Abstract
That a decrease in oxygen tension leads to vasodilatation has been known from the literature for a long time. Mechanical measurements demonstrate that hypoxia effects relaxation of vascular strips [8, 9,10, 33], vasodilatation in perfused vessels [5, 6, 7,11], or an increase in blood flow [3, 4,13,17,19, 32]. Electrophysiological investigations during oxygen deficiency, especially intracellular measurements of the membrane potential of vascular smooth muscle cells, do not exist. It has been reported merely that a PO2 decrease in the rat portal vein restricts spontaneous spike discharges and finally causes their complete cessation [16]. Johansson and Somlyo [18] supposed that vasodilatation with hypoxia possibly has an electrophysiological correlate.
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Siegel, G., Grote, J. (1988). PO2-Induced Changes of Membrane Potential and Tension in Vascular Smooth Musculature. In: Acker, H. (eds) Oxygen Sensing in Tissues. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83444-8_11
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DOI: https://doi.org/10.1007/978-3-642-83444-8_11
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