51 Works

Cytotoxicity and polyol pathway inhibitory activities of chemical constituents isolated from the pericarp of Toona sinensis

Rongshen Wang, Di Liu, Xiaoxiao Liu, Fan Liu, Lulu Xuan, Ying Tang & Wanzhong Li
Toona sinensis is a medicinal and edible plant that belongs to the genus Toona of family Meliaceae. Phytochemical investigations carried out on this plant, seven apotirucallane-type triterpenoids (1–7), two cycloartane-type triterpenoids (8–9), four sterols (10–13), two sesquiterpenes (14–15), four phenols (16–19), and one lignin (20) were isolated from the pericarp of T. sinensis by silica gel column and preparative middle pressure liquid chromatography. Their structures were identified by interpretation of NMR and comparison with those...

Hepatitis B virus middle surface antigen loss promotes clinical variant persistence in mouse models

Junyu Lin, Jing Li, Peilin Xie, Yue Han, Demin Yu, Jia Chen & Xinxin Zhang
Hepatitis B virus (HBV) middle surface antigen (MHBs) mutation or deletion occurs in patients with chronic HBV infection. However, the functional role of MHBs in HBV infection is still an enigma. Here, we reported that 7.33% (11/150) isolates of CHB patients had MHBs start codon mutations compared with 0.00% (0/146) in acute hepatitis B (AHB) patients. Interestingly, MHBs loss accounted for 11.88% (126/1061) isolates from NCBI GenBank, compared with 0.09% (1/1061) and 0.00% (0/1061) for...

Comparative analysis of circular RNA enrichment methods

Huajuan Shi, Ying Zhou, Erteng Jia, Zhiyu Liu, Min Pan, Yunfei Bai, Xiangwei Zhao & Qinyu Ge
The circRNAs sequencing results vary due to the different enrichment methods and their performance is needed to systematic comparison. This study investigated the effects of different circRNA enrichment methods on sequencing results, including abundance and species of circRNAs, as well as the sensitivity and precision. This experiment was carried out by following four common circRNA enrichment methods: including ribosomal RNA depletion (rRNA–), polyadenylation and poly (A+) RNA depletion followed by RNase R treatment (polyA+RNase R),...

The hypermucoviscosity of hypervirulent K. pneumoniae confers the ability to evade neutrophil-mediated phagocytosis

Qi Xu, Xuemei Yang, Edward Wai Chi Chan & Sheng Chen
Hypervirulent Klebsiella pneumoniae (HvKP), which causes highly fatal infections, is a new threat to human health. In an attempt to investigate the underlying mechanisms of resistance to neutrophil-mediated killing and hence expression of high-level virulence by HvKP, we tested the binding affinity of HvKP strains to various types of human cells. Our data showed that HvKP exhibited weaker binding to both lung epithelial cells, intestinal Caco-2 cells and macrophages when compared to the classic, non-hypervirulent...

Novel mutation in TSPAN12 associated with familial exudative vitreoretinopathy in a Chinese pedigree

Zhen Song, Mo Li, Chang Wang, Yu Wang, Lihua Zhang, Na Li, Ruifang Yang & Ping Sun
Familial exudative vitreoretinopathy (FEVR) is a rare retinal disorder characterised by incomplete retinal vascular development. Symptoms vary widely from none to blindness even within the same family. Multiple genes related to the Wnt pathway have been found to be associated with FEVR. Recent studies identified tetraspanin 12 (TSPAN12) as a cause of the autosomal dominant inheritance form of FEVR. Here, we describe a novel TSPAN12 mutation in a Chinese family with FEVR. Targeted next-generation sequencing...

Early Cretaceous rapid exhumation processes in the southern Great Xing’an Range, NE China: implications for extensional geodynamics

Wen Zhang, Shuangfeng Zhao, Wen Chen, Jingbo Sun, Ze Shen, Qiuyi Du & Zhi Li
The Mesozoic-Cenozoic geological evolution of the southern Great Xing’an Range (GXR) has long been controversial since it is located in the superposed region of different tectonic regimes and involves complex interactions. Here, we present low-temperature thermochronological data from granitoids emplaced in multiple magmatic stages to delineate the tectono-thermal history and further understand the geodynamic process. Most zircon and apatite (U-Th)/He ages, within error, indicate Early Cretaceous: the zircon average (U-Th)/He ages range from 146.7 ±...

Preparation, Characterization of Carboxyl Polyaldehyde Sugars and Application as Innovative Anti-crease Finishing Agents for Cotton Fabric

Jiangfei Lou, Dan Wang & Xuerong Fan
We have designed and prepared four new cellulose cross-linking agents using NaClO/NaBr/TEMPO and sodium periodate selective catalytic oxidation systems. First, the primary hydroxyl group of sucrose, trehalose, maltose, or lactose was carboxylated through NaClO/NaBr/TEMPO system, and then sodium periodate was used to selectively oxidize the carboxyl compound to obtain carboxyl polyaldehyde sugars. They contained multiple aldehyde groups and carboxyl groups in the molecule, had high reactivity, and can be covalently cross-linked with cellulose. To evaluate...

Foliar nutrient diagnosis norms for litchi (Litchi chinensis Sonn. cv. Feizixiao) in South China

Donglin Luo, Wei Wang, Cuihua Bai, Luwei Zhu, Huan Li, Changmin Zhou, Quanmin Qiu & Lixian Yao
Foliar nutrient diagnosis is a potent tool for nutrient management in crops. Litchi (Litchi chinensis Sonn.) plantation in China dominates the worldwide litchi cultivation, and Feizixiao is the most widely cultivated species in China. Herein, 538 leaf samples were collected at fruit swelling stage and the terminal shoot maturing stage during 2016–2017, and the fruit yields of all the sampled trees were recorded. The suitability of four nutrient diagnosis methods including critical value approach (CVA),...

sj-docx-1-prf-10.1177_02676591211052160 – Supplemental material for Sedation and analgesia requirements during venovenous extracorporeal membrane oxygenation in acute respiratory distress syndrome patients

Xingshu Ren, Yuhang Ai, Lina Zhang, Chunguang Zhao, Li Li & Xinhua Ma
Supplemental material, sj-docx-1-prf-10.1177_02676591211052160 for Sedation and analgesia requirements during venovenous extracorporeal membrane oxygenation in acute respiratory distress syndrome patients by Xingshu Ren, Yuhang Ai, Lina Zhang, Chunguang Zhao, Li Li and Xinhua Ma in Perfusion

HRM and CRAC in MxIRT1 act as iron sensors to determine MxIRT1 vesicle-PM fusion and metal transport

Song Tan, Xi Zhang, Qi Zhang, Yu-Meng Li, Peng Zhang & Li-Ping Yin
The IRON-REGULATED TRANSPORTER1 (IRT1) is critical for iron uptake in roots, and its exocytosis to the plasma membrane (PM) is regulated by detergent-resistant membranes. However, studies on IRT1 exocytosis and function in response to iron status are limited. Presently, we found that the histidine-rich motif (HRM) of MxIRT1 could bind to iron directly and HRM determined the delivery of MxIRT1 to the PM, after which the cholesterol recognition amino acid consensus (CRAC) motif-regulated MxIRT1 mediated...

HRM and CRAC in MxIRT1 act as iron sensors to determine MxIRT1 vesicle-PM fusion and metal transport

Song Tan, Xi Zhang, Qi Zhang, Yu-Meng Li, Peng Zhang & Li-Ping Yin
The IRON-REGULATED TRANSPORTER1 (IRT1) is critical for iron uptake in roots, and its exocytosis to the plasma membrane (PM) is regulated by detergent-resistant membranes. However, studies on IRT1 exocytosis and function in response to iron status are limited. Presently, we found that the histidine-rich motif (HRM) of MxIRT1 could bind to iron directly and HRM determined the delivery of MxIRT1 to the PM, after which the cholesterol recognition amino acid consensus (CRAC) motif-regulated MxIRT1 mediated...

Cytotoxicity and polyol pathway inhibitory activities of chemical constituents isolated from the pericarp of Toona sinensis

Rongshen Wang, Di Liu, Xiaoxiao Liu, Fan Liu, Lulu Xuan, Ying Tang & Wanzhong Li
Toona sinensis is a medicinal and edible plant that belongs to the genus Toona of family Meliaceae. Phytochemical investigations carried out on this plant, seven apotirucallane-type triterpenoids (1–7), two cycloartane-type triterpenoids (8–9), four sterols (10–13), two sesquiterpenes (14–15), four phenols (16–19), and one lignin (20) were isolated from the pericarp of T. sinensis by silica gel column and preparative middle pressure liquid chromatography. Their structures were identified by interpretation of NMR and comparison with those...

Novel modified nano-silica/polymer composite in water-based drilling fluids to plug shale pores

Fei Liu, Zheng Zheng, Xiuying Wang, Xiaqing Li, Zhaoxiang Zhang, Xuewu Wang, Xiaodong Dai, Yanping Xin, Qingxue Liu, Hailei Yao, Shunyao Jiang, Chao Liu & Xingyan Li
The rapid growth of global energy demand necessitates high-performance water-based drilling fluids (WDFs) with excellent-plugging performance in the deep excavation of shale gas formation. Herein, we report an organic-inorganic nanocomposite (NS-D) as a plugging agent in WDFs to plug the nanoporous of shale and abate the hydration expansion of shale by integrating the advantages of inorganic and polymer nano plugging agents. The results of Fourier Transform infrared spectroscopy (FTIR) and proton nuclear magnetic resonance (H-NMR)...

Extraction and characterization of a functional protein from Millettia speciosa Champ. leaf

Si-Yuan Luo, Zhi Huang, Xi Chen, Min-Hua Zong & Wen-Yong Lou
Natural plant-derived protein with excellent bioactivities has attracted much attention so a functional protein with molecular weight of 15.2 kDa was extracted from Millettia speciosa Champ. leaf for the first time. Under the pH of 12.0, solid-liquid ratio of 1:40 (w/v), extraction time of 2.0 h, and extraction temperature of 50 °C, the highest extracting efficiency (79.25 ± 0.78%) of the Millettia speciosa Champ. leaf protein (MLP) was achieved. The main structure of MLP contained...

Early Cretaceous mafic enclaves from the Jiaodong Peninsula of NNE China and what they reveal about lithospheric melts and granodiorite genesis: the Yashan example

Kadio Aka D. Koua, Huashan Sun, Huan Li, Zhanke Li, Hui Yang, Qingming Sun, Ohouo Rebecca Mondah & Koffi Alexis N’dri
Mafic microgranular enclaves (MMEs) are hosted by the Early Cretaceous granitic plutons from the Jiaodong Peninsula and are crucial for constraining the petrogenesis of these plutons and understanding the lithospheric evolution in the eastern North China Craton (NCC). This paper presents new geochronological, bulk-rock geochemistry, and Sr-Nd-Hf isotope data for Yashan granodiorite and its MMEs in an effort to build an integrated model of the geodynamic setting during the Early Cretaceous. Zircon U–Pb dating indicates...

Diversification and prevalence of the quinolone resistance crpP genes and the crpP-carrying Tn6786-related integrative and conjugative elements in Pseudomonas aeruginosa

Zhichen Zhu, Huiying Yang, Zhe Yin, Ying Jing, Yuee Zhao, Hongyu Fu, Hong Du & Dongsheng Zhou
The quinolone resistance crpP genes can mediate decreased susceptibility to quinolones. However, diversification and prevalence of crpP genes and crpP-carrying integrative and conjugative elements (ICEs) still need to be elucidated. In this study, genome sequencing was conducted for 200 Chinese Pseudomonas aeruginosa isolates, 16 of which were fully sequenced. All the 37 available CrpP variants were collected for phylogenetic analysis, 10 CrpP enzymes were chosen to conduct cloning and antimicrobial susceptibility test, and 22 crpP-carrying...

Folic acid-modified ROS-responsive nanoparticles encapsulating luteolin for targeted breast cancer treatment

Yu Wang, Qianmei Wang, Wei Feng, Qian Yuan, Xiaowei Qi, Sheng Chen, Pu Yao, Qing Dai, Peiyuan Xia, Dinglin Zhang & Fengjun Sun
Luteolin (Lut) is a natural flavonoid polyphenolic compound with multiple pharmacological activities, such as anti-oxidant, anti-inflammatory, and anti-tumor effects. However, the poor aqueous solubility and low bioactivity of Lut restrict its clinical translation. Herein, we developed a reactive oxygen species (ROS)-responsive nanoplatforms to improve the bioactivity of Lut. Folic acid (FA) was employed to decorate the nanoparticles (NPs) to enhance its targeting ability. The size of Lut-loaded ROS-responsive nanoparticles (Lut/Oxi-αCD NPs) and FA-modified Lut/Oxi-αCD NPs...

Efficient and Solvent-Free Oxidation Coupling of Amines to Imines Using Persulfate as Oxidant with Ultrasound Assistance

Junyan Wang, Xing Wang, Xiaona Liu, Qingbin Guo, Weimeng Kong & Di Liu
The coupling reactions of amines into imines oxidized by persulfate with the assistance of ultrasound were carried out. The reaction conditions were optimized and the effect of ultrasonic was also investigated. The results indicated that Na2S2O8 in combination with ultrasound possessed excellent oxidative performance, which made this transformation smoothly proceed under the conditions of solvent-/catalyst- free, and low reaction temperature, giving excellent yields of imines in short reaction time. Our procedure had high reaction tolerance...

The hypermucoviscosity of hypervirulent K. pneumoniae confers the ability to evade neutrophil-mediated phagocytosis

Qi Xu, Xuemei Yang, Edward Wai Chi Chan & Sheng Chen
Hypervirulent Klebsiella pneumoniae (HvKP), which causes highly fatal infections, is a new threat to human health. In an attempt to investigate the underlying mechanisms of resistance to neutrophil-mediated killing and hence expression of high-level virulence by HvKP, we tested the binding affinity of HvKP strains to various types of human cells. Our data showed that HvKP exhibited weaker binding to both lung epithelial cells, intestinal Caco-2 cells and macrophages when compared to the classic, non-hypervirulent...

Early Cretaceous rapid exhumation processes in the southern Great Xing’an Range, NE China: implications for extensional geodynamics

Wen Chen, Wen Zhang, Shuangfeng Zhao, Jingbo Sun, Ze Shen, Qiuyi Du & Zhi Li
The Mesozoic-Cenozoic geological evolution of the southern Great Xing’an Range (GXR) has long been controversial since it is located in the superposed region of different tectonic regimes and involves complex interactions. Here, we present low-temperature thermochronological data from granitoids emplaced in multiple magmatic stages to delineate the tectono-thermal history and further understand the geodynamic process. Most zircon and apatite (U-Th)/He ages, within error, indicate Early Cretaceous: the zircon average (U-Th)/He ages range from 146.7 ±...

Foliar nutrient diagnosis norms for litchi (Litchi chinensis Sonn. cv. Feizixiao) in South China

Donglin Luo, Wei Wang, Cuihua Bai, Luwei Zhu, Huan Li, Changmin Zhou, Quanmin Qiu & Lixian Yao
Foliar nutrient diagnosis is a potent tool for nutrient management in crops. Litchi (Litchi chinensis Sonn.) plantation in China dominates the worldwide litchi cultivation, and Feizixiao is the most widely cultivated species in China. Herein, 538 leaf samples were collected at fruit swelling stage and the terminal shoot maturing stage during 2016–2017, and the fruit yields of all the sampled trees were recorded. The suitability of four nutrient diagnosis methods including critical value approach (CVA),...

Comparative analysis of circular RNA enrichment methods

Huajuan Shi, Ying Zhou, Erteng Jia, Zhiyu Liu, Min Pan, Yunfei Bai, Xiangwei Zhao & Qinyu Ge
The circRNAs sequencing results vary due to the different enrichment methods and their performance is needed to systematic comparison. This study investigated the effects of different circRNA enrichment methods on sequencing results, including abundance and species of circRNAs, as well as the sensitivity and precision. This experiment was carried out by following four common circRNA enrichment methods: including ribosomal RNA depletion (rRNA–), polyadenylation and poly (A+) RNA depletion followed by RNase R treatment (polyA+RNase R),...

sj-docx-1-prf-10.1177_02676591211052160 – Supplemental material for Sedation and analgesia requirements during venovenous extracorporeal membrane oxygenation in acute respiratory distress syndrome patients

Xingshu Ren, Yuhang Ai, Lina Zhang, Chunguang Zhao, Li Li & Xinhua Ma
Supplemental material, sj-docx-1-prf-10.1177_02676591211052160 for Sedation and analgesia requirements during venovenous extracorporeal membrane oxygenation in acute respiratory distress syndrome patients by Xingshu Ren, Yuhang Ai, Lina Zhang, Chunguang Zhao, Li Li and Xinhua Ma in Perfusion

Additional file 1 of Effectiveness of electroacupuncture for thin endometrium in infertile women: study protocol for a single-blind, randomized controlled trial

Fangyuan Li, Hua Lu, Xinxin Wang, Qi Zhang, Qianchen Liu & Tong Wang
Additional file 1.

Four new resorcinol derivatives with neuroprotective activities from Xylaria nigripes

Lan-Qing Li, Jing Li, Hong-Ping Long, Ji-Kai Liu & Xian Wang
Four new resorcinol derivatives, namely (−)/(+)-xylarinig A (1), as well as xylarinigs B (2) and C (3), were isolated from the ethyl acetate extracts of the solid fermentation of Xylaria nigripes. Their structures were established by comprehensive spectroscopic analysis combined with electronic circular dichroism (ECD) calculations. Compound 1 is an optical mixture, and was resoluted into optical pure enatiomers (+)-1 and (−)-1 by chiral HPLC. The neuroprotective effects of 1–3 against the damage of PC12...

Registration Year

  • 2021
    51

Resource Types

  • Text
    51

Affiliations

  • Guangzhou Medical University
    51
  • Chinese Academy of Medical Sciences & Peking Union Medical College
    39
  • Zhejiang University
    35
  • Chinese Academy of Sciences
    33
  • Shanghai Jiao Tong University
    32
  • Sun Yat-sen University
    28
  • Capital Medical University
    28
  • Southern Medical University
    27
  • Huazhong University of Science and Technology
    26
  • Fudan University
    25