Proteomic profiling of root system development proteins in chrysanthemum overexpressing the CmTCP20 gene.

Plant root systems ensure the efficient absorption of water and nutrients and provide anchoring into the soil. Although root systems are a highly plastic set of traits that vary both between and among species, the basic root system morphology is controlled by inherent genetic factors. TCP20 has been identified as a key regulator of root development in plants, and yet its underlying mechanism has not been fully elucidated, especially in chrysanthemum.

CmTCP20 Plays a Key Role in Nitrate and Auxin Signaling-Regulated Lateral Root Development in Chrysanthemum.

Lateral root (LR) formation and development play a vital role in plant development by permitting the establishment of branched root systems. It is well known that nutrient availability controls LR development. Moreover, LR development is fine-tuned by a myriad of hormonal signals.

[Hepatitis B virus X protein suppresses adriamycin-induced apoptosis of hepatocellular carcinoma cells and expression of p53 and PTEN].

Objective: To investigate the effect of hepatitis B virus X protein (HBx) on adriamycin-induced apoptosis of hepatocellular carcinoma cells and the expressions of p53 and PTEN.

Methods: HepG2, HepG2/GFP, and HepG2/GFP-HBx cells were treated with adriamycin (2.5 microg/ml), and the apoptotic cell death was determined by observing the morphological changes and flow cytometry.

New seco-milbemycins from Streptomyces bingchenggensis: fermentation, isolation and structure elucidation.

Two new seco-milbemycins have been isolated and characterized from the Streptomyces bingchenggensis. On the basis of detailed spectroscopic analysis and comparison with the reported data of milbemycin beta(14), their structures were established to be the seco-milbemycins of milbemycin beta(14). However, milbemycin beta(14) and the two new seco-milbemycins were not converted to each other during purification by silica gel column or storage in the MeOH extract at room temperature.

[Hepatitis B virus X protein suppressing adriamycin-induced apoptosis of HepG2 cells].

Objectives: To investigate the effect of hepatitis B virus X protein (HBx) on adriamycin-induced apoptosis of hepatocellular carcinoma cells.

Methods: HBx gene fragment was amplified from subtype adr HBV plasmid by PCR, and inserted into Hind III and Kpn I sites of green fluorescent protein (GFP) eukaryotic expression vector pEGFP-C1 to construct recombinant pGFP/HBx. The pEGFP-C1 and pGFP-HBx were introduced into HepG2 cells by Lipofectamine 2000 to obtain HepG2 cells expressing GFP.

[Effects of Chinese herbs for cool-moistening and freeing collaterals on serum gastrin and surface electrogastrogram in patients of diabetes mellitus with gastroparesis].

Objective: To explore the effect of Chinese herbs (CH) for cool-moistening and freeing collaterals on gastro-dynamic disturbance in patients of diabetes mellitus type 2 with gastroparesis (DM-GP).

Methods: Fifty-three patients of DM-GP were enrolled and treated with CH (n = 28) and Cisapride (n = 25) respectively for 4 weeks, the changes of gastrin and electro-gastrogram (EGG) before and after treatment were observed.

Results: After treatment, the EGG improved significantly, showing the rhythm significantly improved, and level of serum gastrin lowered significantly, as compared with those before treatment, the difference was significant (P<0.