TITLE

Persantine Attenuates Hemorrhagic Shock-Induced P-Selectin Expression

AUTHOR(S)
Olinde, John G.; Zibari, Gazi B.; Brown M.D., Mark F.; Howell, James G.; Akgur, Feza M.; McDonald, John C.; Granger, D. Neil
PUB. DATE
December 2000
SOURCE
American Surgeon;Dec2000, Vol. 66 Issue 12, p1093
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Ischemia/reperfusion (I/R), a phenomenon that is associated with conditions such as organ transplantation, trauma, vascular disease, and stroke, involves the recruitment of activated and adherent leukocytes that subsequently mediate tissue injury. Endothelial cell adhesion molecules such as P-selectin mediate UR-induced leukocyte recruitment and allow the adherent leukocytes to damage the vascular wall and parenchymal cells. This study examines the influence of dypiridamole (persantine) on hemorrhagic shock (H/S)-induced P-selectin expression. H/S was induced in C57BL/6 mice by withdrawing blood to drop the mean arterial blood pressure to 30 to 35 mm Hg for 45 minutes. The mice were resuscitated by infusing the shed blood and Ringer's lactate (50% shed blood volume). In vivo P-selectin expression was determined using a dual monoclonal antibody technique in the heart, lung, liver, kidneys, stomach, small bowel, and colon of a control group, a hemorrhagic shock group, and a hemorrhagic shock group that was pretreated with Persantine (Boehringer, Ingelheim, Ingelheim, Germany). H/S significantly (P < 0.01) increased P-selectin expression in all regional vascular beds of untreated mice. Persantine treatment largely prevented the H/S-induced P-selectin expression in the same vascular beds. Persantine significantly attenuates the up-regulation of P-selectin in the hemorrhagic shock model.
ACCESSION #
3917553

 

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