SwePub - sökning: WFRF:(Manell Hannes)

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1.	Kristinsson, Hjalti, et al. (författare) The initial rise in GIP secretion during OGTT correlates with the initial suppression of glucagon secretion in adolescents with obesity and type 2 diabetes 2018 Ingår i: Diabetologia. - : Springer. - 0012-186X .- 1432-0428. ; 61, s. S247-S247 Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)
2.	Stenlid, Rasmus, et al. (författare) High DPP-4 concentrations in adolescents are associated with low intact GLP-1 2018 Ingår i: Journal of Clinical Endocrinology and Metabolism. - : Endocrine Society. - 0021-972X .- 1945-7197. ; 103:8, s. 2958-2966 Tidskriftsartikel (refereegranskat)abstract Context: Dipeptidyl Peptidase-4 (DPP-4) metabolizes glucagon-like peptide-1 (GLP-1) and increased DPP4 levels are associated with obesity and visceral adiposity in adults.Objective: Investigating DPP-4 levels in adolescents and association with, firstly, circulating intact GLP-1 levels and glucose tolerance, secondly, BMI, and, thirdly visceral, subcutaneous and liver fat compartments.Design: Cross-sectional study, July 2012 to April 2015.Setting: Pediatric obesity clinic, Uppsala University Hospital.Patients and participants: Children and adolescents with obesity (n=59) and lean controls (n=21), age 8-18.Main outcome measures: BMI SDS, fasting plasma concentrations of DPP-4, total and intact GLP-1, fasting and OGTT concentrations of glucose and visceral (VAT) and subcutaneous (SAT) adipose tissue volumes and liver fat fraction.Results: Plasma DPP-4 decreased with age both in obese (41 ng/ml per year) and lean subjects (48 ng/ml per year). Plasma DPP-4 was higher in males both in the obesity and lean group. When adjusting for age and sex, plasma DPP-4 was negatively associated with intact GLP-1 at fasting, B=-12.3, 95% CI [-22.9, -1.8] and during OGTT, B=-12.1, 95% CI [-22.5, -1.7]. No associations were found between DPP-4 and plasma glucose measured at fasting or after a 2-hour OGTT. Plasma DPP-4 was 19% higher in the obese subjects. Among adipose tissue compartments the strongest association was with VAT, B=0.05, 95% CI [-0.02, 0.12].Conclusions: In adolescents, high plasma DPP-4 concentrations are associated with low proportion of intact GLP-1, high BMI, young age and male sex. The observed associations are compatible with an increased metabolism of GLP-1 in childhood obesity.

Stenlid, Rasmus, et al. (författare)
High DPP-4 concentrations in adolescents are associated with low intact GLP-1
2018
Ingår i: Journal of Clinical Endocrinology and Metabolism. - : Endocrine Society. - 0021-972X .- 1945-7197. ; 103:8, s. 2958-2966
Tidskriftsartikel (refereegranskat)abstract
- Context: Dipeptidyl Peptidase-4 (DPP-4) metabolizes glucagon-like peptide-1 (GLP-1) and increased DPP4 levels are associated with obesity and visceral adiposity in adults.Objective: Investigating DPP-4 levels in adolescents and association with, firstly, circulating intact GLP-1 levels and glucose tolerance, secondly, BMI, and, thirdly visceral, subcutaneous and liver fat compartments.Design: Cross-sectional study, July 2012 to April 2015.Setting: Pediatric obesity clinic, Uppsala University Hospital.Patients and participants: Children and adolescents with obesity (n=59) and lean controls (n=21), age 8-18.Main outcome measures: BMI SDS, fasting plasma concentrations of DPP-4, total and intact GLP-1, fasting and OGTT concentrations of glucose and visceral (VAT) and subcutaneous (SAT) adipose tissue volumes and liver fat fraction.Results: Plasma DPP-4 decreased with age both in obese (41 ng/ml per year) and lean subjects (48 ng/ml per year). Plasma DPP-4 was higher in males both in the obesity and lean group. When adjusting for age and sex, plasma DPP-4 was negatively associated with intact GLP-1 at fasting, B=-12.3, 95% CI [-22.9, -1.8] and during OGTT, B=-12.1, 95% CI [-22.5, -1.7]. No associations were found between DPP-4 and plasma glucose measured at fasting or after a 2-hour OGTT. Plasma DPP-4 was 19% higher in the obese subjects. Among adipose tissue compartments the strongest association was with VAT, B=0.05, 95% CI [-0.02, 0.12].Conclusions: In adolescents, high plasma DPP-4 concentrations are associated with low proportion of intact GLP-1, high BMI, young age and male sex. The observed associations are compatible with an increased metabolism of GLP-1 in childhood obesity.

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