Análisis isotópico en dientes de brasileños contemporáneos con dieta y geolocalización conocidas y su valor forense para la identificación humana

Autores/as

DOI:

https://doi.org/10.33448/rsd-v10i12.20243

Palabras clave:

Identificación humana; Isótopos estables; Isótopos de estroncio; Dieta; Localización geográfica; Antropología Forense.

Resumen

Los datos dentales pueden proporcionar información valiosa sobre la vida de una persona, incluida la edad, la salud, los signos de violencia, la ascendencia, la dieta, las modificaciones intencionales y el origen geográfico. Esta información se puede detallar más mediante la estimación de la dieta y la movilidad residencial, proporcionada por el análisis isotópico. El uso de datos isotópicos en la población moderna está estrechamente relacionado con el origen diverso de los alimentos, por lo que requiere una base de datos actualizada y específica de la ubicación. En este estudio, analizamos la proporción de isótopos de estroncio, carbono y nitrógeno en el colágeno de la dentina y el esmalte del tercer molar de individuos de tres grandes ciudades de Brasil. Además de los datos isotópicos, también se recopilaron datos sobre hábitos alimentarios para el desarrollo de modelos para ser aplicados en estudios forenses en territorio brasileño. Los resultados mostraron que el valor forense de la estimación del lugar de origen basado en los niveles de 87Sr / 86Sr se reduce en estas muestras altamente urbanizadas. Entre los valores atípicos, la mayoría de las personas son mayores que el promedio (25,1) o consumieron agua de pozo en la infancia. La dieta de la muestra tiene una presencia robusta de C4 y niveles tróficos medios relacionados con la alta frecuencia de pollo, carne y productos lácteos en la dieta declarada, también compatible con el alto consumo de azúcar, arroz y frijoles en el cultivo local. Los individuos con dietas especiales, por elección o necesidad terapéutica, eran posibles valores atípicos entre el grupo. Los resultados también contribuyen a la base de datos internacional de isótopos de tejidos humanos, contribuyendo a la identificación humana de brasileños o extranjeros con firmas isotópicas distintas.

Citas

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Publicado

19/09/2021

Cómo citar

TINOCO, R. L. R.; BASTOS, M. Q. R. .; MACHADO, C. E. P. .; SANTOS, R. V. .; RODRIGUES-CARVALHO, C. . Análisis isotópico en dientes de brasileños contemporáneos con dieta y geolocalización conocidas y su valor forense para la identificación humana. Research, Society and Development, [S. l.], v. 10, n. 12, p. e238101220243, 2021. DOI: 10.33448/rsd-v10i12.20243. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/20243. Acesso em: 2 jul. 2024.

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Sección

Ciencias de la salud