Results 51 to 60 of about 143,741 (208)

Neurotransmitter‐Defined Degeneration Patterns in Sporadic and C9orf72‐Associated Amyotrophic Lateral Sclerosis: Predilection to GABAergic, Serotonergic, Opioid, Glutamatergic, Endocannabinoid, and Microglial Systems—Implications for Therapy Development

Annals of Neurology, EarlyView.
Objective Amyotrophic lateral sclerosis (ALS) has a markedly distinctive clinical and neuroradiological signature, with the preferential involvement of specific brain networks and the apparent sparing of others. The molecular underpinnings of the strikingly selective anatomical vulnerability have not been fully elucidated to date despite the potential ...
Marlene Tahedl, We Fong Siah, Jasmin Lope, Jennifer C. Hengeveld, Mark A. Doherty, Russell L. McLaughlin, Orla Hardiman, Ee Ling Tan, Alison Toomey, Jana Kleinerova, Peter Bede   +10 more
wiley   +1 more source

Subtype-Selective Peptide and Protein Neurotoxic Inhibitors of Nicotinic Acetylcholine Receptors Enhance Proliferation of Patient-Derived Glioblastoma Cell Lines

Toxins
Glioblastoma multiforme (GBM) is the most aggressive type of brain cancer, with a poor prognosis. GBM cells, which develop in the environment of neural tissue, often exploit neurotransmitters and their receptors to promote their own growth and invasion ...
Elena Gondarenko, Diana Mazur, Marina Masliakova, Yana Ryabukha, Igor Kasheverov, Yuri Utkin, Victor Tsetlin, Mikhail Shahparonov, Denis Kudryavtsev, Nadine Antipova   +9 more
doaj   +1 more source

Acetylcholine induces stem cell properties of gastric cancer cells of diffuse type

Tumor Biology, 2018
Gastric cancer is the third leading cause of cancer-related death worldwide, but the mechanisms of gastric carcinogenesis are not completely understood.
Phu Hung Nguyen, Yann Touchefeu, Tony Durand, Philippe Aubert, Emilie Duchalais, Stanislas Bruley des Varannes, Christine Varon, Michel Neunlist, Tamara Matysiak-Budnik   +8 more
doaj   +1 more source

Nicotinic filtering of sensory processing in auditory cortex

Frontiers in Behavioral Neuroscience, 2012
Although it has been known for decades that the drug nicotine can improve cognitive function, the nature of its effects and the underlying mechanisms are not well understood.
Raju eMetherate, lrakli eIntskirveli, Hideki D. Kawai   +2 more
doaj   +1 more source

Agonist efficiency links binding and gating in a nicotinic receptor

eLife, 2023
Receptors signal by switching between resting (C) and active (O) shapes (‘gating’) under the influence of agonists. The receptor’s maximum response depends on the difference in agonist binding energy, O minus C.
Dinesh C Indurthi, Anthony Auerbach
doaj   +1 more source

Partial agonists as therapeutic agents at neuronal nicotinic acetylcholine receptors.

, 2007
Improved understanding of how brain function is altered in neurodegenerative disease states, pain and conditions, such as schizophrenia and attention deficit disorder, has highlighted the role of nicotinic acetylcholine receptors (nAChRs) in these ...
Bertrand D, Hogg RC
core   +1 more source

Development of a nalmefene formulation suitable for a community‐use auto‐injector

British Journal of Clinical Pharmacology, EarlyView.
Aim Time to onset of reversal is critical when treating opioid‐induced respiratory depression and hypoxia. This study aimed to develop a formulation of the opioid antagonist nalmefene with an increased absorption rate and reduced time to onset of reversal following intramuscular administration. Methods Several absorption enhancers were screened in rats,
Alessandra Cipriano, Manjunath S. Shet, Hugh Huang, Ronnie Ortiz, Garth T. Whiteside, Glen Apseloff, Stephen C. Harris   +6 more
wiley   +1 more source

Expression of the α7 nicotinic acetylcholine receptor in human lung cells

Respiratory Research, 2005
Background We and others have shown that one of the mechanisms of growth regulation of small cell lung cancer cell lines and cultured pulmonary neuroendocrine cells is by the binding of agonists to the α7 neuronal nicotinic acetylcholine receptor.
Schuller Hildegard M, Dhar Madhu, Plummer Howard K   +2 more
doaj   +1 more source

Histamine and the mechanisms of nausea and vomiting: Translating the uncertain pharmacology of cyclizine

British Journal of Clinical Pharmacology, EarlyView.
Abstract Cyclizine is a long‐established, short‐acting drug, registered for preventing motion sickness, post‐operative nausea and vomiting (PONV) and ‘vomiting of known cause’. The latter is not defined but may include pregnancy and patients receiving palliative care, historically accepted without large, controlled trials.
Gareth J. Sanger, Paul L. R. Andrews
wiley   +1 more source

Conformational dynamics of a nicotinic receptor neurotransmitter site

eLife
Agonists enhance receptor activity by providing net-favorable binding energy to active over resting conformations, with efficiency (η) linking binding energy to gating.
Mrityunjay Singh, Dinesh C Indurthi, Lovika Mittal, Anthony Auerbach, Shailendra Asthana   +4 more
doaj   +1 more source