Browsing by Author "7f4e838f-a53d-45d9-801e-031516de9f76"
Now showing items 1-20 of 24
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Iturriaga-Vásquez, Patricio; Zapata-Torres, Gerald; Rezende, Marcos Caroli; Cassels Niven, Bruce (2004)The conformational preferences of a series of 1-benzyl-1,2,3,4- tetrahydroisoquinolines (norlaudanosine and coclaurine analogues) were investigated with the aid of their 1H NMR spectra and NOESY experiments, coupled with ...
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Lühr, Susan; Vilches Herrera, Marcelo; Fierro, Angélica; Ramsay, Rona R.; Edmondson, Dale E.; Reyes Parada, Miguel; Cassels Niven, Bruce; Iturriaga-Vásquez, Patricio (2010)2-Arylthiomorpholine and 2-arylthiomorpholin-5-one derivatives, designed as rigid and/or non-basic phenylethylamine analogues, were evaluated as rat and human monoamine oxidase inhibitors. Molecular docking provided insight ...
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Sotomayor Zárate, Ramón; Quiroz, Gabriel; Araya, Katherine A.; Abarca, Jorge; Ibáñez, María R.; Montecinos, Alejandro; Guajardo, Carlos; Núñez, Gabriel; Fierro, Angélica; Moya, Pablo R.; Iturriaga-Vásquez, Patricio; Gómez-Molina, Cristóbal; Gysling, Katia; Reyes Parada, Miguel (2012)4-Methylthioamphetamine (MTA) is a phenylisopropylamine derivative whose use has been associated with severe intoxications. MTA is usually regarded as a selective serotonin-releasing agent. Nevertheless, previous data have ...
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Reyes Parada, Miguel; Iturriaga Vásquez, Patricio; Cassels Niven, Bruce (Frontiers Media, 2020)Amphetamine and its derivatives exhibit a wide range of pharmacological activities, including psychostimulant, hallucinogenic, entactogenic, anorectic, or antidepressant effects. The mechanisms of action underlying these ...
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Mella Raipán, Jaime A.; Lagos, Carlos F.; Recabarren Gajardo, Gonzalo Iván; Espinosa Bustos, Christian; Romero Parra, Javier; Pessoa Mahana, Hernán; Iturriaga-Vásquez, Patricio; Pessoa Mahana, Carlos David (2013)A series of novel 2-pyridylbenzimidazole derivatives was rationally designed and synthesized based on our previous studies on benzimidazole 14, a CB1 agonist used as a template for optimization. In the present series, 21 ...
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Espinosa Bustos, Christian; Lagos, Carlos F.; Romero Parra, Javier; Zárate, Ana M.; Mella Raipán, Jaime A.; Pessoa Mahana, Hernán; Recabarren Gajardo, Gonzalo Iván; Iturriaga-Vásquez, Patricio; Tapia, Ricardo A.; Pessoa Mahana, Carlos David (Wiley-VCH Verlag, 2015)© 2015 Wiley-VCH Verlag GmbH & Co. KGaA. A series of N-acyl-2,5-dimethoxyphenyl-1H-benzimidazoles were designed based on a CoMFA model for cannabinoid receptor type 1 (CB1) ligands. Compounds were synthesized and radioligand ...
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Paris Pizarro, Irmgard; Pérez Pastene, Carolina; Cárdenas, Sergio; Iturriaga-Vásquez, Patricio; Muñoz, Patricia; Couve, Eduardo; Caviedes, Pablo; Segura Aguilar, Juan (Springer New York LLC, 2010)
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Quiroz, Gabriel; Guerra-Díaz, Nicolás; Iturriaga-Vásquez, Patricio; Rivera Meza, Mario; Quintanilla González, María Elena; Sotomayor Zárate, Ramón (Elsevier, 2018-09)Alcohol abuse is a worldwide health problem with high economic costs to health systems. Emerging evidence suggests that modulation of brain nicotinic acetylcholine receptors (nAChRs) may be a therapeutic target for alcohol ...
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Meza, Rodrigo C.; Ortiz, Fernando C.; Bravo, Eduardo; Iturriaga-Vásquez, Patricio; Eugenín, Jaime L.; Varas, Rodrigo (2012)The carotid bodies (CBs) are chemosensory organs that respond to hypoxemia with transmitter neurosecretion, leading to a respiratory reflex response. It has been proposed that acetylcholine is a key regulator of transmitter ...
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Hurtado Guzmán, Claudio; Iturriaga-Vásquez, Patricio; Zapata Torres, Gerald; Cassels Niven, Bruce (Sociedad Chilena de Quimica, 2004)Condensation of 4-methylthiobenzaldehyde with 1-nitropropane unexpectedly afforded separable amounts of both (E)- and (Z)-1-(4-methylthiophenyl)-2- nitrobutene. The 1H and 13C NMR spectra allowed the unequivocal assignment ...
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Iturriaga-Vásquez, Patricio; Carbone, Annalisa; García Beltrán, Olimpo; Livingstone, Phil D.; Biggin, Philip C.; Cassels Niven, Bruce; Wonnacott, Susan; Zapata Torres, Gerald; Bermudez, Isabel (American Society for Pharmacology and Experimental Therapy, 2010)The Erythrina alkaloids erysodine and dihydro-β-erythroidine (DHβE) are potent and selective competitive inhibitors of α4β2 nicotinic acetylcholine receptors (nAChRs), but little is known about the molecular determinants ...
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Reyes Parada, Miguel; Fierro, A.; Iturriaga-Vásquez, Patricio; Cassels Niven, Bruce (Bentham Science Publishers Ltd., 2004-11-25)The recent description of the crystal structures of rat MAO-A and human MAO-B provides an unprecedented framework to elucidate the mechanisms underlying the selective interactions between these proteins and their ligands. ...
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Hurtado Guzmán, Claudio; Fierro, Angélica; Iturriaga-Vásquez, Patricio; Sepúlveda Boza, Silvia; Cassels Niven, Bruce; Reyes Parada, Miguel (Taylor & Francis Ltd, 2003-03-10)(6)-4-Methylthioamphetamine (MTA) was resolved into its enantiomers, and a series of N-alkyl derivatives of the parent compound, as well as its a-ethyl analogue, were prepared. The monoamine oxidase (MAO) inhibitory properties ...
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Iturriaga-Vásquez, Patricio; Cassels Niven, Bruce; Ivorra, M. Dolores; D’Ocon, M. Pilar (Sociedad Chilena de Química, 2006)Benzyltetrahydroisoquinoline (BTHIQ) molecules are able to adopt widely differing conformations that depend on the presence or absence of N-substituents. To assess the possible role of BTHIQ conformation on the affinity ...
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Iturriaga-Vásquez, Patricio; Cassels Niven, Bruce; Ivorra, M. Dolores; D’Ocon, M. Pilar (Sociedad Chilena de Química, 2006-09)Benzyltetrahydroisoquinoline (BTHIQ) molecules are able to adopt widely differing conformations that depend on the presence or absence of N-substituents. To assess the possible role of BTHIQ conformation on the affinity ...
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Viscarra, Franco; González Gutiérrez, Juan; Esparza, Erica; Figueroa, Carla; Paillali, Pablo; Hödar Salazar, Martín; Céspedes, Camilo; Quiroz, Gabriel; Sotomayor Zárate, Ramón; Reyes Parada, Miguel; Bermúdez, Isabel; Iturriaga-Vásquez, Patricio (MDPI, 2020)Zebrafish is becoming a popular animal model in neuropharmacology and drug discovery, mainly due to its ease of handling and low costs involved in maintenance and experimental work. This animal displays a series of complex ...
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García Beltrán, Olimpo; Soto Delgado, Jorge; Iturriaga-Vásquez, Patricio; Areche, Carlos; Cassels Niven, Bruce (Sociedad Chilena de Quimica, 2012)The diene Erythrina alkaloids erysotrine (1), erysodine (2), erythraline (3), erytharbine (4), and erysotrine N-oxide (5), plus the hydroxylated dihydro derivative of 1, epierythratidine (6) were isolated from seeds of ...
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Méndez-Rojas, Claudio; Quiroz, Gabriel; Faúndez, Mario; Gallardo Garrido, Carlos Andrés; Pessoa Mahana, Carlos David; Chung, Hery; Gallardo Toledo, Eduardo; Saitz Barría, Claudio; Araya Maturana, Ramiro; Kogan Bocian, Marcelo; Zúñiga López, María C.; Iturriaga-Vásquez, Patricio; (Wiley-VCH Verlag, 2018)© 2018 Deutsche Pharmazeutische Gesellschaft With the purpose of expanding the structural variety of chemical compounds available as pharmacological tools for the treatment of Alzheimer's disease, we synthesized and evaluated ...
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Synthesis and Biological Screening of Novel Indolalkyl Arenes Targeting the Serotonine Transporter Ojeda Gómez, Claudia; Pessoa Mahana, Hernán; Iturriaga-Vásquez, Patricio; Pessoa Mahana, Carlos David; Recabarren Gajardo, Gonzalo Iván; Méndez Rojas, Claudio (Wiley, 2014)A series of functionalized indolylalkylarenes 3–16(a and b) were synthesized and their affinities for the serotonin transporter were investigated in vitro. Compounds 3–12(a and b) were obtained by nucleophilic substitution ...
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Pessoa Mahana, Hernán; Silva Matus, Paul Eduardo; Pessoa Mahana, Carlos David; Chung, Hery; Iturriaga-Vásquez, Patricio; Quiroz, Gabriel; Möller-Acuña, Patricia; Zapata Torres, Gerald; Saitz Barría, Claudio; Araya Maturana, Ramiro; Reyes Parada, Miguel (Wiley, 2017)A series of novel 3-indolylpropyl derivatives was synthesized and evaluated for their binding affinities at the serotonin-1A receptor subtype (5-HT1AR) and the 5-HT transporter (SERT). Compounds 11b and 14b exhibited the ...