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The current study investigated the effect of inhibin immunization on germ cell numbers (spermatogonia, spermatocytes, round, and elongated spermatids), seminiferous tubules (ST) diameter, Johnsen's score, epithelial height (μm), luminal tubular diameter (μm), and number of ST per field (ST/field) of Yangzhou goose ganders. Histological evaluation showed apoptosis and regression of testes after inhibin (INH) immunization, with a concomitantly marked reduction in the round and elongated spermatids in the experiment (INH) group compared to the control group. The diameter of seminiferous tubules (ST) and epithelial height (EH) were positively correlated at 181, 200, and 227 days of age. In comparison, luminal tubular diameter (LD) was negatively correlated on day 227 to ST diameter and epithelial height. On day 227, many seminiferous tubules per field (ST/field) were negatively correlated to ST diameter, EH, and LD. INH immunization elevated ST diameter, EH, and LD, while Johnsen's score and number of ST/field had reciprocal expression. In conclusion, the concomitant effect of INH immunization and seasonality in breeding regressed germ cells and damaged spermatogenesis in seminiferous epithelium Yangzhou ganders.
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http://dx.doi.org/10.3390/ani11102801 | DOI Listing |
Front Endocrinol (Lausanne)
September 2025
Andrology Department of Integrative Medicine, Zhongda Hospital, School of Medicine, Southeast University, Nanjing, Jiangsu, China.
With the global prevalence of diabetes mellitus (DM) steadily increasing, its impact on male reproductive health has become a growing area of concern. Diabetes-induced testicular damage involves alterations in testicular cell function, hormone levels, and the integrity of the blood-testis barrier (BTB), ultimately disrupting spermatogenesis. The key pathogenic factors include hyperglycemia, oxidative stress, chronic inflammation, mitochondrial dysfunction, and the accumulation of advanced glycation end products (AGEs).
View Article and Find Full Text PDFHum Reprod
September 2025
Institut National de la Santé et de la Recherche Médicale, Ecole des Hautes Etudes en Santé Publique, Institut de recherche en santé, environnement et travail, Université de Rennes-UMR_S1085, Rennes, France.
Study Question: What is the direct effect of mumps virus (MuV) replication within the human testis on the tissue innate immune responses and testicular cell functions?
Summary Answer: MuV induces an early pro-inflammatory response in the human testis ex vivo and infects both Leydig cells and Sertoli cells, which drastically alters testosterone and inhibin B production.
What Is Known Already: Despite widespread vaccination efforts, orchitis remains a significant complication of MuV infection, especially in young men, which potentially results in infertility in up to 87% of patients with bilateral orchitis. Our understanding of MuV pathogenesis in the human testis has been limited by the lack of relevant animal models, impairing the development of effective treatments.
Mater Today Bio
October 2025
Department of Reproductive Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, China.
Clinically, even in patients diagnosed with non-obstructive azoospermia, spermatogenesis may be present in some seminiferous tubules, which gives the patient hope of having biological offspring of his own. However, there is still a blank for high-precision detection technologies to support accurate diagnosis and effective treatment. In this work, we successfully developed a minimally invasive fine needle detection memristive device that features a structure composed of Ag/CH-MnO/FTO by utilizes the organic-inorganic heterojunction as functional layer.
View Article and Find Full Text PDFToxicol Appl Pharmacol
September 2025
Department of Environmental Hygiene and Toxicology, School of Public Health, Wenzhou Medical University, Wenzhou 325035, China. Electronic address:
Phthalates (PEs) are widespread in environment, and human beings are unavoidably exposing to the mixture of PEs, which may induce male reproductive health risks. In order to investigate the mechanism of male reproductive injuries caused by the mixture of di-2-ethylhexyl phthalate, dibutyl phthalate and butyl benzyl phthalate (MPEs), male rats were orally exposed to 16 mg/kg/d MPEs (L-MPEs) and 450 mg/kg/d MPEs (H-MPEs) for 90 days, and the results showed that MPEs decreased the weights of testes, epididymis and periepididymis fat, decreased serum levels of male hormones, increased abnormal sperm rate, and caused testicular histopathological damages, such as atrophy and cavitation of seminiferous tubules, spermatids exfoliation, Leydig cells hyperplasia and accumulation of lipid droplets in the testicular interstitium. Testicular transcriptomic analysis identified 100 differently expressed genes (DEGs) in L-MPEs group and 10,880 DEGs in H-MPEs group, and these DEGs mainly involved in signaling pathways of focal adhesion, PI3K-Akt, AGE-RAGE, axon guidance, PPAR, MAPK and etc.
View Article and Find Full Text PDFFront Pediatr
August 2025
Children's Hospital Colorado, Aurora, CO, United States.
Testicular microlithiasis (TM) is a primarily asymptomatic condition characterized by the accumulation of microscopic calcium deposits within the seminiferous tubules. While typically identified incidentally on ultrasonography, TM has generated clinical interest due to its potential links to infertility and testicular malignancy. TM is also associated with benign conditions like cryptorchidism, varicocele, testicular atrophy, and genetic disorders such as Klinefelter syndrome, Down syndrome, and McCune-Albright syndrome.
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