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The metabolic response in fish to mildly elevated water temperature relates to species-dependent muscular concentrations of imidazole compounds and free amino acids

Fikremariam Geda, Annelies Declercq UGent, Sofie C Remø, Rune Waagbø, Marta Ribeiro Alves Lourenço and Geert Janssens UGent (2017) JOURNAL OF THERMAL BIOLOGY. 65. p.57-63
abstract
Fish species show distinct differences in their muscular concentrations of imidazoles and free amino acids (FAA). This study was conducted to investigate whether metabolic response to mildly elevated water temperature (MEWT) relates to species-dependent muscular concentrations of imidazoles and FAA. Thirteen carp and 17 Nile tilapia, housed one per aquarium, were randomly assigned to either acclimation (25 degrees C) or MEWT (30 degrees C) for 14 days. Main muscular concentrations were histidine (HIS; P < 0.001) in carp versus N-aacetylhistidine (NAH; P < 0.001) and taurine (TAU; P=0.001) in tilapia. Although the sum of imidazole (HIS +NAH) and TAU in muscle remained constant over species and temperatures (12 > 0.05), (NAH+HIS)/TAU ratio was markedly higher in carp versus tilapia, and decreased with MEWT only in carp (P < 0.05). Many of the muscular FAA concentrations were higher in carp than in tilapia (P < 0.05). Plasma acylcarnitine profile suggested a higher use of AA and fatty acids in carp metabolism (P < 0.05). On the contrary, the concentration of 3-hydroxyisovalezylcarnitine, a sink of leucine catabolism, (P=0.009) pointed to avoidance of leucine use in tilapia metabolism. Despite a further increase of plasma longer-chain acylcarnitines in tilapia at MEWT (P=0.009), their corresponding beta-oxidation products (3-hydroxy-longer-chain acylcarnitines) remained constant. Together with higher plasma non-esterified fatty acids (NEFA) in carp (P=0.001), the latter shows that carp, being a fatter fish, more readily mobilises fat than tilapia at MEWT, which coincides with more intensive muscular mobilization of imidazoles. This study demonstrates that fish species differ in their metabolic response to MEWT, which is associated with species-dependent changes in muscle imidazole to taurine ratio.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
Carp, Histidine, Mildly elevated water temperature, N-a-acetylhistidine, Taurine, Tilapia, N-ALPHA-ACETYLHISTIDINE, TILAPIA OREOCHROMIS-MOSSAMBICUS, HISTIDINE-RELATED COMPOUNDS, MILKFISH CHANOS-CHANOS, COMMON CARP, NILE TILAPIA, JAPANESE FLOUNDER, ATLANTIC SALMON, SKELETAL-MUSCLE, WHITE MUSCLE
journal title
JOURNAL OF THERMAL BIOLOGY
J. Therm. Biol.
volume
65
pages
57 - 63
Web of Science type
Article
Web of Science id
000399513900009
ISSN
0306-4565
DOI
10.1016/j.jtherbio.2017.02.004
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
8531257
handle
http://hdl.handle.net/1854/LU-8531257
date created
2017-09-15 08:31:29
date last changed
2017-11-10 10:17:15
@article{8531257,
  abstract     = {Fish species show distinct differences in their muscular concentrations of imidazoles and free amino acids (FAA). This study was conducted to investigate whether metabolic response to mildly elevated water temperature (MEWT) relates to species-dependent muscular concentrations of imidazoles and FAA. Thirteen carp and 17 Nile tilapia, housed one per aquarium, were randomly assigned to either acclimation (25 degrees C) or MEWT (30 degrees C) for 14 days. Main muscular concentrations were histidine (HIS; P {\textlangle} 0.001) in carp versus N-aacetylhistidine (NAH; P {\textlangle} 0.001) and taurine (TAU; P=0.001) in tilapia. Although the sum of imidazole (HIS +NAH) and TAU in muscle remained constant over species and temperatures (12 {\textrangle} 0.05), (NAH+HIS)/TAU ratio was markedly higher in carp versus tilapia, and decreased with MEWT only in carp (P {\textlangle} 0.05). Many of the muscular FAA concentrations were higher in carp than in tilapia (P {\textlangle} 0.05). Plasma acylcarnitine profile suggested a higher use of AA and fatty acids in carp metabolism (P {\textlangle} 0.05). On the contrary, the concentration of 3-hydroxyisovalezylcarnitine, a sink of leucine catabolism, (P=0.009) pointed to avoidance of leucine use in tilapia metabolism. Despite a further increase of plasma longer-chain acylcarnitines in tilapia at MEWT (P=0.009), their corresponding beta-oxidation products (3-hydroxy-longer-chain acylcarnitines) remained constant. Together with higher plasma non-esterified fatty acids (NEFA) in carp (P=0.001), the latter shows that carp, being a fatter fish, more readily mobilises fat than tilapia at MEWT, which coincides with more intensive muscular mobilization of imidazoles. This study demonstrates that fish species differ in their metabolic response to MEWT, which is associated with species-dependent changes in muscle imidazole to taurine ratio.},
  author       = {Geda, Fikremariam and Declercq, Annelies and Rem{\o}, Sofie C and Waagb{\o}, Rune and Ribeiro Alves Louren\c{c}o, Marta and Janssens, Geert},
  issn         = {0306-4565},
  journal      = {JOURNAL OF THERMAL BIOLOGY},
  keyword      = {Carp,Histidine,Mildly elevated water temperature,N-a-acetylhistidine,Taurine,Tilapia,N-ALPHA-ACETYLHISTIDINE,TILAPIA OREOCHROMIS-MOSSAMBICUS,HISTIDINE-RELATED COMPOUNDS,MILKFISH CHANOS-CHANOS,COMMON CARP,NILE TILAPIA,JAPANESE FLOUNDER,ATLANTIC SALMON,SKELETAL-MUSCLE,WHITE MUSCLE},
  language     = {eng},
  pages        = {57--63},
  title        = {The metabolic response in fish to mildly elevated water temperature relates to species-dependent muscular concentrations of imidazole compounds and free amino acids},
  url          = {http://dx.doi.org/10.1016/j.jtherbio.2017.02.004},
  volume       = {65},
  year         = {2017},
}

Chicago
Geda, Fikremariam, Annelies Declercq, Sofie C Remø, Rune Waagbø, Marta Ribeiro Alves Lourenço, and Geert Janssens. 2017. “The Metabolic Response in Fish to Mildly Elevated Water Temperature Relates to Species-dependent Muscular Concentrations of Imidazole Compounds and Free Amino Acids.” Journal of Thermal Biology 65: 57–63.
APA
Geda, F., Declercq, A., Remø, S. C., Waagbø, R., Ribeiro Alves Lourenço, M., & Janssens, G. (2017). The metabolic response in fish to mildly elevated water temperature relates to species-dependent muscular concentrations of imidazole compounds and free amino acids. JOURNAL OF THERMAL BIOLOGY, 65, 57–63.
Vancouver
1.
Geda F, Declercq A, Remø SC, Waagbø R, Ribeiro Alves Lourenço M, Janssens G. The metabolic response in fish to mildly elevated water temperature relates to species-dependent muscular concentrations of imidazole compounds and free amino acids. JOURNAL OF THERMAL BIOLOGY. 2017;65:57–63.
MLA
Geda, Fikremariam, Annelies Declercq, Sofie C Remø, et al. “The Metabolic Response in Fish to Mildly Elevated Water Temperature Relates to Species-dependent Muscular Concentrations of Imidazole Compounds and Free Amino Acids.” JOURNAL OF THERMAL BIOLOGY 65 (2017): 57–63. Print.