Arterial responses to infusion of glucagon-like peptide-1 in humans: A randomized trial study. 2022

Hashmat Ghanizada, and Rune Häckert Christensen, and Mohammad Al-Mahdi Al-Karagholi, and Fatima Azzahra Elbahi, and Hande Coskun, and Messoud Ashina
Danish Headache Center, Department of Neurology, Rigshospitalet-Glostrup, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark.

Glucagon-like-peptide-1 (GLP-1) is an incretin hormone implicated in several metabolic and neurological disorders. GLP-1 induces vasodilation and increases blood flow in the peripheral circulation. Whether GLP-1 alters cerebral hemodynamics in humans is yet to be elucidated. In a crossover, double-blind, placebo-controlled, and randomized design, 21 healthy volunteers were assigned to receive intravenous GLP-1 infusion (2.5 pmol/kg/min) or placebo over 20 min on two different days separated by at least one week. We used a noninvasive, well-validated transcranial doppler (TCD) and ultrasound dermascan to reveal the effect of GLP-1 on intra- and extracerebral arteries. The mean blood flow velocity in the middle cerebral artery (VMCA), the diameter of the superficial temporal artery (STA) and radial artery (RA), and facial skin blood flow were measured. In addition, we documented headache and its associated symptoms during and after infusion. Twenty participants were included in the final analysis. We found no difference in the VMCA (P = 0.227), diameter of the STA (P = 0.096) and the RA (P = 0.221) and facial blood flow (P = 0.814) after GLP-1 compared to placebo. There were no differences in HR, SAT, EtCO2, or RF (P > 0.05) on the GLP-1 day compared to the placebo day. We found no differences in the incidence of headache after GLP-1 (n = 10) compared to placebo (n = 7) (P = 0.250). GLP-1 infusion did not affect cerebral hemodynamics and induce headache in humans. Further preclinical studies with validated methods are required to determine if intra - and extracerebral vasculature express GLP-1Rs in humans.

UI MeSH Term Description Entries
D004311 Double-Blind Method A method of studying a drug or procedure in which both the subjects and investigators are kept unaware of who is actually getting which specific treatment. Double-Masked Study,Double-Blind Study,Double-Masked Method,Double Blind Method,Double Blind Study,Double Masked Method,Double Masked Study,Double-Blind Methods,Double-Blind Studies,Double-Masked Methods,Double-Masked Studies,Method, Double-Blind,Method, Double-Masked,Methods, Double-Blind,Methods, Double-Masked,Studies, Double-Blind,Studies, Double-Masked,Study, Double-Blind,Study, Double-Masked
D006261 Headache The symptom of PAIN in the cranial region. It may be an isolated benign occurrence or manifestation of a wide variety of HEADACHE DISORDERS. Cephalgia,Hemicrania,Bilateral Headache,Cephalalgia,Cephalodynia,Cranial Pain,Generalized Headache,Head Pain,Ocular Headache,Orthostatic Headache,Periorbital Headache,Retro-Ocular Headache,Sharp Headache,Throbbing Headache,Unilateral Headache,Vertex Headache,Bilateral Headaches,Cephalalgias,Cephalgias,Cephalodynias,Cranial Pains,Generalized Headaches,Head Pains,Headache, Bilateral,Headache, Generalized,Headache, Ocular,Headache, Orthostatic,Headache, Periorbital,Headache, Retro-Ocular,Headache, Sharp,Headache, Throbbing,Headache, Unilateral,Headache, Vertex,Headaches,Headaches, Bilateral,Headaches, Generalized,Headaches, Ocular,Headaches, Orthostatic,Headaches, Periorbital,Headaches, Retro-Ocular,Headaches, Sharp,Headaches, Throbbing,Headaches, Unilateral,Headaches, Vertex,Ocular Headaches,Orthostatic Headaches,Pain, Cranial,Pain, Head,Pains, Cranial,Pains, Head,Periorbital Headaches,Retro Ocular Headache,Retro-Ocular Headaches,Sharp Headaches,Throbbing Headaches,Unilateral Headaches,Vertex Headaches
D006439 Hemodynamics The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM. Hemodynamic
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D014664 Vasodilation The physiological widening of BLOOD VESSELS by relaxing the underlying VASCULAR SMOOTH MUSCLE. Vasodilatation,Vasorelaxation,Vascular Endothelium-Dependent Relaxation,Endothelium-Dependent Relaxation, Vascular,Relaxation, Vascular Endothelium-Dependent,Vascular Endothelium Dependent Relaxation
D052216 Glucagon-Like Peptide 1 A peptide of 36 or 37 amino acids that is derived from PROGLUCAGON and mainly produced by the INTESTINAL L CELLS. GLP-1(1-37 or 1-36) is further N-terminally truncated resulting in GLP-1(7-37) or GLP-1-(7-36) which can be amidated. These GLP-1 peptides are known to enhance glucose-dependent INSULIN release, suppress GLUCAGON release and gastric emptying, lower BLOOD GLUCOSE, and reduce food intake. GLP-1,Glucagon-Like Peptide-1,GLP 1,Glucagon Like Peptide 1
D018592 Cross-Over Studies Studies comparing two or more treatments or interventions in which the subjects or patients, upon completion of the course of one treatment, are switched to another. In the case of two treatments, A and B, half the subjects are randomly allocated to receive these in the order A, B and half to receive them in the order B, A. A criticism of this design is that effects of the first treatment may carry over into the period when the second is given. (Last, A Dictionary of Epidemiology, 2d ed) Cross-Over Design,Cross-Over Trials,Crossover Design,Crossover Studies,Crossover Trials,Cross Over Design,Cross Over Studies,Cross Over Trials,Cross-Over Designs,Cross-Over Study,Crossover Designs,Crossover Study,Design, Cross-Over,Design, Crossover,Designs, Cross-Over,Designs, Crossover,Studies, Cross-Over,Studies, Crossover,Study, Cross-Over,Study, Crossover,Trial, Cross-Over,Trial, Crossover,Trials, Cross-Over,Trials, Crossover
D020768 Middle Cerebral Artery The largest of the cerebral arteries. It trifurcates into temporal, frontal, and parietal branches supplying blood to most of the parenchyma of these lobes in the CEREBRAL CORTEX. These are the areas involved in motor, sensory, and speech activities. Cerebral Artery, Middle,Arteries, Middle Cerebral,Artery, Middle Cerebral,Cerebral Arteries, Middle,Middle Cerebral Arteries

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