Cerebrospinal fluid PCR analysis and biochemistry in bodies with severe decomposition

Palmiere, Cristian;Vanhaebost, Jessica;Ventura, Francesco;Bonsignore, Alessandro;Regiani Bonetti, Luca
(2015) Journal of Clinical Forensic and Legal Medicine : an international journal of forensic and legal medicine — Vol. 30, n° 1, p. 21-24 (2015)

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Authors
  • Palmiere, CristianUniversity Center of Legal Medicine, Lausanne University Hospital, Rue du Bugnon 21, 1011 Lausanne, Switzerland
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  • Ventura, FrancescoDipartimento di Medicina Legale, Università degli Studi di Genova, Genova, Italy
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  • Bonsignore, AlessandroDipartimento di Medicina Legale, Università degli Studi di Genova, Genova, Italy
    Author
  • Regiani Bonetti, LucaDipartimento di Patologia e Medicina Legale, Università degli Studi di Modena e Reggio Emilia, Modena, Italy
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Abstract
The aim of this study was to assess whether N. meningitidis, L. monocytogenes, S. pneumoniae and H. influenzae can be identified using the polymerase chain reaction technique in the cerebrospinal fluid of severely decomposed bodies with known, noninfectious causes of death or whether postmortem changes can lead to false positive results and thus erroneous diagnostic information. Biochemical investigations, postmortem bacteriology and real-time polymerase chain reaction analysis in cerebrospinal fluid were performed in a series of medico-legal autopsies that included noninfectious causes of death with decomposition, bacterial meningitis without decomposition, bacterial meningitis with decomposition, low respiratory tract infections with decomposition and abdominal infections with decomposition. In noninfectious causes of death with decomposition, postmortem investigations failed to reveal results consistent with generalized inflammation or bacterial infections at the time of death. Real-time polymerase chain reaction analysis in cerebrospinal fluid did not identify the studied bacteria in any of these cases. The results of this study highlight the usefulness of molecular approaches in bacteriology as well as the use of alternative biological samples in postmortem biochemistry in order to obtain suitable information even in corpses with severe decompositional changes.
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Citations

Palmiere, C., Vanhaebost, J., Ventura, F., Bonsignore, A., & Regiani Bonetti, L. (2015). Cerebrospinal fluid PCR analysis and biochemistry in bodies with severe decomposition. Journal of Clinical Forensic and Legal Medicine : an international journal of forensic and legal medicine, 30(1), 21-24. https://doi.org/10.1016/j.jflm.2014.12.012 (Original work published 2015)