2020
DOI: 10.7705/biomedica.4771
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Expresión de alfa sinucleína en sangre y su relación con el estreñimiento crónico en población residente en Bogotá, D.C., con problemas de consumo de alcohol

Abstract: Introducción. El consumo excesivo de alcohol resulta en neuroadaptación, neurodegeneración y expresión diferencial de numerosos genes.Objetivo. Determinar la relación entre la expresión del gen de la alfa sinucleína (SNCA) en sangre, las variantes de nucleótido único (Single Nucleotide Variant, SNV) en su región promotora y el estreñimiento crónico en personas con problemas de consumo de alcohol.Materiales y métodos. La muestra estuvo conformada por 35 controles y 27 casos, seleccionados según el puntaje obten… Show more

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“…The Ct of the tested gene and the reference gene in each sample were directly compared, and then the ∆Ct of the samples was measured. We chose the GADPH (glyceraldehyde 3 phosphate dehydrogenase) gene as the most appropriate reference for this type of experimental design, and the interplate calibrator sample was a mixture of equal proportions of controls and cases cDNA with a concentration of genetic material of 1 ng/uL (Bustin et al, 2009;Martínez-Rodríguez and Rey-Buitrago, 2020;Vargas Hernández and Rey Buitrago, 2020). For calculating the relative transcription (Roche, 2016), the following equation was used: Expression Rate= ET(CtTCal-CtT) /ER(CtRCal-CtR) which corresponded to the calculation of relative transcription measures using a reference gene, where ET was the efficiency of amplification of the target gene; ER was the reference gene amplification efficiency; CtT was the quantification cycle of the target gene; CtR was the reference gene quantification cycle; Cal: interplate calibrator sample.…”
Section: Quantitative Polymer Chain Reaction-qpcrmentioning
confidence: 99%
“…The Ct of the tested gene and the reference gene in each sample were directly compared, and then the ∆Ct of the samples was measured. We chose the GADPH (glyceraldehyde 3 phosphate dehydrogenase) gene as the most appropriate reference for this type of experimental design, and the interplate calibrator sample was a mixture of equal proportions of controls and cases cDNA with a concentration of genetic material of 1 ng/uL (Bustin et al, 2009;Martínez-Rodríguez and Rey-Buitrago, 2020;Vargas Hernández and Rey Buitrago, 2020). For calculating the relative transcription (Roche, 2016), the following equation was used: Expression Rate= ET(CtTCal-CtT) /ER(CtRCal-CtR) which corresponded to the calculation of relative transcription measures using a reference gene, where ET was the efficiency of amplification of the target gene; ER was the reference gene amplification efficiency; CtT was the quantification cycle of the target gene; CtR was the reference gene quantification cycle; Cal: interplate calibrator sample.…”
Section: Quantitative Polymer Chain Reaction-qpcrmentioning
confidence: 99%