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Renalison Farias-Pereira(Renalison Farias-Pereira ),Lynnea Young(Lynnea Young),Yeonhwa Park(Yeonhwa Park) 한국축산식품학회 2021 Food and Life Vol.2021 No.1
Green coffee bean extract (GCBE) is known as an anti-obesity dietary supplement, but its neuroprotective effects have been recently reported. Since GCBE and its main phenolic acids, chlorogenic acids (CGA), share similar physiological effects, this mini review summarizes the most current research of the neurobiological effects of GCBE and CGA. GCBE and/or CGA act on acetylcholine, glutamate, and insulin signaling pathways to reduce the risk of Alzheimer’s disease by reducing amyloid-β proteins (Aβ) and tau proteins in the brain of rodents. Clinical trials, although limited, further suggest that CGA improves cognition, which was associated with changes in blood Aβ levels. In addition, CGA modulates the dopamine metabolism to reduce neurotoxicity in animal models of Parkinson’s disease, although there is no direct association between GCBE and Parkinson’s disease in humans. The antioxidant and anti-inflammatory effects of GCBE and CGA are suggested to be the underlying mechanisms that help to protect from the development of these diseases. GCBE and CGA have potential benefits to prevent the development of neurodegenerative diseases, but there is still a great need to further investigate their effects on Alzheimer’s and Parkinson’s disease.
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Mechanisms of action of coffee bioactive components on lipid metabolism
Renalison Farias-Pereira,박천석,박연화 한국식품과학회 2019 Food Science and Biotechnology Vol.28 No.5
Coffee consumption is associated with reduced risk of metabolic syndrome, obesity and diabetes, which may be related to the effects of coffee and its bioactive components on lipid metabolism. Coffee contains caffeine, a known neuromodulator that acts as an adenosine receptor antagonist, as well as other components, such as chlorogenic acids, trigonelline, cafestol and kahweol. Thus, this review discusses the up-to-date knowledge of mechanisms of action of coffee and its bioactive compounds on lipid metabolism. Although there is evidence that coffee and/or its bioactive compounds regulate transcription factors (e.g. peroxisome proliferator-activated receptors and sterol regulatory element binding proteins) and enzymes (e.g. AMP-activated protein kinase) involved in lipogenesis, lipid uptake, transport, fatty acid β-oxidation and/or lipolysis, needs for the understanding of coffee and its effects on lipid metabolism in humans remain to be answered.
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