A comparison of plasma polymorphonuclear leucocyte elastase levels in obese and lean individuals.

Increased release of polymorphonuclear leucocyte (PMNL) elastase, when the PMNLs are activated, can damage tissues in vivo. It was postulated that PMNL elastase might have a tissue-remodelling effect in the body and that obese individuals might have less PMNL elastase activity than lean individuals. To test this hypothesis, plasma PMNL elastase levels were determined in 70 obese individuals and 30 lean normal controls. The PMNL elastase levels (determined by enzyme-linked immunosorbent assay) in the obese group (median 36.2 ng/ml) did not differ significantly from those in the lean healthy controls (32.6 ng/ml; P = 0.5).