نتایج جستجو برای: germ cell neoplasm
تعداد نتایج: 1805449 فیلتر نتایج به سال:
background: specific growth factors and feeder layers seem to have important roles in in vitro embryonic stem cells (escs) differentiation. in this study,the effects of bone morphogenetic protein 4 (bmp4) and mouse embryonic fibroblasts (mefs) co-culture system on germ cell differentiation from mouse escs were studied. materials and methods: cell suspension was prepared from one-day-old embryoi...
ovarian mixed germ cell tumors consisting of endodermal sinus tumor and immature teratoma are very rare and have been reported only in a few case reports. here we report a rare mixed germ cell tumor of ovary which was consisted of endodermal sinus tumor and immature teratoma components with an unusual intraabdominal location. patient was a 21 years old girl with the chief compliant of abdominal...
objective(s):to culture thein vitro mouse embryonic stem cells (mescs) and to direct their differentiation to germ-line cells; in present study we used a vector backbone containing the fusion construct stra8-egfp to select differentiated es cells that entered meiosis. retinoic acid was used to differentiate embryonic stem cells to germ cells. materials and methods: a fragment of stra8 gene pr...
Introduction: Mature teratoma is the most common germ cell tumor(and the most common tumor) of the ovary,composing more than 20% of all ovarian neoplasms .Super infection of dermoid ovarian cyst is very rare. Case Report: A 72 year-old woman was admitted to the gynecological outpatient clinic because of lower abdominal pain and fever. Gynecological examination and ultrasonography revealed a ...
Malignant mixed germ cell tumors,though rare overall, are the most common type of malignant ovarian neoplasms in young and adolescent girls. These tumors are rapidly growing and can metastasize. We report a case of 13-yr-old girl who presented at SHKM GMC, Nalhar, Mewat, Haryana, India in December 2013 with huge abdominal lump of a malignant mixed germ cell tumor comprising both immature terato...
Background Specific growth factors and feeder layers seem to have important roles in in vitro embryonic stem cells (ESCs) differentiation. In this study,the effects of bone morphogenetic protein 4 (BMP4) and mouse embryonic fibroblasts (MEFs) co-culture system on germ cell differentiation from mouse ESCs were studied. MaterialsAndMethods Cell suspension was prepared from one-day-old embryoid bo...
In vitro derivation of germ cells from different stem cells sources has been challenging in the treatment of male infertility. MicroRNAs (miRNAs) have an essential role in gene expression at post-transcriptional level. The aim of this research was to find more about miRNA-17 and miRNA-146 expression during differentiation of spermatogonial stem cell like cells (SSC like cells) from mouse bone m...
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