Results 121 to 130 of about 316,363 (294)
Iranian Journal of Reproductive Medicine, 2015 Background: Azoospermia is the medical condition of a man not having any measurable level of sperm in his semen. Follicle stimulating hormone (FSH) is a member of the glycoprotein hormone family that plays an important role in human reproduction because ...
Behrouz Gharesi-Fard +5 more
doaj
Surgical sperm retrieval: Techniques and their indications
Indian Journal of Urology, 2011 Men with azoospermia can father a child through intra-cytoplasmic sperm injection if sperm can be retrieved from their epididymis or testis. Several percutaneous and open surgical procedures have been described to retrieve sperm.
Rupin Shah
doaj +1 more source
Andrology, Volume 13, Issue 5, Page 1137-1148, July 2025.Abstract Background Small RNAs interacting with PIWI (piRNAs) play a crucial role in regulating transposable elements and translation during spermatogenesis and are essential in male germ cell development. Disruptions in the piRNA pathway typically lead to severe spermatogenic defects and thus male infertility. The HENMT1 gene is a key player in piRNAs
Zeina Wehbe +17 more
wiley +1 more source
Distribution and number of Cajal-like cells in testis tissue with azoospermia
Kaohsiung Journal of Medical Sciences, 2017 We investigated the number and distribution of Cajal-like cells in patients with azoospermia. A total of 99 patients with non-obstructive azoospermia were divided into subgroups [19 patientsin hypospermatogenesis group (S1), 40 patients in maturation ...
Eray Hasirci +8 more
doaj +1 more source
Chromosomal disorders and male infertility [PDF]
, 2015 Male factor infertility is considered a complex disorder with a largely unknown etiology that affects about 7% of men. In general, genetic abnormalities account for 15%-30% of condition and Y chromosome microdeletions are also frequent.
Alves, C. +11 more
core
Andrology, Volume 13, Issue 5, Page 1078-1092, July 2025.Abstract Background Current guidelines indicate that patients with extreme oligozoospermia or azoospermia should be tested for chromosomal imbalances, azoospermia factor (AZF) deletions and/or CFTR variants. For other sperm abnormalities, no genetic diagnostics are recommended.
Manon S. Oud +12 more
wiley +1 more source
Ultrasonographic Appearance of the Deferent Ducts in Dogs without Genitourinary Disease
Veterinary Radiology &Ultrasound, Volume 66, Issue 4, July 2025.ABSTRACT In veterinary medicine, deferent ducts are described as being visible on ultrasound only when pathologically enlarged. Abnormal ultrasonographic enlargement of the deferent ducts has primarily been described secondary to infectious and neoplastic diseases; however, no studies have evaluated the normal ultrasonographic features of these ...
Anna Palomares +4 more
wiley +1 more source
The management of obstructive azoospermia: a committee opinion [PDF]
Fertility and Sterility, 2019 Infertility due to obstructive azoospermia may be treated effectively by surgical reconstruction or by retrieval of sperm from the epididymis or testis, followed by in vitro fertilization with intracytoplasmic sperm injection. This replaces the ASRM documents titled "Sperm retrieval for obstructive azoospermia" and "The management of infertility due to
openaire +2 more sources
Association of FSH Level with Spermatogenic Histology Based on Johnson Criteria in Azoospermic Patients [PDF]
, 2017 The aims of this study is to know the association FSH level with spermatogenic histology on testical biopsy and to evaluate the use of FSH level as predictor of the succes of testical biopsy on azoospermic patient using Johnson criteria. This is a ...
Birowo, P. (Ponco) +3 more
core