Objective To investigate the methylation status of the CpG island of tumor suppressor gene PCDH 8 and its clinical significance in bladder cancer tissues .Methods 79 cases of primary bladder transitional cell carcinoma and 20 cases of normal blad-der mucosa tissue were collected ,and then the promoter methylation status of PCDH8 gene was examined by methylation specific PCR (MSP) ,and correlated with clinical pathological data for statistical analysis .Results We found that no PCDH8 gene methyla-tion was detected in 20 normal bladder mucous tissues ,while PCDH8 promoter methylation was found in 44 cases of total 79 prima-ry bladder transitional cell carcinoma tissues ,the methylation rate was 55 .7% ,and the difference was statistical significant between normal bladder mucous group and bladder cancer group (P<0 .01) .The promoter methylation of PCDH8 gene in bladder transi-tional cell carcinoma tissues did not correlate with patient′s age ,gender ,tumor number (P>0 .05) ,the methylation rate of PCDH8 gene in tumors whose diameter more than 3 cm was 72 .7% ,while the methylation rate of PCDH8 gene in tumors whose diameter less than 3 cm was 43 .5% ,and the difference was significant(P< 0 .05) .The methylation rate of PCDH8 gene in the papillary tumor was 48 .2% ,while the methylation rate of PCDH8 gene in the unpapillary tumor was 73 .9% ,and the difference was signifi-cant(P<0 .05) .The methylation rate of PCDH8 gene in recurrent tumors was 71 .1% ,while the methylation rate of PCDH8 gene in primary tumors was 35 .3% ,and the difference was significant(P<0 .05) .The methylation rate of PCDH8 gene in tumors with G1 ,G2 phase was 43 .4% ,while the methylation rate of PCDH8 gene in tumors with G3 was 80 .8% ,and the difference was signifi-cant(P<0 .05) .The methylation rate of PCDH8 gene in the tumors with Ta T1 phase was 43 .7% ,while the methylation rate of PCDH8 gene in tumors with T2 T4 was 74 .2% ,and the difference was significant(P<0 .05) .Our result suggested that PCDH8 gene methylation was associated with tumor growth ,morphology ,recurrence ,poor differentiation and tumor invasion (P<0 .05) . Conclusion The promoter methylation of tumor suppressor gene PCDH8 is closely correlated with the occurrence and development of primary bladder transitional cell carcinoma .The promoter methylation of PCDH8 gene could be used as molecular markers of ear-ly diagnosis ,monitoring and prognosis biomarker in bladder cancer .

Objective To determine the content of rutin in fruits,stems,and leaves of Sambucus williamsii Hance,and provide an essential reference for the exploitation and utilization of the resources. Methods The content of rutin was analyzed on an Agilent ZORBAX Eclispse XDB C18 column(150 mmí4. 6 mm,5 μm). The mobile phase was methanol-0. 1%phosphoric acid (4555),the column temperature was set at 25 ℃,the flow rate was 0. 8 mL·min-1,and the detection wavelength was set at 360 nm. Results The linear range of rutin was 0. 105-0. 525 μg (r=0. 999 6),the average recovery was 97. 86%,and RSD was 0. 49%. The content of rutin in stems, leaves, and fruits of Sambucus williamsii Hance was 0. 171, 0. 522, and 0. 165 mg·g-1 ,respectively. Conclusion The stems,leaves and fruits of Sambucus williamsii Hance all contain rutin,but at a significant different content level. The leaves contain the highest level of rutin.

OBJECTIVE:To establish a method for the 5 main components (original syringin,chlorogenic acid,eleutheroside E,isofraxidin and quercetin-3-rhamnoside) in the fruits and roots of wild Acanthopanax senticosus. METHODS:UPLC was per-formed on the column of Waters ACQUITY UPLC HSS T3 with mobile phase of acetonitrile-0.3% phosphoric acid (gradient elu-tion)at a flow rate of 0.2 ml/min. Detection wavelength was 300 nm,column temperature was 30 ℃,and injection volume was 10μl. RESULTS:The linear range was 24.56-184.2 μg/ml for syringin(r=0.9993),18.454-138.405 μg/ml for chlorogenic acid(r=0.9993),8.416-63.12 μg/ml for eleutheroside E (r=0.9997),3.286-24.645 μg/ml for isofraxidin (r=0.9993) and 2.522-18.915μg/ml for quercetin-3-rhamnoside(r=0.9998);RSDs of precision,stability and reproducibility tests were lower than 1%;recover-ies were 99.14%-100.50%(RSD=0.48%,n=6)for syringing in the fruits of A. senticosus、99.03%-100.45%(RSD=0.50%,n=6) for chlorogenic acid in the fruits of A. senticosus、99.22%-100.44%(RSD=0.44%,n=6)for eleutheroside E in the fruits of A. sen-ticosus、99.80%-100.80%(RDS=0.44%,n=6)for isofraxidin in the fruits of A. senticosus、99.76%-101.10%(RSD=0.51%,n=6) for quercetin-3-rhamnoside in the fruits of A. senticosus;99.21%-101.20%(RSD=0.73%,n=6)for syringing in the root of A. senti-cosus、99.81%-101.20%(RSD=0.52%,n=6)for chlorogenic acid in the root of A. senticosus、100.00%-101.50%(RSD=0.62%, n=6)for eleutheroside E in the root of A. senticosus、99.22%-100.40%(RSD=0.47%,n=6)for isofraxidin in the root of A. senti-cosus. CONCLUSIONS:The method is simple and stable with good reproducibility,and can be used for the simultaneous determi-nation of original syringin,chlorogenic acid,eleutheroside E,isofraxidin and quercetin-3-rhamnoside in the fruits and root of wild A. senticosus.

Objective:To observe the anti-carcinoma and immuno-regulatory effects of shikonin derivatives.Methods:A water-soluble preparation of shikonin derivatives was prepared (designated as LE)and given by lavage (2.5～10 mg/kg daily for 10 days) to the mice inoculated with either HepA22 or S180 sarcoma. Their survival duration and the in situ tumor mass were observed. Thymus and spleen indexes of the mice were measured. The parameters for immuno-functions were detected by the routine activity assays, which included NK cytotoxicity, ConA-induced lymphocyte transformation and IL-2 production by the splenocytes of the mice. Thymic and splenic morphology of the experimental animals were microscopically examined with HE staining.Results:Both thymic and splenic indexes in the tumor-bearing mice diminished extremely compared to those of the normal control, and the immunological functions analyzed were also found obviously lowered when loaded with the transplantable carcinomas. Under light microscopy, it was surprisingly exhibited that thymus cortex was almost disappeared in the organs of tumor-bearing mice, and the germinal centers of their spleens were visibly shrunk. LE inhibited propagation of the inoculated tumors and at the same time, it amended the immunosuppresive impacts by tumor-bearing, including both structures of immune organs and the bioactivities of spleen cells.Conclusion:LE can reverse the immune damages mediated by carcinomas.

Objective To explore the effects of physiological deep-sea water(PDSW) on hyperthermal tolerance of Kunming (KM ) mice in the 45 .0 ℃ environment .Methods Deep-sea water from the south Chinese sea was processed ,and the metallic ele-ments dissolved in the DSW were analysed .The mice were randomly divided into 2 groups :the control group received tap water ;the experimental group treated with PDSW for 15 d .And then the mice were fed in the 45 .0 ℃ conditions .The survival time and histo-morphometric analyses of the brain ,lung ,heart ,liver and kidney were investigated .Results The survival time in PDSW-fed group was significantly longer than that of the control group (P< 0 .05) .Moreover ,histomorphometric analyses showed that PDSW could protect the brain ,lung ,heart ,liver and kidney of KM mice from the 45 .0 ℃ conditions .The results of western blot revealed that ex-pression of HSP72 of liver tissues for PDSW-fed group substantially increased ,when compared with the control mice(P< 0 .05) . Conclusion PDSW could improve hyperthermal tolerance of KM mice ,which maybe in the relation with expression of HSP72 pro-moted by PDSW .

OBJECTIVE:To investigate the inhibitory effect of Baixuan xiatare tablet on the model mouse with allergic contact dermatitis (ACD). METHODS:60 BALB/c mice were equally randomized into normal control (isometric solvent) group,model (isometric solvent)group,ebastine(positive control,0.003 g/kg)group and the groups of high,middle and low doses of Baixuan xiatare tablet(2.0,1.0 and 0.5 g/kg). The mice were given drugs,ig,once daily for 14 consecutive days. 0.5% 2,4-dinitrofluoro-benzene(DNFB)acetone olive oil solution was applied,for sensitization,on the prepared mouse’s skins one and two days before administration,and 0.2% DNFB acetone olive oil solution on their left ears 16 days thereafter to establish mouse models of ACD. At 48 h after successful establishment of the models,the thickness of the mouse’s left ear margin was measured and the difference value and swelling degree were calculated;flow cytometer was used to determine the levels of T lymphocyte subsets CD4+ and CD8+ in mouse blood and calculate the ratio of CD4+ to CD8+;the levels of interleukin 4(IL-4)and IL-6 in mouse serum were de-termined. RESULTS:Compared with normal control group,those in the model group had higher difference value of ear margin and swelling degree,lower level of CD4+ in blood and ratio of CD4+ to CD8+,and higher content of IL-6 in serum. There was statisti-cally difference (P<0.01). Compared with model group,those in the groups of high,middle and low doses of Baixuan xiatare tablet had lower degree of left ear swelling and higher level of CD4+ in blood;those in the groups of high and middle doses thereof had lower difference value of left ear margin and level of IL-6 in serum;and those in the group of high dose thereof had higher lev-el of CD8+ in blood. There was statistically significance(P<0.01 or P<0.05). CONCLUSIONS:Baixuan xiatare tablet has inhibi-tory effect to some degree on the mouse model with ACD by a mechanism which may be related to the balance of subsets CD4+and CD8+in blood and the reduction of IL-6 in serum.

Objective:To explore whether Internet continuous nursing can reduce anxiety and depression, chemotherapy-induced peripheral neuropathy, improve treatment compliance and reduce adverse reactions in patients with colorectal cancer undergoing oxaliplatin chemotherapy.Methods:A total of 69 patients with colorectal cancer in the Department of oncology, General Hospital of Northern War Zone from July 2019 to June 2020 were selected and divided into the observation group (34 cases) and the control group (35 cases) by random digits table method. The control group was given conventional nursing mode, and the observation group was given Internet continuity nursing mode. All patients were followed up to 3 months after the end of chemotherapy. The basic information, treatment anxiety and depression, chemotherapy-induced peripheral neuropathy, compliance, incidence of adverse reactions and patient satisfaction of the two groups were compared.Results:There was no significant difference in the anxiety and depression before and after chemotherapy, chemotherapy-induced peripheral neuropathy after chemotherapy( P>0.05). After 3 months of chemotherapy, the anxiety and depression and chemotherapy-induced peripheral neuropathy were (20. 97± 3.46),(14.27 ± 1.14) points in the observation group, and (24. 99 ± 1.11),(18.16 ± 2.55) points in the control group, the differences were statistically significant ( t values were 3.80, 5.09, P<0.05). In the control group, there were 19 cases of regular review, 20 cases of persistent chemotherapy, 21 cases of disease awareness, 21 cases of scientific diet, 19 cases of psychological compliance and 19 cases of self-protection. In the observation group, there were 28 cases of regular review, 29 cases of persistent chemotherapy, 30 cases of disease awareness, 28 cases of scientific diet, 30 cases of psychological compliance and 28 cases of self-protection. The treatment compliance in the observation group were significantly higher than those in the control group (χ 2 values were 4.186-9.657, P<0.05). In the control group, there were 7 cases of peripheral neurotoxicity, 2 cases of acute laryngopharyngeal paresthesia, 18 cases of gastrointestinal reaction and 4 cases of hematotoxicity. Fourteen cases of gastrointestinal reaction in the observation group. The incidence of adverse reactions in the observation group was lower than that in the control group, and the difference was statistically significant ( χ2 value was 8.26, P<0.05). In the control group, 6 were very satisfied, 27 were satisfied and 2 were good.The observation group was very satisfied and satisfied with 16 people and 18 people. The satisfaction in the observation group was higher than that in the control group, and the difference was statistically significant ( Z value was 1.853, P<0.05). Conclusions:Internet continuous nursing can effectively reduce the anxiety and depression of patients and chemotherapy-induced peripheral neuropathy, improve the treatment compliance of patients, reduce the adverse reactions after medication, and improve the quality of life of patients, which is worthy of application and promotion.

OBJECTIVE： To optimize the formulation of Diosmin gel and to investigate its in vitro release property. METHODS： Diosmin gel were prepared by using Carbomer 940 as matrix. Using accumulative release rate as index， with the amount of Carbomer 940， ethanol， acetone and pH as factors， L9（34） orthogonal test was conducted. The formulation of Diosmin gel was optimized and validated. Using Diosmin ointment as reference， dialysis bag diffusion method was used to investigate in vitro release property of Diosmin gel prepared by optimal formulation. RESULTS： The optimal formulation of Diosmin gel included Carbomer 940 1.5 g， ethanol 15 mL， glycerol 8 g， pH 6. The gel prepared with optimal formulation was sticky brown-yellow semi solid， and had good coating and spreading properties. The average accumulative release rate （2 h） was （12.67±0.12）％. Results of drug release test showed that Diosmin gel released rapidly within 12 h， then gradually slowed down. The accumulative release rates were （71.93±0.42）％ （12 h） and （80.47±0.54）％ （24 h）， drug release of which were in line with Higuchi equation. Diosmin ointment was released slowly. The accumulative release rates were （41.74±0.18）％ （12 h） and （62.63±0.59）％ （24 h）. Drug release of it were in line with first-order equation. CONCLUSIONS： The formulation of Diosmin gel is optimized successfully. Prepared Diosmin gel has good drug release property.

Background::Carotid intima-media thickness (IMT) and diameter, stiffness, and wave reflections, are independent and important clinical biomarkers and risk predictors for cardiovascular diseases. The purpose of the present study was to establish nationwide reference values of carotid properties for healthy Chinese adults and to explore potential clinical determinants.Methods::A total of 3053 healthy Han Chinese adults (1922 women) aged 18-79 years were enrolled at 28 collaborating tertiary centers throughout China between April 2021 and July 2022. The real-time tracking of common carotid artery walls was achieved by the radio frequency (RF) ultrasound system. The IMT, diameter, compliance coefficient, β stiffness, local pulse wave velocity (PWV), local systolic blood pressure, augmented pressure (AP), and augmentation index (AIx) were then automatically measured and reported. Data were stratified by age groups and sex. The relationships between age and carotid property parameters were analyzed by Jonckheere-Terpstra test and simple linear regressions. The major clinical determinants of carotid properties were identified by Pearson’s correlation, multiple linear regression, and analyses of covariance.Results::All the parameters of carotid properties demonstrated significantly age-related trajectories. Women showed thinner IMT, smaller carotid diameter, larger AP, and AIx than men. The β stiffness and PWV were significantly higher in men than women before forties, but the differences reversed after that. The increase rate of carotid IMT (5.5 μm/year in women and 5.8 μm/year in men) and diameter (0.03 mm/year in both men and women) were similar between men and women. For the stiffness and wave reflections, women showed significantly larger age-related variations than men as demonstrated by steeper regression slopes (all P for age by sex interaction <0.05). The blood pressures, body mass index (BMI), and triglyceride levels were identified as major clinical determinants of carotid properties with adjustment of age and sex. Conclusions::The age- and sex-specific reference values of carotid properties measured by RF ultrasound for healthy Chinese adults were established. The blood pressures, BMI, and triglyceride levels should be considered for clinical application of corresponding reference values.