scholarly journals An Antagonistic Axon-Dendrite Interplay Enables Efficient Neuronal Repair in the Adult Zebrafish Central Nervous System

2018 ◽  
Vol 56 (5) ◽  
pp. 3175-3192 ◽  
Author(s):  
An Beckers ◽  
Annelies Van Dyck ◽  
Ilse Bollaerts ◽  
Jessie Van houcke ◽  
Evy Lefevere ◽  
...  
Glia ◽  
2003 ◽  
Vol 41 (3) ◽  
pp. 301-317 ◽  
Author(s):  
J�rn Schweitzer ◽  
Thomas Becker ◽  
Catherina G. Becker ◽  
Melitta Schachner

2021 ◽  
Author(s):  
Antonio Wlisses da Silva ◽  
Maria Kueirislene A. Ferreira ◽  
Emanuela L. Rebouças ◽  
Francisco Rogenio S. Mendes ◽  
Atilano Lucas dos S. Moura ◽  
...  

Abstract Benzodiazepines are highly effective in combating anxiety; however, they have considerable adverse effects, so it is important to discover new safe anxiolytic agents. This study was designed to investigate the anxiolytic and anticonvulsant effect of natural product 2-hydroxy-3,4,6-trimethoxyacetophenone (HTMCX) and its possible mechanisms of action in adult zebrafish. The open field and light / dark tests (n = 6 animals/group) were used to assess anxiety and pentylenetetrazole (PTZ) as a seizure inducer. The 96-hour acute toxicity of HTMCX was also investigated. HTMCX (1, 3, and 10 mg / kg; v.o.) was not toxic and affected locomotor activity. The highest doses (3 and 10 mg / kg; v.o.) produced signs of anxiolytic action in the light / dark test, and this effect was abolished by the pizotifen (antagonist 5HTR1 and 5HTR2A / 2C), having the potential to form a complex in the same region of the site indicating that the anxiolytic effect via the serotonergic mechanism. However, the anxiolytic effect of HTMCX has not been abolished by flumazenil (antagonist GABARA), cyproheptadine (antagonist 5HTR2A), and granisetron (antagonist 5HTR3A / 3B). Therefore, HTMCX demonstrated an anxiolytic effect, suggesting that the 5HTR1 and 5HTR / 2C receptors may be involved in the pharmacological performance of this acetophenone in the central nervous system.


Glia ◽  
2015 ◽  
Vol 63 (8) ◽  
pp. 1406-1428 ◽  
Author(s):  
Emmanuel Than-Trong ◽  
Laure Bally-Cuif

2016 ◽  
Vol 21 (1) ◽  
pp. 41-53
Author(s):  
Sunil Bhattarai ◽  
Alicja Sochacka-Marlowe ◽  
Gerald Crutchfield ◽  
Ramisha Khan ◽  
Richard Londraville ◽  
...  

Zebrafish ◽  
2013 ◽  
Vol 10 (3) ◽  
pp. 376-388 ◽  
Author(s):  
Marcos M. Braga ◽  
Denis B. Rosemberg ◽  
Diogo L. de Oliveira ◽  
Cássio M. Loss ◽  
Sandro D. Córdova ◽  
...  

2021 ◽  
Author(s):  
Antonio Wlisses da Silva ◽  
Maria Kueirislene A. Ferreira ◽  
Emanuela L. Rebouças ◽  
Francisco Rogenio S. Mendes ◽  
Atilano Lucas dos S. Moura ◽  
...  

Abstract Benzodiazepines are highly effective in combating anxiety; however, they have considerable adverse effects, so it is important to discover new safe anxiolytic agents. This study was designed to investigate the anxiolytic and anticonvulsant effect of natural product 2-hydroxy-3,4,6-trimethoxyacetophenone (HTMCX) and its possible mechanisms of action in adult zebrafish. The open field and light / dark tests (n = 6 animals/group) were used to assess anxiety and pentylenetetrazole (PTZ) as a seizure inducer. The 96-hour acute toxicity of HTMCX was also investigated. HTMCX (1, 3, and 10 mg / Kg; v.o.) was not toxic and affected locomotor activity. The highest doses (3 and 10 mg / Kg; v.o.) produced signs of anxiolytic action in the light / dark test, and this effect was abolished by the pizotifen (antagonist 5HTR1 and 5HTR2A / 2C), having the potential to form a complex in the same region of the site indicating that the anxiolytic effect via the serotonergic mechanism. However, the anxiolytic effect of HTMCX has not been abolished by flumazenil (antagonist GABARA), cyproheptadine (antagonist 5HTR2A), and granisetron (antagonist 5HTR3A / 3B). Therefore, HTMCX demonstrated an anxiolytic effect, suggesting that the 5HTR1 and 5HTR / 2C receptors may be involved in the pharmacological performance of this acetophenone in the central nervous system.


2019 ◽  
Vol 42 ◽  
Author(s):  
Kevin B. Clark

Abstract Some neurotropic enteroviruses hijack Trojan horse/raft commensal gut bacteria to render devastating biomimicking cryptic attacks on human/animal hosts. Such virus-microbe interactions manipulate hosts’ gut-brain axes with accompanying infection-cycle-optimizing central nervous system (CNS) disturbances, including severe neurodevelopmental, neuromotor, and neuropsychiatric conditions. Co-opted bacteria thus indirectly influence host health, development, behavior, and mind as possible “fair-weather-friend” symbionts, switching from commensal to context-dependent pathogen-like strategies benefiting gut-bacteria fitness.


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