[Changes of the microarchitecture of alveolar bone due to different duration of ovariectomy: a Micro-CT study in rats].

Purpose: To study the changes of microarchitecture of alveolar bone due to different duration of ovariectomy in rats.

Methods: Twenty-four virgin Sprague-Dawley rats were randomly assigned to ovariectomy group (OVX) or sham-ovariectomy group (sham). OVX rats were subjected to bilateral ovariectomy and sham-ovariectomy was conducted in sham rats.

[Repair of calvarial defect using a tissue-engineered bone with simvastatin-loaded β-tricalcium phosphate scaffold and adipose derived stem cells in rabbits].

Purpose: The osteogenic-angiogenic differentiation effects of simvastatin (Sim) were explored on adipose tissue-derived stem cells (ASCs). A tissue-engineered bone with simvastatin loaded β-tricalcium phosphate (β-TCP) scaffold and ASCs was constructed to repair the calvarial defect in rabbits.

Methods: ASCs were obtained from the groin of rabbits.

Evaluation preparation technology of Xiaochaihu granules using fingerprint-peak pattern matching.

An approach was proposed to evaluate preparation technology by means of fingerprint-peak matching technology of high Performance liquid chromatography with diode array detector (HPLC-DAD). Similarity and hierarchical clustering analysis (HCA) were applied to identify the 15 batches of Xiaochaihu granules from different manufacturers and our laboratory, and peak pattern matching between the composite formulae and Chinensis, which was one of the main ingredients of Xiaochaihu granules, was utilized to evaluate the preparation technology of Xiaochaihu granules via the indexes of the relative deviation of retention time (RT) and UV spectrum feature similarity of their corresponding peaks. Eleven matching peaks were found between Xiaochaihu granules and Chinensis.

[Contrasting study of erythritol and xylitol on Streptococcus mutans].

Objective: To study the inhibitory effect of erythritol by contrast to xylitol on growth and acid production of Streptococcus mutans (S. mutans).

Methods: S.

Antioxidant responses to benzo[a]pyrene, tributyltin and their mixture in the spleen of Sebasticus marmoratus.

It has been reported that there is an interaction between Benzo[a]pyrene (BaP), a widespread carcinogenic polycyclic aromatic hydrocarbon, and tributyltin (TBT), an organometal used as an antifouling biocide. This study was therefore designed to examine the potential in vivo influence of BaP, TBT and their mixture on splenic antioxidant defense systems of Sebastiscus marmoratus. The fish were exposed to water containing environmentally relevant concentrations of BaP, TBT and their mixture.

[Preconcentration with crosslinked chitosan for determination of trace manganese in waters by flame atomic absorption spectrometry].

A novel method for the preconcentration with crosslinked chitosan (CCTS) and determination of trace manganese in waters by flame atomic absorption spectrometry has been presented. The absorption rate of manganese (VII) by CCTS was 98% at pH 3.00.