Objective: The Chinese Pharmacopoeia (2015) includes 584 plant medicines, of which 284 also contain high quality subsets, so called “Daodi” components, where Daodi denotes superior clinical properties compared to non-Daodi counterparts despite being sourced from the same species. Commercial and clinical drivers of selection for Daodi have been described elsewhere. Our objective is to investigate the overall composition of Daodi to determine in what ways medicines with Daodi as a whole differ from the other plants of the Chinese Pharmacopoeia. A further objective is to characterise the Chinese Pharmacopoeia and Daodi in terms of the plant species including their traits and distribution. Methods: We used trait analysis to identify whether Daodi species were significantly different from the remaining Chinese Pharmacopoeia plant species in any traits. We used biogeographic methods and an existing classification of Daodi into 10 regions to identify spatial patterns amongst the species. Regression and binomial analyses were used to test for over- and under-use of plant families and endemic species. Preferences for lineages were visualized using phylogenetic mapping. Results: We found that Daodi species (species with any Daodi subset) were more likely to be roots that are “hot” or “warm” and less likely to be “oxic” according to traditional Chinese medicine (TCM) concepts. Roots were over-represented in the Bei region, and whole plants over-represented in Guang. Both the Chinese Pharmacopoeia and Daodi indicated preferences for families not common in previously studied ethnopharmacopoeias, and fewer endemic species were represented than expected by chance. Conclusion: Using the phylogenetic and biogeographical methods, we highlighted patterns of plant use, and the biological characters of Daodi medicinal plants. Our study points towards cultural preferences in need of scientific explanation.

To guide and encourage medical students to do grass-roots work,we need to strengthen the functions of the government work and employment guidance of medical colleges.Also,we have to improve the employment system of primary health care units and help students change their concepts about employment.

Objective: To describe the status of the basic public health service in township health centers, analyze the resource allocation which influences the supply of basic public health service. Methods: The data is based on monitoring project surveys collected by the health statistical information center, Spss13.0 and Excellare applied to make descriptive statistic analysis. Results:Overall, basic public health service has been carried out well in each area, but there are differences among the application rates of different basic public health service items; basic public health service can be effected by the level of basic public health input and the number of public health workers.

As an important resource for a country to participate in international high-tech competition in the bio-pharma-ceutical field, clinical research resources play a key role in the multi-center clinical research and the translation from basic research to clinical practice.China has a large population and diverse diseases, but chinical disease research relevant policies and regulations are imperfect.In contrast, the United States has perfect laws and regulations related to clinical research.By comparatively analyzing the disease resource, platform support and regulatory environment between China and the U.S., this article offers suggestions on the development of clinical research resources so as to facilitate the clinical research in China.

In October 2015 ,the White House issued a New Strategy for American Innovation which was also concerned with precision medicine initiative , BRAIN initiative and health care .This paper introduces the background , main content and developments of this new strategy ,hoping to facilitate the development of healthcare in China .

Objective To research the effect of poria cocos on the immune function of mice.Methods We filled the stomaches of mice with 100% water extract of poria cocos regularly and tested the ability of antibody-forming cells of mice,specific rosette forming cells(SRFC) and serum immunoglobulin(IgG).Results The immune function of poria cocos group improved remarkably compared with control group(P

Objective This study is undertaken to evaluate the changes of serum cytokine levels in different stages of collagen induced arthritis(CIA)rats,to search for the specific proteins related with rheuma- toid arthritis(RA)pathogenesis and inflammation,and to explore the mechanism of RA pathogenesis.Methods Rat cytokine antibody array coated with 19 specific cytokine antibodies was used to examine serum samples at peak and late stage of CIA rats,and were compared to normal cytokine levels.At the same time,ELISA assay for serum TNF-?production was used to verify the array results.Results Among the target cytokines,10 up- regulating cytokines were kept in high expression in different phases of disease,while 1 showed significant change only at the peak of disease.There was no downregnlating cytokines in the results.Serum TNF-?assay results were consistent to the array results.Conclusion Cytokines show different expression in CIA at differ- ent stages,and specific cytokines can be used as the candidates to further study of the RA pathogenesis.This study also provides molecular makers for early diagnosis.

Objective: To explore the impact of arsenic on cholesterol efflux and the expression of ATP-binding cassette, sub-family A, member 1 ( ABCA1 ), ATP-binding cassette transporter G1 ( ABCG1 ), and scavenger receptor class B member I ( SRBI ) in macrophages, so as to provide the evidence for the mechanism of arsenic induced atherosclerosis. Methods: The human myeloid leukemia mononuclear cells ( THP-1 ), induced by phorbol myristate acetate, and mouse primary macrophages were treated with 0, 0.625, 1.25, 2.5 and 5 μmol/L NaAsO2 for 48 hours. Then the cells treated with 2.5 μmol/L NaAsO2 were changed to arsenic free mediums for 48 hours and collected every 12 hours to analyze the time effect of arsenic. The expression levels of ABCA1, ABCG1 and SRBI were determined by quantitative polymerase chain reaction and western blotting. Cholesterol efflux rates were measured by 3H isotope tracer. Results: Arsenic significantly down-regulated the expression levels of ABCA1 and ABCG1, and cholesterol efflux in a dose-dependent manner. The levels of ABCA1 mRNA decreased by 69% and 72%, the levels of ABCG1 mRNA decreased by 42% and 34%, and the rate of cholesterol efflux decreased by 55% and 59% in THP-1 and mouse primary macrophages cells treated with 5 μmol/L NaAsO2 ( all P<0.05 ). Arsenic had no significant effect on SRBI expression ( all P>0.05 ). Arsenic inhibited ABCA1 expression and cholesterol efflux in THP-1 in a time-dependent manner. Compared with cells before the exposure of arsenic, the level of ABCA1 mRNA and the rate of cholesterol efflux in THP-1 bottomed at 48 hours by 43% and 42%, and gradually recovered when arsenic was removed. Conclusions Arsenic inhibits cholesterol efflux by down-regulating the expression of ABCA1 and ABCG1 in macrophages.

Objective To systematically review the safety and effectiveness of 6% hydroxyethyl starch (HES) 130/0.4 and crystalloid solution for the patients undergoing elective surgery .Methods We searched the Medline , EMBASE , CENTRAL , CNKI and Wanfang databases for randomized controlled trials involving comparison of the safety and effectiveness of 6% HES 130/0.4 and crystalloid solution for the patients undergoing elective surgery . The major evaluation indexes included intraoperative blood loss , postoperative incidence of dialysis and intraoperative incidence of hypotension . The secondary evaluation indexes included mortality , perioperative incidence of nausea and vomiting , coagulation function , renal function and incidence of adverse events .The two reviewers independently screened ,evaluated and extracted the data .Meta-analysis was performed using the Cochrane Collaboration’s RevMan 5.2 software .Results Ten trials involving 693 patients were included in our meta-analysis .Eight trials were in English and 2 trials were in Chinese .Comparison of the safety and effectiveness of 6% HES 130/0.4 and balanced solution was conducted in 7 trials (498 patients in total) ,and the results showed that 6% HES 130/0.4 reduced the intraoperative incidence of hypotension (OR 0.31 ,95% CI 0.13-0.75 ) and perioperative incidence of nausea and vomiting , (OR 0.08 , 95% CI 0.01 to 0.67 ) in the patients undergoing spinal anesthesia ( P< 0.05 );there was no significant difference in the intraoperative incidence of hypotension ,perioperative incidence of nausea and vomiting ,mortality ,and intraoperative blood loss under general anesthesia or combined spinal-epidural anesthesia between the two solution groups ( P> 0.05 );heterogeneity was found in the urine output under general anesthesia ( P<0.000 01 ,I2 =93% ) .The safety and effectiveness were compared between 6% HES 130/0.4 and normal saline in 3 trials (195 patients in total) and the results showed that there was no significant difference in the intraoperative blood loss ,intraoperative incidence of hypotension ,perioperative incidence of nausea and vomiting ,coagulation function ,renal function ,and incidence of adverse events between the two solution groups ( P> 0.05 ) .Conclusion 6% HES 130/0.4 is safe and effective when applied for the patients undergoing elective surgery .

Objective To investigate the feasibility and promising applications of percutaneous transhepatic lymphosonography in detecting sentinel lymph nodes(SLNs).Methods Twenty five rabbits with VX2 tumor were included in this study.0.05 ml SonoVue was injected into the liver parenchyma at 12,3,6,9 points around the VX2 tumor.The situation of contrast-enhanced lymph-vessel emited from injected point and lymph nodes in hepatic portal or around tumor was observed,and then the position of the lymph nodes were detected with the help of the mark on the surface of the portal vein,caput pancreatis,collum vesicae biliaris.Methylene blue (MB) was injected in the same way as above.The injected points were massaged for five minutes,and then executed the experimental rabbits.The lymph nodes enhanced and all the lymph node dyed or not were taked out for recorded and pathologic examination.Results 34 SLNs were conformed by operation and pathological diagnosis in all the rabbits.All SLNs were confirmed pathologically,28 lymph nodes which were checked out by percutaneous transhepatic lymphosonography were all SLNs.In all the 31 lymph nodes which were checked out by MB,25 lymph nodes were SLNs and the rest were the second degree lymph nodes.The detection rate of percutaneous transhepatic lymphosonography (82.4％) and the MB (91.2％) showed no significant difference(P =0.169).There were 6 SLNs enhanced uniformitily in which 2 SLNs encroach by cancer cell and 22 enhanced asymmetrically in which 21 SLNs encroach by cancer cell.The sensitivity,specificity and accuracy of percutaneous transhepatic lymphosonography to detcect the SLNs benign or malignancy was 95.5％ (21/28),66.7％(4/6) and 89.3 ％ (25/28).Conclusions Percutaneous transhepatic lymphosonography is a reliable and noninvasive method to detect and estimate the SLNs of hepatic cancer.