Anterior and posterior parts of the rat ventral tegmental area and the rostromedial tegmental nucleus receive topographically distinct afferents from the lateral habenular complex. 2017

Anja Petzel, and René Bernard, and Wolfram C Poller, and Rüdiger W Veh
Charité - Universitätsmedizin Berlin, Institut für Zell- und Neurobiologie, Berlin, Germany.

That activation of the reward system involves increased activity of dopaminergic (DA) neurons in the ventral tegmental area (VTA) is widely accepted. In contrast, the lateral habenular complex (LHb), which is known as the center of the anti-reward system, directly and indirectly inhibits DA neurons in the VTA. The VTA, however, is not a homogenous entity. Instead, it displays major functional differences between its anterior (aVTA) and posterior (pVTA) regions. It is not precisely known, whether habenular input to the aVTA, pVTA, and the newly recognized rostromedial tegmental nucleus (RMTg) are similarly or differently organized. Consequently, the present investigation addressed the connections between LHb and aVTA, pVTA, and RMTg using retrograde and anterograde tracing techniques in the rat. Our experiments disclosed strictly reciprocal and conspicuously focal interconnections between LHbM (LHbMPc/LHbMC) and PN, as well as between RLi and LHbLO. In addition, we found that LHb inputs to the aVTA are dorsoventrally ordered. Dorsal parts of the aVTA receive afferents from LHbL and LHbM, whereas ventral parts of the aVTA are preferentially targeted by the LHbM. LHb afferents to the pVTA are distinct from those to the RMTg, given that the RMTg is primarily innervated from the LHbL, whereas pVTA receives afferents from LHbM and LHbL. These data indicate the existence of two separate pathways from the LHb to the VTA, a direct and an indirect one, which may subserve distinct biological functions.

UI MeSH Term Description Entries
D008297 Male Males
D009434 Neural Pathways Neural tracts connecting one part of the nervous system with another. Neural Interconnections,Interconnection, Neural,Interconnections, Neural,Neural Interconnection,Neural Pathway,Pathway, Neural,Pathways, Neural
D000344 Afferent Pathways Nerve structures through which impulses are conducted from a peripheral part toward a nerve center. Afferent Pathway,Pathway, Afferent,Pathways, Afferent
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D017208 Rats, Wistar A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain. Wistar Rat,Rat, Wistar,Wistar Rats
D017557 Ventral Tegmental Area A region in the MESENCEPHALON which is dorsomedial to the SUBSTANTIA NIGRA and ventral to the RED NUCLEUS. The mesocortical and mesolimbic dopaminergic systems originate here, including an important projection to the NUCLEUS ACCUMBENS. Overactivity of the cells in this area has been suspected to contribute to the positive symptoms of SCHIZOPHRENIA. Area Tegmentalis Ventralis,Ventral Tegmental Area of Tsai,Area Tegmentalis Ventrali,Tegmental Area, Ventral,Tegmentalis Ventrali, Area,Tegmentalis Ventralis, Area
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus
D056347 Neuroanatomical Tract-Tracing Techniques Methods used to label and follow the course of NEURAL PATHWAYS by AXONAL TRANSPORT of injected NEURONAL TRACT-TRACERS. Neuroanatomical Tract-Tracing,Neuron Pathway Tracing,Neuronal Pathway Tracing,Neuroanatomical Tract Tracing,Neuroanatomical Tract Tracing Techniques,Neuroanatomical Tract-Tracing Technique,Neuroanatomical Tract-Tracings,Neuron Pathway Tracings,Neuronal Pathway Tracings,Pathway Tracing, Neuronal,Pathway Tracings, Neuronal,Technique, Neuroanatomical Tract-Tracing,Techniques, Neuroanatomical Tract-Tracing,Tracing, Neuronal Pathway,Tracings, Neuronal Pathway,Tract-Tracing Technique, Neuroanatomical,Tract-Tracing Techniques, Neuroanatomical,Tract-Tracing, Neuroanatomical,Tract-Tracings, Neuroanatomical
D019262 Habenula A small protuberance at the dorsal, posterior corner of the wall of the THIRD VENTRICLE, adjacent to the dorsal THALAMUS and PINEAL BODY. It contains the habenular nuclei and is a major part of the epithalamus. Commissura Habenularum,Habenula Complex,Habenular Commissure,Habenular Nuclei,Habenular Nucleus,Nucleus Habenularis,Commissura Habenularums,Commissure, Habenular,Commissures, Habenular,Complex, Habenula,Complices, Habenula,Habenula Complices,Habenular Commissures,Habenulari, Nucleus,Habenularis, Nucleus,Habenularum, Commissura,Habenularums, Commissura,Habenulas,Nuclei, Habenular,Nucleus Habenulari,Nucleus, Habenular

Related Publications

Anja Petzel, and René Bernard, and Wolfram C Poller, and Rüdiger W Veh
April 2012, The Journal of comparative neurology,
Anja Petzel, and René Bernard, and Wolfram C Poller, and Rüdiger W Veh
November 2015, The Journal of comparative neurology,
Anja Petzel, and René Bernard, and Wolfram C Poller, and Rüdiger W Veh
April 2024, Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology,
Anja Petzel, and René Bernard, and Wolfram C Poller, and Rüdiger W Veh
September 2013, The European journal of neuroscience,
Anja Petzel, and René Bernard, and Wolfram C Poller, and Rüdiger W Veh
May 2014, The Journal of comparative neurology,
Anja Petzel, and René Bernard, and Wolfram C Poller, and Rüdiger W Veh
May 2007, The Journal of neuroscience : the official journal of the Society for Neuroscience,
Anja Petzel, and René Bernard, and Wolfram C Poller, and Rüdiger W Veh
May 2012, The European journal of neuroscience,
Anja Petzel, and René Bernard, and Wolfram C Poller, and Rüdiger W Veh
April 2009, The Journal of comparative neurology,
Anja Petzel, and René Bernard, and Wolfram C Poller, and Rüdiger W Veh
August 2012, The Journal of comparative neurology,
Anja Petzel, and René Bernard, and Wolfram C Poller, and Rüdiger W Veh
April 2008, Neuroscience,
Copied contents to your clipboard!