Gardaire E, Avella M, Isaia J, Bornancin M, Mayer-Gostan N
Exp Biol. 1985;44(3):181-9.
Sodium exchanges through the gill epithelia were estimated in the rainbow trout, Salmo gairdneri, using the perfused head technique. The head tissues accumulate radioactivity. In addition there exists an extrabranchial entry of sodium, which is 20 times smaller than the branchial one. The study of the evolution of venous and arterial sodium specific activities as a function of time is necessary before flux measurements are achieved. Contrary to previous studies, an uptake at the primary lamella level is demonstrated. Uptake of sodium through the secondary lamellae can be measured rapidly while at least 30 min are needed for measurement of uptake through the primary lamellae. Chloride cells of the primary lamellae contribute to about 20% of the total sodium uptake.
采用灌注头部技术对虹鳟（Salmo gairdneri）鳃上皮的钠交换进行了估算。头部组织会积累放射性。此外，存在鳃外钠进入，其比鳃内钠进入小20倍。在进行通量测量之前，有必要研究静脉和动脉钠比活度随时间的变化情况。与之前的研究相反，证实了在初级鳃小片水平存在摄取。通过次级鳃小片摄取钠的测量可以快速完成，而测量通过初级鳃小片摄取钠至少需要30分钟。初级鳃小片的氯细胞约占总钠摄取量的20%。
