Evidence map›Paper›PMID 41016963›Full record

ArticleFrontiers of medicine2025

Exogenous spexin aggravates renal ischemia reperfusion injury and triggers toxicity in healthy kidneys.

Kadri Kulualp, Meltem Kumaş Kulualp, Zeynep Semen, Gökçen Güvenç Bayram, Aslı Çelik, Melek Yeşim Ak, Osman Yilmaz

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Article in Frontiers of medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Emerging roles of spexin in cardiovascular homeostasis.Frontiers in cardiovascular medicine · 2026
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Kadri KulualpDepartment of Surgery, Faculty of Veterinary Medicine, Dokuz Eylül University, Izmir, 35890, Turkey.
Meltem Kumaş KulualpDepartment of Histology and Embryology, Faculty of Veterinary Medicine, Dokuz Eylül University, Izmir, 35890, Turkey. meltem.kumas@deu.edu.tr.
Zeynep SemenDepartment of Biochemistry, Faculty of Veterinary Medicine, Dokuz Eylül University, Izmir, 35890, Turkey.
Gökçen Güvenç BayramDepartment of Physiology, Faculty of Veterinary Medicine, Dokuz Eylül University, Izmir, 35890, Turkey.
Aslı ÇelikMultidisciplinary Experimental Animal Laboratory, Faculty of Medicine, Dokuz Eylül University, Izmir, 35410, Turkey.
Melek Yeşim AkDepartment of Histology and Embryology, Faculty of Medicine, Dokuz Eylül University, Izmir, 35410, Turkey.
Osman YilmazMultidisciplinary Experimental Animal Laboratory, Faculty of Medicine, Dokuz Eylül University, Izmir, 35410, Turkey.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Renal ischemia-reperfusion injury (IRI) is a major contributor to acute kidney injury (AKI), leading to substantial morbidity and mortality. Spexin (SPX), a 14-amino acid endogenous peptide involved in metabolic regulation and immune modulation, has not yet been studied in the context of chronic treatment and renal IRI. This study evaluated the effects of exogenous SPX on renal function, histopathological changes, and molecular pathways in both IRI-induced injured and healthy kidneys. Twenty-eight male BALB/c mice were divided into four groups: control, SPX, IRI, and SPX+IRI. IRI was induced by 30 minutes of bilateral renal ischemia followed by 6 hours of reperfusion. Renal injury markers, histopathological changes, inflammatory mediators, apoptotic markers, and fibrosis-related proteins were analyzed. SPX significantly exacerbated IRI-induced kidney injury by activating the Wnt/β-catenin signaling pathway and promoting the upregulation of pro-inflammatory, pro-apoptotic, and pro-fibrotic mediators. It is noteworthy that SPX exerted more severe deleterious nephrotoxic effects in the healthy kidney compared to those observed in the IRI-induced injured kidney. These findings indicate that chronic treatment with SPX administration may have intrinsic pro-inflammatory, pro-apoptotic and fibrotic properties, raising concerns about its therapeutic potential. Further research is needed to clarify its physiological role and therapeutic implications in kidney diseases.

Indexed as

Acute Kidney InjuryKidneyPeptide HormonesReperfusion InjuryAnimalsApoptosisDisease Models, AnimalMaleMiceMice, Inbred BALB CWnt Signaling PathwayPeptide Hormonesapoptosisinflammationmice (BALB/c)renal ischemia-reperfusion injuryspexinWnt/β-catenin signaling

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.