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Adaptation to water level variation: Responses of a floating-leaved macrophyte Nymphoides peltata to terrestrial habitats

A straightforward experimental approach was carried out to study the adaptation responses of a typical floating-leaved aquatic plant Nymphoides peltata to changes in water availability. N. peltata grown in terrestrial habitat was approximately 88.77% lower in total biomass, 62.75% higher in root biomass allocation, 80.9% higher in root-shoot ratio, and 54.5% longer in leaf...

Adaptation to water level variation: Responses of a floating-leaved macrophyte Nymphoides peltata to terrestrial habitats

A straightforward experimental approach was carried out to study the adaptation responses of a typical floating-leaved aquatic plant Nymphoides peltata to changes in water availability. N. peltata grown in terrestrial habitat was approximately 88.77% lower in total biomass, 62.75% higher in root biomass allocation, 80.9% higher in root-shoot ratio, and 54.5% longer in leaf...

Numerical Investigation on Head and Brain Injuries Caused by Windshield Impact on Riders Using Electric Self-Balancing Scooters

48201, USA 5Institute of Solid Mechanics, Beihang University, Beijing 100191, China Correspondence should be addressed to Jun Xu; nc.ude.aaub@uxnuj Received 17 August 2017; Revised 12 January 2018

Numerical Investigation on Head and Brain Injuries Caused by Windshield Impact on Riders Using Electric Self-Balancing Scooters

48201, USA 5Institute of Solid Mechanics, Beihang University, Beijing 100191, China Correspondence should be addressed to Jun Xu; nc.ude.aaub@uxnuj Received 17 August 2017; Revised 12 January 2018

Improving the power for detecting overlapping genes from multiple DNA microarray-derived gene lists

Background In DNA microarray gene expression profiling studies, a fundamental task is to extract statistically significant genes that meet certain research hypothesis. Currently, Venn diagram is a frequently used method for identifying overlapping genes that meet the investigator's research hypotheses. However this simple operation of intersecting multiple gene lists, known as...

Construction of siRNA/miRNA expression vectors based on a one-step PCR process

Background RNA interference (RNAi) has become a powerful means for silencing target gene expression in mammalian cells and is envisioned to be useful in therapeutic approaches to human disease. In recent years, high-throughput, genome-wide screening of siRNA/miRNA libraries has emerged as a desirable approach. Current methods for constructing siRNA/miRNA expression vectors...

Milk consumption in relation to incidence of nasopharyngeal carcinoma in 48 countries/regions

Background Decreasing trends of nasopharyngeal carcinoma (NPC) incidence have been consistently reported in endemic populations but the etiology of NPC remains unclear. The objective of our study was to assess the international and local (Hong Kong) correlations of milk and dairy products per capita consumption with NPC incidence. Methods We conducted an ecological study in 48...

Effects of reduced β2-glycoprotein I on the expression of aortic matrix metalloproteinases and tissue inhibitor matrix metalloproteinases in diabetic mice

Background Reduced β2-glycoprotein I (reduced β2GP I), which has free sulfhydryl groups, is present in plasma and serum; it can protect vascular endothelial cells from damage due to oxidative stress in vitro. We investigated the effects of reduced β2GP I on the expression of various matrix metalloproteinases (MMPs) and tissue inhibitors of matrix metalloproteinases (TIMPs) in the...

Identification and characterization of microRNAs in Clonorchis sinensis of human health significance

Background Clonorchis sinensis is a zoonotic parasite causing clonorchiasis-associated human disease such as biliary calculi, cholecystitis, liver cirrhosis, and it is currently classified as carcinogenic to humans for cholangiocarcinoma. MicroRNAs (miRNAs) are non-coding, regulating small RNA molecules which are essential for the complex life cycles of parasites and are involved...

Two members of TaRLK family confer powdery mildew resistance in common wheat

. Competing interests The authors declare that they have no competing interests. Authors’ contributions XEW, TTC and BQ designed the experiments. TTC, Jun Xu, WTW and CD performed the experiments. TTC, Jin

Prevalence and characterization of hepatitis B and C virus infections in a needle-sharing population in Northern China

Background The epidemiologies of hepatitis C virus (HCV) and hepatitis B virus (HBV) infections in specific populations in certain areas of China are poorly understood. A pilot survey of HCV/HBV infections was carried out in villages in Kuancheng County, Heben Province, where injection of sodium benzoate or amphetamines using shared needles has been a common practice. The aims of...

Lifestyle and health-related quality of life: A cross-sectional study among civil servants in China

BackgroundHealth-related quality of life (HRQoL) has been increasingly acknowledged as a valid and appropriate indicator of public health and chronic morbidity. However, limited research was conducted among Chinese civil servants owing to the different lifestyle. The aim of the study was to evaluate the HRQoL among Chinese civil servants and to identify factors might be...

Self-rated health of population in southern China: association with socio-demographic characteristics measured with multiple-item self-rated health measurement scale

Background Self-rated health (SRH) status has been increasingly acknowledged as a valid and appropriate indicator of public health and chronic morbidity. However, limited research was conducted in China due to the different culture and socioeconomic situations. The aim of this study is to assess the SRH status of the population in Southern China using multiple-item SRH...

A retrospective study of microscopic polyangiitis patients presenting with pulmonary fibrosis in China

Zuo jun Xu 1 0 1 Shuaifuyuan Street, Beijing , Dongcheng District 100730 , China 1 Department of Respiratory Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking

Whole lung lavage combined with Granulocyte-macrophage colony stimulating factor inhalation for an adult case of refractory pulmonary alveolar proteinosis

feng Sun 0 Yan xun Wang Zuo jun Xu Hui Huang 0 Equal contributors Department of Respiratory Medicine, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical

Clinical spectrum of intrathoracic Castleman disease: a retrospective analysis of 48 cases in a single Chinese hospital

Background Thorax is the common place to develop Castleman disease (CD), but there is no systemic clinical analysis for intrathoracic CD. Methods We conducted a retrospective analysis of 48 intrathoracic CD patients with definite pathological diagnosis who were hospitalized between 1992 and 2012 in a Chinese tertiary referral hospital. Results The study included 16 cases with...

Leveraging syntactic and semantic graph kernels to extract pharmacokinetic drug drug interactions from biomedical literature

Background Information about drug–drug interactions (DDIs) supported by scientific evidence is crucial for establishing computational knowledge bases for applications like pharmacovigilance. Since new reports of DDIs are rapidly accumulating in the scientific literature, text-mining techniques for automatic DDI extraction are critical. We propose a novel approach for automated...

Comparative analysis of microRNA profiles between adult Ascaris lumbricoides and Ascaris suum

Background The parasitic nematodes Ascaris lumbricoides and A. suum are of great public health and economic significance, and the two taxa were proposed to represent a single species. miRNAs are known with functions of gene regulations at post-transcriptional level. Results We herein compared the miRNA profiles of A. lumbricoides and A. suum female adults by Solexa deep...

Chlamydia felis exposure in companion dogs and cats in Lanzhou, China: a public health concern

Background Chlamydiaceae is a family of obligate intracellular pathogens with a worldwide distribution in many animal species, including humans. No information exists on the prevalence of Chlamydia felis infections in cats and dogs in Lanzhou, the geographical center of China. The aim of this study was to carry out a census of cats and dogs in Lanzhou and document the...