3,419 Works

Assessing spatiotemporal variations and predicting changes in ecosystem service values in the Guangdong–Hong Kong–Macao Greater Bay Area

Jie Zhang, Xuecao Li, Chenchen Zhang, Le Yu, Jingzhe Wang, Xiangyin Wu, Zhongwen Hu, Zihan Zhai, Qingquan Li, Guofeng Wu & Tiezhu Shi
Rapid economic development and interference by human activities in rapid urbanization regions have caused great land use/land cover change (LUCC), which significantly affects ecosystem functions and services. It is crucial to assess the spatiotemporal evolution of ecosystem service value (ESV) in such regions, especially for the Guangdong–Hong Kong–Macao Greater Bay Area (GBA) in China. In this study, we investigated and predicted the effect of LUCC on the ESV in the GBA from 1990 to 2030...

Association between Tumor Necrosis factor-Alpha(TNF-a) polymorphisms and Schizophrenia: an updated meta-analysis

Sidi He, Lei Zhang, Shunying Yu, Wenjuan Yu, Yimin Yu, Jingjing Huang & Huafang Li
Previous studies have explored associations between Tumour Necrosis factor-Alpha (TNF-a) polymorphisms and Schizophrenia. Their results were controversial. We conducted a meta-analysis to clarify the association between TNF-a − 308 G/A(rs1800629), −1031T/C(rs1799964), −863C/A(rs1800630) and −857 C/T (rs1799724) polymorphisms and Schizophrenia. All the studies that investigated the association between TNF-a polymorphisms and Schizophrenia published before 15 October 2020 were included in. The literature were comprehensively searched and identified in 2 English databases and 2 Chinese databases. The...

Hsa_circ_0101432 promotes the development of hepatocellular carcinoma (HCC) by adsorbing miR-1258 and miR-622

Haibo Zou, Xiangang Xu, Lanyun Luo, Yu Zhang, Le Luo, Yutong Yao, Guangming Xiang, Xiaolun Huang & Guan Wang
The present research was major in investigating the regulation association among hsa_circ_0101432 (has_circ_RPPH1), miR-1258, miR-622 and MAPK1 in hepatocellular carcinoma (HCC), and we explored the mechanism underlying pathogenesis of HCC. Microarray analysis was employed to detect hsa_circ_0101432 expression in HCC. Hsa_circ_0101432 was verified as a circRNA by testing divergent primers and RNase R. And qRT-PCR was performed to determine the expression of hsa_circ_0101432, miR-1258, miR-622 and MAPK1 mRNA. Furthermore, miRanda predicted that mRNAs targeted miR-1258...

Formation and characterization of Pt-Cu-IPMC with high specific surface area and dendritic electrode

Aifen Tian, Jiahua Li, Xixi Wang, Yue Sun, Xinrong Zhang, Shanshan Yao & Huiling Du
Ionic polymer–metal composite (IPMC) is a kind of electroactive intelligent material. The dendritically interfacial electrodes (DIEs) is very important to the performance of IPMC. Herein, the copper–platinum composite electrode (Pt-Cu-IPMC) with a high specific area DIEs was prepared by combining impregnation-reduction plating platinum (IRP-Pt), autocatalytic plating platinum (ACP-Pt) and chemical reduction plating copper (CRP-Cu). The effects of DIEs and the cycles of ACP-Pt have been systematically investigated on the electrode’s thickness, micro-morphology and electromechanical response...

N(6)-adenosine-methyltransferase-14 promotes glioma tumorigenesis by repressing argininosuccinate synthase 1 expression in an m6A-dependent manner

You-Qing Miao, Wei Chen, Jianfeng Zhou, Qiyang Shen, Ying Sun, Tao Li & Sheng-Chan Wang
Glioma is one of the leading causes of tumor-related deaths worldwide, but its potential mechanism remains unclear. This study aimed to explore the biological role and potential mechanism of argininosuccinate synthase 1 (ASS1) in glioma. The relative expression levels of ASS1 in glioma specimens and cell lines were calculated by quantitative reverse transcription-polymerase chain reaction (qRT-PCR) and Western blotting. The biological functions of ASS1 were demonstrated using the 5-ethynyl-2ʹ-deoxyuridine (EdU) assay, transwell assay, and in...

Upstream stimulatory factor 2 (USF2) induced upregulation of triggering receptor expressed on myeloid cells 1 (TREM1) promotes endometritis by regulating toll-like receptor (TLR) 2/4-nuclear factor-kappaB (NF-κB) signaling pathway

Miao Zhang, Chengkun Yin, Yan Chen, Juan Wang & Jing Jiang
Triggering receptor expressed on myeloid cells 1 (TREM1) participates in the development of endometritis. This study aims at identifying the effects and interaction of TREM1 and upstream stimulatory factor 2 (USF2) in endometritis by using a model of lipopolysaccharide (LPS)-induced human endometrial epithelial cells (HEnEpCs). ELISA was performed to determine the levels of interleukin (IL)-6, IL-1β, and tumor necrosis factor (TNF-α) after LPS stimulation. TREM1 and USF2 expression was examined with RT-qPCR and Western blot....

Vascular smooth muscle cell-derived hydrogen sulfide promotes atherosclerotic plaque stability via TFEB (transcription factor EB)-mediated autophagy

Zhenzhen Chen, Chenxi Ouyang, Haizeng Zhang, Yuanrui Gu, Yue Deng, Congkuo Du, Changting Cui, Shuangyue Li, Wenjie Wang, Wei Kong, Jingzhou Chen, Jun Cai & Bin Geng
Vascular smooth muscle cells (VSMCs) contribute to plaque stability. VSMCs are also a major source of CTH (cystathionine gamma-lyase)-hydrogen sulfide (H2S), a protective gasotransmitter in atherosclerosis. However, the role of VSMC endogenous CTH-H2S in pathogenesis of plaque stability and the mechanism are unknown. In human carotid plaques, CTH expression in ACTA2+ cells was dramatically downregulated in lesion areas in comparison to non-lesion areas. Intraplaque CTH expression was positively correlated with collagen content, whereas there was...

Knockdown of circ_0001679 alleviates lipopolysaccharide-induced MLE-12 lung cell injury by regulating the miR-338-3p/ mitogen-activated protein kinase 1 axis

Shenggui Lu, Xinmiao Wu, Shuai Xin, Jing Zhang, Hanying Lin, Yu Miao & Yixin Li
The upregulation of circ_0001679 was reported in lipopolysaccharide (LPS)-induced lung injury mouse model, but its functional roles and mechanisms in LPS-induced lung injury remain to be investigated. In this study, we aimed to explore the potential role of circ_0001679 in septic acute lung injury. We initially established an in vitro lung cell injury model using LPS-treated MLE-12 cells. siRNAs targeting circRNA_0001679 were employed to stably knock down circRNA_0001679, followed by functional assays to investigate the...

RT-LAMP assay for rapid detection of the R203M mutation in SARS-CoV-2 Delta variant

Jianing Yang, Xuejiao Hu, Wenzhuo Wang, Yujing Yang, Xinqiang Zhang, Wei Fang, Lei Zhang, Shan Li & Bing Gu
The highly infectious Delta variant strain of SARS-CoV-2 remains globally dominant and undermines COVID-19 vaccines. Rapid detection of the Delta variant is crucial for the identification and quarantine of infected individuals. In this study, our aim was to design and validate a genotyping RT-LAMP method to detect Delta variants specifically. R203M in the N gene of SARS-CoV-2 was chosen as the Delta variant-specific mutation for genotyping. To target the R203M-harboring region and the conserved sequence...

RT-LAMP assay for rapid detection of the R203M mutation in SARS-CoV-2 Delta variant

Jianing Yang, Xuejiao Hu, Wenzhuo Wang, Yujing Yang, Xinqiang Zhang, Wei Fang, Lei Zhang, Shan Li & Bing Gu
The highly infectious Delta variant strain of SARS-CoV-2 remains globally dominant and undermines COVID-19 vaccines. Rapid detection of the Delta variant is crucial for the identification and quarantine of infected individuals. In this study, our aim was to design and validate a genotyping RT-LAMP method to detect Delta variants specifically. R203M in the N gene of SARS-CoV-2 was chosen as the Delta variant-specific mutation for genotyping. To target the R203M-harboring region and the conserved sequence...

Establishment of a subcutaneous adipogenesis model and distinct roles of LKB1 regulation on adipocyte lipid accumulation in high-altitude Bos grunniens

Yongqi Yue, Yonglin Hua, Jing Zhang, Yu Guo, Dan Zhao, Wentao Huo, Yan Xiong, Fenfen Chen, Yaqiu Lin, Xianrong Xiong & Jian Li
The domestic yak was regarded as a valuable model to explore the molecular mechanism of high-altitude animal adaptation, including the extreme tolerance of starvation and cold stress, which is closely associated with specifically seasonal deposition and metabolism of subcutaneous adipose tissue. However, the key regulators for these processes remain largely unknown. Here, the yak adipogenesis model in vitro was established and liver kinase b1 (LKB1) was regarded as a key negative regulator involved in yak...

Physicochemical properties of dietary protein as predictors for digestibility or releasing percentage of amino acids in monogastrics under in-vitro conditions

Yuan Zhao, Yaru Zhu, Guixin Qin, Li Pan, Hui Sun, Nan Bao, Mostafa Mohamed Hasham & Mohammed Hamdy Farouk
The nutritional values of the protein are related to its amino acid content, and its physicochemical properties. We aimed to determine the relationship between the variation of protein digestibility or the releasing coefficient of amino acids with the physicochemical properties of different feedstuffs. We analysed the secondary protein structure and solubility of 10 protein-rich feed ingredients, including soybean, soybean meal, dehulled soybean meal, fermented soybean meal, distiller’s dried grains with solubles (DDGS), feather meal, fish...

Physicochemical properties of dietary protein as predictors for digestibility or releasing percentage of amino acids in monogastrics under in-vitro conditions

Yuan Zhao, Yaru Zhu, Guixin Qin, Li Pan, Hui Sun, Nan Bao, Mostafa Mohamed Hasham & Mohammed Hamdy Farouk
The nutritional values of the protein are related to its amino acid content, and its physicochemical properties. We aimed to determine the relationship between the variation of protein digestibility or the releasing coefficient of amino acids with the physicochemical properties of different feedstuffs. We analysed the secondary protein structure and solubility of 10 protein-rich feed ingredients, including soybean, soybean meal, dehulled soybean meal, fermented soybean meal, distiller’s dried grains with solubles (DDGS), feather meal, fish...

HOTAIR mediates cisplatin resistance in nasopharyngeal carcinoma by regulating miR-106a-5p/SOX4 axis

Wei Cao, Yi Sun, Long Liu, Junwei Yu, Jiabiao Ji, Yatang Wang & Jianming Yang
This study explored the function and mechanisms of HOX transcript antisense RNA (HOTAIR) in the drug resistance of nasopharyngeal carcinoma (NPC). Quantitative PCR, Western blotting, MTT assay, flow cytometry, Transwell assay, and luciferase assay were performed. HOTAIR expression levels were upregulated in cisplatin (DDP)-resistant NPC tissues and cells. Knockdown of HOTAIR in DDP-resistant NPC cells increased cell sensitivity of DDP, as well as decreased cell viability, expression of chemoresistance-related proteins, migration and invasion, increased cell...

Hsa-miR-186-3p suppresses colon cancer progression by inhibiting KRT18/MAPK signaling pathway

Tian Xia, Zhiyong Zhang, Xin Zhang & Quanfu Li
This study aimed to determine the effect of miR-186-3p and KRT18 interaction on the biological behavior of colon cancer cells. A biotin-microRNA pull-down assay was performed to identify potential miRNAs. qRT-PCR was used to verify the KRT18 and miR-186-3p levels. In addition, Western blotting was used to detect the KRT18 protein levels. The functional connection between KRT18 and miR-186-3p was confirmed using a dual luciferase reporter assay. BrdU incorporation, MTT assay, and flow cytometry were...

Hsa-miR-186-3p suppresses colon cancer progression by inhibiting KRT18/MAPK signaling pathway

Tian Xia, Zhiyong Zhang, Xin Zhang & Quanfu Li
This study aimed to determine the effect of miR-186-3p and KRT18 interaction on the biological behavior of colon cancer cells. A biotin-microRNA pull-down assay was performed to identify potential miRNAs. qRT-PCR was used to verify the KRT18 and miR-186-3p levels. In addition, Western blotting was used to detect the KRT18 protein levels. The functional connection between KRT18 and miR-186-3p was confirmed using a dual luciferase reporter assay. BrdU incorporation, MTT assay, and flow cytometry were...

Transcriptome profiling of morphogenetic differences between contour and flight feathers in duck

Qian Xu, Yang Xi, Shengchao Ma, Jianmei Wang, Junpeng Li, Chunchun Han, Liang Li, Jiwen Wang & Hehe Liu
1. This study examined the transcriptomic profiles of contour and flight feather follicles from two duck breeds to determine the molecular network and the candidate genes associated with contour and flight feather morphogenesis. 2. High-throughput RNA sequencing was performed to compare differences in feather follicles between contour and flight feathers in two duck breeds (Heiwu and Nonghua duck). 3. Comparing the contour feather follicles with flight feather follicles, 4,757 and 4,820 differentially expressed genes (DEGs)...

Circular RNA protein tyrosine kinase 2 (circPTK2) promotes colorectal cancer proliferation, migration, invasion and chemoresistance

Zhipeng Jiang, Zehui Hou, Wei Liu, Zhuomin Yu, Zhiqiang Liang & Shuang Chen
The dysregulated circular RNAs (circRNAs) are linked to progression and chemoresistance in colorectal cancer (CRC). However, the role of circRNA protein tyrosine kinase 2 (circPTK2) in CRC progression and chemoresistance is uncertain. The circPTK2, microRNA (miR)-136-5p, m6A ‘reader’ protein YTH domain family protein 1 (YTHDF1), β-catenin and cyclin D1 abundances were examined via quantitative reverse transcription PCR or Western blotting. The progression was investigated by cell counting kit-8 (CCK-8), colony formation, transwell and xenograft analysis....

lncRNA ZFPM2-AS1 promotes retinoblastoma progression by targeting microRNA miR-511-3p/paired box protein 6 (PAX6) axis

Wenchang Ni, Zhen Li & Kui Ai
Long non-coding RNAs (lncRNAs) have been shown to play crucial roles in retinoblastoma progression. In this study, we aimed to investigate the mechanism of lncRNA ZFPM2-AS1 (ZFPM2-AS1) in retinoblastoma progression. Quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) and Western blotting assays were performed to determine the expression of lncRNA, microRNA (miRNA), mRNA, and protein. The changes in cell proliferation, apoptosis, and cell migration were assessed by functional experiments. The interaction between ZFPM2-AS1, miR-511-3p, and paired...

lncRNA ZFPM2-AS1 promotes retinoblastoma progression by targeting microRNA miR-511-3p/paired box protein 6 (PAX6) axis

Wenchang Ni, Zhen Li & Kui Ai
Long non-coding RNAs (lncRNAs) have been shown to play crucial roles in retinoblastoma progression. In this study, we aimed to investigate the mechanism of lncRNA ZFPM2-AS1 (ZFPM2-AS1) in retinoblastoma progression. Quantitative reverse transcriptase polymerase chain reaction (qRT-PCR) and Western blotting assays were performed to determine the expression of lncRNA, microRNA (miRNA), mRNA, and protein. The changes in cell proliferation, apoptosis, and cell migration were assessed by functional experiments. The interaction between ZFPM2-AS1, miR-511-3p, and paired...

RETRACTED ARTICLE: Degradable poly-L-lysine-modified PLGA cell microcarriers with excellent antibacterial and osteogenic activity

Hanyang Zhang, Jianhang Jiao & Hui Jin
We, the Editors, Authors and Publisher of the journal Artificial Cells, Nanomedicine, and Biotechnology, have retracted the following article: Hanyang Zhang, Jianhang Jiao & Hui Jin (2019) Degradable poly-L-lysine-modified PLGA cell microcarriers with excellent antibacterial and osteogenic activity. Artificial Cells, Nanomedicine, and Biotechnology, 47:1, 2391–2404, DOI: 10.1080/21691401.2019.1623230 Since publication, the authors continued their study and found that the original experimental results were unverifiable. The authors checked their data and confirmed there are fundamental errors present....

Nucleosides and amino acids, isolated from Cordyceps sinensis, protected against cyclophosphamide-induced myelosuppression in mice

Yu Zhang, Jie Liu, Yan Wang, Chengpeng Sun, Wenjia Li, Jianjian Qiu, Yanling Qiao, Fan Wu, Xiaokui Huo, Yue An, Baojing Zhang, Shuangcheng Ma, Jian Zheng & Xiaochi Ma
The material basis of Cordyceps sinensis (Berk.) Sacc has not yet been well understood and natural C. sinensis resources are very rare. The present study aimed to clarify the substance basis and compare the protective effect of natural and artificially-cultivated C. sinensis against cyclophosphamide (CTX)-induced myelosuppression. Both natural and artificially-cultivated C. sinensis effectively improved CTX-induced decrease of peripheral blood counts and hemopoietic growth factors, pathological changes, and apoptosis of bone marrow. Importantly, artificially-cultivated C. sinensis...

Uric acid, as a double-edged sword, affects the activity of epidermal growth factor (EGF) on human umbilical vein endothelial cells by regulating aging process

Yuan Li, Linru Zhao & Wufang Qi
Uric acid (UA) is the main metabolite of the human body. Although UA is only a product of metabolism, it is important biological regulator. Epidermal growth factor (EGF) has important biological functions. However, so far, the effect of UA on EGF’s activity has not been revealed. For this, in the current study, we systematically studied the effect of OA on the biological activity of EGF. Human Umbilical Vein Endothelial Cells (HUVECs) were used as an...

Rare earth elements in the iron-oxide apatite (IOA) deposit: insights from apatite

Shengchao Yan & Wei Liu
Kiruna-type or IOA deposits are characterized by magnetite-apatite-actinolite associations and may contain considerable amounts of rare earth elements (REEs) that can be exploited as by-products. REEs in the Kiruna-type deposit, heterogeneously distributed, are mainly hosted in phosphates (e.g. apatite). Published data of apatite, together with other evidence, can be used to decipher the source, enrichment mechanism, and post-ore modification of REEs in the Kiruna-type deposits. Sr isotopes and melt inclusions compositions of apatite, together with...

RAS protein activator like 2 promotes the proliferation and migration of pulmonary artery smooth muscle cell through AKT/mammalian target of Rapamycin complex 1 pathway in pulmonary hypertension

Sheng Hu, Youguang Zhao, Chenming Qiu & Ying Li
RAS protein activator like 2 (Rasal2) exerts pro-proliferative effect in several types of cells. However, whether Rasal2 is involved in the regulation of pulmonary artery smooth muscle cell (PASMC) remains unclear. In the current study, we explored the role of Rasal2 in proliferation and migration of PASMC during the development of pulmonary arterial hypertension (PAH). We found that the protein level of Rasal2 was increased in both pulmonary arteries of chronic hypoxia-induced pulmonary hypertension (CH-PH)...

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