Results 161 to 170 of about 16,604,758 (298)

Rapidly Progressive Metastatic Sertoli Cell Tumor Associated With an Adenomatous Polyposis Coli Mutation: A Case Report and Literature Review

IJU Case Reports, Volume 9, Issue 6, November 2026.
ABSTRACT Introduction Sertoli cell tumors are rare testicular sex cord‐stromal tumors, and clinically malignant behavior is uncommon. We report a rapidly progressive metastatic Sertoli cell tumor associated with an APC mutation. Case Presentation A 27‐year‐old man with familial adenomatous polyposis (FAP) presented with painless right scrotal ...
Kotaro Obayashi, Mika Terasaki, Hiroya Hasegawa, Hikaru Mikami, Masato Yanagi, Hayato Takeda, Yuki Endo, Yuka Toyama, Ryuji Ohashi, Jun Akatsuka   +9 more
wiley   +1 more source

Bilateral testicular Leydig cells tumour in a donkey

, 2007
A rare case of a bilateral Leydig cells tumour located in the testis of a 15–year–old donkey slaughtered normally is presented. Histologically, the testicular tumour showed neoplastic Leydig cells arranged in solid growth as a pseudoadenomatous packet ...
FERRARA G, GALOFARO, Vincenzo, RAPISARDA, GIUSEPPE SANTI, MARINO, Fabio   +3 more
core   +1 more source

Histological Findings in Testes of Baboons (Papio spp.) and Dwarf Bucks (Capra hircus) Subject to Repeated Immunisation Against GnRH

Veterinary Medicine and Science, Volume 12, Issue 6, November 2026.
Long‐term repeated immunisation against GnRH resulted in the absence of active spermatogenesis and may lead to irreversible infertility in dwarf bucks and baboons. Histological examination revealed a marked reduction of the seminiferous tubular lumen, complete depletion of germ cells, germ cell vacuolization and tubular hyalinization.
Teresa Ferrín, Eva Martínez‐Nevado, Juncal García, Adolfo Toledano‐Díaz, Rosario Velázquez, Esther Alba, Cristina Castaño, Belén Martinez‐Madrid, Julián Santiago‐Moreno   +8 more
wiley   +1 more source

Comparative micro‐ornamentation patterns of reptile skin: Phylogeny‐ecology debate and species‐specific variations

The Anatomical Record, Volume 309, Issue 10, Page 2838-2853, October 2026.
Phylogenetic limitations seem more decisive than life habit in the diversity of reptile skin micro‐ornamentation. The ancestral form possibly had polygonal cells with regular borders, smooth surface and had no ridges. Cell morphology change gradually on a single scale, especially widths at scale base are greater than those at middle.
Melodi Yenmiş
wiley   +1 more source

Regulation of the luteinizing hormone receptor in leydig cells [PDF]

, 1992
The structure-function relationships and regulation of luteinizing hormone (LH)/chorionic gonadotropin (CG) receptors in Leydig cells was investigated. Four Leydig cell types were used: two mouse tumour Leydig cells (MA10 and MLTC-1), a rat tumour Leydig
West, Anthony Patrick
core  

Assessment of Gold‐Mediated Male Reproductive Dysfunction in Male WISTAR Rats Through Sperm Analysis and Testosterone Measurement

Journal of Applied Toxicology, Volume 46, Issue 10, Page 3403-3414, October 2026.
ABSTRACT Gold has been used for centuries in both ornamental and medicinal contexts. More recently, gold compounds, containing ions or nanoparticles, have attracted attention for their anti‐inflammatory, anticancer, and diagnostic applications. Therefore, concerns about systemic toxicity and biodistribution have prompted investigations into the ...
Samira Maghraoui, Adrian Florea, Leila Tekaya   +2 more
wiley   +1 more source

Peroxiredoxin 4 Involved in Spermatogenesis by Affecting Oxidative Stress and Ferroptosis

Andrology, Volume 14, Issue 7, Page 2329-2346, October 2026.
ABSTRACT Background The main functions of testes are sperm production and androgen secretion in testicular befitting microenvironment. Excessive level of the reactive oxygen species (ROS) from metabolism and cellular events can lead to oxidative stress (OS) and ferroptosis, which injure the functions of mitochondria and endoplasmic reticulum (ER) of ...
Shuning Yuan, Nini Wei, Weiwei Ma, Mengting Hu, Bei Zhang, Li Gao, Chao Gao, Xiaoyu Yang, Yan Meng, Jiayin Liu, Yugui Cui   +10 more
wiley   +1 more source

Boosting Male Fertility: The Impact of Gonadotropin Therapy on Hypogonadotropic Hypogonadism—A Systematic Review and Meta‐Analysis

Andrology, Volume 14, Issue 7, Page 1971-1987, October 2026.
ABSTRACT Background Male hypogonadotropic hypogonadism typically presents with azoospermia and is one of the few causes of infertility amenable to a medical intervention. Gonadotropin therapy offers a chance to restore spermatogenesis and fertility in these individuals.
Manou Huijben, Anne Prinsen, Laetitia de Kort, Jetske van Breda   +3 more
wiley   +1 more source

Morphometric study on Leydig cells in capsulotomized testis of rats

, 2002
Aim: To further clarify the changes occurred in the testicular capsulotomized rats. Methods: In testicular capsulotomized and sham-operated rats, the cross sectional area, the nucleus diameter and the number of Leydig cells were morphologically analyzed ...
Qin, DN, Lung, MA
core  

Testicular Biopsies in Adolescent and Adult Andrological Patients: The EAA Clinical Guidelines

Andrology, Volume 14, Issue 7, Page 1906-1928, October 2026.
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, George Kanakis, Ewa Rajpert‐De Meyts, Davor Jezek, Ferran Algaba, Gert Dohle, Jolanta Slowikowska‐Hilczer, Sabine Kliesch, Hermann M. Behre, Csilla Krausz, Dimitrios G. Goulis, Niels Jørgensen   +11 more
wiley   +1 more source