Postmortem stability of the rat atrial natriuretic peptide in blood and atrial tissue

J.A. Lorente
C. Hernández-Cueto
E. Villanueva
54

Abstract

The postmortem stability of the rat Atrial Natriuretic Peptide (ANP) has been studied as a necessary and previous step to be applied in the forensic field as a postmortem marker.This peptide–whose extreme sensitivity to slight changes in blood volume is well known–could have great importance in thanatochemistry to establish a correct diagnosis when macroscopical observations and classical parameters are not conclusive or cannot be employed.The results show high stability in atrial tissue, where values are similar from 0 hours (108.99 pm/mg) to 8 hours (109.41 pm/mg) and decrease uniformly until 15 pm/mg) at 32 hours, time of our last determination.Blood ANP showed similar stability from 0 h (105.43 pg/ml) to 8 h (106.62 pg/ml).

Keywords:
Postmortem Changes, Animals, Atrial Natriuretic Factor/analysis, Blood Volume, Heart Atria/analysis, Inbred Strains, Rats, Atrial natriuretic peptide, Thanatochemistry

Authors

J.A. Lorente
C. Hernández-Cueto
E. Villanueva


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