Transcriptomic analysis of codon usage patterns and gene expression characteristics in leafy spurge.

Leafy spurge (Euphorbia esula) is an important herb and potential energy source with medicinal value. Codon usage bias (CUB) is a static feature of genes and genomes that results from adaptation and selection during long-term evolution and facilitates molecular breeding in transgenic plants. Here, we used TransDecoder to identify candidate coding regions from the downloaded leafy spurge transcriptome and generate coding region annotation files based on reference genomes.

Extremal values of VDB topological indices over F-benzenoids with equal number of edges.

The utilization of molecular structure topological indices is currently a standing operating procedure in the structure-property relations research, especially in QSPR/QSAR study. In the past several year, generous molecular topological indices related to some chemical and physical properties of chemical compounds were put forward. Among these topological indices, the VDB topological indices rely only on the vertex degree of chemical molecular graphs.

Association of Type D personality and mild cognitive impairment in patients with hypertension.

Objective: The aim of this study was to evaluate the association between Type D personality and mild cognitive impairment (MCI) in patients with hypertension.

Methods: A total of 324 subjects with hypertension were included in the study. All of them completed questionnaires on demographic characteristics, Type D personality Scale, Montreal Cognitive Assessment (MoCA), Beck Anxiety Inventory (BAI) and Beck Depression Inventory (BDI).

Cumulative effect of risk and protective factors on unintentional injury for Chinese rural children: a nested case-control study.

Background: Childhood unintentional injuries are the leading cause of death and disability for children. Despite the risk factors that lead to the occurrence of injuries have been identified, the relationship between cumulative effect of risk/protective factors and unintentional injuries is unclear. The aim of this study was to explore the cumulative effect of risk factors as well as protective factors and their interaction on unintentional injury to rural children.

Study of the relationship between the lifestyle of residents residing in fluorosis endemic areas and adult skeletal fluorosis.

The relationship between fluorosis and the lifestyle of adult residents of areas in which fluorosis is endemic was evaluated. A cross-sectional and case-control analysis was performed to study 289 villagers living in fluorosis endemic areas who drank the local water. Subjects were divided into skeletal fluorosis and non-skeletal fluorosis groups according to whether they were afflicted with skeletal fluorosis.

[The risk factors of chronic obstructive pulmonary disease in Heilongjiang province].

Objective: To study the prevalence and risk factors of chronic obstructive pulmonary disease (COPD) in Heilongjiang province.

Methods: This was a population-based and cross-sectional survey on prevalence of COPD in Heilongjiang province from September 2013 to March 2014. The stratified-cluster-random sampling method was performed to collect the data from 4 478 people in 5 cities (Jixi, Daqing, Suihua, Yichun and Jiagedaqi).