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  4. Neuroplasticity, limbic neuroblastosis and neuro-regenerative disorders

Neuroplasticity, limbic neuroblastosis and neuro-regenerative disorders

Neural Regeneration Research, 2018 · DOI: 10.4103/1673-5374.235214 · Published: August 1, 2018

Regenerative MedicineNeurologyNeuroplasticity

Simple Explanation

Neuroplasticity is the brain's ability to change and adapt throughout life in response to experience, environmental stimuli, and disease. These changes occur at the cellular level, involving biochemical pathways and synaptic remodeling, which facilitates neurological rehabilitation and helps maintain brain balance. Adult neurogenesis, the generation of new neurons in the adult brain, is a key aspect of neuroplasticity. It occurs in the hippocampus and subventricular zone (SVZ) and has been linked to cognitive functions and neural regeneration in response to brain diseases and injuries. Neuroblasts, immature neurons, play a critical role in neuroplasticity and adult neurogenesis. They are generated in the limbic system and basal ganglia, and their characteristics and functions vary among mammals, influencing sensorimotor interfaces and regenerative neuroplasticity.

Study Duration
Not specified
Participants
Human subjects, experimental and wildlife research including rodents, bats and cetaceans
Evidence Level
Review

Key Findings

  • 1
    Adult neurogenesis occurs not only in the hippocampus and SVZ but also in other brain regions like the cortex, amygdala, hypothalamus, and striatum, which are associated with the limbic system and basal ganglia.
  • 2
    Neuroblasts are heterogeneous with multipotential capacity, robust migratory potential, and are modulated by sensorimotor inputs, representing a limbic-motor interface.
  • 3
    Reactive neuroblastosis, a rapid non-malignant cell division followed by apoptosis, is observed in response to early pathogenesis of neurological disorders, including stroke, epilepsy, and Alzheimer's disease.

Research Summary

The brain's ability to adapt and change, known as neuroplasticity, is crucial for maintaining its biological renaissance. Adult neurogenesis, the generation of new neurons in the adult brain, is a key component of neuroplasticity and contributes to neural regeneration in response to brain diseases and injuries. Adult neurogenesis involves the generation of neuroblasts, immature neurons, primarily in the limbic system and basal ganglia. These neuroblasts contribute to various brain functions and differ in characteristics and fate among mammals. Neuroregenerative failure, as opposed to neurodegeneration, may be a critical factor in the development of dementia. Identifying non-invasive strategies, such as ultrasound, to boost cognitive function by regulating neuroblasts may offer potential treatments for dementia.

Practical Implications

Therapeutic Strategies for Brain Diseases

Therapeutic strategies for brain diseases should consider neuroregeneration to fully restore neuroplasticity.

Ultrasound for Cognitive Improvement

Further research into the effects of ultrasound on adult neurogenesis and the role of neuroblasts in cognitive functions could lead to improved neuroregenerative plasticity for aging humans.

Understanding Neuroregenerative Failure

Elucidating the neurobiological basis for neuroregenerative failure may provide insights into the functional recovery of the human brain.

Study Limitations

  • 1
    The molecular and cellular processes associated with adult neurogenesis are not completely understood.
  • 2
    The unpredictable nature of mental status, comorbidity, and limitations of brain imaging tools make it difficult to monitor and demonstrate the complete scenario of neurogenesis in the adult human brain.
  • 3
    Existing knowledge on adult neurogenesis in humans is largely derived from post-mortem studies that may not represent the actual status of the brain.

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