Articles tagged with Transient Receptor Potential Channels
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Researchers found that the skin relies on TRPM8 sensor for cold detection, while internal organs primarily use TRPA1 sensor. This difference explains variations in external and internal cold perception, and has implications for understanding thermal homeostasis and pathologies related to cold sensitivity.
Researchers at Toho University discovered that pyrazole-3 inhibits the TRPC3 channel, preventing atrial fibrillation persistence. This finding suggests targeting TRPC3 channels as a promising therapeutic approach for atrial fibrillation and related cardiovascular diseases.
A new study suggests that menthol in electronic cigarettes may pose risks to a developing baby, inhibiting cell growth and increasing cell death. The researchers recommend discouraging the use of mentholated e-cigarettes during pregnancy until more research is conducted.
Research reveals TRPV4 complex promotes sweat secretion in mouse foot pads, suggesting its potential role in human perspiration. The study also suggests that TRPV4 may regulate friction forces, which could impact traction on hind paws.
Research reveals that polyphenols interact with bitter taste receptors in the gut, promoting vasorelaxation, regulating blood pressure, and influencing hormone secretion. Bitter and astringent perception of polyphenols also affects HPA axis activation, improving mood and memory function.
Researchers have identified a novel insect repellent, 2-methylthiazoline (2MT), which induces robust aversive responses through multiple sensory pathways in fruit flies. The compound stimulates both olfactory and nociceptive pathways, leading to avoidance behaviors and effective repulsion from fly pests.
Research finds that skin keratinocytes regulate temperature sensation by controlling the amount of TRPV3 proteins, reducing their activity when bound to TMEM79. This discovery resolves controversy over skin keratinocytes' involvement in temperature detection.
Researchers at Kanazawa University used high-speed atomic force microscopy to study the TRPV1 protein's structural fluctuations in response to stimulating and suppressing ligands. They found that ligand binding increases conformational fluctuations, while suppression decreases them.
Researchers have identified an endocannabinoid, 2-linoleoyl glycerol (2-LG), responsible for activating TRP channels in photoreceptor cells. This discovery sheds light on the visual transduction process and may have implications for other sensory systems.
Two independent teams of researchers have found the molecular mechanism of action of praziquantel, the only approved drug to treat schistosomiasis. The drug binds to a specific type of channel in the cell membrane, causing calcium ions influx and resulting in worm paralysis and death.
Columbia University researchers have captured the most detailed images yet of a temperature-sensing molecule in its open, intermediate, and closed states. The findings will help us understand the mechanics of hot and cold sensation, which could accelerate the development of drugs for inflammatory skin disease, itch, and pain.
Spiders, including wolf spiders, react to irritating chemicals like allyl isothiocyanate in a similar way to mammals and humans, who have transient receptor potential channels that activate sensations like pain and taste. This reaction causes them to avoid eating insects coated with these chemicals.
Researchers at VIB & KU Leuven have identified a trio of complementary ion channels in sensory neurons that detect acute, harmful heat. The presence of three redundant molecular heat-sensing mechanisms provides a powerful fail-safe mechanism to protect against burn injuries.
Researchers identified natural compounds that repel fire ants by activating a type of ion channel highly expressed in the insect's antennae and legs. These compounds, including one found in cinnamon, were found to be less effective at activating the fire ant version of this channel compared to honey bees.
A large study found that consuming hot red chili peppers is associated with a 13% reduction in total mortality, primarily due to heart disease and stroke. The study analyzed data from over 16,000 Americans who were followed for up to 23 years.
Researchers have captured new images of a calcium-shuttling molecule that has been linked to aggressive cancers. This discovery could lead to the development of novel therapies and diagnostic tools for diseases caused by malfunctioning calcium adsorption.
Researchers at UCSB have made new discoveries about the signaling cascade necessary for phototransduction, allowing animals to detect light. The study reveals that XPORT-A and XPORT-B molecular chaperone proteins are critical for moving TRP channels to the cell surface.
Researchers found that plant-derived tick repellents activate a sensory protein on mite front legs, influencing their survival. The discovery sheds light on the evolutionary plasticity of TRP channels in parasite-host interactions.
Researchers at UCSB have identified a TRP channel that plays a key role in the insect's fine motor coordination. Null mutations in this channel impair highly coordinated movements while leaving gross motor control intact. The discovery sheds light on molecular processes underlying fine motor control in other animals, including humans.
Researchers have discovered a mechanism linking inhaled diesel pollution to respiratory distress by activating airway sensory nerves. The study found that diesel particles activate the TRPA1 channel, leading to increased oxidative stress and exacerbating respiratory conditions such as asthma.
Researchers at Duke University have made a surprising discovery about the role of calcium in pain sensation using Caenorhabditis elegans worms. Calcium flow through pain-sensing channels helps worms adapt to repeated painful stimuli by desensitizing them, suggesting a potential survival advantage.
Research by Yi Dai and team found that allyl isothiocyanate activates transient receptor potential channel A1, leading to calcitonin gene-related peptide release in sensory neurons. Knockdown of this channel prevents calcitonin gene-related peptide release, supporting the role of transient receptor potential channel A1 in hyperalgesia.
The study found that TRPV3 channels in western clawed frogs have opposite temperature sensitivities compared to mammals, indicating dynamic adaptation to thermal environments. The researchers identified a gene and examined its function, revealing structural differences between frog and mammal channels.
Researchers at Johns Hopkins Medicine found that mosquitoes and other insects use taste receptors to detect DEET and smell citronellal, leading to aversion responses. The study identified three essential taste receptors for DEET detection and two distinct types of cell surface channels required for avoiding citronellal vapor.
Researchers at Johns Hopkins Medicine have identified a protein in sensory cells of fruit flies that allows them to detect and avoid noxious chemicals. The discovery opens up new possibilities for controlling insect pests and protecting crops.
The Journal of General Physiology explores the mysteries of TRP channels, which are crucial for various senses. The latest Perspectives series provides a comprehensive overview of their biophysics, protein structure, and gating processes, shedding light on areas in need of further exploration.
Researchers at Johns Hopkins Medicine found that fruit flies use TRPA1 to sense single degree changes in the comfortable range, adapting to different temperatures through a multistep process. This discovery raises the possibility that mammals may also be able to sense small changes in internal body temperature.
Scientists have created the first three-dimensional view of the protein TRPV1, which senses the heat of hot peppers and pain. The study reveals surprising information about its structure, including a 'hanging basket' area that regulates the channel.
Researchers at Johns Hopkins Medicine have identified a gene, Pirt, that regulates a heat-activated molecular sensor, leading to variable pain sensitivity. The study found that mice lacking Pirt responded slower to heat and were less sensitive to capsaicin, suggesting Pirt's specific role in pain perception.
Researchers at UC Davis have made a groundbreaking discovery about the body's temperature sensing capabilities. By reassembling subunits from different ion channels, they found that there are more than six channel types responsible for sensing temperature, which could help solve the mystery of thermosensitivity in animals.
A new gene, Lazaro, has been discovered to reduce retinal degeneration in fruit flies by enhancing the production of diacylglycerol, a key player in controlling TRP channels. This discovery may have implications for understanding sensory signaling in mammals.
Raw garlic activates TRPV1 and TRPA1 ion channel proteins in pain-sensing neurons, detecting temperature and pain. The loss of allicin when garlic is cooked accounts for the change in pungency.
Researchers have identified the compound allicin as responsible for activating specific protein thermoreceptors in the mouth, leading to the characteristic burning sensation of raw garlic. This finding provides new insights into the pungency associated with raw garlic and its potential health benefits.
Researchers at Howard Hughes Medical Institute find that TRPA1, a protein known for its role in sensory transduction, also forms a spring-like structure in hair cells, amplifying auditory signals. The discovery sheds light on the mechanism of hearing and could lead to new treatments for hearing loss.
Sensory hair cells convert mechanical energy into electrical signals through transduction channels. A new report identifies NompC as a vertebrate homologue of a previously known channel, required for mechanosensation in zebrafish and possibly other animals.
Researchers at Scripps Research Institute discovered the first noxious cold receptor, ANKTM1, which detects 'noxious' cold temperatures and allows an influx of positively charged ions into axons. This finding may lead to pain-modulating drugs.
Researchers at Scripps Research Institute have identified the first temperature-sensing molecule found in keratinocytes, the major type of cell in the skin, which can detect warm and hot temperatures above 33°C. This discovery opens up new possibilities for pain therapeutics.
A Purdue University researcher has discovered a gene in fruit flies that plays a key role in regulating the flow of calcium into cells. Mutations in this gene suppress the effects of degeneration caused by overactive calcium channels, potentially leading to new treatments for diseases like Alzheimer's.