Plasma levels of atrial natriuretic factor in nonhibernating and hibernating marmots |
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| Authors: | M L Zatzman G V Thornhill |
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| Institution: | Department of Physiology, University of Missouri Health Science Center, Columbia 65212. |
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| Abstract: | Plasma atrial natriuretic factor (ANF) was measured in 16 marmots at various times of the year. Nonhibernating males (n = 6) had an average plasma concentration of 56 +/- 8 pg/ml; nonhibernating females (n = 6) had an average plasma concentration of 61 +/- 4 pg/ml. During hibernation an additional group of females (n = 4) showed an average of 25 +/- 5 pg/ml. Plasma ANF of both groups of nonhibernating marmots was significantly higher (P less than 0.01) than that the hibernating group, but there was no difference between nonhibernating males and females. |
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