Tissue and ontogenic expression profiles of FATP1 and FATP4 genes in goose

Fatty acid transport proteins (FATPs) are a family of proteins involved in fatty acid uptake and activation. The tissues and ontogenic expression profiles of the critical genes participating in fatty acid metabolism have little been systematically investigated in goose. To gain insight into the gene-regulation processes in goose fatty   acid metabolism, we detected the expression profiles of FATP1 and FATP4 transcripts in goose tissues using  the quantitative real-time PCR method in two goose breeds: Zhejiang white goose and Landes goose. The   results show that FATP1 and FATP4 genes were ubiquitously expressed in all seven studied geese tissues. Both genes exhibited tissue-specific expression pattern in mRNA level with the highest expression level in leg   muscle and the lowest in abdominal fat. The liver and heart were also two important tissues for both of genes expression. The growth points at 35 and 56 days were important points for both of genes expression. In   addition, for the two breeds, both genes showed Zhejiang white goose had higher expression than Landes  goose. It can be speculated that the expression of FATP1 and FATP4 genes may have breed-specific. The   results could serve as a primary reference for the expression profile of goose fatty acid metabolism.Key words: Expression pattern, FATP1, FATP4, Landes goose, Zhejiang white goose

Effect of P to B concentration ratio on soft magnetic properties in FeSiBPCu nanocrystalline alloys

The effects of P to B concentration ratio on magnetic properties and microstructure in annealed Fe82.65Si2B14-xPxCu1.35 (x = 1-6) soft magnetic alloys prepared by melt spinning were investigated. The proper substitution of B with P was found to be effective in decreasing grain size in the alloys annealed at 793 K for 120 s. The coercive force H-c markedly decreases from 67.1 to 1.1 A/m and the saturation magnetic flux density B-s shows a slightly decreasing trend with increasing P content from x = 1 to 5. The nanocrystalline Fe82.65Si2B9P5Cu1.35 alloy, with an average grain size of 15 nm, shows a combination of high B-s and excellent soft magnetic properties. (C) 2012 American Institute of Physics. [doi:10.1063/1.3672082

Magnetic properties and magnetocaloric effect of FeCrNbYB metallic glasses with high glass-forming ability

The influences of Cr addition on the Curie temperature (T-C), glass-forming ability (GFA), and magnetocaloric effect were investigated in FeCrNbYB metallic glasses. It was found that the addition of Cr element slightly decreases the GFA and saturation magnetization, whereas effectively modulates T-C. By the method of copper mold casting, bulk metallic glasses (BMGs) with critical diameters up to 5 mm can be obtained in Fe68-xCrxNb4Y6B22 (x = 2-6) alloys. The resulting metallic glasses exhibit T-C of 271-367 K and excellent magnetocaloric properties, including magnetic entropy change of 0.76-1.05 J/kg K, and refrigerant capacity of 83-93 J/kg under a low field change of 1.5 T. In addition, they exhibit a wide supercooled liquid region of 116-135 K. The successful synthesis of the FeCrNbYB BMGs with near room-temperature magnetocaloric properties is encouraging for the future development of Fe-based BMGs as a new magnetic refrigerant in magnetic cooling system. (C) 2014 Elsevier Ltd. All rights reserved

Effects of Cu and P on Crystallization and Magnetic Properties of FeSiB Alloy

The effects of Cu and P in the Fe84-xSi4B12-yPyCux (x = 0-0.9, y = 0-4) soft magnetic alloys on crystallization processes and magnetic properties were investigated. The apparent activation energy of Fe84Si4B8P4 and Fe83.3Cu0.7Si4B8P4 amorphous alloys are also calculated. The results show that Cu and P additions favor the first crystallization reaction and inhibit the second one of Fe84Si4B12 effectively. The saturation magnetic flux density B-s increases and the coercivity H-c decreases with increasing Cu content in the range of 0-0.9%. The simultaneous additions of Cu and P result in a good combination of high saturation magnetic flux density and low coercivity

Antioxidant Activity of Polysaccharide-enriched Fractions Extracted from Pulp Tissue of Litchi Chinensis Sonn.

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