Five new polyhydroxylated furostanol saponins from the rhizomes of Tupistra chinensis / 中国天然药物

Five new polyhydroxylated furostanol saponins were isolated from the roots and rhizomes of Tupistra chinensis, and their structures were determined as tupistrosides J-N (1-5), together with four known furostanol saponins (6-9), on the basis of physico-chemical properties and spectral analysis. Among them, compounds 3 and 5 showed cytotoxicity against human cancer cell lines SW620 with IC values of 72.5 ± 2.4 and 77.3 ± 2.5 μmol·L, respectively. Compound 4 showed cytotoxicity against human cancer cell line HepG2 with IC value of 88.6 ± 2.1 μmol·L.

The differences between adipose tissue derived stem cells and lipoma mesenchymal stem cells in characteristics / 中华整形外科杂志

<p><b>OBJECTIVE</b>To compared the biological characteristics of adipose-derived stem cells and lipoma-derived mesenchymal stem cells (LMSCs) in vitro, so as to assess the safety of adipose-derived stem cells( ASCs) for transplantation.</p><p><b>METHODS</b>Regular slice and stain of adipose and lipoma tissue were performed. ASCs and LMSCs were isolation from the two tissues by enzymatic digestion, and the appearance of the cultured cells was observed. The cell viability was evaluated with MTS chromatometry and cell growth curve was generated. Flow cytometry was performed for cell cycle analysis and the expression of the cell surface marker profiles. QRT-PCR was used to detect the expression of tumor-specific gene (the high-mobility group AT-hook 2, HMGA2), and immunocytochemistry was used to detect the expression of telomerase.</p><p><b>RESULTS</b>Marked difference was observed in histologic sections of adipose tissue and lipoma tissue. ASCs showed a good consistent in cell morphology while LMSCs not. ASCs showed a significant lower proliferation capacity than LMSCs by MTS chromatometry (P = 0.000). The expression of CD29, CD44, CD105 was similar in ASCs and LMSCs, while the level of CD133 was significantly lower in ASCs (5.35%) than in LMSCs (26.87%). The expression of HMGA2 was lower in ASCs (RQ = 1) than in LMSCs (RQ = 1.79) by qRT-PCR, it has statistically difference between them (P < 0.01); And in ASCs and LMSCs, the integrated optical intensity (IA) values of hTERT expression are 1379.597 +/- 498.617 and 3 328.108 +/- 902.856, size (area) are 132,390.27 +/- 35,568.945 and 238,000.53 +/- 49,264.289, density (mean) are 0.009 +/- 0.003 and 0.014 +/- 0.003, revealed the expression of hTERT also shown a significant lower level in ASCs than in LMSCs by immunocytochemistry.</p><p><b>CONCLUSIONS</b>It indicates significant difference between ASCs and LMSCs in the biological characteristics in vitro. There is no evidence of malignant transformation of ASCs.</p>

Expressions of MMP-2 and COX-2 mRNA in bladder transitional cell carcinoma and their correlation / 中华男科学杂志

<p><b>OBJECTIVE</b>To determine the levels of MMP-2 and COX-2 mRNA in bladder transitional cell carcinoma tissues and explore their relationship.</p><p><b>METHODS</b>We enrolled in this study 42 patients with bladder transitional cell carcinoma, including Ta-T1 (n = 18), T2-T4 (n = 24), G1 (n = 12), G2 (n = 19), G3 (n = 11), metastasis (n =26) and non-metastasis (n = 16). Another 5 cases of normal bladder tissues were taken as controls, and the levels of MMP-2 and COX-2 mRNA were detected by RT-PCR.</p><p><b>RESULTS</b>The relative expressions of COX-2 mRNA were 1.038 +/- 0. 484 in Ta-T1, 1.489 +/- 0.584 in T2-T4, 0.920 +/- 0.442 in G1, 1.338 +/- 0.584 in G2 and 1.632 +/- 0.515 in G3, all significantly higher than that of the controls (0.460 +/- 0.224, P < 0.05). And the corresponding relative levels of MMP-2 mRNA were 1.107 +/- 0.384, 1.604 +/- 0.425, 0.971 +/- 0.370, 1.445 +/- 0.378 and 1.755 +/- 0.387, also significantly higher than that of the latter group (0.423 +/- 0.227, P < 0.05). The COX-2 and MMP-2 mRNA levels in the tumor tissues with and without metastasis were 1.591 +/- 0.455 vs 0.815 +/- 0.430 and 1.676 +/- 0.339 vs 0.927 +/- 0.228, (P < 0.01), respectively, with a positive correlation between the mRNA level of COX-2 and that of MMP-2 (r = 0. 703, P < 0.01).</p><p><b>CONCLUSION</b>MMP-2 and COX-2 mRNA are highly expressed in bladder transitional cell carcinoma tissues and their expressions are positively correlated with the degree of malignancy. MMP-2 and COX-2 might play a synergetic role in the pathogenesis and progression of bladder transitional cell carcinoma.</p>

Studies on phenolic compounds from Polygonum aviculane / 中国中药杂志

<p><b>OBJECTIVE</b>To study the chemical constituents from the aerial parts of Polygomun aviculane.</p><p><b>METHOD</b>The chemical constituents were isolated by silica gel column chromatography and preparative silica thin layer chromatography, and their structures were elucidated on the basis of physico-chemical evidences and spectroscopic analysis (IR, MS, 1H and 13C-NMR).</p><p><b>RESULT</b>Seven phenolic compounds were identified as rosmarinic acid (1), gallic acid (2), gentisic acid 5-O-(6'-O-galloyl)-beta-D-glucopyranoside (3), caffeic acid (4), p-coumaric acid (5), ethyl caffeate (6) and acteoside (7), respectively.</p><p><b>CONCLUSION</b>Compounds 1, 3, 6 and 7 were isolated from this plant for the first time. These results provided theoretical evidences for the further bioactive investigation on this plant.</p>

Following up investigation of forensic psychiatry judicial expert mental testimony / 法医学杂志

OBJECTIVE@#To study different viewpoints to the conclusion and treatment, And the following up factors concerning social effect after the judgment of forensic psychiatry.@*METHODS@#By letters, calls, visits and by investigation forms made by myself, 208 testimonied cases were followed up separately from judicial organ or other organizations and institutes, individuals testimonied or their family members, victims and their family members.@*RESULTS@#Most testimonied individuals were married man of 30 years old or so whose average education were 4.84 years and testimonied by the public security organs. In criminal cases, violental criminals (129 cases, 83.77%) were much more than non-violental criminals (25 cases, 16.23%) and homicide criminals (44 cases, 28.57%) were most common in the former but civil cases were few. The rate of retstinvony was 2.93%. The testimonied individuals and their family members thought the condemn were appropriate (76.47%) for the people without criminal capacity and thought the condemn were appropriate (41.94%) or not appropriate (41.94%) for the people with criminal capacity. The opinions of the condemn for partial criminal capacity were between the former two cases. And they thought the condemn for 28 cases of non-guilty were appropriate (71.43%) and not appropriate (10.7%). 7 victims were dead. 10 victims were crippled. 10 victims restored to health. In 41 persons testimonied and set free with a verdict of "not guilty", 4 homicided again (4.87%), 2 set on fire (4.87%), 2 stealed (4.87%) and 3 had wrecked behavior (7.31%).@*CONCLUSION@#So it is suggested that the department concerned should keep criminals with mental disorder under control and treatment.