Articles tagged with Taste Receptors
USC scientists have identified the otopetrin 1 gene as the receptor responsible for sensing sour tastes in animals. The study found that mice with a nonfunctional Otop1 gene still produce a small response to sour taste stimuli, suggesting another signaling mechanism may also contribute to sour taste perception.
Researchers have developed effective activators for the bitter taste receptor TAS2R14, which could have significant health effects. The receptors play a role in the human immune system and are found on lung and testicle cells.
Scientists from the Monell Center have discovered that humans possess functional olfactory receptors in their taste cells, challenging the long-held belief that smell and taste are independent sensory systems. This groundbreaking finding may lead to the development of odor-based taste modifiers to combat diet-related diseases.
A team of scientists has identified the Epsom salt receptor TAS2R7, which plays a crucial role in detecting bitter salts and affecting physiological responses. The discovery may lead to the development of new therapeutics for heart disease and other conditions.
Scientists identified a protein, IR7a, required for fruit flies to detect acetic acid and make decisions based on its concentration. This discovery could have implications for understanding taste research and disease prevention.
A recent study has discovered that fruit fly larvae possess novel taste receptors capable of detecting ribonucleosides, the building blocks of RNA. This ability significantly enhances their growth rate and survival, allowing them to increase their body weight by 200-fold in just a few days.
Fruit fly larvae can taste ribonucleosides, a key finding that provides insight into the development of tooth decay. The discovery reveals that Gr28 receptors in taste neurons play a crucial role in detecting these compounds, which are essential for larval growth and survival.
Researchers have discovered that beef peptides can block bitter taste receptors on the tongue, potentially leading to improved flavors in food and medicine. The most effective peptides were produced through enzymatic hydrolysis using trypsin and pepsin enzymes.
Researchers at UCSB have identified a unique class of gustatory receptor neurons necessary for calcium taste in fruit flies. They found that calcium is sensed as slightly bitter and sour, but its effects on human health are complex, with high levels associated with diseases.
Scientists at the University of Warwick have identified tanycytes, key brain cells controlling appetite, which detect amino acids in food and inform the brain about fullness. Eating foods high in specific amino acids can activate these cells, leading to feelings of fullness and potentially aiding weight management.
Researchers discovered that saccharin inhibits the activity of bitter taste receptors stimulated by cyclamate, while cyclamate reduces the off-taste elicited by saccharin. This finding provides tools for developing superior sweetener blends and improving their taste in food products.
Researchers at the University of Pennsylvania School of Medicine have identified amino acids that activate sweet taste receptors, which can block the release of antimicrobial peptides and kill bacteria. This new understanding could lead to new treatments for chronic sinus infections, affecting nearly 35 million Americans annually.
Research at Cornell University found that caffeine tempers taste buds, making food seem less sweet. The study suggests a link between adenosine receptors and taste perception, demonstrating real-world effects of the stimulant on human taste.
A study by Charles Zuker and colleagues has shown that the taste system wires itself through a process of cellular reconnection, allowing flavor information to flow from tongue to brain. The researchers found that specific chemical signals in newborn taste receptor cells can pull the right nerve cell connections towards them.
Scientists discovered that molecules help the tongue communicate with the brain to identify the correct taste. By rewiring the taste-system of mice, researchers found that taste receptor cells determine their own connectivity by providing instructive signals to neurons.
A new study from the Monell Center enables researchers to pinpoint the unique molecular components needed for each type of taste cell to function. This breakthrough provides a treasure trove of information on how taste cells respond to different compounds and can help devise ways to promote healthy eating.
Researchers discover bitter taste receptors in the uterus can relax contracted muscle tissue, potentially stopping premature contractions. The findings provide hope for developing new therapeutics to prevent preterm labor.
University of California Riverside researchers identify amino acid taste receptor Ir76b playing key role in insect identification of umami taste. The discovery sheds light on insect food choice and potential targets for controlling insect populations.
A new type of photoreceptor, LITE-1, has been discovered that is 50 times more efficient at capturing light than the rhodopsin in the human eye. This receptor protein was found among a family of taste receptors in invertebrates and has unusual characteristics suggesting potential future applications.
A team of Japanese researchers made a groundbreaking discovery about the way we taste by studying the structure changes of taste receptor proteins when they bind to taste substances. This change is thought to transmit information from outside the cell, enabling precise analysis of taste substance binding and related processes.
Researchers found that a small dose of E. coli wall can significantly reduce the desire for sweets in mice, possibly by triggering higher levels of leptin hormone. This effect persists for seven days and may have implications for obesity prevention.
Research from the Monell Center found that children's ability to detect sugar varies widely, with some being 20 times more sensitive than others. Genetic analysis revealed a link between bitter receptor genes and sweet taste sensitivity, while dietary records showed a correlation between sugar consumption and body fat.
A study by Penn Medicine and Monell Chemical Senses Center found a genetic taste receptor linked to improved breathing, reduced infections, and enhanced sleep outcomes for patients undergoing chronic sinus surgery. The discovery may improve treatment selection process and set realistic expectations for patients.
Researchers found that a bitter taste receptor and genetic variations can predict surgical outcomes in certain CRS patients. Patients with the sensitive PAV variant tend to have better post-surgical improvement and may benefit from more aggressive approaches.
Cornell researchers modified stevia's component rebudioside A to dissipate its bitter components, reducing its aftertaste. The study's findings could encourage the beverage industry to adopt more stevia in their products.
New research reveals cats have at least seven functional bitter taste receptors, despite not consuming plants in their diet. The study questions the common hypothesis that bitter taste evolved to protect animals from ingesting poisonous plant compounds.
Researchers found that baby rats whose mothers were fed a high-fat diet had smaller bitter taste receptors in their hearts and larger hearts than normal, suggesting an impact on cardiovascular health.
Domestic cats have a unique perception of bitterness in food due to variations in their repertoire of bitter receptors, which differs from that of other mammals. The study found that cat taste receptors were less sensitive to certain bitter compounds compared to human receptors, explaining why cats can be picky eaters.
Research from Monell Center reveals that tumor necrosis factor (TNF) helps regulate sensitivity to bitter taste. In normal mice, TNF makes foods taste more bitter during illness due to increased sensitivity. This finding may explain the decreased food intake associated with infections and chronic inflammatory diseases.
A University of Michigan-led study has found that penguins have lost the genes for the umami and bitter tastes, as well as a sweeter taste, which is puzzling given their diet of fish. The loss of these tastes likely occurred due to ancient climate-cooling events in Antarctica.
Genetic analysis reveals penguins have lost three basic tastes over evolutionary time, leaving them with only salty and sour flavors. Their unique tongue structure and behavior of swallowing food whole may be adaptations to their environment.
Researchers found that chickens have a limited number of bitter taste receptors but can compensate with a wider tuning range. Frogs, on the other hand, have more receptors and a mix of broad and narrow tuning capabilities. This diversity may be an adaptation to their environment, which includes both land and water.
A new study reveals that genetic variations in taste receptors influence intensity perceptions of alcohol-related sensations. Researchers found that individuals with different versions of bitter and burn receptor genes experience varying levels of bitterness and burning sensations when consuming alcohol.
Researchers discovered how hummingbirds detected sugar by analyzing their taste receptors, which expanded to respond to carbohydrates. The study revealed that a single mutation drove behavior changes in the birds.
Researchers have localized stress-activated hormone receptors in oral taste cells responsible for detection of sweet, umami, and bitter. The findings suggest that stress hormones may directly affect how these cells respond to sugars and certain other taste stimuli.
Researchers found that giant pandas possess functional sweet taste receptors and show a strong preference for natural sweeteners. The study used behavioral and molecular genetic studies to investigate the giant panda's taste preferences and diet selection.
Researchers found that sweet taste receptors on solitary chemosensory cells control the release of AMPs, which kill bacteria and viruses. This discovery may lead to new treatments for chronic sinusitis and other respiratory infections.
Researchers at UC Riverside have discovered how the common fruit fly detects sweet compounds, revealing a new understanding of taste receptors in insects. The study's findings hold promise for developing strategies to block these receptors, potentially helping to control disease-carrying mosquitoes and other pests.
A recent study published in Molecular Biology and Evolution found that herbivores have a greater number of Tas2r bitter taste receptor genes than omnivores and carnivores. The researchers correlated the Tas2r gene repertoire with dietary compositions, revealing a significant relationship between plant diet fraction and Tas2r gene number.
Researchers found that messenger RNA expression affects bitter taste sensitivity in individuals with the same genetic makeup. The study discovered a direct relationship between mRNA expression and bitterness ratings of broccoli juice.
A study by the University of Adelaide found that people with type 2 diabetes have defective gut taste mechanisms that lead to rapid glucose uptake. This suggests that the gut plays a crucial role in regulating glucose levels beyond insulin function.
A new study reveals an unexpected role for a protein in the integration of opposing attractive and aversive gustatory stimuli in fruit flies. The findings demonstrate that the protein inhibits the activity of sugar-activated receptors when bitter compounds are present, reducing attraction to sugars.
Researchers found that genetic variations in two bitter taste receptor genes can explain differences in the perception of artificial sweeteners like Ace K. Additionally, studies on stevia extracts revealed that RebD is perceived as less bitter than RebA, suggesting potential opportunities for developing new sweeteners.
Brandeis researchers have discovered a previously unknown molecular temperature sensor in fruit flies, which belongs to a protein family responsible for sensing tastes and smells. The discovery provides insights into how insects respond to temperature and may help scientists develop more effective repellents or traps.
Peihua Jiang, a molecular neurobiologist at Monell Chemical Senses Center, has been awarded the Ajinomoto Award for his groundbreaking work on taste stem cells. His research has identified previously elusive adult taste stem cells and implications for patients with loss of taste function.
Researchers discovered that CALHM1 channel plays a key role in transmitting signals from Type II taste cells to the brain. Mice lacking this gene have difficulty detecting sweet and bitter tastes, highlighting its importance for our sense of taste.
A team of scientists discovered that certain bitter taste receptors can relax airway smooth muscle cells, potentially halting asthma attacks. The study's findings suggest that these bitter compounds may be an improvement over current treatments due to their rapid relaxation effects.
Researchers found that stimulating bitter taste receptors in some airway cells can lead to improved treatments for asthma attacks. Bitter substances act by shutting down calcium channels, allowing bronchodilation and ending the asthma attack.
Researchers at Monell Chemical Senses Center have identified progenitor cells in taste tissue that can differentiate into functional taste cells, potentially helping treat clinical taste dysfunction. The discovery opens up new areas for studying taste cell renewal and contributes to stem cell biology.
A new study found that bitter taste receptors play a crucial role in fighting off chronic sinus infections by detecting specific bacterial molecules. The research suggests that individuals with strong bitter taste sensitivities have better defenses against these infections.
Researchers found that T2R38 is expressed in upper respiratory tract cells and activated by bacteria, correlating with increased susceptibility to sinus infections. Genetic variation in the T2R38 gene contributes to individual differences in respiratory infection risk.
Researchers at TUM and DIfE discovered the hTAS2R4 and hTAS2R14 receptors responsible for Stevia's bitter taste. The study found that the structure of glycoside molecules plays a key role in determining sweetness or bitterness in Stevia.
A study found that genetic variations in an odor receptor gene affect responses to cooked meat, shedding light on controversies surrounding androstenone content. Researchers investigated participants' responses to different pork samples, revealing a significant impact of the gene variant on taste perception.
A recent study found that two specific genes, TAS2R38 and CD36, may play a role in some people's ability to taste and enjoy dietary fat. Individuals with certain genetic variants are more likely to prefer higher-fat foods, potentially contributing to obesity risk.
Seven mammalian species have lost the sense of sweet taste, including strict carnivores like cats and sea lions, due to defects in their sweet taste receptors. This finding suggests that dietary specialization can lead to evolutionary trade-offs in sensory perception.
Ichiro Matsumoto, a molecular biologist at Monell Center, has received the 2012 Ajinomoto Award for his significant contributions to understanding taste bud organization and differentiation in various vertebrate species. His research has also examined taste receptors, neural pathways, and clinical taste dysfunction.
Research reveals that four basic tastes are processed by distinct areas of the brain, with unique taste receptors and neurons arranging discretely in a gustotopic map. This discovery sheds light on how our brains represent the last of the classical five senses.
Researchers at Monell Chemical Senses Center discover a protein called Serca3 that terminates bitter taste signals by removing calcium from taste cells. This finding may help explain why some people are supersensitive to certain tastes and could lead to the development of medicines to minimize unpleasant side effects.
Scientists from Monell Center and Integral Molecular have discovered a compound that inhibits bitterness by acting directly on a subset of bitter taste receptors, opening doors to better nutrition and therapeutic compliance. The discovery of probenecid as a bitter blocker may lead to the development of novel and more effective blockers.
Researchers have discovered new compounds that relax airway muscles, potentially providing relief for patients with asthma and COPD. The compounds, which work through a different mechanism than current bronchodilators, show promise as a new class of therapeutics for treating these diseases.