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Serum Calcium and Phosphate Levels of Calcitonin Treated Freshwater Mud Eel, Amphipnous Cuchia Kept in Different Calcium Environments

Serum Calcium and Phosphate Levels of Calcitonin Treated Freshwater Mud Eel, Amphipnous Cuchia... SERUM CALCIUM AND PHOSPHATE LEVELS OF CALCITONIN TREATED FRESHWATER MUD EEL, AMPHIPNOUS CUCHIA KEPT IN DIFFERENT CALCIUM ENVIRONMENTS by AJAI K. SRIVASTAV1), P.R. TIWARI1), S.K. SRIVASTAV1), Y SASAYAMA2) and N. SUZUKI2) (1Department of Zoology, University of Gorakhpur, Gorakhpur 273 009, India; 2Noto Marine Laboratory, Kanazawa University, Ogi-Uchiura, Ishikawa 927-05, Japan) ABSTRACT Calcitonin (CT; 0.5 MRC unit/100 g body wt/day) was administered daily intraperitoneally to the freshwater mud eel, Amphipnous cuchia kept in artificial freshwater (0.8 mmol/l CaCl2), calcium-deficient freshwater (0 mmol/l CaCl2), low-calcium freshwater (0.2 mmol/l CaCl2) and calcium-rich freshwater (13.4 mmol/l CaCl2) for 15 days. Analyses of serum calcium and phosphate levels were performed on day 1, 3, 5, 10 and 15 following the start of the experiment. Administration of CT showed no effect in the fish kept in artificial freshwater and calcium-rich freshwater whereas hypocalcemia was recorded in the fish kept in calcium- deficient freshwater and low-calcium freshwater. The effect of CT on serum phosphate levels is variable. No effect (in the fish kept in artificial freshwater and calcium-rich freshwater), initial hypophosphatemia followed by hyperphosphatemia (calcium-deficient freshwater) and hyperphosphatemia (low-calcium freshwater) were noticed. KEY WORDS: calcitonin, calcium, phosphate, freshwater mud eel. INTRODUCTION In fish the hormone http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Netherlands Journal of Zoology (in 2003 continued as Animal Biology) Brill

Serum Calcium and Phosphate Levels of Calcitonin Treated Freshwater Mud Eel, Amphipnous Cuchia Kept in Different Calcium Environments

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Publisher
Brill
Copyright
© 1997 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0028-2960
eISSN
1568-542X
DOI
10.1163/156854298X00174
Publisher site
See Article on Publisher Site

Abstract

SERUM CALCIUM AND PHOSPHATE LEVELS OF CALCITONIN TREATED FRESHWATER MUD EEL, AMPHIPNOUS CUCHIA KEPT IN DIFFERENT CALCIUM ENVIRONMENTS by AJAI K. SRIVASTAV1), P.R. TIWARI1), S.K. SRIVASTAV1), Y SASAYAMA2) and N. SUZUKI2) (1Department of Zoology, University of Gorakhpur, Gorakhpur 273 009, India; 2Noto Marine Laboratory, Kanazawa University, Ogi-Uchiura, Ishikawa 927-05, Japan) ABSTRACT Calcitonin (CT; 0.5 MRC unit/100 g body wt/day) was administered daily intraperitoneally to the freshwater mud eel, Amphipnous cuchia kept in artificial freshwater (0.8 mmol/l CaCl2), calcium-deficient freshwater (0 mmol/l CaCl2), low-calcium freshwater (0.2 mmol/l CaCl2) and calcium-rich freshwater (13.4 mmol/l CaCl2) for 15 days. Analyses of serum calcium and phosphate levels were performed on day 1, 3, 5, 10 and 15 following the start of the experiment. Administration of CT showed no effect in the fish kept in artificial freshwater and calcium-rich freshwater whereas hypocalcemia was recorded in the fish kept in calcium- deficient freshwater and low-calcium freshwater. The effect of CT on serum phosphate levels is variable. No effect (in the fish kept in artificial freshwater and calcium-rich freshwater), initial hypophosphatemia followed by hyperphosphatemia (calcium-deficient freshwater) and hyperphosphatemia (low-calcium freshwater) were noticed. KEY WORDS: calcitonin, calcium, phosphate, freshwater mud eel. INTRODUCTION In fish the hormone

Journal

Netherlands Journal of Zoology (in 2003 continued as Animal Biology) – Brill

Published: Jan 1, 1997

Keywords: phosphate; freshwater mud eel; calcium; calcitonin

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