The presence of taste receptors and their secondary messengers in stomach raised the possibility that the stomach might play a role in food 'tasting' and consequently, it might initiate specific adaptations of its secretory and motor function. Furthermore, activated taste receptors release a variety of chemical mediators able to modulate the activity of the enteric nervous system (ENS), and also to influence both secretory and motor functions of the stomach. Based on the physiological fundamental structure of a reflex arch, the stimulation of the gastric taste receptors activates sensory neurons of the gastric wall, continues with motor neurons which initiate the contraction of the local smooth muscle fibers. Beyond this, compounds which act on different taste receptors initiate different responses, stimulatory or inhibitory. These interactions may be translated in the gastric ability to selectively evacuate different nutritive compounds into the duodenum. Consequently, sugars could be favored to the detriment of other compounds.
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http://dx.doi.org/10.3892/etm.2020.8874 | DOI Listing |
Phytomedicine
December 2024
School of Pharmacy, Shaanxi University of Chinese Medicine, Xianyang 712046, PR China; College of Pharmacy and Shaanxi Qinling Application Development and Engineering Center of Chinese Herbal Medicine, Shaanxi University of Chinese Medicine, Xianyang 712046, PR China; Key Laboratory of Pharmacodynamics and Material Basis of Chinese Medicine, Shaanxi Administration of Traditional Chinese Medicine, Xi'an 712046, PR China; Shaanxi Key Laboratory of Research and Application of"Taibai Qi Yao", Xianyang 712046, PR China. Electronic address:
Background: Southern Schisandra is the dried and matured fruit of Schisandra sphenanthera Rehd. et Wils. in the family of Magnoliaceae; Traditional medicine reports that Schisandra sphenanthera has astringent and astringent properties, benefiting qi and promoting the production of body fluid, tranquilising the heart and calming the mind; it is clinically utilized for prolonged cough, thirst due to injury of the body fluid, internal heat and thirst, palpitation and insomnia, etc.
View Article and Find Full Text PDFCureus
November 2024
School of Public Health, Loma Linda University, Loma Linda, USA.
Introduction: Variation in common taste receptor type 2 member 38 (TAS2R38) haplotypes is associated with bitter taste sensitivity, but there is not much or inconsistent evidence on association with food cravings and with chronic disease risk factors. We have conducted a cross-sectional study to assess whether genetically defined taster groups would differ in their sensitivity to bitter-tasting compounds, cravings for various food groups, and risk of chronic disease risk factors. Methodology: A total of 116 non-diabetic individuals were recruited from the Loma Linda University (LLU) campus.
View Article and Find Full Text PDFPhysiol Behav
December 2024
Smell and Taste Center, Department of Otorhinolaryngology: Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, United States. Electronic address:
Over 10 % of the US population are prescribed glucagon-like peptide-1 receptor agonists (GLP-1 RAs) to combat obesity. Although they decrease cravings for foods, their influence on chemosensory function is unknown. We employed state-of-the-art quantitative taste and smell tests to address this issue.
View Article and Find Full Text PDFFood Chem
December 2024
Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, PR China; School of Food Science and Engineering, Ningxia University, Yinchuan 750021, China. Electronic address:
Cyclization enhances various properties of peptides and has been widely used in life sciences, but it has not been explored in taste peptides. Our study found that cyclization of the N/C termini of the peptides (head-to-tail) via amide bond is a potentially effective modification strategy for umami peptides to improve their properties. This is the first report on umami cyclic peptides.
View Article and Find Full Text PDFJ Agric Food Chem
December 2024
Department of Food Science, Rutgers University, 65 Dudley Road, New Brunswick, New Jersey 08901, United States.
Through a quantitative analysis of saltiness perception, favorable enzymatic hydrolysis parameters were confirmed for the preparation of saltiness-enhancing peptide mixtures from . The enzymatic hydrolysate was fractionated into four fractions (F1-F4) by gel chromatography, with F3 exhibiting the strongest saltiness-enhancing effect (22% increase). LC-MS/MS analysis of F3 identified 36 peptides, and their secondary structures and interactions with the TMC4 receptor were examined through circular dichroism spectroscopy and molecular docking.
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