Long-term normalization of insulin sensitivity following biliopancreatic diversion for obesity

G. F. Adami, R. Cordera, G. Camerini, G. M. Marinari, N. Scopinaro

Research output: Contribution to journalArticle


OBJECTIVE: Assess insulin sensitivity and metabolic status of obese patients with stable weight loss at long term following biliopancreatic diversion (BPD). MATERIAL AND METHODS: The study was carried out in 36 nondiabetic severely obese patients undergoing BPD. Serum concentration of glucose, insulin and leptin were determined prior to and at 2 y following the operation. Insulin sensitivity was calculated according to the homeostatic model assessment (HOMA IR). RESULTS: At 2 y following BPD, weight loss in all subjects corresponded to a marked drop in serum leptin concentration and improvement of insulin sensitivity within physiological range. Following the operation, HOMA IR values were positively correlated with serum leptin concentration independently of body mass index values. DISCUSSION: The stable weight loss following BPD at long term is accompanied by a complete reversal of the preoperative insulin resistance. Serum leptin concentration and HOMA IR data were positively related only postoperatively, suggesting that the action of factors that could influence the relation between leptin and insulin action in the obese status can be reverted.

Original languageEnglish
Pages (from-to)671-673
Number of pages3
JournalInternational Journal of Obesity
Issue number5
Publication statusPublished - May 2004


  • HOMA
  • Insulin sensitivity
  • Leptin
  • Obesity surgery

ASJC Scopus subject areas

  • Food Science
  • Endocrinology
  • Medicine (miscellaneous)
  • Endocrinology, Diabetes and Metabolism
  • Public Health, Environmental and Occupational Health

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