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Articles by Lingling Zhu
Total Records ( 2 ) for Lingling Zhu
  Qi Zhang , Guangji Wang , Jiye A , Bo Ma , Yu Dua , Lingling Zhu and Di Wu
  This study describes the metabolic profiles of the development of hyperlipidaemia in a rat model, utilizing metabonomics by gas chromatography–mass spectrometry (GC-MS) determination coupled with multivariate statistical analysis. Rat plasma samples were collected before and during a high-lipid diet at days 0, 7, 14, 21 and 28, and were analysed for lipid levels using kit assays or metabonomics using GC-MS. Forty-one endogenous metabolites were separated, identified and quantified using GC-MS. The data matrix was processed by principal component analysis or partial least squares discriminant analysis. Dynamic modification of the rat metabonome can be clearly identified and tracked at different stages of hyperlipidaemia in the rat model. Potential biomarkers, including β-hydroxybutyrate, tyrosine and creatinine, were identified. The current work suggests that metabonomics is able to provide an overview of biochemical profiles of disease progress in animal models. Using a metabonomic approach to identify physiopathological states promises to establish a new methodology for the early diagnosis of human diseases.
  Lingling Zhu , Miao Tan , Gang Lian , Deliang Cui , Xiao Zhang and Qilong Wang
  The phase transition of hBN nanocrystals induced by hydrothermal hot-pressing process has been investigated by XRD, FTIR, TEM and HRTEM. It was found that a phase transition of hBN → tBN → aBN occurred with increasing hot-pressing temperature, i.e., hBN transformed into tBN at above 270 °C, and followed by another transformation from tBN to aBN at 310 °C. In addition, FTIR spectra and HRTEM images indicate that a small amount of cBN formed directly from the amorphous BN matrix at 75 MPa and 310 °C. This phenomenon is similar to what happened in conventional high temperature and high pressure method, which is believed to promote the phase transition from hBN to cBN.
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