Results 61 to 70 of about 11,863 (162)

Derivation and characteristics of pluripotent embryonic germ cells in duck

open access: yesPoultry Science, 2010
Embryonic germ (EG) cells derived from primordial germ cells are undifferentiated and pluripotent stem cells. In our study, primordial germ cells isolated from the genital ridges of Beijing duck (Anas domestica) embryo at stage 28 were co-cultured with mice embryonic fibroblasts.
W, Guan   +6 more
openaire   +2 more sources

Gastric teratoma in a 6-month-old boy

open access: yesAfrican Journal of Paediatric Surgery, 2012
Gastric teratomas are very rare embryonal neoplasms, accounting for 2.6% of all perinatal diagnosed germ cell tumours. About 85% are well-differentiated mature lesions and about 15% are immature tumours with the potential of malignant transformation. The
Peer Wildbrett   +4 more
doaj   +1 more source

Diagnosis and management of a rare bilateral ovarian mixed germ cell tumor: a case report

open access: yesFrontiers in Oncology
BackgroundMixed ovarian malignant germ cell tumors (MOGCTs) are rare neoplasms composed of two or more malignant germ cell components, representing less than 1% of all ovarian germ cell tumors.
Xuanling Li   +6 more
doaj   +1 more source

Pure yolk sac tumor of sacrococcygeal region

open access: yesAutopsy and Case Reports, 2021
The sacrococcygeal region is the most common site for the extragonadal germ cell tumors comprising seminomatous and non-seminomatous tumors. Seminomatous tumors are seminomas, and non-seminomatous tumors comprise mainly teratoma (mature and immature ...
Rashim Sharma   +3 more
doaj  

Advances in the study of tumor markers for intracranial germ cell tumors

open access: yesChinese Journal of Contemporary Neurology and Neurosurgery, 2020
Intracranial germ cell tumors (ICGCTs) are highly heterogeneous tumors that tend to occur in children and adolescents, and their diagnosis and treatment strategies are closely related to their pathological components.
Lei HAN   +3 more
doaj  

Clinical Relevance of HER-2/neu Overexpression in Patients With Testicular Nonseminomatous Germ Cell Tumor

open access: yesUrology Journal, 2010
Introduction: Recent scientific attention has focused on the role of growth factors in the progression of cancer. HER-2/neu is an epidermal growth factor receptor that is demonstrated to have correlation with poor prognosis of many cancers.
Mohammad Reza Ghavamnasiri   +3 more
doaj  

N-cadherin Expression in Testicular Germ Cell and Gonadal Stromal Tumors

open access: yesJournal of Cancer, 2012
Neural-cadherin is a member of the cadherin gene family encoding the N-cadherin protein that mediates cell adhesion. N-cadherin is a marker of Sertoli cells and is also expressed in germ cells of varying stages of maturation.
Daniel J. Heidenberg, Joel H. Barton, Denise Young, Michael Grinkemeyer, Isabell A. Sesterhenn
doaj  

Malignant Ovarian Mixed Germ Cell Tumor: a Rare Case

open access: yesMajallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Qum, 2012
<p><strong><em>Background and Objectives</em></strong>: Mixed Mixed Mixed germ cell tumors of the ovary, uncommon but aggressive tumors are seen most often in young women or adolescent girls, and are generally curable if ...
Z Ebrahimi
doaj  

Supposed pituitary-production of human chorionic Gonadotropin induced by androgen deprivation therapy

open access: yesInternational Brazilian Journal of Urology
Introduction: The main cause of slightly elevated human chorionic gonadotropin (HCG) after successful treatment of male germ cell tumors is considered to be pituitary-derived HCG.
Koji Yoshimura   +4 more
doaj   +1 more source

Current protocols in the generation of pluripotent stem cells: theoretical, methodological and clinical considerations

open access: yesStem Cells and Cloning: Advances and Applications, 2009
Brad B Swelstad, Candace L KerrInstitute for Cell Engineering, Department of Obstetrics and Gynecology, Johns Hopkins University, Baltimore, MA, USAAbstract: Pluripotent stem cells have been derived from various embryonic, fetal and adult sources ...
Brad B Swelstad, Candace L Kerr
doaj  

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