Results: 28

Folate and vitamin B12 related to homocysteine and DNA damage in female university students

Background and Objectives: It is not clear whether the increase in nutrition students’ knowledge is associated with healthier eating behavior and fewer micronutrient deficiencies that can cause DNA damage. Deficiency in some vitamins can be a risk factor for increased homocysteine (Hcy) levels, a marke...

Ensayo del cometa como bioindicador de inestabilidad genómica en pacientes diabéticos hemodializados
Comet assay as a bioindicator of genomic instability in hemodialysis diabetic patients

Introducción: Procesos como la mutagénesis, la carcinogénesis y la teratogénesis son producto de la interacción de agentes de origen endógeno como exógeno que interactúan con la molécula de ADN en forma crónica produciendo rupturas en la doble hélice, y en cromosomas completos resultando en la...

Thrombolysis, clotting, and genotoxic activities modulated by essential oils extracted from Lippia alba

Abstract The composition and pharmacological properties of Lippia alba (Mill.) (L. alba) (Verbenaceae) flower and leaf essential oils (EO) were determined in this study. The major constituents in the flower EO were geranial (49.83%) and neral (32.75%), and in the leaf EO were geranial (38.06%), neral (31...

Evaluation of the Genotoxicity of Endodontic Materials for Deciduous Teeth Using the Comet Assay

ABSTRACT Objective: To evaluate genotoxicity of zinc oxide, P. A. calcium hydroxide, mineral trioxide aggregate and an iodoform paste using comet assay on human lymphocytes. Material and Methods: Two positive controls were used: methyl-methanesulfonate for the P.A. calcium hydroxide and mineral trioxid...

Modified comet assay with Giemsa staining: a suitable method for assessing genotoxicity in rats

The present study tested a comet assay that was modified for compatibility with Giemsa staining to assess the drug genotoxicity in the peripheral blood of rats. We analysed the peripheral blood of 16 female Wistar rats (N=8 rats/group) from a control group and from a group that was treated with an intrap...

Quantification of DNA Damage in Different Tissues in Rats with Heart Failure

Arq. bras. cardiol; 114 (2), 2020
Abstract Background: Chronic heart failure (CHF) is a complex syndrome which comprises structural and functional alterations in the heart in maintaining the adequate blood demand to all tissues. Few investigations sought to evaluate oxidative DNA damage in CHF. Objective: To quantify the DNA damage usi...

Anotação e caracterização de novos transcritos expressos no adenocarcinoma de pâncreas: RNAS não-codificadores longos associados a fenótipos tumorais e clínicos e formas alternativas de splicing associados a fenótipos tumorais e clínicos

O câncer de pâncreas (PC) é uma das doenças mais devastadoras com o pior resultado de sobrevivência quando comparada com outros tipos de câncer. É apontado como o décimo câncer mais comum e a quarta causamortis por câncer, projetando-se para ser a segunda até 2030 nos Estados Unidos e na Alema...

Evaluación del daño oxidativo y por metilación del ADN de pintores expuestos ocupacionalmente a solventes orgánicos y pintura

Biomédica (Bogotá); 39 (3), 2019
Resumen Introducción. La exposición a solventes orgánicos y pinturas se ha asociado con efectos genotóxicos y mayor riesgo de neoplasias. Sin embargo, aún no se ha caracterizado bien el tipo de daño que esta exposición induce en el ADN humano, ni los mecanismos por los cuales se genera. Uno de lo...

DNA damage in buccal cells in oral PMDs and malignant disorders by comet assay: a comparison with blood leukocytes

Braz. j. oral sci; 18 (), 2019
Aim: DNA damage associated with Oral Squamous Cell Carcinoma (OSCC) and potentially malignant disorders (PMDs) is produced due to carcinogenic agents or increased oxidative stress. Comet assay can assist in early detection and evaluation of the amount of DNA damage; lymphocytesare the most commonly used ...

Daño en el ADN de linfocitos humanos por efecto de cloroquina

RESUMEN El objetivo del estudio fue evaluar el efecto de cloroquina (CQ) en linfocitos humanos a través del ensayo cometa. Los linfocitos fueron aislados de muestras de sangre periférica obtenidas de tres donantes sanos, no fumadores de 24 a 30 años. Los linfocitos aislados fueron expuestos durante un...