Secretion of Glucose-Dependent Insulinotropic Polypeptide in Patients With Type 2 Diabetes Systematic review and meta-analysis of clinical studies

被引:132
作者
Calanna, Salvatore [1 ,2 ]
Christensen, Mikkel [1 ]
Holst, Jens J. [1 ,3 ]
Laferrere, Blandine [4 ]
Gluud, Lise L. [1 ]
Vilsboll, Tina [1 ]
Knop, Filip K. [1 ,3 ]
机构
[1] Univ Copenhagen, Gentofte Hosp, Dept Med, Diabet Res Div, Hellerup, Denmark
[2] Univ Catania, Dept Clin & Mol Biomed, Catania, Italy
[3] Univ Copenhagen, Panum Inst, Dept Biomed Sci, Novo Nordisk Fdn,Ctr Basic Metab Res, DK-2200 Copenhagen, Denmark
[4] Columbia Univ Coll Phys & Surg, St Lukes Roosevelt Hosp Ctr, Obes Nutr Res Ctr, New York, NY 10032 USA
关键词
GASTRIC-INHIBITORY POLYPEPTIDE; GLUCAGON-LIKE PEPTIDE-1; ORAL GLUCOSE; BYPASS-SURGERY; GIP SECRETION; WEIGHT-LOSS; MELLITUS; RESPONSES; OBESITY; HORMONES;
D O I
10.2337/dc13-0465
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
OBJECTIVETo investigate glucose-dependent insulinotropic polypeptide (GIP) secretion in patients with type 2 diabetes and nondiabetic control subjects during oral glucose or meal tests.RESEARCH DESIGN AND METHODSEligible trials were identified by The Cochrane Library, MEDLINE, Embase, and Web of Science. Data were retrieved and random-effects models for the primary meta-analysis, random-effects meta-regression, and subgroup and regression analyses were applied.RESULTSRandom-effects meta-analysis of GIP responses in 23 trials during 28 different stimulation tests showed that patients with type 2 diabetes (n = 363) exhibited no significant differences (P = not significant) in peak plasma GIP, total area under the curve (tAUC), time-corrected tAUC (tAUC x min(-1)), and time-corrected incremental area under the curve (iAUC x min(-1)) in comparison with nondiabetic control subjects (n = 325) but had lower GIP responses as evaluated from iAUC (weighted mean difference, -648 pmol/L x min; 95% CI, -1,276 to -21). Fixed-effects models meta-analyses confirmed most of the results of the primary meta-analysis but showed iAUC x min(-1) to be reduced and showed tAUC and tAUC x min(-1) to be higher in diabetic patients. Random-effects meta-regression of the primary meta-analysis showed that age (peak GIP, tAUC, iAUC, and iAUC x min(-1)), BMI (tAUC, iAUC, and iAUC x min(-1)), and HbA(1c) (iAUC and iAUC x min(-1)) predicted some of the GIP outcomes. Post hoc subgroup analysis showed a negative influence of age and of HbA(1c) on GIP responses and showed a positive influence of BMI on GIP responses.CONCLUSIONSOur results suggest that patients with type 2 diabetes are characterized by preserved GIP secretion in response to oral glucose and meal tests. They also suggest that high BMI is associated with increased GIP responses but increasing age and HbA(1c) are associated with reduced GIP secretion.
引用
收藏
页码:3346 / 3352
页数:7
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