TY - JOUR
T1 - Heart rate acceleration with GLP-1 receptor agonists in type 2 diabetes patients
T2 - an acute and 12-week randomised, double-blind, placebo-controlled trial
AU - Smits, Mark M
AU - Tonneijck, Lennart
AU - Muskiet, Marcel H A
AU - Hoekstra, T.
AU - Kramer, Mark H H
AU - Diamant, Michaela
AU - van Raalte, Daniël H
PY - 2017/1
Y1 - 2017/1
N2 - OBJECTIVE: To examine mechanisms underlying resting heart rate (RHR) increments of GLP-1 receptor agonists in type 2 diabetes patients.DESIGN: Acute and 12-week randomised, placebo-controlled, double-blind, single-centre, parallel-group trial.METHODS: In total, 57 type 2 diabetes patients (mean ± s.d. age: 62.8 ± 6.9 years; BMI: 31.8 ± 4.1 kg/m(2); HbA1c: 7.3 ± 0.6%), treated with metformin and/or sulfonylureas, were included between July 2013 and August 2015. In the acute study, the GLP-1 receptor agonist exenatide (n = 29) or placebo (saline 0.9%; n = 28) was infused intravenously. Subsequently, patients were again randomised to receive the GLP-1 receptor agonist liraglutide (n = 19) or matching placebo (n = 17) for 12 weeks. RHR and blood pressure (BP) were measured by oscillometric technique, systemic haemodynamics by finger photoplethysmography, sympathetic nervous system (SNS) activity by heart rate variability and arterial stiffness by applanation tonometry. This trial was registered at ClinicalTrials.gov (Nbib1744236).RESULTS: Exenatide-infusion increased RHR (mean ± s.e.m. +7.5 ± 0.9 BPM, P < 0.001), and systolic and diastolic BP (both P < 0.05), compared with placebo. Vascular resistance increased during exenatide-infusion, whereas stroke volume and arterial stiffness decreased (P < 0.05). SNS activity and cardiac output were unaffected. Twelve-week treatment with liraglutide increased RHR (+6.6 ± 2.1 BPM), while reducing systolic BP (-12.6 ± 4.7 mmHg) and stroke volume (all P < 0.01). Cardiac output, vascular resistance, arterial stiffness and SNS activity remained unchanged (all P > 0.05).CONCLUSIONS: RHR acceleration with acute and 12-week GLP-1 receptor agonist treatment in type 2 diabetes patients is not explained by changes in SNS activity, and our data argue against vasodilation. In line with pre-clinical data, direct sino-atrial stimulation may be involved.
AB - OBJECTIVE: To examine mechanisms underlying resting heart rate (RHR) increments of GLP-1 receptor agonists in type 2 diabetes patients.DESIGN: Acute and 12-week randomised, placebo-controlled, double-blind, single-centre, parallel-group trial.METHODS: In total, 57 type 2 diabetes patients (mean ± s.d. age: 62.8 ± 6.9 years; BMI: 31.8 ± 4.1 kg/m(2); HbA1c: 7.3 ± 0.6%), treated with metformin and/or sulfonylureas, were included between July 2013 and August 2015. In the acute study, the GLP-1 receptor agonist exenatide (n = 29) or placebo (saline 0.9%; n = 28) was infused intravenously. Subsequently, patients were again randomised to receive the GLP-1 receptor agonist liraglutide (n = 19) or matching placebo (n = 17) for 12 weeks. RHR and blood pressure (BP) were measured by oscillometric technique, systemic haemodynamics by finger photoplethysmography, sympathetic nervous system (SNS) activity by heart rate variability and arterial stiffness by applanation tonometry. This trial was registered at ClinicalTrials.gov (Nbib1744236).RESULTS: Exenatide-infusion increased RHR (mean ± s.e.m. +7.5 ± 0.9 BPM, P < 0.001), and systolic and diastolic BP (both P < 0.05), compared with placebo. Vascular resistance increased during exenatide-infusion, whereas stroke volume and arterial stiffness decreased (P < 0.05). SNS activity and cardiac output were unaffected. Twelve-week treatment with liraglutide increased RHR (+6.6 ± 2.1 BPM), while reducing systolic BP (-12.6 ± 4.7 mmHg) and stroke volume (all P < 0.01). Cardiac output, vascular resistance, arterial stiffness and SNS activity remained unchanged (all P > 0.05).CONCLUSIONS: RHR acceleration with acute and 12-week GLP-1 receptor agonist treatment in type 2 diabetes patients is not explained by changes in SNS activity, and our data argue against vasodilation. In line with pre-clinical data, direct sino-atrial stimulation may be involved.
KW - Aged
KW - Blood Glucose
KW - Blood Pressure
KW - Diabetes Mellitus, Type 2
KW - Double-Blind Method
KW - Female
KW - Glucagon-Like Peptide-1 Receptor
KW - Heart Rate
KW - Humans
KW - Hypoglycemic Agents
KW - Journal Article
KW - Liraglutide
KW - Male
KW - Metformin
KW - Middle Aged
KW - Peptides
KW - Randomized Controlled Trial
KW - Sulfonylurea Compounds
KW - Treatment Outcome
KW - Venoms
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U2 - 10.1530/EJE-16-0507
DO - 10.1530/EJE-16-0507
M3 - Article
C2 - 27777261
SN - 0804-4643
VL - 176
SP - 77
EP - 86
JO - European journal of endocrinology
JF - European journal of endocrinology
IS - 1
ER -
