Pharmacological Effects of Citrus Aurantium Compounds
Summary
Citrus aurantium, commonly known as bitter orange, is a rich source of bioactive alkaloids and flavonoids whose pharmacological properties have attracted considerable scientific interest. The principal protoalkaloid, p-synephrine, exerts sympathomimetic actions through selective engagement of adrenergic receptor subtypes, thereby modulating lipid mobilisation and energy expenditure. Beyond its metabolic effects, p-synephrine displays anti-inflammatory and potential anti-neoplastic activities in cellular and animal models, while exerting minimal cardiovascular stimulation at customary botanical extract dosages. Complementary constituents, including flavonoids such as naringenin and hesperidin, contribute antioxidant and vasoprotective effects, enhancing endothelial function and mitigating oxidative stress. Emerging evidence highlights a role for Citrus aurantium compounds in regulating amino acid metabolism, improving energy homeostasis and countering diet-induced dyslipidaemia. In traditional Chinese medicinal contexts, alkaloids such as stachydrine have been identified as modulators of cholinergic activity, offering cardio-cerebrovascular protection. Collectively, the multifaceted actions of Citrus aurantium derive from synergistic interactions among its alkaloids and flavonoids, underpinned by favourable safety profiles that support their use in weight management, sports nutrition and complementary therapies targeting inflammatory and metabolic disorders.
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Pharmacological Effects of Citrus Aurantium Compounds publication trend
The graph below shows the total number of articles in pharmacological effects of citrus aurantium compounds across all publications each year (not limited to Nature Index journals).
Technical terms
p-Synephrine: A protoalkaloid from bitter orange exhibiting mild sympathomimetic and lipolytic activities.
Stachydrine: A choline analog found in Citrus aurantium herbs with cardioprotective and cholinergic modulatory effects.
Adrenergic receptors: Cell surface proteins that mediate responses to catecholamines and related amines.
Metabolomics: The large-scale study of small-molecule metabolites within cells, tissues or organisms.
Energy homeostasis: The balance of energy intake, storage and expenditure in biological systems.
References
- Citrus p-Synephrine Improves Energy Homeostasis by Regulating Amino Acid Metabolism in HFD-Induced Mice. Nutrients (2024).
- Synephrine and Its Derivative Compound A: Common and Specific Biological Effects. International Journal of Molecular Sciences (2023).
- Stachydrine, a Bioactive Equilibrist for Synephrine, Identified from Four Citrus Chinese Herbs. Molecules (2023).
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