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| DOI | 10.1016/J.BIOORG.2024.107896 | ||||
| Año | 2024 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
This study presents the synthesis and characterization of a series of 13 novel acetamides. These were subjected to Ellman's assay to determine the efficacy of the AChE and BChE inhibitors. Finally, we report their antioxidant activity as an alternative approach for the search for drugs to treat AD. These studies revealed that compounds 1a-1k and 2l-2m were obtained in moderate yield. Four amides (1h, 1j, 1k, and 2l) were selective for one of the enzymes (BChE); thus, those that inhibited BChE were more active than the positive control (galantamine) and showed better IC50 values (3.30-5.03 mu M). The theoretical free binding energies calculated by MM-GBSA indicated that all inhibitors were more stable than rivastigmine, and the inhibition mechanisms involved the entire active site: peripheral anionic site, oxyanion hole, acyl-binding pockets, and catalytic site. We examined the cytotoxicity of compounds 1h, 1j, 1k, and 2l in human dermal cells and found that they did not exhibit any toxic effects under the tested conditions. Additionally, these compounds, which also inhibited BChE, displayed mixed inhibition and did not exhibit hemolytic effects on human erythrocytes. Furthermore, the ABTS and DPPH assays indicated that, although none of the compounds showed activity in the DPPH assay, the EC50 values for radical trapping by the ABTS method showed that compounds 1a, 1d, 1e, and 1g had EC50 values lower than 10 mu g/mL, indicating their strong radical scavenging capacity. We also report the crystal structures of compounds 1c, 1d, 1f, and 1g, which are found in monoclinic crystal systems.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Camargo-Ayala, Lorena | - |
Universidad de Talca - Chile
|
| 2 | Prent-Penaloza, Luis | Hombre |
Universidad Nacional Andrés Bello - Chile
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| 3 | Osorio, Edison | - |
Univ Ibague - Colombia
Universidad de Ibagué - Colombia |
| 4 | Camargo-Ayala, Paola Andrea | - |
Universidad de Talca - Chile
|
| 5 | JIMENEZ-AGUILA, CLAUDIO ANDRES | Hombre |
Universidad de Concepción - Chile
|
| 6 | ZUNIGA-ARBALTI, FELIPE ANDRES | Hombre |
Universidad de Concepción - Chile
|
| 7 | BRITO-BOBADILLA, IVAN LEANDRO | Hombre |
Universidad de Antofagasta - Chile
|
| 8 | Delgado, Gerzon E. | - |
Universidad de Antofagasta - Chile
Universidad de Los Andes, Chile - Venezuela Universidad De Los Andes Facultad de Ciencias - Venezuela |
| 9 | GUTIERREZ-GARCIA, MARIA GLORIA | Mujer |
Universidad de Talca - Chile
|
| 10 | Polo-Cuadrado, Efrain | - |
Universidad de Concepción - Chile
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| Fuente |
|---|
| FONDECYT |
| Fondo Nacional de Desarrollo Científico y Tecnológico |
| Universidad de Talca |
| FONDECYT post-doctoral fellowship |
| ANID National Doctorate Scholarship |
| Research Group of the Laboratory of Organic Synthesis and Biological Activity of the University of Talca |
| Agradecimiento |
|---|
| The authors acknowledge the Research Group of the Laboratory of Organic Synthesis and Biological Activity of the University of Talca, Fondecyt Project 1200531, and Fondecyt Post-Doctoral Fellowship No. 3220681, Fondecyt Project 3210529, ANID National Doctorate Scholarship 2019 Folio No 21190020 and 2021 Folio No 21220448. |
| The authors acknowledge the Research Group of the Laboratory of Organic Synthesis and Biological Activity of the University of Talca, Fondecyt Project 1200531, and Fondecyt Post-Doctoral Fellowship No. 3220681, Fondecyt Project 3210529, ANID National Doctorate Scholarship 2019 Folio N\u00B0 21190020 and 2021 Folio N\u00B0 21220448. |