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Experimental alcoholism primes structural and functional impairment of the glymphatic pathway
- Source :
- Brain, Behavior, and Immunity. 85:106-119
- Publication Year :
- 2020
- Publisher :
- Elsevier BV, 2020.
-
Abstract
- Alcoholism is a risk factor for the development of cognitive decline and dementia. Here we demonstrated that the glymphatic function in the brain was impaired by alcohol administration. Acute moderate alcohol administration substantially retarded and reduced the entry of subarachnoid cerebrospinal fluid (CSF) via the paravascular space into the cerebral parenchyma, thus impaired CSF-interstitial fluid (ISF) exchange and parenchymal amyloid β (Aβ) peptide clearance. The elevated release of β-endorphin and reduced cerebrovascular pulsatility after acute alcohol administration may account for the impairment of the glymphatic function. Chronic moderate alcohol consumption led to pronounced activation of astrocytes and a widespread loss of perivascular AQP4 polarization in the brain, which results in an irreversible impairment of the glymphatic function. The results of the study suggest that impaired glymphatic functions and reduced parenchymal Aβ clearance found in both acute and chronic alcohol treatment may contribute to the development of cognitive decline and dementia in alcoholism.
- Subjects :
- Male
0301 basic medicine
medicine.medical_specialty
Functional impairment
Immunology
Acute alcohol
Mice
03 medical and health sciences
Behavioral Neuroscience
0302 clinical medicine
Cerebrospinal fluid
Internal medicine
Parenchyma
Animals
Humans
Medicine
Dementia
Cognitive decline
Cerebrospinal Fluid
Amyloid beta-Peptides
Endocrine and Autonomic Systems
business.industry
Brain
Extracellular Fluid
medicine.disease
Mice, Inbred C57BL
Alcoholism
030104 developmental biology
Endocrinology
Glymphatic system
business
Glymphatic System
Alcohol consumption
030217 neurology & neurosurgery
Subjects
Details
- ISSN :
- 08891591
- Volume :
- 85
- Database :
- OpenAIRE
- Journal :
- Brain, Behavior, and Immunity
- Accession number :
- edsair.doi.dedup.....71300f02e9245fd19a103696480a20b4