Objective:To approach the actions of survivin and COX-2 during the genesis and development in brain astrocytoma and whether they have dependablity each other.Methods:The expression of survivin and COX-2 was examined by immunohistochemistry SP and their interrelationship was analyzed.Results:The positive expressive rates of survivin in astrocytoma gradeⅠ,Ⅱ,Ⅲ and Ⅳsubgroups were shown in an increased tendency.The expression was weak positive in higher differentiation group,and the positive expressive rate of survivin was increased in the lower differentiation group.There was an significant difference between these two groups(?2=11.20,P

The various advantages of organic polymer monoliths, including relatively simple preparation processes, abundant monomer availability, and a wide application range of pH, have attracted the attention of chromatographers. Organic polymer monoliths prepared by traditional methods only have macropores and mesopores, and micropores of less than 50 nm are not commonly available. These typical monoliths are suitable for the separation of biological macromolecules such as proteins and nucleic acids, but their ability to separate small molecular compounds is poor. In recent years, researchers have successfully modified polymer monoliths to achieve uniform compact pore structures. In particular, microporous materials with pores of 50 nm or less that can provide a large enough surface area are the key to the separation of small molecules. In this review, preparation methods of polymer monoliths for high-per-formance liquid chromatography, including ultra-high cross-linking technology, post-surface modifica-tion, and the addition of nanomaterials, are discussed. Modified monolithic columns have been used successfully to separate small molecules with obvious improvements in column efficiency.

Objective:To evaluate the status quo and influencing factors of hyperlipidemia management in patients with contracted family doctor service in the community.Method:The baseline data and blood lipid testing results of 752 hyperlipidemia patients (334 males and 418 females) with contracted family doctor service in Yuetan Community Health Service Center from November?2019 to May 2020 were collected. The hyperlipidemic patients were managed by family doctors based on atherosclerotic cardiovascular diseases(ASCVD) riks assessment. The ASCVD risk levels and low-density lipoprotein cholesterol (LDL-C) compliance rate of patients with different general data were compared, and the influencing factors of LDL-C control failure were analyzed by logistic regression.Results:The ASCVD risk assessment showed that among 752 patients there were 172 cases of low risk(22.87%), 167 cases of moderate risk(22.21%),352 cases of high risk(46.81%) and 61 cases of extremely high risk(8.11%). A significant difference was detected in sex,rate of smoking,incidence of overweight or obesity among patients with different ASCVD risk levels ( P<0.05).The overall control rate of LDL-C was 48.8% (367/752), that for low, moderate, high and extremely high risk patients were 83.73% (144/172), 53.89% (90/167), 34.38% (121/352) and 19.67%(12/61), respectively. A significant difference was detected in sex(female: 52.87%, 221/418),age(aged over 80: 58.82%, 110/187), rate of smoking (non-smoking:52.40%, 327/624) and medication compliance (good compliance:52.87%,221/418) between LDL-C control and uncontrol groups (χ2=6.323,11.816,19.022,25.274; P<0.05). Multiple logistic regression analysis revealed that male gender ( OR=1.800,95% CI:1.325-2.419), smoking ( OR=2.630,95% CI:1.726-4.007) and poor medication compliance ( OR= 2.179, 95% CI: 1.581-3.003) were independent risk factors for uncontrolled LDL-C levels. Conclusion:Patients with hyperlipidemia have a relatively high risk of cardiovascular diseases, and their blood lipids are not well controlled. The management of blood lipid should be enhanced in patients with chronic diseases, particularly for male patients with smoking and poor medication compliance.

0.05). But there were significant differences between them and the stronger positive rate cases. There were significant differences between the positive and stronger positive rate of MTS 1 protein comparing normal gastric mucosa to small intestinal type(84.6%,61.5%), colonic type(85.7%, 50.0%) of IM and gastric carcinoma (83.0%,60.4%)( P

AIM To elucidate the effect of rhynchophylline(Rhy) on carotid sinus baroreceptor activity (CBA). METHODS By recording sinus nerve afferent discharge activity with isolated carotid sinus perfusion, parameters of CBA, such as peak slope (PS), peak integral value (PIV), threshold pressure (TP) and saturation pressure (SP) were examined. ①Rhy 10, 50, and 100 μmol·L-1, dissolved in K-H solution, was perfused into isolated carotid sinus, then the effects of Rhy on parameters of CBA were observed while intrasinus pressure was altered in a stepwise manner. ②NG-nitro-L-arginine methyl ester (L-NAME) 10 mmol·L-1, tetraethylammonium (TEA) 1 mmol·L-1 and Bay K8644 500 nmol·L-1 were perfused into isolated carotid sinus, and effects of them on the response of carotid baroreceptor to Rhy were observed. RESULTS ① By perfusing the isolated carotid sinus with Rhy 10 μmol·L-1, PS decreased from (19.2±0.3)% to (18.2±0.1)%·kPa-1and the PIV decreased from (219.3±3.3)% to (199.1±3.8)%, while TP and SP increased from (8.2±0.3) to (9.1±0.1)kPa and (21.5±0.1) to (22.1±0.1)kPa, respectively. By perfusing with Rhy 50 and 100 μmol·L-1, the changes in PS, TP and SP were in concentration-dependent manner, and this indicated inhibitory effect of Rhy on CBA. ②Pretreatment with L-NAME 100 μmol·L-1 did not affect inhibitory action of Rhy 50 μmol·L-1 on CBA. ③Pretreatment with TEA 1 mmol·L-1 had no effect on inhibitory effect of Rhy 50 μmol·L-1 on CBA. ④Pretreatment with Bay K8644 500 nmol·L-1 could mostly attenuate effect of Rhy 50 μmol·L-1 on CBA. CONCLUSION Rhy inhibits CBA via blocking calcium influx in baroreceptor nerve ending.

As a mono-sodium salt form of alendronic acid, alendronate sodium presents multi-level ionization for the dissociation of its four hydroxyl groups. The dissociation constants of alendronate sodium were determined in this work by studying the piecewise linear relationship between volume of titrant and pH value based on acid-base potentiometric titration reaction. The distribution curves of alendronate sodium were drawn according to the determined pKa values. There were 4 dissociation constants (pKa1=2.43, pKa2=7.55, pKa3=10.80, pKa4=11.99, respectively) of alendronate sodium, and 12 existing forms, of which 4 could be ignored, existing in different pH environments.

Objective:To determine the content of ginsenoside R g1 ,R e and Paeoniflorin by HPLC in Shenshao tablet.Methods: HPLC Symmetry C 18 column was used and CH 3CN H 3PO 4 (11∶89) as mobile phase. The flow rate was 0.8mL/min, the column temperature at 30 ?C and the detective wavelength 203nm and 230nm. Results:The content of ginsenoside R g1 ,R e, and paeoniflorin can be determined by HPLC. The linear concentration ranges of these compound were 0.960?g～4.800?g, 0.912?g～4.560?g,1.050?g～ 5.250 ?g. The average recoveries were 105.2%, 98.5% and 103.5%, respectively.Conclusion: This method is simple and accurate and can be used to determine the content of Shenshao Tablet.

Aim To investigate the effects of saponin of sea cucumber ( SSC ) on the blood pressure in obese mice. Methods C57BL/KsJ(db/db) mice were ran-domized into 3 groups ( 8 mice each ): model group, low-dose SSC group and high-dose SSC group. Normal C57BL/KsJ mice were used as control. The low and high SSC groups were fed on basal diets incorporated with 0. 02% and 0. 04% SSC. Different treatments were administered for 6 weeks and arterial pressure was measured in the third and sixth weeks. The abundance of renal ACE, ACE2 and REN mRNA was detected by real time PCR . Results Compared with control group, the blood pressure of model group mice was ob-viously raised ( P<0. 01 ) . Low-dose SSC group mice showed lower blood pressure than model group without statistically significant differences, and the blood pres-sure of high-dose SSC group mice was similar to that of control group and significantly lower than model group. ( P<0. 05 ) There were no remarkable differences a-bout ACE and REN mRNA among the groups, howev-er, ACE2 mRNA level was significantly increased in high-dose SSC group. Conclusion SSC plays a vital role in decreasing blood pressure, which probably re-lates to the regulating function of renin-angiotensin sys-tem( RAS) .

Objective To detect human papillomavirus(HPV)DNA in peripheral blood of patients with condyloma acuminata(CA).Methods Polymerase chain reaction(PCR)was used to amplify the HPV DNA in skin lesions and peripheral blood of30patients with CA,and20normal blood donors as controls.Re-striction endonucleases Rsa I and Pst I were used for HPV DNA typing.The PCR products from1patient who was HPV positive for both skin lesions and peripheral blood,were cloned and sequenced.Results HPV DNA was identified in all CA skin lesions.HPV DNA was identified in peripheral blood mononuclear cells(PBM-Cs)from8of30(26.7%)patients and in none of20control subjects(P

Objective To investigate the awareness,willingness,motivation,and influencing factors of outpatients for participating drug clinical trials,and provide references for decision-making of drug clinical trials.Methods An amnonymous survey was conducted in the departments of internal medicine,surgery,gynecology,and obstetrics of a randomly selected tertiary referral center,and the results were statistically analyzed.Results A total of 1 067 available questionnaires were received.The total awareness rate of clinical trials was 31.02％,which was closely correlated with age and the degree of education.40.86％ of respondents were willing to participate in drug clinical trials.And 55.28％ of them chose yes because of the willingness to contribute to the development of medical science.People having cognition on clinical trials had more willingness to participate in drug(OR:1.361,95 ％ CI:1.042-1.777).59.14％ of the respondents refused to participate in drug clinical trials,68.62％ of whom refusing to participate mainly worried about the safety of drugs.57.37％ of the respondents comfirmed that they might change their idea if experts were involved.41.33％ were willing to accept training about clinical trials.Conclusion Investigators'overall cognition on clinical trials is closely correlated with the willingness to participate in drug clinical trials.There should propagandize drug clinical trials to make sure the improvement of drug clinical trial progress.