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人体红细胞中钠和钾通量的反常温度依赖性

Paradoxical temperature dependence of sodium and potassium fluxes in human red cells.

作者信息

Wieth J O

出版信息

J Physiol. 1970 May;207(3):563-80. doi: 10.1113/jphysiol.1970.sp009081.

Abstract
  1. The effect of temperature on passive movements of sodium and potassium through the red cell membrane has been determined in the presence of various monovalent anions.2. Passive sodium and potassium fluxes varied in a complex way with temperature, when the isotonic electrolyte media contained 120 mM thiocyanate or salicylate. Between 0 and 18 degrees C the fluxes decreased with increasing temperature. Above 18 degrees C the rate of permeation increased when temperature was increased.3. The ability of anions to induce an increased sodium influx at 0 degrees C was gradually intensified through the following sequence of anions:HCO(3) (-) < Cl(-) = Br(-) < NO(3) (-) < I(-) << SCN(-) << salicylate.4. It is proposed that the anion induced effects on the cation permeability are secondary to binding of anions to fixed cations in the red cell membrane. The temperature dependence of the cation fluxes is assumed to reflect the binding on anions to fixed charges at temperatures between 0 and 18 degrees C.
摘要
  1. 在各种单价阴离子存在的情况下,已测定温度对钠和钾通过红细胞膜被动转运的影响。

  2. 当等渗电解质介质含有120 mM硫氰酸盐或水杨酸盐时,钠和钾的被动通量随温度以复杂的方式变化。在0至18摄氏度之间,通量随温度升高而降低。在18摄氏度以上,温度升高时渗透速率增加。

  3. 阴离子在0摄氏度时诱导钠内流增加的能力通过以下阴离子序列逐渐增强:HCO(3) (-) < Cl(-) = Br(-) < NO(3) (-) < I(-) << SCN(-) << 水杨酸盐。

  4. 有人提出,阴离子对阳离子通透性的诱导作用是阴离子与红细胞膜中固定阳离子结合的继发效应。阳离子通量的温度依赖性被认为反映了在0至18摄氏度之间阴离子与固定电荷的结合。

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The action of salicylates on bile flow in man.水杨酸盐对人体胆汁流动的作用。
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2
Differences between young and mature rabbit erythrocytes.幼年和成年兔红细胞之间的差异。
J Cell Comp Physiol. 1956 Apr;47(2):215-43. doi: 10.1002/jcp.1030470204.
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Sodium transfer in human and chicken erythrocytes.人类和鸡红细胞中的钠转运
J Physiol. 1955 Sep 28;129(3):476-503. doi: 10.1113/jphysiol.1955.sp005372.
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Potassium, sodium, and water in normal human red blood cells.正常人体红细胞中的钾、钠和水。
Scand J Clin Lab Invest. 1966;18(2):167-80. doi: 10.3109/00365516609051812.

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