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A new approach to study the architectural arrangement of spermatogenic stages revealed little evidence of a partial wave along the length of human seminiferous tubules
architectural arrangement spermatogenic stages revealed little evidence partial wave human seminiferous tubules
2009/2/12
Although evidence of the spermatogenic wave in humans has been reported, little is known about the architectural arrangement of stages along the length of tubules in men with varied rates of sperm p...
CAG repeat length analysis and mutation screening of the androgen receptor gene in Japanese men with idiopathic azoospermia
Male infertility Kennedy disease sperm production
2008/12/29
Because androgens are required for normal spermatogenesis, we are investigating abnormalities in the androgen receptor as a possible cause of impaired spermatogenesis in patients with idiopathic mal...
The Length of the Spermatogenic Cycle Is Conserved in Porcine and Ovine Testis Xenografts
Pig sheep graft spermatogenesis seminiferous epithelium cycle
2008/12/24
Xenografting of immature mammalian testis tissue into mice can accelerate sperm production. To determine whether this shortened time to sperm production is because of reduced length of the sperma...
Spermatogenic Cycle Length and Spermatogenic Efficiency in the Gerbil（Meriones unguiculatus）
Testis spermatogenesis morphometry sperm production
2008/12/22
The gerbil (Meriones unguiculatus) is a rodent native of the arid regions of Mongolia and China. Because the gerbil can be easily bred in laboratory conditions, this species has been largely used as...
The Ratio of Second to Fourth Digit Length in Azoospermic Males Undergoing Surgical Sperm Retrieval: Predictive Value for Sperm Retrieval and on Subsequent Fertilization and Pregnancy Rates in IVF/ICSI Cycles
Hox genes finger length azoospermia surgical sperm retrieval
2008/12/19
The differentiation of the urogenital system and the appendicular skeleton in vertebrates is under the control of Homeobox (Hox) genes. It has been shown that this common control of digit and gonad ...
An Increased CAG Repeat Length in the Androgen Receptor Gene in Azoospermic ICSI Candidates
Assisted reproduction male infertility spermatogenesis
2008/12/19
The androgen receptor gene has a polymorphic trinucleotide repeat that encodes a polyglutamine tract in its N-terminal transactivation domain. We started this study in order to find out whether a corr...