Results 71 to 80 of about 235,344 (293)

Co‐activation of Selective Nicotinic Acetylcholine Receptor Subtypes Is Required for Neuroprotection against Alzheimer's Disease

Advanced Science, EarlyView.
ABSTRACT Beta‐amyloid peptide (Aβ)‐induced suppression of hippocampal GABAergic interneuron activity drives hyperexcitability, amyloid pathology, and cognitive impairment in Alzheimer's disease (AD), suggesting that enhancing hippocampal inhibition may be protective.
Rahmi Lee, Gayeon Kim, Ellison R. Black, Seonil Kim   +3 more
wiley   +1 more source

The effect of acute Lithium and AMI-193, a new 5HT2 antagonist, on Apomorphine-induced pecking in pigeon [PDF]

Acta Medica Iranica, 2002
Intramascular (IM) administration of apomorphine (a mixed D1/D2 dopamine receptors agonist 0.2-1.6 mg/kg) induced pecking, a stereotype behavior in pigeons in a dose- dependent manner. In this study the effect of lithium (Li+, 240 mg/kg, IM) and AMI-193 (
Bagheri T, Ejtemaei Mehr Sh, Shamshirgaran Sh   +2 more
doaj   +1 more source

Innovative Approach Reveals How Receptors Control G Protein State Equilibria

Advanced Science, EarlyView.
Using conformational specific trFRET biosensors of the Gi protein (depicted at the bottom), the authors show that receptor activation can not only release GDP from the inactive G protein, but can also release GTP from the activated G protein, leading to the reformation of the RG ternary complex.
Alexandre Bouyssou, Mélanie Da Silva, Julien Soulé, Ludovic Fabre, Laurent Lamarque, Rémy Sounier, Thierry Durroux, Sébastien Granier, Thomas Roux, Elodie Dupuis, Eric Trinquet, Philippe Rondard, Jean‐Philippe Pin   +12 more
wiley   +1 more source

Contemporary management of pain in cirrhosis: Toward precision therapy for pain

Hepatology, EarlyView., 2022
Abstract Chronic pain is highly prevalent in patients with cirrhosis and is associated with poor health‐related quality of life and poor functional status. However, there is limited guidance on appropriate pain management in this population, and pharmacologic treatment can be harmful, leading to adverse outcomes, such as gastrointestinal bleeding ...
Alexis Holman, Neehar Parikh, Dan J. Clauw, David A. Williams, Elliot B. Tapper   +4 more
wiley   +1 more source

SCTR–Expressing Astrocyte–Serotonergic Neuron Signaling Drives Sexual Dimorphism in Depression Through KAT7/H4ac–Foxc2 Epigenetic Axis in an AMPK‐Dependent Manner

Advanced Science, EarlyView.
Astrocytic SCTR modulates depressive‐related phenotypes via AMPKα1, whereas lowered Mt1 blunts Megalin‐dependent AMPKα2 signaling in serotonergic neurons. Diminished AMPKα2 hinders KAT7 nuclear translocation, curtails KAT7 occupancy and H4K8ac at the Foxc2 promoter, and represses Foxc2 transcription, revealing cell‐type‐specific AMPK‐linked epigenetic ...
Fantao Meng, Jing Liu, Juanjuan Dai, Min Wu, Wentao Wang, Mengdi Zhang, Shujun Jiang, Yifan Cao, Lihong Xu, Lin Du, Dan Wang, Di Zhao, Gaofeng Qin, Dong Wang, Wei Li, Chen Li   +15 more
wiley   +1 more source

EphB1 Receptor Blockade Augments Morphine Antinociception via Inhibiting GRK2‐Mediated µ‐Opioid Receptor Internalization

Advanced Science, EarlyView.
Administration of opioids activates ephrinB2‐EphB1 receptor signaling. Activated EphB1 receptors induce GRK2‐mediated phosphorylation of MOR at Ser375, which initiates the internalization of MOR and reduces opioid antinociception at the behavioral level. ABSTRACT Opioids are the primary treatment for severe pain in clinical practice.
Bo Peng, Xiaqing Lin, Hongyu Yao, Cheng Li, Huabao Liao, Yuexin Liu, Boxu Cao, Xue‑Jun Song   +7 more
wiley   +1 more source

Participation of cholinergic and adrenergic mechanisms in gastric reactions to exogenous serotonin infusion

RUDN Journal of Medicine, 2011
This study is dedicated to investigation of serotoninergic structures that activate motility of the stomach. Experiments were performed on 94 Wistar rats under general anesthesia, mechanical ventilation, bilateral vagotomy and transection of both ...
V I Torshin, V M Smirnov, D S Sveshnikov, A V Kuchuk, I A Yurasova   +4 more
doaj  

Gut Microbiota‐Derived Indole‐3‐Acetaldehyde Contributes to the Disease‐Alleviating Effects of Kurarinone in Experimental Autoimmune Encephalomyelitis

Advanced Science, EarlyView.
Kurarinone ameliorates EAE via the gut microbiota‐indole‐3‐acetaldehyde‐AhR axis. Kurarinone reshapes gut microbiota and increases Akkermansia muciniphila, which promotes intestinal indole‐3‐acetaldehyde production. Indole‐3‐acetaldehyde crosses the intestinal barrier, activates AhR in CD4+ T cells, upregulates SOCS1/3, inhibits JAK2 and STAT3/4 ...
Xinyan Han, Jiaqi Ding, Zonghao Pan, Weitai He, Xue Kang, Cong Zhao, Yi Li, Di Wu, Hongzeng Li, Kaixi Ren, Jiaji Lin, Jun Guo   +11 more
wiley   +1 more source

Serotonin syndrome: An often-neglected medical emergency

Journal of Family and Community Medicine
Optimum serotonin level in the serotonergic synapses of the central nervous system (CNS) is related to mood, behavior, and sleep. Serotonin syndrome (SS) is a rare yet very dangerous adverse effect resulting from increased serotonin in CNS. The diagnosis
Ahmed Badar
doaj   +1 more source

Blocking Honeybee Preference for Neonicotinoids by Interfering With Dopamine Signaling

Advanced Science, EarlyView.
Honeybees (Apis mellifera) paradoxically prefer nectar containing the harmful neonicotinoid thiamethoxam. This preference is associated with transient brain dopamine elevation during proboscis extension reflex (PER) responses and active feeding, and is reduced by the dopamine receptor antagonist fluphenazine.
Jing Li, Yuan Ge, Wangjiang Feng, David C. Lyon, Pingli Dai, Yong‐Jun Liu   +5 more
wiley   +1 more source