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Abdallah Hayar

TitleAssociate Professor
InstitutionUniversity of Arkansas for Medical Sciences
DepartmentNeurobiology & Developmental Science, College of Medicine
DivisionNeuro & Devel SFaculty
Address664-2 Biomedical Research II
200 South Cedar
Mail Slot # 847
Little Rock AR 72202
Phone501-686-6362
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    Collapse Research 
    Collapse research activities and funding
    16-EPS3-0013     (GRIFFIN, ROBERT)Sep 18, 2015 - Jan 31, 2021
    NIH/Nat. Cancer Institute - Pass Through: NIH/Nat. Cancer Institute
    RII Track-1: Arkansas ASSET Initiative III
    Role: Co-Investigator
    OIA-145788     (GRIFFIN, ROBERT)Sep 18, 2015 - Jan 31, 2021
    National Science Foundation - Pass Through: Arkansas Economic Development Commission
    RII Track-1: Arkansas ASSET Initiative III
    Role: Co-Investigator
    OIA-1457888     (GRIFFIN, ROBERT)Sep 18, 2015 - Jan 31, 2021
    National Science Foundation - Pass Through: Arkansas Economic Development Commission
    RII Track-1: Arkansas ASSET Initiative III
    Role: Co-Investigator
    P30GM110702     (GARCIA-RILL, EDGAR E.)Jun 10, 2014 - Apr 30, 2020
    NIH
    Center for Translational Neuroscience
    Role: Co-Investigator
    R01HL097107     (RHEE, SUNG W)Mar 15, 2010 - Feb 29, 2016
    NIH
    PSD95 scaffolding of vascular K+ channels in hypertension
    Role: Co-Investigator
    R01CD007876     (HAYAR, ABDALLAH)Mar 1, 2009 - Feb 28, 2012
    NIH/Nat. Inst. on Deafness & Other Communication Disorders - Pass Through: Louisiana State University Health Sciences Center
    Contribution of EPL Interneurons to Olfactory Processing (Incoming Subc w LSU)
    Role: Principal Investigator
    R01DC007123     (HAYAR, ABDALLAH M)Jul 1, 2005 - Jun 30, 2012
    NIH
    External Tufted Cells Coordinate Olfactory Bulb Activity
    Role: Principal Investigator
    P20GM103425     (GARCIA-RILL, EDGAR E.)Sep 16, 2004 - Apr 30, 2015
    NIH
    Center for Translational Neuroscience
    Role: Co-Investigator
    P20RR020146     (GARCIA-RILL, EDGAR E.)Sep 16, 2004 - Apr 30, 2014
    NIH
    Center for Translational Neuroscience
    Role: Co-Investigator
    R03DC006356     (HAYAR, ABDALLAH)May 1, 2004 - Apr 30, 2009
    NIH/Nat. Inst. on Deafness & Other Communication Disorders
    Synchronous Bursting Among Juxtaglomerular Neurons
    Role: Principal Investigator
    R01NS020246     (GARCIA-RILL, EDGAR E.)Mar 1, 1984 - Aug 31, 2014
    NIH
    Central Modulation of Rhythms
    Role: Co-Investigator

    Collapse Bibliographic 
    Collapse selected publications
    Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Faculty can login to make corrections and additions. Don't see publications published under other names? Login to add alternative names.
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    1. Sridharan V, Johnson KA, Landes RD, Cao M, Singh P, Wagoner G, Hayar A, Sprick ED, Eveld KA, Bhattacharyya A, Krager KJ, Aykin-Burns N, Weiler H, Fernández JA, Griffin JH, Boerma M. Sex-dependent effects of genetic upregulation of activated protein C on delayed effects of acute radiation exposure in the mouse heart, small intestine, and skin. PLoS One. 2021; 16(5):e0252142. PMID: 34029348.
      View in: PubMed
    2. Carter G, Govindan RB, Brown G, Heimann C, Hayes H, Thostenson JC, Dornhoffer J, Brozoski T, Kimbrell TA, Hayar A, Shihabuddin B, James GA, Garcia-Rill E, Padala PR, Mennemeier M. Change in EEG Activity is Associated with a Decrease in Tinnitus Awareness after rTMS. Front Neurol Neurosci Res. 2021; 2. PMID: 34263262.
      View in: PubMed
    3. Jung S, Harris N, Niyonshuti II, Jenkins SV, Hayar AM, Watanabe F, Jamshidi-Parsian A, Chen J, Borrelli MJ, Griffin RJ. Photothermal Response Induced by Nanocage-Coated Artificial Extracellular Matrix Promotes Neural Stem Cell Differentiation. Nanomaterials (Basel). 2021 May 04; 11(5). PMID: 34064443.
      View in: PubMed
    4. Sharma KD, Schaal D, Kore RA, Hamzah RN, Pandanaboina SC, Hayar A, Griffin RJ, Srivatsan M, Reyna NS, Xie JY. Glioma-derived exosomes drive the differentiation of neural stem cells to astrocytes. PLoS One. 2020; 15(7):e0234614. PMID: 32649728.
      View in: PubMed
    5. Alghazali KM, Hamzah RN, Nima ZA, Steiner R, Dhar M, Anderson DE, Hayar A, Griffin RJ, Biris AS. Plasmonic Nanofactors as Switchable Devices to Promote or Inhibit Neuronal Activity and Function. Nanomaterials (Basel). 2019 Jul 18; 9(7). PMID: 31323847.
      View in: PubMed
    6. Alexander TC, Kiffer F, Groves T, Anderson J, Wang J, Hayar A, Chen MT, Rodriguez A, Allen AR. Effects of thioTEPA chemotherapy on cognition and motor coordination. Synapse. 2019 06; 73(6):e22085. PMID: 30586195.
      View in: PubMed
    7. Dobretsov M, Hayar A, Kockara NT, Kozhemyakin M, Light KE, Patyal P, Pierce DR, Wight PA. A Transgenic Mouse Model to Selectively Identify a3 Na,K-ATPase Expressing Cells in the Nervous System. Neuroscience. 2019 02 01; 398:274-294. PMID: 30031123.
      View in: PubMed
    8. Dobretsov M, Petkau G, Hayar A, Petkau E. Clock Scan Protocol for Image Analysis: ImageJ Plugins. J Vis Exp. 2017 06 19; (124). PMID: 28654075.
      View in: PubMed
    9. Light KE, Hayar AM, Pierce DR. Electrophysiological and Immunohistochemical Evidence for an Increase in GABAergic Inputs and HCN Channels in Purkinje Cells that Survive Developmental Ethanol Exposure. Cerebellum. 2015 Aug; 14(4):398-412. PMID: 25667035.
      View in: PubMed
    10. Lin XB, Pierce DR, Light KE, Hayar A. The fine temporal structure of the rat licking pattern: what causes the variabiliy in the interlick intervals and how is it affected by the drinking solution? Chem Senses. 2013 Oct; 38(8):685-704. PMID: 23902635.
      View in: PubMed
    11. Hayar AM, Hamilton KA. External plexiform layer interneurons integrate synaptic inputs that are correlated with the bursting activity of surrounding mitral/tufted cells. 42nd Annual Meeting of the Society for Neuroscience. 2013.
    12. Lin XB, Pierce DR, Light KE, Hayar AM. The Fine Temporal Structure of the Rat Licking Pattern: What Causes the Variability in the Interlick Intervals and How is it Affected by the Drinking Solution?. 35th Annual Meeting of the Association for Chemoreception Sciences. 2013.
    13. Simon C, Hayar A, Garcia-Rill E. Developmental changes in glutamatergic fast synaptic neurotransmission in the dorsal subcoeruleus nucleus. Sleep. 2012 Mar 01; 35(3):407-17. PMID: 22379247.
      View in: PubMed
    14. Lin XB, Pierce DR, Light KE, Hayar AM. Rhythmic licking behavior is altered in adult rats that received postnatal ethanol exposure. 35th Annual Meeting of the Research Society on Alcoholism. 2012.
    15. Watts JL, Yadlapalli K, Hayar AM, Al-Chaer ED. Minocycline alters neuronal plasticity in rats with colon inflammation. 41st Annual Meeting of the Society for Neuroscience. 2011.
    16. Myal S, Hayar AM, Buchanan R, Garcia-Rill E. Effect of repetitive transcranial magnetic stimulation (rTMS) on nicotine-induced suppression of P13 auditory evoked potential. 41st Annual Meeting of the Society for Neuroscience. 2011.
    17. Simon C, Hayar A, Garcia-Rill E. Responses of developing pedunculopontine neurons to glutamate receptor agonists. J Neurophysiol. 2011 Apr; 105(4):1918-31. PMID: 21346216.
      View in: PubMed
    18. Pierce DR, Hayar A, Williams DK, Light KE. Olivary climbing fiber alterations in PN40 rat cerebellum following postnatal ethanol exposure. Brain Res. 2011 Mar 10; 1378:54-65. PMID: 21241681.
      View in: PubMed
    19. Yadlapalli K, Hayar AM, Al-Chaer ED. Differential Effects of ATP on the Electrophysiological Properties of Postsynaptic Dorsal Horn Neurons in the Rat. 40th Annual Meeting of the Society for Neuroscience. 2010.
    20. Pierce DR, Hayar A, Williams DK, Light KE. Developmental alterations in olivary climbing fiber distribution following postnatal ethanol exposure in the rat. Neuroscience. 2010 Sep 01; 169(3):1438-48. PMID: 20542091.
      View in: PubMed
    21. Simon C, Kezunovic N, Ye M, Hyde J, Hayar A, Williams DK, Garcia-Rill E. Gamma band unit activity and population responses in the pedunculopontine nucleus. J Neurophysiol. 2010 Jul; 104(1):463-74. PMID: 20463196.
      View in: PubMed
    22. Hayar A, Charlesworth A, Garcia-Rill E. Oocyte triplet pairing for electrophysiological investigation of gap junctional coupling. J Neurosci Methods. 2010 May 15; 188(2):280-6. PMID: 20230857.
      View in: PubMed
    23. Ye M, Hayar A, Strotman B, Garcia-Rill E. Cholinergic modulation of fast inhibitory and excitatory transmission to pedunculopontine thalamic projecting neurons. J Neurophysiol. 2010 May; 103(5):2417-32. PMID: 20181729.
      View in: PubMed
    24. Jeradeh-Boursoulian F, Hayar A. Ethanol Reduces Olfactory Bulb Output by Reducing Excitatory Drive to Mitral/Tufted Cells. 2010.
    25. Dong HW, Hayar A, Callaway J, Yang XH, Nai Q, Ennis M. Group I mGluR activation enhances Ca(2+)-dependent nonselective cation currents and rhythmic bursting in main olfactory bulb external tufted cells. J Neurosci. 2009 Sep 23; 29(38):11943-53. PMID: 19776280.
      View in: PubMed
    26. Heister DS, Hayar A, Garcia-Rill E. Cholinergic modulation of GABAergic and glutamatergic transmission in the dorsal subcoeruleus: mechanisms for REM sleep control. Sleep. 2009 Sep; 32(9):1135-47. PMID: 19750918.
      View in: PubMed
    27. Dong HW, Heinbockel T, Hamilton KA, Hayar A, Ennis M. Metabotropic glutamate receptors and dendrodendritic synapses in the main olfactory bulb. Ann N Y Acad Sci. 2009 Jul; 1170:224-38. PMID: 19686141.
      View in: PubMed
    28. Ye M, Hayar A, Garcia-Rill E. Cholinergic responses and intrinsic membrane properties of developing thalamic parafascicular neurons. J Neurophysiol. 2009 Aug; 102(2):774-85. PMID: 19474169.
      View in: PubMed
    29. Nai Q, Dong HW, Hayar A, Linster C, Ennis M. Noradrenergic regulation of GABAergic inhibition of main olfactory bulb mitral cells varies as a function of concentration and receptor subtype. J Neurophysiol. 2009 May; 101(5):2472-84. PMID: 19279145.
      View in: PubMed
    30. Hayar A, Light KE, Pierce DR. Coincident inhibitory inputs induce synchronized pauses in the firing of Purkinje cells. 39th Annual Meeting of the Society for Neuroscience. 2009.
    31. Pierce DR, Hayar A, Wiley CA, Light KE. Rat Purkinje cells that survive postnatal ethanol exposure are altered morphologically and physiologically. Alcoholism-Clinical and Experimental Research. 2009; 168A-168A.
    32. Ye M, Hayar A, Strotman B, Garcia-Rill E. Cholinergic modulation of fast synaptic transmission of pedunculopontine thalamic projecting neurons. 39th Annual Meeting of the Society for Neuroscience. 2009.
    33. Hayar A, Gu C, Al-Chaer ED. An improved method for patch clamp recording and calcium imaging of neurons in the intact dorsal root ganglion in rats. J Neurosci Methods. 2008 Aug 15; 173(1):74-82. PMID: 18588915.
      View in: PubMed
    34. Garcia-Rill E, Charlesworth A, Heister D, Ye M, Hayar A. The developmental decrease in REM sleep: the role of transmitters and electrical coupling. Sleep. 2008 May; 31(5):673-90. PMID: 18517037.
      View in: PubMed
    35. Hayar A. Center-surround interactions among neighboring olfactory bulb glomeruli revealed by optical imaging of the spatiotemporal propagation of spontaneous population activity. 38th Annual Meeting of the Society for Neuroscience. 2008.
    36. Ennis M, Hayar A. The Senses: A Comprehensive Reference. Physiology of the Main Olfactory Bulb. 2008; Vol 4, pp 641-686.
    37. Karnup SV, Hayar A. New Research on Neuronal Networks (Momoka Yoshida and Haruka Sato, editors). Neuronal modules of the olfactory bulb. 2008; 1, pp 1-54.
    38. Burkovetskaya M, Hayar A, Karpuk N, Kielian T. Characterization of Astrocyte Activation in Acute Brain Slices from Mice Harboring Brain Abscesses. American Society for Neurochemistry (ASN). 2008.
    39. Karpuk N, Hayar A. Activation of postsynaptic GABAB receptors modulates the bursting pattern and synaptic activity of olfactory bulb juxtaglomerular neurons. J Neurophysiol. 2008 Jan; 99(1):308-19. PMID: 18032562.
      View in: PubMed
    40. Garcia-Rill E, Heister DS, Ye M, Charlesworth A, Hayar A. Electrical coupling: novel mechanism for sleep-wake control. Sleep. 2007 Nov; 30(11):1405-14. PMID: 18041475.
      View in: PubMed
    41. Dong HW, Hayar A, Ennis M. Activation of Group I mGluRs enhances rhythmic bursting and nonselective cation currents in olfactory bulb external tufted cells. 37th Annual Meeting of the Society for Neuroscience. 2007.
    42. Ye M, Hayar A, Garcia-Rill E. Electrical Coupling in Pedunculopontine (PPN) Nucleus Neurons. (37th Annual Meeting of the Society for Neuroscience. 37th Annual Meeting of the Society for Neuroscience. 2007.
    43. Heister D, Hayar A, Garcia-Rill E. Differentiating SubCoeruleus neurons by responses to carbachol and developmental changes in resistance. 37th Annual Meeting of the Society for Neuroscience. 2007.
    44. Al-Chaer ED, Gu C, Hayar A. An improved method for patch clamp recording of neurons in the intact dorsal root ganglion (DRG). 37th Annual Meeting of the Society for Neuroscience. 2007.
    45. Karpuk N, Hayar A. Activation of postsynaptic GABAB receptors directly modulates the bursting pattern and synaptic activity of olfactory bulb juxtaglomerular neurons. 37th Annual Meeting of the Society for Neuroscience. 2007.
    46. Nai Q, Dong HW, Hayar A, Linster C, Ennis M. Activation of alpha1 and alpha2 noradrenergic receptors differentially regulate GABAergic inhibition of mitral cells in the main olfactory bulb. 37th Annual Meeting of the Society for Neuroscience. 2007.
    47. Hayar A. Spontaneous population activity revealed by calcium- and voltage-sensitive dyes in the neuropil of olfactory bulb glomeruli in vitro. 37th Annual Meeting of the Society for Neuroscience. 2007.
    48. Hayar A, Ennis M. Endogenous GABA and glutamate finely tune the bursting of olfactory bulb external tufted cells. J Neurophysiol. 2007 Aug; 98(2):1052-6. PMID: 17567771.
      View in: PubMed
    49. Dong HW, Hayar A, Ennis M. Activation of group I metabotropic glutamate receptors on main olfactory bulb granule cells and periglomerular cells enhances synaptic inhibition of mitral cells. J Neurosci. 2007 May 23; 27(21):5654-63. PMID: 17522310.
      View in: PubMed
    50. Heister DS, Hayar A, Charlesworth A, Yates C, Zhou YH, Garcia-Rill E. Evidence for Electrical Coupling in the SubCoeruleus (SubC) Nucleus. J Neurophysiol. 2007 Apr; 97(4):3142-7. PMID: 17215497.
      View in: PubMed
    51. Ennis M, Hamilton KA, Hayar A. Handbook of Neurochemistry and Molecular Neurobiology. Neurochemistry of the main olfactory system. 2007; Vol. 20, pp 137-204.
    52. Karnup SV, Hayar A, Shipley MT, Kurnikova MG. Spontaneous field potentials in the glomeruli of the olfactory bulb: the leading role of juxtaglomerular cells. Neuroscience. 2006 Sep 29; 142(1):203-21. PMID: 16876327.
      View in: PubMed
    53. Ennis M, Zhu M, Heinbockel T, Hayar A. Olfactory nerve-evoked, metabotropic glutamate receptor-mediated synaptic responses in rat olfactory bulb mitral cells. J Neurophysiol. 2006 Apr; 95(4):2233-41. PMID: 16394070.
      View in: PubMed
    54. Hayar A, Bryant JL, Boughter JD, Heck DH. A low-cost solution to measure mouse licking in an electrophysiological setup with a standard analog-to-digital converter. J Neurosci Methods. 2006 Jun 15; 153(2):203-7. PMID: 16364450.
      View in: PubMed
    55. Hayar A, Shipley MT, Ennis M. Olfactory bulb external tufted cells are synchronized by multiple intraglomerular mechanisms. J Neurosci. 2005 Sep 07; 25(36):8197-208. PMID: 16148227.
      View in: PubMed
    56. Hamilton KA, Heinbockel T, Ennis M, Szabó G, Erdélyi F, Hayar A. Properties of external plexiform layer interneurons in mouse olfactory bulb slices. Neuroscience. 2005; 133(3):819-29. PMID: 15896912.
      View in: PubMed
    57. Hayar A, Karnup S, Ennis M, Shipley MT. External tufted cells: a major excitatory element that coordinates glomerular activity. J Neurosci. 2004 Jul 28; 24(30):6676-85. PMID: 15282270.
      View in: PubMed
    58. Hayar A, Karnup S, Shipley MT, Ennis M. Olfactory bulb glomeruli: external tufted cells intrinsically burst at theta frequency and are entrained by patterned olfactory input. J Neurosci. 2004 Feb 04; 24(5):1190-9. PMID: 14762137.
      View in: PubMed
    59. Aungst JL, Heyward PM, Puche AC, Karnup SV, Hayar A, Szabo G, Shipley MT. Centre-surround inhibition among olfactory bulb glomeruli. Nature. 2003 Dec 11; 426(6967):623-9. PMID: 14668854.
      View in: PubMed
    60. Guyenet PG, Stornetta RL, Schreihofer AM, Pelaez NM, Hayar A, Aicher S, Llewellyn-Smith IJ. Opioid signalling in the rat rostral ventrolateral medulla. Clin Exp Pharmacol Physiol. 2002 Mar; 29(3):238-42. PMID: 11906491.
      View in: PubMed
    61. Ennis M, Zhou FM, Ciombor KJ, Aroniadou-Anderjaska V, Hayar A, Borrelli E, Zimmer LA, Margolis F, Shipley MT. Dopamine D2 receptor-mediated presynaptic inhibition of olfactory nerve terminals. J Neurophysiol. 2001 Dec; 86(6):2986-97. PMID: 11731555.
      View in: PubMed
    62. Hayar A, Heyward PM, Heinbockel T, Shipley MT, Ennis M. Direct excitation of mitral cells via activation of alpha1-noradrenergic receptors in rat olfactory bulb slices. J Neurophysiol. 2001 Nov; 86(5):2173-82. PMID: 11698509.
      View in: PubMed
    63. Hayar A, Guyenet PG. Prototypical imidazoline-1 receptor ligand moxonidine activates alpha2-adrenoceptors in bulbospinal neurons of the RVL. J Neurophysiol. 2000 Feb; 83(2):766-76. PMID: 10669492.
      View in: PubMed
    64. Hayar A, Guyenet PG. Alpha2-adrenoceptor-mediated presynaptic inhibition in bulbospinal neurons of rostral ventrolateral medulla. Am J Physiol. 1999 09; 277(3):H1069-80. PMID: 10484430.
      View in: PubMed
    65. Hayar A, Guyenet PG. Pre- and postsynaptic inhibitory actions of methionine-enkephalin on identified bulbospinal neurons of the rat RVL. J Neurophysiol. 1998 Oct; 80(4):2003-14. PMID: 9772256.
      View in: PubMed
    66. Hayar A, Poulter MO, Pelkey K, Feltz P, Marshall KC. Mesencephalic trigeminal neuron responses to gamma-aminobutyric acid. Brain Res. 1997 Apr 04; 753(1):120-7. PMID: 9125438.
      View in: PubMed
    67. Hayar A, Feltz P, Piguet P. Adrenergic responses in silent and putative inhibitory pacemaker-like neurons of the rat rostral ventrolateral medulla in vitro. Neuroscience. 1997 Mar; 77(1):199-217. PMID: 9044387.
      View in: PubMed
    68. Jung M, Michaud JC, Steinberg R, Barnouin MC, Hayar A, Mons G, Souilhac J, Emonds-Alt X, Soubrié P, Le Fur G. Electrophysiological, behavioural and biochemical evidence for activation of brain noradrenergic systems following neurokinin NK3 receptor stimulation. Neuroscience. 1996 Sep; 74(2):403-14. PMID: 8865192.
      View in: PubMed
    69. Hayar A, Piguet P, Feltz P. GABA-induced responses in electrophysiologically characterized neurons within the rat rostro-ventrolateral medulla in vitro. Brain Res. 1996 Feb 19; 709(2):173-83. PMID: 8833753.
      View in: PubMed
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