Results 141 to 150 of about 4,930,458 (259)

[Follow-up in a boy with Leydig cell tumor after selective surgery]

open access: yes, 2006
A 8(6/12) year-old-boy presented with precocious puberty and a slightly enlarged left testis. After a detailed examination a Leydig cell tumour was diagnosed.
Gozzi, T, Flück, Ch E, Mullis, P-E
core  

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

open access: yesThe 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

Testis: Leydig Cell Tumor

open access: yes, 1900
Leydig cell tumor of testis. There is an ill-defined central nodule which represents the tumor (arrow)
MUSC Department of Pathology and Laboratory Medicine
core  

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

open access: yesJournal 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   +2 more
wiley   +1 more source

Peroxiredoxin 4 Involved in Spermatogenesis by Affecting Oxidative Stress and Ferroptosis

open access: yesAndrology, 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   +10 more
wiley   +1 more source

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

open access: yesAndrology, 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   +3 more
wiley   +1 more source

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

open access: yesAndrology, 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   +11 more
wiley   +1 more source

Effects of Trazodone on Testicular Morphology, Sperm Parameters and Contractility of the Distal Cauda Epididymal Duct in Rats

open access: yesBasic &Clinical Pharmacology &Toxicology, Volume 139, Issue 4, October 2026.
ABSTRACT Trazodone is an antidepressant approved for the treatment of major depressive disorder and is associated with a low incidence of sexual dysfunction. However, its effects on male reproductive health are not yet fully understood. Therefore, this study aimed to evaluate the effects of repeated trazodone administration on reproductive parameters ...
Maria Santana da Silva   +13 more
wiley   +1 more source

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