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2002 OCT 24 - (NewsRx.com & NewsRx.net) -- by Maria G. Essig, MS, ELS, senior medical writer - Plasma levels of interleukin-18 (IL-18) were reduced by weight loss, indicating an association between the cytokine and obesity, according to a report in the Journal of Clinical Endocrinology and Metabolism.
"Obesity is associated with an increased risk of developing atherosclerosis, which may be mediated, at least in part, by increased secretion of proinflammatory cytokines by adipose tissue," explained Katherine Esposito and colleagues at the Second University of Naples. "We examined the hypothesis that circulating levels of interleukin-18 were elevated in obese women and would be reduced by weight loss."
The investigators measured IL-18 levels in 40 obese women (mean body mass index, 36.4 kg/m[superscript]2) who followed a calorie-restricted weight-loss diet for a year and in 40 normal-weight women (Weight loss reduces interleukin-18 levels in obese women. J Clin Endocrinol Metab, 2002;87(8):3864-3866).
IL-18 plasma concentrations were significantly higher in the obese women compared with the lean women (p
Plasma concentrations of IL-18 dropped from 247 to 147 pg/mL in women who lost at least 10% of their body weight in a year by following a restricted-energy diet (p
"In obese women, IL-18 levels are associated with body weight and abdominal fat deposition; weight loss is an important ...
Source: HighBeam Research, Interleukin-18 associated with obesity.