UNLABELLED: High levels of serum leptin (LPT) were reported in adult patients with sepsis and a protective role was suggested. LPT was determined in sera from 55 children with severe sepsis at admission (0 h), 6, 24 and 48 h. LPT levels were higher at 0 h than at 24 h (2.80 vs 1.61 ng/ml; p = 0.009) and a negative correlation was found with IL-13 (p = 0.009), and granulocyte counts (p = 0.035), but not with other factors. Infants younger than 12 mo of age had higher LPT levels than older infants (5.88 vs 2.38 ng/ml; p = 0.0005). The increase in LPT levels was higher in non-survivor patients than in survivors, with a maximum difference at 24 h (5.30 vs 1.45 ng/ml; p = 0.0042). However, LPT levels were not associated with shock, multiorgan failure or the severity score. Children who died showed higher percentiles of weight than survivors (p = 0.025). A subgroup with higher LPT (> Pc75) included mainly patients with weight > Pc50 (p = 0.0065), low IL-13 levels (p = 0.007) and low granulocyte counts (p = 0.013), Neisseria meningitidis B being the most frequently isolated germ (p = 0.022). CONCLUSION: Using a model of severe infection, mainly meningococcal, in young children (median 3 y 6 mo old), it was not possible to confirm previous results in adults. A general protective role for LPT in sepsis seems unlikely.
UNLABELLED: High levels of serum leptin (LPT) were reported in adult patients with sepsis and a protective role was suggested. LPT was determined in sera from 55 children with severe sepsis at admission (0 h), 6, 24 and 48 h. LPT levels were higher at 0 h than at 24 h (2.80 vs 1.61 ng/ml; p = 0.009) and a negative correlation was found with IL-13 (p = 0.009), and granulocyte counts (p = 0.035), but not with other factors. Infants younger than 12 mo of age had higher LPT levels than older infants (5.88 vs 2.38 ng/ml; p = 0.0005). The increase in LPT levels was higher in non-survivor patients than in survivors, with a maximum difference at 24 h (5.30 vs 1.45 ng/ml; p = 0.0042). However, LPT levels were not associated with shock, multiorgan failure or the severity score. Children who died showed higher percentiles of weight than survivors (p = 0.025). A subgroup with higher LPT (> Pc75) included mainly patients with weight > Pc50 (p = 0.0065), low IL-13 levels (p = 0.007) and low granulocyte counts (p = 0.013), Neisseria meningitidis B being the most frequently isolated germ (p = 0.022). CONCLUSION: Using a model of severe infection, mainly meningococcal, in young children (median 3 y 6 mo old), it was not possible to confirm previous results in adults. A general protective role for LPT in sepsis seems unlikely.
Authors: Robert C Tasker; Michael F E Roe; David M Bloxham; Deborah K White; Robert I Ross-Russell; D Roddy O'Donnell Journal: Intensive Care Med Date: 2004-11-06 Impact factor: 17.440
Authors: Jennifer M Kaplan; Marchele Nowell; Patrick Lahni; Michael P O'Connor; Paul W Hake; Basilia Zingarelli Journal: Obesity (Silver Spring) Date: 2012-02-15 Impact factor: 5.002