Syringic acid ameliorates ischemia/reperfusion-induced testicular injury in rats via suppressing of HMGB1/NF-κB axis and endoplasmic reticulum stress

Eur J Trauma Emerg Surg. 2023 Jun;49(3):1595-1602. doi: 10.1007/s00068-023-02227-7. Epub 2023 Jan 24.

Abstract

Purpose: To investigate the possible protective role of syringic acid on torsion/detorsion-induced testicular injury using biochemical and histopathological approaches for the first time.

Methods: A total of 24 rats were divided into 4 groups: sham control, torsion/detorsion, torsion/detorsion + syringic acid (50 mg/kg and 100 mg/kg). Tissue malondialdehyde, total oxidant status and total antioxidant status levels were determined using colorimetric methods. Tissue 8-hydroxy-2'-deoxyguanosine, superoxide dismutase, catalase, high mobility group box 1, nuclear factor kappa B protein 65, tumor necrosis factor-alpha, interleukin-6, myeloperoxidase, 78-kDa glucose-regulated protein, activating transcription factor-6, C/EBP homologous protein and caspase-3 levels were determined using commercial enzyme-linked immunosorbent assay kits. Johnsen's testicle scoring system was used for histological evaluation.

Results: Compared with the control group, the levels of oxidative stress, inflammation, endoplasmic reticulum stress and apoptosis were significantly increased in the torsion/detorsion group (p < 0.05). Syringic acid administrations statistically significantly restored these damage in a dose dependent manner (p < 0.05). Moreover, it was found that the results of histological examinations supported the biochemical results to a statistically significant extent.

Conclusion: The overall results suggest that syringic acid emerges as a potential compound for the treatment of testicular torsion and may be subject to clinical trials.

Keywords: Apoptosis; Endoplasmic reticulum stress; Inflammation; Ischemia/reperfusion injury; Oxidative stress; Syringic acid; Testicular torsion/detorsion.

MeSH terms

  • Animals
  • Endoplasmic Reticulum Stress
  • HMGB1 Protein* / metabolism
  • Ischemia
  • Male
  • NF-kappa B / metabolism
  • Rats
  • Reperfusion
  • Testis* / metabolism
  • Testis* / pathology

Substances

  • NF-kappa B
  • syringic acid
  • HMGB1 Protein