Object To study the chemical constituents in the ro ot of Isatis indigotica Fort Methods The s eparations were carried out by column chromatography and identified by advanced physical and spectral data analysis Results Five compounds were isolated and identified as neohesperidin (Ⅰ), ammonium formate (Ⅱ), isol iquiritigenin (Ⅲ), liquiritigenin (Ⅳ), and adenosine (Ⅴ) Conclusio n Neohesperidin, liquiritigenin and isoliquiritigenin are isolated f o r the first time from the plants of Cruciferae, ammonium formate is obtained fro m the root of I indigotica for the first time

OBJECTIVE: To establish a future value creation-oriented sustainable development strategy model for Sichuan Province TCM counterparts.METHODS: A quantitative and qualitative analysis was performed based on the strategy management theory, empirical study, theoretical study, and model research. RESULTS: The Bian Que Company adopted specialization development strategy, variation competition strategy and the crosswise integrated strategy. CONCLUSION: The counterparts of Bian Que Pharmaceutical Company Limited in Sichuan Province may draw experience from this company to lay an emphasis on its core business, horizontally integrate and enlarge management scale, segment market in many goals to make it bigger and larger to achieve better performance.

Humans ; Noise, Occupational ; Normal Distribution ; Textiles

Objective To investigate the incidence of the aspirin resistance in secondary prevention of cerebral infarction, and the relationship between the aspirin resistance and the cerebral infarction recurrence or other vascular events during the follow-up periods.Methods Aspirin were taken from the first day of admission in 600 patients with cerebral infarction.The platelet aggregation rate was measured after 7-10 days to screen the patients with aspirin resistance or aspirin sensitivity.All patients were followed up for 6 to 24 months and the cerebral infarction recurrence and other vascular events were recorded.Logistic regression model was used to estimate the risk factors of aspirin resistance, vascular events and prognosis.Results Of 600 patients, 150 (25.0% ) patients were resistant to aspirin and 450 (75.0% ) patients were sensitive to aspirin.The proportion of female and diabetes patients, and the level of low density lipoproteins (LDL) in the aspirin resistance group were higher than those in the aspirin sensitivity group.Diabetes (OR = 2.58, 95% CI 1.37-4.85, P=0.003) and high LDL level (OR = 1.89, 95% CI 1.21-2.93, P = 0.005 ) were independent risk factors of aspirin resistance.The incidence of cerebral infarction recurrence and myocardial infarction and all-cause mortality in the aspirin resistance group were all higher than those in the aspirin sensitivity group.Diabetes ( OR = 2.47, 95% CI 1.36-4.65, P = 0.003 ) , atherothrombosis cerebral infarction (OR = 2.13, 95% CI 1.24-3.95, P = 0.023) and aspirin resistance (OR = 3.86,95% CI 1.79-5.87, P = 0.002) were independent risk factors of vascular events during the following-up period.In the patients with aspirin resistance, the risk of the recurrence of vascular events increased 3.86 times.Conclusions The incidence of aspirin resistance is high in secondary prevention of cerebral infarction.Aspirin resistance is closely correlated with cerebral infarction recurrence and other vascular events.

Telemedicine is one of the five key components of the "Internet Plus Healthcare".Due to its high speed,real-timeness,low cost,and wide spread,telemedicine is highly feasible in the prevention and control of major infectious diseases.This article introduces the practiceof telemedicine in Peking Union Medical College Hospital during the cornavirus disease 2019(COVID-19)epidemic,during which the network resources were applied to break geographical restrictions and resolve communication barriers between hospitals and departments.This article summarizes the telemedicine application before,during and after COVID-19 control and elucidates how to build a telemedicine prevention and control system for infectious diseases,with an attempt to further improve telemedicine and is application in the public health emergency system in China.
Betacoronavirus ; Coronavirus Infections ; drug therapy ; Humans ; Pandemics ; Pneumonia, Viral ; drug therapy ; Telemedicine

Objective To assess the clinical effects and adverse reactions of different regimens of chemotherapies for elderly patients with advanced gastric cancer. Methods 95 elderly patients with advanced gastric cancer were randomly divided into 3 groups. The regimens of OLF,OX and HCF were used to treat 38 patients,25 patients and 32 patients respectively. The short-term curative effects and side effects on tumor were gradeded according to the criteria formulated by WHO. The curative effects and adverse reactions were assessed and the time of disease progression was calculated at least 2 cycles after chemotherapy. Results The efficacy rate was 55.26%, 60. 00% and 53. 13% respectively,and statistical analysis showed no significant difference(P ＞ 0.05). The time of disease progress was 23,30 and 24 weeks respectively, there were significant differences (P ＜ 0.05). The major side effect were neutropenia, gastrointestinal reactions, and were able to be tolerated without a chemotherapy-related death. Conclusion Three regimens of chemotherapies had better curative effects and mild side effects for elderly patients with advanced gastric cancer,and could improve the quality of life of the patients,and are worth of clinical promotion.

Objective To investigate the effect of the serum of patients with hepatopulmonary syndrome on the myogenic differentiation,proliferation and migration of human lung fibroblasts.Methods The human lung fibroblasts were seeded in plates or flasks and randomly divided into 2 groups (n =31each) using a random number table:serum of patients with hepato-pulmonary syndrome group and serum of healthy volunteer group.The human lung fibroblasts were incubated in the DMEM culture medium containing 10％ serum of patients with hepatopulmonary syndrome or in the DMEM culture medium containing 10％ serum of healthy volunteers.At 24,48 and 72 h of incubation (T1-T3),the expression of smooth muscle-α-actin (SM-α-actin) and smooth muscle myosin heavy chain (SM-MHC) in human lung fibroblasts was determined by Western blot,the proliferation of the human lung fibroblasts was determined using 3H-TDR incorporation assay,and the migration of the human lung fibroblasts was determined by Transwell chamber assay.Results Compared with serum of healthy volunteer group,the expression of SM-α-actin and SM-MHC in human lung fibroblasts was significantly up-regulated at each time point,and the proliferation and migration of the cells were significantly enhanced at T2,3 in serum of patients with hepatopulmonary syndrome group (P＜0.05).Compared with the value at T1,the expression of SM-α-actin and SM-MHC in human lung fibroblasts was significantly up-regulated,and the proliferation and migration of the cells were significantly enhanced at T2,3in serum of patients with hepatopulmonary syndrome group (P＜0.05).Compared with the value at T2,the expression of SM-α-actin and SM-MHC in human lung fibroblasts was significantly up-regulated,and the proliferation and migration of the cells were significantly enhanced at T3 in serum of patients with hepatopulmonary syndrome group (P＜0.05).Conclusion The serum of patients with hepatopulmonary syndrome can promote the myogenic differentiation,proliferation and migration of human lung fibroblasts.

Objective To investigate 4 variants single nucleotide polymorphisms (SNPs) of 5-lipoxygenase-activating protein(ALOX5AP) in lipoxygenase pathway and in cytochrome P450 pathway as susceptibility genes for stroke in a southeastern Chinese population,and evaluate the associations between susceptibility genes and cerebral infarction,to find whether gene-gene interactions increase the risk of cerebral infarction.Methods By case-control study,two hundred and ninety-two patients with cerebral infarction and 259 healthy control subjects were included.Eight variants in 5 candidate genes were examined for stroke risk,including the SG13S32 (rs9551963),SG13S42 (rs4769060),SG13S89 (rs4769874),and SG13Sl14 (rs10507391) variants of the ALOX5AP gene,the G860A (rs751141) variant of the soluble epoxide hydrolase (EPHX2) gene,the A1075C (rs1057910) variant of the CYP2C9 *2 gene,the C430T (rs1799853) variant of the CYP2C9* 3 gene,and the A6986G (rs776746) variant of the CYP3A5 gene.Gene-gene interactions were explored using generalized multifactor dimensionality reduction (GMDR)methods.Results There were no statistically significant differences in the frequencies of the genotypes of the 8 candidate genes.The GMDR analysis showed a significant gene-gene interaction between SG13S114 and A6986G,with scores of 10 for cross-validation consistency and 9 for the sign test (P =0.011).These genegene interactions predicted a significantly higher risk of cerebral infarction (adjusted for age,hypertension,and diabetes mellitus;OR =1.804,95％ CI 1.180-2.759,P =0.006).Conclusions A two-loci gene interaction confers significantly higher risk for cerebral infarction.The combinational analysis used in this study may be helpful in the elucidation of genetic risk factors for common and complex diseases.

Objective To investigate the correlation between prostacyclin synthase (prostaglandin I2 synthase, PGIS) gene rs5602 single nucleotide polymorphism and ischemia stroke in Chinese Han population. Methods The patients with ischemia stroke and healthy controls in Chinese Han population were enroled. Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI TOF MS) was used to detect the rs5602 polymorphism. Results A total of 297 patients with ischemic stroke (male 177 and female 120) and 291 healthy controls (male 165, female 126) over the same period were enroled. The frequencies of TT genotype (31. 1% vs. 43. 6% ; χ2 = 5. 773, P = 0. 016) and T alele (56. 8% vs. 65. 8% ; χ2 = 5. 793, P = 0. 016) in the male patients with ischemic stroke were significantly lower than those in the male healthy controls. Multivariate logistic regression analysis showed that the rs5602 TT genotype was a protective factor for ischemic stroke in male (odds ratio 0. 260, 95% confidence interval 0. 118-0. 570; P = 0. 001). Conclusions PGIS gene rs5602 polymorphism is associated with ischemic stroke in male in Chinese Han population.

Objective To investigate flow patterns at carotid bifurcation in vivo by combining computational fluid dynamics(CFD)and MR angiography imaging.Methods Seven subjects underwent contrast-enhanced MR angiography of carotid artery in Siemens 3.0 T MR.Flow patterns of the carotid artery bifurcation were calculated and visualized by combining MR vascular imaging post-processing and CFD. Results The flow patterns of the carotid bifurcations in 7 subjects were varied with different phases of a cardiac cycle.The turbulent flow and back flow occurred at bifurcation and proximal of internal carotid artery (ICA)and external carotid artery(ECA),their occurrence and conformation were varied with different phase of a cardiac cycle.The turbulent flow and back flow faded out quickly when the blood flow to the distal of ICA and ECA.Conclusion CFD combined with MR angiography can be utilized to visualize the cyclical change of flow patterns of carotid bifurcation with different phases of a cardiac cycle.