In-vitro antiplatelet effect of melatonin in healthy individuals and patients with type 2 diabetes mellitus

0572274 - ÚI 2024 RIV US eng J - Journal Article
Böhm, A. - Lauko, V. - Dostálová, K. - Balanová, I. - Varga, I. - Bezák, B. - Jajcay, Nikola - Moravčík, R. - Lazurová, L. - Slezák, P. - Mojto, V. - Kollárová, M. - Petríková, K. - Daňová, K. - Zeman, M.
In-vitro antiplatelet effect of melatonin in healthy individuals and patients with type 2 diabetes mellitus.
Journal of Endocrinological Investigation. Roč. 46, č. 12 (2023), s. 2493-2500. ISSN 0391-4097. E-ISSN 1720-8386
Institutional support: RVO:67985807
Keywords : Melatonin * Acute myocardial infarction * Circadian variation * Diabetes mellitus * Platelet aggregation
OECD category: Cardiac and Cardiovascular systems
Impact factor: 5.4, year: 2022
Method of publishing: Open access
https://dx.doi.org/10.1007/s40618-023-02102-7

PURPOSE: The incidence of acute myocardial infarctions (AMI) shows circadian variation typically peaking during morning hours with a decline at night. However, this variation does not occur in patients with diabetes mellitus (DM). The night’s decline of AMI may be partially explained by melatonin-related platelet inhibition. Whether this effect is absent in diabetic patients is unknown. The aim was to study the effect of melatonin on in-vitro platelet aggregation in healthy individuals and patients with type 2 DM. METHODS: Platelet aggregation was measured in blood samples from healthy individuals (n = 15) and type 2 DM patients (n = 15) using multiple electrode aggregometry. Adenosine diphosphate (ADP), arachidonic acid (ASPI) and thrombin (TRAP) were used as agonists. Aggregability for each subject was tested after adding melatonin in two concentrations. RESULTS: In healthy individuals, melatonin inhibited platelet aggregation in both higher (10–5 M) and lower concentrations (10–9 M) induced by ADP, ASPI, and TRAP (p < 0.001, p = 0.002, p = 0.029, respectively). In DM patients, melatonin did not affect platelet aggregation in both concentrations induced by ADP, ASPI, and TRAP. Melatonin decreased platelet aggregation induced by ADP, ASPI, and TRAP significantly more in healthy individuals compared to patients with DM. (p = 0.005, p = 0.045 and p = 0.048, respectively). CONCLUSION: Platelet aggregation was inhibited by melatonin in healthy individuals. In-vitro antiplatelet effect of melatonin in type 2 DM patients is significantly attenuated.
Permanent Link: https://hdl.handle.net/11104/0343021