Open Access<p>Role of Dopaminergic Receptors Within the Ventral Tegmental Area in Antinociception Induced by Chemical Stimulation of the Lateral Hypothalamus in an Animal Model of Orofacial Pain</p>
Author(s) -
Tina Matini,
Amir Haghparast,
Laleh Rezaee,
Sakineh Salehi,
Azita Tehranchi,
Abbas Haghparast
Publication year - 2020
Publication title -
journal of pain research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.888
H-Index - 49
ISSN - 1178-7090
DOI - 10.2147/jpr.s255250
Subject(s) - ventral tegmental area , carbachol , orofacial pain , endocrinology , lateral hypothalamus , dopamine , medicine , dopaminergic , sulpiride , dopamine receptor , stimulation , microinjection , tonic (physiology) , sch 23390 , pharmacology , radiology
The ventral tegmental area (VTA), as one of the classical components of the brain reward circuitry, shares large neural networks with the pain processing system. We previously showed the role of VTA dopamine receptors in modulation of lateral hypothalamus (LH)-induced antinociception in acute pain conditions. However, considering the fact that the neural systems involved in the mediation of tonic pain are not the same as those that mediate phasic pain. In the present study, we aimed to examine the role of intra-VTA dopamine receptors in LH-induced antinociceptive responses during tonic orofacial pain conditions.