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[Melatonin and coronary heart disease]
W Marktl1, P Brugger, M Herold
1Institut für Medizinische Physiologie der Universität Wien, Osterreich.
Wiener Klinische Wochenschrift
|January 24, 1998
Summary
Patients with coronary heart disease (CHD) show lower nocturnal melatonin secretion. This study investigated melatonin, serotonin, and N-acetylserotonin levels in CHD patients versus controls.
Area of Science:
- Biochemistry
- Cardiology
- Neuroendocrinology
Context:
- Elevated nocturnal urinary norepinephrine in coronary heart disease (CHD) patients suggests sympathetic nervous system dysregulation.
- Animal studies indicate melatonin suppresses sympathetic activity.
Purpose:
- To investigate serum concentrations of melatonin, serotonin, and N-acetylserotonin in patients with CHD compared to controls.
- To explore potential links between these neurochemicals and sympathetic activity in CHD.
Summary:
- Serum melatonin levels at 02:00 h were significantly lower in 15 CHD patients compared to 10 controls.
- Serotonin concentrations were lower at 14:00 h in CHD patients, with a non-significant trend at 02:00 h.
- N-acetylserotonin levels tended to be higher in CHD patients.
Impact:
- Findings suggest altered melatonin secretion patterns in individuals with CHD.
- This research may inform future investigations into the role of neuroendocrine factors in cardiovascular health.
- Understanding these biochemical differences could contribute to novel therapeutic strategies for CHD.