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Shimeng Yu,Danting Li,Yan Zhang,Hui Wang,Junjie Quan,Enze Xu,YANG JIANG 성균관대학교(자연과학캠퍼스) 성균나노과학기술원 2018 NANO Vol.13 No.6
Prussian blue analogs are receiving intense attention due to their high theoretical energy density and low cost, but their real applications are still hampered by poor electronic conductivity and cycling stability. Here, Na1.83Ni0.12Mn0.88Fe(CN)6 wrapped with graphene was synthesized by a facile co-precipitation method. The existence of RGO not only significantly increases the conductivity of the cathode, but also makes the framework much more robust during long cycling process. As the cathode, the Na1.83Ni0.12Mn0.88Fe(CN)6/RGO is able to deliver a high initial discharge capacity of 120mAh g-1 at a current density of 20mA g-1 with superior capacity retention of 96.7% after 100 cycles. Even at a current density of 1000mA g-1, the cell still delivers a capacity of 86mAh g-1, indicating outstanding rate capability. The results and the facile synthesis method enable Na1.83Ni0.12Mn0.88Fe(CN)6/RGO to the competitive for a future energy storage system.
Effect of ciglitazone on adipogenic transdifferentiation of bovine skeletal muscle satellite cells
( Junfang Zhang ),( Qiang Li ),( Yan Yan ),( Bin Sun ),( Ying Wang ),( Lin Tang ),( Enze Wang ),( Jia Yu ),( Kim Margarette Corpuz Nogoy ),( Xiangzi Li ),( Seong-Ho Choi ) 한국축산학회 2021 한국축산학회지 Vol.63 No.4
Ciglitazone is a member of the thiazolidinedione family, and specifically binds to peroxisome proliferator-activated receptor-γ (PPARγ), thereby promoting adipocyte differentiation. We hypothesized that ciglitazone as a PPARγ ligand in the absence of an adipocyte differentiation cocktail would increase adiponectin and adipogenic gene expression in bovine satellite cells (BSC). Muscle-derived BSCs were isolated from six, 18-month-old Yanbian Yellow Cattle. The BSC were cultured for 96 h in differentiation medium containing 5 μM ciglitazone (CL), 10 μM ciglitazone (CM), or 20 μM ciglitazone (CH). Control (CON) BSC were cultured only in a differentiation medium (containing 2% horse serum). The presence of myogenin, desmin, and paired box 7 (Pax7) proteins was confirmed in the BSC by immunofluorescence staining. The CL, CM, and CH treatments produced higher concentrations of triacylglycerol and lipid droplet accumulation in myotubes than those of the CON treatment. Ciglitazone treatments significantly increased the relative expression of PPARγ, CCAAT/enhancer-binding protein alpha (C/EBPα), C/EBPβ, fatty acid synthase, stearoyl-CoA desaturase, and perilipin 2. Ciglitazone treatments increased gene expression of Pax3 and Pax7 and decreased expression of myogenic differentiation-1, myogenin, myogenic regulatory factor-5, and myogenin-4 (p < 0.01). Adiponectin concentration caused by ciglitazone treatments was significantly greater than CON (p < 0.01). RNA sequencing showed that 281 differentially expressed genes (DEGs) were found in the treatments of ciglitazone. DEGs gene ontology (GO) analysis showed that the top 10 GO enrichment significantly changed the biological processes such as protein trimerization, negative regulation of cell proliferation, adipocytes differentiation, and cellular response to external stimulus. Kyoto Encyclopedia of Genes and Genomes pathway analysis showed that DEGs were involved in the p53 signaling pathway, PPAR signaling pathway, biosynthesis of amino acids, tumor necrosis factor signaling pathway, non-alcoholic fatty liver disease, PI3K-Akt signaling pathway, and Wnt signaling pathway. These results indicate that ciglitazone acts as PPARγ agonist, effectively increases the adiponectin concentration and adipogenic gene expression, and stimulates the conversion of BSC to adipocyte-like cells in the absence of adipocyte differentiation cocktail.