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William Armstead

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William M Armstead; John Riley; Monica S Vavilala
Dopamine prevents impairment of autoregulation after traumatic brain injury in the newborn pig through inhibition of Up-regulation of endothelin-1 and extracellular signal-regulated kinase mitogen-activated protein kinase.
Fang Ji; Nan Ma; John Riley; Zhenhong Wang; William M Armstead; Renyu Liu
Herkinorin dilates cerebral vessels via kappa opioid receptor and cyclic adenosine monophosphate (cAMP) in a piglet model.
William M Armstead; Douglas B Cines; John Riley; Abd Al-Roof Higazi
Combination therapy with glucagon and a novel plasminogen activator inhibitor-1-derived peptide enhances protection against impaired cerebrovasodilation during hypotension after traumatic brain injury through inhibition of ERK and JNK MAPK.

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2013: William M Armstead; John Riley; Monica S Vavilala
Dopamine prevents impairment of autoregulation after traumatic brain injury in the newborn pig through inhibition of Up-regulation of endothelin-1 and extracellular signal-regulated kinase mitogen-activated protein kinase.
Pediatric critical care medicine : a journal of the Society of Critical Care Medicine and the World Federation of Pediatric Intensive and Critical Care Societies 2013;14(2):e103-11.
2013: Fang Ji; Nan Ma; John Riley; Zhenhong Wang; William M Armstead; Renyu Liu
Herkinorin dilates cerebral vessels via kappa opioid receptor and cyclic adenosine monophosphate (cAMP) in a piglet model.
Brain research 2013;1490():95-100.
2012: William M Armstead; Douglas B Cines; John Riley; Abd Al-Roof Higazi
Combination therapy with glucagon and a novel plasminogen activator inhibitor-1-derived peptide enhances protection against impaired cerebrovasodilation during hypotension after traumatic brain injury through inhibition of ERK and JNK MAPK.
Neurological research 2012;34(6):530-7.
2012: William M Armstead; Douglas B Cines; John Riley; Douglas H Smith; Serge Yarovoi; Abd Al-Roof Higazi
tPA-S481A prevents neurotoxicity of endogenous tPA in traumatic brain injury.
Journal of neurotrauma 2012;29(9):1794-802.
2012: William M Armstead; John Riley; Monica S Vavilala
TBI sex dependently upregulates ET-1 to impair autoregulation, which is aggravated by phenylephrine in males but is abrogated in females.
Journal of neurotrauma 2012;29(7):1483-90.
2012: Zhenhong Wang; William M Armstead; Nan Ma; John Riley; Renyu Liu
Salvinorin A administration after global cerebral hypoxia/ischemia preserves cerebrovascular autoregulation via kappa opioid receptor in piglets.
PloS one 2012;7(7):e41724.
2011: William M Armstead; Douglas B Cines; J Willis Kiessling; John Riley; Abd Al-Roof Higazi
tPA contributes to impaired NMDA cerebrovasodilation after traumatic brain injury through activation of JNK MAPK.
Neurological research 2011;33(7):726-33.
2011: William M Armstead; J Willis Kiessling; Douglas B Cines; Abd Al-Roof Higazi
Glucagon protects against impaired NMDA-mediated cerebrovasodilation and cerebral autoregulation during hypotension after brain injury by activating cAMP protein kinase A and inhibiting upregulation of tPA.
Journal of neurotrauma 2011;28(3):451-7.
2011: William M Armstead; John Riley; Douglas B Cines; Abd Al-Roof Higazi
tPA contributes to impairment of ATP and Ca sensitive K channel mediated cerebrovasodilation after hypoxia/ischemia through upregulation of ERK MAPK.
Brain research 2011;1376():88-93.
2011: William M Armstead
Nociceptin/orphanin phenylalanine glutamine (FQ) receptor and cardiovascular disease.
Cardiovascular therapeutics 2011;29(1):23-8.
2011: William M Armstead; J Willis Kiessling; John Riley; W Andrew Kofke; Monica S Vavilala
Phenylephrine infusion prevents impairment of ATP- and calcium-sensitive potassium channel-mediated cerebrovasodilation after brain injury in female, but aggravates impairment in male, piglets through modulation of ERK MAPK upregulation.
Journal of neurotrauma 2011;28(1):105-11.
2010: William M Armstead; J Willis Kiessling; W Andrew Kofke; Monica S Vavilala
Impaired cerebral blood flow autoregulation during posttraumatic arterial hypotension after fluid percussion brain injury is prevented by phenylephrine in female but exacerbated in male piglets by extracellular signal-related kinase mitogen-activated protein kinase upregulation.
Critical care medicine 2010;38(9):1868-74.
2010: William M Armstead; John Riley; J Willis Kiessling; Douglas B Cines; Abd Al-Roof Higazi
Novel plasminogen activator inhibitor-1-derived peptide protects against impairment of cerebrovasodilation after photothrombosis through inhibition of JNK MAPK.
American journal of physiology. Regulatory, integrative and comparative physiology 2010;299(2):R480-5.
2010: William M Armstead; John Riley; J Willis Kiessling; Douglas B Cines; Abd Al-Roof Higazi
PAI-1-derived peptide EEIIMD prevents impairment of cerebrovasodilation by augmenting p38 MAPK upregulation after cerebral hypoxia/ischemia.
American journal of physiology. Heart and circulatory physiology 2010;299(1):H76-80.
2010: William M Armstead; J Willis Kiessling; W Andrew Kofke; Monica S Vavilala
SNP improves cerebral hemodynamics during normotension but fails to prevent sex dependent impaired cerebral autoregulation during hypotension after brain injury.
Brain research 2010;1330():142-50.
2010: Stephanie A Eucker; Brenton D Hoffman; Rahul Natesh; Jill Ralston; William M Armstead; Susan S Margulies
Development of a fluorescent microsphere technique for rapid histological determination of cerebral blood flow.
Brain research 2010;1326():128-34.
2010: William M Armstead; Kumkum Ganguly; J W Kiessling; John Riley; Xiao-Han Chen; Douglas H Smith; Sherman C Stein; Abd Al-Roof Higazi; Douglas B Cines; Khalil Bdeir; Sergei Zaitsev; Vladimir R Muzykantov
Signaling, delivery and age as emerging issues in the benefit/risk ratio outcome of tPA For treatment of CNS ischemic disorders.
Journal of neurochemistry 2010;113(2):303-12.
2010: William M Armstead; J Willis Kiessling; Khalil Bdeir; W Andrew Kofke; Monica S Vavilala
Adrenomedullin prevents sex-dependent impairment of autoregulation during hypotension after piglet brain injury through inhibition of ERK MAPK upregulation.
Journal of neurotrauma 2010;27(2):391-402.
2009: Shaji Philip; Onuma Chaiwat; Yuthana Udomphorn; Anne Moore; Jerry J Zimmerman; William M Armstead; Monica S Vavilala
Variation in cerebral blood flow velocity with cerebral perfusion pressure >40 mm Hg in 42 children with severe traumatic brain injury.
Critical care medicine 2009;37(11):2973-8.
2009: William M Armstead; Kumkum Ganguly; John W Kiessling; Xiao-Han Chen; Douglas H Smith; Abd Al-Roof Higazi; Douglas B Cines; Khalil Bdeir; Sergei Zaitsev; Vladimir R Muzykantov
Red blood cells-coupled tPA prevents impairment of cerebral vasodilatory responses and tissue injury in pediatric cerebral hypoxia/ischemia through inhibition of ERK MAPK activation.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 2009;29(8):1463-74.
2009: William M Armstead; Douglas B Cines; Khalil H Bdeir; Yasmina Bdeir; Sherman C Stein; Abd Al-Roof Higazi
uPA modulates the age-dependent effect of brain injury on cerebral hemodynamics through LRP and ERK MAPK.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 2009;29(3):524-33.
2008: William M Armstead; Amy J Christine; Abd Al-Roof Higazi; Douglas B Cines
Urokinase plasminogen activator impairs SNP and PGE2 cerebrovasodilation after brain injury through activation of LRP and ERK MAPK.
Journal of neurotrauma 2008;25(11):1375-81.
2008: William M Armstead; Douglas B Cines; Khalil Bdeir; Irina Kulikovskaya; Sherman C Stein; Abd Al-Roof Higazi
uPA impairs cerebrovasodilation after hypoxia/ischemia through LRP and ERK MAPK.
Brain research 2008;1231():121-31.
2007: William M Armstead; Monica S Vavilala
Adrenomedullin reduces gender-dependent loss of hypotensive cerebrovasodilation after newborn brain injury through activation of ATP-dependent K channels.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 2007;27(10):1702-9.
2006: William M Armstead
Association between intravascular coagulopathy and outcome after traumatic brain injury.
Neurology India 2006;54(4):347-8.
2006: William M Armstead; Taher Nassar; Sa'ed Akkawi; Douglas H Smith; Xiao-Han Chen; Douglas B Cines; Abd Al-Roof Higazi
Neutralizing the neurotoxic effects of exogenous and endogenous tPA.
Nature neuroscience 2006;9(9):1150-5.
2006: William M Armstead
Differential activation of ERK, p38, and JNK MAPK by nociceptin/orphanin FQ in the potentiation of prostaglandin cerebrovasoconstriction after brain injury.
European journal of pharmacology 2006;529(1-3):129-35.
2005: Dimitry Baranov; William M Armstead
Nitric oxide contributes to AT2 but not AT1 angiotensin II receptor-mediated vasodilatation of porcine pial arteries and arterioles.
European journal of pharmacology 2005;525(1-3):112-6.
2005: William M Armstead; Douglas B Cines; Abd Al-Roof Higazi
Plasminogen activators contribute to impairment of hypercapnic and hypotensive cerebrovasodilation after cerebral hypoxia/ischemia in the newborn pig.
Stroke; a journal of cerebral circulation 2005;36(10):2265-9.
2005: William M Armstead; James G Hecker
Heat shock protein modulation of KATP and KCa channel cerebrovasodilation after brain injury.
American journal of physiology. Heart and circulatory physiology 2005;289(3):H1184-90.
2005: John Ross; William M Armstead
NOC/oFQ activates ERK and JNK but not p38 MAPK to impair prostaglandin cerebrovasodilation after brain injury.
Brain research 2005;1054(1):95-102.
2005: William M Armstead; Douglas B Cines; Abd Al-Roof Higazie
Plasminogen activators contribute to age-dependent impairment of NMDA cerebrovasodilation after brain injury.
Brain research. Developmental brain research 2005;156(2):139-46.
2004: William M Armstead
NMDA and age dependent cerebral hemodynamics after traumatic brain injury.
Experimental and toxicologic pathology : official journal of the Gesellschaft für Toxikologische Pathologie 2004;56(1-2):75-81.
2004: William M Armstead; Douglas B Cines; Abd Al-Roof Higazi
Altered NO function contributes to impairment of uPA and tPA cerebrovasodilation after brain injury.
Journal of neurotrauma 2004;21(9):1204-11.
2004: Shaji Philip; William M Armstead
NMDA dilates pial arteries by KATP and Kca channel activation.
Brain research bulletin 2004;63(2):127-31.
2004: Jonathan Ford; William M Armstead
Nociceptin/orphanin FQ alters prostaglandin cerebrovascular action following brain injury.
Journal of neurotrauma 2004;21(2):187-93.
2004: William M Armstead
Endothelins and the role of endothelin antagonists in the management of posttraumatic vasospasm.
Current pharmaceutical design 2004;10(18):2185-92.
2003: Dimitry Baranov; William M Armstead
Selective blockade of AT1 receptor attenuates impairment of hypotensive autoregulation and improves cerebral blood flow after brain injury in the newborn pig.
Anesthesiology 2003;99(5):1118-24.
2003: William M Armstead
PTK, ERK and p38 MAPK contribute to impaired NMDA-induced vasodilation after brain injury.
European journal of pharmacology 2003;474(2-3):249-54.
2003: Shaji Philip; William M Armstead
Differential role of PTK, ERK and p38 MAPK in superoxide impairment of NMDA cerebrovasodilation.
Brain research 2003;979(1-2):98-103.
2003: William M Armstead
Cyclooxygenase-2-dependent superoxide generation contributes to age-dependent impairment of G protein-mediated cerebrovasodilation.
Anesthesiology 2003;98(6):1378-83.
2003: William M Armstead
Protein kinase C activation generates superoxide and contributes to impairment of cerebrovasodilation induced by G protein activation after brain injury.
Brain research 2003;971(2):153-60.
2003: Shaji Philip; William M Armstead
Newborn pig nociceptin/orphanin FQ activates protein tyrosine kinase and mitogen activated protein kinase to impair NMDA cerebrovasodilation after ischemia.
Neuroreport 2003;14(2):201-3.
2003: William M Armstead
ET-1 contributes to age-dependent G protein impairment after brain injury.
Journal of neurotrauma 2003;20(1):105-10.
2003: Amanda L Jagolino; William M Armstead
PTK, MAPK, and NOC/oFQ impair hypercapnic cerebrovasodilation after hypoxia/ischemia.
American journal of physiology. Heart and circulatory physiology 2003;284(1):H101-7.
2002: William M Armstead
G protein activation elicits cerebrovasodilation through interaction with K(ATP) and K(Ca) channels.
Brain research 2002;957(2):369-72.
2002: William M Armstead
Role of Nociceptin/Orphanin FQ in the physiologic and pathologic control of the cerebral circulation.
Experimental biology and medicine (Maywood, N.J.) 2002;227(11):957-68.
2002: William M Armstead
Age dependent NMDA contribution to impaired hypotensive cerebral hemodynamics following brain injury.
Brain research. Developmental brain research 2002;139(1):19-28.
2002: Dimitry Baranov; William M Armstead
Prostaglandins contribute to impaired angiotensin II-induced cerebral vasodilation after brain injury.
Journal of neurotrauma 2002;19(11):1457-66.
2002: William M Armstead
Age-dependent NOC/oFQ contribution to impaired hypotensive cerebral hemodynamics after brain injury.
Journal of neurotrauma 2002;19(10):1193-202.
2002: Miriam Kulkarni; William M Armstead
Relationship between NOC/oFQ, dynorphin, and COX-2 activation in impaired NMDA cerebrovasodilation after brain injury.
Journal of neurotrauma 2002;19(8):965-73.
2002: William M Armstead
Protein tyrosine kinase and mitogen-activated protein kinase activation contribute to K(ATP) and K(ca) channel impairment after brain injury.
Brain research 2002;943(2):276-82.
2002: William M Armstead
NOC/oFQ and NMDA contribute to piglet hypoxic ischemic hypotensive cerebrovasodilation impairment.
Pediatric research 2002;51(5):586-91.
2002: William M Armstead
NOC/oFQ activates PKC and generates superoxide to impair hypotensive cerebrovasodilation after hypoxia/ischemia.
Medical science monitor : international medical journal of experimental and clinical research 2002;8(1):BR8-BR14.
2001: William M Armstead
Endothelin-Induced cyclooxygenase-dependent superoxide generation contributes to K+ channel functional impairment after brain injury.
Journal of neurotrauma 2001;18(10):1039-48.
2001: William M Armstead
Vasopressin induced cyclooxygenase dependent superoxide generation contributes to K(+) channel function impairment after brain injury.
Brain research 2001;910(1-2):19-28.
2001: A Jagolino; William M Armstead
Nociceptin/orphanin FQ contributes to hypoxic/ischemic impairment of hypercapnic cerebrovasodilation.
Brain research bulletin 2001;55(4):465-8.
2001: William M Armstead
Age-Dependent vasopressinergic modulation of Noc/oFQ-induced impairment of NMDA cerebrovasodilation after brain injury.
Journal of neurotrauma 2001;18(6):615-23.
2001: William M Armstead
Vasopressin-induced protein kinase C-dependent superoxide generation contributes to atp-sensitive potassium channel but not calcium-sensitive potassium channel function impairment after brain injury.
Stroke; a journal of cerebral circulation 2001;32(6):1408-14.
2001: William M Armstead
Age dependent endothelin contribution to NOC/oFQ induced impairment of NMDA cerebrovasodilation after brain injury.
Peptides 2001;22(1):39-46.
2000: Alana E Salvucci; William M Armstead
Vasopressin impairs K(ATP) and K(ca) channel function after brain injury.
Brain research 2000;887(2):406-12.
2000: William M Armstead
Role of altered cyclooxygenase metabolism in impaired cerebrovasodilation to nociceptin/orphanin FQ following brain injury.
Brain research bulletin 2000;53(6):807-12.
2000: William M Armstead
NOC/oFQ PKC-dependent superoxide generation contributes to hypoxic-ischemic impairment of NMDA cerebrovasodilation.
American journal of physiology. Heart and circulatory physiology 2000;279(6):H2678-84.
2000: G Ben-Haim; William M Armstead
Role of cAMP and K(+) channel-dependent mechanisms in piglet hypoxic/ischemic impaired nociceptin/orphanin FQ-induced cerebrovasodilation.
Brain research 2000;884(1--2):51-8.
2000: William M Armstead
NOC/oFQ contributes to age-dependent impairment of NMDA-induced cerebrovasodilation after brain injury.
American journal of physiology. Heart and circulatory physiology 2000;279(5):H2188-95.
2000: William M Armstead
Role of nociceptin/orphanin FQ in age-dependent cerebral hemodynamic effects of brain injury.
Journal of neurotrauma 2000;17(9):751-64.
2000: M Kulkarni; William M Armstead
Superoxide generation links nociceptin/orphanin FQ (NOC/oFQ) release to impaired N-methyl-D-aspartate cerebrovasodilation after brain injury.
Stroke; a journal of cerebral circulation 2000;31(8):1990-6.
2000: William M Armstead
Role of NOC/oFQ in impaired opioid-induced pial artery dilation following brain injury.
Brain research 2000;869(1-2):231-5.
2000: William M Armstead
NOC/oFQ contributes to hypoxic-ischemic impairment of N-methyl-D-aspartate-induced cerebral vasodilation.
Brain research 2000;868(1):48-55.
2000: William M Armstead
Altered release of prostaglandins contributes to hypoxic/ischemic impairment of NOC/oFQ cerebrovasodilation.
Brain research 2000;859(1):104-12.
2000: William M Armstead
Relationship between nociceptin/orphanin FQ and cerebral hemodynamics after hypoxia-ischemia in piglets.
American journal of physiology. Heart and circulatory physiology 2000;278(2):H477-83.
2000: G Ben-Haim; William M Armstead
Stimulus duration-dependent contribution of k(ca) channel activation and cAMP to hypoxic cerebrovasodilation.
Brain research 2000;853(2):330-7.
1999: William M Armstead
Role of endothelin-1 in age-dependent cerebrovascular hypotensive responses after brain injury.
The American journal of physiology 1999;277(5 Pt 2):H1884-94.
1999: William M Armstead
Endothelin-1 contributes to normocapnic hyperoxic pial artery vasoconstriction.
Brain research 1999;842(1):252-5.
1999: William M Armstead
Nociceptin/orphanin FQ dilates pial arteries by K(ATP) and K(ca) channel activation.
Brain research 1999;835(2):315-23.
1999: William M Armstead
Age-dependent impairment of K(ATP) channel function following brain injury.
Journal of neurotrauma 1999;16(5):391-402.
1999: William M Armstead
Cerebral hemodynamics after traumatic brain injury of immature brain.
Experimental and toxicologic pathology : official journal of the Gesellschaft für Toxikologische Pathologie 1999;51(2):137-42.
1999: William M Armstead
Superoxide generation links protein kinase C activation to impaired ATP-sensitive K+ channel function after brain injury.
Stroke; a journal of cerebral circulation 1999;30(1):153-9.
1998: William M Armstead
Nitric oxide contributes to opioid release from glia during hypoxia.
Brain research 1998;813(2):398-401.
1998: A Venteicher; William M Armstead
Vasopressin contributes to dynorphin modulation of hypoxic cerebrovasodilation.
The American journal of physiology 1998;275(6 Pt 2):H2072-9.
1998: William M Armstead
Brain injury impairs prostaglandin cerebrovasodilation.
Journal of neurotrauma 1998;15(9):721-9.
1998: William M Armstead
Relationship among NO, the KATP channel, and opioids in hypoxic pial artery dilation.
The American journal of physiology 1998;275(3 Pt 2):H988-94.
1998: William M Armstead
Role of opioids in hypoxic pial artery dilation is stimulus duration dependent.
The American journal of physiology 1998;275(3 Pt 2):H861-7.
1998: William M Armstead
Contribution of kca channel activation to hypoxic cerebrovasodilation does not involve NO.
Brain research 1998;799(1):44-8.
1998: William M Armstead
ATP-dependent K+ channel activation reduces loss of opioid dilation after brain injury.
The American journal of physiology 1998;274(5 Pt 2):H1674-83.
1998: Michael J Wilderman; William M Armstead
Role of endothelial nitric oxide synthase in hypoxia-induced pial artery dilation.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 1998;18(5):531-8.
1998: A Al-Turki; William M Armstead
Altered release of prostaglandins by opioids contributes to impaired cerebral hemodynamics following brain injury.
Critical care medicine 1998;26(5):917-25.
1997: T Kasemsri; William M Armstead
Endothelin impairs ATP-sensitive K+ channel function after brain injury.
The American journal of physiology 1997;273(6 Pt 2):H2639-47.
1997: William M Armstead
Brain injury impairs ATP-sensitive K+ channel function in piglet cerebral arteries.
Stroke; a journal of cerebral circulation 1997;28(11):2273-9; discussion 2280.
1997: Michael J Wilderman; William M Armstead
Role of neuronal NO synthase in relationship between NO and opioids in hypoxia-induced pial artery dilation.
The American journal of physiology 1997;273(4 Pt 2):H1807-15.
1997: William M Armstead
Role of impaired cAMP and calcium-sensitive K+ channel function in altered cerebral hemodynamics following brain injury.
Brain research 1997;768(1-2):177-84.
1997: William M Armstead
Role of activation of calcium-sensitive K+ channels in NO- and hypoxia-induced pial artery vasodilation.
The American journal of physiology 1997;272(4 Pt 2):H1785-90.
1997: MARK ROSSBERG; William M Armstead
Role of cyclic nucleotides in vasopressin-induced piglet pial artery dilation and opioid release.
Pediatric research 1997;41(4 Pt 1):498-504.
1997: Michael J Wilderman; William M Armstead
Role of PACAP in the relationship between cAMP and opioids in hypoxia-induced pial artery vasodilation.
The American journal of physiology 1997;272(3 Pt 2):H1350-8.
1997: William M Armstead
Role of opioids in the physiologic and pathophysiologic control of the cerebral circulation.
Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.) 1997;214(3):210-21.
1997: William M Armstead
Role of activation of calcium-sensitive K+ channels and cAMP in opioid-induced pial artery dilation.
Brain research 1997;747(2):252-8.
1997: T Kasemsri; William M Armstead
Endothelin production links superoxide generation to altered opioid-induced pial artery vasodilation after brain injury in pigs.
Stroke; a journal of cerebral circulation 1997;28(1):190-6; discussion 197.
1997: William M Armstead
Role of nitric oxide, cyclic nucleotides, and the activation of ATP-sensitive K+ channels in the contribution of adenosine to hypoxia-induced pial artery dilation.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 1997;17(1):100-8.
1996: William M Armstead
Role of endothelin in pial artery vasoconstriction and altered responses to vasopressin after brain injury.
Journal of neurosurgery 1996;85(5):901-7.
1996: Michael J Wilderman; William M Armstead
Influence of cAMP on cerebrospinal fluid opioid concentration: role in cAMP-induced pial artery dilation.
European journal of pharmacology 1996;309(3):243-9.
1996: MARK ROSSBERG; William M Armstead
Relationship between vasopressin and opioids in hypoxia induced pial artery vasodilation.
The American journal of physiology 1996;271(2 Pt 2):H521-7.
1996: William M Armstead
cGMP and cAMP in prostaglandin-induced pial artery dilation and increased CSF opioid concentration.
The American journal of physiology 1996;271(1 Pt 2):H166-72.
1996: William M Armstead
Relationship between opioids and prostaglandins in hypoxia-induced vasodilation of pial arteries in the newborn pig.
Proceedings of the Society for Experimental Biology and Medicine. Society for Experimental Biology and Medicine (New York, N.Y.) 1996;212(2):135-41.
1996: William M Armstead
Influence of brain injury on vasopressin-induced pial artery vasodilation: role of superoxide anion.
The American journal of physiology 1996;270(4 Pt 2):H1272-8.
1996: William M Armstead
Role of vasopressin in altered pial artery responses to dynorphin and beta-endorphin following brain injury.
Journal of neurotrauma 1996;13(3):115-23.
1996: Michael J Wilderman; William M Armstead
Relationship between nitric oxide and opioids in hypoxia-induced pial artery vasodilation.
The American journal of physiology 1996;270(3 Pt 2):H869-74.
1996: M C Thorogood; William M Armstead
Influence of polyethylene glycol superoxide dismutase/catalase on altered opioid-induced pial artery dilation after brain injury.
Anesthesiology 1996;84(3):614-25.
1996: William M Armstead
Role of ATP-sensitive K+ channels in cGMP-mediated pial artery vasodilation.
The American journal of physiology 1996;270(2 Pt 2):H423-6.
1995: M C Thorogood; William M Armstead
Influence of brain injury on opioid-induced pial artery vasodilation.
The American journal of physiology 1995;269(5 Pt 2):H1776-83.
1995: V Shankar; William M Armstead
Opioids contribute to hypoxia-induced pial artery dilation through activation of ATP-sensitive K+ channels.
The American journal of physiology 1995;269(3 Pt 2):H997-1002.
1995: William M Armstead
Relationship between opioids and activation of phospholipase C and protein kinase C in brain injury induced pial artery vasoconstriction.
Brain research 1995;689(2):183-8.
1995: William M Armstead
The contribution of delta 1- and delta 2-opioid receptors to hypoxia-induced pial artery dilation in the newborn pig.
Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism 1995;15(3):539-46.
1995: William M Armstead
Role of nitric oxide and cAMP in prostaglandin-induced pial arterial vasodilation.
The American journal of physiology 1995;268(4 Pt 2):H1436-40.
1995: J O Devine; William M Armstead
The role of nitric oxide in opioid-induced pial artery vasodilation.
Brain research 1995;675(1-2):257-63.
1995: S Rebich; J O Devine; William M Armstead
Role of nitric oxide and cAMP in beta-adrenoceptor-induced pial artery vasodilation.
The American journal of physiology 1995;268(3 Pt 2):H1071-6.
1995: William M Armstead
Opioids and nitric oxide contribute to hypoxia-induced pial arterial vasodilation in newborn pigs.
The American journal of physiology 1995;268(1 Pt 2):H226-32.
1994: William M Armstead; C Dean Kurth
The role of opioids in newborn pig fluid percussion brain injury.
Brain research 1994;660(1):19-26.
1994: William M Armstead; C Dean Kurth
Different cerebral hemodynamic responses following fluid percussion brain injury in the newborn and juvenile pig.
Journal of neurotrauma 1994;11(5):487-97.