Results 1 to 10 of about 20,940 (309)

Epigenetic markers in the embryonal germ cell development and spermatogenesis

Basic and Clinical Andrology, 2023
Résumé La spermatogenèse est le processus de génération de cellules reproductrices mâles à partir de cellules souches spermatogoniales, dans l’épithélium séminifère du testicule.
Amadeusz Odroniec, Marta Olszewska, Maciej Kurpisz   +2 more
doaj   +3 more sources

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

Frontiers 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, Min You, Xiaoyun Zhang, Jingjing Wei, Guangyao Lin, Qianjue Tang, Lianwei Xu   +6 more
doaj   +2 more sources

A rare case of pure-type embryonal carcinoma in a 75-year-old woman mimicking epithelial ovarian carcinoma [PDF]

Kosin Medical Journal, 2022
Embryonal carcinoma, a very rare ovarian germ cell tumor, involves pure and mixed phenotypes. Pure-type embryonal carcinoma has never been reported in postmenopausal women. The current case was, thus, misdiagnosed as an epithelial ovarian carcinoma based
Hyun Been Jo, Eun Taeg Kim, Nam Kyung Lee, Kyung Un Choi, Eon Jin Kim, Yun Joo Shin, Ki Hyung Kim, Dong Soo Suh   +7 more
doaj   +1 more source

Survival of Testicular Pure Embryonal Carcinoma vs. Mixed Germ Cell Tumor Patients across All Stages

Medicina, 2023
Background and Objectives: The impact of pure histological subtypes in testicular non-seminoma germ cell tumors on survival, specifically regarding pure embryonal carcinoma, is not well established.
Cristina Cano Garcia, Andrea Panunzio, Stefano Tappero, Mattia Luca Piccinelli, Francesco Barletta, Reha-Baris Incesu, Kyle W. Law, Lukas Scheipner, Zhe Tian, Fred Saad, Shahrokh F. Shariat, Derya Tilki, Alberto Briganti, Ottavio De Cobelli, Carlo Terrone, Alessandro Antonelli, Severine Banek, Luis A. Kluth, Felix K. H. Chun, Pierre I. Karakiewicz   +19 more
doaj   +1 more source

Mixed Germ Cell Tumour in an Infertile Male Having Unilateral Cryptorchidism: A Rare Case Report [PDF]

Journal of Clinical and Diagnostic Research, 2016
Mixed germ cell tumours with multiple components occur more frequently than the pure varieties of germ cell tumours. Embryonal carcinoma and teratoma together form the most common components of the mixed germ cell tumour but the yolk sac tumour is ...
Anand Singla, Navneet Kaur, Gunjeet Sandhu, Rupesh Nagori   +3 more
doaj   +1 more source

Sacrococcygeal teratoma: evaluation of its approach, treatment and follow-up in two reference children cancer centers in Brazil / Rio de Janeiro

Revista do Colégio Brasileiro de Cirurgiões, 2022
Introduction: sacrococcygeal teratoma (TSC) is the most common tumor of the neonatal period. Alphafetoprotein is an important tumor marker and is used in the follow-up period as a marker of malignancy.
VANESSA DO NASCIMENTO SANTOS, SIMONE DE OLIVEIRA COELHO, ALAN ARAUJO VIEIRA   +2 more
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Molecular and epigenetic pathogenesis of germ cell tumors

Asian Journal of Urology, 2021
The development of germ cell tumors (GCTs) is a unique pathogenesis occurring at an early developmental stage during specification, migration or colonization of primordial germ cells (PGCs) in the genital ridge.
Melanie R. Müller, Margaretha A. Skowron, Peter Albers, Daniel Nettersheim   +3 more
doaj   +1 more source

Germ cells from mouse and human embryonic stem cells [PDF]

Reproduction, 2006
Mammalian gametes are derived from a founder population of primordial germ cells (PGCs) that are determined early in embryogenesis and set aside for unique development. Understanding the mechanisms of PGC determination and differentiation is important for elucidating causes of infertility and how endocrine disrupting chemicals may potentially increase ...
Behrouz, Aflatoonian, Harry, Moore
openaire   +2 more sources

LINEing germ and embryonic stem cells’ silencing of retrotransposons [PDF]

Genes & Development, 2014
Almost half of our genome is occupied by transposable elements. Although most of them are inactive, one type of non-long terminal repeat (LTR) retrotransposon, long interspersed nuclear element 1 (LINE1), is capable of retrotransposition. Two studies in this issue, Pezic and colleagues (pp. 1410–1428) and Castro-Diaz and colleagues (pp.
T. Ishiuchi, M.-E. Torres-Padilla
openaire   +2 more sources

Porcine Germ Cells Phenotype during Embryonic and Adult Development

Animals, 2023
Primordial germ cells (PGCs) are the precursors of gametes. Due to their importance for the formation and reproduction of an organism, understanding the mechanisms and pathways of PGCs and the differences between males and females is essential. However, there is little research in domestic animals, e.g., swine, regarding the epigenetic and pluripotency
Amanda Soares Jorge, Kaiana Recchia, Mayra Hirakawa Glória, Aline Fernanda de Souza, Laís Vicari de Figueirêdo Pessôa, Paulo Fantinato Neto, Daniele dos Santos Martins, André Furugen Cesar de Andrade, Simone Maria Massami Kitamura Martins, Fabiana Fernandes Bressan, Naira Caroline Godoy Pieri   +10 more
openaire   +3 more sources