Optimisation of extraction conditions for total saponins from Cynanchum wallichii using response surface methodology and its anti-tumour effects.

Cynanchum wallichii Wight, is a traditional Chinese medicine herb, which is rich in saponins and has varieties of pharmacological activities. In this study, a standardized C. wallichii extract was established and the anti-tumor activity of the total saponins was evaluated by MTT assay.

Cilostazol inhibits plasmacytoid dendritic cell activation and antigen presentation.

Background: Cilostazol, an anti-platelet drug for treating coronary heart disease, has been reported to modulate immune cell functions. Plasmacytoid dendritic cells (pDCs) have been found to participate in the progression of atherosclerosis mainly through interferon α (IFN-α) production. Whether cilostazol influences pDCs activation is still not clear.

Correction method for the self-absorption effects in fluorescence extended X-ray absorption fine structure on multilayer samples.

A novel correction method for self-absorption effects is proposed for extended X-ray absorption fine structure (EXAFS) detected in the fluorescence mode on multilayer samples. The effects of refraction and multiple reflection at the interfaces are fully considered in this correction method. The correction is performed in k-space before any further data analysis, and it can be applied to single-layer or multilayer samples with flat surfaces and without thickness limit when the model parameters for the samples are known.

[Scalp flaps pedicled with superficial temporal vessel and hair removal for reconstruction of facial skin defects].

Objective: To investigate the therapeutic effect of scalp flaps pedicled with superficial temporal vessel and hair removal for reconstruction of facial skin defects.

Methods: From Jan. 2010 to Dec.

[Effect of high frequency electrocoagulation by ultrafine-needle on the cutaneous capillary hemangiomas: a preliminary study on cock combs].

Objective: To investigate the injury effect of high frequency electrocoagulation (HFE) by ultrafine-needle on the cutaneous capillary hemangiomas by histopathologic study of cock comb.

Methods: 32 male cocks were randomly divided into 4 groups with 8 animals in each group. 3 experimental groups received HFE with different power (6W, 8W, 10W) on the cock comb.

[Repairing alar defects by using a retro-grade island auricle composite tissue flap based on the interconnection of superficial temporal artery and posterior auricular artery].

Objective: To investigate the application of reverse island auricular composite tissue flap based on the superficial temporal artery for alar defects.

Methods: 16 cases with alar defects were treated with reverse island auricular composite tissue flap based on the superficial temporal artery.

Results: All the composite auricular flaps survived with primary healing.

[Analysis of unilateral complete cleft lip repaired with skin-vermilion flap method].

Objective: To introduce the skin-vermilion flap method repairing unilateral cleft lip and analyze the curative effect.

Methods: We repaired 45 cases with unilateral complete cleft lip by designing a skin-vermilion triangle flap in affected lateral lip to reconstruct the vermilion tubercle, solution, resetting and fixing orbicularis oris muscle, columella nasi and lateral angle of alae nasi, constructing basis nasi, and forming agger nasi between April and December of 2008.

Results: All the cases obtained primitively satisfactory effect.

[The origin and nature of embryonic stem cells].

The inner cell mass (ICM), blastomeres, epiblasts and primordial germ cells (PGCs) are usually used as primary materials for the establishment of embryonic stem cell (ESC) lines. ES-like cells have even been isolated from neonatal mouse testis. ESC are traditionally regarded as ICM cells, though some scholars believe they more closely resemble cells from the epiblast.