alexa Time-dependent histamine release from stored human blood products.
General Science

General Science

Biological Systems: Open Access

Author(s): Nielsen HJ, Edvardsen L, Vangsgaard K, Dybkjaer E, Skov PS

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Abstract Perioperative transfusion of whole blood has been shown to amplify trauma-induced immunosuppression, which could be attenuated by perioperative administration of histamine2 receptor antagonists. Supernatants from different blood products were, therefore, analysed for histamine content during storage. Whole blood (six units), plasma-reduced whole blood (six units), and plasma- and buffy coat-reduced (saline-adenine-glucose-mannitol) (SAGM) blood (six units) from unpaid healthy donors were stored in the blood bank for 35 days at 4 degrees C. Plasma histamine and total cell-bound histamine content at donation, and histamine concentration in samples drawn from the units on days 0, 2, 5, 9, 14, 21, 28 and 35 were analysed with an enzyme-linked immunosorbent assay. Median plasma histamine concentration was 4.8 (range 1.9-14.3) nmol/l (n = 18). Median total cell-bound histamine content was 417.0 (range 176.0-910.0) nmol/l in whole blood and 475.0 (range 360.0-1560.0) nmol/l in plasma-reduced whole blood, while it was undetectable in SAGM blood. Spontaneous histamine release increased in a time-dependent manner from a median of 6.7 (range 2.2-17.4) nmol/l at the time of storage to 175.0 (range 33.0-485.0) nmol/l at day 35 in whole blood, from 18.8 (range 8.2-38.5) to 328.5 (range 224.0-1137.0) nmol/l in plasma-reduced whole blood, and from 0.5 (range 0.5-1.5) to 2.2 (range 1.4-6.9) nmol/l in SAGM blood. These results show spontaneous histamine release during storage of human blood products which contain full amount of leucocytes, and this may play a significant role in detrimental effects of blood transfusion.
This article was published in Br J Surg and referenced in Biological Systems: Open Access

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