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Xiao-Nan Li

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https://www.readbyqxmd.com/read/28819147/nitrogen-starvation-impacts-the-photosynthetic-performance-of-porphyridium-cruentum-as-revealed-by-chlorophyll-a-fluorescence
#1
Long-Sheng Zhao, Kang Li, Qian-Min Wang, Xiao-Yan Song, Hai-Nan Su, Bin-Bin Xie, Xi-Ying Zhang, Feng Huang, Xiu-Lan Chen, Bai-Cheng Zhou, Yu-Zhong Zhang
Nitrogen is one of the most important nutrients needed for plants and algae to survive, and the photosynthetic ability of algae is related to nitrogen abundance. Red algae are unique photosynthetic eukaryotic organisms in the evolution of algae, as they contain phycobilisomes (PBSs) on their thylakoid membranes. In this report, the in vivo chlorophyll (Chl) a fluorescence kinetics of nitrogen-starved Porphyridium cruentum were analyzed to determine the effects of nitrogen deficiency on photosynthetic performance using a multi-color pulse amplitude modulation (PAM) chlorophyll fluorometer...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28807091/rapid-and-sensitive-determination-of-13-components-in-a-traditional-chinese-medicine-formula-of-da-huang-gan-cao-decoction-by-high-performance-liquid-chromatography-coupled-with-triple-quadrupole-mass-spectrometry
#2
Jialin Qu, Nan Xiao, Hua Sui, Lina Liang, Jing Chen, Weiling Li, Dong Shang
Da-Huang-Gan-Cao decoction (DHGCD), which is a classic formula in traditional Chinese medicine, has been clinically used for the treatment of vomiting, constipation, pancreatitis, and cholelithiasis in China and Japan. In this study, a rapid and validated method using HPLC coupled with triple quadrupole MS was developed for the simultaneous determination of 13 components in DHGCD. Separation was performed on an XBridge BEH C18 column (50 × 2.1 mm, 2.5 μm) with a gradient elution of acetonitrile and 0.1% formic acid in water...
June 15, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28807032/liquid-chromatography-mass-spectrometry-based-profiling-of-phosphatidylcholine-and-phosphatidylethanolamine-in-the-plasma-and-liver-of-acetaminophen-induced-liver-injured-mice
#3
Ya-Nan Ming, Jing-Yi Zhang, Xiao-Lin Wang, Chun-Min Li, Si-Cong Ma, Zheng-Yang Wang, Xiao-Lin Liu, Xiao-Bo Li, Yi-Min Mao
BACKGROUND: Acetaminophen (APAP) overdose is one of the most common causes of acute liver failure in many countries. The aim of the study was to describe the profiling of phosphatidylcholine (PC) and phosphatidylethanolamine (PE) in the plasma and liver of Acetaminophen -induced liver injured mice. METHODS: A time course study was carried out using C57BL/6 mice after intraperitoneal administration of 300 mg/kg Acetaminophen 1 h, 3 h, 6 h, 12 h and 24 h. A high-throughput liquid chromatography mass spectrometry (LC-MS) lipidomic method was utilized to detect phosphatidylcholine and phosphatidylethanolamine species in the plasma and liver...
August 14, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28806569/metabolic-profiling-of-dehydrodiisoeugenol-using-xenobiotic-metabolomics
#4
Qian-Qian Lv, Xiao-Nan Yang, Dong-Mei Yan, Wei-Qing Liang, Hong-Ning Liu, Xiu-Wei Yang, Fei Li
Dehydrodiisoeugenol (DDIE), a representative and major benzofuran-type neolignan in Myristica fragrans Houtt., shows anti-inflammatory and anti-bacterial actions. In order to better understand its pharmacological properties, xenobiotic metabolomics was used to determine the metabolic map of DDIE and its influence on endogenous metabolites. Total thirteen metabolites of DDIE were identified through in vivo and in vitro metabolism, and seven of them were reported for the first time in the present study. The identity of DDIE metabolites was achieved by comparison of the MS/MS fragmentation pattern with DDIE using ultra-performance chromatography electrospray ionization quadrupole time-of-flight mass spectrometry (UPLC-ESI- QTOFMS)...
July 31, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28800105/anti-anxiety-effect-of-syringaresnol-4-o-%C3%AE-d-apiofuranosyl-1%C3%A2-2-%C3%AE-d-glucopyranoside-from-albizzia-julibrissin-durazz-leguminosae
#5
Jie Liu, Yue-Wei Lv, Jin-Li Shi, Xiao-Jie Ma, Yi Chen, Zhi-Quan Zheng, Sheng-Nan Wang, Jian-You Guo
Albizzia julibrissin Durazz, a Chinese Medicine, is commonly used for its anti-anxiety effects. (-)-syringaresnol-4-O-β-d-apiofuranosyl-(1→2)-β-d-glucopyranoside (SAG) is the main ingredient of Albizzia julibrissin Durazz. The present study investigated the anxiolytic effect and potential mechanisms on the HPA axis and monoaminergic systems of SAG on acute restraint-stressed rats. The anxiolytic effect of SAG was examined through an open field test and an elevated plus maze test. The concentration of CRF, ACTH, and CORT in plasma was examined by an enzyme-linked immune sorbent assay (ELISA) kit while neurotransmitters in the cerebral cortex and hippocampus of the brain were examined by High Performance Liquid Chromatography (HPLC)...
August 11, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28798770/diagnostic-value-of-neutrophil-to-lymphocyte-ratio-and-platelet-to-lymphocyte-ratio-in-crohn-s-disease
#6
Jue-Rong Feng, Xiao Qiu, Fan Wang, Peng-Fei Chen, Qian Gao, Ya-Nan Peng, Xue Lin, Qing Liu, Jing Liu, Qiu Zhao, Jin Li
The aim of this study is to investigate the diagnostic efficacy of neutrophil-to-lymphocyte ratio (NLR), neutrophil-to-monocyte ratio (NMR), lymphocyte-to-monocyte ratio (LMR), and platelet-to-lymphocyte ratio (PLR) in patients with Crohn's disease (CD) and non-CD controls. These ratios were all derived from complete blood counts. Two hundred and six participants including CD inpatients and non-CD controls were retrospectively enrolled. We found statistically higher NLR and PLR and lower LMR in CD patients than in non-CD controls (all P < 0...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28798142/accumulation-of-smooth-muscle-22%C3%AE-protein-accelerates-senescence-of-vascular-smooth-muscle-cells-via-stabilization-of-p53-in-vitro-and-in-vivo
#7
Sui-Bing Miao, Xiao-Li Xie, Ya-Juan Yin, Li-Li Zhao, Fan Zhang, Ya-Nan Shu, Rong Chen, Peng Chen, Li-Hua Dong, Yan-Ling Lin, Pin Lv, Dan-Dan Zhang, Xi Nie, Zhen-Ying Xue, Mei Han
OBJECTIVE: Smooth muscle (SM) 22α, an actin-binding protein, displays an upregulated expression as a marker during cellular senescence. However, the causal relationship between SM22α and senescence is poorly understood. This study aimed to investigate the role of SM22α in angiotensin II (Ang II)-induced senescence of vascular smooth muscle cells (VSMCs). APPROACH AND RESULTS: We prepared a model of VSMC senescence induced by Ang II and found that the expression of SM22α in VSMCs was increased in response to chronic Ang II treatment...
August 10, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28794495/tio2-nanoparticles-functionalized-by-pd-nanoparticles-for-gas-sensing-application-with-enhanced-butane-response-performances
#8
Nan Chen, Dongyang Deng, Yuxiu Li, Xu Liu, Xinxin Xing, Xuechun Xiao, Yude Wang
Pd functionalized TiO2 nanoparticles were synthesized by a facile hydrothermal method. The structure, morphology, surface chemical states and surface area were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and N2 adsorption-desorption isotherms, respectively. The as-synthesized pure and Pd functionalized TiO2 nanoparticles were used to fabricate indirect-heating gas sensor, and the gas-sensing characteristics towards butane were investigated...
August 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28774030/additive-manufacturing-of-biomedical-constructs-with-biomimetic-structural-organizations
#9
REVIEW
Xiao Li, Jiankang He, Weijie Zhang, Nan Jiang, Dichen Li
Additive manufacturing (AM), sometimes called three-dimensional (3D) printing, has attracted a lot of research interest and is presenting unprecedented opportunities in biomedical fields, because this technology enables the fabrication of biomedical constructs with great freedom and in high precision. An important strategy in AM of biomedical constructs is to mimic the structural organizations of natural biological organisms. This can be done by directly depositing cells and biomaterials, depositing biomaterial structures before seeding cells, or fabricating molds before casting biomaterials and cells...
November 9, 2016: Materials
https://www.readbyqxmd.com/read/28766379/risk-of-gastrointestinal-complications-in-breast-cancer-patients-treated-with-neratinib-a-meta-analysis
#10
Nan Jiang, Xiang-Wei Song, Jing-Jing Lin, Zhan-Yu Wang, Bei-Ning Zhang, Ao Li, Ru-Yi Yan, Hong-Feng Yan, Xiao-Yan Fu, Jin-Lian Zhou, Cheng-Lin Li, Yan Cui
BACKGROUNDS: Neratinib is a potent EGFR/HER2 kinase inhibitor. Gastrointestinal complications (i.e. diarrhea, vomiting and nausea) are the most common adverse events. In this study, we aimed to investigate (1) the overall incidence and relative risk (RR) of diarrhea, vomiting and nausea and (2) whether combination neratinib therapy increased the incidence of gastrointestinal complications versus neratinib alone. METHODS: Relevant studies were identified from the PubMed database, from abstracts presented at the American Society of Clinical Oncology annual conference and from the Web of Science database...
August 2, 2017: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/28758112/parental-genetic-variants-mthfr-677c-t-and-mtrr-66a-g-associated-differently-with-fetal-congenital-heart-defect
#11
Qian-Nan Guo, Hong-Dan Wang, Li-Zhen Tie, Tao Li, Hai Xiao, Jian-Gang Long, Shi-Xiu Liao
BACKGROUND: Congenital heart defect (CHD) is one of the most common birth defects in the world. The methylenetetrahydrofolate reductase (MTHFR) and methionine synthase reductase (MTRR) genes are two of the most important candidate genes for fetal CHD. However, the correlations between the two genes and fetal CHD were inconsistent in various reports. Therefore, this study is aimed to evaluate the parental effects of the two genes on fetal CHD via three genetic polymorphisms, MTHFR 677C>T (rs1801133), MTHFR 1298 A>C (rs1801131), and MTRR 66A>G (rs1801394)...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28756198/high-level-expression-of-%C3%AE-mannanase-rmman5a-in-pichia-pastoris-for-partially-hydrolyzed-guar-gum-production
#12
Yan-Xiao Li, Ping Yi, Nan-Nan Wang, Jun Liu, Xue-Qiang Liu, Qiao-Juan Yan, Zheng-Qiang Jiang
Partially hydrolyzed guar gum (PHGG), an important supplemental dietary fiber, has been used as food ingredient in many industries. In this study, a novel β-mannanase gene (RmMan5A) from Rhizomucor miehei was successfully expressed in Pichia pastoris and subjected for PHGG production. Enzyme activity of fermentation supernatant reached 85,200UmL(-1) after 168h high cell density fermentation. The purified RmMan5A exhibited the highest enzyme activity at pH 7.0 and 65°C. RmMan5A was then employed for guar gum hydrolysis and PHGG obtained demonstrated a weight-average molecular weight (Mw) of 2...
July 26, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28755569/the-impact-of-methods-to-handle-missing-data-on-the-estimated-prevalence-of-dementia-and-mild-cognitive-impairment-in-a-cross-sectional-study-including-non-responders
#13
Ji-Ping Tan, Nan Li, Xiao-Yang Lan, Shi-Ming Zhang, Bo Cui, Li-Xin Liu, Xin He, Lin Zeng, Li-Yuan Tau, Hua Zhang, Xiao-Xiao Wang, Lu-Ning Wang, Yi-Ming Zhao
OBJECTIVE: Although several statistical methods for adjusting for missing data have been developed and are widely applied in research, few studies have investigated these methods in adjusting for missingness in datasets that aim to estimate the prevalence of dementia. We attempted to develop a more feasible approach for handling missingness in a cross-sectional study among elderly. METHODS: Five methods of estimating prevalence, including stratified weighting (SW), inverse-probability weighting (IPW), hot deck imputation (HDI), ordinal logistic regression (OLR) and multiple imputation (MI), were applied to handle the missing data yielded by a dataset that include 2231 non-responders...
July 20, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28755077/processing-of-calamine-with-modern-analytical-techniques-processed-with-huanglian-decoction-and-sanhuang-decoction
#14
Xiang-Long Meng, Jun-Nan Ma, Xiao-Hui Guo, Bing-Chen Liu, Nan-Nan Cui, Kun Li, Shuo-Sheng Zhang
OBJECTIVE: To determine the pyrolysis characteristics of calcined and processed calamine, qualitatively and quantitatively compare the contents of related elements, morphology and functional groups of the pyrolysis products dried at different heating temperatures and explore the critical temperature and the optimal drying temperature for the process of calamine with Huanglian Decoction (HLD, ) and San Huang Decoction (SHD, ). METHODS: Pyrolysis products were prepared by programmable and constantly heating the calcined and processed calamine to or at different heating temperatures...
July 28, 2017: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/28750047/human-cytomegalovirus-ie1-downregulates-hes1-in-neural-progenitor-cells-as-a-potential-e3-ubiquitin-ligase
#15
Xi-Juan Liu, Bo Yang, Sheng-Nan Huang, Cong-Cong Wu, Xiao-Jun Li, Shuang Cheng, Xuan Jiang, Fei Hu, Ying-Zi Ming, Michael Nevels, William J Britt, Simon Rayner, Qiyi Tang, Wen-Bo Zeng, Fei Zhao, Min-Hua Luo
Congenital human cytomegalovirus (HCMV) infection is the leading cause of neurological disabilities in children worldwide, but the mechanisms underlying these disorders are far from well-defined. HCMV infection has been shown to dysregulate the Notch signaling pathway in human neural progenitor cells (NPCs). As an important downstream effector of Notch signaling, the transcriptional regulator Hairy and Enhancer of Split 1 (Hes1) is essential for governing NPC fate and fetal brain development. In the present study, we report that HCMV infection downregulates Hes1 protein levels in infected NPCs...
July 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28749179/analysis-of-microrna-expression-and-micronuclei-frequency-in-workers-exposed-to-vinyl-chloride-monomer-in-china
#16
Nan-Nan Feng, Yan Fang, Ya-Nan Zhang, Xiao-Wen Xu, Yong Li, Jin-Wei Wang, Yong-Liang Li, Paul Brandt-Rauf, Zhao-Lin Xia
AIM: To identify differently expressed miRNAs associated with vinyl chloride monomer (VCM) and micronuclei (MN) frequency. METHOD: In discovery stage, we used microarray to detect miRNAs expression in peripheral blood lymphocytes between six low and six high VCM-exposed workers grouped by medium cumulative exposure dose. Then we validated four miRNAs using real-time quantitative reverse transcription PCR (qRT-PCR) and detected the micronuclei frequencies using cytokinesis-block micronucleus assay in 94 VCM-exposed workers and 53 healthy control subjects...
July 27, 2017: Epigenomics
https://www.readbyqxmd.com/read/28746049/microrna-451-modulated-hnrnp-a1-takes-a-part-in-granulocytic-differentiation-regulation-and-acute-myeloid-leukemia
#17
Li Song, Hai-Shuang Lin, Jia-Nan Gong, Hua Han, Xiao-Shuang Wang, Rui Su, Ming-Tai Chen, Chao Shen, Yan-Ni Ma, Jia Yu, Jun-Wu Zhang
Myelopoiesis is under the control of a complex network containing various regulation factors. Deregulation of any important regulation factors may result in serious consequences including acute myeloid leukemia (AML). In order to find out the genes that may take a part in AML development, we analyzed data from AML cDNA microarray (GSE2191) in the NCBI data pool and noticed that heterogeneous nuclear ribonucleoprotein A1 (hnRNP A1) is abnormally over-expressed in AML patients. Then we investigated the function and mechanisms of hnRNP A1 in myeloid development...
July 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28726609/influenza-d-virus-in-animal-species-in-guangdong-province-southern-china
#18
Shao-Lun Zhai, He Zhang, Sheng-Nan Chen, Xia Zhou, Tao Lin, Runxia Liu, Dian-Hong Lv, Xiao-Hui Wen, Wen-Kang Wei, Dan Wang, Feng Li
Molecular tests revealed influenza D viruses of D/OK lineage widely circulating in farmed animal species in Guangdong Province, southern China. In particular, we found high levels of influenza D virus infection in goats and pigs. We also detected viral RNA in serum specimens and feces of animals with certain severe diseases.
August 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28720648/neutrophil-extracellular-traps-induced-by-cigarette-smoke-activate-plasmacytoid-dendritic-cells
#19
Shi-Lin Qiu, Hui Zhang, Qi-Ya Tang, Jing Bai, Zhi-Yi He, Jian-Quan Zhang, Mei-Hua Li, Jing-Min Deng, Guang-Nan Liu, Xiao-Ning Zhong
BACKGROUND: Neutrophil extracellular traps (NETs) represent a distinct strategy by which neutrophils trap, confine and eliminate invading microorganisms. Emerging evidence suggests that NETs exert a deleterious effect to the host in the absence of microbial stimuli. However, the role of NETs in smoking-related lung diseases remains to be elucidated. OBJECTIVES: To evaluate the formation of NETs in the context of chronic inflammation induced by cigarette smoking and explore its potential role in an experimental mouse model of emphysema...
July 18, 2017: Thorax
https://www.readbyqxmd.com/read/28718622/graphene-sheet-induced-global-maturation-of-cardiomyocytes-derived-from-human-induced-pluripotent-stem-cells
#20
Jiaxian Wang, Chang Cui, Haiyan Nan, Yuanfang Yu, Yini Xiao, Ellen Poon, Gang Yang, Xijie Wang, Chenchen Wang, Lingsong Li, Kenneth Richard Boheler, Xu Ma, Xin Cheng, Zhenhua Ni, Minglong Chen
Human induced pluripotent stem cells (hiPSCs) can proliferate infinitely. Their ability to differentiate into cardiomyocytes provides abundant sources for disease modeling, drug screening and regenerative medicine. However, hiPSC-derived cardiomyocytes (hiPSC-CMs) display a low degree of maturation and fetal-like properties. Current in vitro differentiation methods do not mimic the structural, mechanical, or physiological properties of the cardiogenesis niche. Recently, we present an efficient cardiac maturation platform that combines hiPSCs monolayer cardiac differentiation with graphene substrate, which is a biocompatible and superconductive material...
August 9, 2017: ACS Applied Materials & Interfaces
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