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Obesity has become a serious global public health problem; a deeper understanding of systemic change of chromatin accessibility during human adipogenesis contributes to conquering obesity and its related diseases. Here, we applied the ATAC-seq method to depict a high-quality genome-wide time-resolved accessible chromatin atlas during adipogenesis of human adipose-derived stem cells (hASCs). Our data indicated that the chromatin accessibility drastic dynamically reformed during the adipogenesis of hASCs and 8 h may be the critical transition node of adipogenesis chromatin states from commitment phase to determination phase. Moreover, upon adipogenesis, we also found that the chromatin accessibility of regions related to anti-apoptotic, angiogenic and immunoregulatory gradually increased, which is beneficial to maintaining the health of adipose tissue (AT). Finally, the chromatin accessibility changed significantly in intronic regions of peroxisome proliferator-activated receptor γ during adipogenesis, and these regions were rich in transcription factors binding motifs that were exposed for further regulation. Overall, we systematically analysed the complex change of chromatin accessibility occurring in the early stage of adipogenesis and deepened our understanding of human adipogenesis. Furthermore, we also provided a good reference data resource of genome-wide chromatin accessibility for future studies on human adipogenesis.

Fructus Cnidii, the dried ripe fruit of Cnidium monnieri (L.) Cusson., has been widely used in traditional Chinese medicine. Osthole and imperatorin are the main active ingredients of Fructus Cnidii and had been found of antispasmodic, anti-HIV, anti-fungal, anti-viral, anti-tumor, anti-mutagenic, anti-arrhythmic, hypotensive, and broad-spectrum antimicrobial effects. A supercritical fluid chromatography (SFC) method for isolation and purification of osthole and imperatorin from Fructus Cnidii was established in this work. The separation conditions, including the stationary phase, the organic modifier, the composition and the flow rate of the mobile phase, column backpressure and column temperature, were optimized on analytical scale at first. And then a semi-preparative SFC (SP-SFC) method was developed based on the conditions of analytical scale SFC. SP-SFC was accomplished on YMC-Pack NH2 column. Ethanol was used as the modifier and its percentage in the mobile phase was 3%. The flow rate of th...

The complete mitochondrial DNA sequence of Gymnocypris selincuoensis was determined and analyzed. This mitochondrial genome was 16,728bp in length and consisted of 37genes in the typical vertebrate mitochondrial gene arrangement. Phylogenetic analysis showed that G. selincuoensis is more closely related to G. namensis than to other species.

The complete mitochondrial DNA sequence of Schizothorax curilabiatus was determined and analyzed. This mitochondrial genome was 16,578bp in length and showed significant AT bias (55.5% AT content, 44.5% GC content). Phylogenetic analysis showed that S. curilabiatus is more closely related to S. oconnori than to other species. The complete mitochondrial genome sequence provides an important dataset for the exploration of mitochondrial inheritance mechanism.