The co-ordinated cytokine/hormone response to acute injury incorporates leptin.

Abstract:

:Recent studies have implicated leptin as a "stress" hormone and highlighted its association with increases in inflammatory cytokines, C-reactive protein and cortisol. In order to investigate the exact temporal leptin response to stress we undertook a detailed longitudinal study of circulating leptin concentrations during the well defined surgical injury of cholecystectomy. Circulating concentrations of cortisol, free fatty acids, leptin and C-reactive protein were measured at 3, 6, 9, 12, 18, 24, 48 and 72 h from the start of surgery in nine patients. There was a significant correlation between baseline concentrations of leptin and BMI (r=0. 893, P<0.001). Over the 72 h from the start of surgery there were significant (P<0.05) increases in the concentrations of all analytes (peak median concentrations); cortisol (6 h), free fatty acids (9 h), leptin (18 h) and C-reactive protein (48 h). Interestingly the timing of the leptin peak at approximately 18 h after an acute inflammatory stimulus is exactly the same as previously reported for interleukin 6. These data support the suggestion that the relationship between cortisol and leptin mirrors that of cortisol and another cytokine, interleukin 6, i.e. stimulatory in acute and suppressive in chronic situations. They also imply a physiological role for leptin in acute injury.

journal_name

Cytokine

journal_title

Cytokine

authors

Wallace AM,Sattar N,Mcmillan DC

doi

10.1006/cyto.2000.0674

keywords:

subject

Has Abstract

pub_date

2000-07-01 00:00:00

pages

1042-5

issue

7

eissn

1043-4666

issn

1096-0023

pii

S1043-4666(00)90674-4

journal_volume

12

pub_type

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