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https://www.readbyqxmd.com/read/28821031/surface-deacetylated-chitin-nanofibers-reinforced-with-a-sulfobutyl-ether-%C3%AE-cyclodextrin-gel-loaded-with-prednisolone-as-potential-therapy-for-inflammatory-bowel-disease
#1
Ryo Tabuchi, Makoto Anraku, Daisuke Iohara, Takako Ishiguro, Shinsuke Ifuku, Tomone Nagae, Kaneto Uekama, Shoko Okazaki, Keizo Takeshita, Masaki Otagiri, Fumitoshi Hirayama
Surface-deacetylated chitin nanofibers (SDACNFs) reinforced with a sulfobutyl ether β-cyclodextrin (SBE-β-CD) (NFs-CDs) gel were developed to obtain a controlled release carrier of prednisolone (PD) for the treatment of colitis. PD was released slowly from the gel at both pH 1.2 and 6.8. The in vitro slow release of PD from the NFs-CDs gel was reflected in the in vivo absorption of the drug after oral administration to rats. These results suggest that a simple gel composed of a mixture of SDACNFs and SBE-β-CD has the potential for use in the controlled release of PD...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28807746/20-hete-regulated-psmb5-expression-via-tgf-%C3%AE-smad-signaling-pathway
#2
Guangrui Lai, Ru Sun, Jingjing Wu, Bijun Zhang, Yanyan Zhao
We previously found that 20-hydroxyeicosatetraeonic acid (20-HETE) showed an effect on proteasome activity in cytochrome P450 F2 (CYP4F2) transgenic mice. Proteasome subunit β5 (PSMB5) is a primary subunit of the proteasome. In the current study, we examine whether 20-HETE has any affect on PSMB5. We found that PSMB5 was upregulated in the liver, but downregulated in the kidney of transgenic mice, when compared with wild-type mice. Luciferase reporter gene experiments and electrophoretic mobility shift assays (EMSA) suggested that Smad3 directly associated with the putative Smad binding element (SBE) of the Psmb5 promoter...
August 11, 2017: Prostaglandins & Other Lipid Mediators
https://www.readbyqxmd.com/read/28800209/using-local-clinical-educators-and-shared-resources-to-deliver-simulation-training-activities-across-rural-and-remote-south-australia-and-south-west-victoria-a-distributed-collaborative-model
#3
Stacey C Masters, Sandi Elliott, Sarah Boyd, James A Dunbar
PROBLEM: There is a lack of access to simulation-based education (SBE) for professional entry students (PES) and health professionals at rural and remote locations. DESIGN: A descriptive study. SETTING: Health and education facilities in regional South Australia and south-west Victoria. KEY MEASURES FOR IMPROVEMENT: Number of training recipients who participated in SBE; geographical distribution and locations where SBE was delivered; number of rural clinical educators providing SBE...
August 11, 2017: Australian Journal of Rural Health
https://www.readbyqxmd.com/read/28780752/regulation-of-smad-mediated-microrna-transcriptional-response-in-ground-squirrels-during-hibernation
#4
Cheng-Wei Wu, Kenneth B Storey
Mammalian hibernation is a state of dormancy that is used by some animals to survive through the unfavorable conditions of winter, and is characterized by coordinated suppression of basal metabolism that is supported by global inhibition of energy/ATP-consuming processes. In this study, we examine the regulation of the anti-proliferatory TGF-β/Smad transcription factor signaling pathway in the liver tissue of the hibernating 13-lined ground squirrel Ictidomys tridecemlineatus. The TGF-β/Smad signaling pathway is known to mediate cell cycle arrest through induction of cell cycle dependent kinase inhibitors, and more recently, has been shown to regulate a wide range of cellular processes via its control of microRNA biosynthesis...
August 5, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28766876/simulation-based-education-leads-to-decreased-use-of-fluoroscopy-in-diagnostic-coronary-angiography
#5
Stuart B Prenner, Diane B Wayne, Ranya N Sweis, Elaine R Cohen, Joe M Feinglass, Daniel R Schimmel
OBJECTIVES: The aim of this study is to determine whether simulation-based education (SBE) translates into reduced procedure time, radiation, and contrast use in actual clinical care. BACKGROUND: As a high volume procedure often performed by novice cardiology fellows, diagnostic coronary angiography represents an excellent target for SBE. Reports of SBE in interventional cardiology are limited and there is little understanding of the potential downstream clinical impact of these interventions...
August 2, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28757093/biochemical-characterization-of-arabidopsis-thaliana-starch-branching-enzyme-2-2-reveals-an-enzymatic-positive-cooperativity
#6
A Wychowski, C Bompard, F Grimaud, G Potocki-Véronèse, C D'Hulst, F Wattebled, X Roussel
Starch Branching Enzymes (SBE) catalyze the formation of α(1 → 6) branching points on starch polymers: amylopectin and amylose. SBEs are classified in two groups named type 1 and 2. Both types are present in the entire plant kingdom except in some species such as Arabidopsis thaliana that expresses two type 2 SBEs: BE2.1 and BE2.2. The present work describes in vitro enzymatic characterization of the recombinant BE2.2. The function of recombinant BE2.2 was characterized in vitro using spectrophotometry assay, native PAGE and HPAEC-PAD analysis...
September 2017: Biochimie
https://www.readbyqxmd.com/read/28756943/evaluation-of-stress-response-using-psychological-biological-and-electrophysiological-markers-during-immersive-simulation-of-life-threatening-events-in-multidisciplinary-teams
#7
D A Ghazali, I Darmian-Rafei, J Nadolny, P Sosner, S Ragot, D Oriot
Stress might impair clinical performance in real life and in simulation-based education (SBE). Subjective or objective measures can be used to assess stress during SBE. This monocentric study aimed to evaluate the effects of simulation of life-threatening events on measurements of various stress parameters (psychological, biological, and electrophysiological parameters) in multidisciplinary teams (MDTs) during SBE. The effect of gender and status of participants on stress response was also investigated. Twelve emergency MDTs of 4 individuals were recruited for an immersive simulation session...
July 27, 2017: Australian Critical Care: Official Journal of the Confederation of Australian Critical Care Nurses
https://www.readbyqxmd.com/read/28733743/therapeutic-peroral-direct-cholangioscopy-using-a-single-balloon-enteroscope-in-patients-with-roux-en-y-anastomosis-with-videos
#8
Hiroshi Yamauchi, Mitsuhiro Kida, Kosuke Okuwaki, Shiro Miyazawa, Takaaki Matsumoto, Kazuho Uehara, Eiji Miyata, Rikiya Hasegawa, Toru Kaneko, Issaree Laopeamthong, Yang Lei, Tomohisa Iwai, Hiroshi Imaizumi, Wasaburo Koizumi
BACKGROUND: Peroral cholangioscopic lithotripsy is a useful procedure in patients with a normal gastrointestinal anatomy who have difficult-to-treat stones. We evaluated the usefulness of peroral direct cholangioscopy (PDCS) using single-balloon enteroscope (SBE) in patients with difficult-to-treat stones who had undergone Roux-en-Y reconstruction. METHODS: Among 118 patients (169 sessions) who underwent SBE-assisted endoscopic retrograde cholangiopancreatography to treat biliary stones after Roux-en-Y reconstruction, patients in whom it was difficult to remove biliary stones via a transpapillary or transanastomotic approach and difficult to switch to ultra-slim endoscope, were retrospectively enrolled...
July 21, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28729759/transcriptome-wide-identification-and-characterization-of-starch-branching-enzyme-in-finger-millet
#9
Rajhans Tyagi, Apoorv Tiwari, Vijay Kumar Garg, Sanjay Gupta
Starch-branching enzymes (SBEs) are one of the four major enzyme classes involved in starch biosynthesis in plants and play an important role in determining the structure and physical properties of starch granules. Multiple SBEs are involved in starch biosynthesis in plants. Finger millet is calcium rich important serial crop belongs to grass family and the transcriptome data of developing spikes is available on NCBI. In this study it was try to find out the gene sequence of starch branching enzyme and annotate the sequence and submit the sequence for further use...
2017: Bioinformation
https://www.readbyqxmd.com/read/28724303/direct-percutaneous-endoscopic-jejunostomy-using-single-balloon-enteroscopy-without-fluoroscopy-a-case-series
#10
Carlos Bernardes, Rolando Pinho, Adélia Rodrigues, Luísa Proença, João Carvalho
BACKGROUND: Direct percutaneous endoscopic jejunostomy (DPEJ) is a useful method to provide enteral nutrition to individuals when gastric feeding is not possible or contraindicated. The aim of this study was to analyze the efficacy and safety of DPEJ tube placement with the Gauderer-Ponsky technique by the pull method, using single-balloon enteroscopy (SBE) without fluoroscopy. METHODS: This is a retrospective analysis of patients undergoing SBE for DPEJ placement in a referral hospital between January 2010 and March 2016...
July 14, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28717699/opportunistic-breast-cancer-education-and-screening-in-rural-honduras
#11
Linda S Kennedy, Suyapa A Bejarano, Tracy L Onega, Derek S Stenquist, Mary D Chamberlin
PURPOSE: In Honduras, the breast cancer burden is high, and access to women's health services is low. This project tested the connection of community-based breast cancer detection with clinical diagnosis and treatment in a tightly linked and quickly facilitated format. METHODS: The Norris Cotton Cancer Center at Dartmouth College partnered with the Honduran cancer hospital La Liga Contra el Cancer to expand a cervical cancer screening program, which included self-breast exam (SBE) education and clinical breast exams (CBEs), to assess patient attitudes about and uptake of breast cancer education and screening services...
August 2016: Journal of Global Oncology
https://www.readbyqxmd.com/read/28715365/analysis-of-the-c-kit-ligand-promoter-using-chromatin-immunoprecipitation
#12
Pingyu Zhang, Andres Rojas, Boris Blechacz
Multiple cellular processes, including DNA replication and repair, DNA recombination, and gene expression, require interactions between proteins and DNA. Therefore, DNA-protein interactions regulate multiple physiological, pathophysiological, and biological functions, such as cell differentiation, cell proliferation, cell cycle control, chromosome stability, epigenetic gene regulation, and cell transformation. In eukaryotic cells, the DNA interacts with histone and nonhistone proteins and is condensed into chromatin...
June 27, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28710720/starch-accumulation-in-hulless-barley-during-grain-filling
#13
Xu-Guang Zheng, Jun-Cang Qi, Hong-Shan Hui, Li-Hao Lin, Feng Wang
BACKGROUND: Starch consists of two types of molecules: amylose and amylopectin. The objective of this study was increase understanding about mechanisms related to starch accumulation in hulless barley (Hordeum vulgare L.) grain by measuring temporal changes in (i) grain amylose and amylopectin content, (ii) starch synthase activity, and (iii) the relative expressions of key starch-related genes. RESULTS: The amylopectin/amylose ratio gradually declined in both Beiqing 6 and Kunlun 12...
December 2017: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28689966/comparative-in-vitro-and-in-vivo-taste-assessment-of-liquid-praziquantel-formulations
#14
Magdalena Münster, Abeer H A Mohamed-Ahmed, Laura I Immohr, Corinna Schoch, Carsten Schmidt, Catherine Tuleu, Jörg Breitkreutz
The taste of pharmaceuticals strongly affects the compliance of patients. This study investigated the applicability of the electronic tongue and rodent brief-access taste aversion (BATA) model for the bitter compound praziquantel (PZQ) and taste masked liquid formulations for PZQ. In a comparative study maltodextrin (MD) Kleptose(®) linecaps 17 was selected as an alternative taste masking agent to two cyclodextrins; hydroxypropyl-beta-cyclodextrin (HP-β-CD) and sulfobutyl ether-beta-cyclodextrin (SBE-β-CD)...
July 8, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/28675505/supramolecular-interactions-between-%C3%AE-lapachone-with-cyclodextrins-studied-using-isothermal-titration-calorimetry-and-molecular-modeling
#15
Francisco H Xavier-Junior, Marcelo M Rabello, Marcelo Z Hernandes, Marília E S Dias, Otoni H M S Andrada, Beatriz P Bezerra, Alejandro P Ayala, Nereide S Santos-Magalhães
Supramolecular interactions between β-lapachone (β-lap) and cyclodextrins (CDs) were investigated by isothermal titration calorimetry. The most favorable host: guest interaction was characterized using X-ray powder diffraction (XRD), differential scanning calorimetry and thermogravimetry (DSC/TG), spectroscopy (FT-IR), spectroscopy (2D ROESY) nuclear magnetic resonance (NMR), and molecular modeling. Phase solubility diagrams showed β-, HP-β-, SBE-β-, γ-, and HP-γ-CDs at 1.5% (w/w) allowed an increase in apparent solubility of β-lap with enhancement factors of 12...
July 4, 2017: Journal of Molecular Recognition: JMR
https://www.readbyqxmd.com/read/28666165/a-novel-enantioseparation-approach-based-on-liposome-electrokinetic-capillary-chromatography
#16
Xiaoqi Li, Yingxiang Du, Zijie Feng, Xiaodong Sun, Zhifeng Huang
As a novel separation mode of capillary electrophoresis (CE), liposome electrokinetic capillary chromatography (LEKC) has aroused considerable attention in recent years; however, the enantioseparation based on this new system has not been previously investigated. In this study, we proposed a brand-new LEKC chiral separation approach using liposomes comprised of phosphatidylcholine (PC) and cholesterol as pseudo-stationary phase and sulfobutyl ether-β-cyclodextrin (SBE-β-CD) as chiral selector. Compared with the single CD system and CD-SDS-MEKC system, this LEKC method presented an obviously preferable enantioseparation of four model drugs (naproxen, warfarin, ketoprofen and amlodipine)...
June 6, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28659340/the-long-non-coding-rna-gas5-regulates-tgf-%C3%AE-induced-smooth-muscle-cell-differentiation-via-rna-smad-binding-element
#17
Rui Tang, Gui Zhang, Yung-Chun Wang, Xiaohan Mei, Shi-You Chen
Smooth muscle cell (SMC) differentiation is essential for vascular development, and TGF-β signaling plays a critical role in this process. Although long non-coding RNAs (lncRNAs) regulate various cellular events, their functions in SMC differentiation remain largely unknown. Here, we demonstrate that the lncRNA growth arrest specific 5 (GAS5) suppresses TGF-β/Smad3 signaling in smooth muscle cell differentiation of mesenchymal progenitor cells. We found that forced expression of GAS5 blocked, while knockdown of GAS5 increased, the expression of SMC contractile proteins...
June 28, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28652706/experimental-molecular-docking-investigations-and-bioavailability-study-on-the-inclusion-complexes-of-finasteride-and-cyclodextrins
#18
Fatma M Mady, Usama Farghaly Aly
Finasteride (FIN) is a Class II candidate of the Biopharmaceutics Classification System (BCS). The lipophilic cavity of cyclodextrins (CyDs) enables it to construct a non-covalent inclusion complex with different insoluble drugs. Only β-cyclodextrin (β-CyD) and hydroxypropyl-β-CyD (HP-β-CyD) have been previously examined with FIN. This study aimed to investigate the consistence of FIN with different kinds of β-CyDs, including dimethyl-β-cyclodextrin (DM-β-CyD), carboxymethyl-β-cyclodextrin (CM-β-CyD), HP-β-CyD, sulfobutyl ether-β-cyclodextrin (SBE-β-CyD), and β-CyD, by the coprecipitation method...
2017: Drug Design, Development and Therapy
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
#19
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
#20
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
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