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Oscillatory behavior of control‐systems of calcium homeostasis in chickens
Year:
1994
Source of publication :
Journal of Cellular Biochemistry
Authors :
הורויץ, שמואל (בעלי חיים)
;
.
Volume :
56
Co-Authors:
Hurwitz, S., Institute of Animal Science, The Volcani Center, Bet Dagan, 50250, Israel, The Department of Biochemistry, University of California, Riverside, California, 92521, United States
Miller, B., Institute of Animal Science, The Volcani Center, Bet Dagan, 50250, Israel, The Department of Biochemistry, University of California, Riverside, California, 92521, United States
Norman, A.W., Institute of Animal Science, The Volcani Center, Bet Dagan, 50250, Israel, The Department of Biochemistry, University of California, Riverside, California, 92521, United States
Facilitators :
From page:
236
To page:
244
(
Total pages:
9
)
Abstract:
Computer simulation of calcium homeostasis in chicks predicted an oscillatory behavior of bone calcium flow and kidney 25‐hydroxyvitamin D3‐1 hydroxylase with a periodicity of 56 h and a 9 h phase difference between the two signals. In growing chickens subjected to a light: dark cycle of 22:2 h, and intravenously dosed with 45Ca, the temporal changes in plasma 45Ca could be described by an exponential decline with superimposed diurnal oscillations. The activity of the renal 25‐hydpoxyvitamil D3‐1‐hydroxylase in chicks subjected to a 12:12 h light: dark cycle ALSO followed diupnal oscillations, with a ladir at the beginning of the light period and a peak 12 h later. The production of 1,25‐dihydroxyvitamin D3 by primary cultures of chicken kidney cells mscillated with a periodicity of 5.6 h or shorter. It is suggested that despite the differences in phase and periodicity between the simulation predictions and actual results, the oscillations in both 1‐hydroxylase and bone calcium flow could be coupled through the hormonal systems involved in regulation of plasma calcium. Copyright © 1994 Wiley‐Liss, Inc.
Note:
Related Files :
aging
Animal
animal experiment
Bone
calcitriol
Chickens
computer simulation
kidney cell
Male
Models, Biological
עוד תגיות
תוכן קשור
More details
DOI :
10.1002/jcb.240560218
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
24104
Last updated date:
21/08/2022 07:45
Creation date:
17/04/2018 00:05
You may also be interested in
Scientific Publication
Oscillatory behavior of control‐systems of calcium homeostasis in chickens
56
Hurwitz, S., Institute of Animal Science, The Volcani Center, Bet Dagan, 50250, Israel, The Department of Biochemistry, University of California, Riverside, California, 92521, United States
Miller, B., Institute of Animal Science, The Volcani Center, Bet Dagan, 50250, Israel, The Department of Biochemistry, University of California, Riverside, California, 92521, United States
Norman, A.W., Institute of Animal Science, The Volcani Center, Bet Dagan, 50250, Israel, The Department of Biochemistry, University of California, Riverside, California, 92521, United States
Oscillatory behavior of control‐systems of calcium homeostasis in chickens
Computer simulation of calcium homeostasis in chicks predicted an oscillatory behavior of bone calcium flow and kidney 25‐hydroxyvitamin D3‐1 hydroxylase with a periodicity of 56 h and a 9 h phase difference between the two signals. In growing chickens subjected to a light: dark cycle of 22:2 h, and intravenously dosed with 45Ca, the temporal changes in plasma 45Ca could be described by an exponential decline with superimposed diurnal oscillations. The activity of the renal 25‐hydpoxyvitamil D3‐1‐hydroxylase in chicks subjected to a 12:12 h light: dark cycle ALSO followed diupnal oscillations, with a ladir at the beginning of the light period and a peak 12 h later. The production of 1,25‐dihydroxyvitamin D3 by primary cultures of chicken kidney cells mscillated with a periodicity of 5.6 h or shorter. It is suggested that despite the differences in phase and periodicity between the simulation predictions and actual results, the oscillations in both 1‐hydroxylase and bone calcium flow could be coupled through the hormonal systems involved in regulation of plasma calcium. Copyright © 1994 Wiley‐Liss, Inc.
Scientific Publication
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