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Showing 1 to 12 of 18813 entries
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Cerebral blood flow and vascular reactivity after removal of the superior cervical sympathetic ganglion in the goat.

Circulation research

Alborch E, Gómez B, Dieguez G, Marin J, Lluch S.
PMID: 19161
Circ Res. 1977 Sep;41(3):278-82. doi: 10.1161/01.res.41.3.278.

No abstract available.

Inhibition of sympathetic neurotransmission in canine blood vessels by adenosine and adenine nucleotides.

Circulation research

Verhaeghe RH, Vanhoutte PM, Shepherd JT.
PMID: 191214
Circ Res. 1977 Feb;40(2):208-15. doi: 10.1161/01.res.40.2.208.

Adenosine and the adenine nucleotides caused a greater relaxation of strips of canine saphenous vein and tibial artery when they had been contracted by nerve stimulation than by exogenous norepinephrine. An infusion of adenosine into the dogs' lateral saphenous...

Dissociation between the electrophysiological properties and total tissue cyclic guanosine monophosphate content of guinea pig atria.

Circulation research

Mirro MJ, Bailey JC, Watanabe AM.
PMID: 221131
Circ Res. 1979 Aug;45(2):225-33. doi: 10.1161/01.res.45.2.225.

The purpose of this study was to investigate the role of cyclic guanosine monophosphate (cyclic GMP) in mediating the direct electrophysiological effects of acetylcholine in guinea pig atria. Acetylcholine significantly diminished spontaneous rate of right atria without increasing cyclic...

Modulation by prostaglandins of adrenergic transmission in the isolated perfused rabbit and rat kidney.

Circulation research

Malik KU, McGiff JC.
PMID: 235374
Circ Res. 1975 May;36(5):599-609. doi: 10.1161/01.res.36.5.599.

In the isolated perfused rabbit kidney prostaglandins (PGS) E1 (0.02-0-1 ng/ml), E2 (0.02-0.1 ng/ml), and A2 (1-5 ng/ml) inhibited the vasoconstrictor responses to sympathetic nerve stimulation by 21-44%, 31-39%, and 20-23%, respectively, without alerting those to injected norepinephrine. In...

Mechanism of activation of contraction in frog ventricular muscle.

Circulation research

Anderson TW, Hirsch C, Kavaler F.
PMID: 302765
Circ Res. 1977 Oct;41(4):472-80. doi: 10.1161/01.res.41.4.472.

No abstract available.

Dopamine induced relaxation of isolated canine renal, mesenteric, and femoral arteries contracted with prostaglandin F2-alpha.

Circulation research

Goldberg LI, Toda N.
PMID: 236842
Circ Res. 1975 Jun;36(6):97-102. doi: 10.1161/01.res.36.6.97.

The purpose of this investigation was to develop a system for studying the effects of dopamine on isolated blood vessels. Canine renal, mesenteric, and small femoral arteries (less than 1 mm outside diameter) were exposed to phenoxybenzamine 10-5 M...

Contrasting effects of hypoglycemia on plasma renin activity and cyclic adenosine 3',5'-monophosphate (cyclic AMP) in low renin and normal renin essential hypertension.

Circulation research

Lowder SC, Hamet P, Liddle GW.
PMID: 173476
Circ Res. 1976 Feb;38(2):105-8. doi: 10.1161/01.res.38.2.105.

Insulin-induced hypoglycemia previously has been shown to provoke a beta-adrenergic response that normally results in an increase in plasma renin activity (PRA). In our study, hypoglycemia induced definite increases in PRA in a group of five patients with normal...

Reflex changes in hindlimb and renal vascular resistance in response to distention of the isolated pulmonary arteries of the dog.

Circulation research

Ledsome JR, Kan WO.
PMID: 830439
Circ Res. 1977 Jan;40(1):64-72. doi: 10.1161/01.res.40.1.64.

We describe a preparation that uses a constant flow, right heart bypass for perfusion of an isolated pouch of the main pulmonary arteries at controlled pressures, and show that increments in pressure in the pulmonary arterial pouch are accompanied...

Lymph and pulmonary response to isobaric reduction in plasma oncotic pressure in baboons.

Circulation research

Zarins CK, Rice CL, Peters RM, Virgilio RW.
PMID: 101311
Circ Res. 1978 Dec;43(6):925-30. doi: 10.1161/01.res.43.6.925.

Plasma colloid osmotic pressure was reduced by 76% (from 19.6 +/- 0.6 to 4.7 +/- 1.5 mm Hg) in five baboons while pulmonary capillary hydrostatic pressure was maintained at a normal level. This resulted in fluid retention, weight gain,...

Effects of adrenergic amines on electrophysiological properties and automaticity of neonatal and adult canine Purkinje fibers: evidence for alpha- and beta-adrenergic actions.

Circulation research

Rosen MR, Hordof AJ, Ilvento JP, Danilo P.
PMID: 14790
Circ Res. 1977 Apr;40(4):390-400. doi: 10.1161/01.res.40.4.390.

We determined age-related differences in automaticity and responsiveness of cardiac Purkinje fibers from adult and neonatal dogs to graded concentrations of epinephrine, isoproterenol, and phenylephrine. Purkinje fibers were studied with standard microelectrode techniques during superfusion with Tyrode's solution at...

Role of converting enzyme in the responses of rabbit atria, aortas, and adrenal zona glomerulosa to [des-Asp1]angiotensin I.

Circulation research

Ackerly JA, Tsai BS, Peach MJ.
PMID: 194729
Circ Res. 1977 Aug;41(2):231-8. doi: 10.1161/01.res.41.2.231.

No abstract available.

Characterization of vasopressin actions in isolated submucosal arterioles of the intestinal microcirculation.

Circulation research

Vanner S, Jiang MM, Brooks VL, Surprenant A.
PMID: 2145088
Circ Res. 1990 Oct;67(4):1017-26. doi: 10.1161/01.res.67.4.1017.

Submucosal arterioles are the final resistance vessels of the mesenteric circulation; they supply intestinal mucosa and smooth muscle and contribute significantly to total mesenteric resistance. Characterization of receptors present on submucosal arterioles has not been carried out, because these...

Showing 1 to 12 of 18813 entries