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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.
Gut-Brain Axis01:22

Gut-Brain Axis

The gut–brain axis is a bidirectional communication system that connects the gastrointestinal tract and the brain. This interaction is mediated through multiple pathways, including the vagus nerve, hormonal signals, immune responses, and chemical messengers produced by gut microbes.Microbial Contributions to Brain FunctionGut microbiota contributes significantly to brain function by producing neuroactive compounds. These include neuroactive compounds that influence neurotransmitters such as...
Attention-Deficit/Hyperactivity Disorder01:30

Attention-Deficit/Hyperactivity Disorder

Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings.
Long-term Depression01:03

Long-term Depression

Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
Calcium Ion Concentration Mechanism
If over time, all...
Disorders of the Nervous Tissue01:28

Disorders of the Nervous Tissue

Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
Homeostatic Imbalances:
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Alzheimer Disease ll: Pathophysiology

Alzheimer disease involves structural changes in the brain that begin long before symptoms appear. The most distinctive features are extracellular neuritic plaques and intracellular neurofibrillary tangles.Neuritic plaques form in the cerebral cortex and around blood vessels. These plaques contain a dense core of beta-amyloid (Aβ)—a toxic protein fragment that clumps outside neurons. The core is surrounded by damaged neuronal extensions, as well as reactive astrocytes and microglia. Abnormal...

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Related Experiment Video

Updated: Jun 30, 2026

A Neurite Outgrowth Assay and Neurotoxicity Assessment with Human Neural Progenitor Cell-Derived Neurons
07:41

A Neurite Outgrowth Assay and Neurotoxicity Assessment with Human Neural Progenitor Cell-Derived Neurons

Published on: August 6, 2020

Brain development: anatomy, connectivity, adaptive plasticity, and toxicity.

Madhu Kalia1

  • 1Department of Molecular Biology, Thomas Jefferson University, Philadelphia, PA 19107, USA. madhu.kalia@jefferson.edu

Metabolism: Clinical and Experimental
|September 23, 2008
PubMed
Summary

The developing brain is uniquely vulnerable to injury, with lasting consequences from developmental disruptions. Understanding genetic and environmental factors is crucial for addressing neurodevelopmental disorders.

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Related Experiment Videos

Last Updated: Jun 30, 2026

A Neurite Outgrowth Assay and Neurotoxicity Assessment with Human Neural Progenitor Cell-Derived Neurons
07:41

A Neurite Outgrowth Assay and Neurotoxicity Assessment with Human Neural Progenitor Cell-Derived Neurons

Published on: August 6, 2020

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07:38

An Engulfment Assay: A Protocol to Assess Interactions Between CNS Phagocytes and Neurons

Published on: June 8, 2014

Rapid Detection of Neurodevelopmental Phenotypes in Human Neural Precursor Cells (NPCs)
10:47

Rapid Detection of Neurodevelopmental Phenotypes in Human Neural Precursor Cells (NPCs)

Published on: March 2, 2018

Area of Science:

  • Neuroscience
  • Developmental Biology
  • Toxicology

Background:

  • The developing brain's complexity creates unique windows of susceptibility to injury.
  • Environmental toxins and genetic factors significantly impact neurodevelopment.
  • Prevalence of idiopathic neurodevelopmental disorders is increasing.

Purpose of the Study:

  • To review brain developmental anatomy, connectivity, and plasticity.
  • To examine the impact of toxicity on the developing brain.
  • To discuss current knowledge and future trends in neurodevelopmental research.

Main Methods:

  • Literature review of genetic studies.
  • Analysis of environmental chemical impacts on neurodevelopment.
  • Examination of adaptive plasticity in the developing brain.

Main Results:

  • Genetic and environmental factors interact to cause neurodevelopmental disorders.
  • Industrial chemicals like lead and mercury are known neurotoxins.
  • Regeneration potential is limited in a disrupted developing brain.

Conclusions:

  • Neurodevelopmental disorders result from complex interactions between genes and environment.
  • Further research is needed to understand and prevent these disorders.
  • Addressing environmental toxicant exposure is critical for brain development.