Effect of Human Umbilical Cord Mesenchymal Stem Cells on Etoposide-induced Nalm-6 Cell Apoptosis / 中国实验血液学杂志

<p><b>OBJECTIVE</b>To investigate the effect of human umbilical cord mesenchymal stem cells (hUC-MSC) on VP16-induced apoptosis of Nalm-6 cells.</p><p><b>METHODS</b>hUC-MSC were isolated and identified using morphological observation and flow cytometry, then Nalm-6 cells were treated with hUC-MSC with or without VP16. Apoptosis and cell cycle were assayed by FACS. The mRNA levels of apoptosis-related genes BCL-2, BAX and caspase-3 were detected by quantitative RT-PCR, and the protein levels of BCL-2, BAX and caspase-3 were examined by Western blot.</p><p><b>RESULTS</b>FACS showed that hUC-MSC inhibited the proliferation and decreased apoptosis of Nalm-6 cells resulted from VP16. The quantitative RT-PCR showed that hUC-MSC increased the mRNA expression level of BCL-2 and decreased the expression level of BAX and caspase-3 (P < 0.05). Western blot showed that the protein expression level of BCL-2 increased, and expression level of BAX and caspase-3 decreased in Nalm-6 cells after co-culture with hUC-MSC (P < 0.05).</p><p><b>CONCLUSION</b>hUC-MSC may protect Nalm-6 cells from apoptosis induced by VP16 through regulation of BCL-2, BAX and caspase-3.</p>

Research on medication regularity of pattern of internal accumulation of zhuodu in chronic atrophic gastritis based on correspondence between prescription and syndrome / 中草药

To study the medication regularity of Huazhuo Jiedu Formula in treating the chronic atrophic gastritis (CAG), and to explore the stable relationship of correspondence between Huazhuo Jiedu Formula and the pattern of internal accumulation of zhuodu. Statistical analysis was conducted among 200 cases of CAG, whose case histories included their gender, age, electronic gastroscope, pathological results, clinical symptoms, and prescriptions of Chinese materia medica. On the basis of "golden section method", the association rule between drugs and syndromes was investigated using frequency statistic method and association rule analysis. Through data processing, 153 kinds of Chinese herbal decoction were obtained. According to the principle of "golden section method", 15 kinds of Chinese herbal decoction, whose frequency of use was over 61.8% (including 61.8%), were used as the therapeutical core drugs of pattern of internal accumulation of zhuodu in CAG. Ten kinds of clinical symptoms, which had the high ocurrence rate, were the main symptoms of the pattern of internal accumulation of zhuodu in CAG. According to association rules analysis, it was found that there was a strong correlation between drugs and pulses, which explained the high degree of correspondence of prescription and syndromes between the pattern of internal accumulation of zhuodu in CAG and Huazhuo Jiedu Decoction. It can be seen that there exists a relationship of correspondence between Huazhuo Jiedu Formula and the pattern of internal accumulation of zhuodu in CAG. And it shows that the key pathogenesis of CAG is internal accumulation of zhuodu, and the corresponding treatment is Huazhuo Jiedu Method.