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Related Concept Videos

Neuroplasticity01:01

Neuroplasticity

Neuroplasticity reflects the brain's remarkable capacity to adapt and evolve, responding dynamically to learning, experiences, or injury by reorganizing its neural circuitry. This reorganization involves creating new neural connections and refining old ones through a series of biological processes that contribute to the brain's lifelong development and adaptability.
Mitochondria01:37

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,...
Neurogenesis and Regeneration of Nervous Tissue01:15

Neurogenesis and Regeneration of Nervous Tissue

In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
Mitochondrial Membranes01:45

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,...
The Inner Mitochondrial Membrane01:28

The Inner Mitochondrial Membrane

The inner mitochondrial membrane is the primary site of ATP synthesis. The inner membrane domain that forms a smooth layer adjacent to the outer membrane is called the inner boundary membrane. This domain contains membrane transporters that drive metabolites in and out of the mitochondria.  In contrast, the inner membrane network that invaginates into the matrix space is called the cristae membrane. This domain accounts for principle mitochondrial function as it accommodates the protein...
Translocation of Proteins into the Mitochondria01:19

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,...

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Related Experiment Video

Updated: Jun 7, 2026

Analysis of Brain Mitochondria Using Serial Block-Face Scanning Electron Microscopy
07:47

Analysis of Brain Mitochondria Using Serial Block-Face Scanning Electron Microscopy

Published on: July 9, 2016

Mitochondria and neuroplasticity.

Aiwu Cheng1, Yan Hou, Mark P Mattson

  • 1Laboratory of Neurosciences, National Institute of Aging Intramural Research Program, Baltimore, MD 21224, U.S.A. chengai@mail.nih.gov

ASN Neuro
|October 20, 2010
PubMed
Summary
This summary is machine-generated.

Mitochondria are crucial for neuroplasticity, supporting neuron growth and function. Dysfunctional mitochondria are linked to neurodegenerative diseases, highlighting their importance in brain health.

Keywords:
AD, Alzheimer's diseaseAP, adaptor proteinAPP, amyloid precursor proteinAβ, amyloid β-peptideBDNF, brain-derived neurotrophic factorCR, caloric restrictionCREB, cAMP-response-element-binding proteinCaMK, Ca2+/calmodulin-dependent protein kinaseES, embryonic stemETC, electron transport chainHD, Huntington's diseaseLRRK2, leucine-rich repeat kinase 2LTP, long-term potentiationMAPK, mitogen-activated protein kinaseMn-SOD, manganese superoxide dismutaseNGF, nerve growth factorNMDA, N-methyl-d-aspartateNrf1, nuclear respiratory factor 1OPA1, Optic Atrophy-1PD, Parkinson's diseasePGC1α, peroxisome-proliferator-activated receptor γ co-activator 1αPINK1, PTEN (phosphatase and tensin homologue deleted on chromosome 10)-induced kinase 1PPAR, peroxisome-proliferator-activated receptorUCP, uncoupling proteinmitochondria biogenesismitochondria fission and fusionneural progenitor cell

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Last Updated: Jun 7, 2026

Analysis of Brain Mitochondria Using Serial Block-Face Scanning Electron Microscopy
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Using Live Cell STED Imaging to Visualize Mitochondrial Inner Membrane Ultrastructure in Neuronal Cell Models

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Area of Science:

  • Neuroscience
  • Cell Biology
  • Mitochondrial Biology

Background:

  • Neuroplasticity involves neuron production, axon/dendrite growth, and synapse remodeling.
  • These processes are governed by intrinsic and extrinsic cellular signaling pathways.
  • Mitochondria are dynamic organelles involved in energy production and homeostasis within neurons.

Purpose of the Study:

  • To explore the multifaceted roles of mitochondria in regulating neuroplasticity.
  • To investigate how mitochondrial function impacts neuronal health and disease.
  • To highlight the signaling capabilities of mitochondria in neural processes.

Main Methods:

  • Review of current literature on mitochondrial dynamics and neuroplasticity.
  • Analysis of mitochondrial roles in energy metabolism (ATP, NAD+).
  • Examination of mitochondrial involvement in calcium and redox homeostasis.

Main Results:

  • Mitochondria are essential for neural differentiation, neurite outgrowth, and synaptic plasticity.
  • Mitochondria actively participate in dendritic remodeling and neurotransmitter release.
  • Emerging evidence indicates mitochondria emit signaling molecules affecting nuclear function.

Conclusions:

  • Mitochondria are central regulators of neuroplasticity through energy provision and signaling.
  • Mitochondrial dysfunction is implicated in neurodegenerative conditions like Alzheimer's and Parkinson's diseases.
  • Targeting mitochondrial function represents a potential therapeutic strategy for neurological disorders.