Related Experiment Video
Updated: May 25, 2026

08:48
Using Live Cell STED Imaging to Visualize Mitochondrial Inner Membrane Ultrastructure in Neuronal Cell Models
Published on: June 30, 2023
Mitochondrial dynamics in depression: friend or foe?
Oluwagbenga M Adu1, Edem E Edem2, Chidubem F Emereonye1
1Cardio/Endo-metabolic and Microbiome Research Unit, Department of Physiology, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, Nigeria.
Metabolic Brain Disease
|May 23, 2026
Summary
Mitochondrial dysfunction is increasingly linked to depression. This review explores how changes in mitochondria
Area of Science:
- Neuroscience and cellular biology
- Psychiatry and mental health
Background:
- Depression pathophysiology involves complex factors beyond neurotransmitter imbalances.
- Emerging evidence highlights the role of mitochondrial dysfunction in depressive disorders.
Purpose of the Study:
- To review the bidirectional relationship between mitochondrial dynamics and depression.
- To synthesize findings on mitochondrial alterations in depressed individuals.
- To evaluate therapeutic strategies targeting mitochondrial dynamics for depression.
Main Methods:
- Literature review of preclinical and clinical studies.
- Synthesis of research on mitochondrial morphology, dynamics, and mitophagy.
- Evaluation of therapeutic interventions.
Main Results:
- Alterations in mitochondrial morphology and dynamics are observed in depression.
- These mitochondrial changes can play both adaptive and maladaptive roles.
- Conventional antidepressants, lifestyle changes, and targeted compounds show potential.
Conclusions:
- Mitochondrial dynamics are critically involved in depression.
- Understanding this relationship offers new therapeutic avenues.
- Mitochondria-targeted therapies may improve depression treatment.
Related Concept Videos
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,...
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,...
Depressive Disorders: Etiology
Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
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...
Depression: Overview
Depression is a prevalent mental illness marked by persistent sadness and lack of interest in previously enjoyable activities. It can take several forms, including major depression, persistent depressive disorder, and bipolar I and II disorders. Symptoms range from emotional changes like chronic worry to physical changes like sleep disturbances and suicidal thoughts. From a neurobiological perspective, depression is believed to be triggered by abnormalities in the brain's prefrontal cortex,...

