Objective To investigate the drug resistance of bacteria clinically isolated from Yuyao people's hospital and its relationship with antibiotic consumption, in order to provide basis for rational use of antibiotics in clinic.MethodsA total of 3178 strains of bacteria were detected in our hospital from the third quarter of 2015 to the second quarter of 2016.The drug resistance of bacteria, the consumption of antibacterial agents in each quarter, and their relationships were analyzed.ResultsThe major isolated bacteria was gram-negative bacteria, among which constituent ratio of Escherichia coli, Klebsiella pneumoniae, Acinetobacter baumannii and Pseudomonas aeruginosa ranked the top 4.Gram-negative bacteria's resistance rates of several antibiotics were positively correlated with the utility rate of quinolones, and also had a different degree of positive correlation with the use of beta lactamase/inhibitor, aminoglycosides and carbapenems.Staphylococcus were the mainly gram positive bacteria, whose resistance rates to penicillin, ciprofloxacin, levofloxacin and erythromycin were positively correlated with the usage of the same type of antibiotics.ConclusionBacterial resistance rates are closely associated with the consumption of antimicrobials.Selecting antibacterial agents reasonably according to the results of drug susceptibility test is important to control the drug resistance of bacterial.

Some of the recombinant protein therapeutics with short half-life requires high frequent dose or injection, which results in poor patient compliance. This challenge has prompted the development of long-acting recombinant proteins in recent years. Four strategies and methods, including chemical modification, protein engineering, fusion proteins and protein glycosylation are used to modify protein molecule and finally obtain improved pharmacokinetics (PK) properties. This article reviews the four strategies of half-life extension and presents a detailed list of long-acting therapeutics on US, EU and China markets.

To unravel the genetic mechanisms of disease and physiological traits, it requires comprehensive sequencing analysis of large sample size in Chinese populations. Here, we report the primary results of the Chinese Academy of Sciences Precision Medicine Initiative (CASPMI) project launched by the Chinese Academy of Sciences, including the de novo assembly of a northern Han reference genome (NH1.0) and whole genome analyses of 597 healthy people coming from most areas in China. Given the two existing reference genomes for Han Chinese (YH and HX1) were both from the south, we constructed NH1.0, a new reference genome from a northern individual, by combining the sequencing strategies of PacBio, 10× Genomics, and Bionano mapping. Using this integrated approach, we obtained an N50 scaffold size of 46.63 Mb for the NH1.0 genome and performed a comparative genome analysis of NH1.0 with YH and HX1. In order to generate a genomic variation map of Chinese populations, we performed the whole-genome sequencing of 597 participants and identified 24.85 million (M) single nucleotide variants (SNVs), 3.85 M small indels, and 106,382 structural variations. In the association analysis with collected phenotypes, we found that the T allele of rs1549293 in KAT8 significantly correlated with the waist circumference in northern Han males. Moreover, significant genetic diversity in MTHFR, TCN2, FADS1, and FADS2, which associate with circulating folate, vitamin B12, or lipid metabolism, was observed between northerners and southerners. Especially, for the homocysteine-increasing allele of rs1801133 (MTHFR 677T), we hypothesize that there exists a "comfort" zone for a high frequency of 677T between latitudes of 35-45 degree North. Taken together, our results provide a high-quality northern Han reference genome and novel population-specific data sets of genetic variants for use in the personalized and precision medicine.