ABSTRACT
Objective To evaluate therapeutic effects of Sini decoction (SND) on hypothyroidism based on serum meta-bonomics method .Methods Twenty-four rats were randomly divided into three groups including sham group ,surgery-induced hypothyroid model group and SND-treated group .The SND-treated group was given SND for 4 weeks .After 4 weeks ,the ser-um samples of each rat were collected and analyzed by UHPLC-Q-TOFMS ,pattern recognition analysis of metabolomics differ-ences among the groups and therapeutic effects of SND were evaluated .Results Total of 9 metabolites were identified through serum metabonomics analysis .It was showed that there was a possible mechanism that hypothyroidism was mainly involved in citrate cycle ,phenylalanine metabolism ,sphingolipid metabolism and phospholipid metabolism and the damage of hypothyroid-ism was reversed by SND .Conclusion SND administration could provide satisfactory effects on hypothyroidism through par-tially regulating the perturbed citrate cycle ,phenylalanine metabolism and phospholipid metabolism .
ABSTRACT
Objective To analyze chemical constituents of Xionggui Decotion by rapid‐resolution (high performance) liquid chromatography‐time of flight mass spectrometry (HPLC‐TOF‐MS) .Methods A Shelloseido column(100 mm × 3 .0 mm ,3 μm)was used to separate .The mobile phase consisted of water containing 0 .1% methane acid and acetonitrile was used as gradient elute .The flow rate was 0 .4 ml/min .TOF‐MS was applied for qualitative analysis under positive ion mode . Results Under LC/MS condition ,47 major constituents in Xionggui Decotion were identified by time of flight mass spectrome‐try and structure‐relevant fragment ions .Conclusion A simple and reliable method using HPLC‐TOF‐MS was established to i‐dentify the chemical constituents of Xionggui Decotion .
ABSTRACT
With the expansion of herbal medicine (HM) market, the issue on how to apply up-to-date analytical tools on qualitative analysis of HMs to assure their quality, safety and efficacy has been arousing great attention. Due to its inherent characteristics of accurate mass measurements and multiple stages analysis, the integrated strategy of liquid chromatography (LC) coupled with time-of-flight mass spectrometry (TOF-MS) and ion trap mass spectrometry (IT-MS) is well-suited to be performed as qualitative analysis tool in this field. The purpose of this review is to provide an overview on the potential of this integrated strategy, including the review of general features of LC-IT-MS and LC-TOF-MS, the advantages of their combination, the common procedures for structure elucidation, the potential of LC-hybrid-IT-TOF/MS and also the summary and discussion of the applications of the integrated strategy for HM qualitative analysis (2006-2011). The advantages and future developments of LC coupled with IT and TOF-MS are highlighted.