Evidence mapPaperPMID 39844078Full record

ArticleMolecular medicine (Cambridge, Mass.)2025

The mechanism of enterogenous toxin methylmalonic acid aggravating calcium-phosphorus metabolic disorder in uremic rats by regulating the Wnt/β-catenin pathway.

Xing Fan, Jing Li, Yan Gao, Lin Li, Haisong Zhang, Zhaoyu Bi

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Article in Molecular medicine (Cambridge, Mass.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

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2citing papers in PubMed
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3 · Its place in the literature

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2 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

6 authors.

Xing Fan *Department of Nephrology, The Affiliated Hospital of Hebei University, No. 212 Yuhua East Road, Lianchi District, Baoding, 071000, Hebei Province, China.
Jing Li *Department of Nephrology, The Affiliated Hospital of Hebei University, No. 212 Yuhua East Road, Lianchi District, Baoding, 071000, Hebei Province, China.
Yan GaoDepartment of Nephrology, The Affiliated Hospital of Hebei University, No. 212 Yuhua East Road, Lianchi District, Baoding, 071000, Hebei Province, China. gaoyhbbd212@163.com.
Lin LiDepartment of Nephrology, The Affiliated Hospital of Hebei University, No. 212 Yuhua East Road, Lianchi District, Baoding, 071000, Hebei Province, China. dalingele@163.com.
Haisong ZhangDepartment of Nephrology, The Affiliated Hospital of Hebei University, No. 212 Yuhua East Road, Lianchi District, Baoding, 071000, Hebei Province, China.
Zhaoyu BiDepartment of Nephrology, The Affiliated Hospital of Hebei University, No. 212 Yuhua East Road, Lianchi District, Baoding, 071000, Hebei Province, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundUremia (UR) is caused by increased UR-related toxins in the bloodstream. We explored the mechanism of enterogenous toxin methylmalonic acid (MMA) in calcium-phosphorus metabolic disorder in UR rats via the Wnt/β-catenin pathway.

methodsThe UR rat model was established by 5/6 nephrectomy. The fecal bacteria of UR rats were transplanted into Sham rats. Sham rats were injected with exogenous MMA or Salinomycin (SAL). Pathological changes in renal/colon tissues were analyzed. MMA concentration, levels of renal function indicators, serum inflammatory factors, Ca

resultsIntestinal flora richness and diversity in UR rats were decreased, along with unbalanced flora structure. Among the screened 133 secondary differential metabolites, the MMA concentration rose, showing the most significant difference. UR rat fecal transplantation caused elevated MMA concentration in the serum and renal tissues of Sham rats. The intestinal flora metabolite MMA or exogenous MMA promoted intestinal barrier impairment, increased intestinal permeability, induced glomerular podocyte loss, and reduced GFR, causing calcium-phosphorus metabolic disorder. The intestinal flora metabolite MMA or exogenous MMA induced inflammatory responses and facilitated glomerular podocyte apoptosis by activating the Wnt/β-catenin pathway, which could be counteracted by repressing the Wnt/β-catenin pathway.

conclusionsEnterogenous toxin MMA impelled intestinal barrier impairment in UR rats, enhanced intestinal permeability, and activated the Wnt/β-catenin pathway to induce glomerular podocyte loss and reduce GFR, thus aggravating calcium-phosphorus metabolic disorder.

Indexed as

CalciumMethylmalonic AcidPhosphorusUremiaWnt Signaling PathwayAnimalsApoptosisbeta CateninDisease Models, AnimalGastrointestinal MicrobiomeMalePodocytesRatsRats, Sprague-Dawleybeta CateninCalciumMethylmalonic AcidPhosphorusEnterogenous toxin methylmalonic acidFecal metabolomicsIntestinal flora imbalanceIntestinal permeabilityUremiaWnt/β-catenin pathway

Identifiers

PMID39844078
PMCPMC11756144

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