Results 251 to 260 of about 205,545 (311)
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Annual Review of Microbiology, 2013
Bacteria secrete and harbor in their membranes a number of pore-forming proteins. Some of these are bona fide ion channels that may respond to changes in membrane tension, voltage, or pH. Others may be large translocons used for the secretion of folded or unfolded polypeptide substrates.
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Bacteria secrete and harbor in their membranes a number of pore-forming proteins. Some of these are bona fide ion channels that may respond to changes in membrane tension, voltage, or pH. Others may be large translocons used for the secretion of folded or unfolded polypeptide substrates.
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Dimensions of Critical Care Nursing, 2003
The purpose of this article is to provide an introduction to electrophysiology (EP) testing. The history and evolution of EP testing will be reviewed briefly. The indications for electrophysiology studies (EPS) testing, EP definitions and terminology, components of a basic EP procedure, and potential complications will also be presented.
Diane M, Bosen, Matthew A, Flemming
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The purpose of this article is to provide an introduction to electrophysiology (EP) testing. The history and evolution of EP testing will be reviewed briefly. The indications for electrophysiology studies (EPS) testing, EP definitions and terminology, components of a basic EP procedure, and potential complications will also be presented.
Diane M, Bosen, Matthew A, Flemming
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2015
The physiology and functions of ion channels have been major topics of interest in biomedical research. Patch clamping is one of the most powerful techniques used in the study of ion channels and has been widely applied to the investigation of electrical properties of ion channels on the plasma membrane in a variety of cells.
Xi Z, Zhong, Xian-Ping, Dong
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The physiology and functions of ion channels have been major topics of interest in biomedical research. Patch clamping is one of the most powerful techniques used in the study of ion channels and has been widely applied to the investigation of electrical properties of ion channels on the plasma membrane in a variety of cells.
Xi Z, Zhong, Xian-Ping, Dong
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2011
Electrophysiological recording techniques have been widely applied to study the functional role of neuropeptides. The present chapter focuses on the very often used techniques including whole-cell patch-clamp recording, sharp electrode intracellular recording, and extracellular field potential recording in slice preparation as well as in vivo animal ...
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Electrophysiological recording techniques have been widely applied to study the functional role of neuropeptides. The present chapter focuses on the very often used techniques including whole-cell patch-clamp recording, sharp electrode intracellular recording, and extracellular field potential recording in slice preparation as well as in vivo animal ...
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The electrophysiology of the utricle
Pfl�gers Archiv European Journal of Physiology, 1972The Na+ concentration in utricular endolymph of guinea pigs was measured with Na+ specific electrodes and found to be 12.6±5.8 mEqu/l. The utricular potential was 1.8±4.4 mV. Permanent anoxia resulting in the death of the animal caused the potential to fall by 15 mV and the Na+ concentration to rise at a rate of 0.4 mEqu/l per minute.
P M, Sellick +2 more
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The electrophysiology of the saccule
Pfl�gers Archiv European Journal of Physiology, 1972The Na+ concentration in saccular endolymph in guinea pigs was measured and found to be 3.2±0.6 mEqu/l with sodium specific electrodes. The saccular potential varied between −8 and +2.4 mV. Permanent anoxia resulting in the death of the animal caused the potential to fall by 15 mV and the Na+ concentration to rise to 40 mEqu/l in 30 min. Maintenance of
P M, Sellick, B M, Johnstone
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ELECTROPHYSIOLOGICAL EVALUATIONS
Neurologic Clinics, 2000Electrophysiologic testing in concert with the neurologic history and physical examination can be useful for evaluating the patient with suspected neurotoxicity. Procedures are selected depending on whether the central or peripheral nervous system, or both, are considered to be affected.
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Electrophysiology of the Cochlea
Otolaryngologic Clinics of North America, 1975With careful techniques it is possible to demonstrate three electric potential regions of the inner ear: an intracellular negative potential, a high positive potential in the endolymph that appears bounded at the scala media side of the tectorial membrane rather than at the reticular lamina, and the extracellular spaces, which contain a fluid at near ...
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Cardiovascular Research, 1975
The effect of atropine on the refractory periods of the human atrium, A-V node, and His-Purkinje system was studied. The A-V node in man appears more sensitive to atropine than the atria as evidenced by a reduction in the effective and functional refractory periods of the A-V node without alteration of atrial conduction.
J K, Bissett +3 more
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The effect of atropine on the refractory periods of the human atrium, A-V node, and His-Purkinje system was studied. The A-V node in man appears more sensitive to atropine than the atria as evidenced by a reduction in the effective and functional refractory periods of the A-V node without alteration of atrial conduction.
J K, Bissett +3 more
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The American Journal of Cardiology, 1985
The electrophysiologic characteristics of esmolol were studied in 14 patients. Ten men and 4 women, mean age 57 years, were electrophysiologically evaluated at baseline, and also at 4 to 8 minutes after the administration of a maintenance infusion of esmolol.
A M, Greenspan +5 more
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The electrophysiologic characteristics of esmolol were studied in 14 patients. Ten men and 4 women, mean age 57 years, were electrophysiologically evaluated at baseline, and also at 4 to 8 minutes after the administration of a maintenance infusion of esmolol.
A M, Greenspan +5 more
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