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Diabetologia. 2009 Jun;52(6):1027-30. doi: 10.1007/s00125-009-1333-8. Epub 2009 Mar 24.

The effect of bilio-pancreatic diversion on type 2 diabetes in patients with BMI <35 kg/m2.

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  • 1Department of Internal Medicine, Catholic University, Rome, Italy.



To aim of the study was to investigate the effect of bilio-pancreatic diversion (BPD) on type 2 diabetes in patients with BMI <35 kg/m(2).


OGTTs were performed and anthropometric data were compared between five diabetes patients (BMI 27-33 kg/m(2)) following BPD and seven diabetes patients after a low-energy diet. Insulin secretion was computed by C-peptide deconvolution. A euglycaemic-hyperinsulinaemic clamp was performed only in the BPD group and the M value measured.


One month after BPD, fasting and 2 h post-OGTT glycaemia decreased from 15.22 +/- 3.22 to 6.22 +/- 0.51 mmol/l (p = 0.043), while insulin sensitivity increased significantly. No significant changes were observed in the low-energy diet group. Insulin secretion did not differ significantly after either intervention. Diabetes amelioration (change in HbA(1c) level) was observed up to 18 months after BPD without pharmacological therapy.


BPD can achieve adequate control of type 2 diabetes also in patients with BMI <35 kg/m(2). The rapid postoperative remission of diabetes is primarily related to an improvement in insulin sensitivity.

[PubMed - indexed for MEDLINE]
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