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• W3131031121 endingPage "102488" @default.
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• W3131031121 abstract "Previous studies have demonstrated that microbial community succession during the decomposition of cadavers could be used to estimate the postmortem interval (PMI). However, the vast majority of the existing studies focused on exposed cadavers. In fact, burial cadavers are common scenarios for forensic investigations. In this study, the microbial communities from gravesoil, rectum and skin of burial SD rat cadavers during decomposition were characterized using 16S rRNA gene high-throughput sequencing. We predicted PMI based on the microbial community succession. Obvious differences in microbial community structures were observed between different stages of decomposition. Later decay stages had a lower alpha diversity compared to earlier decay stages. Significant linear relationships between similarities of the microbial communities and postmortem intervals were observed, manifesting regular succession over the course of decomposition. Furthermore, we combined random forest models with postmortem microbial features to predict PMI. The model explained 86.83%, 84.55% and 81.67% of the variation in the microbial community, with a mean absolute error of 1.82, 2.06 and 2.13 days within 60 days of decomposition for gravesoil, rectum and skin of burial cadavers, respectively. Overall, our results suggested that postmortem microbial community data could serve as a potential forensic tool to estimate accurate PMI of burial cadavers." @default.
• W3131031121 created "2021-03-01" @default.
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• W3131031121 date "2021-05-01" @default.
• W3131031121 modified "2023-09-28" @default.
• W3131031121 title "Predicting the postmortem interval of burial cadavers based on microbial community succession" @default.
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• W3131031121 doi "https://doi.org/10.1016/j.fsigen.2021.102488" @default.
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