The taphonomy of blood components in decomposing bone and its relevance to physical anthropology
Dados Bibliográficos
OBJECTIVES: The variation and persistence of blood components, in particular red blood cells (RBCs), within bone tissue during the decomposition process, especially at the early stages and in different taphonomic conditions, has never been thoroughly investigated, regardless of the fact that knowing how blood survives or degrades within bone could be of help in solving many anthropological issues, such as trauma analysis and interpretation. MATERIALS AND METHODS: This research investigated the influence of time and taphonomy on the persistence and detectability of blood components in parietal bone fragments (of different post mortem periods and taphonomic conditions) through histological (Hematoxilin and Eosin, HE) and immunohistochemical (Glycophorin A, GYPA) analyses. RESULTS: The immunohistochemical investigation for GYPA showed the presence of RBCs under the form of erythrocyte debris or residues otherwise morphologically unidentifiable using only HE staining. Hence, while well-defined RBCs can be observed only in the first week of decomposition, afterward these structures can be detectable with certainty only by immunohistochemical analysis, which reveals discrete quantities of RBC residues also in dry bone (post mortem interval, or PMI, of 15 years), but not in archaeological samples, in which the greater PMI and the different taphonomic conditions together could be the answer behind such difference. DISCUSSION: This study highlights the usefulness and potential of immunohistochemical detection of GYPA in RBC investigation and gives a realistic idea of the persistence and detectability of erythrocytes in different osteological taphonomic conditions, in contrast to results reported by some authors in literature. Another important result concerns the detection of RBC residues in dry bone, which opens the way to the possible use of RBCs in trauma interpretation
Biological anthropology · Biology · Political science · Relevance (law) · Sociology · Taphonomy · Anthropology · Ecology · Forensic and Genetic Research · Forensic Anthropology and Bioarchaeology Studies · Paleopathology and ancient diseases
Forensic Taphonomy
Fungal osteoclasia
Microscopical Focal Destruction (Tunnels) in Exhumed Human Bones
Fossils in the Making
Paleohistopathology of bone
Fossilized human blood cells from a Hellenistic settlement
Characterisation of microbial attack on archaeological bone
Histological identification of syphilis in pre‐Columbian England
Histological analysis of undecalcified thin sections of archeological bone
Technical note
Ossified haematomas and infectious bone changes on the anterior tibia
Ultrastructure of normal and pathological fossilized red blood cells compared with pseudopathological biological structures
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