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International Journal of Fertility and Sterility، جلد ۴، شماره ۲-۱، صفحات ۱۵-۱۵
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عنوان انگلیسی I-15: Survival and Development Competenceof Buffalo Preantral Follicles Using Three DimensionalCollagen Gel Culture System
چکیده انگلیسی مقاله Background: The aim of the present study was to develop a three-dimensional (3D) collagen gel culture system for the in vitro growth and survival of buffalo preantral follicles with or without growth factors. Materials and Methods: Buffalo ovaries were collected from a local abattoir and preantral follicles were isolated through microdissection. Isolated preantral follicles were put either in collagen gel coated culture dish or embedded in a microdrop of collagen gel. The culture medium was TCM-199 fortified with fetal calf serum (10%), insulin transferin selenium solution (ITS, 1%), epidermal growth factor (EGF, 20 ng/ml) and follicle stimulating hormone (FSH, 0.5μg/ml). Follicles were divided into three groups and cultured in the medium described above (group a, control), with addition of insulin like growth factor (IGF-I, 100 ng/ml, group b), or with addition of IGF-I and basic fibroblast growth factor (bFGF, 10 ng/ml, group c). Preantral follicles were incubated at 38.5 0C in 5% CO2 and maximum humidity. Culture medium was replenished after every 72 h and spent medium was stored at -30°C for hormone analysis. Results: We found that the extracellular matrix of collagen gel maintained follicle viability and growth by providing surface interaction and increasing attachment of follicles. Preantral follicles embedded in collagen gel droplets had better antrum formation and developmentas compared to the whole surface coated culture method. Follicles cultured with IGF-I on collagen gel matrix showed a significantly (p
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نشانی اینترنتی http://ijfs.ir/journal/article/abstract/2419
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