Table 2.

Summary of the main changes in gut hormones after bariatric surgery* [13] [16] [36]- [40]

	Fasting Ghrelin	Ghrelin (PP)	Fasting CCK	CCK (PP)	Fasting GLP-1	GLP-1 (PP)	Fasting GIP	GIP (PP)	Fasting OXM	OXM (PP)	Fasting PYY	PYY (PP)
AGB	↔ ↑	↔	Ø	Ø	↔	↔	↔	↔	Ø	Ø	↔	↔
SG	↓	↓	↔	↑	↔	↑	Ø	Ø	Ø	Ø	↔ ↑ ↓	↑
BPD	↔ ↑	↔	Ø	Ø	↔ ↑	↑	↓	↓	Ø	Ø	↑	↑ Ø
BPD-DS	↓	Ø	Ø	Ø	Ø	Ø	Ø	Ø	Ø	Ø	↑	↑
RYGB	↔ ↑ ↓	↔↓	↔	↑	↔	↑	↔	↔	↔	↑	↔	↑

Legend - *Evidence was obtained from both human and animal published studies. No studies were found about gut hormones and DJB. Abbreviations - AGB Adjustable Gastric Band, VBG Vertical Banded Gastroplasty, SG Sleeve Gastrectomy, JB Jejunoileal Bypass, DJB Duodenojejunal Bypass, BPD Biliopancreatic Diversion, BPD-DS Biliopancreatic Diversion with Duodenal Switch, RYGB Roux-en-Y Gastric Bypass. ↔: No significant change in the majority of studies; ↑: Significant increased in the majority of studies; ↓: Significant decreased in the majority of the studies; Ø: No studies for this parameter; PP: postprandial; CCK: Cholecystokinin; GLP-1: Glucagon Like Peptide-1; GIP: Glucose-dependent insulinotropic polypeptide; OXM: Oxyntomodulin; PYY: Peptide YY.

Adapted from: [36].