The localization of transforming growth factor-beta 1 in the fetal and neonatal rat testis (from day 13.5 of fetal life to postnatal day 20) was investigated by an immunohistochemical staining method employing a polyclonal anti-TGF-beta 1 antibody that does not cross react with either TGF-beta 2 or TGF-beta 3. In testis and mesonephros tissue, immunostaining for TGF-beta 1 was undetectable on fetal day 13.5 and appeared exclusively in the primordial Sertoli cells on fetal day 14.5. Staining in Sertoli cells was still clearly observed on days 15.5 and 16.5 of fetal life and became faint from fetal day 18.5 onwards. In fetal Leydig cells, a positive reaction for TGF-beta 1 appeared on day 16.5 and became very intense during late fetal life. After birth, fetal-type Leydig cells, which were still observed on postnatal days 4 and 20, also exhibited a very strong immunostaining for TGF-beta 1, whereas adult-type Leydig cells, observed on day 20, showed a slight staining. No immunoreactivity for TGF-beta 1 was found in germ cells and peritubular cells on any day studied. In conclusion, TGF-beta 1 is present very early in the fetal rat testis and its prevailing localization shows age-related changes, which suggests that this factor plays an autocrine/paracrine role in the regulation of testicular function and differentiation, during early development.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/0303-7207(94)90146-5 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Sustanon suppresses spermatogenesis and increases cell death.
Transl Androl Urol
December 2024
Department of Pathology, Pediatric and Perinatal Pathology, University of Miami Miller School of Medicine, Miami, FL, USA.
Background: Anabolic-androgenic steroids (AAS) are synthetic derivatives of testosterone. Sustanon, dissolved in peanut oil, is an AAS used by athletes to build muscle mass. This study aims to examine the effects of Sustanon on male reproductive health.
View Article and Find Full Text PDFPotential of ant nest extract () for protection of testicular morphometry, epididymal functions, and sperm quality in male rats with alloxan- induced diabetes.
Narra J
December 2024
Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Syiah Kuala, Banda Aceh, Indonesia.
Medicinal herbs, such as the ant nest plant (), are promising for the management of diabetes mellitus-associated infertility. The aim of this study was to evaluate the biological activity of the ant nest plant and its capacity to mitigate the adverse effects of alloxan-induced diabetes on testicular morphology, epididymal function, and sperm quality in male rats. The tuber of the ant nest plant was extracted using methanol and then subjected to phytochemical screenings.
View Article and Find Full Text PDFProtective Effect of Nerolidol on Paclitaxel-Induced Reproductive Toxicity in Rats: Oxidative Stress and Inflammation.
Basic Clin Pharmacol Toxicol
February 2025
Department of Pharmacology, Faculty of Medicine, Pamukkale University, Denizli, Turkey.
Paclitaxel (PAC), derived from Taxus brevifolia, is used to treat solid tumours but causes reproductive toxicity due to oxidative stress, affecting sperm quality and testicular tissue. Nerolidol (NRL), an antioxidant sesquiterpene alcohol, has not been studied for its potential to reduce PAC-induced reproductive damage. This study investigates NRL's ability to mitigate PAC-induced reproductive toxicity in rats.
View Article and Find Full Text PDFIn Utero Perfluorodecanoic Acid Exposure Causes Fetal Leydig Cell Dysfunction via Endoplasmic Reticulum Stress-Mediated Lipid Composition Alteration.
Chem Res Toxicol
January 2025
Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325027, China.
Perfluorodecanoic acid (PFDA), a C10 fluorine-containing compound, is used widely and found to be present anywhere. However, whether it has reproductive toxicity for fetal Leydig cells and the underlying mechanisms remain unknown. PFDA was investigated for its effects on fetal Leydig cells (FLCs) following exposure to 0, 1, 2.
View Article and Find Full Text PDFEffect of vortioxetine and fluoxetine on immunohistochemical expression of Caspase-8, RANKL, and IL-6 in testicular tissue in an experimental depression model.
Biotech Histochem
January 2025
Faculty of Medicine, Department of Medical Pathology, Sivas Cumhuriyet University, Sivas, Turkey.
The main symptoms of depression, a chronic mental illness, include sadness, low self-esteem, and a diminished sense of enjoyment in life. Many factors have been suggested to be associated with depression, one of which is low testosterone in men. The serotonin reuptake inhibitor fluoxetine (FLU), used to treat depression, has been reported to potentially have detrimental effects on spermatogenesis in rats after long-term use.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!