Jul 2026· Journal of biochemical and molecular toxicology· Vol 40· 0 citations· 85 references
Medicine
TL;DR
It has been observed that zingerone (ZNG), an antioxidant agent, may be a significant protective against APAP liver damage.
Abstract
The aim of this study is to investigate the protective effect of zingerone (ZNG), an antioxidant agent, against acetaminophen (APAP)‐induced liver damage, which is used as an analgesic and antipyretic. For this purpose, twenty‐eight male rats were divided into four groups: control, ZNG, APAP, and APAP + ZNG. ZNG was administered orally for 7 days, followed by a single dose of APAP on the 7th day. At the end of the study, biochemical, molecular, and immunohistochemical analyses were performed on the liver tissue. According to the data obtained, APAP was found to trigger oxidative stress, inflammation, autophagy, apoptosis, endoplasmic reticulum stress, autophagy, and heat shock proteins in liver tissue. On the other hand, it has been observed that after ZNG treatment, the activities of antioxidant enzymes SOD, GPx, and CAT increased, MDA levels, a significant indicator of lipid peroxidation, decreased, and GSH stores were replenished. Following ZNG treatment, apoptosis was attenuated, resulting in decreased mRNA transcript levels of Bax, caspase‐3, and increase in Bcl‐2 levels. ZNG treatment resulted in a decrease in endoplasmic reticulum stress, inflammation, autophagy mRNA transcript levels. In addition, a decrease in heat shock proteins was detected. In conclusion, it has been observed that ZNG may be a significant protective against APAP liver damage.
Objective(s): This study aimed to assess the protective role of hesperidin (HSP), a citrus flavonoid, against di-(2-ethylhexyl) phthalate (DEHP)-induced kidney toxicity in rats, focusing on oxidative stress, apoptosis, inflammation, and anti-oxidant defense pathways. Materials and Methods: Thirty-five male rats were randomly assigned into five groups (7 per group): control group, DEHP-treated group (1 g/kg), DEHP + HSP (100 mg/kg) group, DEHP + HSP (200 mg/kg) group, and HSP-alone group, and treated orally for 10 consecutive days. Kidney tissues were collected for biochemical assays, including malondialdehyde (MDA), glutathione (GSH), superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GPx). Gene expression of Nrf2, Keap1, HO-1, Bax, Bcl-2, Caspase-3, TLR-4, and NF-κB was analyzed using real-time PCR, and protein levels were evaluated using Western blotting. Results: DEHP significantly increased oxidative damage and the expression of inflammatory and apoptotic markers, while decreasing anti-oxidant parameters. Co-treatment with HSP, particularly at 200 mg/kg, restored anti-oxidant balance, reduced lipid peroxidation, and down-regulated the expression of TLR-4, NF-κB, and Caspase-3. Moreover, HSP increased Bcl-2 levels and enhanced Nrf2/HO-1 signaling, as confirmed by both gene and protein expression data. Conclusion: HSP demonstrates dose-dependent renoprotective effects against DEHP-induced nephrotoxicity in rats. The protective mechanism involves anti-oxidant enhancement and inhibition of oxidative stress-induced inflammation and apoptosis, supporting the therapeutic potential of HSP in managing phthalate-related renal injury.
Tuba Karaarslan, B. Yıldırım, F. Yildirim et al.· Iranian Journal of Basic Med...· 0 citations
Oxidative stress and inflammation contribute to renal dysfunction, and antioxidant-rich functional foods may modulate these processes. This study evaluated the effects of dietary quinoa on oxidative stress and the expression of pyroptosis, inflammation and apoptosis-related genes in healthy rat kidneys. Forty male Wistar albino rats were randomly assigned to control and diet groups containing 5%, 10% or 20% quinoa for six weeks (n=10). Rat body weight, superoxide dismutase activity, glutathione, and malondialdehyde levels in kidney tissue were measured; expression of nine genes was assessed in a representative subgroup using quantitative real-time polymerase chain reaction. Quinoa dose-dependently increased antioxidant markers, reduced lipid peroxidation, and downregulated inflammasome (Nlrp3, Casp-1,Gsdmd), inflammatory (Nf-κB, IL-1β, Tnf-α), and apoptotic (Bax,Casp-3) genes, while increasing Bcl2 expression, with the greatest effects at 10% and 20% quinoa. These findings provide evidence that dietary quinoa beneficially modulates renal molecular pathways involved in oxidative stress and inflammatory responses under physiological conditions.
Kübra İspir, S. Yücecan, İlyas Bozkurt et al.· Gıda· 0 citations