角鲨的渗透压与房水生成
Osmotic pressure and aqueous humor formation in dogfish.
作者信息
DOOLITTLE R F, THOMAS C, STONE W
出版信息
Science. 1960 Jul 1;132(3418):36-7. doi: 10.1126/science.132.3418.36.
PMID:13817609
Abstract
Comparative chemical analyses show the aqueous humor of smooth dogfish has lower concentrations of urea and trimethylamine oxide than the blood plasma. Freezing-point depression determinations demonstrate that the aqueous humor has a correspondingly lower osmotic pressure. It would appear that water entering the aqueous humor from the plasma is moving against an osmotic gradient.
摘要
对比化学分析表明，平滑狗鲨的房水比血浆含有更低浓度的尿素和氧化三甲胺。冰点降低测定表明房水具有相应更低的渗透压。看来从血浆进入房水的水是逆着渗透梯度流动的。
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