Linda Hayward

Summary

Affiliation: University of Florida
Country: USA

Publications

  1. ncbi request reprint Evidence for alpha-2 adrenoreceptor modulation of arterial chemoreflexes in the caudal solitary nucleus of the rat
    L F Hayward
    Department of Physiological Sciences, University of Florida College of Veterinary Medicine, Gainesville, Florida 32610 0144, USA
    Am J Physiol Regul Integr Comp Physiol 281:R1464-73. 2001
  2. pmc Midbrain modulation of the cardiac baroreflex involves excitation of lateral parabrachial neurons in the rat
    Linda F Hayward
    University of Florida, College of Veterinary Medicine, Department of Physiological Sciences and McKnight Brain Institute, PO 100144 Gainesville, FL 32610 1044, USA
    Brain Res 1145:117-27. 2007
  3. ncbi request reprint Activation of the dorsal periaqueductal gray in the rat induces Fos-like immunoreactivity in select non-cholinergic mesopontine neurons
    Linda F Hayward
    Department of Physiological Sciences, University of Florida, College of Veterinary Medicine, 1600 SW Archer Road, PO 100144, Gainesville, FL 32610 0144, USA
    Neurosci Lett 360:5-8. 2004
  4. ncbi request reprint Parabrachial neurons mediate dorsal periaqueductal gray evoked respiratory responses in the rat
    Linda F Hayward
    Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32601, USA
    J Appl Physiol 96:1146-54. 2004
  5. ncbi request reprint Increased c-Fos expression in select lateral parabrachial subnuclei following chemical versus electrical stimulation of the dorsal periaqueductal gray in rats
    Linda F Hayward
    Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, 1600 SW Archer Rd, PO 100144, Gainesville 32601 0144, USA
    Brain Res 974:153-66. 2003
  6. ncbi request reprint alpha(2)-Adrenergic receptors in NTS facilitate baroreflex function in adult spontaneously hypertensive rats
    Linda F Hayward
    Cardiovascular Center and Department of Internal Medicine, University of Iowa and Research Service of the Department of Veterans Affairs Medical Center, Iowa City, Iowa 52242, USA
    Am J Physiol Heart Circ Physiol 282:H2336-45. 2002
  7. ncbi request reprint Respiratory response to activation or disinhibition of the dorsal periaqueductal gray in rats
    Linda F Hayward
    Department of Physiological Sciences, University of Florida College of Veterinary Medicine, Gainesville, Florida 32601, USA
    J Appl Physiol 94:913-22. 2003
  8. ncbi request reprint c-Fos expression in the midbrain periaqueductal gray after chemoreceptor and baroreceptor activation
    Linda F Hayward
    Department of Physiological Sciences, University of Florida College of Veterinary Medicine, Gainesville, FL 32601, USA
    Am J Physiol Heart Circ Physiol 283:H1975-84. 2002
  9. doi request reprint Influence of dorsal periaqueductal gray activation on respiratory occlusion reflexes in rats
    Weirong Zhang
    Department of Physiological Sciences, University of Florida, Gainesville, FL 32610, USA
    Auton Neurosci 150:62-9. 2009
  10. ncbi request reprint Respiratory responses elicited by rostral versus caudal dorsal periaqueductal gray stimulation in rats
    Weirong Zhang
    Department of Physiological Sciences, University of Florida, Gainesville FL 32610, United States
    Auton Neurosci 134:45-54. 2007

Research Grants

  1. PERIAQUEDUCTAL GRAY MODULATION OF SYMPATHETIC DRIVE
    Linda Hayward; Fiscal Year: 2002
  2. Supramedullary control of respiration
    Linda Hayward; Fiscal Year: 2007

Collaborators

Detail Information

Publications14

  1. ncbi request reprint Evidence for alpha-2 adrenoreceptor modulation of arterial chemoreflexes in the caudal solitary nucleus of the rat
    L F Hayward
    Department of Physiological Sciences, University of Florida College of Veterinary Medicine, Gainesville, Florida 32610 0144, USA
    Am J Physiol Regul Integr Comp Physiol 281:R1464-73. 2001
    ..The results suggest that the endogenous activation of alpha-2 adrenoreceptors facilitates central processing of chemoreceptor afferent inputs in the cNTS of the rat...
  2. pmc Midbrain modulation of the cardiac baroreflex involves excitation of lateral parabrachial neurons in the rat
    Linda F Hayward
    University of Florida, College of Veterinary Medicine, Department of Physiological Sciences and McKnight Brain Institute, PO 100144 Gainesville, FL 32610 1044, USA
    Brain Res 1145:117-27. 2007
    ..Reflex control of MAP was unchanged with either treatment. These findings suggest that the LPBN area is one of several brainstem regions involved in descending modulation of the cardiac baroreflex function during defensive behavior...
  3. ncbi request reprint Activation of the dorsal periaqueductal gray in the rat induces Fos-like immunoreactivity in select non-cholinergic mesopontine neurons
    Linda F Hayward
    Department of Physiological Sciences, University of Florida, College of Veterinary Medicine, 1600 SW Archer Road, PO 100144, Gainesville, FL 32610 0144, USA
    Neurosci Lett 360:5-8. 2004
    ..These findings suggest that acetylcholine release in during dPAG stimulation does not originate from mesopontine neurons...
  4. ncbi request reprint Parabrachial neurons mediate dorsal periaqueductal gray evoked respiratory responses in the rat
    Linda F Hayward
    Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32601, USA
    J Appl Physiol 96:1146-54. 2004
    ..This finding supports previous work demonstrating that the dorsolateral pons plays a significant role in mediating most physiological adjustments associated with activation of the DPAG...
  5. ncbi request reprint Increased c-Fos expression in select lateral parabrachial subnuclei following chemical versus electrical stimulation of the dorsal periaqueductal gray in rats
    Linda F Hayward
    Department of Physiological Sciences, College of Veterinary Medicine, University of Florida, 1600 SW Archer Rd, PO 100144, Gainesville 32601 0144, USA
    Brain Res 974:153-66. 2003
    ..Finally, our results raise the possibility that neurons in the central lateral subnucleus of the middle and rostral LPBN are integrally involved in descending modulation of sympathetic drive associated with dorsal PAG activation...
  6. ncbi request reprint alpha(2)-Adrenergic receptors in NTS facilitate baroreflex function in adult spontaneously hypertensive rats
    Linda F Hayward
    Cardiovascular Center and Department of Internal Medicine, University of Iowa and Research Service of the Department of Veterans Affairs Medical Center, Iowa City, Iowa 52242, USA
    Am J Physiol Heart Circ Physiol 282:H2336-45. 2002
    ..The reflex regulation of sympathetic outflow to the kidney is less influenced by the altered alpha(2)-adrenoreceptor mechanisms in SHR...
  7. ncbi request reprint Respiratory response to activation or disinhibition of the dorsal periaqueductal gray in rats
    Linda F Hayward
    Department of Physiological Sciences, University of Florida College of Veterinary Medicine, Gainesville, Florida 32601, USA
    J Appl Physiol 94:913-22. 2003
    ..The respiratory change is due in part to a change in brain stem respiratory timing and phasic inspiratory output. In addition, there is an increase in tonic diaphragm activity...
  8. ncbi request reprint c-Fos expression in the midbrain periaqueductal gray after chemoreceptor and baroreceptor activation
    Linda F Hayward
    Department of Physiological Sciences, University of Florida College of Veterinary Medicine, Gainesville, FL 32601, USA
    Am J Physiol Heart Circ Physiol 283:H1975-84. 2002
    ....
  9. doi request reprint Influence of dorsal periaqueductal gray activation on respiratory occlusion reflexes in rats
    Weirong Zhang
    Department of Physiological Sciences, University of Florida, Gainesville, FL 32610, USA
    Auton Neurosci 150:62-9. 2009
    ..These results suggest that dPAG activation modulates the respiratory neural network, resulting in an increased respiratory drive and a decrease in volume-timing reflex sensitivity...
  10. ncbi request reprint Respiratory responses elicited by rostral versus caudal dorsal periaqueductal gray stimulation in rats
    Weirong Zhang
    Department of Physiological Sciences, University of Florida, Gainesville FL 32610, United States
    Auton Neurosci 134:45-54. 2007
    ..The results demonstrate that the magnitude of the respiratory response during and immediately after activation of the caudal dPAG is greater than during rostral dPAG stimulation...
  11. ncbi request reprint Respiratory muscle responses elicited by dorsal periaqueductal gray stimulation in rats
    Weirong Zhang
    Department of Physiological Sciences, University of Florida, Gainesville, Florida 32610, USA
    Am J Physiol Regul Integr Comp Physiol 289:R1338-47. 2005
    ..The changes in respiratory timing suggest rapid onset and sustained poststimulus dPAG modulation of the brain stem respiratory network that includes expiratory muscle recruitment...
  12. ncbi request reprint Hemodynamic responses and c-Fos changes associated with hypotensive hemorrhage: standardizing a protocol for severe hemorrhage in conscious rats
    Joslyn Ahlgren
    Dept of Physiological Sciences, HSC, Univ of Florida, Gainesville, FL 32610, USA
    Am J Physiol Regul Integr Comp Physiol 292:R1862-71. 2007
    ..Our results suggest that HEM at a rate of 1 ml.kg(-1).min(-1) may be most useful for investigating the potential role of the rostral brainstem regions in mediating hemorrhagic decompensation in conscious rats...
  13. pmc Modulation of heart rate variability during severe hemorrhage at different rates in conscious rats
    Karen Porter
    Department of Physiological Sciences, University of Florida, Gainesville, FL 32610, USA
    Auton Neurosci 150:53-61. 2009
    ....
  14. ncbi request reprint Low-dose mirtazapine increases genioglossus activity in the anesthetized rat
    Richard B Berry
    Malcom Randall VAMC University of Florida College of Medicine, Gainesville 32610, USA
    Sleep 28:78-84. 2005
    ..To examine the effects of mirtazapine on genioglossus and diaphragmatic electromyogram activity in the anesthetized rat...

Research Grants8

  1. PERIAQUEDUCTAL GRAY MODULATION OF SYMPATHETIC DRIVE
    Linda Hayward; Fiscal Year: 2002
    ..In the long term it is hoped that the results of these studies will stimulate new investigations into the role of the dlPAG, A5 and the PBN in normal and pathophysiological cardiovascular regulation. ..
  2. Supramedullary control of respiration
    Linda Hayward; Fiscal Year: 2007
    ..Furthermore, the results of this study will provide new insights into understanding of the role of supramedullary structures in modulating respiratory timing. ..