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A Possible Relation between Elevated FSH Levels and Leydig Cell Dysfunction in Azoospermic and Oligospermic Men
follicle-stimulating hormone luteinizing hormone testosterone oligospermia
2009/2/18
Plasma testosterone, follicle-stimulating hormone (FSH), and luteinizing hormone (LH) levels were measured in the male partners of 69 infertile couples and in 260 allegedly fertile men requesting va...
The use of a seminal vesicle specific proteinMHS-5（antigen）for diagnosis of agenesis of vas deferens and seminal vesicles in azoospermic men
Male infertility fructose prostate-specific antigen testicular failure seminal veslcle-speciflc protein
2009/2/13
Azoospermia is the cause of infertility in 8% of infertile male patients. Ten percent of those patients suffer from agenesis of the seminal vesicle (SV) and vas deferens (VD) agenesis. Currently, ...
Daily testosterone and gonadotropin levels are similar in azoospermic and nonazoospermic normal men administered weekly testosterone: implications for male contraceptive development
Contraception gonadotropins azoospermia
2008/12/29
Weekly intramuscular administration of testosterone esters such as testosterone enanthate (TE) suppresses gonadotropins and spermatogenesis and has been studied as a male contraceptive. For unknown ...
Fluorescence in situ hybridization analysis of sex-chromosome mosaicism in azoospermic men
Azoospermia chromosome aberration infertility marker
2008/12/29
A retrospective study was carried out to determine the prevalence of sex-chromosome mosaicism among azoospermic men and to evaluate the feasibility of using fluorescence in situ hybridization (FISH)...
Morphology of testicular spermatozoa obtained by testicular sperm extraction in obstructive and nonobstructive azoospermic men and its relation to fertilization success in the in vitro fertilization-intracytoplasmic sperm injection system
Morphology testicular spermatozoa testicular sperm extraction azoospermic men
2008/12/26
The aim of the present study was to evaluate the morphology of testicular spermatozoa by 3 different determinants. Sperm cells were obtained and their morphology was evaluated from 27 testicular spe...
Follicle-Stimulating Hormone Receptor Gene Haplotype Distribution in Normozoospermic and Azoospermic Men
Male infertility polymorphism SNP testis azoospermia
2008/12/23
The human follicle-stimulating hormone (FSH) receptor (FSHR) gene possesses single nucleotide polymorphisms (SNP) in exon 10, which influence serum FSH levels in women, but not in men. In the presen...
Feasibility of Simultaneous Testicular Microdissection for Sperm Retrieval and Ipsilateral Testicular Tumor Resection in Azoospermic Men
Feasibility of Simultaneous Testicular Microdissection Sperm Retrieval Ipsilateral Testicular Tumor Resection Azoospermic Men
2008/12/22
Male infertility is known to be associated with testicular tumors (Honig et al, 1994). In one recent report (Nobert and Goldstein, 2001), at least a 16-fold increase in the risk of testicular cancer, ...
Evaluation of ICSI-Selected Epididymal Sperm Samples of Obstructive Azoospermic Males by the CKIA System
Sperm selection sperm normality chromatin condensation DNA stainability
2008/12/22
The objective of this study was to evaluate nuclear normality in intracytoplasmic sperm injection (ICSI)-selected epididymal sperm from obstructive azoospermic (OA) patients. We evaluated whether th...
Sex Chromosome Alignment at Meiosis of Azoospermic Men With Azoospermia Factor Microdeletion
Azoospermia chromosome pairing FISH Y chromosome microdeletion
2008/12/22
Deletions in the q arm of the Y chromosome result in spermatogenesis impairment. The aim of the present study was to observe the X and Y chromosome alignment in the spermatocytes of men with Y chr...
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 ...
Reduced Human Germ Cell-Less（HGCL）Expression in Azoospermic Men With Severe Germinal Cell Impairment
Testicular HGCL expression markers of spermatogenesis spermatogenesis impairments
2008/12/19
Germ cell-less (GCL) protein is a nuclear envelope protein highly conserved between the mammalian and Drosophila orthologues. In Drosophila, maternal GCL protein is required to establish the germ ...
Induction of Spermatogenesis by Recombinant Follicle-Stimulating Hormone（Puregon）in Hypogonadotropic Azoospermic Men Who Failed to Respond to Human Chorionic Gonadotropin Alone
Follistim gonadotrophin deficiency male infertility testis
2008/12/19
A multicenter, open-label, randomized efficacy and safety study was performed with combined human chorionic gonadotropin (hCG) and recombinant follicle-stimulating hormone (recFSH) (Puregon®) ...
Y Chromosome Deletions in Azoospermic Men in India
Male infertility STS markers repeat sequence
2008/12/19
Genetic factors cause about 10% of male infertility. Azoospermia factors (AZFa, AZFb, AZFc) are considered to be the most important for spermatogenesis. We therefore made an attempt to evaluate the ...
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...
The Evaluation and Management of the Azoospermic Patient
Evaluation Management Azoospermic Patient
2008/12/3
The incidence of azoospermia in infertile men is between 5% and 20%, while in the general population, it is about 2% (Jarow et al, 1989; Jarow, 1992). In the past, the main purpose of the evaluation o...