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https://www.readbyqxmd.com/read/29786749/long-noncoding-rna-myocardial-infarction%C3%A2-associated-transcript-is-associated-with-the-microrna%C3%A2-150%C3%A2-5p-p300-pathway-in-cardiac-hypertrophy
#1
Zhao Li, Yamin Liu, Xiaofan Guo, Guozhe Sun, Qun Ma, Ying Dai, Guangshuo Zhu, Yingxian Sun
In numerous diseases, abnormal expression of myocardial infarction‑associated transcript (MIAT) has been reported to be involved in cell proliferation, apoptosis and migration. However, whether this long non‑coding RNA MIAT has a regulatory effect on heart hypertrophy requires further investigation. To this end, the present study evaluated MIAT in hypertrophic cardiomyocytes in vitro and in vivo. Neonatal rat ventricular myocytes (NRVMs) were induced by isoproterenol (ISO) to create a cell hypertrophy model, and mice were intraperitoneally injected with ISO to establish an animal model...
May 21, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29786712/cocrystals-of-a-1-2-4-thiadiazole-based-potent-neuroprotector-with-gallic-acid-solubility-thermodynamic-stability-relationships-and-formation-pathways
#2
Artem O Surov, Andrei V Churakov, Alexey N Proshin, Xia-Lin Dai, Tongbu Lu, German L Perlovich
Three distinct solid forms, namely anhydrous cocrystals with 2 : 1 and 1 : 1 drug/acid ratios ([TDZ : GA] (2 : 1), [TDZ : GA] (1 : 1)), and a hydrated one having 1 : 1 : 1 drug/acid/water stoichiometry ([TDZ : GA : H2O] (1 : 1 : 1)), have been formed by cocrystallization of the biologically active 1,2,4-thiadiazole derivative (TDZ) with gallic acid (GA). The thermodynamic stability relationships between the cocrystals were rationalized in terms of Gibbs energies of the formation reactions and further verified by performing a set of competitive and exchange mechanochemical reactions...
May 22, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29786660/molecular-targets-of-active-anticancer-compounds-derived-from-marine-sources
#3
REVIEW
Xiaoping Song, Ying Xiong, Xin Qi, Wei Tang, Jiajia Dai, Qianqun Gu, Jing Li
Over the past decades, a number of novel compounds, which are produced in the marine environment, have been found to exhibit the anticancer effects. This review focuses on molecular targets of marine-derived anticancer candidates in clinical and preclinical studies. They are kinases, transcription factors, histone deacetylase, the ubiquitin-proteasome system, and so on. Specific emphasis of this review paper is to provide information on the optimization of new target compounds for future research and development of anticancer drugs, based on the identification of structures of these target molecules and parallel compounds...
May 22, 2018: Marine Drugs
https://www.readbyqxmd.com/read/29786451/annexin-a2-is-a-robo4-ligand-that-modulates-arf6-activation-associated-cerebral-trans-endothelial-permeability
#4
Wenlu Li, Zhigang Chen, Jing Yuan, Zhanyang Yu, Chongjie Cheng, Qiuchen Zhao, Lena Huang, Katherine A Hajjar, Zhong Chen, Eng H Lo, Haibin Dai, Xiaoying Wang
Blood-brain barrier (BBB) disruption in neurological disorders remains an intractable problem with limited therapeutic options. Here, we investigate whether the endothelial cell membrane protein annexin A2 (ANXA2) may play a role in reducing trans-endothelial permeability and maintaining cerebrovascular integrity after injury. Compared with wild-type mice, the expression of cerebral endothelial junctional proteins was reduced in E15.5 and adult ANXA2 knockout mice, along with increased leakage of small molecule tracers...
January 1, 2018: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29785780/electrochemical-reduction-of-co2-to-ch3oh-on-hierarchical-pd-sno2-nanosheets-with-abundant-pd-o-sn-interfaces
#5
Wuyong Zhang, Qing Qin, Lei Dai, Ruixuan Qin, Xiaojing Zhao, Xumao Chen, Daohui Ou, Tracy T Chuong, Binghui Wu, Nanfeng Zheng
Electrochemical conversion of CO2 into fuels using electricity generated from renewable sources helps to create an artificial carbon cycle. However, the low efficiency and poor stability hinder the practical use of most conventional electrocatalysts. In this work, a 2D hierarchical Pd/SnO2 structure, ultrathin Pd nanosheets partially capped by SnO2 nanoparticles, is designed to enable multi-electron transfer for selective electroreduction of CO2 into CH3OH. Such a structure design not only enhances the adsorption of CO2 on SnO2, but also weakens the binding strength of CO on Pd due to the as-built Pd-O-Sn interfaces, which is demonstrated to be critical to improve the electrocatalytic selectivity and stability of Pd catalysts...
May 22, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29785433/the-immunomodulatory-activity-and-mechanism-of-docosahexenoic-acid-dha-on-immunosuppressive-mice-models
#6
Lirong Han, Huanna Lei, Ziwei Tian, Xu Wang, Dai Cheng, Chunling Wang
In this study, the immunomodulatory activity of docosahexaenoic acid (DHA) on the immunosuppressive BALB/c mice model and its molecular mechanism are elucidated. It was found that the weight indexes of the spleen and thymus were significantly increased by DHA (44.0 mg kg-1 and 88.0 mg kg-1) treatment in the prevention or cure groups. The result of macrophages showed that DHA (44.0 mg kg-1 and 88.0 mg kg-1) could promote the proliferation and phagocytosis activity of macrophages in the prevention or cure groups...
May 22, 2018: Food & Function
https://www.readbyqxmd.com/read/29785192/-panax-notoginseng-promotes-repair-of-colonic-microvascular-injury-in-sprague-dawley-rats-with-experimental-colitis
#7
Shiying Wang, Ping Tao, Lei Zhao, Wangjun Zhang, Hongyi Hu, Jiang Lin
To investigate the therapeutic effects of PN on intestinal inflammation and microvascular injury and its mechanisms, dextran sodium sulfate- (DSS-) or iodoacetamide- (IA-) induced rat colitis models were used. After colitis model was established, PN was orally administered for 7 days at daily dosage of 1.0 g/kg. Obvious colonic inflammation and mucosal injuries and microvessels were observed in DSS- and IA-induced colitis groups. DAI scores, serum concentrations of VEGFA121, VEGFA165, VEGFA165/VEGFA121, IL-6, and TNF- α , and expression of Rap1GAP and TSP1 proteins in the colon were significantly higher while serum concentrations of IL-4 and IL-10 and MVD in colon were significantly lower in the colitis model groups than in the normal control group...
2018: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/29785178/functionally-graded-bone-and-tendon-like-polyurethane-for-rotator-cuff-repair
#8
Dai Fei Elmer Ker, Dan Wang, Anthony William Behn, Evelyna Tsi Hsin Wang, Xu Zhang, Benjamin Yamin Zhou, Ángel Enrique Mercado-Pagán, Sungwoo Kim, John Kleimeyer, Burhan Gharaibeh, Yaser Shanjani, Drew Nelson, Marc Safran, Emilie Cheung, Phil Campbell, Yunzhi Peter Yang
Critical considerations in engineering biomaterials for rotator cuff repair include bone-tendon-like mechanical properties to support physiological loading and biophysicochemical attributes that stabilize the repair site over the long-term. In this study, UV-crosslinkable polyurethane based on quadrol (Q), hexamethylene diisocyante (H), and methacrylic anhydride (M; QHM polymers), which are free of solvent, catalyst, and photoinitiator, is developed. Mechanical characterization studies demonstrate that QHM polymers possesses phototunable bone- and tendon-like tensile and compressive properties (12-74 MPa tensile strength, 0...
May 2018: Advanced Functional Materials
https://www.readbyqxmd.com/read/29785121/association-between-angiogenesis-and-cytotoxic-signatures-in-the-tumor-microenvironment-of-gastric-cancer
#9
Yi Feng, Ying Dai, Zhihua Gong, Jia-Nan Cheng, Longhui Zhang, Chengdu Sun, Xianghua Zeng, Qingzhu Jia, Bo Zhu
Background: A suppressive immune microenvironment and pathological angiogenesis are hallmarks of gastric cancer. Theoretically, immune checkpoint inhibitors (ICIs) stimulate pre-primed neoantigen-specific T cells, and antiangiogenic agents then facilitate their infiltration into the tumor niche by promoting vascular normalization. Currently, the interconnections of these two phenotypes and their relevance to the tumor microenvironment (TME) have not been fully characterized in gastric cancer...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29785023/hiv-vaccine-candidate-activation-of-hypoxia-and-the-inflammasome-in-cd14-monocytes-is-associated-with-a-decreased-risk-of-siv-mac251-acquisition
#10
Monica Vaccari, Slim Fourati, Shari N Gordon, Dallas R Brown, Massimilano Bissa, Luca Schifanella, Isabela Silva de Castro, Melvin N Doster, Veronica Galli, Maria Omsland, Dai Fujikawa, Giacomo Gorini, Namal P M Liyanage, Hung V Trinh, Katherine M McKinnon, Kathryn E Foulds, Brandon F Keele, Mario Roederer, Richard A Koup, Xiaoying Shen, Georgia D Tomaras, Marcus P Wong, Karissa J Munoz, Johannes S Gach, Donald N Forthal, David C Montefiori, David J Venzon, Barbara K Felber, Margherita Rosati, George N Pavlakis, Mangala Rao, Rafick-Pierre Sekaly, Genoveffa Franchini
Qualitative differences in the innate and adaptive responses elicited by different HIV vaccine candidates have not been thoroughly investigated. We tested the ability of the Aventis Pasteur live recombinant canarypox vector (ALVAC)-SIV, DNA-SIV and Ad26-SIV vaccine prime modalities together with two ALVAC-SIV + gp120 protein boosts to reduce the risk of SIVmac251 acquisition in rhesus macaques. We found that the DNA and ALVAC prime regimens were effective, but the Ad26 prime was not. The activation of hypoxia and the inflammasome in CD14+ CD16- monocytes, gut-homing CCR5-negative CD4+ T helper 2 (TH 2) cells and antibodies to variable region 2 correlated with a decreased risk of SIVmac251 acquisition...
May 21, 2018: Nature Medicine
https://www.readbyqxmd.com/read/29784924/allergy-immunotherapy-restores-airway-epithelial-barrier-dysfunction-through-suppressing-il-25-induced-endoplasmic-reticulum-stress-in-asthma
#11
Xiefang Yuan, Junyi Wang, Yin Li, Xiang He, Bin Niu, Dehong Wu, Nan Lan, Xiaoyun Wang, Yun Zhang, Xi Dai, Xing Wang, Zhigang Liu, Guoping Li
Constant exposure to allergen triggers destructive type 2 cell-mediated inflammation. The effect of allergen specific immunotherapy (SIT) in maintaining airway epithelial barrier function in asthma remains unknown. In the current study, we showed that SIT maintained airway epithelial homeostasis in mice exposed to dermatophagoides farinae (Der f), which induced increased expression of IL-25, endoplasmic reticulum (ER) stress and airway epithelial apoptosis. Meanwhile, SIT treatment ameliorated airway inflammatory infiltration and hyper-responsiveness in allergic mice...
May 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29784818/acoustic-evolution-of-old-italian-violins-from-amati-to-stradivari
#12
Hwan-Ching Tai, Yen-Ping Shen, Jer-Horng Lin, Dai-Ting Chung
The shape and design of the modern violin are largely influenced by two makers from Cremona, Italy: The instrument was invented by Andrea Amati and then improved by Antonio Stradivari. Although the construction methods of Amati and Stradivari have been carefully examined, the underlying acoustic qualities which contribute to their popularity are little understood. According to Geminiani, a Baroque violinist, the ideal violin tone should "rival the most perfect human voice." To investigate whether Amati and Stradivari violins produce voice-like features, we recorded the scales of 15 antique Italian violins as well as male and female singers...
May 21, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29784358/short-probe-based-duplex-specific-nuclease-signal-amplification-strategy-enables-imaging-of-endogenous-micrornas-in-living-cells-with-ultrahigh-specificity
#13
Yingjun Ma, Jun Chen, Danping Chen, Yuzhi Xu, Li Zhang, Zong Dai, Xiaoyong Zou
Specific nucleic acids amplification at a constant and mild temperature is important for imaging assay of endogenous microRNAs (miRNAs) in living cells. Duplex-specific nuclease (DSN) is attractive in one-step isothermal assay of miRNA; however, its intrinsic limitations of low amplification specificity and high reaction temperature greatly restrict the application scope. Herein, we present a short-probe-based DSN signal amplification (spDSNSA) strategy enabling analysis of miRNAs at body temperature with significantly high specificity...
August 15, 2018: Talanta
https://www.readbyqxmd.com/read/29784355/highly-selective-and-sensitive-chemiluminescence-biosensor-for-adenosine-detection-based-on-carbon-quantum-dots-catalyzing-luminescence-released-from-aptamers-functionalized-graphene-magnetic-%C3%AE-cyclodextrin-polymers
#14
Yuanling Sun, Chaofan Ding, Yanna Lin, Weiyan Sun, Hao Liu, Xiaodong Zhu, Yuxue Dai, Chuannan Luo
In this work, a highly selective and sensitive chemiluminescence (CL) biosensor was prepared for adenosine (AD) detection based on carbon quantum dots (CQDs) catalyzing the CL system of luminol-H2 O2 under alkaline environment and CQDs was released from the surface of AD aptamers functionalized graphene @ magnetic β-cyclodextrin polymers (GO@Fe3 O4 @β-CD@A-Apt). Firstly, GO@Fe3 O4 @β-CD and CQDs were prepared and characterized by transmission electron microscopy (TEM), scanning electron microscope (SEM), UV-Vis absorption spectra (UV), fluorescence spectra (FL), fourier transform infrared (FTIR) and X-ray powder diffraction (XRD)...
August 15, 2018: Talanta
https://www.readbyqxmd.com/read/29784335/gas-phase-complexation-of-%C3%AE-%C3%AE-cyclodextrin-with-amino-acids-studied-by-ion-mobility-mass-spectrometry-and-molecular-dynamics-simulations
#15
Yinjuan Chen, Zhicheng Zuo, Xinhua Dai, Peng Xiao, Xiang Fang, Xuefeng Wang, Wenning Wang, Chuan-Fan Ding
Cyclodextrins (CDs) are a class of macrocyclic molecules that have exhibited many promising applications in various fields. The knowledge of the complexation modes and recognition mechanisms of CDs with their guests are of paramount importance for rational design of more variants with controlled properties. Herein we investigated the binding conformations and the structural characteristics of α-/β-CD with three amino acids (AA, AA=Gly, L-Leu, L-Phe) in the gas phase by a combined experimental and computational approach...
August 15, 2018: Talanta
https://www.readbyqxmd.com/read/29784003/bi-directional-regulation-of-cartilage-metabolism-by-inhibiting-bet-proteins-analysis-of-the-effect-of-i-bet151-on-human-chondrocytes-and-murine-joints
#16
Jin Dai, Sheng Zhou, Qiting Ge, Jinzhong Qin, Dongyang Chen, Zhihong Xu, Dongquan Shi, Jianxin Li, Huangxian Ju, Yi Cao, Minghao Zheng, Chao Jun Li, Xiang Gao, Huajian Teng, Qing Jiang
BACKGROUND: Proinflammatory cytokines, which can upregulate the expression of matrix-degrading enzymes in chondrocytes, play important roles in the development of osteoarthritis. And a BET protein inhibitor, I-BET151, has been shown to exert an anti-inflammatory effect by repressing the BET protein-mediated expression of inflammatory genes. Our objective is to investigate the effect of I-BET151 on a surgical mouse model of osteoarthritis (OA) and human chondrocytes. METHODS: We first treated a surgical mouse model of OA with I-BET151 once per day and evaluated the knee joints at 6 and 8 weeks after treatment...
May 21, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29783992/a-review-of-the-risk-factors-genetics-and-treatment-of-endometriosis-in-chinese-women-a-comparative-update
#17
REVIEW
Yi Dai, Xiaoyan Li, Jinghua Shi, Jinhua Leng
Endometriosis is one of the major causes of economic burden and compromised quality of life in a very large percentage of Asian women. While it is perceived as a benign condition, recent research has shown that it may be a significant cause of infertility and metastatic cancer. It has also been associated with other diseases linked to the functioning of the immune system. Genetic as well as environmental factors are known to affect the manifestation and progression of endometriosis. This review aims to summarize recent research pertaining to the risk factors, diagnosis and treatment of endometriosis in Chinese women...
May 21, 2018: Reproductive Health
https://www.readbyqxmd.com/read/29783189/sall2-knockdown-exacerbates-palmitic-acid-induced-dysfunction-and-apoptosis-of-pancreatic-nit-1-beta-cells
#18
Ye Wang, Jie Liu, Zheng Liu, Jing Chen, Xuemei Hu, Yimeng Hu, Yin Yuan, Guijun Wu, Zhe Dai, Yancheng Xu
Spalt-like (Sall) proteins are a class of transcription factors. The role of Sall2 in beta cells remain poorly understood. Here, we aimed to explore whether Sall2 involved in lipotoxicity-mediated dysfunction and apoptosis in pancreatic NIT-1 beta cells. Our results showed that high concentrations of palmitic acid (PA) led to impaired cell viability and decreased Sall2 expression in NIT-1 cells. Knocking down of Sall2 in NIT-1 cells resulted in increased sensitivity to lipotoxicity and caused higher rates of cell apoptosis following PA treatment...
May 18, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29783158/pirfenidone-ameliorates-lipopolysaccharide-induced-pulmonary-inflammation-and-fibrosis-by-blocking-nlrp3-inflammasome-activation
#19
Yi Li, Haitao Li, Shuai Liu, Pinhua Pan, Xiaoli Su, Hongyi Tan, Dongdong Wu, Lemeng Zhang, Chao Song, Minhui Dai, Qian Li, Zhi Mao, Yuan Long, Yongbin Hu, Chengping Hu
Acute respiratory distress syndrome(ARDS)is a severe clinical disorder characterized by its acute onset, diffuse alveolar damage, intractable hypoxemia, and non-cardiogenic pulmonary edema. Acute lung injury(ALI) can trigger persistent lung inflammation and fibrosis through activation of the NLRP3 inflammasome and subsequent secretion of mature IL-1β, suggesting that the NLRP3 inflammasome is a potential therapeutic target for ALI, for which new therapeutic approaches are needed. Our present study aims to assess whether pirfenidone,with anti-fibrotic and anti-inflammatory properties, can improve LPS-induced inflammation and fibrosis by inhibiting NLRP3 inflammasome activation...
May 18, 2018: Molecular Immunology
https://www.readbyqxmd.com/read/29783153/microwave-assisted-pyrolysis-of-textile-dyeing-sludge-and-migration-and-distribution-of-heavy-metals
#20
Hedong Zhang, Zuopeng Gao, Yang Liu, Chunmei Ran, Xiao Mao, Qinhao Kang, Wenya Ao, Jie Fu, Jing Li, Guangqing Liu, Jianjun Dai
This study investigated the pyrolysis characteristic of textile dyeing sludge (DS) using an auger pyrolyser under microwave irradiation at different pyrolysis temperature. The migration and distribution characteristic of heavy metals and their potential ecological risks were investigated using inductively coupled plasma mass spectrometry (ICP-MS) techniques. Temperature and additives (e.g. Ca-bentonite, kaolin and CaO) significantly affected product distribution and yields. Heavy metals showed different enrichment characteristics during pyrolysis and a great percentage of the heavy metals was retained in the sludge char (SC), depending on different temperatures and additives...
May 1, 2018: Journal of Hazardous Materials
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