Evidence mapPaperPMID 41906200Full record

ArticleActa physiologica (Oxford, England)2026

Preoperative Beta-Hydroxy-Beta-Methyl-Butyrate Supplementation Reduces Mitochondrial Dynamics Proteins and Preserves Hepatic Mitochondrial Function After Partial Hepatectomy in Mice.

A L Vieira-da-Silva, M V Esteca, F A Silva, I A Divino, F S Carneiro, E R Ropelle, A S Torsoni, I L Baptista

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Article in Acta physiologica (Oxford, England), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

A L Vieira-da-SilvaLaboratory of Cell and Tissue Biology (LaBCeT), School of Applied Sciences, University of Campinas, Limeira, Brazil.
M V EstecaLaboratory of Cell and Tissue Biology (LaBCeT), School of Applied Sciences, University of Campinas, Limeira, Brazil.
F A SilvaLaboratory of Metabolic Disorders (LabDiMe), School of Applied Sciences, University of Campinas, Limeira, Brazil.
I A DivinoLaboratory of Cell and Tissue Biology (LaBCeT), School of Applied Sciences, University of Campinas, Limeira, Brazil.
F S CarneiroLaboratory of Molecular Biology of Exercise (LaBMEx), School of Applied Sciences, University of Campinas, Limeira, Brazil.
E R RopelleLaboratory of Molecular Biology of Exercise (LaBMEx), School of Applied Sciences, University of Campinas, Limeira, Brazil.
A S TorsoniLaboratory of Metabolic Disorders (LabDiMe), School of Applied Sciences, University of Campinas, Limeira, Brazil.
I L BaptistaLaboratory of Cell and Tissue Biology (LaBCeT), School of Applied Sciences, University of Campinas, Limeira, Brazil.ORCID https://orcid.org/0000-0001-5185-0185

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico #403549/2021-3Conselho Nacional de Desenvolvimento Científico e Tecnológico #420265/2018-0Coordenação de Aperfeiçoamento de Pessoal de Nível Superior 88887.827297/2023-00Fundação de Amparo à Pesquisa do Estado de São Paulo #2019/12236-5Fundação de Amparo à Pesquisa do Estado de São Paulo #2021/05588-2Fundação de Amparo à Pesquisa do Estado de São Paulo #2023/01903-6
6 · The paper itself

Abstract

aimThe liver exhibits a remarkable regenerative capacity, enabling this organ to maintain homeostasis even after significant injury. However, hepatic regeneration requires sufficient energy to sustain cellular hypertrophy and proliferation, thus ensuring efficient tissue repair. Therefore, dietary modulation of pathways regulating mitochondrial quality may enhance liver regeneration. This study aimed to investigate the effects of preoperative beta-hydroxy-beta-methylbutyrate (HMB) supplementation on mitochondrial quality control pathways and its impact on the liver regeneration process in mice undergoing partial hepatectomy (PHx).

methodsMale C57BL/6J mice were supplemented with 600 mg/kg HMB via gavage for 10 days. On the 10th day, supplementation was discontinued, and the mice underwent a ⅔ liver resection. The subsequent 7 days have constituted the liver regeneration period. For a second injury induction, at the end of the 7th day of regeneration, acetaminophen (APAP) overdose was administered via gavage. We then analyzed several markers of mitochondrial quality and liver function.

resultsOur results indicate that preoperative HMB supplementation modulates cell cycle progression, preventing excessive hepatic mass accumulation. Additionally, HMB regulates mitochondrial dynamics by decreasing Parkin, Mfn2, and DRP1 protein levels while increasing the mitochondrial markers VDAC2 and Tom20. Following a second injury from an APAP overdose, the HMB-supplemented group demonstrated increased mtDNA content and enhanced mitochondrial capacity, both critical for effective tissue recovery.

conclusionOur findings suggest that preoperative HMB supplementation preserves hepatic mitochondrial capacity after PHx.

Indexed as

HepatectomyLiverLiver RegenerationMitochondrial DynamicsMitochondria, LiverMitochondrial ProteinsValeratesAnimalsDietary SupplementsMaleMiceMice, Inbred C57BLbeta-hydroxyisovaleric acidMitochondrial ProteinsValeratesliver mass recoveryliver metabolismliver regenerationmitochondrial networkmitochondrial proteinmtDNA content

Identifiers

PMID41906200
PMCPMC13033621

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