Objective To study the relationship among leptin, neuropeptide Y and plasma lipid in the patients with essential hypertension. Methods In 116 patients with essential hypertension (EH) and 26 healthy subjects, the plasma concentrations of leptin(LE), neuropeptide Y(NPY), total cholesterol(TC), triglyceride(TG) and high density lipoprotein cholesterol(HDL) were determined using RIA. Results The body mass index (BMI), plasma concentrations of TC, TG, NPY and LE were higher in the patients with EH than those in healthy subjects, and the HDL concentration was lower than that in control group (P

Along with the rapid development of globalization,the international medical aid enterprise is drawing more and more attention with its bright humanitarianism standpoint,non-national boundary,and non-political orientation characteristics.From the angle of medical ethics,this article encloses ethical issues and contradictions in realistic international medical service aid,reflects on relevant ethical principles,and comes up with feasible countermeasures to solve current problems.

BACKGROUND: Nerve growth factor (NGF) and myelin-associated glycoprotein (MAG) can promote the repair of peripheral nerve. However, increasing the expression of NGF and MAG in the injured peripheral nerve by transgene technology has not been reported.OBJECTIVE: To investigate the expression of NGF and MAG after adenovirus (Ad) mediated transfection in the injured sciatic nerve in rats.METHODS: Forty Sprague-Dawley rats were randomly divided into normal, model, Ad, NGF and NGF-MAG groups. Sciatic nerve injury models were established in the latter four groups by cutting and suturing the right sciatic nerve. Afterwards, the rats in each group were subject to the intramuscular injection of normal saline, normal saline, Ad (1×108 PFU), Ad-NGF (1×108 PFU), and Ad-NGF-MAG (1×108 PFU), respectively, once every 2 days, for consecutive three times.RESULTS AND CONCLUSION: The expression level of NGF in the rat sciatic nerve in the Ad and normal groups was significantly higher than that in the NGF and NGF-MAG groups (P < 0.05). Compared with the Ad, NGF and normal groups, the expression level of MAG in the NGF-MAG group was significantly increased (P < 0.05). To conclude, the Ad-mediated NGF and MAG after double gene transfection were expressed effectively in the injured sciatic nerve in rats.

OBJECTIVETo study the clinical effects of three different root canal preparations on endodontic interappointment pain (EIAP) among the elderly.

METHODSIn this study, 292 teeth with acute or chronic pulpitis or apical periodontitis were collected from 265 individuals. The samples were divided randomly into three groups. Three root canal preparations were utilized for groups M, G, and H. Modified single length technique with Mtwo instrument was utilized in group M. Modified step-back technique with Gates-Glidden bur was employed in group G, and step-back technique with stainless steel H-files was employed in group H. The EIAP rates were observed and compared.

RESULTSThe rates of EIAP for groups M, G, and H were 5.81%, 6.38%, and 19.64%, respectively. A significant difference was observed between groups M and H (P < 0.012 5) as well as between groups G and H. However, no significant differences were observed between groups M and G (P > 0.012 5).

CONCLUSIONModified single length technique with Mtwo instrument and modified step-back technique with Gates-Glidden bur can reduce EIAP in the elderly.

Objective To evaluate the relationship between genetic polymorphism of transforming growth factor (TGF)-β1 and susceptibility of liver cirrhosis after hepatitis B virus infection in Chinese population. Methods CBM, VIP, CNKI, Wanfang technological periodical full-text databases and Pubmed from set up to July, 2013 were electronically searched to identify case-control studies on the relationship between genetic polymorphism of TGF-β1 promoter 509 site, co-don 869 site and liver cirrhosis after hepatitis B virus infection. The data were quantitatively analyzed by RevMan 5.1 soft-ware after assessing the quality of included studies. Results Six case-control studies were selected for Meta-analysis based on our inclusion and exclusion standards. The results of Meta-analysis showed that the pooled OR value for liver cir-rhosis among Chinese patients after hepatitis B virus infection with T allele of TGF-β1 gene at promoter 509 was 1.02 (95%CI:0.67-1.54), the pooled OR values for patients with TT and CT genotypes were 0.80 (95%CI:0.36-1.78). OR values for pa-tients with C allele of TGF-β1 gene at codon 869 was 1.05 (95%CI:0.69-1.62), the pooled OR values for patients with CC and CT genotypes were 0.98 (95%CI:0.48-2.00). No significant publication bias was found. Conclusion The genetic poly-morphism of TGF-β1 at promoter 509 and codon 869 showed no association with susceptibility of liver cirrhosis after hepati-tis B virus infection in Chinese population.

Objective:To compare drug policies in Brazil, Russia, India, China, and South Africa (BRICs), sum-marize the experiences from the process of implementation and provide some suggestions to further improve the national drug policy in China. Methods:National drug polices of BRICs and experiences in the implementation of essential medicine policy were summed up systematically by means of systematic review. Results:Essential medicine policy and popular phar-macy are implemented in Brazil;Pharmaceutical separation system is established in Russia;the mode of essential medicine policy in Delhi is typical in India;Government of South African focuses on procurement and distribution of drugs. Although drug policies of BRICs have their own characteristics, the objective is to increase the public access to low-cost, high-quality drugs. Conclusions:Despite the BRICs have attained some achievements, they still face serious challenges in deep-ening the health care reform. Hence, they need to explore the measures continuingly consisting with their national condi-tions, and learn from the experiences of developed countries to further consolidate and improve the national drug policies.

With the rapid development of new technologies and global trade and increasing collaboration among countries worldwide,public health has become a global issue.Global health,as a new discipline,has been drawing more attention from both academia and governments.The Belt and Road (B&R) Initiative,proposed by China in 2013,aims to promote trade and resource exchange,including education,research,and health issues,with over 60 countries in Asia,Africa,and Europe.The B&R Initiative provides good opportunities for involved countries to address health problems jointly as well.In response to the B&R Initiative and to promote international collaboration on global health issues,"The 2017 Belt and Road Initiative Global Health International Congress & 2017 Chinese Preventive Medicine Association-Chinese Society on Global Health Annual Meeting" was held on September 24-27,2017 in Xi'an,China.Thus far,this is the largest high-quality international conference held in China that focused on the B&R Initiative global health issues.This article summarizes the background,key sessions and topics covered during the congress,important events and highlights different perspectives of the B&R Initiative and global health by invited experts from China and abroad.The conference included 17 sessions (3 keynote speech forums and 10 scientific sessions,3 young scholar forums,and a research poster session) and about 100 speakers,around 40 of which were leading experts outside of China.All the major sessions were held in English.More than 40 leaders and experts of health sectors from 13 countries presented their work in the congress.Approximately 400 delegates from 29 countries attended the congress.Delegates had extensive discussions about global health related issues,future cooperation and development in global health.The congress fostered international exchange and collaboration.

Objective: To analyze the essential medicines supply of medical institutions at county-level in Shaanxi Province and to provide empirical evidences and suggestions to improve relevant policies. Methods:A strati-fied cluster random sampling method was used to choose the institution samples. A survey was conducted to study the supply of essential medicines in 2012. Indicators include the variety and amount of essential medicines procured, the medicine shortage condition, and the rate of winning the bid for essential medicine. Results:Essential medicines ac-counted for 69 . 1% of all medicines;and procurement of essential medicines accounted for 42 . 4% of all procurement spending on medicines. Of the top 25 chemical products of essential medicines, provincial supplementary medicines accounted for 33. 9%;and among the top 25 traditional Chinese medicines of essential medicines, the provincial sup-plementary medicines accounted for 51. 9%. All 27 medical institutions faced a shortage of medicines. There were 47 kinds of essential drugs in urgent need were out of bid. Conclusion:Essential medicine supply of medical institutions at county-level is in good condition;however, more attention needs to be paid to medicine shortage. We should take measurements to standardize the process of bidding for essential medicines and strengthen the management of medi-cine shortage in order to better meet patients’ needs.

Objective To investigate the clinical effects of levosimmentan combined with freeze-dried recombinant human brain natriuretic peptide in elderly patients with heart failure. Methods Eighty patients with heart failure diagnosed in our hospital from January 2015 to January 2018 were selected as subjects. According to the random number table prepared in Excel 2007,40 patients in the experimental group and the control group were given. For basic treatments such as diuresis,the experimental group was treated with levosimtan combined with lyophilized recombinant human brain natriuretic peptide,and the control group was treated with levosimtan and dobutamine. The left ventricle of the two groups before and after treatment was compared. End-diastolic period (LVEDD),left ventricular ejection fraction(LVEF),cardiac index(CI),stroke volume(SV),serum cystatin C (Cys-C),amino terminal brain natriuretic peptide precursor(NT-proBNP),mean arterial pressure(MAP), pulmonary capillary pressure(PCWP). Results Before treatment,the differences of LVEDD,LVEF,CI and SV levels between the experimental group and the control group were not statistically significant(P > 0.05). After treatment,the LVEDD of the experimental group was significantly lower than that of the control group(P < 0.05).The LVEF,CI and SV values in the experimental group were significantly higher than those in the control group (P < 0.05). There was no significant difference in serum Cys-C and NT-proBNP levels between the experimental group and the control group before treatment(P > 0.05). After treatment,the serum levels of Cys-C and NT-proB-NP in the experimental group were significantly lower than those in the control group(P < 0.05). Before treatment,the difference of MAP and PCWP levels between the experimental group and the control group was not statistically significant(P > 0.05). After treatment,the MAP and PCWP levels in the experimental group were significantly lower than those in the control group(P < 0.05). The incidence of adverse reactions in the experimental group was 10.00％ and the difference between the control group and the control group was not statistically significant(P > 0.05). Conclusions Levosimmentan combined with freeze-dried recombinant human brain natriuretic peptide in patients with senile heart failure can significantly improve cardiac function,reduce Cys-C,NT-proBNP levels,and improve hemodynamic parameters.

Objective:To evaluate the clinical efficacy and safety of fecal microbiota transplantation(FMT)for the treatment of chronic functional constipation in the elderly.Methods:A total of 33 elderly patients with chronic functional constipation were included and given three sessions of FMT.Changes in fecal characteristics, constipation, mood and quality of life in these patients were evaluated using the Bristol stool form scale(BSFS), the constipation assessment scale(CAS), patient assessment of constipation symptoms(PAC-SYM), the Zung self-rating anxiety scale(SAS), the Zung self-rating depression scale(SDS), and the patient assessment of constipation quality of life(PAC-QOL)before and 12 weeks after treatment.The clinical efficacy was based on comparison between pre-and post-treatment results for each patient.Results:Clear improvement was achieved in 33 patients 12 weeks after treatment, compared with before transplantation.Post-treatment scores of the constipation assessment scale and symptom self-assessment questionnaire for patients with constipation were(8.9±1.2)scores and(26.5±2.4)scores, respectively, significantly lower than pre-transplantation scores of(12.2±1.1)scores and(32.4±2.4)scores( t=15.034, 13.904, both P<0.001). Similarly, post-treatment scores were also lower than pre-transplantation levels for the self-rating anxiety scale[(50.4±8.4)scores vs.(57.5±9.0)scores, t=10.333, P<0.001], the self-rating depression scale[(50.6±8.4)% vs.(55.0±10.5)%, t=5.301, P<0.001], and self-assessment questionnaire for quality of life[(88.2±7.3)scores vs.(103.7±7.3)scores, t=23.300, P<0.001]. Conclusions:FMT can improve fecal characteristics and constipation symptoms, relieve anxiety and depression, improve the quality of life, and provide a new option for the treatment for elderly patients with chronic functional constipation.