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A dissociation between fever and prostaglandin concentration in cerebrospinal fluid.
Author(s) -
Cranston W I,
Hellon R F,
Mitchell D
Publication year - 1975
Publication title -
the journal of physiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.802
H-Index - 240
eISSN - 1469-7793
pISSN - 0022-3751
DOI - 10.1113/jphysiol.1975.sp011208
Subject(s) - sodium salicylate , cisterna magna , cerebrospinal fluid , prostaglandin , chemistry , endogeny , prostaglandin e2 , prostaglandin e , endocrinology , medicine , anesthesia , biochemistry
1. Sustained fever has been induced in conscious rabbits by I.V. injection and infusion of endogenous pyrogen. 2. Cerebrospinal fluid (e.s.f.) was sampled from the cisterna magna at hourly intervals. The concentration of prostaglandin increased in parallel with rectal temperature. The prostaglandin was identified as one of the E series. 3. When sodium salicylate (1‐5 m‐mole followed by a continuous infusion of 9 mumole/min) was started 1 hr before endogenous pyrogen, the febrile response to the pyrogen was not significantly diminished but no rise of prostaglandin concentration was detected in c.s.f. 4. This dissociation between fever and prostaglandin concentration means that changes in cisternal prostaglandin concentration cannot be accepted as evidence that prostaglandin mediates the febrile response.