Related Experiment Video
Updated: Jan 28, 2026

13:09
Using Brain Activation nir-HEG/Q-EEG and Execution Measures CPTs in a ADHD Assessment Protocol
Published on: April 1, 2018
10.9K
Editorial: Can dysregulated myelination be linked to ADHD pathogenesis and persistence?
Journal of Child Psychology and Psychiatry, and Allied Disciplines
|February 21, 2019
Summary
Attention-deficit/hyperactivity disorder (ADHD) may stem from dysregulated myelination and altered neuronal plasticity, impacting brain maturation and lifelong cognitive deficits. Further research could reveal therapeutic targets for this neurodevelopmental disorder.
Area of Science:
- Neuroscience
- Developmental Biology
- Psychiatry
Background:
- Attention-deficit/hyperactivity disorder (ADHD) is a complex neurodevelopmental disorder with persistent cognitive and emotional impairments.
- The etiology of ADHD is multifactorial, involving genetic, environmental, and neurobiological factors.
Discussion:
- Converging evidence suggests dysregulated myelination and associated alterations in neuronal plasticity are central to ADHD pathophysiology.
- Disrupted brain maturation, linked to myelination deficits, may explain the persistence of ADHD symptoms across the lifespan.
- This neurobiological concept integrates findings from epidemiology, genetics, epigenetics, neuroimaging, and experimental models.
Key Insights:
- Myelination deficits and altered neuronal plasticity are proposed as core mechanisms underlying ADHD onset and persistence.
- These neurobiological alterations disrupt normal brain maturation, leading to enduring cognitive and emotional impairments.
- The findings refine the understanding of ADHD's neurobiology, implicating developmental processes.
Outlook:
- Further research is needed to validate the proposed pathophysiologic mechanism of dysregulated myelination in ADHD.
- This refined understanding opens avenues for novel therapeutic interventions targeting myelination and neuronal plasticity.
- Investigating these mechanisms could lead to more effective, targeted treatments for individuals with ADHD.
More Related Videos
Related Concept Videos
Covalently Linked Protein Regulators
9.4K
Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
These groups modify specific amino acids in a protein....
9.4K
X-linked Traits
58.6K
In most mammalian species, females have two X sex chromosomes and males have an X and Y. As a result, mutations on the X chromosome in females may be masked by the presence of a normal allele on the second X. In contrast, a mutation on the X chromosome in males more often causes observable biological defects, as there is no normal X to compensate. Trait variations arising from mutations on the X chromosome are called “X-linked”.
58.6K
Pulmonary Hypertension: Classification and Pathogenesis
632
Pulmonary hypertension (PH) is a severe health condition in which the mean pulmonary arterial pressure increases to 25 mmHg or more, even when the body is at rest. This high pressure in the blood vessels that transport blood from the heart to the lungs can cause various symptoms, including shortness of breath, can lead to right heart failure, and significantly affect the overall quality of life.
There are various classifications for PH, each relating to different underlying causes and also...
There are various classifications for PH, each relating to different underlying causes and also...
632
Asthma: Pathogenesis and Management
1.3K
Asthma is a chronic pulmonary condition involving inflammation of the airways, hyper-reactivity, and reversible obstruction of the airways. This condition can significantly impact a person's quality of life, making breathing difficult and leading to distressing symptoms.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
Asthma is classified as allergic and non-allergic. Allergens such as dust mites, pollen, and pet dander trigger allergic asthma, while factors like cold air, intense emotions, or exercise can induce non-allergic asthma.
1.3K
Cystic Fibrosis: Pathogenesis
868
Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
CF is primarily caused by a genetic mutation in a chromosome 7 gene coding for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. The most common gene mutation leading to CF is the ΔF508 mutation,...
868
Nervous Tissue: Myelin
5.7K
The myelin sheath is a multilayered lipid and protein covering that insulates the axon of a neuron, enhancing the speed of nerve impulse conduction. Axons without this sheath are referred to as unmyelinated. Two types of neuroglia, Schwann cells in the peripheral nervous system (PNS) and oligodendrocytes in the central nervous system (CNS) are responsible for producing myelin sheaths.
Schwann cells begin to form myelin sheaths around axons during fetal development. They wrap around a small...
Schwann cells begin to form myelin sheaths around axons during fetal development. They wrap around a small...
5.7K

