Systems Signatures Reveal Unique Remission-path of Type 2 Diabetes Following Roux-en-Y Gastric Bypass Surgery.

Roux-en-Y Gastric bypass surgery (RYGB) is emerging as a powerful tool for treatment of obesity and may also cause remission of type 2 diabetes. However, the molecular mechanism of RYGB leading to diabetes remission independent of weight loss remains elusive. In this study, we profiled plasma metabolites and proteins of 10 normal glucose-tolerant obese (NO) and 9 diabetic obese (DO) patients before and 1-week, 3-months, 1-year after RYGB.

[Application of metabolomics in research of plant metabolites].

Metabolomics, a branch of systems biology, has gained extensive attention and profound achievements in the plant. Although plant metabolomics is to be explored, it has been one of the most effective methods to study the physiological and biochemical process and gene modification in pattern plants. We herein summarized the concept, development, and application of metabolomics and prospected the potentials in the metabolite profiling for plant.

[Adventitious root induction and in vitro culture of Panax notoginseng].

Objective: To investigate the induction and culture of adventitious root of Panax notoginseng.

Method: Three ways, induction from the explants of three-year-old P. notoginseng.

Analysis of dencichine in Panax notoginseng by gas chromatography-mass spectrometry with ethyl chloroformate derivatization.

Dencichine (beta-N-oxalyl-l-alpha,beta-diaminopropionic acid) is a haemostatic agent present in well-known traditional Chinese medicinal herbs such as Panax notoginseng, as well as other Panax species. It is also a reported neurotoxic agent found in Lathyrus sativus (grass pea seed) and cycad seeds. A method was developed for quantitative determination of the non-protein amino acid, dencichine, in plant samples of P.