Related Experiment Video
Updated: Aug 5, 2026

08:19
Assessing Mitochondrial Function in Sciatic Nerve by High-Resolution Respirometry
Published on: May 5, 2022
Mitochondrial Dysfunction: From Molecular Mechanisms to Modern Approaches for Basic and Clinical Research
Tatiana V Kirichenko1,2, Yaroslav D Tolkachev2, Stepan M Bessonov2
1Petrovsky National Research Centre of Surgery, 119435 Moscow, Russia.
Biomedicines
|July 28, 2026
Summary
Mitochondrial dysfunction is linked to chronic diseases. Research explores its role and assessment methods for new diagnostics and treatments.
Area of Science:
- Cellular Biology
- Mitochondrial Biology
- Pathogenesis Research
Background:
- Mitochondria are crucial for cellular functions like energy metabolism and apoptosis.
- Mitochondrial dysfunction is implicated in chronic diseases including metabolic disorders, cardiovascular disease, neurodegeneration, and cancer.
- Understanding mitochondrial dynamics, mitophagy, biogenesis, mtDNA damage, and reactive oxygen species is key to disease insights.
Purpose of the Study:
- To review the pathogenetic role of mitochondrial dysfunction in chronic diseases.
- To summarize current methods for evaluating mitochondrial dysfunction.
- To explore integrating biomarkers and developing targeted therapies.
Main Methods:
- Literature review of studies on mitochondrial dysfunction in chronic diseases.
- Analysis of current assessment methods for mitochondrial function.
- Synthesis of findings for diagnostic and therapeutic implications.
Main Results:
- Mitochondrial dysfunction is a common factor in numerous chronic diseases.
- Various methods exist for assessing mitochondrial health, but a comprehensive approach is needed.
- Research highlights potential diagnostic markers and therapeutic targets related to mitochondria.
Conclusions:
- Mitochondrial dysfunction is a significant contributor to chronic disease pathogenesis.
- Reliable and comprehensive assessment of mitochondria is crucial for clinical application.
- Further research can lead to improved diagnostic strategies and mitochondria-targeted treatments.
Keywords:
cardiovascular diseaseflow cytometrymetabolic syndromemitochondrial dysfunctionmtDNAneurodegenerative diseasesoncologyseahorse assaytranscriptome analysisMore Related Videos
Related Concept Videos
Electron Transport Chain: Complex I and II
The mitochondrial electron transport chain (ETC) is the main energy generation system in the eukaryotic cells. However, mitochondria also produce cytotoxic reactive oxygen species (ROS) due to the large electron flow during oxidative phosphorylation. While Complex I is one of the primary sources of superoxide radicals, ROS production by Complex II is uncommon and may only be observed in cancer cells with mutated complexes.
ROS generation is regulated and maintained at moderate levels necessary...
ROS generation is regulated and maintained at moderate levels necessary...
Mitochondrial Membranes
A single mitochondrion is a bean-shaped organelle enclosed by a double-membrane system. The outer membrane of mitochondria is smooth and contains many porins - the integral membrane transporters. Porins enable free diffusion of ions and small uncharged molecules through the outer mitochondrial membrane but limit the transport of molecules larger than 5000 Daltons. Further, the outer mitochondrial membrane forms a unique structure called membrane contact sites with other subcellular organelles,...
Mitochondria
Mitochondria are eukaryotic cellular organelles that are known to produce energy through a process called oxidative phosphorylation. Besides their primary function, mitochondria are involved in various cellular processes, including cell growth, differentiation, signaling, metabolism, and senescence. Age-related changes cause a decline in mitochondrial quality and integrity due to increased mitochondrial mutations and oxidative damage. Thus, aging can severely impact mitochondrial functions,...
Translocation of Proteins into the Mitochondria
Mitochondrial precursors are translocated to the internal subcompartments via independent mechanisms involving distinct protein machineries called translocases.
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
Animal Mitochondrial Genetics
Among all the organelles in an animal cell, only mitochondria have their own independent genomes. Animal mitochondrial DNA is a double-stranded, closed-circular molecule with around 20,000 base pairs. Mitochondrial DNA is unique in that one of its two strands, the heavy, or H, -strand is guanine rich, whereas the complementary strand is cytosine rich and called the light, or L, -strand. Compared to nuclear DNA, mitochondrial DNA has a very low percentage of non-coding regions and is marked by...
ATP Synthase: Mechanism
In animals, the mitochondrial F1F0 ATP synthase is the key protein that synthesizes ATP molecules through a complex catalytic mechanism. While the nuclear genome encodes the majority of ATP synthase subunits, the mitochondrial genome encodes some of the enzyme's most critical components. The formation of this multi-subunit enzyme is a complex multi-step process regulated at the level of transcription, translation, and assembly. Defects in one or more of these steps can result in decreased ATP...

