Effects of tetrahydroaminoacridine on M1 and M2 muscarine receptors
Tetrahydroaminoacridine (THA) has been reported to improve the memory of persons with Alzheimer's disease, but its mechanism of action is uncertain. We found that clinically effective concentrations, 0.03-0.3 microM, readily inhibit acetylcholinesterase and butyrylcholinesterase from rabbit hippocampal tissue in artificial cerebrospinal fluid (CSF) at ...
B D, Pearce, L T, Potter
openaire +2 more sources
Evaluation of preclinical antipsychotic models used to support first‐in‐human clinical trials
Abstract Schizophrenia is regarded as a complex and heterogeneous psychiatric disorder, characterised by diverse symptoms and comorbidities, which complicate both clinical management and drug development. Current pharmacological treatment, primarily based on dopamine D2 receptor antagonism or partial agonism, which has not markedly progressed since the
Thi Viet Ha Nguyen +2 more
wiley +1 more source
Inhibition of Connexin43 hemichannels impairs spatial short-term memory without affecting spatial working memory [PDF]
Astrocytes are active players in higher brain function as they can release gliotransmitters, which are essential for synaptic plasticity. Various mechanisms have been proposed for gliotransmission, including vesicular mechanisms as well as non-vesicular ...
Albertini, Giulia +5 more
core +2 more sources
Engineering of three-finger fold toxins creates ligands with original pharmacological profiles for muscarinic and adrenergic receptors. [PDF]
Protein engineering approaches are often a combination of rational design and directed evolution using display technologies. Here, we test "loop grafting," a rational design method, on three-finger fold proteins.
Carole Fruchart-Gaillard +8 more
doaj +1 more source
Lower density of calretinin‐immunopositive neurons in the putamen of subjects with schizophrenia
Recent neuroimaging and histological studies highlight the striatum as a key area involved in SCH, but the specific impairment of neuronal subtypes in subcortical structures is not fully understood. This study is the first detailed investigation of neuroanatomical changes in the putamen in SCH, specifically examining the density of calretinin ...
Paz Kelmer +4 more
wiley +1 more source
Cholinergic regulation of mood: from basic and clinical studies to emerging therapeutics. [PDF]
Mood disorders are highly prevalent and are the leading cause of disability worldwide. The neurobiological mechanisms underlying depression remain poorly understood, although theories regarding dysfunction within various neurotransmitter systems have ...
Dulawa, Stephanie C, Janowsky, David S
core
Recovery of hippocampal functions and modulation of muscarinic response by electroacupuncture in young diabetic rats [PDF]
The muscarinic receptor response to acetylcholine regulates the hippocampal-related learning, memory, neural plasticity and the production and processing of the pro-nerve growth factor (proNGF) by hippocampal cells.
Berretta, Erica +9 more
core +2 more sources
Glial cells in the heart: Implications for their roles in health and disease
Abstract figure legend Schematic representation of cardiac autonomic ganglia within epicardial fat pads (posterior heart surface shown), containing vagal postganglionic neuron cell bodies, associated fibres, and glia. These ganglia receive cholinergic input from vagal preganglionic neurons and adrenergic input from sympathetic postganglionic neurons ...
Svetlana Mastitskaya +2 more
wiley +1 more source
Atractylone exhibits diverse pharmacological effects, including anticancer and neuroprotection. A systematic review was conducted following PRISMA guidelines to analyze Atractylone. This study explores Atractylone's sources, biosynthesis, and therapeutic potential.
Hamza Elhrech +8 more
wiley +1 more source
Presynaptic M1 muscarinic cholinoceptors mediate inhibition of excitatory synaptic transmission in the hippocampus in vitro [PDF]
The effects of the cholinoceptor agonist, carbachol (CCh), were examined in the rat hippocampal slice preparation. Intracellular recordings from CA1 pyramidal neurones revealed that CCh (1–3 μM) inhibited excitatory postsynaptic responses evoked by ...
Sheridan, Robert D., Sutor, Bernd
core +1 more source

