Results 61 to 70 of about 126,927 (355)

Hungry for Knowledge: Octopamine Signaling Regulates Hunger‐Enhanced Olfactory Learning

Advanced Science, EarlyView.
Researchers demonstrate that hunger state facilitates both aversive and appetitive olfactory learning. Two distinct octopamine signaling pathways are involved in aversive or appetitive memory formation in the hunger state. And, hunger state also facilitates the formation of both types of memories via an evolutionarily conserved norepinephrine (the ...
Huijuan Zhao, Guiyuan Shi, Ruixue Qin, Yinghao Sun, Wenbo Guo, Ruixia Shi, Minxian Peng, Jingxuan Yang, Jianjian Zhao, Qiuhan Liu, Jun Xiao, Ke Zhang, Qiang Liu, Wenxing Yang, He Liu   +14 more
wiley   +1 more source

Histamine upregulates the expression of histamine receptors and increases the neuroprotective effect of astrocytes

Journal of Neuroinflammation, 2018
Background Astrocytes have attracted increasing attention over recent decades for their role in neuroinflammation. Histamine, a major aminergic brain neurotransmitter, has an important influence on the main activities of astrocytes, such as ion ...
Jiawen Xu, Xiang Zhang, Qingqing Qian, Yiwei Wang, Hongquan Dong, Nana Li, Yanning Qian, Wenjie Jin   +7 more
doaj   +1 more source

Stromal Cell‐Mast Cell Communication Orchestrates Anti‐Viral Immunity in the Meninges

Advanced Science, EarlyView.
This study delineates the spatial distribution and postnatal maturation of meningeal mast cells and uncovers their essential role in antiviral immunity. Using genetic models, mast cells are shown to promote CD8⁺ T cell infiltration and viral clearance via IL‐33 receptor signaling and synergistic activation by IL‐33 and ATP from infected stromal cells ...
Qingqing Li, Weijia Chen, Mengxue Sun, Xinbo Ni, Qishan Ran, Xiaoyu Hu, Fang Cao, Wenwen Zeng   +7 more
wiley   +1 more source

Uncovering the Lipid Interface in Neurotransmission: Single Molecule Measurements of Neurotransmitters Interacting with Membranes Reveal Species Dependent Membrane Binding

Advanced Science, EarlyView.
Using single‐molecule whispering gallery mode sensors, neurotransmitter‐specific membrane binding signatures are measured that reveal intrinsically distinct interaction kinetics and orientations on a lipid membrane. Abstract Neurotransmitters (NTs) have traditionally been understood to act via aqueous‐phase receptor binding, but growing evidence ...
Thomas L. Derrien, Aneeth Kakkanattu Arunkumar, Rosalind Cross, Emilie Sunnucks, Frank Vollmer   +4 more
wiley   +1 more source

Structural insights into ligand recognition and G protein preferences across histamine receptors

Communications Biology
Histamine exerts critical physiological roles by activating four receptor subtypes, each exhibiting a specific G protein preference. Among these, the histamine H4 receptor (H4R) modulates chemotaxis and interferon production through Gi protein activation,
Yuma Matsuzaki, Fumiya K. Sano, Hidetaka S. Oshima, Hiroaki Akasaka, Kazuhiro Kobayashi, Tatsuki Tanaka, Yuzuru Itoh, Wataru Shihoya, Yoshiaki Kise, Tsukasa Kusakizako, Asuka Inoue, Osamu Nureki   +11 more
doaj   +1 more source

Potential immunological consequences of pharmacological suppression of gastric acid production in patients with multiple sclerosis

BMC Medicine, 2012
Corticosteroids are standard treatment for patients with multiple sclerosis experiencing acute relapse. Because dyspeptic pain is a common side effect of this intervention, patients can be given a histamine receptor-2 antagonist, proton pump inhibitor or
Biswas Sangita, Benedict Stephen H, Lynch Sharon G, LeVine Steven M   +3 more
doaj   +1 more source

Identification and characterization of ZEL-H16 as a novel agonist of the histamine H3 receptor. [PDF]

PLoS ONE, 2012
The histamine H3 receptor (H3R) has been recognized as a promising target for the treatment of various central and peripheral nervous system diseases.
Ying Shi, Rong Sheng, Tingting Zhong, Yu Xu, Xiaopan Chen, Dong Yang, Yi Sun, Fenyan Yang, Yongzhou Hu, Naiming Zhou   +9 more
doaj   +1 more source

A receptor-based analysis of local ecosystems in the human brain. [PDF]

, 2017
BackgroundAs a complex system, the brain is a self-organizing entity that depends on local interactions among cells. Its regions (anatomically defined nuclei and areas) can be conceptualized as cellular ecosystems, but the similarity of their functional ...
Janušonis, Skirmantas
core   +1 more source

Ursolic Acid Alleviates Orchitis via Modulating Ferroptosis in Peritubular Myoid Cells of Testis

Animal Research and One Health, EarlyView.
Ursolic acid modulates key ferroptosis‐related pathways in the peritubular myoid cells of the testis in forest musk deer. ABSTRACT Chronic stress adversely affects reproductive health, increasing susceptibility to pathologies such as orchitis. Additionally, the maintenance of iron homeostasis is essential for preserving the function of the testicles ...
Yang Wang, Tianqi Jin, Zexin Chen, Ye Gong, Qimin Liu, Zifang Wu, Heran Cao, Yan Li, Yuyan Liu, Tianhao Yang, Zhihong Jiang, Wuzi Dong   +11 more
wiley   +1 more source

Calcium puffs are generic InsP₃-activated elementary calcium signals and are downregulated by prolonged hormonal stimulation to inhibit cellular calcium responses [PDF]

, 2001
Elementary Ca2+ signals, such as "Ca2+ puffs", which arise from the activation of inositol 1,4,5-trisphosphate receptors, are building blocks for local and global Ca2+ signalling.
Berridge, Michael J., Bootman, Martin D., De Smedt, Humbert, de Smet, Patrick, Holmes, Andrew, Lipp, Peter, Missiaen, Ludwig, Parys, Jan B., Thomas, David, Thuring, Jan, Tovey, Stephen C., Young, Kenneth W.   +11 more
core