Study: NCT02815943

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: biliopancreatic diversion with duodenal switch

Intervention type: PROCEDURE
Group type: EXPERIMENTAL
Intervention: sleeve gastrectomy

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: liquid meal
Description: will be consumed over 30 minutes with \[U-13C\]-palmitate (0.2 g mixed in the liquid meal) and H2-glucose

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: liquid meal
Description: will be consumed over 30 minutes with \[U-13C\]-palmitate (0.2 g mixed in the liquid meal) and H2-glucose

Intervention type: OTHER
Group type: OTHER
Intervention: liquid meal
Description: will be consumed over 30 minutes with \[U-13C\]-palmitate (0.2 g mixed in the liquid meal) and H2-glucose

Intervention type: OTHER
Group type: OTHER
Intervention: liquid meal
Description: will be consumed over 30 minutes with \[U-13C\]-palmitate (0.2 g mixed in the liquid meal) and H2-glucose

Intervention type: RADIATION
Group type: EXPERIMENTAL
Intervention: PET/scan
Description: a dynamic and whole body PET acquisition will be performed on a thoraco-abdominal segment, 150 minutes after an oral administration of 18FTHA

Intervention type: RADIATION
Group type: EXPERIMENTAL
Intervention: PET/scan
Description: a dynamic and whole body PET acquisition will be performed on a thoraco-abdominal segment, 150 minutes after an oral administration of 18FTHA

Intervention type: RADIATION
Group type: OTHER
Intervention: PET/scan
Description: a dynamic and whole body PET acquisition will be performed on a thoraco-abdominal segment, 150 minutes after an oral administration of 18FTHA

Intervention type: RADIATION
Group type: OTHER
Intervention: PET/scan
Description: a dynamic and whole body PET acquisition will be performed on a thoraco-abdominal segment, 150 minutes after an oral administration of 18FTHA

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: [7,7,8,8-2H]-palmitate
Description: i.v. administration of \[7,7,8,8-2H\]-palmitate (in 25% human albumin) from time -60 to 360 min.

Intervention type: OTHER
Group type: EXPERIMENTAL
Intervention: [7,7,8,8-2H]-palmitate
Description: i.v. administration of \[7,7,8,8-2H\]-palmitate (in 25% human albumin) from time -60 to 360 min.

Intervention type: OTHER
Group type: OTHER
Intervention: [7,7,8,8-2H]-palmitate
Description: i.v. administration of \[7,7,8,8-2H\]-palmitate (in 25% human albumin) from time -60 to 360 min.

Intervention type: OTHER
Group type: OTHER
Intervention: [7,7,8,8-2H]-palmitate
Description: i.v. administration of \[7,7,8,8-2H\]-palmitate (in 25% human albumin) from time -60 to 360 min.

Intervention type: DEVICE
Group type: EXPERIMENTAL
Intervention: indirect calorimetry
Description: will be performed every hour throughout the protocol along with exhaled breath collection

Intervention type: DEVICE
Group type: EXPERIMENTAL
Intervention: indirect calorimetry
Description: will be performed every hour throughout the protocol along with exhaled breath collection

Intervention type: DEVICE
Group type: OTHER
Intervention: indirect calorimetry
Description: will be performed every hour throughout the protocol along with exhaled breath collection

Intervention type: DEVICE
Group type: OTHER
Intervention: indirect calorimetry
Description: will be performed every hour throughout the protocol along with exhaled breath collection