Serotonergic Autoinhibition within Dorsal Raphe Nucleus Modulates Sodium Appetite

2013 ◽  
pp. 213-230 ◽  
Keyword(s):  
Dorsal Raphe Nucleus ◽  
Dorsal Raphe ◽  
Raphe Nucleus ◽  
Sodium Appetite ◽  
Dorsal Raphé

scholarly journals Effect of electrolytic lesion of the dorsal raphe nucleus on water intake and sodium appetite

2003 ◽  
Vol 36 (12) ◽  
pp. 1709-1716 ◽  
Author(s):  
E.L. Olivares ◽  
R.H. Costa-e-Sousa ◽  
H.R. Cavalcante-Lima ◽  
H.R.C. Lima ◽  
P.L. Cedraz-Mercez ◽  
...  
Keyword(s):  
Water Intake ◽  
Dorsal Raphe Nucleus ◽  
Dorsal Raphe ◽  
Raphe Nucleus ◽  
Electrolytic Lesion ◽  
Sodium Appetite ◽  
Dorsal Raphé

scholarly journals Chronic excitotoxic lesion of the dorsal raphe nucleus induces sodium appetite

2005 ◽  
Vol 38 (11) ◽  
pp. 1669-1675 ◽  
Author(s):  
H.R. Cavalcante-Lima ◽  
D. Badauê-Passos Jr. ◽  
W. de-Lucca Jr. ◽  
H.R.C. Lima ◽  
R.H. Costa-e-Sousa ◽  
...  
Keyword(s):  
Dorsal Raphe Nucleus ◽  
Dorsal Raphe ◽  
Raphe Nucleus ◽  
Sodium Appetite ◽  
Excitotoxic Lesion ◽  
Dorsal Raphé

Buspirone-induced changes in the serotonergic and non-serotonergic cells in the dorsal raphe nucleus of rats

2010 ◽  
Vol 473 (2) ◽  
pp. 136-140 ◽  
Author(s):  
Ali Jahanshahi ◽  
Lee Wei Lim ◽  
Harry W.M. Steinbusch ◽  
Veerle Visser-Vandewalle ◽  
Yasin Temel
Keyword(s):  
Dorsal Raphe Nucleus ◽  
Dorsal Raphe ◽  
Raphe Nucleus ◽  
Induced Changes ◽  
Dorsal Raphé

027 GABAergic Neurons in the Dorsal Raphe Nucleus Are under the Influence of GABAergic Inputs from the Nucleus Pontis Oralis

SLEEP ◽  
2021 ◽  
Vol 44 (Supplement_2) ◽  
pp. A12-A12
Author(s):  
Jianhua Zhang ◽  
Mingchu Xi ◽  
Simon Fung ◽  
Charles Tobin ◽  
Sharon Sampogna ◽  
...  
Keyword(s):  
Dorsal Raphe Nucleus ◽  
Dorsal Raphe ◽  
Gabaergic Neurons ◽  
Fluorescent Labeling ◽  
Raphe Nucleus ◽  
Gaba A ◽  
Adult Cats ◽  
Immunohistochemical Techniques ◽  
Fluorescence Immunohistochemistry ◽  
Dorsal Raphé

Abstract Introduction Our previous study has shown that there is a direct connection between GABAergic neurons in the nucleus pontis oralis (NPO) and neurons of the dorsal raphe nucleus (DR), providing a morphological basis for the hypothesis that GABAergic inhibitory processes in NPO play an important role in the generation and maintenance of wakefulness as well as active (REM) sleep through the interaction with neurons in the DR. However, the target of such a GABAergic projection from the NPO within the DR is unknown. In the present study, a double-fluorescent labeling technique was employed to examine the target of GABAergic inputs to the DR. Methods Adult cats were deeply anesthetized and perfused transcardially. Subsequently, the brainstem containing the DR was removed, postfixed and cut into 15 μm coronal sections with a Reichert-Jung cryostat. The sections were immunostained with antibodies against GABA-A or GABA-B receptors and GABA following the procedure of double fluorescence immunohistochemistry. Results Under fluorescence microscopy, a large number of neurons were labeled with antibodies against either GABA-A receptor or GABA-B receptor. In addition, neurons labeled with antibody against GABA were observed in the DR. With double fluorescence immunohistochemical techniques, some neurons labeled by anti-GABA antibody were also stained with antibodies against GABA-A or GABA-B receptors. Conclusion The expression of GABA-A or GABA-B receptors by GABAergic neurons in the DR indicates that GABAergic neurons in the DR receive GABAergic inputs. Our previous study has demonstrated that these GABAergic inputs are from the NPO. These data provide a morphological foundation to support our hypothesis that, during wakefulness, NPO GABAergic “Executive” neurons suppress “Second-Order” GABAergic neurons in the DR, which, in turn, activate (disinhibit) serotonergic wake-on neurons in this nucleus. Support (if any) NS092383

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