Objective:To investigate microRNA-29b ( miR-29b) expression in cerebral cortex , spinal cord, fore limb muscle, and serum of SOD1-G93A amyotrophic lateral sclerosis ( ALS) mice, and to identify the biomarker and to assess diagnostic values for ALS .Methods:Cerebral cortex , spinal cord , fore limb muscle and serum from 16 SOD1-G93 A ALS mice and 16 wild-type mice were taken and then microRNA extracted , detecting the expression of miR-29 b by real-time quantitative polymerase chain re-action ( RT-qPCR ) .The diagnostic performance of miR-29b for ALS was estimated by the receiver operating characteristic ( ROC ) curve . Results: The results from the validation indicated that the differences in miR-29b between the cerebral cortex of SOD1-G93A ALS and the healthy control subjects were statistically significant (P=0.001).Meanwhile, the expressions 8, 12, and 16 weeks later were higher than those of the controls ( ALS vs.Control: 8 weeks, P=0.044; 12 weeks, P=0.018; 16 weeks, P=0.045).When the relative expression level of miR-29b was used to diagnose ALS in SOD1-G93A ALS mice, the area under the ROC (area under the curve, AUC) was 0.885, if the diagnostic threshold was set at 0.185 6, the sensitivity and specificity were 92.9%and 71.4%.Conclusion:MiR-29 b may act as medical monitoring indices of ALS in early time .

Objective To examine the expression of Noggin in CNS of the developing rat. Methods In situ hybridization histochemistry(ISHH) was performed using digoxigenin-labeled cRNA as probes. Results It was revealed that densely and deeply stained noggin positive cells were detected in cortex,hippocampus,cerebellum,and nucleus of hypothalamus and thalamus in embryonic day(E)16 rats.The number of noggin positive cells was increased in the thalamus and medulla oblongata at postnatal day(P)1-2,whereas decreased in the hippocampus and cortex.The number of noggin positive cells was decreased significantly in brain at 1 week postnatal(P1W),and began to increase at P2W,especially in the cortex and hippocamps.Strong positive signal can be detected in the frontal cortex,parietal cortex,cingulated cortex,hippocampus,olfactory and cerebellum at 1 month postnatal(P1M).The expression of noggin begins to decline at P3M,only sparse noggin positive cells can be seen in CNS at P18M.Furthermore,there is no noggin positive cells seen in the spinal cord of rats during development.Conclusion Our results indicated that noggin could play an important role in CNS development of rats.

Objective To study the mutation of papillomavirus type 16 (HPV16) E6 gene, and to compare with the result of other researchers. Methods DNA was extracted from cervical cancer tissue sam-pies, then HPV16 E6 genes were amplified and sequenced using the HPV16 E6 specific primers from cervi-cal cancer DNA samples. Results HPV16 E6 gene mutations at the position of nt178 were found in 18 case from 35 cervical cancer samples, the mutation rate was 51.43%, resulting in nucleotide change of Asp to Glu. E6 mutations are found at the position of nt442 in 4 cervical samples. E6 mutation was found in 1 to 2 case in other nucleotide. Conclusion High frequency mutations of E6 gene of HPV16 at the position of nt178, nt442 have been found in cervical cancer samples in Hubei, China. The role of E6 gene mutation in cervical cancer development should be studied further.

Objective To investigate changes in plasma levels of D-dimer in patients with prostate hyperplasia(BPH)complicat-ed with acute urinary retention(AUR),and to explore its clinical significance.Methods 102 cases of patients with prostate hyper-plasia complicated with acute urinary retention,treated in this hospital from July 2013 to December 2014,were selected and divided into the simple BPH group(56 cases)and BPH complicated with AUR(BPH+AUR)group.The plasma levels of D-dimer of these patients were detected and comparatively analysed.Results Compared with the simple BPH group,the plasma levels of D-dimer of patients in the BPH+AUR group was increased,had statistically significant difference.(P <0.01).Conclusion The plasma levels of D-dimer in patients with BPH complicated with AUR increase significantly,which indicates that patients are with secondary in-creased fibrinolytic activity.Measures should be taken to relieve urinary retention as soon as possible,so as to protect the vascular endothelial function of patients and reduce the incidence of complications.

Objective To investigate the effect of noggin on BrdU labeled cells in the adult rat hippocampus. Methods The expressions of noggin and bone morphogenetic protein 4 (BMP4) in rat hippocampus were detected using in situ hybridization histochemistry (ISHH) and reverse transcription polymerase chain reaction (RT PCR). By using antisense technique combined with bromodeoxyuridine!(BrdU) labeling, the effect of noggin on hippocampal neurogenesis in adult rats was explored. Results The number of noggin mRNA positive cells in the adult rat hippocampus decreased significantly after treatment with antisense noggin but no change was found in the number of BMP4 mRNA positive cells. In addition, the number of BrdU labeled cells decreased significantly in the adult rat hippocampus after treatment with antisense noggin, but the sense noggin had no such effect. Conclusion Noggin can promote proliferation of neural precursor cells in adult rat hippocampus.

Objective To observe the expression changes of noggin mRNA and BMP4 mRNA in the hippocampus and frontal cortex of rats at different stages. Methods The expressions of noggin mRNA and BMP4 mRNA were analyzed by the method of reverse transcriptase polymerase chain reaction (RT PCR).Results It was revealed that the level of noggin mRNA in the frontal cortex decreased significantly in P1W rats but high level of BMP4 mRNA was detected in P1M and P3M rats. The expressions of noggin mRNA and BMP4 mRNA in the hippocampus showed the opposite expression pattern. The peak of noggin mRNA expression in the hippocampus was found in E13 and E16 rats. The expression of noggin mRNA decreased gradually but that of BMP4 mRNA in hippocampus increased gradually during the developmental stage. The peak of the expression of BMP4 mRNA was found in P1M rats. Conclusion There are expressions of noggin mRNA and BMP4 mRNA in the frontal cortex and hippocampus in rats at different developmental stages. The expression level is closely correlated with the developmental age. This indicates that noggin and BMP4 play important roles in the development of rat frontal cortex and hippocampus.

Objective To investigate the effect of 5-fluorouracil (5-FU) combined with radiotherapy (RT) on the apoptosis of human cervical cancer HeLa cells.Methods The HeLa cells were divided into four groups treated with chemotherapy(ChT),RT,RT+ChT, and control groups.The non-cytotoxic concentration (48 h IC_(50)) of HeLa cells treated with 5-FU was determined by methyl thiazolyl tetrazolium (MTT) and the apoptosis rates of HeLa cells detected by flow cytometry with annexin V-FTTC and PI double labeling.The morphologic changes of the apoptosis cells were observed under fluorescence microsope.Results ChT,RT and RT+ChT treatment could induce the apoptosis of HeLa cells with the strong induction of the combined treatment (P＜0.05).Conclusion 5-FU combined with RT can obviously enhance the apoptosis of HeLa cells, which provides a reliable experimental evidence for clinical use of 5-FU combined with RT in the intervention of human cervical cancer.

Objective To investigate dynamic metabolism in vivo of Ginkgo Folium Tablet under the guidance of sequential metabolism thoughts. Methods In situ closed-loop in rats was carried out to study sequential metabolism of Ginkgo Folium Tablet through oral digestive system, namely to investigate and compare the intestinal flora metabolism, the gut wall metabolism and hepatic metabolism, combined with chromatographic fingerprint of blood samples. Results The analysis showed that 12 peaks in Ginkgo Folium Tablet were metabolized by intestinal flora, and 7 peaks generated through the gut wall. Most components of Ginkgo Folium Tablet were metabolized in liver, and 3 original medicine components were directly into the blood. Conclusion This study conducts a qualitative description of metabolism of Ginkgo Folium Tablet in different parts of the oral route, and provides references for the quality control, mechanism explanation and secondary development for Ginkgo Folium Tablet.

The effect of L-proline as a promoter on the condensation reaction of salicylaldehyde or its derivatives with ethyl acetoacetate in neutral ionic liquid [emim]BF4 was studied. All reactions were carried out under mild reaction conditions and achieved high yields. Moreover, the ionic liquid containing L-proline could be recycled and reused for several times without noticeably decreasing in productivity. The results show that the L-proline-[emim]BF4 system has a potential in contribution to the development of environmentally friendly and inexpensive processes in organic syntheses.
Coumarins ; chemical synthesis ; Ionic Liquids ; chemistry ; Proline ; chemistry

Objective To develop a scoring system to determine peptic ulcer risks and to evaluate its screening efficiency.Methods A total of 862 people who underwent gastroscopy for the first time ranging from 18 to 45 years old were enrolled in this study.They were divided into two cohorts with the method of simple random sampling,514 in the original cohort and 348 in the validation cohort.Information such as demographic characteristics,dietary intake,lifestyle,symptoms relating to peptic ulcer was obtained.A multivariable logistic regression method was used to determine independent predictors of peptic ulcer.Based on the logistic regression model,a scoring system was developed with a regression coefficient-based scoring method.Then the scoring system was internally and externally validated.Each value of calibration,discrimination and accuracy were computed and then compared with those of original cohort to assess its screening efficiency.Results Three variables (gender,smoking and melena) composed the scoring system with scores ranging from 0 to 4 points.It had good calibration (P =0.956) and discrimination (area under the ROC =0.70,95％CI:0.65-0.76).With 2.5 points as the screening cutoff value,the sensitivity,specificity,accuracy rate,positive predictive value,negative predictive value,positive likelihood ratio and negative likelihood ratio were 49.5％,82.2％,75.5％,41.6％,86.4％,2.78 and 0.61,respectively.In the validation cohort,the sensitivity,specificity,accuracy rate,positive predictive value,negative predictive value,positive likelihood ratio and negative likelihood ratio were 27.2％,92.7％,71.3％,64.6％,72.3％,3.89 and 0.79.The results above indicated that the screening efficiency of the scoring system in the original cohort was similar to that in the validation cohort.Conclusion The scoring system to determine peptic ulcer risks,containing gender,smoking and melena,has good screening efficiency and can be applied to predict the risks of peptic ulcer.