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https://www.readbyqxmd.com/read/29713982/the-impact-of-environmental-pollution-on-public-health-expenditure-dynamic-panel-analysis-based-on-chinese-provincial-data
#1
Yu Hao, Shuang Liu, Zhi-Nan Lu, Junbing Huang, Mingyuan Zhao
In recent years, along with rapid economic growth, China's environmental problems have become increasingly prominent. At the same time, the level of China's pollution has been growing rapidly, which has caused huge damages to the residents' health. In this regard, the public health expenditure ballooned as the environmental quality deteriorated in China. In this study, the effect of environmental pollution on residents' health expenditure is empirically investigated by employing the first-order difference generalized method of moments (GMM) method to control for potential endogeneity...
May 1, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29703907/microrna-199a-5p-induces-apoptosis-by-targeting-junb
#2
Mengjie Yan, Sibao Yang, Fanbo Meng, Zhihui Zhao, Zhisen Tian, Ping Yang
MicroRNAs participate in a variety of physiological and pathophysiological processes in various organs including the heart. Our previous work revealed that the level of miR-199a-5p was significantly higher in failing hearts than in control hearts. However, whether it is associated with the progression of heart failure (HF) and mediates cardiomyocyte apoptosis remained unclear. In the present study, we used various biochemical and molecular biological approaches to investigate the changes in miR-199a-5p levels in failing hearts in a rat model induced by acute myocardial infarction...
April 27, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29689246/il-13-is-produced-by-tumor-cells-in-breast-implant-associated-anaplastic-large-cell-lymphoma-implications-for-pathogenesis
#3
Marshall E Kadin, John Morgan, Haiying Xu, Alan L Epstein, David Sieber, Bradley A Hubbard, William P Adams, Carlos E Bacchi, Joao C S Goes, Mark W Clemens, L Jeffrey Medeiros, Roberto N Miranda
More than 500 women worldwide have developed a CD30+ T-cell lymphoma around breast implants, strongly suggesting a cause and effect relationship, and designated as breast implant-associated anaplastic large cell lymphoma (BIA-ALCL). The mechanism of lymphomagenesis is unknown. Recently, a bacterial biofilm containing gram negative bacilli was discovered on the surface of breast implants associated with ALCL. We and others have described overexpression of the proto-oncogene JUNB and mutations of JAK1/2, TP53 and STAT3 in BIA-ALCL...
April 21, 2018: Human Pathology
https://www.readbyqxmd.com/read/29669735/ctgf-vegfa-activated-fibroblasts-promote-tumor-migration-through-micro-environmental-modulation
#4
Wei Wu, Esther A Zaal, Celia R Berkers, Simone Lemeer, Albert J R Heck
Fibroblast activation is associated with tumour progression and implicated in metastasis, but the initial triggering signals required to kick-start this process remain largely unknown. Since small cancerous lesions share limited physical contact with neighboring fibroblasts, we reasoned the first tumour-derived signal for fibroblast activation should be secreted and diffusible. By pulsed metabolic labeling and click-chemistry based affinity enrichment, we sieved through the ductal carcinoma secretome for potential fibroblast activators...
April 18, 2018: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29665093/the-mapk-activator-protein-1-signaling-regulates-changes-in-lung-tissue-of-rat-exposed-to-hypobaric-hypoxia
#5
Mrinalini Singh, Seema Yadav, Meetul Kumar, Shweta Saxena, Deepika Saraswat, Anju Bansal, Shashi B Singh
This study reports the role of MAPKs (JNK, ERK, and p38), and activator protein-1 (AP-1) transcription factor in the hypobaric hypoxia induced change in lung tissue. Healthy male Sprague-Dawley rats were exposed to hypobaric hypoxia for 6, 12, 24, 48, 72, and 120 hr. Hypoxia resulted in significant increase in reactive oxygen species (ROS), vascular endothelial growth factor (VEGF) and decreased nitric oxide (NO), these act as signaling molecules for activation of MAPK and also contribute in development of vascular leakage (an indicator of pulmonary edema) as confirmed by histological studies...
April 17, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29656141/wnt5a-suppresses-inflammation-driven-intervertebral-disc-degeneration-via-a-tnf-%C3%AE-nf-%C3%AE%C2%BAb-wnt5a-negative-feedback-loop
#6
Z Li, K Zhang, X Li, H Pan, S Li, F Chen, J Zhang, Z Zheng, J Wang, H Liu
OBJECTIVE: This study was to investigate the molecular role of Wnt5a on inflammation-driven intervertebral disc degeneration (IVDD). METHODS: The expression of Wnt5a was analyzed in human nucleus pulposus (NP) tissues with immunohistochemical staining. The effects of Wnt5a on matrix production were assessed by RT-qPCR and western blotting. Small interfering RNAs (siRNAs), promoter deletion assay, and promoter binding site mutant were used to reveal the molecular role of Wnt5a in TNF-α-induced matrix metalloproteinase (MMP) expression...
April 12, 2018: Osteoarthritis and Cartilage
https://www.readbyqxmd.com/read/29653292/the-study-on-polymorphisms-of-sep15-and-trxr2-and-the-expression-of-ap-1-signaling-pathway-in-kashin-beck-disease
#7
RuiPeng Wu, RongQiang Zhang, YongMin Xiong, WenYan Sun, YuanYuan Li, XiaoLi Yang, JiFeng Liu, Yong Jiang, Hao Guo, XiaoYan Mo, JunLing Cao
The aim of the study was to investigate the association between rs5859 in Sep15, rs1139793 in TrxR2 polymorphisms with the risks of KBD and to detect the expression of AP-1 pathway in KBD subjects and in vitro. 208 KBD and 206 control subjects were included. PCR-Restriction Fragment Length Polymorphism (RFLP), Amplification Refractory Mutation Specific-PCR (ARMS-PCR) and Western Blotting were conducted. The results showed the minor A-allele frequency of rs5859 in KBD was statistically significantly higher than that in the control group (P < 0...
April 10, 2018: Bone
https://www.readbyqxmd.com/read/29629343/identification-of-epithelial-mesenchymal-transition-related-target-genes-induced-by-the-mutation-of-smad3-linker-phosphorylation
#8
Sujin Park, Kyung-Min Yang, Yuna Park, Eunji Hong, Chang Pyo Hong, Jinah Park, Kyoungwha Pang, Jihee Lee, Bora Park, Siyoung Lee, Haein An, Mi-Kyung Kwak, Junil Kim, Jin Muk Kang, Pyunggang Kim, Yang Xiao, Guangjun Nie, Akira Ooshima, Seong-Jin Kim
Background: Smad3 linker phosphorylation plays essential roles in tumor progression and metastasis. We have previously reported that the mutation of Smad3 linker phosphorylation sites (Smad3-Erk/Pro-directed kinase site mutant constructs [EPSM]) markedly reduced the tumor progression while increasing the lung metastasis in breast cancer. Methods: We performed high-throughput RNA-Sequencing of the human prostate cancer cell lines infected with adenoviral Smad3-EPSM to identify the genes regulated by Smad3-EPSM...
March 2018: Journal of Cancer Prevention
https://www.readbyqxmd.com/read/29587652/quantitative-profiling-of-batf-family-proteins-junb-irf-hetero-trimers-using-spec-seq
#9
Yiming K Chang, Zheng Zuo, Gary D Stormo
BACKGROUND: BATF family transcription factors (BATF, BATF2 and BATF3) form hetero-trimers with JUNB and either IRF4 or IRF8 to regulate cell fate in T cells and dendritic cells in vivo. While each combination of the hetero-trimer has a distinct role, some degree of cross-compensation was observed. The basis for the differential actions of IRF4 and IRF8 with BATF factors and JUNB is still unknown. We propose that the differences in function between these hetero-trimers may be caused by differences in their DNA binding preferences...
March 27, 2018: BMC Molecular Biology
https://www.readbyqxmd.com/read/29556718/multiplex-quantitative-imaging-of-human-myocardial-infarction-by-mass-spectrometry-immunohistochemistry
#10
Aleksandra Aljakna, Estelle Lauer, Sébastien Lenglet, Silke Grabherr, Tony Fracasso, Marc Augsburger, Sara Sabatasso, Aurélien Thomas
Simultaneous assessment of a panel of protein markers is becoming essential in order to enhance biomarker research and improve diagnostics. Specifically, postmortem diagnostics of early myocardial ischemia in sudden cardiac death cases could benefit from a multiplex marker assessment in the same tissue section. Current analytical antibody-based techniques (immunohistochemistry and immunofluorescence) limit multiplex analysis usually to not more than three antibodies. In this study, mass spectrometry-immunohistochemistry (MS-IHC) was performed by combining laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) with rare-metal-isotope-tagged antibodies as a technique for multiplex analysis of human postmortem myocardial tissue samples...
March 19, 2018: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29511684/oncogenic-n-ras-stimulates-srf-mediated-transactivation-via-h3-acetylation-at-lysine-9
#11
Sun-Ju Yi, Seong Yun Hwang, Myung-Ju Oh, Yang-Hoon Kim, Hojin Ryu, Sung-Keun Rhee, Byung H Jhun, Kyunghwan Kim
Signal transduction pathways regulate the gene expression by altering chromatin dynamics in response to mitogens. Ras proteins are key regulators linking extracellular stimuli to a diverse range of biological responses associated with gene regulation. In mammals, the three ras genes encode four Ras protein isoforms: H-Ras, K-Ras4A, K-Ras4B, and N-Ras. Although emerging evidence suggests that Ras isoforms differentially regulate gene expressions and are functionally nonredundant, the mechanisms underlying Ras specificity and Ras signaling effects on gene expression remain unclear...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29499909/increased-mtor-cancels-out-the-effect-of-reduced-xbp-1-on-antibody-secretion-in-il-1%C3%AE-deficient-b-cells
#12
Gaizhi Zhu, Xiaoling Liu, Ying Fang, Bing Zhai, Ruonan Xu, Gencheng Han, Guojiang Chen, He Xiao, Chunmei Hou, Beifen Shen, Yan Li, Yoichiro Iwakura, Liang Wang, Zhenyu Jiang, Ning Ma, Guangchao Liu, Renxi Wang
IL-1α in vitro promotes immunoglobulin secretion by inducing proliferation of mature B cells, whereas IL-1α deficiency has no effect on in vivo antibody production. However, the reason IL-1α deficiency does not reduce in vivo antibody production is still unclear. In this study, we found that similar as in vivo data, IL-1α deficiency did not affect antibody production in in vitro LPS-stimulated B cells. Surprisingly, LPS-stimulated IL-1α-/- B cells reduced a key antibody production-related transcription factor X-box binding protein 1 (Xbp-1) expression...
February 24, 2018: Cellular Immunology
https://www.readbyqxmd.com/read/29467861/induction-of-apoptosis-by-an-oleanolic-acid-derivative-in-smmc-7721-human-hepatocellular-carcinoma-cells-is-associated-with-mitochondrial-dysfunction
#13
Xinfeng Fan, Penglong Wang, Yaogui Sun, Junbing Jiang, Haiyuan Du, Zhirui Wang, Zhibian Duan, Haimin Lei, Hongquan Li
The aim of the present study was to investigate the effects of an oleanolic acid derivative, a novel antitumor drug, on the growth of SMMC-7721 human hepatocellular carcinoma cells and the underlying mechanism. An MTT assay was performed to determine the cytotoxicity of the oleanolic acid derivative. Cell membrane integrity was assessed using fluorescence microscopy to assess the uptake of annexin V-FITC/propidium iodide (PI). Western blotting was used to detect the apoptosis-associated proteins B cell lymphoma-2 (Bcl-2), Bax, caspase-9 and caspase-3...
March 2018: Oncology Letters
https://www.readbyqxmd.com/read/29382850/a-single-bout-of-electroacupuncture-remodels-epigenetic-and-transcriptional-changes-in-adipose-tissue-in-polycystic-ovary-syndrome
#14
Milana Kokosar, Anna Benrick, Alexander Perfilyev, Emma Nilsson, Thomas Källman, Claes Ohlsson, Charlotte Ling, Elisabet Stener-Victorin
A single bout of electroacupuncture results in muscle contractions and increased whole body glucose uptake in women with polycystic ovary syndrome (PCOS). Women with PCOS have transcriptional and epigenetic alterations in the adipose tissue and we hypothesized that electroacupuncture induces epigenetic and transcriptional changes to restore metabolic alterations. Twenty-one women with PCOS received a single bout of electroacupuncture, which increased the whole body glucose uptake. In subcutaneous adipose tissue biopsies, we identified treatment-induced expression changes of 2369 genes (Q < 0...
January 30, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29368634/binding-and-entry-of-peste-des-petits-ruminants-virus-into-caprine-endometrial-epithelial-cells-profoundly-affect-early-cellular-gene-expression
#15
Bo Yang, Xuefeng Qi, Zhijie Chen, Shuying Chen, Qinghong Xue, Peilong Jia, Ting Wang, Jingyu Wang
Peste des petits ruminants virus (PPRV), the etiological agent of peste des petits ruminants (PPR), causes an acute or subacute disease in small ruminants. Although abortion is observed in an unusually large proportion of pregnant goats during outbreaks of PPR, the pathogenic mechanism underlying remains unclear. Here, the gene expression profile of caprine endometrial epithelial cells (EECs) infected with PPRV Nigeria 75/1 was determined by DNA microarray to investigate the cellular response immediately after viral entry...
January 24, 2018: Veterinary Research
https://www.readbyqxmd.com/read/29362873/molecular-tissue-changes-in-early-myocardial-ischemia-from-pathophysiology-to-the-identification-of-new-diagnostic-markers
#16
REVIEW
Aleksandra Aljakna, Tony Fracasso, Sara Sabatasso
Diagnosing early myocardial ischemia (the initial 4 to 6 h after interruption of blood flow to part of the myocardium) remains a challenge for clinical and forensic pathologists. Several immunohistochemical markers have been proposed for improving postmortem detection of early myocardial ischemia; however, no single marker appears to be both sufficiently specific as well as sensitive. This review summarizes the diverse categories of molecular tissue markers that have been investigated in human autopsy samples with acute myocardial infarction as well as in the well-established and widely used in vivo animal model of early myocardial ischemia (permanent ligation of the coronary artery)...
March 2018: International Journal of Legal Medicine
https://www.readbyqxmd.com/read/29351928/mapping-and-quantification-of-over-2000-o-linked-glycopeptides-in-activated-human-t-cells-with-isotope-targeted-glycoproteomics-isotag
#17
Christina M Woo, Peder J Lund, Andrew C Huang, Mark M Davis, Carolyn R Bertozzi, Sharon J Pitteri
Post-translational modifications (PTMs) on proteins often function to regulate signaling cascades, with the activation of T cells during an adaptive immune response being a classic example. Mounting evidence indicates that the modification of proteins by O-linked N-acetylglucosamine (O-GlcNAc), the only mammalian glycan found on nuclear and cytoplasmic proteins, helps regulate T cell activation. Yet, a mechanistic understanding of how O-GlcNAc functions in T cell activation remains elusive, partly because of the difficulties in mapping and quantifying O-GlcNAc sites...
April 2018: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/29312637/notch-signaling-negatively-regulates-bmp9-induced-osteogenic-differentiation-of-mesenchymal-progenitor-cells-by-inhibiting-junb-expression
#18
Nan Wang, Wei Liu, Tao Tan, Chao-Qun Dong, Duan-Yang Lin, Jun Zhao, Chang Yu, Xiao-Ji Luo
Although interaction between BMP and Notch signaling has been demonstrated to be crucial for osteogenic differentiation of mesenchymal stem cells (MSCs), the precise molecular mechanism remains unknown. Here, we show that Notch intracellular domain (NICD) overexpression inhibits BMP9-induced C3H10T1/2 cell osteogenesis in vivo and in vitro . Our results show that activated Notch signaling results in down-regulation of Runx2 and early osteogenesis differentiation factors, without affecting p-Smad1/5/8 expression, and that blocking Notch signaling with DAPT (N-[N-(3,5-difluorophenacetyl)-L-alanyl]-S-phenylglycine t-butyl ester) significantly increases p-Smad1/5/8 expression...
December 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/29311664/calhm2-governs-astrocytic-atp-releasing-in-the-development-of-depression-like-behaviors
#19
M Jun, Q Xiaolong, Y Chaojuan, P Ruiyuan, W Shukun, W Junbing, H Li, C Hong, C Jinbo, W Rong, L Yajin, M Lanqun, W Fengchao, W Zhiying, A Jianxiong, W Yun, Z Xia, Z Chen, Y Zengqiang
This corrects the article DOI: 10.1038/mp.2017.229.
April 2018: Molecular Psychiatry
https://www.readbyqxmd.com/read/29290775/nuclear-egfr-and-integrator-super-elongation-complex-concurrently-binds-to-immediate-early-genes-for-gene-transactivation
#20
Victor Chun-Lam Wong
The gene transactivation function of nuclear EGFR (nEGFR) has been studied by investigating the genomic co-occupancies of nEGFR and RNA Polymerase II (RNAPII). However, due to RNAPII pausing, the co-recruitment of RNAPII and nEGFR does not necessarily represent productive transactivation. In this study, we integrated gatekeepers of productive transcriptional elongation such as Integrator and Super Elongation Complex (SEC) to interrogate the function of nEGFR. By analyzing publicly available ChIP-seq and RNA-seq data, we aims to 1) explore the function of nEGFR, 2) unravel nEGFR target genes, and 3) discuss potential mechanisms of nEGFR chromatin recruitment...
2018: Journal of Cancer
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