Long-term effect and safety of non-occlusive intra-vas device for male contraception / 中华男科学杂志

<p><b>OBJECTIVE</b>To assess the long-term effect and safety of non-occlusive intra-vas device (IVD) for male contraception in comparison with no-scalpel vasectomy (NSV).</p><p><b>METHODS</b>We conducted a follow-up investigation on 100 males who had received IVD and another 50 who had undergone NSV 6 years before. We compared the rates of sperm absence and complications between the two groups.</p><p><b>RESULTS</b>Follow-up visits were successfully performed on 95 males (95%) of the IVD group and 44 (88%) of the NSV group. Pregnancy was not found in any of the cases. Spermatozoa (> or = 5 x 10(6)/ml) were not detected in 87 cases (91.58%) in the IVD group and in 44 cases (95.45%) in the NSV group, with no significant differences between the two groups (P > 0.05). The rate of postoperative complications in the IVD group (11.58%) showed no significant difference from that of the NSV group (4.55%) (P > 0.05).</p><p><b>CONCLUSION</b>IVD is as effective and safe as NSV for male contraception.</p>

Effect of qihuang decoction on mRNA expressions of Bcl-2, Bax, and Caspase-3, 9 in intestinal mucosa epithelium of ischemia/reperfusion injured rats / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To observe the effect of Qihuang Decoction (QHD) on mRNA expression of apoptosis genes Bcl-2, Bax, and signal transduction molecules Caspase-3, 9 in intestinal mucosa epithelium of ischemia/ reperfusion (I/R) injured rats.</p><p><b>METHODS</b>Forty Wistar rats were randomized equally into 4 groups, the control group, the model group, the glutamine group, and the QHD group. Rats in the latter two groups were gastric infused with glutamine and QHD respectively for 3 days, but saline was infused instead to rats in the control group and model group. After then, except those in the control group intervened only by sham operation, rats were made into I/R injured model by 45 min occlusion of superior mesenteric artery followed by 1 h reperfusion. Immediately after modeling, mRNA expressions of Bcl-2, Bax, Caspase-3, and Caspase-9 in intestinal mucosa epithelium of rats were detected by reverse transcription-polymerase chain reaction (RT-PCR).</p><p><b>RESULTS</b>Compared with the control group, mRNA expressions of Bcl-2, Bax, Caspase-3 and Caspase-9 were higher in the other three groups (P < 0.05). Compared with the model group, Bcl-2 mRNA expression was higher, while the expressions of the other three indices were lower in both the glutamine group and the QHD group (P < 0.05); and comparisons between the glutamine group and the QHD group showed a more depressed Bax mRNA expression (0.281 +/- 0.087 vs 0.350 +/- 0.053) and higher Bcl-2/Bax ratio (1.648 vs 1. 374) in the QHD group.</p><p><b>CONCLUSIONS</b>QHD can reduce the I/R injury in the intestinal mucosa epithelium by inhibiting the cell apoptosis. The mechanism may be correlated with increased Bcl-2 mRNA expressions and decreased mRNA expressions of Bax, Caspase-3 and Caspase-9.</p>

Effect of qihuang decoction on epithelial cell apoptosis of ischemia/reperfusion injured intestinal mucosa in rat / 中国中西医结合杂志

<p><b>OBJECTIVE</b>To observe the effect of Qihuang Decoction (QHD) on epithelial cell apoptosis of ischemia-reperfusion (I/R) injured intestinal mucosa in rat.</p><p><b>METHODS</b>The I/R injured intestinal mucosa rat model was established by clamping superior mesenteric artery (SMA) for 45 min and reperfusing for 60 min. The pathomorphological Changes and epithelial cell apoptosis in the injured intestinal mucosa were observed and compared among groups: the sham-operated group (A), the model group (B), the glutamine treated group (C) and the QHD treated group (D).</p><p><b>RESULTS</b>pathomorphological examination showed that in group A, the intestinal villus was intact; in group B, the intestinal subepithelial space were dilated, and showed evident cleavage between the epithelial top and the lamina propria with bare capillaries, bleeding and ulceration; in group C and D, the above-mentioned pathomorphological changes were alleviated to some extents, appeared only in part of the villa, and the alleviation was more significant in group D than in group C. Chiu's scoring showed that the lowest score (zero) presented in group A and the highest presented in group B; scores in group C and D was significantly lower than that in group B (P < 0.05), but showed insignificant difference between the two groups (P > 0.05). Epithelial cell apoptosis detection showed that the least apoptosis rate presented in group A, and the highest in the group B; while in the group C, it lied between group A and B (all P < 0.05), and showed no statistical significance to group D (P > 0.05), though appeared a lowering trend.</p><p><b>CONCLUSION</b>QHD could reduce the I/R injured intestinal epithelial mucosa, and its protective mechanism may be related to the inhibition on apoptosis of intestinal mucosal epithelial cells.</p>

Expressions and clinical implications of kruppel-like factor 6 and APC in human colorectal carcinoma / 中华胃肠外科杂志

<p><b>OBJECTIVE</b>To investigate the expressions and clinical implications of kruppel-like factor 6(KLF-6) and APC in human colorectal carcinoma.</p><p><b>METHODS</b>The expressions of KLF-6 and APC in tumor and normal tissues from 32 patients with colorectal carcinoma were investigated by RT-PCR and immunohistochemical technique.</p><p><b>RESULTS</b>The expression rates of KLF-6 and APC mRNA were 37.5% and 34.3% in tumor tissue, 96.9% and 93.8% respectively in normal tissues (both P< 0.05). The expression rates of KLF-6 and APC protein were 28.1% and 25.0% in colorectal carcinomas, 81.3% and 84.43% respectively in normal tissues (both P< 0.05). There was a significant correlation between the expressions of KLF-6 and APC in colorectal carcinomas (P < 0.05). The expressions of KLF-6 and APC were significantly correlated with tumor differentiation, depth of infiltration, lymph node metastasis and clinical stage (P< 0.05).</p><p><b>CONCLUSION</b>Down-regulations of KLF-6 and APC might play an important role in the carcinogenesis, development, metastasis of human colorectal carcinoma.</p>