367 Works

The safety and tolerability of alkaloids from Alstonia scholaris leaves in healthy Chinese volunteers: a single-centre, randomized, double-blind, placebo-controlled phase I clinical trial

Zhong-Ping Gou, Yun-Li Zhao, Lin-Ling Zou, Ying Wang, Shi-Qing Shu, Xiao-Hong Zhu, Li Zheng, Qi Shen, Zhu Luo, Jia Miao, Yong-Sheng Wang, Xiao-Dong Luo & Ping Feng
Capsule of alkaloids from the leaf of Alstonia scholaris (L.) R.Br. (Apocynaceae) (CALAS) is a new investigational botanical drug (No. 2011L01436) for bronchitis, post-infectious cough and asthma. To observe the clinical safety and tolerability of CALAS. Subjects were assigned to eight cohorts, and each received randomly CALAS or placebo in one of single ascending dose (SAD) of 8, 40, 120, 240, 360, 480, or in one of multiple ascending dose (MAD) of 40 or 120...

Identification of the key genes and pathways involved in B cells in primary Sjögren’ s syndrome

Shizhen Lei & Yi Zhang
Primary Sjögren’ s syndrome (pSS) is a relatively common autoimmune disease, which mainly involves the exocrine glands, causing dry eye, dryness of mouth, fatigue and pain in the joints, thus severely affecting the normal lives of patients. B cell populations are considered to play an important role in their pathogenesis and pSS patients are generally characterized by exhibiting biological signs of B cell activation. Moreover, another important characterized change in the peripheral blood of pSS...

Identification of the key genes and pathways involved in B cells in primary Sjögren’ s syndrome

Shizhen Lei & Yi Zhang
Primary Sjögren’ s syndrome (pSS) is a relatively common autoimmune disease, which mainly involves the exocrine glands, causing dry eye, dryness of mouth, fatigue and pain in the joints, thus severely affecting the normal lives of patients. B cell populations are considered to play an important role in their pathogenesis and pSS patients are generally characterized by exhibiting biological signs of B cell activation. Moreover, another important characterized change in the peripheral blood of pSS...

Can warnings curb the spread of fake news? The interplay between warning, trust and confirmation bias

Kholekile L. Gwebu, Jing Wang & Ermira Zifla
Despite attempts by social media companies to curb the spread of fake news with warnings flagging news credibility, the effectiveness of such measures remains unclear. Through the lens of the cognitive dissonance theory and individuals’ trust in the news, this study develops a theoretical model that explains why and how warnings affect an individual’s intention to share fake news. The study empirically assesses the predicted relationships using experimental survey data from 382 individuals. The findings...

Can warnings curb the spread of fake news? The interplay between warning, trust and confirmation bias

Kholekile L. Gwebu, Jing Wang & Ermira Zifla
Despite attempts by social media companies to curb the spread of fake news with warnings flagging news credibility, the effectiveness of such measures remains unclear. Through the lens of the cognitive dissonance theory and individuals’ trust in the news, this study develops a theoretical model that explains why and how warnings affect an individual’s intention to share fake news. The study empirically assesses the predicted relationships using experimental survey data from 382 individuals. The findings...

Additional file 8 of Temporal expression study of miRNAs in the crown tissues of winter wheat grown under natural growth conditions

Menglei Wang, Chenhui Yang, Kangning Wei, Miao Zhao, Liqiang Shen, Jie Ji, Li Wang, Daijing Zhang, Junqiang Guo, Yun Zheng, Juanjuan Yu, Mo Zhu, Haiying Liu & Yong-Fang Li
Additional file 8: Table S5. Sequence of primers used in this study.

B7 family member H4 induces epithelial-mesenchymal transition and promotes the proliferation, migration and invasion of colorectal cancer cells

Yuzhen Yin, Lili Shi, Jing Yang, Hui Wang, Hang Yang & Qiang Wang
Colorectal cancer (CRC) is a common malignancy of the gastrointestinal tract, which has the second highest incidence among gastrointestinal tumors. At present, due to the limitations of current CRC treatment strategies, there is an urgent need for developing more effective therapies. B7 family member H4 (B7-H4) is associated with the progression of a wide spectrum of cancers, but its functional role in CRC is unknown. The purpose of this study is to clarify the role...

mRNA m5C controls adipogenesis by promoting CDKN1A mRNA export and translation

Youhua Liu, Yuanling Zhao, Ruifan Wu, Yushi Chen, Wei Chen, Yuxi Liu, Yaojun Luo, Chaoqun Huang, Botao Zeng, Xing Liao, Guanqun Guo, Yizhen Wang & Xinxia Wang
5-Methylcytosine (m5C) is a type of RNA modification that exists in tRNAs and rRNAs and was recently found in mRNA. Although mRNA m5C modification has been reported to regulate diverse biological process, its function in adipogenesis remains unknown. Here, we demonstrated that knockdown of NOL1/NOP2/Sun domain family member 2 (NSUN2), a m5C methyltransferase, increased lipid accumulation of 3T3-L1 preadipocytes through accelerating cell cycle progression during mitotic clonal expansion (MCE) at the early stage of adipogenesis....

Selenium-associated differentially expressed microRNAs and their targeted mRNAs across the placental genome in two U.S. birth cohorts

Fu-Ying Tian, Elizabeth M. Kennedy, Karen Hermetz, Amber Burt, Todd M. Everson, Tracy Punshon, Brian P. Jackson, Ke Hao, Jia Chen, Margaret R. Karagas, Devin C. Koestler & Carmen Marsit
Selenium is an important micronutrient for foetal development. MicroRNAs play an important role in the function of the placenta, in communication between the placenta and maternal systems, and their expression can be altered through environmental and nutritional cues. To investigate the associations between placental selenium concentration and microRNA expression in the placenta, our observational study included 393 mother-child pairs from the New Hampshire Birth Cohort Study (NHBCS) and the Rhode Island Child Health Study (RICHS)....

Circular RNA erythrocyte membrane protein band 4.1 assuages ultraviolet irradiation-induced apoptosis of lens epithelial cells by stimulating 5’-bisphosphate nucleotidase 1 in a miR-24-3p-dependent manner

Cuiyun Zhou, Xiaoqiong Huang, Xia Li & Yan Xiong
Apoptosis of lens epithelial cells contributed to the formation of age-related cataract (ARC), and previous data revealed that circular RNA (circRNA) was responsible for the underneath mechanism. The study was organized to explore the role of circular RNA erythrocyte membrane protein band 4.1 (circ_EPB41) in ultraviolet (UV) irradiation-induced apoptosis of lens epithelial cells. SRA01/04 cells were irradiated with UV to mimic the ARC cell model. The RNA levels of circ_EPB41, microRNA-24-3p (miR-24-3p), and 3ʹ(2ʹ), 5ʹ-bisphosphate...

A new dihydroflavone and a new polyacetylene glucoside from Bidens parviflora

Fu-Jie Cai, Chuan-Hou Li, Xiao-Hui Sun, Lu Wang, Jin-Li Tian, Wei Zhao, De-Gang Kong, Qing Liu & Hong-Lei Zhou
A new dihydroflavone, 2(S)-isookanin-4′-methoxy-8-O-β-D-glucopyranoside (1), and a new polyacetylene glucoside, (10S)-tridecane-2E-ene-4,6,8-triyne-1-ol-10-O-β-D-glucopyranoside (2), along with seven known compounds (3–9), were isolated from the herb of Bidens parviflora Willd. The structures of all the extracted compounds were elucidated by HR-ESI-MS, 1 D and 2 D NMR spectra, as well as circular dichroism (CD).

Fetoscopy-guided bipolar cord coagulation in selective fetal reduction with complicated monochorionic diamniotic twins: a prospective cohort study

Hui R. Tang, Chen Y. Dai, Jie Li, Yi M. Dai, Tong Ru, Ya L. Li, Xian Xiao, Zhong T. Fan, Ya L. Hu & Ming M. Zheng
To assess the feasibility of fetoscopy-guided bipolar umbilical cord coagulation for selective fetal reduction in complicated monochorionic diamniotic (MCDA) twin pregnancies. MCDA twins undergoing fetoscopy-guided bipolar cord coagulation (BCC) were enrolled prospectively between December 2015 to March 2020 in a fetal medicine center. Twenty-three cases undergoing fetoscopy-guided BCC were finally analyzed, including 11 cases for type 2 selective intrauterine growth restriction, 4 cases for twin–twin transfusion syndrome, and 8 cases for a severe discordant anomaly....

HIF-1α promotes the keloid development through the activation of TGF-β/Smad and TLR4/MyD88/NF-κB pathways

Rui Lei, Jian Li, Feng Liu, Weihan Li, Shizhen Zhang, Yang Wang, Xi Chu & Jinghong Xu
A keloid is defined as an overgrowth of the dense fibrous tissues that form around a wound. Since they destroy the vascular network, keloid tissues often exhibit anoxic conditions. Hypoxia-inducible factor-1α (HIF-1α) is a core factor that mediates hypoxia stress responses and regulates the hypoxic cellular and biological behaviors. In this study, we found that the expression level of HIF-1α in keloid tissue was significantly higher than that in the normal skin tissue. Hypoxia-induced HIF-1α...

Genome-wide analysis and characterization of GRAS family in switchgrass

Xiaoqin Wang, Guixia Li, Yajing Sun, Zhongyu qin & Pengcheng Feng
Panicum virgatum, a model plant of cellulosic ethanol conversion, not only has high large biomass and strong adaptability to soil, but also grows well in marginal soil and has the advantage of improving saline-alkali soil. GRAS transcription factor gene family play important roles in individual environment adaption, and these vital functions has been proved in several plants, however, the research of GRAS in the development of switchgrass (Panicum virgatum) were limited. A comprehensive study was...

Identification of prognostic markers by weighted gene co‐expression network analysis in non-small cell lung cancer

Binglin Chen, Xiaowei Xie, Feifeng Lan & Wenqi Liu
Non-small cell lung cancer (NSCLC) is one of the fatal tumors and is associated with a poor prognosis. Cell-type identification by estimating relative subsets of RNA transcripts (CIBERSORT) was used to quantify the proportions of 22 types of immune cells. Weighted gene co-expression network analysis (WGCNA) was established from the GSE37745 data, and key modules correlating most with CD8+ T cell infiltration were determined. Genes that manifested a high module connectivity in the key module...

Identification of prognostic markers by weighted gene co‐expression network analysis in non-small cell lung cancer

Binglin Chen, Xiaowei Xie, Feifeng Lan & Wenqi Liu
Non-small cell lung cancer (NSCLC) is one of the fatal tumors and is associated with a poor prognosis. Cell-type identification by estimating relative subsets of RNA transcripts (CIBERSORT) was used to quantify the proportions of 22 types of immune cells. Weighted gene co-expression network analysis (WGCNA) was established from the GSE37745 data, and key modules correlating most with CD8+ T cell infiltration were determined. Genes that manifested a high module connectivity in the key module...

Chemical composition characteristics and source analysis of PM2.5 in Jiaxing, China: insights into the effect of COVID-19 outbreak

Chuanfang Xiong, Yinglong Zhang, Jing Yan, Xiaoxia Yang, Qiongzhen Wang, Rui Tu & Yi He
Jiaxing is a medium-sized city in the Yangtze River Delta (YRD), which showed complex local and surrounding pollution sources. To study the COVID-19 impact on the ambient PM2.5 in Jiaxing, we collected the PM2.5 samples from 2 January to 25 April 2020 and analysed their chemical compositions (including carbon components, water-soluble ions (WSIs), and inorganic elements). The concentration of PM2.5 was 83.13 ± 30.93 μg/m3 before COVID-19 pandemic and then remarkably decreased with COVID-19 outbreak...

A new prognostic risk model based on autophagy-related genes in kidney renal clear cell carcinoma

Guangzhen Wu, Yingkun Xu, Huayu Zhang, Zihao Ruan, Peizhi Zhang, Zicheng Wang, Han Gao, Xiangyu Che, Qinghua Xia & Feng Chen
This study aimed to explore the potential role of autophagy-related genes in kidney renal clear cell carcinoma (KIRC) and develop a new prognostic-related risk model. In our research, we used multiple bioinformatics methods to perform a pan-cancer analysis of the CNV, SNV, mRNA expression, and overall survival of autophagy-related genes, and displayed the results in the form of heat maps. We then performed cluster analysis and LASSO regression analysis on these autophagy-related genes in KIRC....

Three new tyrosol derivatives from Huangjing wine

Yan-Bin Ren, Xing-Wen Wang, Jia-Xuan Bai, Chang Liu, Si-Lin Yu, Yue Zhou, Cong-Cong Lin, Da-Hong Yao, Jian Huang & Jin-Hui Wang
Phytochemical investigation on the concentrate of Huangjing wine, resulted in the isolation of three new tyrosol derivatives 4′′′-hydroxyphenethyl 2-(R)-hydroxy-3-phenylpropionate (1), 4′′′-hydroxyphenethyl(4′-hydroxy-3′-methoxyphenyl)propionate (2) and 4′′-hydroxyphenethyl ethyl succinate (3), together with 5 known compounds, ferulic acid (4), L-phenyllactic acid (5), hydroxytyrosol (6), dihydroferulic acid (7), cyclo(L-Pro-D-Tyr) (8). Their structures were elucidated using spectroscopic analysis and by comparison with the literature data. All compounds displayed antioxidant effect in the DPPH (2,2-diphenyl-1-picrylhydrazyl) radical. Among them, the new compound 2...

Effect of traditional Chinese medicine formula Guilu Xian on in vitro fertilization and embryo transfer outcome in older women with low prognosis: study protocol for a prospective, multicenter, randomized double-blind study

Yingjie Ma, Xianling Cao, Jingyan Song, Dandan Gao, Xinlei Wang, Li Li & Zhengao Sun
Abstract Introduction In recent years, the prevalence of infertility has significantly increased and has become a global reproductive health problem. The female ovarian reserves have been shown to decrease progressively with an increase in age. Besides, the rate of embryo implantation and clinical pregnancy also decreases. Traditional Chinese medicine has been widely applied in assisted reproductive technology. It is reported to have a significant influence on improving the quality of oocytes, improving endometrial receptivity, increasing...

Additional file 2 of Effect of traditional Chinese medicine formula Guilu Xian on in vitro fertilization and embryo transfer outcome in older women with low prognosis: study protocol for a prospective, multicenter, randomized double-blind study

Yingjie Ma, Xianling Cao, Jingyan Song, Dandan Gao, Xinlei Wang, Li Li & Zhengao Sun
Additional file 2. Schedule of the study process

Site-specific SUMOylation of viral polymerase processivity factor: a way of localizingtoND10 subnuclear domains for restricted and self-controlled reproduction of herpesvirus

Shuyan Lai, Mengqiong Xu, Yaohao Wang, Ruilin Li, Chuan Xia, Sisi Xia & Jun Chen
Lytic replication of human cytomegalovirus (HCMV), a member of β-herpesvirus, is a highly complicated and organized process that requires its DNA polymerase processivity factor, UL44, the first-reported HCMV replication protein subjected to SUMO post-translational modification (PTM). SUMOylation plays a pleiotropic role in protein functions of host cells and infecting viruses. Particularly, formation of herpesviral replication compartments (RCs) upon infection is induced in proximity to ND10 subnuclear domains, the host cell’s intrinsic antiviral immune devices and...

A seven-gene signature and the C–C motif chemokine receptor family genes are the sarcoma-related immune genes

Jiarui Chen, Tuo Liang, Jiemei Cen, Jie Jiang, Shixin Pan, Shengsheng Huang, Liyi Chen, Xuhua Sun, Hao Li, Tianyou Chen, Wei Liang, Shian Liao, Chaojie Yu, Yuanlin Yao, Zhen Ye, Wuhua Chen, Hao Guo, Xinli Zhan & Chong Liu
Cells of the tumor microenvironment exert a vital influence on sarcoma prognosis. This study aimed to analyze and identify differentially expressed genes (DEGs) related to immunity and their significance as immune biomarkers for the accurate prediction of overall survival of patients with sarcoma. The Cancer Genome Atlas was adopted for obtaining sarcoma gene microarray and corresponding clinical information. ESTIMATE algorithm was used to calculate tumor immune microenvironment indices. Immune-associated DEGs were identified using the limma...

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),...

Taberdines L and M, two new alkaloids from Tabernaemontana divaricata

Lingling Han, Kepu Huang, Chen Chen, Wentao Zhu, Yehan Ma, Xiaojiang Hao, Hongping He & Yu Zhang
Two new alkaloids, taberdines L (1) and M (2), together with six known alkaloids, were isolated from the twigs and leaves of Tabernaemontana divaricata. Taberdine L (1) represents the first optically active natural member of the allo iboga class of alkaloids with the ethyl side chain in a bridgehead position. Their structures including absolute configuration were elucidated by a combination of MS, NMR, and ECD calculation. The in vitro cytotoxic activities of 1 and 2...

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  • Central South University
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