Abstract:
:Widespread damage to axons in the white matter of the brain is a well-recognised consequence of non-missile head injury. This diffuse axonal injury is characterised by a gradual swelling of the axon associated with an accumulation of cellular organelles and proteins. We have investigated the relationship between the size of the swellings of the damaged axon with survival time in post-mortem brain tissue. Sixty-six cases of head injury with known length of post-traumatic survival were selected for study, and immunohistochemistry for beta-amyloid precursor protein (betaAPP) was carried out. The minimum diameter of the betaAPP-immunolabelled damaged axons was measured in micrometers using the IBAS image analysis system. There was a strong, positive and significant relationship between the mean size of axonal swelling and survival time which plateaued at around 85 h post injury. With longer survival times the situation becomes more complex. betaAPP immunolabelling of damaged axons can contribute evidence about trauma and post-injury survival time in the forensic setting but should always be assessed with other evidence.
journal_name
Acta Neuropatholjournal_title
Acta neuropathologicaauthors
Wilkinson AE,Bridges LR,Sivaloganathan Sdoi
10.1007/s004010051069subject
Has Abstractpub_date
1999-08-01 00:00:00pages
197-202issue
2eissn
0001-6322issn
1432-0533journal_volume
98pub_type
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