Results 91 to 100 of about 8,359 (251)

Phenotypic continuum and poor intracytoplasmic sperm injection intracytoplasmic sperm injection prognosis in patients harboring HENMT1 variants

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, Anne‐Laure Barbotin, Angèle Boursier, Caroline Cazin, Jean‐Pascal Hograindleur, Marie Bidart, Emeline Fontaine, Pauline Plouvier, Florence Puch, Véronique Satre, Christophe Arnoult, Selima Fourati Ben Mustapha, Raoudha Zouari, Nicolas Thierry‑Mieg, Pierre F. Ray, Zine‑Eddine Kherraf, Charles Coutton, Guillaume Martinez   +17 more
wiley   +1 more source

Treatment of idiopathic oligozoospermia with tamoxifen — a randomized controlled study [PDF]

International Journal of Andrology, 1992
SummaryThere is no conclusive evidence of the usefulness of tamoxifen in the treatment of idiopathic oligozoospermia (OAT‐syndrome), as it has been used mostly in uncontrolled studies. We herein report on the controlled treatment of OAT‐syndrome with tamoxifen versus placebo following a randomized design. Seventy‐six men with sperm counts of 2–20 times
H. Holland-Moritz, P. Schramm, W. Krause
openaire   +2 more sources

Innovative all‐in‐one exome sequencing strategy for diagnostic genetic testing in male infertility: Validation and 10‐month experience

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, Nicole de Leeuw, Dominique F. C. M. Smeets, Liliana Ramos, Godfried W. van der Heijden, Raoul G. J. Timmermans, Maartje van de Vorst, Tom Hofste, Marlies J. E. Kempers, Marijn F. Stokman, Kathleen W. M. D'Hauwers, Brigitte H. W. Faas, Dineke Westra   +12 more
wiley   +1 more source

Fragmentasi DNA Spermatozoa: Penyebab, Deteksi, dan Implikasinya pada Infertilitas Laki-Laki [PDF]

, 2015
Prediksi fertilitas laki-laki dapat dilakukan dengan analisis semen. Analisis semen konvensionalmerupakan pemeriksaan sederhana dan tidak mahal, tetapi memiliki variabilitas yang tinggi.Integritas DNA spermatozoa penting untuk transmisi informasi genetik.
Lestari, S. W. (Silvia), Sari, T. (Triyana)   +1 more
core   +2 more sources

Semen improvement in oligozoospermic dogs after treatment with Speman®

Bulgarian Journal of Veterinary Medicine
The aim of the present investigation was to evaluate the effect of Speman®, a well-known ayurvedic proprietary preparation, in male dogs suffering from infertility associated with oligozoospermia.
A. L. Antonov
doaj   +1 more source

Validation of the polysemen admixture on viability and acrosomal morphology of boar spermatozoa [PDF]

, 2007
Semen were collected using artificial vagina (AV), from 5 large white boars aged 2-2.5 years twice a week for 16 weeks in each of the two seasons, early rainy (ER) and late rainy (LR) seasons, to determine the effects of multiple semen pool admixture on ...
Ogbuewu, IP, Okoli, IC, Okoro, VM, Umesiobi, DO   +3 more
core  

Emerging trends in the management of non‐obstructive azoospermia

UroPrecision, Volume 3, Issue 2, Page 88-97, June 2025.
Abstract Ten percent of infertile males have azoospermia, classified into obstructive and nonobstructive types, which require specific medical or surgical treatments. In nonobstructive azoospermia, advancements in microsurgery allow for effective sperm retrieval in about half of cases.
Mina Saad, Mohamed Alkabeer, Dina Abdelmonim, Sameh Fayek GamalElDin, Mohamed Wael Ragab   +4 more
wiley   +1 more source

The Intensity of Free Radical Processes and the Testosterone and Estradiol Levels in Seminal Fluid of Men with Different Types of Pathospermia - Personalized Approach

Online Journal of Health & Allied Sciences, 2016
Background: We studied the intensity of free-radical processes and the testosterone and estradiol levels in seminal fluid of men with normospermia, asthenozoospermia, oligozoospermia, oligoasthenozoospermia, teratozoospermia.
Shkurat T, Lomteva S, Sagamonova K, Shestel A, Prokofev V, Sherchkova T, Shimanskaya E, Derevyanchuk E, Aleksandrova A   +8 more
doaj  

High-throughput screening for spermatogenesis candidate genes in the AZFc region of the Y chromosome by multiplex real time PCR followed by high resolution melting analysis [PDF]

, 2013
Microdeletions in the AZF region of the Y chromosome are among the most frequent genetic causes of male infertility, although the specific role of the genes located in this region is not fully understood.
Alechine, Evguenia, Corach, Daniel
core   +4 more sources

Isolated asthenozoospermia: What should we know? A narrative review of literature

UroPrecision, Volume 3, Issue 2, Page 73-86, June 2025.
ABSTRACT Male infertility contributes to 20%–70% of infertile couple cases worldwide. One of the key challenges in this area is asthenozoospermia or reduced sperm motility. A particular subset, known as isolated asthenozoospermia (iASZ), in which low motility occurs without abnormalities in sperm count or shape, often goes unnoticed and is not well ...
Ahmed Eissa, Khaled Almekaty, Ahmed Zoeir, Hussein Mamdoh, Ayman Mousa, Mohammed Abou‐elenein, Tarek Gameel, Maged Ragab   +7 more
wiley   +1 more source