Efectos de la inhalación de humo de tabaco en la morfología y la tasa de proliferación celular en las glándulas submandibulares de ratas Wistar

Autores/as

DOI:

https://doi.org/10.33448/rsd-v10i8.17327

Palabras clave:

Proliferación celular; Cigarrillo; KI-67; Fumador pasivo; Glándulas salivales; Glándula submandibular.

Resumen

El humo del cigarrillo compromete las glándulas salivales alterando la saliva. La cotinina es el biomarcador más eficaz para evaluar el consumo de tabaco y los fumadores pasivos se caracterizan por niveles de cotinina sérica superiores a 2,1 ng / ml. Este estudio tuvo como objetivo evaluar el efecto de la exposición al humo del cigarrillo en las glándulas submandibulares de ratas. Se analizó la morfología, las células proliferativas de los conductos intercalados (inmunohistoquímica para KI-67) y su correlación con los niveles séricos de cotinina. Las ratas Wistar se agruparon: control (C); inhalación de humo durante 30 días (T1) y 60 días (T2). Los datos fueron analizados con la prueba de homogeneidad de varianza de Levene, prueba de Spearman, ANOVA y postest de Tukey, con significancia p <0.05. La morfología mostró un parénquima conservado en C y células secretoras alteradas en T1 y T2. Hubo una reducción significativa en el número de células proliferativas [ANOVA, F = 4.726; d.f. = 2,26; p <0,05]: C vs T1 (p <0,05) y C vs T2 (p <0,05). Los niveles de cotinina sérica de T1 y T2 fueron significativamente más altos (p <0,05) que C. Hubo una correlación negativa significativa [ρ = -0,418, n = 27, p <0,05] entre los niveles de cotinina sérica y la tasa de proliferación celular. Estos resultados sugieren que Efectos de la inhalación de humo de tabaco tiene una disminución de la tasa de proliferación celular y una morfología alterada en las glándulas submandibulares de las ratas Wistar.

Biografía del autor/a

Lorraine Stephanie Hiss, Federal University of Triângulo Mineiro

Department, Institute of Natural and Biological Sciences, Federal University of Triângulo Mineiro, Uberaba, MG, Brazil

Anna Cecília Dias Maciel Carneiro, Federal University of Triângulo Mineiro

Structural Biology Department, Institute of Natural and Biological Sciences, Federal University of Triângulo Mineiro, Uberaba, MG, Brazil

Rodrigo César Rosa, Federal University of Triângulo Mineiro

Structural Biology Department, Institute of Natural and Biological Sciences, Federal University of Triângulo Mineiro, Uberaba, MG, Brazil

Adilha Misson Rua Micheletti, Federal University of Triângulo Mineiro

Pathology Department, Institute of Health Sciences, Federal University of Triângulo Mineiro, Uberaba, MG, Brazil

José Batista Volpon, University of São Paulo

Department of Biomechanics, Medicine and Rehabilitation, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil

Virginia Oliveira Crema, Federal University of Triângulo Mineiro

Structural Biology Department, Institute of Natural and Biological Sciences, Federal University of Triângulo Mineiro, Uberaba, MG, Brazil

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Publicado

12/07/2021

Cómo citar

HISS, L. S. .; CARNEIRO, A. C. D. M. .; ROSA, R. C. .; MICHELETTI, A. M. R. .; VOLPON, J. B. .; CREMA, V. O. Efectos de la inhalación de humo de tabaco en la morfología y la tasa de proliferación celular en las glándulas submandibulares de ratas Wistar. Research, Society and Development, [S. l.], v. 10, n. 8, p. e28510817327, 2021. DOI: 10.33448/rsd-v10i8.17327. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/17327. Acesso em: 2 jul. 2024.

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Sección

Ciencias de la salud