Objective To investigate the effect of 5-hydroxytryptamine 1A (5-HT1A) receptor agonists to improve micturition function in rats with diabetes mellitus (DM).Methods Fourteen female SD rats with the weight of 250 to 275 g were used.Seven rats were in the DM model group with intraperitoneal injection streptozotocin (STZ,65 mg/kg).Rats in the control group and DM group were anesthetized with urethane (1.3 g/kg) 8 weeks later.A polyethylene (PE)-50 catheter were placed in the left jugular vein for intravenous drug administration.A PE-90 catheter was inserted into the bladder,with the other end connected to a syringe pump for continuous infusion of saline and a pressure transducer for intravesical pressure monitor.Dose-response curves for 8-OH-DPAT were followed by WAY-100635 test.The capacity,residual volume,micturition volume,and EUS-EMG were measured.Results Compared to normal control,DM rats had a higher bladder capacity,residual volume,and a lower voiding efficiency.With increasing dose of 8-OH-DPAT (0.003-1.000 mg/kg,i.v.),the micturition volume increased from (2.15±0.49) ml to (2.85±0.21) ml,the residual volume decreased from (3.40±0.74)ml to (1.82±0.48) ml and voiding efficiency changed from (39.0±9.3)％ to (61.6±6.9)％.Control rats showed little change in cystometic variable.During the micturition,there was a dose-dependent increased phasic EUS activity correlated with the improved voiding efficiency.WAY-100635 (0.300 mg/kg,i.v.) reversed the 8-OH-DPAT-induced changes.Conclusions Both the bladder voiding efficiency and the periodic EUS activity decrease in DM rats.5-HT1A receptor agonist could promote periodic EUS activity and improve voiding efficiency.

Objective To observe the clinical efficacy of auricular acupuncture plus acupoint injection at Zusanli (ST 36) in treating shoulder pain due to gynecologic laparoscopy.Method Totally 120 patients with shoulder pain due to gynecologic laparoscopy were randomized into a treatment group and a control group, 60 cases in each group. The treatment group was intervened by auricular acupuncture plus acupoint injection at Zusanli (ST 36), while the control group was by ordinary analgesics. The clinical efficacies were compared after 2 treatment courses.Result The Visual Analogue Scale (VAS) scores, Present Pain Intensity (PPI), and the item scores of the Short-Form (36) Health Survey (SF-36) were significantly changed in both groups after treatment (P<0.01,P<0.05). There were no significant differences in comparing the VAS score, PPI, and the item scores of SF-36 between the two groups (P>0.05). The total effective rate was 95.0% in the treatment group versus 75.0% in the control group, and the difference was statistically significant (P<0.05).Conclusion Auricular acupuncture plus acupoint injection at Zusanli (ST 36) is effective in treating shoulder pain due to gynecologic laparoscopy, and it can effectively reduce the occurrence of complications.

Objective To explore the therapeutic effects of radical mastectomy(RM) and extended radical mastectomy(ERM) for stage II, III breast cancer. Methods The 5 year and 10 year survival rates in 691 patients with stage II, III breast cancer treated either by extended radical mastectomy or radical mastectomy were retrospectively analyzed . Out of the 691 patients, 206 stage II cases and 193 stage III cases underwent RM, and 142 stage II and 150 stage III cases received ERM. Results In patients with stage II, III breast cancer located in the central portion or medial portion of mammary, the 5 year survival rates and in stage III patients 10 year survival rate after ERM were significantly higher than those after RM (P

Objective To investigate the effect of 5-hydroxytryptamine serotonin receptor-1A (5-HT1 A) agonists on micturition dysfunction in rats with chronic spinal cord injury (SCI).Methods Female SD rats weighing 175 -200 g were used.Seven of the rats were modified for a spinal cord injury model (transsection at T10).Eight weeks later,control rats and SCI rats were tested.Rats were anesthetized with urethane ( 1.3 g/kg ).A polyethylene (PE) -50 catheter was placed in the left jugular vein for intravenous drug administration.A PE-90 catheter was inserted through the bladder dome,and the other end of the bladder catheter was connected to a syringe pump for continuous infusion of saline and to a pressure transducer for intravesical pressure monitor.Dose-response curves for 8-OH-DPAT were followed by the WAY-100635 test.The capacity,residual volume,micturition volume,and EUS-EMG were measured.Results With an increasing dose of 8-OH-DPAT,the capacity of the bladder decreased from 33.2 ± 8.3 ml to 22.8 ± 2.4 ml.The micturition volume was increased from 0.14 ± 0.08 ml to 0.38 ± 0.09 ml.The residual volume decreased from 3.68 ± 1.36 ml to 1.84 ± 0.21 ml,and peak intravesical pressure changed from 27.1 ± 3.6 mm Hg to 22.8 ± 2.4 mm Hg.Control rats showed little significant change in the cystometric variable.Effects of 8-OH-DPAT were reversed by WAY-100635.That 8-OH-DPAT induced phasic relaxation occured in spinal cord-injured rats but the control group showed no significant change.ConclusionsThe 5-HTIA/7 receptor agonist 8-OH-DPAT may induce periodic EUS relaxation during voiding in urethane-anesthetized chronic spinal cordinjured rats.And this could result in an increase in micturition volume,a decrease in bladder capacity,and thus an increase in voiding efficiency.

In resent years,brain parenchyma and cerebrovascular sonography have received considerable attention.Monitoring of cerebral vessels and their blood flow velocities and pulsation indexes may reflect the intracranial vascular lesions.However,there are a few studies about transcranial color-code duplex sonography (TCCD) in the monitoring of space-occupying stroke.This technology has the non-invasive,convenient,and economical advantages,and can timely provide clinical information.Using TCCD to monitor pace-occupying stroke may play a positive role in prevention of the diseases and prognosis.

Objective:To develop an enzyme immunoassay for the detection of Osteogenic Growth Peptide in serum for clinical investigation.Methods:Two kinds of competitive Enzyme linked immununosorbent assay were employed,based on sensitivity and shape of dose-reaction curve,the most suitable testing pattern was selected for further application.Results:Purified antibody was better than salting-out antibody in competitive Enzyme linked immununosorbent assay in terms of standard curve.Modified competitive Enzyme linked immununosorbent assay was better than competitive Enzyme linked immununosorbent assay in sensitivity.Conclusion:Modified competitive Enzyme linked immununosorbent assay for Osteogenic Growth Peptide is sensitive enough for clinical investigation.

BACKGROUND:EdU is a new nuclear marker, and currently, it is rarely reported.
OBJECTIVE: To determine the optimal concentration of EdU to label human umbilical cord mesenchymal stem cels.
METHODS: Human umbilical cord mesenchymal stem cels were isolated, purified and subcultured. Cel morphology and growth were observed under inverted microscope. Flow cytometry was used to identify cel surface markers, as wel as adipogenic identification. EdU at concentrations of 5, 10, 20, 50, 100 μmol/L was used to label human umbilical cord mesenchymal stem cels for 24 hours. The optimal concentration that resulted in the highest labeling efficiency was selected, and then cel proliferation curve was drawn.
RESULTS AND CONCLUSION:Under the inverted microscope, cels grew adherently in a long spindle shape, and EdU-labeled cels had the same morphology. Flow cytometry showed that cels were positive for CD44, and had adipogenic differentiation ability. When the concentration of EdU was 5 and 10 μmol/L, the labeling efficiency was the highest, indicating that 5 and 10 μmol/L are the optimal concentrations of EdU to label human umbilical cord mesenchymal stem cels.

Objective: To investigate the influence and significance of DHA on expression of angiogenesis-related genes in SGC7901 cells. Methods:SGC7901 were treated with DHA (5, 10, 20, 40, and 80μmol/l) for different times (24, 48, and 72 h), and the growth inhibition was detected by MTT. The expression of vascular endothelial growth factor (VEGF-C), cyclooxygenase-2 (COX-2) vascular cell adhesion molecule-1 (VCAM-1), and PTEN mRNA were detected by fluorescence-based quantitative poly-merase chain reaction (qRT-PCR). Their corresponding protein levels were tested by Western blot. Results:DHA significantly inhibited the growth of SGC7901 cells in a dose-and time-dependent manner (P<0.05). The expression of the angiogenesis-related genes signifi-cantly changed, as shown by RT-PCR and Western blot analyses. Compared with the control group, the expressions of VEGF-C, COX-2, and VCAM-1 were down-regulated, whereas the expressions of PTEN were up-regulated, after DHA treatment (P<0.05). Con-clusion:DHA inhibits cell growth in gastric cancer SGC7901 cells. The effect may be due to its reduction of VEGF-C, COX-2, and VCAM-1 gene expression, as well as its promotion of PTEN expression in gastric cancer cells.

Objective To investigate the effects of dihydroartemisinin (DHA) on the proliferation of gastric cancer cell line SGC7901 and its mechanism.Methods SGC7901 cells were divided into the DHA group and the control group.SGC7901 cells in the DHA group were treated with DHA of different concentrations (6.25,12.50,25.00,50.00,100.00 μmol/L),SGC7901 cells in the control group were cultured in the 0.1％ DMSO medium.The proliferation of SGC7901 cells was detected by the MTF method at different time points (24,48,72 hours).Cell cycles of SGC7901 in the DHA group were observed by flow cytometry at 24 hours after treatment.The expressions of Cyclin A,Cyclin D1,Cyclin E,Cyclin-dependent kinase 4 (CDK4) and P16 were detected by Western blot after treating SGC7901 with DHA at concentration of 100μmol/L for 24 hours.The interaction between CDK4 with Cyclin D1 or P16 was examined using the co-immunoprecipitation assay.All data were analyzed using the one-way analysis of variance or the t test.Results The proliferation of SGC7901 cells was significantly inhibited after the treatment with DHA at different concentrations (6.25,12.50,25.00,50.00,100.00 μmol/L) for 24,48 and 72 hours (F =78.66,235.37,93.75,P ＜ 0.05).Compared with control group,the number of SCG7901 cells in the G0/G1 phase in the DHA group was significantly increased (F =18.42,P ＜0.05).After treating SGC7901 cells with DHA for 24 hours,the protein expressions of Cyclin D1 and CDK4 were 0.67 ± 0.15 and 0.64 ± 0.18 in the control group,which were significantly higher than 0.17 ± 0.05and 0.24 ± 0.06 in the DHA group (t =7.746,5.164,P ＜ 0.05).The protein expressions of Cyclin E were 0.42 ± 0.06 in the control group and 0.35 ± 0.06 in the DHA group,with no significant difference (t =2.021,P ＞ 0.05).The protein expressions of Cyclin A were 0.35 ± 0.09 in the control group and 0.38 ± 0.08 in the DHA group,with no significant difference between the 2 groups (t =1.266,P ＞ 0.05).The protein expressions of P16 were 0.29 ± 0.07 in the control group and 0.54 ± 0.12 in the DHA group,with significant difference between the 2 groups (t =4.408,P ＜ 0.05).The results of co-immunoprecipitation assay showed that DHA decreased the interaction between CDK4 and Cyclin D1,and increased the interaction between CDK4 and P16.Conclusion DHA induces SGC7901 cells arrested in G0/G1 phase,and the effect may be related with its downregulation of Cyclin D1 and CDK4,up-regulation of P16,decreasing the interaction between CDK4 and Cyclin D1,and increasing the interaction between CDK4 and P16.

Objective To examine the feasibility of using the serous-lined tunnel technique for orthotopic neobladder, continent cutaneous diversion and ureteral replacement by the intestinal segment. Methods In 31 patients of orthotopic ileal neobladder, the serous-lined tunnel techniques were used for antirefluxing ureteral implantation: In 13 patients of continent ileal pouch, the techniques were adopted for continent-valve construction and for uretersl implantation: In 3 patients (with lower ureteric cancer), the same techniques were applied for constructing the ileal ureters with a proximal antirefluxing mechanism. Results With a mean follow-up of 27 mon( 12-132 mon), 88 ureters implanted into ileal neobladders or continent pouches functioned well with neither obstruction nor reflux: 12 in 13 continent valves functioned well with no incontinence. 3 patients with ileal ureters showed no ileo-ureteric reflux and had reduced hydronephrosis comparing to that of before surgery.Conclusions Ureteral reimplantation and continent valve formation achieved by adopting the serouslined tunnel technique provide satisfactory results. The versatility of the technique is obvious in the present experience and the creative application of the serous-lined tunnel technique should be possible in urinary reconstruction.