان داد نانوذرات Fe3O4-PEI-PU-PEG-FA دارای ساختار کروی می‌باشند. بررسی زیست سازگاری و همچنین بررسی توانایی نانوذرات Fe3O4-PEI-PU-PEG-FA در انتقال DNA به سلول‌های MCF-7 از دیگر فاکتورهای مورد بررسی در این تحقیق بود که به ترتیب توسط تست MTT و دستگاه فلوسایتومتری مورد بررسی قرار گرفتند. نتایج حاصل نشان داد نانوذرات Fe3O4-PEI-PU-PEG-FA از سمیت پایین و بازده انتقال ژن بالاتری در مقایسه با پلیمر PEI برخوردار بودند. تفاصيل المقالة