This paper is aimed to study the differences of allelopathic effects of Panax notoginseng under different allelopathic chemicals resources and selection of appropriate rotation crops. The additive main effects and multiplicative interaction ( AMMI) model had been used to evaluate the stability of allelopathic effects of P. notoginseng on the varieties of corn, wheat and rice properly. The model could use not only to evaluate the stability of non-regional trial data but also explore the interaction between the rotation crop genotypes and donor substances more efficiently. Meanwhile, correspondence analysis can be used in the AMMI to evaluate genotype stability and donor substances. Ejingza No. 1 (g6) had stronger allelopathic effects with high stability, but Yunrui No. 1 (g9) which was appropriate rotation crop genotype, had weaker allelopathic effects with high stability. These findings will aid in choosing appropriate rotation crops and establishing proper rotation system.
Allelopathy ; Crops, Agricultural ; Panax notoginseng ; chemistry

Objective To compare the efficacy of tamsulosin and tolterodine for the adjunctive expulsive therapy in patients with lower ureteral stones.Methods A total of 160 patients with lower ureteral stones(4-10 mm)were included in the study.The patients were divided into 4 groups by block randomization.Group Ⅰ patients received tamsulosin 0.4 mg/d;group Ⅱpatients received tamsulosin 0.4 mg/d plus tolterodine 2 mg(twice a day);group Ⅲ patients received toherodine 2 mg(twice a day);and group Ⅳpatients served as controls.All patients were observed for 2 weeks.Remits The stone expulsion rate of group Ⅰ,Ⅱ,Ⅲ,Ⅳ was 76.9%(30/39),70.0%(28/40),46.2%(18/39)and 42.1%(16/38),respectively.The stone expulsion rate in group ⅠandⅡwas,higher than that in group Ⅲand Ⅳ(P＜0.05).The expulsion time of group Ⅰ,Ⅱ,Ⅲ,Ⅳ was(5.3±2.5),(6.4±2.2),(10.7±1.8),(12.8±3.4)d,respectively,with significant differences between group Ⅰ,Ⅱ andⅢ,Ⅳ,between groupⅢand Ⅳ(P＜0.05).Almost all of the patients tolerated the expulsive therapy and only 4 patients withdrew from treatment.No obvious side effect occurred.Conclusion The use of tamsulosin for the expulsion of lower ureteral stones is effective and safe;however,the use of tolteredine provides no additional advantages.

Objective To construct survivin-targeting siRNA-expressing plasmid.Methods DNA sequence correspond to siRNA targeting survivin was designed and synthesized,and cloned into plasmid pRNAT-U6.1/Neo to produce surviving-targeting plasmid.Two oligos in the template with cohesive BamHⅠ and HindⅢ sites were prepared and annealled to form the insert fragment for siRNA vector.The vector was cut with BamHⅠ and HindⅢ and ligated with the insert fragment using T4 ligase.The recombinant vector was confirmed by restriction digestion and DNA sequencing,and then was transfected into T24 cells with Lipofectamine TM2000 and the expression of survivin was detected by real-time quantitive PCR.Results DNA sequencing for the PCR product showed that the recombinant vector pRNAT-U6.1/Neo-survivin was successfully constructed without any base pair mutation.The plasmid pRNAT-U6.1/Neo-survivin could efficiently reduce the expression of survivin and confer G-418 resistance in T24 cells.Conclusion The siRNA-expressing plasmid which were successfully constructed and transfected into T24 cells in this study may facilitate the application of RNA interference technique,and lay foundation for further studies on the function of survivin.

OBJECTIVETo explore the clinical application value of Provider-Initiated HIV Testing and Counseling (PITC) by analyzing the positive rate of HIV tests for people in need of PITC and that of routine HIV tests.

METHODSWe retrospectively analyzed the demographic and epidemiologic data about the patients seeking PITC services or undergoing routine HIV tests in Nanjing Drum Tower Hospital between January and December 2013.

RESULTSThe positive rate of initial HIV screening was 1.98% in the PITC group and 0.24% in the routine test group, while that of confirmed HIV was 0. 40% in the former and 0.07% in the latter, both with statistically significant differences between the two groups (P < 0.01). The positive rate of HIV was markedly higher in males than in females, particularly in the PITC group.

CONCLUSIONPITC has a high clinical value in HIV detection for targeted subjects and therefore deserves general application in dermatology.

Counseling ; Dermatology ; Female ; HIV Seropositivity ; diagnosis ; epidemiology ; Humans ; Male ; Mass Screening ; methods ; Retrospective Studies ; Sex Factors

BACKGROUND: Studies have demonstrated that incidence rate of acute rejection in renal transplant recipients with pre-production of major histocompatibility complex class I chain-related gene A (MICA), including parts of autoantibody, before transplantation in body, is obviously greater than that of recipients with negative antibody. OBJECTIVE: To investigate effects of exogenous antigen on MICA expression in endothelial cells. METHODS: The endothelial cells were cultured with exogenous recombinant MICA protein (group M5, M10 and M25) and heat shock protein-70 (group H5, H10 and H25) with dosages of 5, 10 and 25 μg/L, respectively, for 48 hours. Same volume of phosphate buffer saline was added into the control groups. RESULTS AND CONCLUSION: At 48 hours after induction, the expressions of MICA mRNA and protein were increased significantly in each experimental group (M5, M10 and M25) than that of the control group with significant (P < 0.05). The expression of MICA mRNA and MICA protein of group M5 and group M10 were remarkably higher than group M25 (P < 0.05); however, there was no significant difference between group M5 and M10 (P > 0.05). The expression of MICA membrane protein in the group M10 was obviously greater than that of the group M5 and M25 (P < 0.05). The level of soluble MICA (sMICA) in experimental groups (M5, M10 and M25) was decreased obviously comparing with that of the control group. These differences had statistical significances (P < 0.05). But there was no significant difference among the experimental groups (P > 0.05). However, the expression of MICA gene and sMICA level did not change after heat shock protein-70 stimulation. The exogenous MICA antigen up-regulates the expression of MICA mRNA and protein, especially increases the expression of membrane protein on the cell surface significantly, but sMICA in supernatant was dramatically decreased.

Objective To detect the gene expression of PCA3 and PSA in peripheral blood and urine simultaneously to investigate whether PCA3 combining PSA gene could become new markers for diagnosis of Pca. Methods From June 2009 to December 2009,the initial urine after prostatic massage and the peripheral blood specimens were collected from 37 patients with PCa and 68 patients with BPH that were pathologically confirmed,g patients with urinary stone were used as normal control,the expression of PCA3 and PSA mRNA of mononuclear cells in urine sediments and peripheral blood were detected by fluorescence real-time quantitative PCR,with β-actin mRNA as internal control. Results The sensitivity and specificity of the expression of PCA3 mRNA in peripheral blood for diagnosis of prostate cancer were 48.6％ and 100％ respectively.ROC curve analysis was performed for the PCA3 score and the area under the ROC curve was 0.908.Using 64.6 as the cutoff,the sensitivity was 81.1％ and the specificity was 86.8％.In group with serum tPSA value ＜4 pg/L,the positive rate and negative rate of urinary PCA3 score for diagnosing prostate cancer were 80％ (4/5) and 89.4％ (20/22) respectively.In group with serum tPSA value 4 - 10 μg/L,the positive rate and negative rate of urinary PCA3 score were 66.7％ ( 2/3 ) and 84.2％(16/19) respectively.In group with serum tPSA value ＞ 10 μg/L,the positive rate and negative rate of urinary PCA3 score were 82.8％ (24/27) and 81.5％ (22/27) respectively.The sensitivity of simultaneous detection of PCA3 mRNA in peripheral blood and urinary PCA3 score was 86.5％. Conclusions The expression of PCA3 mRNA in peripheral blood was a specific marker for the diagnosis of PCa.The simultaneous detection of PCA3 mRNA in peripheral blood and urinary PCA3 score could increase the sensitivity for the diagnosis of PCa.

Objective To investigate voicing changes of adult patients with obstructive sleep apnea hypopnea syndrome (OSAHS) before and after H-uvulopalatopharyngoplasty (H-UPPP). Methods 56 adult OSAHS pa-tients and 40 healthy people were included in the study. Acoustic parameters and formant frequencies were measured for each patient before and after H- UPPP, and also for the control group. Results Acoustic parameters: each group demonstrated no differences in all the parameters except for normalized noised energy (NNE). NNE increased after H-UPPP. Formant frequency: F1, B1, F2, B2, F3 of OSAHS patients were significantly lower than normal control. There was no significant difference in the formant frequency before operation and one week after; however, F1 and F2 were lower than the normal control one week after surgery. One month after surgery, F1 and F2 were ob-viously higher than that obtained in one week. All the other parameters compared with normal controls showed no significant discrepancies. Conclusion Acoustic characteristics of adult OSAHS patients were different from healthy person. After H-UPPP, the vocal tracts of patients changed, thus causing improvement to the acoustic parameters and voicing qualities, especially at the formant frequency. After the surgery, the formant frequencies of the patients increased gradually to the range of healthy people.

Objective To explore the relationship of post-transplant major histocompatibility complex class I chain-related gene A(MICA)antibody status and renal allograft function in clinical stable phase.Methods Fifty-seven patients accepted renal allografts followed up for at least 6 months were detected with the levels and specialties of MICA antibodies by Flow PRATM beads.Simultaneously,their serum ereatinine levels were tested as well.The impact of MICA antibody status on renal allograft function was assessed.Results Among the 57 patients,38 cases showed no HLA and MICA antibody.11 cases had HLA antibodies but not MICA antibody,8 cases had MICA antibodies and 3 cases had both MICA and HLA antibodies.There were 5 patients with MICA019 antibodies.3 patients with MICA027 antibodies,2 patients with MICA018 antibodies,while 1 patient with MICA004 and MICA017 antibodies,respectively.There were 9 patients with antibody positive score higher than 6,accounting 75%(9/12).Except age,there was no significant difference between patients with positive and negative MICA antibodies in the aspects of blood transfusion history,CDC,and cold ischemia time(P＞0.05).The average ages were(32.5±7.9)years for MICA antibodypositive patients and were(43.0±1 0.4)years for MICA antibody-negative patients(P=0.008).MICA antibody-positive patients without HLA antibody had higher serum creatinine level[(117.20±12.30)μmol/L]than MICA and HLA antibody-negative patients[(89.40±28.95)μmol/L,P＜0.05].Conclusions The measurement of MICA antibodies has prognostic value in the assessment of patients without HLA antibodies after renal transplantation.MICA antibody positive has clear association with chronic renal allograft function decline.

It has been showed that there were obvious obstacle effects of Panax notoginseng replanting. Crop rotation was the main effective technique to overcome the obstacle. To find a reasonable crop rotation system for P. notoginseng, aqueous extracts from root, stem and leaf of P. notoginseng were analyzed for allelopathic effect on three maize varieties (which are often grown in regions where P. notoginseng grown). The main results were as follows: (1) Allelopathic effect of P. notoginseng stem and leaf extracts on the three other tested plants was stronger than that of root extracts; (2) Corn was more vulnerable to the effects of allelochemicals at seedling stage than at germination stage, and the corn root was more sensitive than aerial part to allelochemicals; (3) Lusan No. 3 and Yunrui No. 1 showed resistance to P. notoginseng allelopathy, with respective comprehensive sensitivity indexes (M3) of - 0.089 3 and -0.159 2, while Bainuo No. 1 is sensitive at M3 = -0.261 0. It then can be concluded that Lusan No. 3 and Yunrui No. 1 may be an alternative rotation plants for overcoming P. notoginseng continuous cropping obstacle.
Allelopathy ; Panax notoginseng ; chemistry ; growth & development ; Pheromones ; pharmacology ; Plant Extracts ; pharmacology ; Plant Leaves ; chemistry ; Plant Roots ; chemistry ; Plant Stems ; chemistry ; Zea mays ; drug effects ; growth & development

Objective To determine the incidence and risk factors of iatrogenic retinal breaks in eyes undergoing pars plana vit- rectomy for idiopathic macular pucker.Design Retrospective case series.Participant 88 consecutive vitrectomies performed on eyes with idiopathic macular pucker.Method Consecutive vitrectomies performed on eyes with idiopathic macular pucker at Beijing Tongren Eye Center between 2002 and 2006 were retrospectively reviewed.Cases with iatrogenic retinal breaks were recorded and analyzed. Main Outcome Measure Number and location of retinal breaks,and anatomic outcome after surgical managements.Result A total of 88 consecutive vitrectomies were included in the study.Of the 88 eyes,8 eyes had 14 iatrogenic retinal breaks detected,with an aver- age incidence of 9.1%.Peripheral retinal breaks(8.0%)were more common than posterior retinal breaks(1.1%).All peripheral retinal breaks occurred around the selerotomy sites(100%)and the quadrant of predominant hand was involved most commonly(62%).Most of the breaks(88%)were detected during the surgery.All eyes with iatrogenic retinal breaks obtained anatomic retinal reattachment (100%).Conclusion Despite improvements in instrumentation and surgical techniques,iatrogenic retinal break continues to be an im- portant complication of pars plana vitrectomy in eyes with idiopathic macular pucker.This complication tends to occur more commonly at peripheral retina and is mainly selerotomy-related.