922.4
Smooth muscle microRNAs play a crucial role
in regulation of myogenic tone in small mesenteric arteries.
A.
Bhattachariya, I. Nordström, K. Swärd, P. Hellstrand and S.
Albinsson. Lund Univ., Sweden.
B368
922.5
Coupling between stretch-activated channels
and ryanodine receptors in vacsular smooth muscle cells.
J-P. Savineau, G. Gilbert, T. Ducret, R. Marthan and J-F.
Quignard. INSERM 1045, Univ. of Bordeaux.
B369
922.6
Stretch-sensitive microRNA expression and
signaling events in vascular smooth muscle.
K. Turczynska, K.
Swärd, P. Hellstrand and S. Albinsson. Lund Univ., Sweden.
B370
922.7
Characterization of smooth muscle microRNA
and mRNA genes that are regulated by actin polymerization.
S.
Albinsson, K. Turczynska, K. Swärd and P. Hellstrand. Lund
Univ., Sweden.
B371
922.8
Essential role of calcineurin/NFAT and ROS
in mediating mechanical stretch-induced leptin synthesis and
vascular smooth muscle remodeling.
A. Zeidan, C. Ghantous,
Z. Farhat, N. Soudani and A. Jaffa. American Univ. of Beirut.
B372
922.9
The focal adhesion: a regulated component of
aortic stiffness.
R. Saphirstein, Y. Gao, M. Jensen, C. Gallant,
S. Vetterkind, J. Moore and K. Morgan. Boston Univ.
B373
922.10 Activation of PDK1 mediates VSMC migration
and may contribute to vascular remodeling following injury.
D.S.
Weber, L.M. Sullivan, J.R. Bennett and C. McCarthy. Univ. of
South Alabama.
B374
922.11 Ugonin J, a bioactive compound isolated from
Helminthostachys zeylanica (L) Hook. (Helminthostachyaceae),
demonstrates inhibitory effects on neointima formation in
the rat carotid artery.
C-H. Wu, W-T. Yeh and P-C. Li. Sch. of
Pharm., China Med. Univ., Taiwan.
923. SMOOTH MUSCLE PHYSIOLOGY AND
PHARMACOLOGY
Poster
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Presentation time: 12:45
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B375
923.1
Phenylephrine-induced calcium oscillations
in human mesenteric arterial smooth muscle.
T. Tejerina, J.
Navarro-Dorado, N. Fameli, M. Garcia-Alonso, M. Ramajo,
C. Urraca, S. Redondo, U. Medina and C. van Breemen. Sch.
of Med., Univ. Complutense of Madrid, Univ. of British Columbia
and Hosp. Clin. San Carlos, Spain.
B376
923.2
Extracellular UDP potentiates bladder
purinergic signaling and smooth muscle contractility via P2Y6
activation of PLC/IP3 pathway.
W. Yu, X. Sun, S.C. Robson
and W.G. Hill. Beth Israel Deaconess Med. Ctr. and Harvard
Med. Sch.
B377
923.3
Essential role of TRPC3 channel as both NF-
kB upstream and downstream signaling molecule in asthmatic
airway hyperresponsiveness and remodeling.
T. Song, Y-M.
Zheng, P. Vincent and Y-X. Wang. Albany Med. Col.
B378
923.4
Constitutively active phosphodiesterase type 4
controls large conductance Ca
2+-
activated K
+
channel activity in
guinea pig urinary bladder smooth muscle.
W. Xin, Q. Cheng,
N. Li and G.V. Petkov. Univ. of South Carolina and Fourth
Affiliated Hosp., China Med. Univ.
B379
923.5
Diurnal variation in mouse urinary bladder
smooth muscle contractility.
G.M. Herrera, R. White and A.L.
Meredith. Catamount R&D Co., St. Albans, VT and Univ. of
Maryland Sch. of Med.
B380
923.6
Effect of GsMTx4 on mouse urinary bladder
smooth muscle contractility.
Z. Khan, T.M. Suchyna, F. Sachs
and A.L. Meredith. Univ. of Maryland Sch. of Med. and Univ. at
Buffalo, SUNY.
B381
923.7
ChemR23 receptor signals through pro-
contractile signaling pathways.
R.Y. Torres and S.W. Watts.
Michigan State Univ.
B382
923.8
Ion channel mechanisms underlying ethanol-
mediated relaxation in detrusor smooth muscle.
J. Malysz,
S.A.Y. Afeli and G.V. Petkov. South Carolina Col. of Pharm.,
Univ. of South Carolina.
B383
923.9
Non-muscle and smooth muscle myosin
II activation are regulated by different mechanisms during
contractile stimulation of airway smooth muscle.
W. Zhang, Y.
Wu and S.J. Gunst. Indiana Univ. Sch. of Med.
PHYSIOLOGY MONDAY
305
M
O
N
B384
923.10 Stimulation of M3 but not M2 muscarinic
receptor type inhibits large-conductance Ca
2+
activated K
+
channel in rat detrusor smooth muscle.
S.P. Parajuli and G.V.
Petkov. Univ. of South Carolina.
B385
923.11 Conformational changes in vinculin measured
by fluorescence resonance energy transfer during airway
smooth muscle contraction depend on vinculin phosphorylation
at tyrosine 1065.
Y. Huang and S.J. Gunst. Sch. of Med.,
Indiana Univ., Indianapolis.
B386
923.12 Volatile anesthetics produce both vasodilation
and vasoconstriction of the aorta by different regulation of
calcium, K2Pp channels and sarcoplasmic reticulum activity.
R. Bychkov, L. Cubano, M.T. Gonzales, N. Mayol and H.
Maldonado. Univ. Central del Caribe, PR.
B387
923.13 Small arteries of gestational rats are less
sensitive to relaxation induced by inhibition of rho A-associated
kinase (ROK).
M. Chi, B. Zielnik, S. Davidge and B. Mitchell.
Univ. of Alberta.
B388
923.14 Functional implications of Kv7 channels
expression in guinea pig urinary bladder smooth muscle
contractility.
S.A.Y. Afeli and G.V. Petkov. Univ. of South
Carolina.
B389
923.15 RGS5 is crucial for vascular smooth muscle
cells during arterial remodeling in mice.
C. Arnold, A. Feldner,
G. Genové, T. Wieland, M. Hecker and T. Korff. Univ. of
Heidelberg, German Cancer Res. Ctr., Heidelberg, Karolinska
Inst. and Exptl. and Clin. Pharmacol. and Toxicol., Mannheim,
Germany.
B390
923.16 IP3R-dependent modulation of endothelial
Ca
2+
dynamics by CaMKII in mouse mesenteric arteries.
F. Toussaint, C. Charbel, A. Blanchette and J. Ledoux.
Montreal Heart Inst. and Univ. of Montreal.
B391
923.17 Purinergic modulation of smooth muscle
intracellular Ca
2+
concentration.
M.L. Olson, C. Kennedy and
J.G. McCarron. Univ. of Strathclyde, U.K.
B392
923.18 Probing differential subcellular calcium
dynamics using targeted fluorescence calcium biosensors in
rat pulmonary artery smooth muscle cells.
K.P. Subedi, O.
Paudel and J.S.K. Sham. Johns Hopkins Univ.
924. WIGGERS AWARD FEATURED TOPIC
POSTERS: NOVEL PATHWAYS REGULATING
MICROVASCULAR TONE AND FUNCTION
Poster
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. 7:30
am
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Presentation time: 12:45
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-3:00
pm
B393
924.1
Role of vascular hyperpolarization, nitric oxide,
and prostaglandins in reactive hyperemia in healthy humans.
A.R. Crecelius, J.C. Richards, G.J. Luckasen, D.G. Larson
and F.A. Dinenno. Colorado State Univ. and Univ. of Colorado
Hlth., Loveland.
B394
924.2
Endogenously-generated lipid peroxidation
products dilate rat cerebral arteries by activating TRPA1
channels in the endothelium.
M.N. Sullivan, A. Bruhl and S.
Earley. Colorado State Univ.
B395
924.3
A novel role for spontaneous endothelial cell
calcium activity in the vascular myogenic response.
P. Bagher,
T. Beleznai, Y. Kansui, R. Mitchell, C.J. Garland and K.A.
Dora. Univ. of Oxford and Kyushu Univ., Japan.
B396
924.4
Nitric oxide stress uncovers pM b2-adrenergic
mediated dilation to isoproterenol mimicked by preventing
clathrin endosome formation.
M. Frame, B. Calizo, A.M. Dewar
and S. Scarlata. Stony Brook Univ.
B397
924.5
Abnormal ER and mitochondrial communication
underlies ER stress in cerebrovascular insulin resistance.
P.V.G. Katakam, I. Rutkai, D. Liu, S.M. Grovenburg, A.O.
Gordon and D.W. Busija. Tulane Univ. Sch. of Med.
B398
924.6
Involvement of TRPM4 in pressure and agonist-
induced vasoconstriction in the cerebral microcirculation.
Y. Li,
R.L. Baylie and J.E. Brayden. Univ. of Vermont.
B399
924.7
ASIC1a opposes exercise-induced hyperemia
and maximal exercise capacity.
H. Drummond, M. Gousset,
A. Abu-Zaid, M. Daklallah, J. Weisman, B. Murphey and R.
Hester. Univ. of Mississippi Med. Ctr. and Col. of Med., Al Faisal
Univ., Saudi Arabia.
B400
924.8
Defective Nrf2-dependent redox signaling
contributes to microvascular dysfunction in type 2 diabetes.
G.V. Velmurugan and C. White. Rosalind Franklin Univ.
B401
924.9
Augmentation of endothelium-dependent
vasodilation during mild exercise blunts postjunctional
a-adrenergic vasoconstriction. B.S. Kirby, A.R. Crecelius, J.C.
Richards, G.J. Luckasen, D.G. Larson and F.A. Dinenno.
Duke Univ., Colorado State Univ. and Univ. of Colorado Hlth.,
Loveland.
B402
924.10 TNF
a receptor endocytosis balances
inflammatory and apoptotic signaling in endothelial cells.
H.
Choi and F.S. Lamb. Vanderbilt Univ. Med. Ctr.
B403
924.11 Proteomic analysis of aortic and coronary
resistance microvessel tissue in type 2 diabetic db/db mice.
A.J. Trask, M.J. Cismowski, K. Halleck and P.A. Lucchesi.
Nationwide Children’s Hosp. and The Ohio State Univ.
B404
924.12 Microvascular smooth muscle gene program is
highly sensitive to blood flow.
J.J. Reho and S.A. Fisher. Univ.
of Maryland Baltimore.
B405
924.13 Insulin-induced augmentation of cremaster
muscle intracapillary blood volume is impaired in db/db mice.
J.W. VanTeeffelen, H. Vink and B. Eskens. Maastricht Univ.,
Netherlands.
B406
924.14 Ceramide initiates PP2A colocalization with
eNOS at the cell membrane by dissociating PP2A from I2PP2A
in the cytosol.
L. Panneerseelan, T. Ruan, A. Ravindran, Y. Li,
Q-J. Zhang, E.D. Abel and J.D. Symons. Univ. of Utah.
925. CEREBRAL CIRCULATION II
Poster
m
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. 7:30
am
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Presentation time: 12:45
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pm
B407
925.1
Genetic interference with peroxisome
proliferator-activated receptor
g in smooth muscle enhances
cerebrovascular myogenic tone via a rho kinase-dependent
mechanism.
M. De Silva, P. Ketsawatsomkron, C. Pelham,
C.D. Sigmund and F.M. Faraci. Univ. of Iowa.
B408
925.2
Aerobic training improves microcirculatory
profile in brain areas of normotensive (WKY) and spontaneously
hypertensive rats.
M.T. Jordão, M.T. Cavalleri, K. Burgi, L.J.
El Chaar, A. Ceroni and L.C. Michelini. Univ. of São Paulo.
B409
925.3
Subarachnoid hemorrhage-induced activation
of protein kinase C and suppression of voltage-gated potassium
channels.
R.F. Rudy, M. Koide and G.C. Wellman. Univ. of
Vermont.
MONDAY PHYSIOLOGY
306
B410
925.4
Sustained ATP-mediated vasodilation of
cerebral arteries requires Ca
2+
influx via TRPC3 channels
to produce endothelial SKCa channel activation and
hyperpolarization.
M.Y. Kochukov, J. Abramowitz, L.
Birnbaumer and S.P. Marrelli. Baylor Col. of Med. and NIEHS,
NIH, Research Triangle Park.
B411
925.5
Ca
v
3.2 channels and the induction of negative
feedback in cerebral arterial smooth muscle.
R. Abd El-
Rahman, O. Harraz, K. Bigdely-Shamloo, R. Mufti, A.
Gonzales, S. Earley, E. Vigmond, S. Wilson and D. Welsh.
Univ. of Calgary, Canada, Colorado State Univ. and Loma
Linda Univ.
B412
925.6
Increased cerebral oxygen delivery during
sodium nitroprusside administration despite reduced blood
flow velocity in the middle cerebral artery.
C.E. Schwartz, Z.R.
Messer, C. Terilli, M.S. Medow and J.M. Stewart. New York
Med. Col.
B413
925.7
Critical role of Kv channels in cerebrovascular
dysfunction associated with ischemic small vessel disease
in a mouse genetic model.
F. Dabertrand, A.D. Bonev, C.
Krøigaard, J.E. Brayden, A. Joutel and M.T. Nelson. Univ. of
Vermont Col. of Med. and INSERM U740, Fac. of Med. Paris 7.
B414
925.8
Can the study of individuals with autonomically
complete spinal cord injuries help clarify the role of
sympathetic nerves in cerebrovascular reactivity?
J. Inskip,
R.H.J.C. Ravensbergen, S.M. O’Connor and V.E. Claydon.
Simon Fraser Univ., Canada and Intl. Collaboration on Repair
Discoveries, Vancouver.
B415
925.9
Impairment of neurovascular coupling by
chronic stress.
T. Longden, F. Dabertrand, S.E. Hammack
and M.T. Nelson. Univ. of Vermont.
B416
925.10 Assessment of cerebral autoregulation as a
clinical prognostic tool in subarachnoid hemorrhage.
F. Otite,
F.A. Sorond and C.O. Tan. Brigham and Women’s Hosp.,
Harvard Med. Sch., Boston and Spaulding Rehab. Hosp.,
Harvard Med. Sch., Cambridge.
B417
925.11 Defining the physiology of cerebral
autoregulation.
J.W. Hamner, J.A. Taylor and C.O. Tan.
Spaulding Rehab. Hosp. and Harvard Med. Sch.
B418
925.12 Acute hypovolemia does not affect dynamic
cerebral autoregulation in humans.
J.M. Serrador, M.J. Falvo,
L. Maracaja, M.M. Blatt, T.L. Caine, M.B. Stenger, S. Platts,
C.F. Knapp and J.M. Evans. VA New Jersey Healthcare
Syst., East Orange, New Jersey Med. Sch., Newark, SUNY
Downstate Med. Ctr., NASA Johnson Space Ctr. and Univ. of
Kentucky.
926. CENTRAL AUTONOMIC REGULATION
Poster
m
on
. 7:30
am
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oston
C
onvention
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Presentation time: 12:45
pm
-3:00
pm
B419
926.1
Cardiorespiratory control as a function of
wake-sleep behavior and diet in mice lacking CB
1
cannabinoid
receptors.
A. Silvani, S. Bastianini, C. Berteotti, G. Cohen, V.
Lo Martire, R. Mazza, C. Quarta, U. Pagotto and G. Zoccoli.
Univ. of Bologna and Karolinska Inst.
B420
926.2
Racial differences in blood pressure variability,
baroreflex sensitivity and heart rate variability following
maximal exercise.
R.M. Kappus, S.M. Ranadive, H. Yan, A.D.
Lane, M.D. Cook, K.R. Wilund, J.A. Woods and B. Fernhall.
Univ. of Illinois at Chicago, Mayo Clin. and Univ. of Illinois at
Urbana-Champaign.
B421
926.3
Optogenetic stimulation of preoptic neurons
inhibits brown adipose tissue sympathetic nerve activity.
Y.
Nakamura, H. Hioki, N. Kataoka, T. Kaneko and K. Nakamura.
Kyoto Univ.
B422
926.4
ATP-induced sympathoexcitation involves
purinergic and glutamatergic mechanisms in the RVLM-
projecting PVN neurons.
H.C. Ferreira Neto and V.R. Antunes.
Univ. of São Paulo.
B423
926.5
Corticotropin releasing factor receptors in the
rostral ventrolateral medulla are required to initiate but not
sustain glucose-induced sympathoexcitation.
M.E. Bardgett
and G.M. Toney. Univ. of Texas Hlth. Sci. Ctr. at San Antonio.
B424
926.6
Loss of muscle sympathetic nerve activity and
blood pressure phase synchronization in postural vasovagal
syncope.
C.E. Schwartz, E. Lambert, M.S. Medow and J.M.
Stewart. New York Med. Col. and Baker Heart Res. Inst.,
Melbourne.
B425
926.7
Early changes to circadian rhythm account for
elevated blood pressure and sympathetic activity during a high
fat diet in rabbits.
K. Lim, S.L. Burke, B. Barzel, J.A. Armitage
and G.A. Head. Baker IDI Heart & Diabetes Inst., Melbourne.
B426
926.8
A signature of fetal systemic inflammatory
response in the pattern of heart rate variability measures matrix:
a prospective study in fetal sheep model of lipopolysaccharide-
induced sepsis.
L.D. Durosier, M. Cao, C. Herry, I. Batkin,
A.J.E. Seely, P. Burns, G. Fecteau, A. Desrochers and M.G.
Frasch. Univ. of Montreal Ste. Justine Univ. Hosp. Ctr. and
CHUV, St- Hyacinthe and Univ. of Ottawa.
B427
926.9
Habituation to repeated stress is reversed by
systemic angiotensin II: a mechanism involving nitric oxide in the
paraventricular nucleus of the hypothalamus.
J.L. Anilovitch,
P.J. Davern, S.L. Burke, R.G. Evans and G.A. Head. Baker
IDI Heart and Diabetes Inst., Melbourne and Monash Univ.,
Australia.
B428
926.10 Angiotensin type 1A receptors transfected
into the nucleus tractus solitarii of AT
1A
-/-
mice increase blood
pressure and cardiovascular responses to aversive stress.
G.A.
Head, B. Abegaz, K.L. Jackson, J.K. Bassi, A. Connelly, Y-T.
Choong, A.M. Allen and P.J. Davern. Baker IDI Heart and
Diabetes Inst., Melbourne and Univ. of Melbourne.
B429
926.11 Neural signature of cerebral activity of the fetal
cholinergic anti-inflammatory pathway derived from heart rate
variability.
L.D. Durosier, A. Xu, B. Matushewski, M. Cao, C.
Herry, I. Batkin, A.J.E. Seely, M.G. Ross, B.S. Richardson
and M.G. Frasch. CHU Ste-Justine Res. Ctr., Univ. of Montreal,
CHRI, Western Univ., London, ON, OHRI, Univ. of Ottawa and
Geffen Sch. of Med. at UCLA.
B430
926.12 p110
a Subunit of PI3K is a crucial component
of brain insulin receptor signaling in regulating lumbar
sympathetic nerve traffic.
K. Muta, D.A. Morgan and K.
Rahmouni. Univ. of Iowa.
B431
926.13 Enhanced CB1 cannabinoid receptor tone
contributes to impaired baroreflex sensitivity in hypertensive
(mRen2)27 transgenic rats.
C. Schaich, M. Nautiyal, A.
Howlett, M. Chappell and D. Diz. Wake Forest Univ.
PHYSIOLOGY MONDAY
307
M
O
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B432
926.14 Repetitive electroacupuncture attenuates cold-
induced hypertension and simultaneously enhances RVLM
preproenkephalin mRNA expression.
M. Li, S.Y. Chi, S.C. Tjen-
A-Looi and J.C. Longhurst. Univ. of California, Irvine.
B433
926.15 Intermittent induced change in gene expression
in the median preoptic nucleus of rats.
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