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The measurement of mitochondrial content is essential for bioenergetic research, as it provides a tool to evaluate whether changes in mitochondrial function are strictly due to changes in content or other mechanisms that influence function. In this perspective, we argue that commonly used biomarkers of mitochondrial content may possess limited utility for capturing changes in content with physiological intervention. Moreover, we argue that they may not provide reliable estimates of content in certain pathological situations. Finally, we discuss potential solutions to overcome issues related to the utilization of biomarkers of mitochondrial content. Shedding light on this important issue will hopefully aid conclusions about the mitochondrial structure-function relationship.
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http://dx.doi.org/10.1152/ajpendo.00101.2020 | DOI Listing |
Exp Physiol
September 2025
Department of Hepatobiliary Surgery, The Affiliated Huaian No.1 People's Hospital of Nanjing Medical University, Huaian, Jiangsu, China.
Hepatic ischaemia-reperfusion (IR) injury is a serious clinical issue, especially in patients with type 2 diabetes mellitus (T2DM). As mitochondria play a critical role in the regulation of IR-induced liver damage, mitochondria-targeted treatment is of the utmost significance for improving outcomes. The present study explored the mitoprotective role of combined ginsenoside-MC1 (GMC1) and irisin administration in diabetic rats with hepatic IR injury.
View Article and Find Full Text PDFStem Cell Rev Rep
September 2025
Biomedical Centre Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Malá Hora 4C, Martin, 036 01, Slovakia.
Background: Several studies have suggested that adult human dermal fibroblasts (HDFa) may be a potential alternative source to mesenchymal stem cells for cell therapies. This study aims to characterize HDFa, adipose-derived stem cells (ADMSCs) and dental pulp stem cells (DPSCs) to investigate their proliferation, differentiation potential, mitochondrial respiration, and metabolomic profile. We identified molecules and characteristics that would differentiate MSCs from different sources or confirm their uniformity.
View Article and Find Full Text PDFJ Bioenerg Biomembr
September 2025
Department of Vascular, Shanghai TCM-INTEGRATED Hospital, Shanghai, 200082, China.
This study aimed to investigate the therapeutic effects of Sini Decoction on a murine model of peripheral arterial disease (PAD) and to explore its potential mechanisms of action related to mitochondrial autophagy and M1 macrophage polarization. A total of 36 specific-pathogen-free Kunming mice were used to establish a PAD model and were randomly assigned into four groups: the experimental group (EG, administered Sini Decoction via gavage), the control group (CG, administered rapamycin via gavage), the model group (MG, administered 0.9% sodium chloride solution via gavage), and the normal group (NG, administered 0.
View Article and Find Full Text PDFPsychopharmacology (Berl)
September 2025
Instituto de Biología Celular y Neurociencias "Prof. De Robertis" (IBCN), CONICET-Universidad de Buenos Aires, Buenos Aires, Argentina.
Rationale: Autism spectrum disorders (ASD) are a group of neurodevelopmental and multifactorial conditions with cognitive manifestations. The valproic acid (VPA) rat model is a well-validated model that successfully reproduces the behavioral and neuroanatomical alterations of ASD. Previous studies found atypical brain connectivity and metabolic patterns in VPA animals: local glucose hypermetabolism in the prefrontal cortex, with no metabolic changes in the hippocampus.
View Article and Find Full Text PDFProc Biol Sci
September 2025
Department of Biology, Evolutionary Ecology and Infection Biology, Lund University, SE-223 62, Lund, Sweden.
Incubation temperature affects both growth and energy metabolism in birds after hatching. Changes in cellular mechanisms, including mitochondrial function, are a likely but unexplored explanation for these effects. To test whether temperature-dependent changes to mitochondria may link embryonic development to the post-natal phenotype, we incubated Japanese quail eggs at constant low (36.
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