(1) Fibrinogen was scattered in the intercellular spaces, and located in the inner layer or edges of the thickened intima of the bifurcation with increasing plaque formation.
(2) In 60 patients, we examined 75 femoral bifurcations by duplex scanning and compared them with the independently performed angiography.
(3) Pathogenetically, the delta formation may represent an intermediate stage in the bifurcation process of a polydactylic ray.
(4) DNA oligodeoxynucleotides have been synthesized that enable these hypotheses to be tested; of particular interest is the combination of effects due to bifurcation (2) and methylation of the pyrimidines nucleotides (3).
(5) To elucidate the mechanism of migration of vascular smooth-muscle cells (SMCs) from media to intima, we have investigated the phenotypic modulation of the medial SMC at bifurcation of the celiac artery in 5 children and 3 young persons using a transmission electron microscope.
(6) The diagnostic accuracy of 5 MHz continuous-wave (C-W) Doppler with spectral analysis for detecting carotid bifurcation disease was evaluated.
(7) Although the most common pattern is for the right coronary artery to bifurcate at the crux giving the posterior descending (posterior interventricular) artery, a branch may arise before the crux, either as an aberrant acute marginal artery or as an early posterior descending artery, crossing the diaphragmatic surface of the right ventricle.
(8) The optimal geometry of the vascular bifurcation is interpreted on the basis of the principle of minimum work.
(9) Platelet accumulation was significantly higher at arterial branching points, 70% higher at intercostal artery bifurcations, and 150% higher at coronary artery bifurcations than in unbranched aortic intima.
(10) Therefore, we believe the indications for femorofemoral graft should be broadened to include all patients with unilateral aortoiliac occlusive disease where anatomic conditions are favorable and there is unilateral occlusion of an aortic bifurcation graft.
(11) Some part of bifurcations of arterioles showed a prominent localized vasoconstriction, and occasionally showed a complete luminal obstruction.
(12) Aortic bifurcation grafts should be used to construct the distal anastomoses beyond areas of significant disease.
(13) Some axons bifurcated into an ascending and a descending branch within the funiculi.4.
(14) Perforation of the bifurcation was well tolerated without later sequelae.
(15) A 65-year-old woman experienced transient paralysis of the left arm immediately after palpation of the right carotid artery; at surgery, a friable, atherosclerotic plaque was removed from the bifurcation of the artery.
(16) A case of a basilar bifurcation aneurysm associated with common carotid artery occlusion is reported.
(17) The carotid injection technique was modified by catheter implantation in the external carotid artery at the bifurcation of the common carotid artery.
(18) Right and left jugular vein segments were isolated by surgical technique for a 3 cm length, which included the bifurcation of the vessel, and left "in situ".
(19) The key element of the system is the bifurcation: depending on whether bifurcations are considered as a single entity or as a whole, either "local" or "global" geometry is employed.
(20) Carotid angiography, which was conducted in all cases, revealed a richly vascularized tumor in the region of the carotid artery bifurcation with characteristic "angulation" and "cuff" signs.
Channel
Definition:
(n.) The hollow bed where a stream of water runs or may run.
(n.) The deeper part of a river, harbor, strait, etc., where the main current flows, or which affords the best and safest passage for vessels.
(n.) A strait, or narrow sea, between two portions of lands; as, the British Channel.
(n.) That through which anything passes; means of passing, conveying, or transmitting; as, the news was conveyed to us by different channels.
(n.) A gutter; a groove, as in a fluted column.
(n.) Flat ledges of heavy plank bolted edgewise to the outside of a vessel, to increase the spread of the shrouds and carry them clear of the bulwarks.
(v. t.) To form a channel in; to cut or wear a channel or channels in; to groove.
(v. t.) To course through or over, as in a channel.
Example Sentences:
(1) These channels may, at least in some cases, be responsible for the generation of pacemaker depolarizations, thereby regulating firing behaviour.
(2) The influence of the various concepts for the induction of lateral structure formation in lipid membranes on integral functional units like ionophores is demonstrated by analysing the single channel current fluctuations of gramicidin in bimolecular lipid membranes.
(3) RNAs encoding a wild-type (RBK1) and a mutant (RBK1(Y379V,V381T); RBK1*) subunit of voltage-dependent potassium channels were injected into Xenopus oocytes.
(4) The dramas are part of the BBC2 controller Janice Hadlow's plans for her "unashamedly intelligent" channel over the coming months.
(5) This was unlike the action of the calcium channel blocker, cadmium, which reduced the calcium action potential and the a.h.p.
(6) Circuitry has been developed to feed the output of an ear densitogram pickup into one channel of a two-channel Holter monitor.
(7) It is concluded the decrease in cellular volume associated with substitution of serosal gluconate for Cl results in a loss of highly specific Ba2+-sensitive K+ conductance channels from the basolateral plasma membrane.
(8) Stimulation of atrial H1-receptors is suggested to directly cause an increase in Ca-channel conductance independent of intracellular cAMP content.
(9) Similarly, 50 microM D-600, a Ca+2 channel antagonist, significantly (P less than 0.01) reduced basal and 5-HETE-induced PRL release.
(10) The purpose of the present study was to analyze the effects of cromakalim (BRL 34915), a potent drug from a new class of drugs characterized as "K+ channel openers", on the electrical activity of human skeletal muscle.
(11) This promotion of repetitive activity by the introduction of additional potassium channels occurred up to an "optimal" value beyond which a further increase in paranodal potassium permeability narrowed the range of currents with a repetitive response.
(12) Channel activation persists through the process of platelet isolation and washing and is manifested in higher measured values of [Ca2+]cyt and [Ca2+]dt in the "resting state."
(13) At 100 microM-ACh the apparent open time became shorter probably due to channel blockade by ACh molecules.
(14) The effects of low doses of dihydropyridine (DHP) calcium channel antagonists nimodipine, nifedipine, (-)-R-202-791, and amlodipine, the DHP calcium channel agonist BAY K 8644 were investigated on clonic convulsions to pentylenetetrazole (PTZ) in mice.
(15) The following model is suggested: exogenous ATP interacts with a membrane receptor in the presence of Ca2+, a cascade of events occurs which mobilizes intracellular calcium, thereby increasing the cytosolic free Ca2+ concentration which consequently opens the calcium-activated K+ channels, which then leads to a change in membrane potential.
(16) SDS-PAGE analysis of the immunoprecipitates under reducing conditions revealed that the cardiac channel is mainly composed of two large polypeptides of 190 and 150 kDa, and five smaller polypeptides of 60, 55, 35, 30, and 25 kDa.
(17) In the presence of high external Cl, a component of outward current that was inhibited by the anion channel blocker diphenylamine-2-carboxylate (DPC) appeared in 70% of the cells.
(18) In vitro studies in cardiac Purkinje fibers suggested that reversal of amitriptyline-induced cardiac membrane effects by sodium bicarbonate may be attributed not only to alkalinization but also to increased in extracellular sodium concentration, diminishing the local anesthetic action of amitriptyline and resulting in less sodium channel block.
(19) The Ca2+ channel current recorded under identical conditions in rat dorsal root ganglion neurones was less sensitive to blockade by PCP (IC50, 90 microM).
(20) In voltage-clamp experiments the ion current flowing through the channels was homogeneous indicating a defined conformation and a uniform size.