TY - JOUR

T1 - Influence of Cdp-Choline Administration on Early Burn Edema in Rats

AU - Hernekamp, Jochen Frederick

AU - Hu, Sissi Xi

AU - Schmidt, Volker Jürgen

AU - Vogelpohl, Julian

AU - Kneser, Ulrich

AU - Kremer, Thomas

PY - 2015/10

Y1 - 2015/10

N2 - PURPOSE: The cholinergic anti-inflammatory pathway may play an important role in early burn edema. Therefore, we evaluated the influence of cdp-choline on early systemic burn edema and leukocyte activation in shock in rat mesenteries after burn plasma transfer.METHODS: Burn plasma harvested from donor rats 4 hours after thermal injury (30% total body surface area, 100°C water, 12 seconds) was administered intravenously to healthy animals during 2 hours of intravital microscopy. Shamburn plasma (same procedure but water at 37°C) was transferred for negative controls. In the study group, bolus injection of 100 mg/kg body weight cdp-choline was undertaken 15 minutes before examination. Intravital microscopy was performed in the ileal portion of rat mesenteries at 0, 60, and 120 minutes. Capillary leakage was assessed by fluorescein isothiocyanate-albumin extravasation and leukocyte-endothelial interaction were observed via transillumination microscopy. To assure comparable hemodynamic conditions, microhemodynamic parameters, foremost venular wall shear rate, were assessed.RESULTS: Capillary leakage increased significantly after burn plasma transfer when compared to the shamburn group. Additional intravenous administration of cdp-choline attenuates macromolecular efflux to shamburn levels. Leukocyte activation is reduced after cdp-choline treatment.CONCLUSIONS: The significant increase of albumin efflux in rat mesenteries after burn plasma transfer is decreased by additional cdp-choline bolus administration. Further investigations for proof of the relevance of the cholinergic anti-inflammatory pathway in early burn trauma are strongly required.

AB - PURPOSE: The cholinergic anti-inflammatory pathway may play an important role in early burn edema. Therefore, we evaluated the influence of cdp-choline on early systemic burn edema and leukocyte activation in shock in rat mesenteries after burn plasma transfer.METHODS: Burn plasma harvested from donor rats 4 hours after thermal injury (30% total body surface area, 100°C water, 12 seconds) was administered intravenously to healthy animals during 2 hours of intravital microscopy. Shamburn plasma (same procedure but water at 37°C) was transferred for negative controls. In the study group, bolus injection of 100 mg/kg body weight cdp-choline was undertaken 15 minutes before examination. Intravital microscopy was performed in the ileal portion of rat mesenteries at 0, 60, and 120 minutes. Capillary leakage was assessed by fluorescein isothiocyanate-albumin extravasation and leukocyte-endothelial interaction were observed via transillumination microscopy. To assure comparable hemodynamic conditions, microhemodynamic parameters, foremost venular wall shear rate, were assessed.RESULTS: Capillary leakage increased significantly after burn plasma transfer when compared to the shamburn group. Additional intravenous administration of cdp-choline attenuates macromolecular efflux to shamburn levels. Leukocyte activation is reduced after cdp-choline treatment.CONCLUSIONS: The significant increase of albumin efflux in rat mesenteries after burn plasma transfer is decreased by additional cdp-choline bolus administration. Further investigations for proof of the relevance of the cholinergic anti-inflammatory pathway in early burn trauma are strongly required.

KW - Animals

KW - Burns/complications

KW - Cholinergic Agents/pharmacology

KW - Cytidine Diphosphate Choline/pharmacology

KW - Edema/drug therapy

KW - Endothelium, Vascular/drug effects

KW - Injections, Intravenous

KW - Leukocytes/drug effects

KW - Male

KW - Random Allocation

KW - Rats

KW - Rats, Wistar

KW - Treatment Outcome

U2 - 10.1097/SAP.0000000000000605

DO - 10.1097/SAP.0000000000000605

M3 - Journal article

C2 - 26360650

VL - 75

SP - 388

EP - 392

JO - Annals of Plastic Surgery

JF - Annals of Plastic Surgery

SN - 0148-7043

IS - 4

ER -