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RetroCaptioner: beyond attention in end-to-end retrosynthesis transformer via contrastively captioned learnable graph representation.
Bioinformatics
September 2024
Computer Science and Engineering, Central South University, Changsha, 410083, China.
Motivation: Retrosynthesis identifies available precursor molecules for various and novel compounds. With the advancements and practicality of language models, Transformer-based models have increasingly been used to automate this process. However, many existing methods struggle to efficiently capture reaction transformation information, limiting the accuracy and applicability of their predictions.
View Article and Find Full Text PDFIn Silico Drug Repurposing Framework Predicts Repaglinide, Agomelatine and Protokylol as TRPV1 Modulators with Analgesic Activity.
Pharmaceutics
November 2022
Faculty of Pharmacy, "Carol Davila" University of Medicine and Pharmacy, Traian Vuia 6, 020956 Bucharest, Romania.
Pain is one of the most common symptoms experienced by patients. The use of current analgesics is limited by low efficacy and important side effects. Transient receptor potential vanilloid-1 (TRPV1) is a non-selective cation channel, activated by capsaicin, heat, low pH or pro-inflammatory agents.
View Article and Find Full Text PDFThe pharmacological and binding properties of four beta-adrenomimetic drugs with N-alkyl substitutions (isoprenaline, terbutaline, salbutamol and soterenol) were compared with those of four corresponding drugs with N-aralkyl substitutions (protokylol, ME 506, salmefamol and zinterol). BD-40 A, a very powerful beta 2-agonist with a related chemical structure, was also included in this study. The beta 1- and beta 2-activities of these drugs were determined on guinea-pig atria and trachea, their alpha-adrenolytic activity was measured on rat aorta and their affinities (Ki) for alpha 1- and alpha 2-adrenoceptors on rat cortical membranes were assessed using [3H]prazosin and [3H]yohimbine.
View Article and Find Full Text PDFThe stimulation of adenylate cyclase by dopamine and various beta-adrenergic agonists has been investigated in homogenates from 3 areas of cat brain: the cerebral cortex, cerebellum and hippocampus. The purpose of the study was to determine whether the beta-arenergic receptors coupled to adenylate cyclase could be classified as either beta 1 and beta 2 subtypes in the different regions studied. The stimulation of adenylate cyclase by the beta-adrenergic agonist, (-)isoproterenol (5 X 10(-6) M), was completely blocked by the specific beta-adrenergic antagonist, (p)alprenolol (1-(-5) M), but not by the dopaminergic antagonist, fluphenazine (10(-5) M), whereas the stimulation of adenylate cyclase by (-)epinephrine (10(-4) M) was blocked to varying extents by these two drugs in each of the 3 regions studied.
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