Activation of glutamatergic neurons in the organum vasculosum of the lamina terminalis induces thirst-driven sniffing

Bibliographic Details
Title: Activation of glutamatergic neurons in the organum vasculosum of the lamina terminalis induces thirst-driven sniffing
Authors: Wei He, Luo Shi, Ziteng Yue, Ke Zhao, Xiaoyi Wang, Kailin Wang, Xinyi Jing, Shangyu Bi, Tianjiao Deng, Xue Zhao, Xiaochen Tian, Xiangchen Ma, Yongqiang Chen, Fang Yuan, Sheng Wang
Source: Cell Reports, Vol 44, Iss 2, Pp 115254- (2025)
Publisher Information: Elsevier, 2025.
Publication Year: 2025
Collection: LCC:Biology (General)
Subject Terms: CP: Neuroscience, Biology (General), QH301-705.5
More Details: Summary: Sniffing is a specialized respiratory behavior that enables rodents to localize and track objects in their environment. The organum vasculosum of the lamina terminalis (OVLT) is critically involved in the regulation of thirst and water intake, yet its role in controlling thirst-driven exploratory sniffing behaviors remains unclear. This study demonstrates that hypertonic stimulation significantly increases sniffing and activates OVLT glutamatergic (OVLTGlut) neurons. Photostimulation of both OVLTGlut neurons and their axon terminals within the paraventricular nucleus of the hypothalamus (PVN) induces robust sniffing. Furthermore, ablation of PVN neurons projecting to the preBötzinger complex not only reduces the sniffing time induced by photostimulation of OVLTGlut neurons projecting to the PVN but also prolongs the drinking latency. These findings identify the OVLTGlut-PVN-preBötzinger complex circuit as a pivotal regulator of thirst-driven sniffing, providing insights into the neural mechanisms underlying thirst and exploratory behavior.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2211-1247
Relation: http://www.sciencedirect.com/science/article/pii/S2211124725000257; https://doaj.org/toc/2211-1247
DOI: 10.1016/j.celrep.2025.115254
Access URL: https://doaj.org/article/fbb0c552ed7c4ffaa20802dd9e242e17
Accession Number: edsdoj.fbb0c552ed7c4ffaa20802dd9e242e17
Database: Directory of Open Access Journals
More Details
ISSN:22111247
DOI:10.1016/j.celrep.2025.115254
Published in:Cell Reports
Language:English