Study on the value of Helieobacter pylori (H. pylori) stool antigen immunocard STAT in the diagnosis of H. pylori infection: a meta-analysis / 中华流行病学杂志

<p><b>OBJECTIVE</b>To evaluate the accuracy of the Helicobacter pylori (H. pylori) stool antigen (HpSA) test and ImmunoCard STAT HpSA in the primary diagnosis of H. pylori infection.</p><p><b>METHODS</b>We searched Medline (1966-2007.4), EMbase (1985-2007.4), Chinese Journals Full-text Database (CJFD) (1994-2007) etc. to identify Clinical Trials of ImmunoCard STAT HpSA for the primary diagnosis of H. pylori infection. Meta-analysis was conducted using the method recommended by The Cochrane Collaboration Center.</p><p><b>RESULTS</b>Eleven trials were included with pooled sensitivity, pooled specificity as 0.93 (95% CI: 0.91-0.94), 0.93 (95% CI: 0.90- 0.95), respectively. Pooled positive likelihood ratio and pooled negative likelihood ratio were 12.01 (95% CI: 8.90-16.19), 0.08 (95% CI: 0.07-0.11), respectively with the pooled diagnostic odds ratio as 160.14(95% CI :100.43-255.34). The area under the summary receiver operating characteristic (SROC) was 0.974 +/- 0.005.</p><p><b>CONCLUSION</b>ImmunoCard STAT HpSA appeared to be an accurate non-invasive method for the initial diagnosis of H. pylori infection.</p>

The role of cyclic AMP in repair of hemisection of spinal cord in rats models / 中华外科杂志

<p><b>OBJECTIVE</b>To study the role of cAMP in repair of hemisection of spinal cord in rats models.</p><p><b>METHODS</b>Rats models of spinal cord hemisection were made and cAMP were injected once in the motor cortex or continuously input in the lesion area or in the subarachnoid cistern for 3 d. NFs, GFAP, CSTs and spinal axons in the lesion areas were observed by immunohistochemistry and hind limb movements were evaluated in BBB scales.</p><p><b>RESULTS</b>Many regenerated axons were presented in the lesion areas in cAMP groups though no continuous long regenerated axons traversed the lesion area when cAMP was input in the motor cortex or in the local lesion area. In control group, no regenerated axon were presented in the lesion areas. When cAMP was input in the subarachnoid cistern, only few-labelled CST axon survived and presented in the lesion area comparing no labelled CST axon presented in the lesion area. More NFs and less GFAP were distributed and extended in the lesion area in the cAMP groups. All the rats restored to normally walk 4-5 weeks after operations and no significance existed between cAMP groups and control groups comparing the BBB scales of hind limb movements.</p><p><b>CONCLUSION</b>cAMP injected in the brain cortex or continuously input in the lesion area can induce the axonal regeneration.</p>