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This article looked at the conflicts in depth between the “moral majority” and vulnerable to HIV homosexu-al of “minority”.Both group of the moral and status of social were discussed , and then put forward social justice and in-clusive moral of “moral majority” and“minority”, and take the analysis from the perspective of the “moral majority” and“minority” for the Ethics .
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This study was aimed to evaluate the quality ofYuan-Hu Zhi-Tong (YHZT) tablet from different manufacturers by high performance liquid chromatography (HPLC) fingerprint. An HPLC method was developed to establish the fingerprint of 12 batches of YHZT from 10 manufacturers. The common peaks were confirmed by mass spectrometric analysis. Similarity analysis (SA), hierarchical cluster analysis (HCA) and principal component analysis (PCA) were applied to analyze the fingerprint chromatography. The results showed that there were 15 common peaks in which 12 components were from Corydalis Rhizoma and 3 from Radix Angelicae Dahuricae. The similar degrees of 12 batches of YHZT tablet were between 0.498 and 0.999. Based on the values, they could fall into three groups. The result of HCA showed that 12 batches of samples could be divided into 3 classes. The results of PCA indicated that the first three principal components (PCs) could represent the 15 common peaks. According to the scores of 3 PCs, 12 batches of samples could be divided into three categories. The classification result was mainly affected by the components of Corydalis Rhizoma. The classification results of three methods were basically the same. Based on the combination of three methods, 12 samples can be divided into three grades in the aspect of quality. It was concluded that the quality differences of YHZT tablet from different manufacturers were obvious. The combining application of three methods can be used in the evaluation on fingerprint of samples from different sources and influence factor analysis. It can be used as an effective method for quality evaluation.
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Objective To reduce the animal component contamination for human embryonic stem cells ( hESCs ) and to simplify hESCs culture process , we develop a new coating substrate which can support the hESCs growth without dif -ferentiation, and is easy to store and use. Methods Mouse embryonic fibroblasts(MEF)were fixed on the surface of plate by methanol.hESCs were cultured on this new substrate and were passaged every 5 to 6 days.After 10 passages, we checked the cell morphology , alkaline phosphatase expression , embryonic specific markers and the differentiation ability in vitro.Results After 10 passages , the hESCs grew well on this new substrate and maintained the typical hESCs morpholo -gy.Alkaline phosphatase staining was positive .Immunofluorescence staining showed that the expressions of Oct 4, SSEA4, Tra-1-60 were positive .The cells formed embryoid body in vitro .Conclusions This methanol-fixed MEF substrate can support the growth of undifferentiated hESCs .The coating material can be produced in large scale and stored for a long time.It provides a new and relatively easy way to amplify hESCs .
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This study was aimed to optimize extraction technology of Asperosaponin VI from Dipsaci Radix by re-sponse surface methodology (RSM). A single-factor test and Box-Behnken design (BBD) were employed to optimize three extraction variables, including extraction time (A), ethanol concentration (B), and the ratio of ethanol to materi-al (C). The transfer rate of Asperosaponin VI was used as the evaluation index. The results showed that the optimized conditions were A of 33.13 min, B of 51.58 %, C of 23.39 mL·g-1. Under these conditions, the transfer rate was 88.39 ± 0.212% (n = 3), which was well matched with the predicted transfer rate. It was concluded that RSM can be used for extraction optimization of ultrasonic extraction process for Asperosaponin VI. This method had certain prac-tical values.
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Clinopodii Herba is a type of traditional folk medicine. Modern research showed that Clinopodii Herba contains triterpenes and its saponins, flavones, volatile oil, phenylpropanoids and other chemical components. It has many pharmacological activities such as hemostasis, antibiosis, hypoglycemic activity, anti-oxidation, and anti-in-flammation. The main clinical application of Clinopodii Herba is for the treatment of various types of bleeding. After searching literatures on Clinopodii Herba for the recent 20 years, this article reviewed the chemical components, pharmacological activities, clinical application and research condition of Clinopodii Herba in order to provide further references for this medicine.
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objective: To observe the variations of stress magnitude in the cervical vertebra exerted by vertical traction force from various angles and different points. Methods: The cervical vertebra model was produced by using elastic material of light (polycarbonate) and silica rubber(1:1). By calculating the arithmetical progression of interference fringe. The author judged the stress magnitude in the posterior edge of the C4-7 vertebral bodies when different kinds of pulling force acted on. Result: The interference pattern was seen clearly on the screen while the force acted on the model. When the pulling force acted on C1 or C2, the force was acting at an angle of 150the maximum of the stress presented in C4-5 and when the force acted at an angle of 25° the maximum stress presented in C5-6 and C6-7. Conclusion: The stress distributed upon the posterior edge of the vertebral joints is closely related to the points that the force aced on and the direction of the force． Appropriate points and direction of the pull should be selected according to the change of the lesion joints when manual manipulation is used for the treatment of cervical vertebral disease.