Evidence mapPaperPMID 40520545Full record

ArticleFrontiers in transplantation2025

Males and females respond differently to treatment during isolated kidney perfusion: combined effects of glucocorticoid and estradiol.

Marina Vidal-Dos-Santos, Roberto Armstrong-Jr, Mayara Munhoz de Assis Ramos, Lucas Ferreira da Anunciação, Fernanda Yamamoto Ricardo-da-Silva, Cristiano de Jesus Correia, Petra J Ottens, Luiz Felipe Pinho Moreira, Henri G D Leuvenink, Ana Cristina Breithaupt-Faloppa

Abstract read
In one paragraph

Article in Frontiers in transplantation, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

10 authors.

Marina Vidal-Dos-SantosLaboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
Roberto Armstrong-JrLaboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
Mayara Munhoz de Assis RamosLaboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
Lucas Ferreira da AnunciaçãoLaboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
Fernanda Yamamoto Ricardo-da-SilvaLaboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
Cristiano de Jesus CorreiaLaboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
Petra J OttensDepartment of Surgery, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands.
Luiz Felipe Pinho MoreiraLaboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.
Henri G D LeuveninkDepartment of Surgery, University Medical Centre Groningen, University of Groningen, Groningen, Netherlands.
Ana Cristina Breithaupt-FaloppaLaboratorio de Cirurgia Cardiovascular e Fisiopatologia da Circulação (LIM-11), Instituto do Coração (InCor), Faculdade de Medicina da Universidade de São Paulo, São Paulo, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Kidney perfusion is a tool that allows organs to be assessed before transplantation. After brain death (BD), hormonal dysfunction can compromise graft quality. Hormonal treatment of donors has shown positive outcomes, and treatment during ex vivo perfusion may be advantageous. The combination of 17β-estradiol (E2) and methylprednisolone (MP) has been shown to modulate inflammation in donors. Therefore, this study aims to evaluate treatment with E2 and MP during isolated perfusion of kidneys in brain-dead male and female rats. Methods: Female and male Wistar rats were submitted to BD and maintained for 4 h. In the same animal, the right kidney [RK-no isolated perfusion of kidney (IPK)] was removed and stored, while the left kidney (LK-with IPK) had the ureter and the renal artery cannulated and flushed with 5 ml of cold saline. The LK was then taken directly to the IPK system for 90 min. Experimental groups were performed in both male and female: IPK (without treatment) and IPK + Treat (MP and E2 added to the perfusate). Perfusion was performed with a constant pressure of 100 mmHg, using William's Medium E supplemented with HEPES, creatinine, and albumin as perfusate. Perfusate and urine were collected, and flow measurements were recorded. After IPK, the LK was stored. Results: IL-6 was reduced in all perfused groups, regardless of treatment. In female IPK + Treat, there was a reduction in perfusion flow, followed by reduced creatinine clearance and Na Conclusion: The combined treatment of E2 and MP during isolated kidney perfusion compromised kidney function in females. In males, no detrimental effects were observed. These results show a sex-dependent action of the proposed treatment.

Indexed as

brain deathkidneymachine perfusionratsex differences

Identifiers

PMID40520545
PMCPMC12163029

What Socratic holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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 Socratic graph.