STUDY QUESTION Is there a better alternative to the conventional cryopreservation protocols for human testicular tissue banking? SUMMARY ANSWER Uncontrolled slow freezing (USF) using 1.5 M dimethylsulphoxide (DMSO) and 0.15 M sucrose as cryoprotectants appears to be a user-friendly and efficient method for the cryopreservation of human testicular tissue. WHAT IS KNOWN ALREADY Currently, tim...

BACKGROUND Before clinical application, the feasibility and safety of autologous testicular stem cell transplantation should be explored. Apart from limitations in their numbers, spermatogonial stem cells may also be contaminated by malignant cells. Therefore, both enrichment and decontamination before transplantation may be necessary. This study aimed at evaluating the decontaminating potentia...

Recent work in preservation of female fertility as well as new information on the nature of spermatogonial stem cells has prompted an investigation into the possibility of an effective clinical-grade procedure for the cryopreservation of testicular cells and/or tissue. Clinical-grade reagents, validated equipment, and protocols consistent with cGTP/cGMP standards were used in developing a proce...

OBJECTIVES The objective of this review is to study the role of the gubernaculum in the testicular migration process during the human fetal period. MATERIALS AND METHODS We performed a descriptive review of the literature about the role of the gubernaculum in testicular migration during the human fetal period. RESULTS In the first phase of testicular migration, the gubernaculum enlarges to ...

Background Background: Mammalian spermatogenesis is regulated through paracrine and endocrine activity, specific cell signaling, and local control mechanisms. These highly specific signaling interactions are effectively absent upon placing testicular cells into two-dimensional primary culture. The specific changes that occur between key cell types and involved spermatogenesis signaling pathways...

ÖZET Biyolojik dokuların vücut dışında canlılıklarını kaybetmeden yıllar boyunca saklanabilmesi kriyoprezervasyon aracılığıyla gerçekleştirilebilmektedir. Kriyoprezervasyon yoluyla dondurulacak hücreler, spermatogenezisi devam eden sağlıklı ve fertil hayvanlardan uygun metotlarla toplanarak elde edilebilmektedir. Günümüzde, erkek suni vajen, elektroejakülatör, el ile yapılan manipülasyonlar epi...

background: the aim of this study was to determine oxidative stress (os) parameters after testicular torsion/detorsion in adult rats. materials and methods: in this experimental study, male adult wistar rats were divided into four groups, each consisting of seven animals: group i-one hour right testicular torsion with subsequent orchiectomy, group ii-one hour right testicular torsion followed b...

background: testis tissue xenografting and the resultant sperm in a xenograft may provide a unique approach to rescue the genetic material of males that die prematurely and is a model for the study of human spermatogenesis and can represent an alternative approach for fertility preservation in cancer patients. this study was aimed to evaluate the xenogenic dog sperm in formation of male pronucl...

Background: Ceftriaxone is an antibiotic used for treating respiratory,skin,bone and kidney infections. Our purpose was investigating effect of ceftriaxone on testicular tissue. Materials and Methods: 40 mice with 6 weeks old were used in this study. The mice randomly were divided into 2 groups, control- sham and test groups. The test group was subdivided to IP1 and IP2 which received Ceftriaxo...