Metabonomic analysis of the serum from rat model with abnormal balgam syndrome of Uyghur medicine / 中南大学学报(医学版)

OBJECTIVE@#To investigate correlation between the change in metabolic components of serum and the abnormal balgam syndrome by using a rat model of abnormal balgam syndrome.@*METHODS@#Male Wistar rats were randomly divided into a control group and a test group. According to Uyghur medicine theory, the test group of rats were given wet cold diet (seeds of spinach and parsley, 24 hours) in a cold (6 °C) and humid (85%-95%, 10 hours) environment for 40 days to establish the rat model of abnormal balgam syndrome. 1H MR based metabonomic analysis of serum was performed. Data was analyzed using Orthogonal Partial Least Squares-Discriminant Analysis (OPLS-DA) software.@*RESULTS@#Compared with the control group, the serum components including glutamate, phenylalanine, tyrosine, citric acid, β-hydrocxy butyrate, acetoacetate, pyruvic acid and creatine were decreased, while the glucose, lactic acid, low density lipoprotein and very low density lipoprotein were increased in the test group (P<0.05).@*CONCLUSION@#The low energy production and consumption in the rat model of abnormal balgam syndrome suggests that the dysfunctional metabolisms of three major nutrients might be the molecular basis for the abnormal balgam syndrome.

[Construction of NF-kappaB siRNA expression vector].

OBJECTIVE: To construct a NF-kappaB siRNA expression vector and to detect the specific silencing effect of the siRNA on the expression of NF-kappaB protein. METHODS: pcDNA3.1/CT-GFP-TOPO recombinant eukaryotic expression vector and pSilencer 1.0-U6-siRNA-NF-kappaB recombinant vector were constructed respectively. These 2 recombination plasmids were co-transfected into COS-7 cells, and the NF-kappaB silence induced by RNAi was detected by Western blot and the inverted fluorescence microscope. RESULTS: The levels of NF-kappaB protein in COS-7 cells could be silenced effectively and specifically by pSilencer 1.0-U6-siRNA- NF-kappa recombinant vector. The expression of NF-kappaB protein was reduced gradually with the increase of pSilencer 1.0-U6-siRNA- NF-kappaB recombinant vector,which could be detected by Western blot under the inverted fluorescence microscope. CONCLUSION: NF-kappaB siRNA expression vector is constructed successfully.