Objective To develop a multidimensional self-report health measurement scale for accurate evaluation of health status in Chinese adults. Methods Delphi method was used to select health measurements. Item database was set up based on available questionnaires. A total of 1858 individuals from Beijing, Hebei ,Tianjin, Shanxi and other provinces of China received field pretest. Results A self-report health assessment tool with 90 items was developed, Cronbach a coefficient of which was 0. 669 to 0. 917,split-half reliability 0. 572 to 0. 877, and test-retest reliability 0. 693 to 0. 896. Six factors from exploratory factor analysis accounted for 71.732% total variance,with the common factor＞0.4. Confirmatory factor analysis showed good fit index and construct validity. Conclusion The newly developed self-rated health measurement scale ,which involves six dimensions and 90 items ,shows good reliability and validity.

Objective:To assess the value of nalbuphine intravenously injected before epidural labor analgesia in inhibiting uterine contraction pain in primiparae.Methods:A total of 140 expectant primiparae who were suitable and willing to receive epidural labor analgesia with a singleton fetus in vertex presentation, aged 20-40 yr, of American Society of Anesthesiologists Physical Status classification Ⅰ-Ⅱ, with their cervical dilation of 2-3 cm, were divided into nalbuphine group (N group) and routine control group (C group), with 70 cases in each group.Group N received intravenous injection of nalbuphine 0.1 mg/kg (in normal saline 5 ml) at 10 min before epidural puncture, while group C received intravenous injection of the equal volume of normal saline at 10 min before epidural puncture.The epidural puncture-related items including the intensity of pain (Numeric Rating Scale [NRS] scores) and degree of sedation-agitation (Riker sedation agitation scores) during uterine contraction, duration of epidural procedure, parturients′ satisfaction with epidural puncture, successful epidural catheterization at first attempt and complications (nerve paraesthesia and inadvertent intravascular punctures) were recorded.Results:Compared with group C, the NRS scores and Riker scores for uterine contraction pain were significantly decreased during epidural procedure ( P<0.05), with NRS score <6 and Riker sedation agitation scores of 4, the duration of epidural puncture was shortened, the success rate of epidural puncture at first attempt was increased(51%/70%), and the incidence of nerve paraesthesia and inadvertent intravascular puncture was decreased(17%/6%, 14%/4%), and the parturients′ satisfaction with epidural puncture was increased in group N ( P<0.05). Conclusions:Nalbuphine 0.1 mg/kg intravenously injected before epidural labor analgesia can safely and effectively reduce uterine contraction pain without limb agitation, which is helpful in implementating epidural puncture in primiparae.

On January 22, 2020, China National Center for Bioinformation (CNCB) released the 2019 Novel Coronavirus Resource (2019nCoVR), an open-access information resource for the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). 2019nCoVR features a comprehensive integra-tion of sequence and clinical information for all publicly available SARS-CoV-2 isolates, which are manually curated with value-added annotations and quality evaluated by an automated in-house pipeline. Of particular note, 2019nCoVR offers systematic analyses to generate a dynamic landscape of SARS-CoV-2 genomic variations at a global scale. It provides all identified variants and their detailed statistics for each virus isolate, and congregates the quality score, functional annotation,and population frequency for each variant. Spatiotemporal change for each variant can be visualized and historical viral haplotype network maps for the course of the outbreak are also generated based on all complete and high-quality genomes available. Moreover, 2019nCoVR provides a full collection of SARS-CoV-2 relevant literature on the coronavirus disease 2019 (COVID-19), including published papers from PubMed as well as preprints from services such as bioRxiv and medRxiv through Europe PMC. Furthermore, by linking with relevant databases in CNCB, 2019nCoVR offers data submission services for raw sequence reads and assembled genomes, and data sharing with NCBI. Collectively, SARS-CoV-2 is updated daily to collect the latest information on genome sequences, variants, hap-lotypes, and literature for a timely reflection, making 2019nCoVR a valuable resource for the global research community. 2019nCoVR is accessible at https://bigd.big.ac.cn/ncov/.

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.