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Plasma calcium and calcitonin levels in eels fed a high calcium solution or transferred to seawater.

Abstract：

:To examine the physiological role of calcitonin (CT) in calcium homeostasis of teleosts, we compared calcium and CT levels in freshwater eels fed a high calcium-consomme solution (Ca2+: 1.25 M; 1 ml/100 g body wt) into the stomach (Experiment I), and in freshwater eels transferred from freshwater to seawater (Experiment II). In experiment I, plasma calcium and CT levels in the high calcium-treated eels rapidly increased (calcium: 2.63 mM at 0 h to 8. 50 mM at 3 h; CT: below detection level at 0 h to 1118.2 pg/ml at 3 h). Plasma calcium and CT levels in the control eels remained below detection level during the 3 h of the experiment. In experiment II, the plasma CT levels did not increase, although the plasma calcium levels increased from 3.23 mM at 0 h to 4.10 mM at 8 h. Therefore, in eels, we demonstrate a correlation between plasma CT and plasma calcium raised by dietary calcium in the consomme form, but it does not participate in the initial processes of seawater adaptation.

journal_name

Gen Comp Endocrinol

journal_title

General and comparative endocrinology

authors

Suzuki N,Suzuki D,Sasayama Y,Srivastav AK,Kambegawa A,Asahina K

doi

10.1006/gcen.1999.7261

keywords:

subject

Has Abstract

pub_date

1999-06-01 00:00:00

pages

324-9

issue

3

eissn

0016-6480

issn

1095-6840

pii

S0016-6480(99)97261-1

journal_volume

114

pub_type

杂志文章

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