[MARMAM] New publication on Muscle histopathology provides evidence of ante-mortem injuries in a series of cetaceans with sharp trauma from ship strikes as the cause of death

Eva María Sierra Pulpillo esierra at becarios.ulpgc.es
Thu Feb 20 09:36:43 PST 2014



Dear MARMAM subscribers:  

 We are pleased to announce the publication of the following paper in PLoS ONE, on February 13, 2014:  

Sierra E, Fernández A, Espinosa de los Monteros A, Arbelo M, Díaz-Delgado J, et al. (2014) Histopathological Muscle Findings May Be Essential for a Definitive Diagnosis of Suspected Sharp Trauma Associated with Ship Strikes in Stranded Cetaceans. PLoS ONE 9(2): e88780. doi:10.1371/journal.pone.0088780  

ABSTRACT: Ship strikes are a major issue for the conservation of may cetacean species. Certain gross and microscopic criteria have been previously reported for establishing a diagnosis of death due to ship strikes in these animals. However, some ship-strike injuries may be masked by advanced carcass decomposition and may be undetectable due to restricted access to the animals. In this report we describe histopathological muscular findings in 13 cetaceans with sharp trauma from ship strikes as the cause of death. Skeletal muscle samples were taken from the incision site and from the main locomotor muscle, the longissimus dorsi, in areas not directly affected by the sharp injury. The microscopic findings in tissues from both sites mainly consisted of haemorrhages; oedema; flocculent, granular or/and hyalinised segmentary degeneration; contraction band necrosis; and discoid degeneration or fragmentation of myofibres. We propose that skeletal muscle histopathology provides evidence of ante-mortem injuries even if the sample was taken elsewhere in the carcass and not only within or adjacent to the sharp trauma site and despite the advanced decomposition of some of the carcasses. This method helps to establish the diagnosis of ship strike as the cause of death.  

Full text is available at: is available online at: http://dx.plos.org/10.1371/journal.pone.0088780   

or alternatively, a pdf can be requested at: esierra at becarios.ulpgc.es[1]   

Best regards,   

Eva Sierra   

Laboratorio de Patología Molecular y Forense   

Unit of Histology and Pathology 
Instituto Universitario de Sanidad Animal y Seguridad Alimentaria (IUSA)
Universidad de Las Palmas de Gran Canaria (ULPGC)
C/ Trasmontaña s/n
35413 Arucas (Las Palmas)
España 

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