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Effects of N-Acetylcysteine on FAS Gene Expression Level in Testicular Tissue of Acrylamide-Treated Adult Rats
Elham Shahrzad1 , Mehrdad Shariati 2, Sirous Naeimi3 , Mohammad Amin Edalatmanesh4
1- Department of Biology, Fars Science and Research Branch, Islamic Azad University, Fars, Iran
2- Department of Biology, Kazerun Branch, Islamic Azad University, Kazerun, Iran , mehrdadshariati@kau.ac.ir
3- Department of Genetics, Kazerun Branch, Islamic Azad University, Kazerun, Iran
4- Department of Biology, Shiraz Branch, Islamic Azad University, Shiraz, Iran
Abstract:   (251 Views)
 Background & Objectives: Acrylamide (ACR) is a chemical with toxic effects on various body tissues. The present study was conducted to investigate the antioxidant effect of N-acetylcysteine (NAC) on the level of testicular apoptosis in acrylamide-treated adult rats.
Material & Methods: Thirty-six adult male Wistar rats were randomly divided into 6 equal groups. The intact control group was without treatment, the positive control group (PC) received 50 mg/kg ACR by oral gavage, the negative control group (NC) received 40 mg/kg NAC intraperitoneally, the animals in experimental groups of 1 (EXP1), 2 (EXP2) and 3 (EXP3) received 10, 20 and 40 mg/kg NAC intraperitoneally, respectively, and then all groups received 50 mg/kg acrylamide by oral gavage. The treatment period in all groups was 28 days. At the end of the study, FAS mRNA expression level was measured by real-time PCR and testicular tissue was evaluated histopathologically.
Results: The PC group showed a significant increase in FAS gene expression level (p<0.05) and spermatogenic degradation compared to the intact control and NC groups. The EXP1 and EXP2 groups showed decrease in FAS gene expression level (p˃0.05) and spermatogenesis improvement in a dose-dependent manner while the EXP3 group exhibited a significant decrease in FAS gene expression level (p˂0.05) and complete spermatogenesis recovery compared to the PC group.
Conclusion: The findings indicate that ACR increases apoptosis and destroys spermatogenesis by increasing FAS gene expression levels. In contrast, at the maximum dose (40 mg/kg), NAC could inhibit ACR-induced apoptosis by reducing FAS gene expression and improves spermatogenesis in rats.
Keywords: Apoptosis, N-acetylcysteine, Acrylamide, Testis, Rat
Type of Study: Research | Subject: Toxicology
Received: 2020/09/24 | Accepted: 2021/02/13
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