Abstract
Oxygen consumption and ammonia excretion of the Antarctic fish Notothenia corikeps (18.4 cm L-F) increased respectively two and fourfold above fasting levels 24 h after feeding with a single meal of shrimps (5.5 to 7.5% of body mass), and remained elevated for 120 h. In fasted fish, c-met positive cells in the fast muscle represented 5.5% of the total number of myonuclei. The number of c-met positive cells staining for the proliferating cell nuclear antigen was increased by 60% both 24 and 96 h after the meal, while the number of cells expressing the myogenic transcription factor, MyoD, was increased by 20% after 24 h, and by 44% after 96 h. The total numbers of c-met positive cells and cells expressing myogenin were not significantly altered 96 h following feeding. The results are consistent with an activation of myogenic progenitor cells proliferation by feeding but suggest a relatively long cell cycle time. (C) 2002 The Fisheries Society of the British Isles. Published by Elsevier Science Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 1475-1485 |
Number of pages | 11 |
Journal | Journal of Fish Biology |
Volume | 60 |
DOIs | |
Publication status | Published - Jun 2002 |
Keywords
- myogenic precursor
- satellite cell
- SDA
- MyoD
- myogenin
- Antarctic fish
- MUSCLE SATELLITE CELLS
- SKELETAL-MUSCLE
- PROTEIN-SYNTHESIS
- ANTARCTIC FISH
- CHANNEL CATFISH
- DYNAMIC ACTION
- GROWTH
- DEATH
- TEMPERATURE
- RICHARDSON