Active Transport of Sodium by the Isolated Midgut of Hyalophora Cecropia
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1. Sodium and lithium are actively transported by the isolated midgut of Hyalophora cecropia. 2. The short-circuit current in 32 mM sodium solution is about half of that in 32 mM potassium solution. 3. The sodium flux measured with 22Na from blood-side to lumen accounts for all of the short-circuit current and is 19 times the flux from lumen to blood-side. 4. In a solution containing 16 mM potassium and 16 mM sodium there is no transport of sodium, although a large current remains. 5. The sodium transport mechanism is not sensitive to ouabain.
1964 ◽
Vol 207
(3)
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pp. 547-552
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1971 ◽
Vol 262
(842)
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pp. 103-109
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1991 ◽
Vol 261
(5)
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pp. F873-F879
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1982 ◽
Vol 98
(1)
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pp. 155-159
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1985 ◽
Vol 248
(1)
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pp. F43-F47
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1961 ◽
Vol 200
(3)
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pp. 444-450
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