Post-mortem analysis of bone marrow osteoclasts using tartrate-resistant acid phosphatase staining: does histochemistry work and correlate with time since death?

Journal of Clinical Pathology
Joachim BoehmH E Schaefer

Abstract

In bone marrow (BM) biopsies, tartrate-resistant acid phosphatase (TRAP) staining represents the gold standard for the characterisation of osteoclasts. TRAP is one of the few enzymes that is histochemically detectable on formalin-fixed paraffin-embedded tissue. This study investigated whether TRAP is also able to visualise BM osteoclasts in autopsy tissue. It was hypothesised that, due to a progressive loss of enzymatic activity in osteoclasts post-mortem, TRAP staining could allow the time of death of a patient to be determined. TRAP-stained BM slides of 96 cases including 51 pathology and 23 forensic autopsies and 22 biopsies were histologically evaluated and their staining intensity (SI) semi-quantitatively graded. In the autopsy cases, the results were correlated with the post-mortem interval (PMI, time span in days between death and autopsy). TRAP staining intensities (TRAP-SIs) did not differ between men and women and showed a steady decrease with age. TRAP-SIs were significantly stronger in biopsies than in autopsy cases. Among the autopsies, TRAP-SIs were highly variable and not dependent on PMI, except for three forensic cases with PMI ≥7 days which showed a complete loss of TRAP stainability. On the whole, the TRAP-SI...Continue Reading

References

Nov 1, 1987·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·S C Marks, M L Grolman
Jan 22, 2000·Forensic Science International : Synergy·F WehnerJ Subke
Jun 8, 2000·Forensic Science International : Synergy·F WehnerJ Subke
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Oct 24, 2001·Forensic Science International : Synergy·F WehnerJ Subke
Jan 17, 2002·Forensic Science International : Synergy·F WehnerJ Subke

Related Concepts

Acid Phosphatase
Autopsy
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