Abstract
Methamphetamine (METH) is a powerful and often-abused stimulant with potent addictive and neurotoxic properties. While it is generally believed that structural brain damage induced by METH results from oxidative stress, in this work we present data suggesting robust disruption of blood-brain and blood-spinal cord barriers during acute METH intoxication in rats. We demonstrate the relationships between METH-induced brain hyperthermia and widespread but structure-specific barrier leakage, acute glial cell activation, changes in brain water and ionic homeostasis, and structural damage of different types of cells in the brain and spinal cord. Therefore, METH-induced leakage of the blood-brain and blood-spinal cord barriers is a significant contributor to different types of functional and structural brain abnormalities that determine acute toxicity of this drug and possibly neurotoxicity during its chronic use.
Keywords: Brain edema, brain hyperthermia, cellular damage, methamphetamine, neurotoxicity, psychomotor stimulants, skin vasoconstriction.
CNS & Neurological Disorders - Drug Targets
Title:Breakdown of Blood-Brain and Blood-Spinal Cord Barriers During Acute Methamphetamine Intoxication: Role of Brain Temperature
Volume: 15 Issue: 9
Author(s): Eugene A. Kiyatkin and Hari S. Sharma
Affiliation:
Keywords: Brain edema, brain hyperthermia, cellular damage, methamphetamine, neurotoxicity, psychomotor stimulants, skin vasoconstriction.
Abstract: Methamphetamine (METH) is a powerful and often-abused stimulant with potent addictive and neurotoxic properties. While it is generally believed that structural brain damage induced by METH results from oxidative stress, in this work we present data suggesting robust disruption of blood-brain and blood-spinal cord barriers during acute METH intoxication in rats. We demonstrate the relationships between METH-induced brain hyperthermia and widespread but structure-specific barrier leakage, acute glial cell activation, changes in brain water and ionic homeostasis, and structural damage of different types of cells in the brain and spinal cord. Therefore, METH-induced leakage of the blood-brain and blood-spinal cord barriers is a significant contributor to different types of functional and structural brain abnormalities that determine acute toxicity of this drug and possibly neurotoxicity during its chronic use.
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Cite this article as:
Kiyatkin A. Eugene and Sharma S. Hari, Breakdown of Blood-Brain and Blood-Spinal Cord Barriers During Acute Methamphetamine Intoxication: Role of Brain Temperature, CNS & Neurological Disorders - Drug Targets 2016; 15 (9) . https://dx.doi.org/10.2174/1871527315666160920112445
DOI https://dx.doi.org/10.2174/1871527315666160920112445 |
Print ISSN 1871-5273 |
Publisher Name Bentham Science Publisher |
Online ISSN 1996-3181 |
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