Exploring the mechanism of Xihuang Pill's anti-hyperplasia of mammary glands effect based on UPLC-Q-orbitrap-MS technology / 药学学报

Based on UPLC-Q-orbitrap-MS and biological network analysis tools, the mechanism of Xihuang Pill in improving hyperplasia of mammary glands was systematically analyzed. The rat model of hyperplasia of mammary glands was established by intramuscular injection of estradiol benzoate and progesterone. LC-MS tissue metabolomics was used to explore the key metabolites and metabolic pathways of Xihuang Pill in improving hyperplasia of mammary glands in rat. The network analysis of the key metabolites regulated by Xihuang Pill was carried out by integrating biological network analysis tools, focusing on the key metabolic pathways, and exploring the potential targets of Xihuang Pill to improve hyperplasia of mammary glands. Compared with the control group, there were significant differences in the content of 49 differential metabolites in the tissues of the model group (P < 0.05). Xihuang Pills could significantly call back 17 metabolites such as L-alanine, threonine, indole-3-carboxylic aldehyde, lysine, arginine, alanylleucine, glycyltyrosine, γ-glutamyl leucine, vitamin B3, serine leucine, threonine leucine, isoleucine glutamic acid, γ-glutamyl tyrosine, decanoyl-L-carnitine, uric acid, leucylleucine, S-adenosyl-methionine. Further network analysis and literature research on the key metabolites regulated by Xihuang Pills showed that the AGE-RAGE signaling pathway may be one of the important pathways for Xihuang Pills to improve hyperplasia of mammary glands. STAT3, MAPK1, EGFR, CASP3, CASP8, PRKCA and JUN in the AGE-RAGE signaling pathway may be potential targets for Xihuang Pills to improve hyperplasia of mammary glands. The animal experiment operations involved in this paper follow the provisions of the Animal Ethics Committee of Gansu University of Traditional Chinese Medicine and pass the ethical review of animal experiments (approval number: 2022-705).

Decreasing complexity of glucose time series derived from continuous glucose monitoring is correlated with deteriorating glucose regulation / 医学前沿

Most information used to evaluate diabetic statuses is collected at a special time-point, such as taking fasting plasma glucose test and providing a limited view of individual's health and disease risk. As a new parameter for continuously evaluating personal clinical statuses, the newly developed technique "continuous glucose monitoring" (CGM) can characterize glucose dynamics. By calculating the complexity of glucose time series index (CGI) with refined composite multi-scale entropy analysis of the CGM data, the study showed for the first time that the complexity of glucose time series in subjects decreased gradually from normal glucose tolerance to impaired glucose regulation and then to type 2 diabetes (P for trend < 0.01). Furthermore, CGI was significantly associated with various parameters such as insulin sensitivity/secretion (all P < 0.01), and multiple linear stepwise regression showed that the disposition index, which reflects β-cell function after adjusting for insulin sensitivity, was the only independent factor correlated with CGI (P < 0.01). Our findings indicate that the CGI derived from the CGM data may serve as a novel marker to evaluate glucose homeostasis.

Mechanism of blood-activating and mass-dissipating Chinese patent medicine against hyperplasia of mammary glands and use with other medicine: a review / 中国中药杂志

Caused by endocrine disorder, hyperplasia of mammary glands(HMG) tends to occur in the young with increasing incidence, putting patients at the risk of cancer and threatening the health of women. Therefore, the prevention and treatment of HMG is attracting more and more attention. Amid the modernization of traditional Chinese medicine(TCM), many scholars have found that Chinese patent medicine has unique advantages and huge potential in treatment of endocrine disorder. Particularly, Chinese patent medicine with the function of blood-activating and mass-dissipating, such as Xiaojin Pills and Xiaozheng Pills, has been commonly used in clinical treatment of HMG, which features multiple targets, obvious efficacy, small side effect, and ease of taking and carrying around. Clinical studies have found that the combination of Chinese patent medicine with other medicine can not only improve the efficacy and relieve symptoms such as hyperplasia and pain but also reduce the toxic and side effects of western medicine. Therefore, based on precious pharmacological research and clinical research, this study reviewed the mechanisms of blood-activating mass-dissipating Chinese patent medicine alone and in combination with other medicine, such as regulating levels of in vivo hormones and receptors, promoting apoptosis, inhibiting angiogenesis, improving hemorheology indexes, enhancing immunity, and boosting antioxidant ability. In addition, limitations and problems were summarized. Thereby, this study is expected to lay a theoretical basis for the further study and clinical application of blood-activating mass-dissipating Chinese patent medicine alone or in combination with other medicine against HMG.

Comparison of three methods for establishing rat peri-implantitis model / 北京大学学报(医学版)

OBJECTIVE@#To compare the efficiency and effect of establishing rat peri-implantitis model by traditional cotton thread ligation and local injection of Porphyromonas gingivalis lipopolysaccharide (LPS) around the implant, as well as the combination of the two methods.@*METHODS@#Left side maxillary first molars of 39 male SD rats were extracted, and titanium implants were implanted after four weeks of healing. After 4 weeks of implant osseointegration, 39 rats were randomly divided into 4 groups. Cotton thread ligation (n=12), local injection of LPS around the implant (n=12), and the two methods combined (n=12) were used to induce peri-implantitis, the rest 3 rats were untreated as control group. All procedures were conducted under 5% isoflurane inhalation anesthesia. The rats were sacrificed 2 weeks and 4 weeks after induction through carbon dioxide asphyxiation method. The maxilla of the rats in the test groups were collected and marginal bone loss was observed by micro-CT. The gingival tissues around the implants were collected for further real time quantitative PCR (RT-qPCR) analysis, specifically the expression of tumor necrosis factor-alpha (TNF-α) as well as interleukin-1β (IL-1β). The probing depth (PD), bleeding on probing (BOP) and gingival index (GI) of each rat in the experimental group were recorded before induction of inflammation and before death.@*RESULTS@#After 4 weeks of implantation, the osseointegration of implants were confirmed. All the three test groups showed red and swollen gums, obvious marginal bone loss around implants. After 2 weeks and 4 weeks of inflammation induction, PD, GI and BOP of the three test groups increased compared with those before induction, but only BOP was statistically significant among the three test groups (P < 0.05). At the end of 2 weeks of inflammation induction, marginal bone loss was observed at each site in the cotton thread ligation group and the combined group. At each site, the bone resorption in the combined group was greater than that in the cotton thread ligation group, but the difference was not statistically significant (P > 0.05), bone resorption was observed at some sites of some implants in LPS local injection group. At the end of 4 weeks of inflammation induction, marginal bone loss was observed at all sites in each group. The marginal bone loss in the cotton thread ligation group and the combined group was greater than that in the LPS local injection group, and the difference was statistically significant (P < 0.05). At the end of 2 weeks and 4 weeks of induction, the expression of TNF-α and IL-1β in the test groups were higher than those in the control group (P < 0.05).@*CONCLUSION@#Compared with local injection of LPS around the implant, cotton thread ligature and the two methods combined can induce peri-implantitis in rats better and faster.

Management of pediatric acute hematogenous osteomyelitis / 中华创伤骨科杂志

Acute hematogenous osteomyelitis (AHO) is the type of its kind diagnosed most frequently in pediatric patients. In the past decade, the incidence of methicillin-resistant Staphylococcus aureus infections has increased in children. The more complex situation of infections may lead additionally to deep vein thrombosis (DVT), septic pulmonary embolism, pneumonia, empyema, endocarditis, bacteremia and septic shock. Hence, hospital stays are often lengthy and patients often critically ill. Since delayed appropriate therapy can lead to chronic osteomyelitis, as well as impairments in bone growth and development, early accurate diagnosis and prompt initiation of appropriate treatment remain central principles in the evaluation and treatment of AHO. Therefore, care of children with AHO inevitably requires an organized and interdisciplinary approach to reach timely, comprehensive and accurate diagnoses so that effective treatment may be carefully planned and enacted with subsequent monitoring of the child until clinical resolution is achieved. This review is devoted exclusively to the management of AHO in children, providing an update on the current understanding of existing evidence and future directions to improve care for pediatric AHO.

Hypoxia and inflammation are risk factors for acute myocardial injury in patients with coronavirus disease 2019 / 北京大学学报(医学版)

OBJECTIVE@#To investigate the risk factors for acute myocardial injury in coronavirus disease 2019 (COVID-19) patients.@*METHODS@#This is a retrospective analysis of a COVID-19 cohort, in which 149 confirmed COVID-19 patients enrolled were divided into the group of myocardial injury (19 cases) and the group of non-myocardial injury (130 cases). Myocardial injury was defined according to Fourth universal definition of myocardial infarction released by European Society of Cardiology (ESC) in 2018, that cardiac troponin (cTn) was above 99th percentile of the reference level. Clinical information and results of laboratory tests of the eligible patients were collected. Factors associated with myocardial injury in COVID-19 patients were evaluated.@*RESULTS@#Compared with the group of non-injury, the patients in the group of injury were older and had a larger proportion of severe or critical cases (P < 0.05), higher respiratory rate and lower percutaneous oxygen saturation (SpO2) without oxygen therapy on admission (P < 0.05). All inflammatory indexes except for tumor necrosis factor α (TNF-α) showed significant elevation in the patients of the group of injury (P < 0.05). Analyzed by Spearman correlation test, we showed that the levels of circulatory cTnI were in positive correlation with the levels of high-sensitivity C-reactive protein (hs-CRP), ferritin, receptor of interleukin-2 (IL-2R), interleukin-6 (IL-6) and interleukin-8 (IL-8) (ρ > 0, P < 0.05). Lower SpO2 without oxygen therapy on admission (OR: 0.860, 95%CI: 0.779-0.949, P=0.003) and higher plasma IL-6 levels (OR: 1.068, 95%CI: 1.019-1.120, P=0.006) were independent risk factors for acute myocardial injury in the patients with COVID-19 by multivariate Logistic regression analyses.@*CONCLUSION@#Hypoxic state and inflammation may play a key role in the pathogenesis of acute myocardial injury in COVID-19 patients.

Risks factors for death among COVID-19 patients combined with hypertension, coronary heart disease or diabetes / 北京大学学报(医学版)

OBJECTIVE@#The pathogenesis of myocardial injury upon corona virus disease 2019 (COVID-19) infection remain unknown,evidence of impact on outcome is insufficient, therefore, we aim to investigate the risk factors for death among COVID-19 patients combined with hypertension, coronary heart disease or diabetes in this study.@*METHODS@#This was a single-centered, retrospective, observational study. Patients of Sino-French Eco-City section of Tongji Hospital, Wuhan, China attended by Peking University Supporting Medical Team and admitted from Jan. 29, 2020 to Mar. 20, 2020 were included. The positive nucleic acid of COVID-19 virus and combination with hypertension, coronary heart disease or diabetes were in the standard. We collected the clinical data and laboratory examination results of the eligible patients to evaluate the related factors of death.@*RESULTS@#In the study, 94 COVID-19 patients enrolled were divided into the group of death (13 cases) and the group of survivors (81 cases), the average age was 66.7 years. Compared with the survival group, the death group had faster basal heart rate(103.2 beats/min vs. 88.4 beats /min, P=0.004), shortness of breath(29.0 beats /min vs. 20.0 beats /min, P<0.001), higher neutrophil count(9.2×109/L vs. 3.8×109/L, P<0.001), lower lymphocyte count(0.5×109/L vs. 1.1×109/L, P<0.001), creatine kinase MB(CK-MB, 3.2 μg/L vs. 0.8 μg/L, P<0.001), high sensitivity cardiac troponin Ⅰ(hs-cTnⅠ, 217.2 ng/L vs. 4.9 ng/L, P<0.001), N-terminal pro brain natriuretic peptide(NT-proBNP; 945.0 μg/L vs. 154.0 μg/L, P<0.001), inflammatory factor ferritin(770.2 μg/L vs. 622.8 μg/L , P=0.050), interleukin-2 recepter(IL-2R, 1 586.0 U/mL vs. 694.0 U/mL, P<0.001), interleukin-6(IL-6, 82.3 ng/L vs. 13.0 ng/L, P<0.001), interleukin-10(IL-10, 9.8 ng/L vs. 5.0 ng/L, P<0.001)were higher than those in the survival group. Univariate logistic regression analysis showed that the risk factors for death were old age, low non oxygen saturation, low lymphocyte count, myocardial injury, abnormal increase of IL 2R, IL-6, and IL-10. Multivariate regression showed that old age (OR=1.11, 95%CI=1.03-1.19, P=0.026), low non oxygen saturation(OR=0.85, 95%CI=0.72-0.99, P=0.041), and abnormal increase of IL-10(＞9.1 ng/L, OR=101.93, 95%CI=4.74-2190.71, P=0.003)were independent risk factors for COVID-19 patients combined with hypertension, coronary heart disease or diabetes.@*CONCLUSION@#In COVID-19 patients combined with hypertension, coronary heart disease or diabetes, the risk factors for death were old age, low non oxygen saturation, low lymphocyte count, myocardial injury, and abnormal increase of IL-2R, IL-6, and IL-10. Old age, low non oxygen saturation and abnormal increase of IL-10 were independent risk factors.

Molecular Mechanism of Erzhiwan in Inhibiting Benign Prostatic Hyperplasia Base on Network Pharmacology / 中国实验方剂学杂志

Objective: To explain the "multi-components, multi-targets, multi-pathways" mechanism of Erzhiwan in treating benign prostatic hyperplasia(BPH) based the network pharmacology. Method: Ingenuity pathway analysis(IPA) was used to construct components-targets-diseases network and PPI network, then the classified enrichment analysis of gene ontology (GO) and pathway enrichment analysis (KEGG) were carried out on the main function of its gene sets, so as to discuss the mechanism of Erzhiwan in the treatment of BPH. Result: Erzhiwan has 19 components in IPA; and apigenin,luteolin,oleanolic acid and quercitrin were common components of Ligustri Lucidi Fructus and Echiptae Herba and the main component of Erzhiwan. Muscarinic acetylcholine receptor M3 (CHRM3), muscarinic acetylcholine receptor M2 (CHRM2), urokinase plasminogen activator receptor (PLAUR), kinin releasing enzyme 3 (KLK3), cadherin 1 (CDH1), chemokines 3 (CCL3) and metalloproteinase-1 (MMP-1) were important targets for Erzhiwan to treat BPH. The target proteins in PPI network were enriched with 20 GO functions and 5 main KEGG pathways, and Docking was verified for relevant targets. Conclusion: Erzhiwan may play a role in treating BPH by activating MMP-1 and inhibiting KLK3 and CCL3 protein expressions, inducing apoptosis, inhibiting cell proliferation and intervening relevant pathways of mitogen-activated protein kinase/extracellular signal-regulated kinase(MAPK/ERK) and nuclear factor(NF)-κB(NF-κB).

Effects of Diallyl Disulfide on the Proliferation and Apoptosis of Epithelial Ovarian Cancer Cells by Inducing G2/M Arrest / 中国医学科学院学报

Objective To explore the effects of diallyl disulfide(DADS)-induced G2/M phase arrest on proliferation and apoptosis of ovarian cancer cells and its possible molecular mechanism.Methods DADS was used to incubate SK-OV-3 and OVCAR-3 cells,respectively,in different concentrations. Cell proliferation was measured by MTT assay and cell apoptosis rate was detected by flow cytometry assay. Xenograft model assay were performed to analyze the antitumor effect in vivo. Cell cycle phase distribution was detected by flow cytometry. Expressions of cell cycle G2/M phase as well as proliferation- and apoptosis-related proteins were measured by Western blotting.Results MTT assay showed that,after treatment of SK-OV-3(F=247.86,P=0.000)and OVCAR-3 cells(F=302.54,P=0.000)with different concentrations of DADS,the cell proliferation inhibition rate was significantly elevated with the increase of DADS concentrations in a concentration-dependent manner. The inhibition rate of SK-OV-3(F=335.12,P=0.000)and OVCAR-3 cells(F=347.43,P=0.000)at 24 h was significantly higher than that at 12 h and 48 h,showing a significant time-dependence manner. Flow cytometry showed that,after SK-OV-3 and OVCAR-3 cells were treated with different concentrations of DADS,the apoptosis rates increased significantly with the increase of DADS concentration in a concentration-dependent manner(P<0.05). The apoptotic rates of SK-OV-3 and OVCAR-3 cells treated with DADS at 24 h was significantly higher than that at 12 h and 48 h in a significant time-dependence manner(P<0.05). Compared with the blank treatment group,intraperitoneal injection of DADS solution significantly inhibited the xenograft volume of ovarian cancer cells in nude mice(F=548.23,P=0.000;F=311.84,P=0.000). After 30 mg/L of DADS was applied to SK-OV-3 and OVCAR-3 cells for 24 h,the percentage of cells in G2 phase of SK-OV-3 and OVCAR-3 cells increased significantly(F=375.11,P=0.000;F=256.48,P=0.000),compared with the blank cells. After 30 mg/L DADS was applied to SK-OV-3 and OVCAR-3 cells for 24 h,the expressions of p-Chk1(ser345)(F=108.89,P=0.013;F=97.58,P=0.018),p-CDC25C(ser216)(F=87.25,P=0.025;F=114.25,P=0.009),p-P53(ser15)(F=112.41,P=0.011;F=255.87,P=0.000),P21WAF1(F=246.38,P=0.001;F=141.36,P=0.005)and p-CDK1(Thr14/Tyr15)protein(F=298.12,P=0.000;F=233.15,P=0.000)were significantly increased,whereas the expressions of CDK1(F=308.24,P=0.000;F=257.55,P=0.000)and CyclinB1 protein(F=223.15,P=0.001;F=241.28,P=0.000)were significantly reduced.The expressions of proliferation and apoptosis-related proteins PCNA(F=77.36,P=0.031;F=157.28,P=0.001),Ki-67(F=205.64,P=0.007;F=315.22,P=0.000)and Survivin(F=122.13,P=0.013;F=188.24,P=0.000)were significantly decreased and Cleaved-caspase3 protein was significantly increased(F=86.46,P=0.023;F=99.11,P=0.009).Conclusion DADS can inhibit the proliferation of ovarian cancer cells and induce their apoptosis,which may be related to the activation of Chk1-CDC25C and P53-P21WAF1 signaling pathways in G2/M checkpoint,decreased kinase activity of CDK1,down-regulated expressions of CDK1 and CyclinB1 proteins,and ultimately cell cycle arrest at G2/M phase.

Correlation between ratio of Apo A1／Apo B and heart failure／ / 心血管康复医学杂志

To analyze the correlation between ratio of apolipoprotein A 1 (ApoA1 )／apolipoprotein B (ApoB) and heart failure (HF).Methods : A total of 150 HF patients treated in our department were divided into NYHA class II group (n＝54) ,class III group (n＝48) and class IV group (n＝48).Their LVEF ,stroke volume (SV) ,cardiac output (CO) ,cardiac index (CI) ,levels of BNP ,serum Apo A1 and Apo B were measured ,and Apo A1／Apo B was calculated ,then correlation analysis was performed .Results : Compared with class II group ,there were significant reductions in LVEF [ (37. 29 ± 6. 25)% vs.(34. 66 ± 5.90)% vs.(32.55 ± 5. 23)%] ,SV [ (36. 40 ± 4.18) ml vs .(34.05 ± 3. 49) ml vs.(31.72 ± 5.44) ml] ,CO [ (3.71 ± 0.59) L／min vs .(3.39 ± 0. 43) L／min vs.(3. 17 ± 0.44) L／min] ,CI [ (2. 16 ± 0.50 ) L· min－1 · m－2 vs.(1. 76 ± 0.37 ) L· min－1 · m－2 vs.(1. 44 ± 0.43) L·min－1 ·m－2 ] ,and ApoA1／ApoB [ (1.17 ± 0.44) vs.(0. 98 ± 0.28) vs.(0. 65 ± 0.24)] in class III group and class IV group ,and those of class IV group were significantly lower than those of class III group ;significant rise in levels of plasma BNP [ (469.23 ± 63. 12) pg／ml vs.(612. 52 ± 80.34) pg／ml vs.(822.96 ± 97.22) pg／ml] in class III group and class IV group ,and those of class IV group were significantly higher than those of class III group ,P＜0.05 or ＜0.01. Pearson correlation analysis indicated that serum Apo A 1／Apo B was significant positively correla‐ted with LVEF ,SV ,CO and CI ( r＝0. 422～0. 603 , P＜0.05 or ＜0.01) ,and significant inversely correlated with plasma BNP level ( r＝ －0. 625 , P＝0.002).Conclusion :The worse the cardiac function is ,the lower serum Apo A1／Apo B is in HF patients .There is positive correlation between them .21－3

Preogress in diagnosis and treatment of diabetic foot osteomyelitis / 中华创伤骨科杂志

Diabetic foot ulcer is a major complication of diabetes which is the most expensive and the most difficult to deal with and leads to a high rate of non-traumatic amputation.Diabetic foot osteomyelitis results from aggravation of diabetic foot ulcer.Unfortunately,the current therapeutic outcomes of diabetic foot osteomyelitis are still unsatisfactory because of its difficult diagnosis and special treatment protocols which are entirely different from those for conventional soft tissue infections.This paper summarizes the latest advances achieved in diagnosis and treatment of diabetic foot osteomyelitis.

A study on the attention networks dysfunction and its influencing factors in the patients with alcohol use disorder / 中华行为医学与脑科学杂志

Objective To explore the impairment of attention network function in male patients with alcohol use disorder(AUD) and the main influencing factors of attention network function. Methods Forty-one patients with AUD after withdrawal therapy and 34 healthy controls (HC) matched with their demograph-ic data were selected as subjects of study. Attention function were assessed by attention network test (ANT). Results Compared with the healthy control group((30. 62±19. 74)ms,(98. 59±1. 46)%),there were sig-nificant differences in the reaction time of alerting network(t=-2. 479,P=0. 015) and the correct rate of the attention network test(t=-2. 074,P=0. 044) in the AUD group((17. 02±26. 42)ms,( 95. 07±10. 73)%). Pearson correlation analysis showed the alert network of AUD was negatively correlated with the age of first drinking(r=-0. 316,P=0. 044) and was positively correlated with the score of Penn alcohol craving scale (PACS) (r=0. 364,P=0. 019). The correct rate of attention network function in patients with AUD was negatively correlated with the years for education ( r=-0. 343, P=0. 028) and years for addiction ( r=-0. 337,P=0. 031). Linear regression analysis showed the attention network function of AUD patients was affected by the age of first drinking(β=0. 432,t=2. 079,P=0. 046),the years for addiction(β=-0. 555,t=-3. 127,P=0. 004) and years for uncontrol drinking(β=0. 309,t=2. 074,P=0. 047). Conclusion The AUD patients were demonstrated deficit in the alerting network. The impairment of attention function of AUD patients were influenced by their drinking condition.

Progress in surgical treatment of severe acute pancreatitis / 国际外科学杂志

Acute severe pancreatitis (SAP) is one of the most common surgical acute abdominal diseases,which is difficult to treat because of its rapid onset,rapid progression,poor prognosis and high mortality.To some extent,early monitoring and treatment can improve the prognosis,and in the past,even early surgical treatment was advocated.With the development of imaging,medical technology and deep understanding of the disease,great changes have taken place in the treatment of SAP,and there has also been a breakthrough in the way of surgery.Although there are still many controversies in the choice of methods,the traditional operation has been gradually transferred to minimally invasive surgery.This article reviews the surgical treatment of SAP.

Selective Determination of Hydrazine Hydrate on Palladium Hydrogels-modified Electrochemical Sensor / 分析化学

Palladium hydrogel capped by β-cyclodextrins (Pdβ-CD) was prepared by a facile method with β-cyclodextrins and palladium(II) chloride,which were then modified onto the surface of gold electrode. The morphology and structure of the as-prepared palladium hydrogel were characterized by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), while the electrochemistry behaviors of gold electrode modified by Pdβ-CDwere investigated by cyclic voltammetry (CV) and differential pulse voltammetry(DPV). The results indicated the sensor had high electrochemistry response to hydrazine hydrate in the presence of K+,Na+,Mg2+,NH+4,Ni+2,Mn2+,Cl-,NO-3,SO2-4,PO3-4,HCOO-, C6H5O-3. Under the optimized conditions, the oxidized peak current showed linear relationship with the concentration of hydrazine hydrate in the concentration range of 25-950 μmol/L and the limit of detection (LOD) of 1.6 μmol/L(S/N=3).Owing to the facile preparation,high sensitivity and selectivity,the sensor has potential applications in determination of hydrazine hydrate in real water samples

The Clinical Evaluation of Danning Tablets on Regulating Gut Flora Displacement to Eliminate Biliary Inflammation and Prevent Gallstone Formation / 昆明医科大学学报

Objective To explore the mechanism of Danning Tablet on intestinal flora migration to eliminate biliary inflammation and prevent gallstone formation. Methods 104 cases of cholelithiasis admitted to the First Affiliated Hospital of Xi'an Jiaotong University School of Medicine were treated by choledocholithiasis but the master tube was cut and T tube drainage was performed from January 2014 to December 2016. Within a month did not take gallbladder drugs. Randomly divided into the Danning group and the control group, Danning group in addition to conventional treatment of biliary tract after surgery, in the first 2 days after starting to drink liquid according to the instruction manual dose of oral Danning tablets;the control group was given only biliary surgery After routine care, avoid taking gall bladder drugs. All patients were collected on the 7th day and the 14 th day after operation, about 100mL fasting T-tube was collected. Pay attention to the day before the collection of bile T tube pre-clamp to prevent the drainage of T tube affect the bile enterohepatic circulation. Detection of bile composition in the flora, observed before and after the flora differences, long-term follow-up of cholelithiasis recurrence. Results:The changes of the components before and after treatment:On the seventh day, the two groups of HS and UCB％were higher than the control group, the difference was statistically significant (<0.05) . On the 14th day in the treatment group, the three items of TBS, UCB％and HS were higher than the control group, but CH, LI and Z were lower than the control group, the difference was statistically significant ( <0.05) . The trend of stone formation before and after treatment:Compared with UCB％in control group, there was no significant change in LI and Z, but the HS value decreased, the difference was statistically significant ( <0.05) . There was no significant change of HS and UCB％in the treatment group, but the LI and Z values decreased, the difference was statistically significant (<0.05) . Conclusion Dan Ning Tablets can prevent cholesterol gallstone formation by regulating the intestinal flora, and affect the cholesterol content in bile , that plays a important role in prevention of cholesterol gallstone.

Study on the Extraction Technology for Active Constituents of Tibetan Medicine Pedicularis kansuensis / 中国药房

OBJECTIVE:To optimize the extraction technology of Tibetan medicine Pedicularis kansuensis and compare con-tent of verbascoside and isoverbascoside differences in P. kansuensis from various habitats. METHODS:Using verbascoside and iso-verbascoside and dry paste yield as comprehensive evaluation indexes,single factor test and orthogonal test were used to investigate the extraction solvent,solvent dosage,extraction time and times to optimize extraction technology,and the verification test was conducted. Contents of the 2 constituents verbascoside and isoverbascoside in P. kansuensis from Gansu,Qinghai and Sichuan were compared. RESULTS:The optimal extraction technology was as follows as 8-fold 50% ethanol,extraction for 3 times,90 min each time. The verification results showed that the average contents of verbascoside and isoverbascoside were 3.49%(RSD=1.28%,n=3),1.26%(RSD=1.32%,n=3),and average dry paste yields were 37.99%(RSD=1.97%,n=3). The contents of verbascoside and isoverbascoside in P. kansuensis from Qinghai were relatively higher. CONCLUSIONS:Optimized extraction tech-nology is reasonable,stable,feasible;the contents of index constituents in P. kansuensis from different habitats have certain differ-ences. The study can provide scientific evidence for the development and utilization of extraction,and the in-depth study of quality evaluation for medicinal material.

Action mechanisms of acid-resistant Streptococcus sanguis against Streptococcus mutans / 医学研究生学报

Objective Streptococcus sanguis is a possible candidate bacterium for the caries replacement therapy, which has no advantages in the acidic environment.The aim of the study was to construct acid-resistant strains of Streptococcus sanguis, determine its acid tolerance, and explore the mechanism of its antagonism against Sterptococcus mutans.Methods By gradually reducing the pH value of the medium, we constructed acid-resistant strains of Streptococcus sanguis, observed their growth and measured their acid tolerance according to their survival rate against lethal pH.We evaluated the competitive relationship between Streptococcus sanguis and Streptococcus mutans by plate experiment and detected the changes of related acid resistance genes by real-time quantitative PCR.Results The growth of Streptococcus sanguis and its acid-resistant strains were limited by the pH value, and that of Streptococcus sanguis was better in either acidic or normal environment.The lethal pH value of Streptococcus sanguis was 3.6, that of its acid-resistant strains was 2.3, and the survival rate of the acid-resistant strains was 66.59% in the pH 3.6 environment.In comparison, the lethal pH value of Streptococcus mutans was 2.5, that of its acid-resistant strains was 2.1, and the survival rate of the acid-resistant strains was 2.55% in the pH 2.5 environment.In the presence of chloramphenicol, the acid-resistant strains could not survive in the original lethal pH.In the sub-lethal pH environment, the expressions of the acid resistance-related genes Groel and Dnak in the acid-resistant strains were significantly up-regulated as compared with those in the original Streptococcus sanguis (P<0.05).Conclusion Streptococcus sanguis has an acid adaptability and can enhance acid resistance in the sub-lethal pH environment.Acid-resistant Streptococcus sanguis in the replacement therapy may provide some new ideas for the treatment of dental caries.

Syphilis serological detection results of inpatients in a general hospital / 中国感染控制杂志

Objective To understand serological detection results of syphilis among hospitalized patients in a gen-eral hospital,and provide new ideas for further prevention and treatment of syphilis. Methods Clinical data of inpa-tients with abnormal serological detection results for syphilis in a hospital from January 2012 to December 2013 were analyzed. Results A total of 164442 patients were admitted to a hospital from January 2012 to December 2013, 112576 of whom were performed syphilis serological screening,2048 cases were with abnormal results of serologi-cal detection for syphilis. The abnormal serological detection results were mainly in patients of 31~ and 41~ years (39.06% ),followed by patients of 51~,61~ years (34.42% ),and≥71 years (15.63% );unemployed people (34.08% ),farmers(23.05% ),and retirees(19.19% )were the main population with abnormal results. The abnor-mal serological detection results distributed in all 36 departments,the main departments were departments of respir-atory medicine(9.86% ),gynaecology(7.13% ),and cardiovascular internal medicine(6.88% ). Non-marital sex is the main route of transmission(56.79% );the main syphilis serological detection results were both positive for Treponemapallidum particle agglutination (TPPA)assay and rapid plasma reagin (RPR)(46.14% ),as well as TPPA positive and RPR negative (43.31% ). 860 (41.99% )patients were with latent syphilis. Conclusion The current status of patients with abnormal serological detection results of syphilis is not optimistic, mainly concentrated in patients of 31-50 years. It is necessary to strengthen publicity and education on prevention and treatment of syphilis,implement syphilis prevention and treatment policy,intensity syphilis screening,so as to pre-vent the epidemic and spread of syphilis.

Construction of pEGFP-C1-CXCL1 plasmid and detection of its expression in eukaryotic cells / 军事医学

Objective To construct the pEGFP-C1-CXCL1 eukaryotic expression vector and to investigate the effect of CXCL1 on the proliferation of HepG2 cells under endoplasmic reticulum stress ( ERS).Methods Fragments of CXCL1 were obtained from the cDNA library of HepG2 cells before CXCL1 was cloned into a pEGFP-C1 vector for a recombinant plasmid pEGFP-C1-CXCL1 which was screened and identified by PCR and sequence alignment .Then,the recombinant plas-mid of pEGFP-C1-CXCL1 was transfected into human 293 T cell line and the expression of CXCL 1 was detected by fluores-cence microscopy and Western blotting.pEGFP-C1-CXCL1was furhter transfected into HepG2 cells, and CCK8 was used to detect the inhibitory effect of CXCL1 on tumor proliferation induced by TM in hepatocellular carcinoma .Results pEGFP-C1-CXCL1 was vertified by sequencing analysis .Fluorescence microscopy showed that pEGFP-C1-CXCL1 was transfected into 293T.CXCL1 expression was detected by Western blotting .CCK8 showed that TM inhibited tumor proliferation , while overexpression of CXCL1 decreased the inhabitory rate on cell proliferation of HepG 2 cells under ER stress compared to pEGFP-C1 group and the control group .Conclusion A recombinant pEGFP-C1-CXCL1 plasmid is successfully constructed that can be expressed stably in human 293T cells.Overexpression of CXCL1 can effectively reduce the inhabitory rate of HCC cells induced by the ER stress.

Relationship between disease progression of primary gastric cancer and preoperative neutrophil-to-lymphocyte ratio and platelet-to-lymphocyte ratio / 中国现代普通外科进展

Objective:To investigate The relationship between the disease progression of primary gastric cancer and preoperative neutrophil-to-lymphocyte ratio、platelet-to-lymphocyte ratio.Methods:A retrospective analysis of the clinical data of 188 cases treated in our hospital from April 2015 to February 2015 with primary gastric cancer.according to the peripheral venous blood NLR、PLR,analyze the relationship of NLR、PLR with different tumor infiltration depth、lymph node staging and TNM staging with statistical methods.Results:There is statistically significance of NLR、PLR between different groups (P＜0.01);tumor infiltration depth,lymph node staging and TNM stage of high NLR、PLR group in patients with gastric cancer were higher than low NLR、PLR group,the difference is statistically significant (P＜0.01);NLR is significantly positive correlated to PLR (r=0.379,P＜0.001);Multiple linear regression analysis shows the above factors had significant effects on preoperative NLR,PLR (P＜0.05).Conclusions:Preoperative peripheral blood NLR and PLR levels may be value in predicting the progression of gastric cancer,High preoperative NLR indicates later disease progression and worse prognosis.