OBJECTIVE:To study the effects of celastrol on the proliferation and apoptosis of human hepatoma HepG2 cells, and investigate its mechanism. METHODS:CCK-8 method was used to determine the cell activity 24,48,72 h after treated by 2, 5,10 μmol/L celastrol,and the proliferation inhibition rate and half inhibitory concentration(IC50)were calculated;flow cytome-try was conducted to detect the cell apoptosis rate and cycle change 24 h after treated by 2,5,10μmol/L celastrol,and the DMSO was used as negative control;rhodamine 123 staining method was used to determine the mitochondrial membrane potential 48 h af-ter treated by 2,5,10 μmol/L celastrol,and the DMSO was used as negative control;Western blot was adopted to detect the pro-apoptotic related genes Bax and B lymphoma 2(Bcl-2)protein expressions 0,12,24,36 h after treated by 5 μmol/L celastrol. RESULTS:2,5,10 μmol/L celastrol can inhibit cell proliferation,IC50 was 5.834 μmol/L. 2,5,10 μmol/L celastrol can induce apoptosis;5,10 μmol/L celastrol can block cell in G0/G1,S phases,compared with negative control group,with significant differ-ences(P<0.05 or P<0.01),and the above effects all showing certain concentration-dependent manner. 5 μmol/L celastrol can in-crease Bax protein expression and decrease Bcl-2 protein expression after cultured for 12,24,36 h,showing certain time-depen-dent manner;compared with 0 h,there was significant difference(P<0.05 or P<0.01). CONCLUSIONS:Celastrol can obvious-ly inhibit the proliferation of human hepatoma HepG2 cells and induce their apoptosis,and the mechanism may be related with strengthening mitochondrial permeability and promoting the release of apoptosis-inducing factor.

Tumor cell line culture technologies emerged as a strong impetus to the development of tumor biology research.However,cell line tumor model presented limited predictive value and instable properties in the clinical translational research of new cancer therapies.Recently Patient-derived Xenograft Model (PDX) has aroused researcher's attention and been widely applied to new cancer therapy research.This new model could highly retain the stroma heterogeneity、histological characteristics and molecular diversity of the original tumor,and is expected to bring new breakthroughs in individualized treatment of tumor patients.

Objective To investigate the effect of different investing materials on the complete denture flasking deformation.Methods The denture wax casts were invested by plaster,dental stone,and dental stone together with silicone,respectively.8 trial dentures were randomly chosen from above each group,and 4 reference points were selected in the cast.The conventional water bath polymerization system was used for the process.The distance between reference points were measured before and after thermally processing the Acrylic base.F test and Kruskal-Wallis H test were applied for statistical analysis.Results The distance between A and B (F =3.768,P =0.040) and the mean of total distance among O,A,B and C(F =4.830,P =0.019) had statistically significant differences among the three groups.The deformation variance of Group 1 (a conventional plaster) between 175μm and 267μm was maximum.The deformation values of Group2 (a dental stone) was appropriate with Group3 (a dental stone + a silicone).Smoothness (x2 =17.575,P ＜ 0.01) was statistically different among the three groups.Conclusion The flaskingprocess with the plaster had the maximum movement.The process with dental stone showed the minimal toothmovement,the process with the dental stone along with with thesilicone caused a similar movement as from the single dental stone but resulted in a smoother denture surface.

Objective To observe the effect of rosuvastatin and memantine on EPC and learning or memory ability in VaD rats .Methods Forty adult male SD rats were randomly divided into sham operation group ,VaD model group ,memantine treatment group ,rosuvastatin treatment group , and memantine+rosuvastatin treatment group (combined treatment group) (8 in each group) .A VaD model was established by permanent ligation of bilateral common carotid arteries .The ani‐mals in rosuvastatin treatment group ,memantine treatment group and combined treatment group received gastric rosuvastatin 10 mg/(kg · d) ,memantine 10 mg/(kg · d) and memantine 10 mg/(kg · d)+rosuvastatin 10 mg/(kg · d) for 4 weeks while those in model group received gastric normal saline .Five weeks after operation ,the learning or memory ability was tested by Morris water maze test ,the escape latency and percentage of target quadrant were calculated ,the circulat‐ing EPC were detected by flow cytometry ,and the MVD in hippocampaus was assyed with vWF immunostaining .Results Five weeks after operation ,the learning or memory ability was signifi‐cantly lower in model group than in sham operation group (P< 0 .01) whereas the learning or memory ability ,the percentage of circulating EPC and the MVD in hippocampus were significantly higher in 3 treatment groups than in model group (P<0 .05) .Conclusion Rosuvastatin and me‐mantine can effectively improve the learning or memory ability of VaD rats by mobilizing their cir‐culating EPC and increasing the MVD in their hippocampus .However ,the effect of memantine or rosuvastatin does not differ greatly w hen they are used alone .

Literature about functional dyspepsia treated with acupuncture in recent 5 years is retrieved in China National Knowledge Infrastructure (CNKI), Wanfang database and PubMed. The research achievements are arranged and summed up to explore the mechanism of acupuncture for functional dyspepsia. It is found that acupuncture can regulate the secretion of braingut petide, and cause the coordination response of limbic system-brain. Also, it adjusts serum molecule metabolin and the gene expression of the transduction pathway of adjustment signal for rats. It is believed that functional dyspepsia treated with acupuncture is through multiple ways, and adjusting the function of braingut axis is one of the important mechanisms.
Acupuncture Points ; Acupuncture Therapy ; Animals ; Dyspepsia ; genetics ; metabolism ; therapy ; Humans ; Rats ; Signal Transduction

Objective: To investigate the effects of two different sorbents(Carbon perfusion apparatus and Resin perfusion apparatus)in Double plasma molecular absorb syetem for liver failure treatment. Methods: A total of 152 cases with liver failure who were admitted to The Sixth People's Hospital of Zhengzhou, from June 2016 to May 2018 were selected and divided into DPMARS Carbon group (77 cases) and Resin group (75 cases). The two groups were observed in terms of liver function, prothrombin activity(PTA),Plasma albumin ,tumor necrosis factor alpha and interleukin-6 were detected and compared between the two groups before and after treatment. Results: ①The clinical symptoms improved in different degree in two groups, the recovery rate of Carbon cans Carbon perfusion apparatus group and Resin group separately were89.6% (69/77)、90.7% (68/75)(χ² = 0.048, P = 0.975), there were no statistical differences. There were no statistical differences between the two groups in untoward reactions(χ² = 0.235, P = 0.995), ②Compared with before treatment, TBil(t = 3.735, 3.728; P = 0.000, 0.000)、ALT(t = 5.117, 5.203; P = 0.000, 0.000)、TNF-α (t = 3.158, 3.094; P = 0.000, 0.002)、IL-6(t = 3.647, 3.559; P = 0.002, 0.003)decreased and ALB (t = 2.300, 3.065; P = 0.024, 0.003) increased significantly after treatment in both groups, and there were statistical differences. There were no signifiant differences in the changes in ALB(t = 0.316, 0.209; P = 0.657, 0.720) and PTA(t = 0.810, 0.843; P = 0.429, 0.516). ③After treatment, there were no signifiant differences in the changes in TBil、ALT、ALB、PTA、TNF-α、IL-6(t = 0.377、0.904、-1.133、-1.552、0.841、0.401; P = 0.952、0.283、0.826、0.094、0.154、0.457). Conclusion Double plasma molecular absorb syetem is effective in treating liver failure. Carbon perfusion apparatus or Resin perfusion apparatus can be combined with Specific bilirubin adsorption column for DPMARS in clinical treatment,and their effects are similar.

Objective To understand the experience of oncology nurses participating in fertility preservation services,and to provide a reference for oncology nurses to formulate targeted training courses and management measure.Methods From September to November 2023,phenomenological research methods were used to select 14 oncology nurses in a tertiary A cancer hospital in Tianjin for semi-structured interviews.Colaizzi 7-step analysis method was used to analyze the interview data and summarize the themes.Results 3 themes and 10 sub-themes were extracted:①The driving forces for participating in fertility preservation services(long-term benefits of fertility preservation,individual conditions of cancer patients,self-conscious cognition of role responsibilities,and internal drivers of empathy);②Oncology nurses are hampered by the lack of professional quality(knowledge system has not been built,ideological deviation needs to be corrected,communication skills need to be strengthened);③ The practical difficulties of oncology nurses participating in fertility preservation services(lack of targeted education and training,lack of multidisciplinary team contact channels,and lack of normative institutional guarantee).Conclusion Oncology nurses play an indispensable role in fertility preservation services.Hospitals need to pay attention to the unique role of oncology nurses and develop targeted training courses to improve their professional quality,so as to promote the implementation of fertility preservation services in China.

Objective To explore the risk factors affecting prognosis of critically ill patients following cardiac surgery, furthermore, to assess severity and keep alarm earlier. Methods A retrospective study was conducted. The clinical data of critically ill patients following cardiac surgery admitted to intensive care unit (ICU) of the Affiliated Hospital of Guizhou Medical University from January 1st 2014 to December 31st 2018 were enrolled. The clinical characteristics, acute physiology and chronic health evaluation Ⅱ (APACHEⅡ) and the worst laboratory examination within 24 hours after ICU admission, and the duration of mechanical ventilation, length of ICU stay, using continuous renal replacement therapy (CRRT), accepting vasoactive agents such as norepinephrine, dopamine or dobutamine and blood products such as red blood cells, plasma or platelets were recorded. The patients were divided into survival group and dead group based on discharge prognosis, and the difference in clinical data between the two groups was compared. Binary multivariate Logistic regression analysis was used to screen the risk factors affecting the prognosis of critically ill patients following cardiac surgery, and the receiver operating characteristic (ROC) curve was plotted to analyze the predictive value of these risk factors. Results In total, 97 patients after cardiac operation were admitted to ICU during the five years. Thirty-two patients were excluded owing to age less than 16 years old, no more than 24 hours of the length of ICU stay, without the outcomes of myocardium enzymes or myocardium markers within the first 24 hours or admitted only for pacemaker. Finally, 65 patients met the criteria, with 40 survived and 25 died. Compared with survival group, APACHEⅡ scores, the level of serum uric acid, serum creatinine (SCr), cardiac troponin T (cTnT), brain natriuretic peptide (BNP), procalcitonin (PCT) and the rate of patients accepting CRRT, vasoactive agents and blood products in dead group were significantly increased with significant differences; however, there was no statistically difference in gender, age, body weight index (BMI), distribution of types of cardiac surgery, ratio of patients suffered from hypertension and diabetes, mean arterial pressure (MAP), white blood cell (WBC), coagulation, length of ICU stay, or duration of mechanical ventilation between the two groups. Binary multivariate Logistic regression analysis showed that APACHEⅡ scores [odds ratio (OR) = 1.123, 95% confidence interval (95%CI) = 1.004-1.257, P = 0.043] and cTnT (OR = 1.496, 95%CI = 1.038-2.158, P = 0.031) were the independent risk factors for prognosis of critical ill patients following cardiac surgery. ROC curve analysis showed that APACHEⅡ score and cTnT had predictive value for prognosis of critical ill patients following cardiac surgery, the best was exerted when APACHEⅡ score combined with cTnT, the area under the ROC curve (AUC) was 0.839, the joint prediction probability was 0.42, the sensitivity was 80.0%, and the specificity was 64.0%. Conclusion APACHEⅡscore and cTnT may be one of independent risk factors for prognosis of critical ill patients following cardiac surgery, and there will be far more greater predictive value when APACHEⅡ score combined with cTnT.

Objective:To compare and evaluate the quality of wild and different cultivation methods of Sanghuang porus vaninii (Ljub.) L.W. Zhou & Y.C. Dai through analysis on UPLC characteristic atlas and multi-component content determination results. Methods:UPLC was used to establish the characteristic chromatogram and multi-component content determination method of Sanghuang porus vaninii (Ljub.) L.W. Zhou & Y.C. Dai, and clustering analysis, orthogonal partial least squares - discriminant analysis method were used for chemical pattern recognition analysis. Results:The results showed that there were 10 common peaks in 18 batches of Sanghuang porus vaninii (Ljub.) L.W. Zhou & Y.C. Dai. Five components were identified, erythrothioneine(peak 1), protocatechuic acid (peak 2), protocatechualdehyde (peak 3), caffeic acid (peak 4) and Hispidin (peak 5). HCA and OPLS-DA could distinguish Sanghuang porus vaninii (Ljub.) with different cultivation methods. Conclusion:Sanghuang porus vaninii (Ljub.) L.W. Zhou & Y.C. Dai in wood is closer to wild Sanghuang porus vaninii (Ljub.) L.W. Zhou & Y.C. Dai than in substitute cultivation. The UPLC characteristic atlas and multi-component content determination method established in this study can provide reference for the quality evaluation of Sanghuang porus vaninii (Ljub.) L.W. Zhou & Y.C. Dai.

Objective The present study aimed to evaluate the expression and intratumoral heterogeneity of LN?5γ2 in esophageal squamous cell carcinoma ( ESCC) . Methods The expression of LN?5γ2 protein was examined in 135 ESCC cases by immunohistochemistry, and to analyze its relationship with the clinical relevance of patients. The protein expressions in different regions in the same tumor as well as different nests in the same region were compared. Results Moderate and high expression of LN?5γ2 protein was detected in 40.0% (54/135) of tumor tissues. Positive immunohistochemical staining was observed in 31.1% (23/74) of early stage (stages Ⅰ/Ⅱ) cases and 50.8% (31/61) of late stage (stage Ⅲ) cases, with a significant difference between these two groups (P=0.023). There was no statistical association of LN?5γ2 expression with age, sex of patients, PT sage, lymph node metastasis and degree of tumor differentiation ( P>0.05) . However, differential expression of LN?5γ2 protein was found at different sampling sites in the same tumor and the same sampling site in different carcinomas. Conclusion High expression of LN?5γ2 is positively correlated with tumor clinical stages and there existed intratumoral heterogeneity of LN?5γ2 expression in ESCC tissues.