PMID- 17317250
OWN - NLM
STAT- MEDLINE
DCOM- 20070716
LR  - 20131121
IS  - 1095-6433 (Print)
IS  - 1095-6433 (Linking)
VI  - 147
IP  - 2
DP  - 2007 Jun
TI  - Daily changes in parameters of energy metabolism in liver, white muscle, and 
      gills of rainbow trout: dependence on feeding.
PG  - 363-74
AB  - We assessed the daily patterns of parameters involved in energy metabolism in 
      liver, white muscle, and gills of rainbow trout. Where daily rhythms were found, 
      we analyzed the potential influence of feeding. Immature rainbow trout were 
      randomly distributed in 3 groups: fish fed for 7 days, fish fasted for 7 days, 
      and fish fasted for 7 days and refed for 4 days. On sampling day, fish of fed and 
      refed groups were fed at 11.00 h, and all fish were sampled from each treatment 
      group using the following time schedule: 14.00, 18.00, 21.00, 00.00, 04.00, 
      07.00, 10.00 and 14.00 h. The results obtained from metabolic parameters can be 
      grouped into four different categories, such as i) those displaying no daily 
      changes in any group assessed in liver (acetoacetate and lactate levels), white 
      muscle (protein levels, and low Km (glucose) hexokinase (HK) and HK-IV 
      activities) and gills (protein levels), ii) those displaying no 24 h changes in 
      fed fish but in refed or fasted fish in liver (glucose, glycogen, amino acid and 
      protein levels, and HK-IV activity), white muscle (glycogen and amino acid 
      levels) and gills (glucose levels), iii) those displaying 24 h changes that were 
      apparently dependent on feeding since they disappear in fasted fish in liver (Low 
      Km (glucose) HK, lactate dehydrogenase (LDH-O), glucose 6-phosphatase (G6Pase), 
      fructose 1,6-bisphosphatase (FBPase) , alpha-glycerophosphate dehydrogenase 
      (G3PDH), glutamate dehydrogenase (GDH) and aspartate aminotransferase (Asp-AT) 
      activities), white muscle (glucose levels, and pyruvate kinase (PK), LDH-O, G3PDH 
      and Asp-AT activities) and gills (glycogen and lactate levels, and Low Km 
      (glucose) HK, HK-IV, LDH-O and Asp-AT activities), and iv) those parameters 
      displaying 24 h changes apparently not dependent on feeding in liver (lactate 
      levels and PK activity) and gills (amino acid levels, and PK and GDH activities). 
      In general, most 24 h changes observed were dependent on feeding and can be also 
      related to daily changes in activity.
FAU - Polakof, Sergio
AU  - Polakof S
AD  - Laboratorio de Fisioloxia Animal, Departamento de Bioloxia Funcional e Ciencias 
      da Saude, Facultade de Bioloxia, Edificio de Ciencias Experimentais, Universidade 
      de Vigo, E-36310 Vigo, Spain.
FAU - Miguez, Jesus M
AU  - Miguez JM
FAU - Soengas, Jose L
AU  - Soengas JL
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20070126
PL  - United States
TA  - Comp Biochem Physiol A Mol Integr Physiol
JT  - Comparative biochemistry and physiology. Part A, Molecular & integrative 
      physiology
JID - 9806096
RN  - 0 (Enzymes)
RN  - 0 (Proteins)
RN  - 9005-79-2 (Glycogen)
RN  - IY9XDZ35W2 (Glucose)
SB  - IM
MH  - Analysis of Variance
MH  - Animals
MH  - *Energy Metabolism
MH  - Enzymes/metabolism
MH  - *Feeding Behavior
MH  - Food Deprivation
MH  - Gills/enzymology/*metabolism
MH  - Glucose/analysis
MH  - Glycogen/analysis
MH  - Kinetics
MH  - Liver/enzymology/*metabolism
MH  - Muscles/enzymology/*metabolism
MH  - Oncorhynchus mykiss/*metabolism
MH  - *Periodicity
MH  - Proteins/analysis
EDAT- 2007/02/24 09:00
MHDA- 2007/07/17 09:00
CRDT- 2007/02/24 09:00
PHST- 2006/11/27 00:00 [received]
PHST- 2007/01/08 00:00 [revised]
PHST- 2007/01/08 00:00 [accepted]
PHST- 2007/02/24 09:00 [pubmed]
PHST- 2007/07/17 09:00 [medline]
PHST- 2007/02/24 09:00 [entrez]
AID - S1095-6433(07)00066-9 [pii]
AID - 10.1016/j.cbpa.2007.01.009 [doi]
PST - ppublish
SO  - Comp Biochem Physiol A Mol Integr Physiol. 2007 Jun;147(2):363-74. doi: 
      10.1016/j.cbpa.2007.01.009. Epub 2007 Jan 26.