The effect of different doses of nonylphenol on the blood-testicular barrier integrity, hormone level, and DNA damage in the testes of rats

Goktepe Ö., Onder G. O., Cetindag E., Bitgen N., Cengiz Mat Ö., Alisan Suna P., ...Daha Fazla

FOOD AND CHEMICAL TOXICOLOGY, cilt.177, 2023 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 177
  • Basım Tarihi: 2023
  • Doi Numarası: 10.1016/j.fct.2023.113816
  • Dergi Adı: FOOD AND CHEMICAL TOXICOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, Chimica, EMBASE, Environment Index, Food Science & Technology Abstracts, Pollution Abstracts, Veterinary Science Database
  • Erciyes Üniversitesi Adresli: Evet

Özet

Determining the molecular characteristics of the damage caused by NP exposure in the testis is very important for understanding the source of the damage and developing treatment methods accordingly. Therefore, in this study, it is aimed to evaluate the toxic effects that different doses of NP may cause in the testis, including bloodtesticular barrier integrity and sperm DNA damage. For this purpose, 50 adult male Wistar albino rats were used in the study. Low, medium, and high-dose NP groups and the corn oil group were formed. After NP administration at determined doses for 15 days, the testis tissue taken under anesthesia was fixed in formaldehyde. Paraffin blocks were embedded using the routine histological tissue follow-up method. Histopathological and immunohistochemical analyses were performed by taking 5 mu m thick sections from paraffin blocks. The other testicular tissue was taken for the Western blot, Elisa, and comet methods, and the findings of sperm DNA analysis and the blood-testicular barrier were examined. NP caused the seminiferous epithelium to be disorganized and have significantly fewer cells in the testes of rats in different dose NP-induced groups. Compared with the control group, mTOR, Cx43, SCF, and HSP70 protein levels were decreased, while the expression of MMP-9 levels was increased in the different NP dose groups. Furthermore, tissue testosterone and inhibin B levels and SF-1 immunoreactivity intensity gradually decreased depending on the dose increase of NP. DNA damage of testicular tissues were increased in NP groups depending on NP dose. These results suggest that it is evident that NP, a commonly used industrial chemical, is an endocrine disrupting chemical (EDC) with estrogenic activity exerting adverse effects on health and that urgent measures are needed regarding the use.