Research Topics
| N ChaudhariSummaryAffiliation: University of Miami Country: USA Publications
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Detail Information
Publications
A metabotropic glutamate receptor variant functions as a taste receptorN Chaudhari
Program in Neuroscience, University of Miami School of Medicine, P O Box 016430 R430, Miami, Florida 33101, USA
Nat Neurosci 3:113-9. 2000..The receptor couples negatively to a cAMP cascade and shows an unusual concentration-response relationship. The similarity of its properties to MSG taste suggests that this receptor is a taste receptor for glutamate...
Multiple pathways for signaling glutamate taste in rodentsNirupa Chaudhari
Department of Physiology and Biophysics, University of Miami School of Medicine, Miami, FL 33136, USA
Chem Senses 30:i29-30. 2005
Interaction between the second messengers cAMP and Ca2+ in mouse presynaptic taste cellsCRAIG D ROBERTS
Neuroscience Program, University of Miami Miller School of Medicine, Miami, FL 33136, USA
J Physiol 587:1657-68. 2009..Collectively, these data demonstrate cross-talk between cAMP and Ca(2+) signalling in a subclass of taste cells that form synapses with gustatory fibres and may integrate tastant-evoked signals...
Molecular and physiological evidence for glutamate (umami) taste transduction via a G protein-coupled receptorN Chaudhari
Department of Physiology and Biophysics, University of Miami School of Medicine, Florida 33101, USA
Ann N Y Acad Sci 855:398-406. 1998..In patch-clamp studies, glutamate evokes two types of currents, similar to those elicited by N-methyl-D-aspartate (NMDA) and L-AP4. We speculate upon the significance of two glutamate receptor pathways in taste buds...
Adenylyl cyclase expression and modulation of cAMP in rat taste cellsTatjana Abaffy
Department of Physiology and Biophysics, University of Miami School of Medicine, Miami, Florida 33101, USA
Am J Physiol Cell Physiol 284:C1420-8. 2003..Whether AC8 is directly involved in signal transduction of umami taste remains to be established...
Processing umami and other tastes in mammalian taste budsStephen D Roper
Department of Physiology and Biophysics, and Program in Neuroscience, Miller School of Medicine, University of Miami, Miami, Florida 33136, USA
Ann N Y Acad Sci 1170:60-5. 2009..The following paragraphs summarize current thinking about how taste signals generally, and umami taste in particular, are processed in taste buds...
The cell biology of tasteNirupa Chaudhari
Department of Physiology and Biophysics, and Program in Neurosciences, University of Miami Miller School of Medicine, Miami, FL 33136, USA
J Cell Biol 190:285-96. 2010..This review discusses the functional classes of taste cells, their cell biology, and current thinking on how taste information is transmitted to the brain...
Umami responses in mouse taste cells indicate more than one receptorYutaka Maruyama
Department of Physiology and Biophysics, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
J Neurosci 26:2227-34. 2006..Furthermore, umami responses were still observed in mutant mice lacking T1R3. A full explanation of umami taste transduction may involve novel combinations of the proposed receptors and/or as-yet-undiscovered taste receptors...
Tastants evoke cAMP signal in taste buds that is independent of calcium signalingKristina R Trubey
Dept. of Physiology and Biophysics (R430 Univ. of Miami Miller School of Medicine, 1600 NW 10th Ave, Miami, FL 33136, USA
Am J Physiol Cell Physiol 291:C237-44. 2006..Our results suggest that tastant-evoked cAMP signals are not simply a secondary consequence of calcium modulation. Instead, cAMP and released Ca2+ may represent independent second messenger signals downstream of taste receptors...
Liposome-mediated transfection of mature taste cellsAna Marie Landin
Department of Physiology and Biophysics, University of Miami School of Medicine, 1600 NW 10th Ave, Miami, FL 33136, USA
J Neurobiol 65:12-21. 2005..These studies should permit ex vivo strategies for studying development and cellular function in taste cells...
Acid-sensing ion channel-2 is not necessary for sour taste in miceTrevor A Richter
Department of Physiology and Biophysics, University of Miami School of Medicine, Miami, Florida 33136, USA
J Neurosci 24:4088-91. 2004..Our results indicate that ASIC2 is not required for acid taste in mice, and that if a universal mammalian acid taste transduction mechanism exists, it likely uses other acid-sensitive receptors or ion channels...
Taste receptors for umami: the case for multiple receptorsNirupa Chaudhari
Department of Physiology and Biophysics, University of Miami, FL 33136, USA
Am J Clin Nutr 90:738S-742S. 2009..This receptor diversity may underlie the complex perception of umami, with different mixtures of amino acids, peptides, and nucleotides yielding subtly distinct taste qualities...
Inward rectifier channel, ROMK, is localized to the apical tips of glial-like cells in mouse taste budsGennady Dvoryanchikov
Department of Physiology and Biophysics, University of Miami Miller School of Medicine, Miami, FL 33136, USA
J Comp Neurol 517:1-14. 2009..We propose that in taste buds, ROMK in type I/glial-like cells may serve a homeostatic function, excreting excess K(+) through the apical pore, and allowing excitable taste cells to maintain a hyperpolarized resting membrane potential...
Imaging cyclic AMP changes in pancreatic islets of transgenic reporter miceJoung Woul Kim
Department of Physiology and Biophysics, University of Miami School of Medicine, Miami, Florida, United States of America
PLoS ONE 3:e2127. 2008..e. in their native physiological context. Reporter expression in other tissues (such as the heart) where cAMP plays a critical regulatory role, will permit novel biomedical approaches...
Breadth of tuning and taste coding in mammalian taste budsSeth M Tomchik
Department of Physiology and Biophysics, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
J Neurosci 27:10840-8. 2007....
Biogenic amine synthesis and uptake in rodent taste budsGennady Dvoryanchikov
Department of Physiology and Biophysics, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
J Comp Neurol 505:302-13. 2007..In summary, we postulate that aminergic presynaptic taste cells synthesize only 5-HT, whereas NE (perhaps secreted by sympathetic fibers) may be concentrated and repackaged for secretion...
The role of pannexin 1 hemichannels in ATP release and cell-cell communication in mouse taste budsYi Jen Huang
Department of Physiology and Biophysics, Miller School of Medicine, University of Miami, Miami, FL 33136, USA
Proc Natl Acad Sci U S A 104:6436-41. 2007..They also indicate a route for cell-cell communication and signal processing within the taste bud...
Separate populations of receptor cells and presynaptic cells in mouse taste budsRichard A DeFazio
Department of Physiology and Biophysics, University of Miami Miller School of Medicine, Miami, Florida 33136, USA
J Neurosci 26:3971-80. 2006..These data demonstrate the existence of at least two molecularly distinct functional classes of taste cells: receptor cells and synapse-forming cells...
Faithful expression of GFP from the PLCbeta2 promoter in a functional class of taste receptor cellsJoung Woul Kim
Department of Physiology and Biophysics, University of Miami Miller School of Medicine RMSB 4040, 1600 NW 10th Avenue, Miami, FL 33136, USA
Chem Senses 31:213-9. 2006..These PLCbeta2 promoter-GFP transgenic lines promise to be useful for studying taste transduction, sensory signal processing, and taste bud development...
Acid-sensitive two-pore domain potassium (K2P) channels in mouse taste budsTrevor A Richter
Dept. of Physiology and Biophysics, University of Miami School of Medicine, 1600 NW 10th Avenue, Miami, FL 33136, USA
J Neurophysiol 92:1928-36. 2004..However, our results do not unambiguously identify any one channel as the acid taste transducer...
Oxytocin signaling in mouse taste budsMichael S Sinclair
Program in Neurosciences, Department of Physiology and Biophysics, University of Miami Miller School of Medicine, Miami, Florida, United States of America
PLoS ONE 5:e11980. 2010..Mutant mice lacking OXT (OXT knockout) overconsume salty and sweet (i.e. sucrose, saccharin) solutions. We asked if OXT might also act on taste buds via its receptor, OXTR...
Inward rectifier channel, ROMK, is localized to the apical tips of glial-like cells in mouse taste budsGennady Dvoryanchikov
Department of Physiology and Biophysics, University of Miami Miller School of Medicine, Miami, FL 33136
J Comp Neurol 517:spc1. 2009..J. Comp. Neurol. 517:1-14, 2009. (c) 2009 Wiley-Liss, Inc...
