The purpose of this study was to investigate the effects of excessive zinc intake on the testes and on sperm count and motility in mice. Thirty Balb c mice were divided randomly into 3 groups of 10 animals in each. Group I acted as controls; group II was supplied with drinking water containing 1.5 g/100 mL Zn, and group III was supplied with drinking water containing 2.5 g/100 mL Zn. The animals were sacrificed after 3 wk supplementation and the epididymis and testis were quickly excised. A negative correlation between Zn dose and sperm count and motility was found. The sperm count in group III was significantly lower than in groups II and I (p<0.05). The sperm motility in group III was significantly lower than in the controls (p<0.05). Degenerative changes, including spermatic arrest, degeneration of seminiferous tubules, and fibrosis in interstitial tissue, were observed in group III animals. These results show that high doses of zinc significantly alter sperm motility.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1385/BTER:96:1-3:271 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Sperm DNA fragmentation: focusing treatment on seminal transport fluid beyond sperm production.
Arch Ital Urol Androl
January 2025
Centro de Uro-Andrología S.C., Guadalajara, Jalisco.
Aim: To determine the effects of oral antibiotics and anti-inflammatory agents on semen parameters and the sperm DNA fragmentation index (DFI).
Methods: Ninety-eight men with infertility diagnosis were included. The participants submitted two semen samples, before and at least two months after treatment.
Efficacy and safety of dutasteride in the treatment of alopecia: a comprehensive review.
Expert Opin Pharmacother
January 2025
Mediprobe Research Inc, London, ON, Canada.
Introduction: Alopecia affects many individuals, with androgenetic alopecia (AGA) being the most common form in both men and women. The exact etiology of AGA is unclear. The systemic treatments of AGA include 5-alpha reductase inhibitors (finasteride, dutasteride), low-dose oral minoxidil.
View Article and Find Full Text PDFEstablishment of Rat Models Mimicking Gender-affirming Hormone Therapies.
J Vis Exp
January 2025
Center for Gender-Specific Medicine, Istituto Superiore di Sanità.
Transgender (TG) people are individuals whose gender identity and sex assigned at birth do not match. They often undergo gender-affirming hormone therapy (GAHT), a medical intervention that allows the acquisition of secondary sex characteristics more aligned with their individual gender identity, providing consistent results in the improvement of numerous socio-psychological variables. However, GAHT targets different body systems, and some side effects are recorded, although not yet fully identified and characterized.
View Article and Find Full Text PDFBisphenol F (BPF) exposure impairs sperm quality and offspring development in male zebrafish.
Toxicol Appl Pharmacol
January 2025
Department of Preventive Medicine, Shantou University Medical College, Shantou 515041, Guangdong, China. Electronic address:
Background: Bisphenol F (BPF), a substitute for bisphenol A (BPA), is widely used in consumer products, increasing the potential for environmental exposure. Our study investigated the reproductive effects of BPF on adult male zebrafish and explored its toxicological mechanisms, as well as its intergenerational effects.
Methods: Adult male zebrafish were exposed to BPF concentrations of 0, 50, 500, 2500, and 5000 nM for 21 days.
Fluoride-induced testicular and ovarian toxicity: evidence from animal studies.
Biol Res
January 2025
Clinical Research Development Unit of Tabriz Valiasr Hospital, Tabriz University of Medical Sciences, Tabriz, Iran.
Fluoride (F), as a natural element found in a wide range of sources such as water and certain foods, has been proven to be beneficial in preventing dental caries, but concerns have been raised regarding its potential deleterious effects on overall health. Sodium fluoride (NaF), another form of F, has the ability to accumulate in reproductive organs and interfere with hormonal regulation and oxidative stress pathways, contributing to reproductive toxicity. While the exact mechanisms of F-induced reproductive toxicity are not fully understood, this review aims to elucidate the mechanisms involved in testicular and ovarian injury.
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!