نتایج جستجو برای: preantral
تعداد نتایج: 599 فیلتر نتایج به سال:
The structure of follicular tissue affects the ability to maintain structural integrity follicles against cryoinjury post-vitrification. Histological analysis was conducted on each stage preantral post-vitrification using 7.5% and 15.0% doses ethylene glycol (EG), ovarian sections with HE staining were observed an Olympus CX21 microscope connected Optilab 3.0 lens Image Raster software. Analysi...
Background: Urtica dioica (UD), as a natural antioxidant, has positive effects on oocyte maturation. This study aimed to investigate the effects of hydro-alcoholic UD extract and retinoic acid on follicular development in an in vitro fertilization (IVF) condition. Methods: A total of 40 female Wistar rats were randomly divided into 5 groups: group 1 received normal saline, group 2 was given...
this manuscript reviews the present knowledge related to folliculogenesis in sheep.folliculogenesis starts with formation of primordial follicles before birth, present as a pool containing a certain number of follicles. by the attainment of puberty, a group of follicles from that pool starts to grow, a process known as primordial follicle activation or recruitment. the number of growing primord...
To date, methods for quantifying cellular proliferation within the human ovary have relied primarily on static measurements at time of tissue recovery, such as labeling ki67 and phosphohistone-H3. Here, we describe a method based consecutive injection two thymidine analogues, ethynyl deoxyuridine (EdU) 5-chloro-2′-deoxyuridine (CldU), in ovarian xenograft model, allowing resolution division dis...
Background Sample preparation is the first step in the evaluation of tissue samples. In this research tried to using two types of formalin and Bouin fixative ovarian tissue morphogenesis be evaluated practical. MaterialsAndMethods Ovaries of 6-8 week-old Naval Medical Research Institute female mice were randomly divided into 3 groups: Ι. Ovaries that immediately fixed in Bouin’s fixative; II. O...
Objectives: It was aimed to investigate the effects of different doses of follicle stimulating hormone (FSH) and activin A on the growth and maturation of preantral mouse follicles during the in vitro culture. Methods: Preantral follicles (90-100 µm in diameter) were harvested from 6-8 week-old Syrian mice and cultured in TCM199 culture medium for 6 days to see the effect of FSH and Activin A...
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