Results 51 to 60 of about 21,014 (223)

Activation of α7 nicotinic acetylcholine receptor by nicotine selectively up-regulates cyclooxygenase-2 and prostaglandin E₂ in rat microglial cultures

Journal of Neuroinflammation, 2005
Background Nicotinic acetylcholine (Ach) receptors are ligand-gated pentameric ion channels whose main function is to transmit signals for the neurotransmitter Ach in peripheral and central nervous system.
Minghetti Luisa, Carnevale Daniela, Ajmone-Cat Maria, De Simone Roberta   +3 more
doaj   +1 more source

Energetic contributions to channel gating of residues in the muscle nicotinic receptor β1 subunit. [PDF]

PLoS ONE, 2013
In the pentameric ligand-gated ion channel family, transmitter binds in the extracellular domain and conformational changes result in channel opening in the transmembrane domain.
Gustav Akk, Megan Eaton, Ping Li, Steven Zheng, Joshua Lo, Joe Henry Steinbach   +5 more
doaj   +1 more source

Paternal Exposure to the Neonicotinoid Pesticide Clothianidin Alters Sperm MicroRNA Profiles in Mice and Intergenerationally Reduces Locomotor Activity in Male Offspring

Journal of Applied Toxicology, EarlyView.
ABSTRACT Accumulating evidence suggests that paternal environmental factors have epigenetic effects on sperm and influence offspring. Neonicotinoid pesticides (NNs), which are widely used around the world, are known to affect offspring phenotypes through maternal exposure in mice, but the effect of the paternal exposure remains unknown.
Makiko Ito, Tetsushi Hirano, Sarika Nunobiki, Ayano Yoshimoto, Yukako Hara, Yuya Ishida, Sakura Yonoichi, Youhei Mantani, Toshifumi Yokoyama, Yoshiaki Tabuchi, Yoshinori Ikenaka, Nobuhiko Hoshi   +11 more
wiley   +1 more source

Achieving maximal speed of solution exchange for patch clamp experiments. [PDF]

PLoS ONE, 2012
BACKGROUND: Resolving the kinetics of agonist binding events separately from the subsequent channel gating processes requires the ability of applying and removing the agonist before channel gating occurs.
Jerónimo Auzmendi, Darío Fernández Do Porto, Carla Pallavicini, Luciano Moffatt   +3 more
doaj   +1 more source

Activation of endplate nicotinic acetylcholine receptors by agonists [PDF]

Biochemical Pharmacology, 2015
The interaction of a small molecule made in one cell with a large receptor made in another is the signature event of cell signaling. Understanding the structure and energy changes associated with agonist activation is important for engineering drugs, receptors and synapses.
openaire   +2 more sources

From regulatory mechanisms to cutting‐edge applications: Research progress of ultrasound, electrical, magnetic, and optical stimulation in neural modulation

Journal of Intelligent Medicine, EarlyView.
Abstract In recent years, the clinical treatment and symptom management of neurological disorders have faced significant challenges due to the high complexity of the nervous system's structure and function. Against this backdrop, physical stimulation techniques have emerged as a vital complementary approach to traditional pharmacological treatments and
Wanying Li, Liqun Chen
wiley   +1 more source

An original potentiating mechanism revealed by the cryo-EM structures of the human α7 nicotinic receptor in complex with nanobodies

Nature Communications, 2023
The human α7 nicotinic receptor is a pentameric channel mediating cellular and neuronal communication. It has attracted considerable interest in designing ligands for the treatment of neurological and psychiatric disorders. To develop a novel class of α7
Marie S. Prevost, Nathalie Barilone, Gabrielle Dejean de la Bâtie, Stéphanie Pons, Gabriel Ayme, Patrick England, Marc Gielen, François Bontems, Gérard Pehau-Arnaudet, Uwe Maskos, Pierre Lafaye, Pierre-Jean Corringer   +11 more
doaj   +1 more source

When Fat Goes Astray: Your Liver and Pancreas Get Into Trouble

Portal Hypertension &Cirrhosis, EarlyView.
Metabolic dysfunction‐associated steatotic liver disease (MASLD) and intrapancreatic fat deposition (IPFD) are both common manifestations of ectopic fat accumulation. Although they share multiple risk factors, they also show notable differences in pathological features, standardization of diagnosis, and research maturity.
Yuying Chen, Li Ding, Shan Zhao, Weihong Wang, Jing Zhong, Qiang Yan   +5 more
wiley   +1 more source

Chrysin Mitigates Acetamiprid‐Induced Testicular Injury in Mice via Suppression of Endoplasmic Reticulum Stress and Inflammation

Environmental Toxicology, EarlyView.
ABSTRACT Acetamiprid (ACP) is a neonicotinoid pesticide that is extensively utilized for the management of insect populations, but its toxic effects on the male reproductive system have become a source of concern. Chrysin (CHR) is a natural flavone found in many plants and bee products, including honey and propolis.
Selim Demir, Nihal Turkmen Alemdar, Esin Yulug, Ali Kulaber, Elif Ayazoglu Demir, Nadire Sevdenur Erdogan, Ahmet Mentese, Yuksel Aliyazicioglu   +7 more
wiley   +1 more source

Minimal Structural Changes Determine Full and Partial Nicotinic Receptor Agonist Activity for Nicotine Analogues

Molecules, 2019
Neuronal α4β2 nicotinic acetylcholine receptors (nAChRs) are ligand-gated ion channels (LGIC) that have been implicated in nicotine addiction, reward, cognition, pain disorders, anxiety, and depression.
Juan Pablo Gonzalez-Gutierrez, Martin Hodar, Franco Viscarra, Pablo Paillali, Nicolás Guerra-Díaz, Hernán Pessoa-Mahana, Juan José Hernández-Morantes, Horacio Pérez-Sánchez, Isabel Bermúdez, Miguel Reyes-Parada, Patricio Iturriaga-Vásquez   +10 more
doaj   +1 more source