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https://www.readbyqxmd.com/read/28622695/mir-23a-promotes-tgf-%C3%AE-1-induced-emt-and-tumor-metastasis-in-breast-cancer-cells-by-directly-targeting-cdh1-and-activating-wnt-%C3%AE-catenin-signaling
#1
Fei Ma, Wenjie Li, Chunxiao Liu, Wei Li, Haining Yu, Bo Lei, Yanlv Ren, Zhigao Li, Da Pang, Cheng Qian
TGF-β1-induced epithelial-mesenchymal transition (EMT) has been proved to be associated with metastasis of breast cancer cells. We attempted to detect a novel mechanism that microRNAs mediated the TGF-β1-induced EMT in the process of breast cancer metastasis. Here we reported that the expression of miR-23a was higher in breast cancer cells with high metastasis ability and patients with lymph node metastasis and the treatment of TGF-β1 significantly upregulated the expression of miR-23a in breast cancer cells...
June 9, 2017: Oncotarget
https://www.readbyqxmd.com/read/28585148/combined-use-of-single-balloon-enteroscope-and-colonoscope-for-self-expandable-metal-stent-placement-in-patients-with-malignant-small-intestinal-obstruction-a-single-center-comparative-clinical-observation
#2
Ya-Fei Zhang, Shou-Bin Ning, Bai-Rong Li, Jing Zhang, Jing Li, Jie Tang, Ming Zhu, Xiao-Wei Jin, Qiu Zhao, Gao-Ping Mao
Small intestinal obstruction is a common complication of primary gastrointestinal cancer or metastatic cancers. Patients with this condition are often poor candidates for surgical bypasses, and placement of self-expanding metal stent (SEMS) can be technically challenging. In this study, we examined the feasibility of combined application of single-balloon enteroscope (SBE) and colonoscope for SEMS placement in patients with malignant small intestinal obstruction. Thirty-four patients were enrolled in this study, among which 22 patients received SEMS placement by using SBE and colonoscope, while the other 12 patients received conservative medical treatment...
June 2017: Journal of Huazhong University of Science and Technology. Medical Sciences
https://www.readbyqxmd.com/read/28578566/enhanced-accessibility-of-pahs-and-heterocyclic-pahs-in-industrially-contaminated-soil-after-passive-dosing-of-a-competitive-sorbate
#3
Stefan Humel, Stine Nørgaard Schmidt, Marion Sumetzberger-Hasinger, Philipp Mayer, Andreas Paul Loibner
To assess the exposure to polycyclic aromatic hydrocarbons (PAHs), it is important to understand the binding mechanisms between specific soil constituents and the organic pollutant. In this study, sorptive bioaccessibility extraction (SBE) was applied to quantify the accessible PAH fraction in industrially contaminated soil with and without passive dosing of a competitive sorbate. SBE experiments revealed an accessible PAH fraction of 41±1% (∑16 US EPA PAHs + 5 further PAHs). The passive dosing of toluene below its saturation level revealed competitive binding and resulted in an average increase of the accessible fraction to 49±2%, whereby primarily the accessibility of higher molecular weight PAHs (log Kow >6) was affected...
June 5, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28574838/histone-modifications-affect-differential-regulation-of-tgf%C3%AE-induced-nadph-oxidase-4-nox4-by-wild-type-and-mutant-p53
#4
Howard E Boudreau, Wei Feng Ma, Agnieszka Korzeniowska, Jonathan J Park, Medha A Bhagwat, Thomas L Leto
Previously, we showed wild-type (WT) and mutant (mut) p53 differentially regulate reactive oxygen species (ROS) generation by NADPH oxidase-4 (NOX4): p53-WT suppresses TGFβ-induced NOX4, ROS and cell migration, whereas tumor-associated mut-p53 proteins enhance NOX4 expression and cell migration. Here, we extended our findings on the effects of p53 on NOX4 in several tumors and examined the basis of NOX4 transcriptional regulation by p53 and SMAD3. Statistical analysis of expression data from primary tumors available from The Cancer Genome Atlas (TCGA) detected correlations between mut-p53 and increased NOX4 expression...
May 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28561892/microneedle-assisted-dc-targeted-codelivery-of-ptrp-2-and-adjuvant-of-paclitaxel-for-transcutaneous-immunotherapy
#5
Jiaojiao Xu, Beihua Xu, Jin Tao, Yunxu Yang, Ying Hu, Yongzhuo Huang
This work aims at developing an immunotherapeutic strategy to deliver a cancer DNA vaccine targeting dendritic cells (DCs), to trigger their maturation and antitumor function, and reduce immune escape using a polymeric nanocomplex of paclitaxel (PTX)-encapsulated sulfobutylether-β-cyclodextrin (SBE)/mannosylated N,N,N-trimethylchitosan (mTMC)/DNA. To enhance DC-targeting and revoke immunosuppression is the major challenge for eliciting effective antitumor immunity. This codelivery system is characterized by using low-dose PTX as an adjuvant that is included inside SBE, and the PTX/SBE further serves as an anionic crosslinker to self-assemble with the cationic mTMC/DNA polyplexes...
May 31, 2017: Small
https://www.readbyqxmd.com/read/28560528/success-of-percutaneous-endoscopic-gastrostomy-by-single-balloon-enteroscopy-in-patients-who-have-undergone-roux-en-y-gastric-bypass
#6
Eric Sellers, Andrew S Brock
Data is limited regarding the success and safety of percutaneous endoscopic gastrostomy (PEG) placements by single balloon enteroscopy (SBE) in patients with Roux-en-Y gastric bypass (RNY-GB) anatomy. We report on 23 cases of PEG placements by SBE with overall technical success of reaching the excluded stomach 70% and with PEG placement success rate of 69%. No intra-procedural adverse events occurred. This technique seems safe when feasible for PEG placement in patients with RNY-GB anatomy.
May 30, 2017: Obesity Surgery
https://www.readbyqxmd.com/read/28546841/the-effect-of-cyclodextrin-complexation-on-the-solubility-and-photostability-of-nerolidol-as-pure-compound-and-as-main-constituent-of-cabreuva-essential-oil
#7
Joyce Azzi, Pierre-Edouard Danjou, David Landy, Steven Ruellan, Lizette Auezova, Hélène Greige-Gerges, Sophie Fourmentin
Nerolidol (Ner), a major component of many plant essential oils, is known for its various biological properties. However, the low solubility of Ner in water and its susceptibility to degradation limit its application. The aim of our study was to improve the solubility and photostability of Ner through its encapsulation in different cyclodextrins (CDs). The formation constants of cis-, trans-Ner and their commercial mixture with various CDs (α-CD, β-CD, γ-CD, HP-β-CD, RAMEB, CRYSMEB and SBE-β-CD) were determined by phase solubility studies and confirmed by the spectral displacement UV-visible method...
2017: Beilstein Journal of Organic Chemistry
https://www.readbyqxmd.com/read/28545442/anti-cancer-effect-of-scutellaria-baicalensis-in-combination-with-cisplatin-in-human-ovarian-cancer-cell
#8
Bo Yoon Choi, Jong Cheon Joo, Yeon Kyu Lee, Ik-Soon Jang, Soo Jung Park, Yoon Jung Park
BACKGROUND: Ovarian cancer is one of the major causes of death among females in worldwide. Cisplatin is a primary anti-cancer drug against ovarian cancer, but the recurrent tumors after treatment frequently show acquired chemoresistance. Extract of Scutellaria baicalensis (SbE) has been reported to have functional compounds including baicalin, which has anti-cancer effects. However, the anti-cancer effects of SbE in ovarian cancer and its underlying mechanisms are elusive. METHODS: We investigated that the effects of SbE and/or cisplatin on cell death in the cisplatin sensitive ovarian cancer cell line A2780 (CSC) and the counterpart cell line that has cisplatin resistance (CRC)...
May 25, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28542293/identification-and-expression-analysis-of-starch-branching-enzymes-involved-in-starch-synthesis-during-the-development-of-chestnut-castanea-mollissima-blume-cotyledons
#9
Liangke Chen, Dan Lu, Teng Wang, Zhi Li, Yanyan Zhao, Yichen Jiang, Qing Zhang, Qingqin Cao, Kefeng Fang, Yu Xing, Ling Qin
Chinese chestnut (Castanea mollissima Blume) is native to China and distributes widely in arid and semi-arid mountain area with barren soil. As a perennial crop, chestnut is an alternative food source and acts as an important commercial nut tree in China. Starch is the major metabolite in nuts, accounting for 46 ~ 64% of the chestnut dry weight. The accumulation of total starch and amylopectin showed a similar increasing trend during the development of nut. Amylopectin contributed up to 76% of the total starch content at 80 days after pollination (DAP)...
2017: PloS One
https://www.readbyqxmd.com/read/28533545/treatment-effects-of-the-traditional-chinese-medicine-shenks-in-bleomycin-induced-lung-fibrosis-through-regulation-of-tgf-beta-smad3-signaling-and-oxidative-stress
#10
Haiyan Chu, Ying Shi, Shuai Jiang, Qicheng Zhong, Yongqiang Zhao, Qingmei Liu, Yanyun Ma, Xiangguang Shi, Weifeng Ding, Xiaodong Zhou, Jimin Cui, Li Jin, Gang Guo, Jiucun Wang
Pulmonary fibrosis is a kind of devastating interstitial lung disease due to the limited therapeutic strategies. Traditional Chinese medicine (TCM) practices have put forth Shenks as a promising treatment approach. Here, we performed in vivo study and in vitro study to delineate the anti-fibrotic mechanisms behind Shenks treatment for pulmonary fibrosis. We found that regardless of the prophylactic or therapeutic treatment, Shenks was able to attenuate BLM-induced-fibrosis in mice, down regulate extracellular matrix genes expression, and reduce collagen production...
May 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28529602/super-aqueous-solubility-of-albendazole-in-%C3%AE-cyclodextrin-for-parenteral-application-in-cancer-therapy
#11
Krishna Pillai, Javed Akhter, David Lawson Morris
Poor aqueous solubility of anticancer drug, albendazole (ABZ), prevents parenteral application. Here, we demonstrate how to increase the aqueous solubility of ABZ to 6- 8 mg/ml using sulfobutylether - β-cyclodextrin (SBE-β-CD) or Hydroxypropyl- β-cyclodextrin (HP- β-CD) by manipulation of complexation parameters such as the physical state of ABZ (ionized in acetic acid), the concentration of ionised ABZ, agitation time and temperature. Solubility was first examined with suspension of excess ABZ powder in cyclodextrin (CD) solutions at pH (2...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28523436/hrm-and-snapshot-as-alternative-forensic-snp-genotyping-methods
#12
Bhavik Mehta, Runa Daniel, Dennis McNevin
Single nucleotide polymorphisms (SNPs) have been widely used in forensics for prediction of identity, biogeographical ancestry (BGA) and externally visible characteristics (EVCs). Single base extension (SBE) assays, most notably SNaPshot® (Thermo Fisher Scientific), are commonly used for forensic SNP genotyping as they can be employed on standard instrumentation in forensic laboratories (e.g. capillary electrophoresis). High resolution melt (HRM) analysis is an alternative method and is a simple, fast, single tube assay for low throughput SNP typing...
May 18, 2017: Forensic Science, Medicine, and Pathology
https://www.readbyqxmd.com/read/28515655/effect-of-calcium-lactate-on-physico-chemical-characteristics-of-shank-bone-extract
#13
Jung-Seok Choi, Sang-Keun Jin, Yeong-Seok Choi, Jin-Kyu Lee, Ji-Taek Jung, Yang-Il Choi, Hyun-Joo Lee, Jae-Joon Lee
This study was conducted to develop calcium-fortified shank bone extract (SBE) and to determine the effect of adding calcium lactate on physico-chemical characteristics of SBE during cold storage. The following five experiment groups were used: Control (0%, no addition), T1 (0.05% calcium lactate), T2 (0.1% calcium lactate), T3 (0.5% calcium lactate), and T4 (1% calcium lactate). When the concentration of calcium lactate added to the SBE was increased, the pH, redness, and yellowness values were significantly reduced, whereas the salinity, sugar content, and turbidity of SBE were significantly increased...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28511730/simulation-in-canadian-postgraduate-emergency-medicine-training-a-national-survey
#14
Evan Russell, Andrew Koch Hall, Carly Hagel, Andrew Petrosoniak, Jeffrey Damon Dagnone, Daniel Howes
OBJECTIVES: Simulation-based education (SBE) is an important training strategy in emergency medicine (EM) postgraduate programs. This study sought to characterize the use of simulation in FRCPC-EM residency programs across Canada. METHODS: A national survey was administered to residents and knowledgeable program representatives (PRs) at all Canadian FRCPC-EM programs. Survey question themes included simulation program characteristics, the frequency of resident participation, the location and administration of SBE, institutional barriers, interprofessional involvement, content, assessment strategies, and attitudes about SBE...
May 17, 2017: CJEM
https://www.readbyqxmd.com/read/28507311/disruption-of-shh-signaling-cascade-by-sbe-attenuates-lung-cancer-progression-and-sensitizes-ddp-treatment
#15
Jing Du, Weiwei Chen, Lijuan Yang, Juanjuan Dai, Jiwei Guo, Yan Wu, Kaikai Gong, Jian Zhang, Ning Yu, Zhen Xie, Sichuan Xi
Deregulated Sonic Hedgehog (SHH) pathway facilitates the initiation, progression, and metastasis of Non-small cell lung cancer (NSCLC), confers drug resistance and renders a therapeutic interference option to lung cancer patients with poor prognosis. In this study, we screened and evaluated the specificity of a Chinese herb Scutellariabarbata D. Don extraction (SBE) in repressing SHH signaling pathway to block NSCLC progression. Our study confirmed that aberrant activation of the SHH signal pathway conferred more proliferative and invasive phenotypes to human lung cancer cells...
May 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28486184/bioaccessibility-of-polycyclic-aromatic-hydrocarbons-in-activated-carbon-or-biochar-amended-vegetated-salix-viminalis-soil
#16
Patryk Oleszczuk, Paulina Godlewska, Danny D Reible, Piotr Kraska
The aim of the present study was to determine the effect of activated carbon (AC) or biochars on the bioaccessibility (Cbioacc) of polycyclic aromatic hydrocarbons (PAHs) in soils vegetated with willow (Salix viminalis). The study determined the effect of willow on the Cbioacc PAHs and the effect of the investigated amendments on changes in dissolved organic carbon (DOC), crop yield and the content of PAHs in plants. PAH-contaminated soil was amended with 2.5 wt% AC or biochar. Samples from individual plots with and without plants were collected at the beginning of the experiment and after 3, 6, 12 and 18 months...
August 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28453964/degradation-of-sulfadimethoxine-catalyzed-by-laccase-with-soybean-meal-extract-as-natural-mediator-mechanism-and-reaction-pathway
#17
Shangtao Liang, Qi Luo, Qingguo Huang
Natural laccase-mediator systems have been well recognized as an eco-friendly and energy-saving approach in environmental remediation, whose further application is however limited by the high cost of natural mediators and relatively long treatment time span. This study evaluated the water extract of soybean meal, a low-cost compound system, in mediating the laccase catalyzed degradation of a model contaminant of emerging concern, sulfadimethoxine (SDM), and demonstrated it as a promising alternative mediator for soil and water remediation...
April 23, 2017: Chemosphere
https://www.readbyqxmd.com/read/28432793/single-and-dual-cyclodextrins-systems-for-the-enantiomeric-and-diastereoisomeric-separations-of-structurally-related-dihydropyridone-analogues
#18
Thibaut Delplanques, Rajaa Boulahjar, Julie Charton, Corentin Houze, Michaël Howsam, Anne-Catherine Servais, Marianne Fillet, Emmanuelle Lipka
Cyclodextrin capillary electrophoresis methods (CD-CZE) were developed for complete enantiomeric and diastereoisomeric separations of a series of ten dihydropyridone analogues, of which eight were neutral, one was anionic and one was cationic. Ten different systems comprising one or two cyclodextrins were found to successfully separate the isomers thanks to a screening approach. Among the tested cyclodextrins, HS-γ-CD, either in a single or in a dual system, in a phosphate buffer using capillaries dynamically coated with polyethylene oxide (PEO), and SBE-β-CD, either in a single or in a dual system, in a borate buffer using uncoated capillaries, were the most selective selectors...
April 22, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28432685/chiral-analysis-of-%C3%AE-diimine-ru-ii-and-fe-ii-complexes-by-capillary-electrophoresis-using-sulfated-cyclodextrins-as-stereoselectors
#19
Petra Sázelová, Dušan Koval, Lukáš Severa, Filip Teplý, Václav Kašička
CE using randomly highly sulfated α-, β-, and γ-CDs (S-α-CD, S-β-CD, S-γ-CD), sulfobutylether-β-CD (SBE-β-CD), single isomer (6-O-sulfo) α-, β-, and γ-CDs, and their derivatives as stereoselectors was applied to chiral analysis of polypyridyl complexes of [Ru(bpy)3 ](2+) , [Ru(phen)3 ](2+) , and [Fe(phen)3 ](2+) (bpy = 2,2'-bipyridine; phen = 1,10 phenanthroline). The best separations of Δ- and Λ-enantiomers of the these complexes with high resolution (up to R1,2  = 7.0) and short analysis times (10-20 min) were achieved in the BGE composed of 22 mM NaOH/35 mM H3 PO4 , pH 2...
April 22, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28432283/efficacy-and-safety-of-single-balloon-versus-double-balloon-enteroscopy-a-single-center-retrospective-analysis
#20
Zhanjun Lu, Yu Qi, Jianjun Weng, Lei Ma, Xinjian Wan, Rong Wan, Lungen Lu, Hang Zhao
BACKGROUND Single-balloon endoscopy (SBE) has been introduced as a simplified endoscopy technique after the promotion of double-balloon endoscopy (DBE). The difference in clinical performance between DBE and SBE is still not very clear. In this study, we aimed to compare the efficacy and safety between these 2 endoscopic procedures. MATERIAL AND METHODS A total of 173 patients with suspected small bowel disease were enrolled into this study from January 2007 to December 2011. All cases were divided into DBE or SBE groups according to the endoscopic procedures they underwent...
April 22, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
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