enrichment of cell suspension with germ cells prior to injection into recipient seminiferous tubules is of importance in spermatogonial stem cells (sscs) transplantation. knock-out serum replacement (ksr) has been reported to enhance the proliferation of murine sscs and human embryonic stem cells. the aim of the present study was to investigate the effect of ksr versus fetal bovine serum (fbs) ...

 Introduction: Spermatogonial stem cells (SSCs) are the foundation of spermatogenesis. New procedure such as sound wave especially low intensity ultrasound (LIUS) can be effective on increasing the number of cells. In this study, the effect of LIUS stimulation on mouse SSCs proliferation and colonization was investigated. Methods: Isolated SSCs from neonatal mice were cultured in DMEM cultur...

Molecular dissection and chemical screening on a complex process such as spermatogenesis could be facilitated by cell culture approaches that allow easy access for experimental manipulation and live imaging of specific molecules; however, technical limitations have thus far prevented the complete reconstruction of spermatogenic events in cell culture. Here, we describe the production of functio...

Shared service centers (SSCs) have gained the interest of politicians and public administrations to improve efficiency. By unbundling and centralizing activities, the basic premise for SSCs seems to be that services provided by one local department can be provided to others with relatively few efforts. The introduction of a SSC is a major decision having a long-term impact on all the participan...

Spermatogonial stem cells (SSCs) are defined by their ability to both self-renew and produce differentiated germ cells that will develop into functional spermatozoa. Because of this ability, SSCs can reestablish spermatogenesis after testicular damage caused by cytotoxic agents or after transplantation into an infertile recipient. Therefore, SSCs are an important target cell for restoring male ...

spermatogonial stem cells (sscs) maintain spermatogenesis throughout life in the male. maintenance of sscs and induction of spermiogenesis in vitro may provide a therapeutic strategy to treat male infertility. this study investigated in vitro differentiation of mouse sscs in presence or absence of sertoli cells, hormones and vitamins. spermatogonial populations were enriched from testes of 4-6 ...

The aim of the security and stability control system (SSCS) is to maintain active power balance frequency stability. For large SSCS, it difficult find state space transition rates paths. flat design yields more complex topology. Considering random outages, ultra-high-voltage dc (UHVDC) has capacity levels states. existing evaluation cannot quantify capability SSCS. This paper newly quantifies m...