PMID- 30201543 OWN - NLM STAT- MEDLINE DCOM- 20191213 LR - 20191217 IS - 1531-4332 (Electronic) IS - 1095-6433 (Linking) VI - 227 DP - 2019 Jan TI - Regulation of mitochondrial biosynthesis and function by dietary carbohydrate levels and lipid sources in juvenile blunt snout bream Megalobrama amblycephala. PG - 14-24 LID - S1095-6433(18)30129-6 [pii] LID - 10.1016/j.cbpa.2018.08.008 [doi] AB - This study aimed to investigate the effects of dietary non-protein energy adjustments on the mitochondrial biosynthesis and function of juvenile Megalobrama amblycephala. Fish (average weight: 37.98 +/- 0.07 g) were fed eight diets containing two dietary carbohydrate levels (30% and 43%) and four lipid sources (fish oil, soybean oil, palm oil and the mixed oil) for 11 weeks. Liver mitochondrial respiratory chain complex V activity and ATP (adenosine triphosphate) content both increased significantly with increasing dietary carbohydrate levels, whereas the opposite was true for the AMP (adenosine 5'-monophosphate)/ATP ratio, hepatic transcripts of AMP-activated protein kinase alpha1 (AMPKalpha1), AMPKalpha2, peroxisome proliferators gamma-activated receptor coativator-1alpha (PGC-1alpha), NADH dehydrogenase 1 and cytochrome c oxidase 1 (COX1) as well as the activities of Na(+)-K(+)-ATPase, succinate dehydrogenase (SDH), citrate synthase (CS) and mitochondrial respiratory chain complex I, III and IV. Additionally, hepatic ATP content, the transcripts of AMPKalpha, COX1 and ATP6 and the activities of Na(+)-K(+)-ATPase, SDH, CS and mitochondrial respiratory chain complex III were all significantly affected by lipid sources. Furthermore, an interaction between dietary carbohydrate levels and lipid sources was also observed in the activities of liver mitochondrial Na(+)-K(+)-ATPase and respiratory chain complex III as well as the transcripts of ATP6 and PGC-1alpha. Overall, these findings suggested that dietary carbohydrate levels and lipid sources remarkably affected the mitochondrial biosynthesis and function of M. amblycephala. A diet containing 30% carbohydrate and FO could boost its mitochondrial biosynthesis, while that of 30% carbohydrate and SO could enhance the mitochondrial function. CI - Copyright (c) 2018 Elsevier Inc. All rights reserved. FAU - Li, Xiang-Fei AU - Li XF AD - Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, Nanjing 210095, People's Republic of China. FAU - Wang, Bing-Ke AU - Wang BK AD - Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, Nanjing 210095, People's Republic of China. FAU - Xu, Chao AU - Xu C AD - Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, Nanjing 210095, People's Republic of China. FAU - Shi, Hua-Juan AU - Shi HJ AD - Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, Nanjing 210095, People's Republic of China. FAU - Zhang, Li AU - Zhang L AD - Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, Nanjing 210095, People's Republic of China. FAU - Liu, Jia-Dai AU - Liu JD AD - Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, Nanjing 210095, People's Republic of China. FAU - Tian, Hong-Yan AU - Tian HY AD - Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, Nanjing 210095, People's Republic of China. FAU - Liu, Wen-Bin AU - Liu WB AD - Key Laboratory of Aquatic Nutrition and Feed Science of Jiangsu Province, College of Animal Science and Technology, Nanjing Agricultural University, No.1 Weigang Road, Nanjing 210095, People's Republic of China. Electronic address: wbliu@njau.edu.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20180907 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 (Dietary Carbohydrates) RN - 0 (Enzymes) RN - 0 (Fish Proteins) RN - 415SHH325A (Adenosine Monophosphate) RN - 8L70Q75FXE (Adenosine Triphosphate) SB - IM MH - Adenosine Monophosphate/metabolism MH - Adenosine Triphosphate/metabolism MH - Animal Feed MH - Animals MH - Cyprinidae/*metabolism MH - Dietary Carbohydrates/*metabolism MH - Electron Transport MH - Enzymes/genetics/metabolism MH - Fish Proteins/metabolism MH - *Lipid Metabolism MH - Mitochondria, Liver/enzymology/*metabolism OTO - NOTNLM OT - Blunt snout bream OT - Carbohydrate level OT - Lipid source OT - Mitochondrial biosynthesis OT - Mitochondrial function EDAT- 2018/09/12 06:00 MHDA- 2019/12/18 06:00 CRDT- 2018/09/12 06:00 PHST- 2018/02/06 00:00 [received] PHST- 2018/08/04 00:00 [revised] PHST- 2018/08/13 00:00 [accepted] PHST- 2018/09/12 06:00 [pubmed] PHST- 2019/12/18 06:00 [medline] PHST- 2018/09/12 06:00 [entrez] AID - S1095-6433(18)30129-6 [pii] AID - 10.1016/j.cbpa.2018.08.008 [doi] PST - ppublish SO - Comp Biochem Physiol A Mol Integr Physiol. 2019 Jan;227:14-24. doi: 10.1016/j.cbpa.2018.08.008. Epub 2018 Sep 7.