Oocyte triplet pairing for electrophysiological investigation of gap junctional couplingAbdallah Hayar
Dept of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Center for Translational Neuroscience, Little Rock, AR 72205, United States
J Neurosci Methods 188:280-6. 2010
..In this study, we show the example of testing the gap junctional properties among 3 oocytes, 2 of which are expressing rat connexin36...
- Endogenous GABA and glutamate finely tune the bursting of olfactory bulb external tufted cells
Abdallah Hayar
Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA
J Neurophysiol 98:1052-6. 2007
..We suggest that ET cell excitatory and inhibitory inputs may be encoded as a change in the pattern of spike bursting in ET cells, which together with mitral/tufted cells constitute the output circuit of the olfactory bulb...
- An improved method for patch clamp recording and calcium imaging of neurons in the intact dorsal root ganglion in rats
Abdallah Hayar
Center for Translational Neuroscience, Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR, United States
J Neurosci Methods 173:74-82. 2008
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- Cholinergic modulation of fast inhibitory and excitatory transmission to pedunculopontine thalamic projecting neurons
Meijun Ye
Center for Translational Neuroscience, Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
J Neurophysiol 103:2417-32. 2010
..These results provide possible implications for the generation of different frequency oscillations in PPN thalamic projecting neurons during distinct sleep-wake states...
- The developmental decrease in REM sleep: the role of transmitters and electrical coupling
Edgar Garcia-Rill
Center for Translational Neuroscience, Department of Neurobiology and Developmental Science, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
Sleep 31:673-90. 2008
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- Cholinergic modulation of GABAergic and glutamatergic transmission in the dorsal subcoeruleus: mechanisms for REM sleep control
David S Heister
Center for Translational Neuroscience, Department of Neurobiology and Developmental Sciences, University ofArkansas for Medical Sciences, Little Rock, AR 72205, USA
Sleep 32:1135-47. 2009
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- Cholinergic responses and intrinsic membrane properties of developing thalamic parafascicular neurons
Meijun Ye
Center for Translational Neuroscience, Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA
J Neurophysiol 102:774-85. 2009
..Pf cells tend to show decreased excitability and cholinergic activation during the developmental decrease in REM sleep...
- Evidence for Electrical Coupling in the SubCoeruleus (SubC) Nucleus
David S Heister
Center for Translational Neuroscience, Dept of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, 4301 W Markham St, Slot 847, Little Rock, AR 72205, USA
J Neurophysiol 97:3142-7. 2007
..The presence of electrical coupling in the SubC introduces a novel potential mechanism of action for the regulation of sleep-wake states...
- Activation of postsynaptic GABAB receptors modulates the bursting pattern and synaptic activity of olfactory bulb juxtaglomerular neurons
Nikolay Karpuk
Deptepartment of Neurobiology and Developmental Sciences, Center for Translational Neuroscience, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, USA
J Neurophysiol 99:308-19. 2008
..Thus the postsynaptic GABA(B)-Rs on ET cells may play an important role in shaping the activation pattern of the glomeruli during olfactory coding...
- Electrical coupling: novel mechanism for sleep-wake control
Edgar Garcia-Rill
Center for Translational Neuroscience, Department of Neurobiology and Dev Sci, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
Sleep 30:1405-14. 2007
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- Responses of developing pedunculopontine neurons to glutamate receptor agonists
Christen Simon
Center for Translational Neuroscience, Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, 4301 West Markham St, Little Rock, AR 72205, USA
J Neurophysiol 105:1918-31. 2011
..In contrast, NMDA application produced no changes in the PPR or mEPSCs. Changes in glutamatergic excitability of PPN cell types could underlie the developmental decrease in REM sleep...
- Developmental changes in glutamatergic fast synaptic neurotransmission in the dorsal subcoeruleus nucleus
Christen Simon
Center for Translational Neuroscience, Department of Neurobiology and Developmental Sciences, University of Arkansas for Medical Sciences, Little Rock, AR 72205, USA
Sleep 35:407-17. 2012
..We tested the hypothesis that developmental changes in the GLU excitability of SubCD neurons could underlie the developmental decrease in REM sleep that occurs in the rat from postnatal days 10-30...
- Olfactory nerve-evoked, metabotropic glutamate receptor-mediated synaptic responses in rat olfactory bulb mitral cells
Matthew Ennis
Department of Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA
J Neurophysiol 95:2233-41. 2006
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- Olfactory bulb external tufted cells are synchronized by multiple intraglomerular mechanisms
Abdallah Hayar
Department of Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, Tennessee 38163, USA
J Neurosci 25:8197-208. 2005
..These findings suggest that coordinated synaptic transmission and gap junction coupling synchronize the spontaneous bursting of ET cells of the same glomerulus...
- External tufted cells: a major excitatory element that coordinates glomerular activity
Abdallah Hayar
Department of Anatomy and Neurobiology, Program in Neuroscience, University of Maryland, Baltimore, Maryland 21201, USA
J Neurosci 24:6676-85. 2004
..The findings suggest that multiple, synchronously active ET cells synaptically converge onto single PG/SA cells. Synchronous ET cell bursting may function to amplify transient sensory input and coordinate glomerular output...
- Olfactory bulb glomeruli: external tufted cells intrinsically burst at theta frequency and are entrained by patterned olfactory input
Abdallah Hayar
Department of Anatomy and Neurobiology, Program in Neuroscience, University of Maryland, Baltimore, Maryland 21201, USA
J Neurosci 24:1190-9. 2004
..ET cell bursts were entrained to ON stimuli delivered over the range of theta frequencies. Thus, ET cells appear to be tuned to the frequency of sniffing...
- Activation of group I metabotropic glutamate receptors on main olfactory bulb granule cells and periglomerular cells enhances synaptic inhibition of mitral cells
Hong Wei Dong
Department of Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, Tennessee 38163, USA
J Neurosci 27:5654-63. 2007
..We speculate that mGluRs amplify spike-driven lateral inhibition through the mitral-to-granule cell circuit, whereas GL mGluRs may play a more important role in amplifying intraglomerular inhibition after subthreshold input...
- A low-cost solution to measure mouse licking in an electrophysiological setup with a standard analog-to-digital converter
Abdallah Hayar
Department of Anatomy and Neurobiology, University of Tennessee Health Science Center, 855 Monroe Avenue, Suite 515, Memphis, TN 38163, USA
J Neurosci Methods 153:203-7. 2006
..This method does not produce any significant electrical artifacts and can be combined with electrophysiological measurements of single unit activity from neurons involved in the control of the licking behavior...
- Opioid signalling in the rat rostral ventrolateral medulla
Patrice G Guyenet
Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
Clin Exp Pharmacol Physiol 29:238-42. 2002
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