Abstract:
:Enzyme-inducing drugs such as phenobarbital (PB) increase serum concentrations of an acute-phase protein, alpha 1-acid glycoprotein (AGP), in man, dogs, and rats via an unknown mechanism. We studied the effects of PB on components of an acute inflammatory reaction in rats in order to determine if PB acts only on this biological marker of inflammation or is capable of altering the clinical course of inflammatory processes. Local carrageenan injection induces a similar time-dependent plantar edema and increases serum AGP levels in Sprague-Dawley (SD) and Dark Agouti (DA) rats. Pretreatment with PB for seven days modified neither parameter in SD rats while plantar edema was aggravated and serum AGP levels were increased in DA rats. The sedative-hypnotic properties of PB were not involved, since a single administration of this drug had no action in DA rats. On the other hand, chronic PB administration reduced the severity of an autoimmune disease, type II collagen-induced arthritis, in DA rats. These data indicate that PB, a potent inducer a cytochrome P-450-dependent enzymes, modifies the course of the inflammatory process. Preliminary results with macrophage transfer experiments suggest that this response to PB could be mediated by stimulated macrophages.
journal_name
Inflammationjournal_title
Inflammationauthors
Levy FE,Chauvelot-Moachon L,Florentin I,Forest M,Poüs C,Fournier C,Giroud JPdoi
10.1007/BF00923344subject
Has Abstractpub_date
1991-12-01 00:00:00pages
471-80issue
6eissn
0360-3997issn
1573-2576journal_volume
15pub_type
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