Results 61 to 70 of about 15,040 (204)
Pattern and risk factors of cryptorchidism in Gorgan, northern Iran
مجله دانشگاه علوم پزشکی گرگان, 2014 Background and Objective: Cryptorchidism or undescending testis is a developmental defect and occurred in 2-4% of male newborns. This study was done to determine the pattern and risk factors of cryptorchidism in Gorgan, northern Iran.
Mirfazeli A +4 more
doaj
Testicular Biopsies in Adolescent and Adult Andrological Patients: The EAA Clinical Guidelines
Andrology, EarlyView.ABSTRACT Background Histological evaluation of testicular tissue is central to the assessment of infertile men, particularly those at an increased risk of testicular germ cell tumors (TGCT). Traditionally, testicular biopsies have been used primarily for diagnostic purposes, such as the detection of germ cell neoplasia in situ (GCNIS). With advances in
Lise Aksglaede +11 more
wiley +1 more source
Andrology, EarlyView.ABSTRACT Background Metabolic health plays a critical role in maintaining male fertility and may influence offspring health. Therefore, it is necessary to incorporate metabolic indicators into the clinical assessment of male fertility. However, the relationships between different metabolic abnormalities and semen quality remain incompletely understood.
Rubing Hu +4 more
wiley +1 more source
AnimalsYaks, a valuable livestock species endemic to China’s Tibetan plateau, have a low reproductive rate. Cryptorchidism is believed to be one of the leading causes of infertility in male yaks. In this study, we compared the morphology of the normal testis of
Qiu Yan +5 more
doaj +1 more source
Laboratory Animal Research, 2016 Transplantation of spermatogonial stem cells (SSCs) in experimental animal models has been used to study germ line stem cell biology and to produce transgenic animals. The species-specific recipient model preparation is important for the characterization
Won-Young Lee +6 more
doaj +1 more source
Occupational Physical Activity Is Negatively Associated With Semen Quality
Andrology, EarlyView.ABSTRACT Background Lifestyle factors have been associated with semen quality and have been implicated in the reported global decline in semen parameters. Moderate physical activity has been linked to improved semen quality; however, the association between occupational physical activity and semen quality is limited.
Michal Efrat +5 more
wiley +1 more source
Andrology, EarlyView.ABSTRACT Sex chromosome aneuploidies represent a heterogeneous group of chromosomal conditions, in which phenotypic complexity generally increases with the number of supernumerary sex chromosomes. While Turner syndrome and sex chromosome trisomies are relatively well characterized, less is known about congenital malformations in sex chromosome ...
Anna Colding +3 more
wiley +1 more source
Pubertal Dynamics of Sertoli and Leydig Cell Dysfunction in Klinefelter Syndrome
Clinical Endocrinology, EarlyView.ABSTRACT Context Klinefelter syndrome (KS), defined by a 47, XXY karyotype, is commonly associated with progressive testicular failure. The precise timing of Sertoli and Leydig cell dysfunction during puberty remains unclear. Objective To determine the onset and progression of testicular insufficiency during puberty in KS, and to assess whether ...
Tredez Axelle +9 more
wiley +1 more source
Urology Case ReportsCryptorchidism is a common congenital anomaly linked to infertility and testicular cancer risk. Variants in the androgen receptor (AR) gene cause androgen insensitivity syndrome (AIS), ranging from complete (CAIS) to partial (PAIS) and mild (MAIS) forms.
Zohor Azher
doaj +1 more source
Exposure to polychlorinated compounds and cryptorchidism; A nested case-control study.
PLoS ONE, 2020 BackgroundMaldescended testes or cryptorchidism is a genital birth defect that affects 2-9% of all male new-borns. Over the last 40 years there have been reports of increased prevalence in countries like the US, the UK and the Scandinavian countries ...
Jonatan Axelsson +6 more
doaj +1 more source