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铊(I)离子的体外移动

Movement of thallium (I) ions in vitro.

作者信息

Schäfer S G, Nell G, Henning C H

出版信息

Arch Toxicol. 1981 Nov;48(4):271-9. doi: 10.1007/BF00319655.

DOI:10.1007/BF00319655
PMID:7316762
Abstract
  1. Movement of thallium (I) ions across the mucosal epithelium of descending rat colon, stripped of the muscularis externa in vitro was determined under voltage clamp conditions. 2. The unidirectional fluxes of thallium (I) ions from mucosal to serosal side (M leads to S) and in the opposite direction (S leads to M) were measured at 0 mV. A net flux of thallium (I) ions was observed from serosal to mucosal side (0.216 nmoles . cm-2 . h-1) in other words, the mucosal epithelium is apparently asymmetric for the movement of thallium (I) ions. 3. The investigations were carried out on the range of -30mV up to +30 mV from mucosal to serosal side. Thallium (I) ions move from mucosal to serosal side (M leads to S) by diffusion only (Pi = 0.119 cm.h-1), whereas into the opposite direction (S leads to M) thallium (I) ions in addition to a voltage-dependent component are transported against an electrical gradient.
摘要
  1. 在电压钳制条件下,测定了铊(I)离子在体外去除了外肌层的大鼠降结肠黏膜上皮中的转运情况。2. 在0 mV时测量了铊(I)离子从黏膜侧向浆膜侧(M至S)以及相反方向(S至M)的单向通量。观察到铊(I)离子从浆膜侧向黏膜侧的净通量(0.216纳摩尔·厘米⁻²·小时⁻¹),换句话说,黏膜上皮对于铊(I)离子的转运显然是不对称的。3. 研究在从黏膜侧向浆膜侧-30 mV至+30 mV的范围内进行。铊(I)离子仅通过扩散从黏膜侧向浆膜侧移动(Pi = 0.119厘米·小时⁻¹),而在相反方向(S至M),铊(I)离子除了有电压依赖性成分外,还逆着电梯度转运。

相似文献

1
Movement of thallium (I) ions in vitro.铊(I)离子的体外移动
Arch Toxicol. 1981 Nov;48(4):271-9. doi: 10.1007/BF00319655.
2
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Movement of thallium(I)-ions across the epithelium of intestinal segments in vitro of rats.铊(Ⅰ)离子在大鼠离体肠段上皮中的转运
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引用本文的文献

1
Excretion of metals into the rat intestine.金属在大鼠肠道内的排泄。
Biol Trace Elem Res. 1983 Jun;5(3):205-17. doi: 10.1007/BF02916624.
2
Movement of thallium(I)-ions across the epithelium of intestinal segments in vitro of rats.铊(Ⅰ)离子在大鼠离体肠段上皮中的转运
Naunyn Schmiedebergs Arch Pharmacol. 1982 Nov;321(2):157-63. doi: 10.1007/BF00518485.
3
Thallium(I) secretion across the isolated mucosa of rat descending colon.铊(I)通过大鼠降结肠离体黏膜的分泌。

本文引用的文献

1
Transport of potassium by the colon of normal and sodium-depleted rats.正常大鼠和缺钠大鼠结肠对钾的转运
J Physiol. 1967 Dec;193(3):603-17. doi: 10.1113/jphysiol.1967.sp008381.
2
The gradient of electrical potential difference and of sodium and potassium of the gut contents along the caecum and colon of normal and sodium-depleted rats.正常大鼠和缺钠大鼠盲肠及结肠内肠内容物的电势差梯度以及钠和钾的梯度。
J Physiol. 1967 Dec;193(3):571-88. doi: 10.1113/jphysiol.1967.sp008379.
3
Active transport of sodium as the source of electric current in the short-circuited isolated frog skin.
Arch Toxicol. 1987 Apr;59(6):413-20. doi: 10.1007/BF00316207.
钠的主动转运作为短路离体蛙皮电流的来源。
Acta Physiol Scand. 1951 Aug 25;23(2-3):110-27. doi: 10.1111/j.1748-1716.1951.tb00800.x.
4
The movement of thallium ions in muscle.铊离子在肌肉中的运动。
J Gen Physiol. 1960 Mar;43(4):759-73. doi: 10.1085/jgp.43.4.759.
5
FLUID AND SOLUTE TRANSPORT ACROSS FAT COLONIC MUCOSA.液体和溶质跨脂肪性结肠黏膜的转运
Q J Exp Physiol Cogn Med Sci. 1965 Apr;50:220-31. doi: 10.1113/expphysiol.1965.sp001784.
6
Transport of potassium ions in therat's intestine.
Nature. 1963 Mar 23;197:1210-1. doi: 10.1038/1971210b0.
7
Ionic current measurements in the squid giant axon membrane.乌贼巨大轴突膜离子电流的测量。
J Gen Physiol. 1960 Sep;44(1):123-67. doi: 10.1085/jgp.44.1.123.
8
The effect of various substances on the excretion and the toxicity of thallium in the rat.各种物质对大鼠铊排泄及毒性的影响。
Acta Pharmacol Toxicol (Copenh). 1956;12(3):260-8. doi: 10.1111/j.1600-0773.1956.tb01386.x.
9
The interrelationship between thallium and potassium in animals.动物体内铊与钾的相互关系。
J Pharmacol Exp Ther. 1967 Jan;155(1):187-201.
10
Ferric-cyanoferrate (II): an effective antidote in thallium poisoning.
Eur J Pharmacol. 1969;6(3):340-4. doi: 10.1016/0014-2999(69)90194-0.