scholarly journals Morphine exposure alters Fos expression in a sex‐, age‐, and brain region‐specific manner during adolescence

2021 ◽  
Author(s):  
C. Figueroa ◽  
H. Yang ◽  
J. DiSpirito ◽  
J. R. Bourgeois ◽  
G. Kalyanasundaram ◽  
...  
Keyword(s):  
Brain Region ◽  
Specific Manner ◽  
Fos Expression

Gonadal steroids modulated hypocretin/orexin type-1 receptor expression in a brain region, sex and daytime specific manner

2009 ◽  
Vol 158 (1-3) ◽  
pp. 121-126 ◽  
Author(s):  
Patricia Silveyra ◽  
Natalia I. Cataldi ◽  
Victoria Lux-Lantos ◽  
Carlos Libertun
Keyword(s):  
Brain Region ◽  
Receptor Expression ◽  
Gonadal Steroids ◽  
Specific Manner

scholarly journals Sudden cessation of fluoxetine before alcohol drinking reinstatement alters microglial morphology and TLR4/inflammatory neuroadaptation in the rat brain

2021 ◽  
Author(s):  
Jesús Aranda ◽  
María del Mar Fernández-Arjona ◽  
Francisco Alén ◽  
Patricia Rivera ◽  
Leticia Rubio ◽  
...  
Keyword(s):  
Fractal Dimension ◽  
Alcohol Drinking ◽  
Brain Region ◽  
Selective Serotonin Reuptake Inhibitors ◽  
Dorsal Hippocampus ◽  
Cell Area ◽  
Self Administration ◽  
Spatial Complexity ◽  
Specific Manner ◽  
Microglial Morphology

AbstractPreclinical studies on the effects of abrupt cessation of selective serotonin reuptake inhibitors (SSRIs), a medication often prescribed in alcohol use disorder (AUD) patients with depression, results in alcohol consumption escalation after resuming drinking. However, a potential neuroinflammatory component on this escalation remains unexplored despite the immunomodulatory role of serotonin. Here, we utilized a rat model of 14-daily administration of the SSRI fluoxetine (10 mg/kg/day) along alcohol self-administration deprivation to study the effects of fluoxetine cessation on neuroinflammation after resuming alcohol drinking. Microglial morphology and inflammatory gene expression were analyzed in prelimbic cortex, striatum, basolateral amygdala and dorsal hippocampus. Results indicated that alcohol drinking reinstatement increased microglial IBA1 immunoreactivity and altered morphometric features of activated microglia (fractal dimension, lacunarity, density, roughness, and cell area, perimeter and circularity). Despite alcohol reinstatement, fluoxetine cessation modified microglial morphology in a brain region-specific manner, resulting in hyper-ramified (spatial complexity of branching), reactive (lower heterogeneity and circularity)-like microglia. We also found that microglial cell area correlated with changes in mRNA expression of chemokines (Cx3cl1/fractalkine, Cxcl12/SDF1α, Ccl2/MCP1), cytokines (IL1β, IL6, IL10) and the innate immune toll-like receptor 4 (TLR4) in dorsal hippocampus. Specifically, TLR4 correlated with microglial spatial complexity assessed by fractal dimension in striatum, suggesting a role in process branching. These findings suggest that alcohol drinking reinstatement after fluoxetine treatment cessation disturbs microglial morphology and reactive phenotype associated with a TLR4/inflammatory response to alcohol in a brain region-specific manner, facts that might contribute to alcohol-induced damage through the promotion of escalation of alcohol drinking behavior.

scholarly journals Author response: Cortical ChAT+ neurons co-transmit acetylcholine and GABA in a target- and brain-region-specific manner

2020 ◽  
Author(s):  
Adam J Granger ◽  
Wengang Wang ◽  
Keiramarie Robertson ◽  
Mahmoud El-Rifai ◽  
Andrea F Zanello ◽  
...  
Keyword(s):  
Brain Region ◽  
Author Response ◽  
Specific Manner
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