Caracterización fitoquímica de un aceite destilado de Cannabis yoda y evaluación farmacológica en modelos de epilepsia en roedores

dc.contributor.advisorGuerrero Pabón, Mario Francisco
dc.contributor.advisorMartínez Ramírez, Jorge Ariel
dc.contributor.authorLancheros Sanabria, Andrés Ricardo
dc.contributor.researchgroupGrupo de Investigaciones en Farmacología Molecular (Farmol)spa
dc.contributor.researchgroupInvestigaciones Toxicológicasspa
dc.date.accessioned2023-08-08T16:17:54Z
dc.date.available2023-08-08T16:17:54Z
dc.date.issued2023-01-31
dc.descriptionilustraciones, diagramasspa
dc.description.abstractLa presente investigación quiere reconocer si es comparable el efecto anticonvulsivante del aceite destilado de Cannabis yoda en las crisis convulsivas tónico-clónicas, mioclónicas, y de bajo umbral frente a patrones reconocidos para cada crisis. Y determinar si el posible efecto protector es análogo, superior o inferior que el cannabidiol aislado (CBD). Lo anterior debido que la epilepsia tiene un alto impacto sobre la salud pública del mundo, especialmente en países en vía de desarrollo, y que las líneas de tratamiento tradicional para esta patología traen consigo efectos indeseados para el paciente que conllevan a un abandono de la terapia; por lo que se hace necesario aumentar los esfuerzos en la investigación de alternativas terapéuticas que prioricen la efectividad y seguridad en el control de las crisis convulsivas, como lo pueden ser los derivados de Cannabis. La investigación se realizó a través de modelos experimentales sobre modelo murino para las crisis tónico-clónicas inducidas por electrochoque máximo (MES), mioclónicas inducidas por pentilentetrazol (PTZ) y de bajo umbral o refractarias producidas por electrochoque a baja frecuencia, observando si los individuos presentaban las crisis características de cada modelo. Adicionalmente, se incluyó el modelo del eje rodante para determinar si las sustancias evaluadas afectan el desempeño motor del individuo. Asimismo, para reconocer los protagonistas del potencial efecto protector en cada crisis, se realizó la evaluación fitoquímica preliminar a través de técnicas cromatográficas de identificación y cuantificación. Los resultados mostraron que el aceite destilado no presentó una protección estadísticamente significativa en el modelo MES a pesar de proteger algunos individuos, caso contrario al modelo de las crisis de bajo umbral, donde si se pudo evidenciar un índice de protección estadísticamente significativo, versus la molécula aislada y el patrón, a todas las dosis evaluadas. Finalmente, en el modelo PTZ, se pudo observar una protección estadísticamente significativa atribuible principalmente al cannabidiol (CBD) en los intervalos de dosis 50 y 300 mg/Kg. Respecto al análisis cromatográfico, se pudo identificar en el aceite destilado fitocannabinoides y terpenos comunes de este género, cuantificando solamente CBD y THC con porcentajes de 15.6 y 1.3 respectivamente. Se pudo concluir que ninguna sustancia evaluada afectaba el desempeño motor de los individuos, que el aceite destilado y el CBD tienen un índice de protección para las crisis convulsivas evaluadas y que la mayor protección atribuida en el modelo de bajo umbral para el aceite destilado está correlacionada con la presencia de moléculas anexas como compuestos de tipo isoprenoide y cannabinoides adicionales que mediarian una mayor respuesta a través del efecto séquito y sus múltiples blancos bioquímicos relacionados con la epilepsia. (Texto tomado de la fuente)spa
dc.description.abstractThe present investigation aims to recognize whether the anticonvulsant effect of Cannabis yoda distillate oil on tonic-clonic, myoclonic, and low-threshold seizures is comparable to recognized patterns for each seizure. And to determine if the possible protective effect is analogous, superior, or inferior to isolated cannabidiol (CBD). This is due to the fact that epilepsy has a high impact on public health in the world, especially in developing countries. And that the traditional lines of treatment for this pathology bring with them undesired effects for the patient that lead to the abandonment of the therapy; therefore, it is necessary to increase efforts in the research of therapeutic alternatives that prioritize effectiveness and safety in the control of convulsive crises, such as Cannabis derivatives. The research was carried out through experimental models on murine model for tonic-clonic seizures induced by maximum electroshock (MES), myoclonic seizures induced by pentylenetetrazol (PTZ), and low threshold or refractory seizures produced by electroshock at low frequency, observing if the individuals presented the characteristic seizures of each model. Additionally, the rota-rod model was included to determine whether the substances evaluated affect the individual's motor performance. Likewise, in order to recognize the protagonists of the potential protective effect in each crisis, preliminary phytochemical evaluation was carried out through chromatographic techniques of identification and quantification. The results showed that the distilled oil did not present a statistically significant protection in the MES model in spite of protecting some individuals, contrary to the low-threshold crisis model, where a statistically significant protection index could be evidenced, versus the isolated molecule and the standard, at all the doses evaluated. Finally, in the PTZ model, statistically significant protection was observed, mainly attributable to cannabidiol (CBD) in the 50 and 300 mg/kg dose intervals. Regarding the chromatographic analysis, it was possible to identify in the distilled oil phytocannabinoids and terpenes common to this genus, quantifying only CBD and THC with percentages of 15.6 and 1.3, respectively. It could be concluded that no substance evaluated affected the motor performance of individuals, that the distilled oil and CBD have a protective index for the seizures evaluated, and that the greater protection attributed in the low threshold model for the distilled oil is correlated with the presence of annexed molecules such as isoprenoidtype compounds and additional cannabinoids that mediate a greater response through the entourage effect and its multiple biochemical targets related to epilepsyeng
dc.description.degreelevelMaestríaspa
dc.description.degreenameMagíster en Ciencias - Farmacologíaspa
dc.description.researchareaFarmacología experimental del Sistema Nervioso Centralspa
dc.format.extent87 páginasspa
dc.format.mimetypeapplication/pdfspa
dc.identifier.instnameUniversidad Nacional de Colombiaspa
dc.identifier.reponameRepositorio Institucional Universidad Nacional de Colombiaspa
dc.identifier.repourlhttps://repositorio.unal.edu.co/spa
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/84487
dc.language.isospaspa
dc.publisherUniversidad Nacional de Colombiaspa
dc.publisher.branchUniversidad Nacional de Colombia - Sede Bogotáspa
dc.publisher.facultyFacultad de Cienciasspa
dc.publisher.placeBogotá, Colombiaspa
dc.publisher.programBogotá - Ciencias - Maestría en Ciencias - Farmacologíaspa
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dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.licenseAtribución-NoComercial 4.0 Internacionalspa
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/spa
dc.subject.agrovocCannabis
dc.subject.ddc610 - Medicina y saludspa
dc.subject.lembACEITES MINERALESspa
dc.subject.lembMineral oilseng
dc.subject.proposalEpilepsiaspa
dc.subject.proposalConvulsiónspa
dc.subject.proposalCromatografiaspa
dc.subject.proposalCannabisspa
dc.subject.proposalCannabidiolspa
dc.subject.proposalPentilentetrazolspa
dc.subject.proposalEpilepsyeng
dc.subject.proposalSeizureeng
dc.subject.proposalChromatographyeng
dc.subject.proposalPentylenetetrazoleng
dc.subject.proposalCannabidioleng
dc.titleCaracterización fitoquímica de un aceite destilado de Cannabis yoda y evaluación farmacológica en modelos de epilepsia en roedoresspa
dc.title.translatedPhytochemical characterization of Cannabis yoda distilled oil and pharmacological evaluation in rodent models of epilepsyeng
dc.typeTrabajo de grado - Maestríaspa
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dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aaspa
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dcterms.audience.professionaldevelopmentInvestigadoresspa
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