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

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European Journal of Trauma and Emergency Surgery Aims and scope Submit manuscript

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.

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Data availability

The data presented in the current study are available from the corresponding author on reasonable request.

Abbreviations

8-OHdG:

8-Hydroxy-2′-deoxyguanosine

ATF6:

Activating transcription factor 6

CAT:

Catalase

CHOP:

C/EBP homologous protein

DMSO:

Dimethyl sulfoxide

ELISA:

Enzyme-linked immunosorbent assay

ER:

Endoplasmic reticulum

ERAD:

Endoplasmic reticulum-associated degradation

GPx:

Glutathione peroxidase

GRP78:

78-KDa glucose-regulated protein

H&E:

Hematoxylin and eosin

HMGB1:

High mobility group box 1

IP:

Intraperitoneal

I/R:

Ischemia/reperfusion

IL-6:

Interleukin-6

IRE1:

Inositol requiring enzyme 1

IRI:

Ischemia/reperfusion injury

IQR:

Interquantile range

MDA:

Malondialdehyde

MPO:

Myeloperoxidase

NF-κB p65:

Nuclear factor kappa B protein 65

OSI:

Oxidative stress index

PBS:

Phosphate buffered saline

PERK:

Protein kinase RNA-activated-like ER kinase

ROS:

Reactive oxygen species

SA:

Syringic acid

SOD:

Superoxide dismutase

TAS:

Total antioxidant status

TBA:

Thiobarbituric acid

T/D:

Torsion/detorsion

TNF-α:

Tumor necrosis factor-alpha

TOS:

Total oxidant status

TT:

Testicular torsion

UPR:

Unfolded protein response

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Funding

This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.

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Authors and Affiliations

Authors

Contributions

EAD: Conceptualization, data curation, validation, investigation, software, writing-original draft. SD: Conceptualization, methodology, formal analysis, writing-original draft. IOK: Conceptualization, methodology and writing-original draft. HK: Methodology, investigation. NTA: Methodology, Formal analysis. OFG: Methodology. AM: Data curation, validation, investigation, software. YA: Investigation, writing-original draft.

Corresponding author

Correspondence to Selim Demir.

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Conflict of interest

The authors declare that there are no conflicts of interest.

Ethical approval

This study was approved by the Experimental Animal Local Ethics Committee of Karadeniz Technical University (Protocol no: 2021/65) and performed according to the animal research reporting of in vivo experiments (ARRIVE) guidelines.

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Demir, E.A., Demir, S., Kazaz, I.O. et al. 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 49, 1595–1602 (2023). https://doi.org/10.1007/s00068-023-02227-7

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  • DOI: https://doi.org/10.1007/s00068-023-02227-7

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