Postmortem redistribution of THC in the pig. 2010

Bertrand Brunet, and Thierry Hauet, and William Hébrard, and Yves Papet, and Gérard Mauco, and Patrick Mura
INSERM U927, Université de Poitiers, Faculté de Médecine et Pharmacie, CHU de Poitiers, 6 rue de la Milétrie, BP 577, 86021, Poitiers, France. bertrand.brunet@chu-poitiers.fr

To improve the knowledge of the postmortem redistribution of Δ(9)-tetrahydrocannabinol (THC), an animal model using the Large White pig has been developed, whereby 15 pigs received an intravenous injection of THC (200 µg/kg body weight) and were euthanized 2 h after administration. An autopsy was performed on three pigs immediately after being euthanized while the others were stored in supine position at ambient temperature for 6, 15, 24, or 48 h. THC concentration in blood from the vena cava decreased after death whereas left or right cardiac blood concentrations increased. No blood specimens collected from different sites of the carcasses adequately reflected the perimortem THC concentrations. The highest concentrations of THC at anytime were observed in lung tissue, and brain tissue seemed to present the most stable concentrations over time. This study can assist toxicologists in determining which specimens can, most appropriately, be used for interpretation of cannabinoid concentrations in postmortem specimens.

UI MeSH Term Description Entries
D007275 Injections, Intravenous Injections made into a vein for therapeutic or experimental purposes. Intravenous Injections,Injection, Intravenous,Intravenous Injection
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008297 Male Males
D009206 Myocardium The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow. Muscle, Cardiac,Muscle, Heart,Cardiac Muscle,Myocardia,Cardiac Muscles,Heart Muscle,Heart Muscles,Muscles, Cardiac,Muscles, Heart
D011180 Postmortem Changes Physiological changes that occur in bodies after death. Adipocere,Algor Mortis,Cruor,Livor Mortis,Change, Postmortem,Changes, Postmortem,Postmortem Change
D001921 Brain The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. Encephalon
D000273 Adipose Tissue Specialized connective tissue composed of fat cells (ADIPOCYTES). It is the site of stored FATS, usually in the form of TRIGLYCERIDES. In mammals, there are two types of adipose tissue, the WHITE FAT and the BROWN FAT. Their relative distributions vary in different species with most adipose tissue being white. Fatty Tissue,Body Fat,Fat Pad,Fat Pads,Pad, Fat,Pads, Fat,Tissue, Adipose,Tissue, Fatty
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D001344 Autopsy Postmortem examination of the body. Autopsies,Post-Mortem Examination,Postmortem Examination,Examination, Post-Mortem,Examination, Postmortem,Examinations, Post-Mortem,Examinations, Postmortem,Post Mortem Examination,Post-Mortem Examinations,Postmortem Examinations

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