Table VI
Effect of Hypophysectomy and Injection of Hormones on Plasma Electrolyte Composition of the Freshwater Ee1a.b
(Doses of hormones per 100 g body weight per day: ACTH, 1.5 IU; prolactin, 2 mg; and cortisol, 20 pg)
Group
Na
K
Ca
Mg
n
(mmole/liter)
(mmole/liter)
(mmole/liter)
(mmole/liter)
Intact
10
152 +_ 1.7
1.74 f 0.14
2.38 +_ 0.08
2.61 f 0.14
Sham-operated + saline
5
151 1 0 . 8
1.88 f 0.10
2.42 f 0.12
2.65 f 0.20
Hypophysectomized + saline
8
109 f 4.7"
2.28 f 0.10"
1.93 f 0.08"
2.34 f 0.24
Hypophysectomized + prolactin
9
123 f 4 . l C
1.97 * 0.12
2.01 *0.1@
2.24 * 0.18
Hypophysectomized + ACTH
7
118 f 4.5"
1.52 f 0.20
1.98 f 0.11"
2.64 f 0.20
Hypophysectomized + cortisol
8
119 f 7 . P
1.10 f 0.23"
1.76 f 0.10"
2.28 f 0.20
Hypophysectomized + cortisol + prolactin
9
150 f 1.2
1.92 f 0.10
2.60 f 0.28
2.87 f 0.18
~~
a From D. K. 0. Chan et al. (1968b).
b The animals were killed following the tenth injection. Means f S.E.
p = <0.05 compared with intact or saline injected groups.