TY - JOUR A1 - Pittner, Stefan A1 - Merold, Veronika A1 - Anders, Sven A1 - Lohner, Larissa A1 - Amendt, Jens A1 - Klinger, Miriam A1 - Hausmann, Roland A1 - Kißling, Steffen A1 - Monticelli, Fabio Carlo A1 - Geissenberger, Janine A1 - Zissler, Angela A1 - Steinbacher, Peter T1 - A standard protocol for the analysis of postmortem muscle protein degradation: process optimization and considerations for the application in forensic PMI estimation T2 - International journal of legal medicine N2 - The analysis of postmortem protein degradation has become of large interest for the estimation of the postmortem interval (PMI). Although several techniques have been published in recent years, protein degradation-based techniques still largely did not exceed basic research stages. Reasons include impractical and complex sampling procedures, as well as highly variable protocols in the literature, making it difficult to compare results. Following a three-step procedure, this study aimed to establish an easily replicable standardized procedure for sampling and processing, and further investigated the reliability and limitations for routine application. Initially, sampling and processing were optimized using a rat animal model. In a second step, the possible influences of sample handling and storage on postmortem protein degradation dynamics were assessed on a specifically developed human extracorporeal degradation model. Finally, the practical application was simulated by the collection of tissue in three European forensic institutes and an international transfer to our forensic laboratory, where the samples were processed and analyzed according to the established protocol. KW - Protocol KW - Muscle KW - Protein KW - Degradation KW - PMI Y1 - 2022 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/69460 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-694603 SN - 1437-1596 N1 - Open access funding provided by Austrian Science Fund (FWF). This work was supported by the Austrian Science Fund (FWF), grant P31490. VL - 136 SP - 1913 EP - 1923 PB - Springer CY - Berlin ; Heidelberg ER -