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of 51
pro vyhledávání: '"C L Schauf"'
Publikováno v:
The Journal of General Physiology
In Myxicola giant axons the time constants for activation of the potassium conductance (GK) after prepulses less depolarized than a test pulse are comparable to the time constants for turn off of GK after prepulses more depolarized than the same test
Publikováno v:
Annals of Neurology. 18:443-450
The mode of action of adrenocorticotropic hormone (ACTH) treatment in exacerbating multiple sclerosis was studied by short-term infusions of agents that mimic specific and limited pharmacological actions of ACTH and observing for temporally phase-loc
Autor:
C. L. Schauf
Publikováno v:
Canadian Journal of Physiology and Pharmacology. 65:568-573
Time- and voltage-dependent behavior of the Na+ conductance in dialyzed intact Myxicola axons was compared with cut-open axons subjected to loose-patch clamp of the interior and to axons where Gigaseals were formed after brief enzyme digestion. Volta
Publikováno v:
Journal of Neurology, Neurosurgery & Psychiatry. 39:680-685
The effects of sera from guinea-pigs with experimental allergic encephalomyelitis (EAE) and multiple sclerosis (MS) patients were evaluated and compared with the activity of control sera using the isolated frog spinal cord. Ventral root responses (VR
Autor:
C L Schauf, F A Davis
Publikováno v:
The Journal of General Physiology
Myxicola giant axons were studied using standard voltage-clamp techniques in solutions whose pH values ranged from 3.9 to 10.2. Buffer concentrations of 50 mM or greater were necessary to demonstrate the full effect of pH. In acidic solutions the axo
Publikováno v:
Biophysical Journal. 16:985-989
Myxicola giant axons internally injected with tetraethylammonium chloride to block potassium currents were examined under voltage clamp. The sodium inactivation time constants obtained from the decline in INa during step depolarizations were substant
Publikováno v:
Biophysical Journal. 16:771-778
Sodium inactivation and reactivation have been examined in voltage-clamped Myxicola axons after long-lasting membrane depolarizations produced either directly by changes in holding potential or indirectly by elevation of external K+ concentration. Th
Autor:
C. L. Schauf
Publikováno v:
Clinical and Experimental Pharmacology and Physiology. 14:273-281
SUMMARY 1. Drugs can be identified that relieve clinical symptoms of demyelinating diseases such as multiple sclerosis based on their ability to alter voltage-dependent ion channels in membranes and restore conduction in demyelinated nerve. Beneficia
Autor:
C L Schauf, J O Bullock
Publikováno v:
The Journal of Physiology. 286:157-171
1. Immobilization of gating charge was examined in Myxicola giant axons dialysed with Cs+. 2. With increasing pulse durations the ratio QOFF/QON decreases to as little as 0.25 with a time constant of 3.2 msec determined from composite data. Na inacti
Autor:
C. L. Schauf
Publikováno v:
The Journal of Physiology. 235:197-205
1. The temperature dependence of the sodium and potassium conductances of Myxicola giant axons was studied in the range of 1-18 degrees C.2. Analysis of voltage clamp records for step depolarizations of 20-150 mV yielded Q(10)'s for g(Na), g(K), and