Erythrocyte deformability in canine septic shock and the efficacy of pentoxifylline and a leukotriene antagonist. 1987

V Puranapanda, and L B Hinshaw, and E A O'Rear, and A C Chang, and T L Whitsett

Decreased microcirculatory flow in the case of endotoxic shock has been extensively reported. The flexibility of the red blood cell plays an important role in tissue perfusion. The present study with a canine shock model was designed to investigate the changes in erythrocyte flow properties during septic shock. Deformabilities of canine erythrocytes were found to decrease considerably 6 hr after infusion of Escherichia coli organisms (P less than 0.05). Pretreatment of dogs with pentoxifylline reduced the effect by improving erythrocyte deformability significantly and by increasing animal survival times. The leukotriene antagonist LY171883 also increased survival time, but did not change red cell filterability. The mortality of the dogs was not affected by either pentoxifylline or the leukotriene antagonist. Both drugs aided the concentration recovery of circulating leukocytes by 6 hr post-E. coli infusion.

UI MeSH Term Description Entries
D008297 Male Males
D008833 Microcirculation The circulation of the BLOOD through the MICROVASCULAR NETWORK. Microvascular Blood Flow,Microvascular Circulation,Blood Flow, Microvascular,Circulation, Microvascular,Flow, Microvascular Blood,Microvascular Blood Flows,Microvascular Circulations
D010431 Pentoxifylline A METHYLXANTHINE derivative that inhibits phosphodiesterase and affects blood rheology. It improves blood flow by increasing erythrocyte and leukocyte flexibility. It also inhibits platelet aggregation. Pentoxifylline modulates immunologic activity by stimulating cytokine production. Agapurin,BL-191,Oxpentifylline,Pentoxil,Torental,Trental,BL 191,BL191
D004285 Dogs The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065) Canis familiaris,Dog
D004907 Erythrocyte Deformability Ability of ERYTHROCYTES to change shape as they pass through narrow spaces, such as the microvasculature. Erythrocyte Filterability,Deformability, Erythrocyte,Filterability, Erythrocyte
D004927 Escherichia coli Infections Infections with bacteria of the species ESCHERICHIA COLI. E coli Infections,E. coli Infection,Infections, E coli,Infections, Escherichia coli,E coli Infection,E. coli Infections,Escherichia coli Infection,Infection, E coli,Infection, E. coli,Infection, Escherichia coli
D005260 Female Females
D000098 Acetophenones Derivatives of the simplest aromatic ketone acetophenone (of general formula C6H5C(O)CH3).
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
D001393 Azoles Five membered rings containing a NITROGEN atom. Azole

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