The Physiological and Metabolic Differences between Visceral and Subcutaneous Adipose Tissues in Nile tilapia (Oreochromis niloticus).

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dc.creatorYa-Wen, Wang
dc.creatorJi-Lei, Zhang
dc.creatorJian-Gang, Jiao
dc.creatorXiao-Xia, Du
dc.creatorSamwel Mchele Limbu
dc.creatorFang, Qiao
dc.creatorMei-Ling, Zhang
dc.creatorDong-Liang, Li
dc.creatorZhenyu, Du
dc.date2019-05-07T13:03:23Z
dc.date2019-05-07T13:03:23Z
dc.date2017-11-09
dc.date.accessioned2021-05-07T07:47:50Z
dc.date.available2021-05-07T07:47:50Z
dc.descriptionVisceral adipose tissue (VAT) and subcutaneous adipose tissue (SCAT) have different structures and metabolic functions and play different roles in the regulation of the mammal endocrine system. However, little is known about morphology and physiological and metabolic functions between VAT and SCAT in fish. We compared the morphological, physiological, and biochemical characteristics of VAT and SCAT in Nile tilapia and measured their functions in energy intake flux, lipolytic ability, and gene expression patterns. SCAT contained more large adipocytes and nonadipocytes than VAT in Nile tilapia. VAT had higher lipid content and was the primary site for lipid deposition. Conversely, SCAT had higher hormone-induced lipolytic activity. Furthermore, SCAT had a higher percentage of monounsaturated and lower polyunsaturated fatty acids than VAT. SCAT had higher mitochondrial DNA, gene expression for fatty acid β-oxidation, adipogenesis, and brown adipose tissue characteristics, but it also had a lower gene expression for inflammation and adipocyte differentiation than VAT. SCAT and VAT have different morphological structures, as well as physiological and metabolic functions in fish. VAT is the preferable lipid deposition tissue, whereas SCAT exhibits higher lipid catabolic activity than VAT. The physiological functions of SCAT in fish are commonly overlooked. The present study indicates that SCAT has specific metabolic characteristics that differ from VAT. The differences between VAT and SCAT should be considered in future metabolism studies using fish as models, either in biomedical or aquaculture studies.
dc.descriptionNational Basic Research Program of China (973 Program 2014CB138603) and National Natural Science Fund (31472290)
dc.identifierhttp://hdl.handle.net/20.500.11810/5216
dc.identifierhttps://doi.org/10.1152/ajpregu.00071.2017
dc.identifier.urihttp://hdl.handle.net/20.500.11810/5216
dc.publisherThe American Physiological Society
dc.subjectNile tilapia
dc.subjectvisceral adipose tissue
dc.subjectsubcutaneous adipose tissue
dc.subjectmetabolism
dc.subjectgene expression pattern
dc.titleThe Physiological and Metabolic Differences between Visceral and Subcutaneous Adipose Tissues in Nile tilapia (Oreochromis niloticus).
dc.typeJournal Article, Peer Reviewed

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Department of Aquatic Sciences and Fisheries Technology