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D J McCarty

Publications and source records attributed to D J McCarty.

At least 199 records · Page 11Linked to original sources

Crystal-induced inflammation in canine joints. II. Importance of polymorphonuclear leukocytes.

In an experimental model, the polymorphonuclear leukocyte was found to be necessary to the inflammation induced by crystals. This conclusion is based on (a) the invariable migration of polymorphonuclear leukocytes into the synovial fluid of canine joints injected with urate crystals, (b) the experimental suppression of the synovitis by the depletion of polymorphonuclear leukocytes in animals treated with vinblastine, (c) the dependence of the degree of suppression on the degree of leukocyte mobilization into the joint space, and (d) the restoration of the inflammatory response in a leukopenic animal by perfusion with normal blood.

Animals↗

Crystal-induced inflammation in canine joints. I. An experimental model with quantification of the host response.

Injection of sodium urate or calcium pyrophosphate crystals into the stifle joints of anesthetized dogs almost invariably induced an acute exudative response. This response was quantified by serial measurements of intra-articular pressure, pH and leukocyte concentration. Pressure rose progressively and reflected intra-articular volume increase. The hydrogen ion concentration increased as the reaction progressed and correlated in a given exudate with the leukocyte concentration. Analysis of sequential physiologic and biochemical changes occurring in this model of crystal-induced inflammation may provide insight into the mechanisms of acute gouty arthritis in man.

Animals↗