keyword
MENU ▼
Read by QxMD icon Read
search

GCP

keyword
https://www.readbyqxmd.com/read/28914486/a-systematic-structure-activity-study-of-a-new-type-of-small-peptidic-transfection-vectors-reveals-the-importance-of-a-special-oxo-anion-binding-motif-for-gene-delivery
#1
Carsten Schmuck, Sandra Junghänel, Sarah Karczewski, Sandra Bäcker, Shirley Knauer
We discovered a new class of artificial peptidic transfection vectors based on an artificial anion binding motif, the guanidiniocarbonylpyrrole cation (abbreviated as GCP). This new type of vector is surprisingly small compared to traditional systems and our previous work suggested that the GCP group is important for promoting the critical endosomal escape. We now present here a systematic comparison of similar DNA-ligands featuring our GCP oxo-anion binding motif with DNA-ligands only consisting of natural occurring amino acids...
September 15, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28893317/perceived-barriers-and-facilitators-to-risk-based-monitoring-in-academic-led-clinical-trials-a-mixed-methods-study
#2
Caroline Hurley, Carol Sinnott, Mike Clarke, Patricia Kearney, Emmy Racine, Joseph Eustace, Frances Shiely
BACKGROUND: In November 2016, the ICH published a requirement for sponsors to develop a systematic, prioritised, risk-based approach to monitoring clinical trials. This approach is more commonly known as risk-based monitoring (RBM). However, recent evidence suggests that a 'gold standard', validated approach to RBM does not exist and it is unclear how sponsors will introduce RBM into their organisations. A first step needed to inform the implementation of RBM is to explore academic trialists' readiness and ability to perform RBM...
September 11, 2017: Trials
https://www.readbyqxmd.com/read/28870379/esource-for-clinical-trials-implementation-and-evaluation-of-a-standards-based-approach-in-a-real-world-trial
#3
Jean-Francois Ethier, Vasa Curcin, Mark M McGilchrist, Sarah N Lim Choi Keung, Lei Zhao, Anna Andreasson, Piotr Bródka, Radoslaw Michalski, Theodoros N Arvanitis, Nikolaos Mastellos, Anita Burgun, Brendan C Delaney
OBJECTIVE: The Learning Health System (LHS) requires integration of research into routine practice. 'eSource' or embedding clinical trial functionalities into routine electronic health record (EHR) systems has long been put forward as a solution to the rising costs of research. We aimed to create and validate an eSource solution that would be readily extensible as part of a LHS. MATERIALS AND METHODS: The EU FP7 TRANSFoRm project's approach is based on dual modelling, using the Clinical Research Information Model (CRIM) and the Clinical Data Integration Model of meaning (CDIM) to bridge the gap between clinical and research data structures, using the CDISC Operational Data Model (ODM) standard...
October 2017: International Journal of Medical Informatics
https://www.readbyqxmd.com/read/28829191/the-cd14-rs2569190-tt-genotype-is-associated-with-chronic-periodontitis
#4
Dilshi Ishaan, Harinath Parthasarathy, Deepa Ponnaiyan, Anupama Tadepalli
AIM: The genetic variation in the CD14 rs2569190 promoter region contributes to the susceptibility of developing periodontitis. Since, CD14 gene polymorphism studies among various ethnic populations have produced conflicting results, the present study was designed to unearth the association between the CD14 rs2569190 gene polymorphism and generalized chronic periodontitis (GCP) in a South Indian population of Tamil ethnicity. METHODS: Polymorphisms in the CD14 rs2569190 promoter region were analyzed in 96 subjects who were periodontally healthy and 96 patients with GCP...
September 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28828310/role-of-accreditation-in-quality-improvement-of-institutional-review-board
#5
Abhidnya Vasant Desai, Rohini W Hawaldar, Jigeeshu V Divatia
AIM: The aim of this study was to evaluate the process of accreditation resulting in improvement of the Institutional Review Board (IRB) functioning. METHODOLOGY: Randomly selected projects from years 2007 (before accreditation), 2010 (after accreditation), and 2013 (after reaccreditation) were evaluated to assess parameters, namely, submission of good clinical practices (GCPs), completeness of IRB submission form, fulfillment of quorum, documentation of the declaration of conflict of interests, and submission of the status reports...
July 2017: Perspectives in Clinical Research
https://www.readbyqxmd.com/read/28739539/medication-reviews-bridging-healthcare-medbridge-study-protocol-for-a-pragmatic-cluster-randomised-crossover-trial
#6
Thomas G H Kempen, Maria Bertilsson, Karl-Johan Lindner, Johanna Sulku, Elisabet I Nielsen, Angelica Högberg, Tomas Vikerfors, Håkan Melhus, Ulrika Gillespie
BACKGROUND: Mismanaged prescribing and use of medication among elderly puts major pressure on current healthcare systems. Performing a medication review, a structured critical examination of a patient's medications, during hospital stay with active follow-up into primary care could optimise treatment benefit and minimise harm. However, a lack of high quality evidence inhibits widespread implementation. This manuscript describes the rationale and design of a pragmatic cluster-randomised, crossover trial to fulfil this need for evidence...
July 21, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/28736344/tfos-dews-ii-clinical-trial-design-report
#7
REVIEW
Gary D Novack, Penny Asbell, Stefano Barabino, Michael V W Bergamini, Joseph B Ciolino, Gary N Foulks, Michael Goldstein, Michael A Lemp, Stefan Schrader, Craig Woods, Fiona Stapleton
The development of novel therapies for Dry Eye Disease (DED) is formidable, and relatively few treatments evaluated have been approved for marketing. In this report, the Subcommittee reviewed challenges in designing and conducting quality trials, with special reference to issues in trials in patients with DED and present the regulatory perspective on DED therapies. The Subcommittee reviewed the literature and while there are some observations about the possible reasons why so many trials have failed, there is no obvious single reason other than the lack of correlation between signs and symptoms in DED...
July 2017: Ocular Surface
https://www.readbyqxmd.com/read/28733068/effects-of-eu-harmonization-policies-on-national-public-supervision-of-clinical-trials-a-dynamic-cycle-of-institutional-change-and-institutional-work
#8
Jacqueline C F van Oijen, Kor J Grit, Hester M van de Bovenkamp, Roland A Bal
BACKGROUND: The EU Clinical Trials Directive (EUCTD) and the EU Clinical Trials Regulation aim to harmonize good clinical practice (GCP) of clinical trials across Member States. Using the Netherlands as a case study, this paper analyzes how endeavours to implement the EUCTD set in motion a dynamic process of institutional change and institutional work. This process lead to substantial differences between policy and actual practice; therefore, it is important to learn more about the implementation of harmonization policies...
September 2017: Health Policy
https://www.readbyqxmd.com/read/28730200/how-side-chains-affect-conformation-and-electrical-properties-of-poly-acrylic-acid-in-solution
#9
Xinlu Zhou, Kongshuang Zhao
To better understand the effect of side chains on the chain conformation and electrical properties of polyelectrolytes, dielectric measurements were carried out on solutions of poly(acrylic acid) (PAA), poly(acrylic acid)-graft-dodecyl (PAA-g-dodecyl), and poly(acrylic acid)-graft-poly(ethylene oxide) (PAA-g-PEO) over a wide concentration range. Double dielectric relaxations with counterion distribution were observed for these polymers and a refined double-layer polarization model was proposed to analyze these, by which valuable information about conformations and interfacial electrokinetic properties was obtained...
August 9, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28727270/efficacy-and-safety-of-pregabalin-for-painful-diabetic-peripheral-neuropathy-in-a-population-of-chinese-patients-a-randomized-placebo-controlled-trial
#10
Yiming Mu, Xiaomin Liu, Quanmin Li, Kangning Chen, Yu Liu, Xiaofeng Lv, Xiangjin Xu, Dongsheng Fan, Ningxiu Shang, Ruoyong Yang, Lynne Pauer, Changyu Pan
BACKGROUND: Limited information exists on the efficacy of pregabalin in Chinese patients with diabetic peripheral neuropathy (pDPN). METHODS: An 11-week, double-blind, placebo-controlled trial in Chinese pDPN patients randomized (1:1) to pregabalin 300 mg/day or placebo. Primary efficacy endpoint was change from baseline in mean daily pain score (0 = no pain;10 = worst possible pain). Secondary efficacy endpoints included overall weekly mean pain score, responder status, impression of change, pain intensity, and sleep...
July 20, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/28717168/dynamics-and-function-of-cxcr4-in-formation-of-the-granule-cell-layer-during-hippocampal-development
#11
Yuka Mimura-Yamamoto, Hiroshi Shinohara, Taichi Kashiwagi, Toru Sato, Seiji Shioda, Tatsunori Seki
In the developing hippocampus, granule cell progenitors (GCPs) arising in the ventricular zone (VZ) migrate to the subpial region, and form the granule cell layer (GCL) of the dentate gyrus (DG). To understand the mechanism of GCL formation, we investigated the dynamics and function of CXCR4 which is expressed by the GCPs and is a receptor of the CXCL12 chemokine secreted by cells surrounding the DG. In the VZ, CXCR4 was expressed on the plasma membrane of the GCPs. During their migration and in the DG, CXCR4 was internalized and accumulated as puncta close to the centrosomes, Golgi apparatus, and lysosomes...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28710219/comparison-of-propofol-and-dexmedetomidine-infused-overnight-to-treat-hyperactive-and-mixed-icu-delirium-a-protocol-for-the-basel-prodex-clinical-trial
#12
Alexa Hollinger, Katrin Ledergerber, Stefanie von Felten, Raoul Sutter, Stephan Rüegg, Lukas Gantner, Sibylle Zimmermann, Andrea Blum, Luzius A Steiner, Stephan Marsch, Martin Siegemund
BACKGROUND/OBJECTIVES: Delirium is a neurobehavioural disturbance that frequently develops particularly in the intensive care unit (ICU) population. It was first described more than half a century ago, where it was already discovered as a state that might come along with serious complications such as prolonged ICU and hospital stay, reduced quality of life and increased mortality. However, in most cases, there is still lack of proof for causal relationship. Its presence frequently remains unrecognised due to suggested predominance of the hypoactive form...
July 13, 2017: BMJ Open
https://www.readbyqxmd.com/read/28697436/fe3o4-nanoparticles-modified-by-cd-containing-star-polymer-for-mri-and-drug-delivery
#13
Ruitao Cha, Juanjuan Li, Yang Liu, Yifan Zhang, Qian Xie, Mingming Zhang
Fe3O4 nanoparticles with ultrasmall sizes show good T1 or T1+T2 contrast abilities, and have attracted considerable interest in the field of magnetic resonance imaging (MRI) contrast agents. For effective biomedical applications, the colloidal stability and biocompatibility of the Fe3O4 nanoparticles need to be improved without reducing MRI relaxivity. In this paper, star polymers were used as coating materials to modify Fe3O4 nanoparticles in view of their dense molecular architecture with moderate flexibility...
June 30, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28676458/vitamin-d-deficiency-and-sex-specific-dysregulation-of-placental-inflammation
#14
Nancy Q Liu, Dean P Larner, Qingqiang Yao, Rene F Chun, Yuxin Ouyang, Rui Zhou, Jennifer A Tamblyn, Carol L Wagner, Martin Hewison
To investigate an immunomodulatory role for vitamin D in pregnancy we used mice raised on vitamin D-sufficient (SUFF), or -deficient (DEF) diets. At embryonic day 14, pregnant mice received intraperitoneal injection of lipopolysaccharide (LPS) or vehicle for 24h, with age-matched non-pregnant mice as controls. In non-pregnant mice, 6 serum analytes (IL-1β, IL-18, MDC/CCL22, MIP-1α/CCL3, EGF, IgA) were lower in DEF mice. In pregnant DEF mice only GH was higher. In non-pregnant mice LPS induced 28 analytes, with 5 (IL-18, IP-10/CXCL10, MCP-1/CCL2, MIP-1β/CCL4, MIP-3β/CCL19) being highest in DEF mice...
July 1, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28670483/best-practices-in-social-and-behavioral-research-report-from-the-enhancing-clinical-research-professional-s-training-and-qualifications-project
#15
Susan L Murphy, Christine Byks-Jazayeri, Nancy Calvin-Naylor, Vic Divecha, Elizabeth Anderson, Brenda Eakin, Alecia Fair, Laura Denton
INTRODUCTION: This article discusses the process of defining competencies and development of a best practices training course for investigators and clinical research coordinators who conduct social and behavioral research. METHODS: The first project phase established recommendations for training in Good Clinical Practice (GCP) and was done in conjunction with representatives from 62 Clinical and Translational Science Award (CTSA) hubs. Diversity in behavioral clinical trials and differences in regulation of behavioral trials compared with clinical trials involving drugs, devices, or biologics necessitated a separate Social and Behavioral Work Group...
February 2017: Journal of clinical and translational science
https://www.readbyqxmd.com/read/28664271/-changes-in-the-german-medicinal-product-act-imposed-by-the-eu-regulation-on-clinical-trials
#16
REVIEW
Lars Nickel, Yvonne Seibel, Marion Frech, Thomas Sudhop
The entry into force of Regulation (EU) No. 536/2014 of the European Parliament, the Council of 16 April 2014 for clinical trials on medicinal products for human use, and repealing Directive 2001/20/EC necessitated amendments to the national legislation on medicinal products. These changes mainly concern the sixth chapter of the German Medicinal Products Act (Arzneimittelgesetz, AMG) and the elimination of the GCP (good clinical practice) ordinance for clinical trials that will be covered by the regulation in the future...
August 2017: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
https://www.readbyqxmd.com/read/28659162/acupuncture-paired-with-herbal-medicine-for-prediabetes-study-protocol-for-a-randomized-controlled-trial
#17
Xinger Li, Haiyan Liu, Huiping Feng, Zhongren Xian, Yanhong Chen, Jianping Chen, Chunzhi Tang, Xinsheng Lai, Xiaoling Lan, Huanzhen Huang, Dongdong Yu
BACKGROUND: Type-2 diabetes has become a major disease and is known to seriously impair people's health worldwide. Prediabetes includes impaired fasting glucose (IFG) and impaired glucose tolerance (IGT) and is the most critical period for preventing type-2 diabetes, as it can be identified and reversed. Studies in the past decade have indicated that acupuncture and Chinese herbal medicine may be beneficial for treating prediabetes. However, a randomized controlled trial (RCT) should be conducted to obtain more clinical evidence on this topic...
June 28, 2017: Trials
https://www.readbyqxmd.com/read/28652934/phytochemical-rich-medicinal-plant-extracts-suppress-bacterial-antigens-induced-inflammation-in-human-tonsil-epithelial-cells
#18
Niluni M Wijesundara, Satvir Sekhon-Loodu, Hp Vasantha Rupasinghe
BACKGROUND: Pharyngitis is an inflammatory condition of the pharynx and associated structures commonly caused by the Group A streptococci (GAS). There is a growing interest in discovering plant-based anti-inflammatory compounds as potential alternatives to conventional drugs. This study evaluated anti-inflammatory activity of phytochemical-rich extracts prepared from 12 herbal plants using human tonsil epithelial cells (HTonEpiC) in vitro. METHODS: The HTonEpiC were induced by a mixture of lipoteichoic acid (LTA) and peptidoglycan (PGN) (10 µg/mL; bacterial antigens) for 4 h and then exposed to ethanol extracts (EE) or aqueous extracts (AE) for 20 h...
2017: PeerJ
https://www.readbyqxmd.com/read/28641421/effective-empirical-corrections-for-basis-set-superposition-error-in-the-def2-svpd-basis-gcp-and-dft-c
#19
Jonathon Witte, Jeffrey B Neaton, Martin Head-Gordon
With the aim of mitigating the basis set error in density functional theory (DFT) calculations employing local basis sets, we herein develop two empirical corrections for basis set superposition error (BSSE) in the def2-SVPD basis, a basis which-when stripped of BSSE-is capable of providing near-complete-basis DFT results for non-covalent interactions. Specifically, we adapt the existing pairwise geometrical counterpoise (gCP) approach to the def2-SVPD basis, and we develop a beyond-pairwise approach, DFT-C, which we parameterize across a small set of intermolecular interactions...
June 21, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28636358/transferable-atom-centered-potentials-for-the-correction-of-basis-set-incompleteness-errors-in-density-functional-theory
#20
A Otero-de-la-Roza, Gino A DiLabio
Recent progress in the accurate calculation of noncovalent interactions has enabled density-functional theory (DFT) to model systems relevant in biological and supramolecular chemistry. The application of DFT methods using atom-centered Gaussian basis sets to large systems is limited by the number of basis functions required to accurately model thermochemistry and, in particular, weak intermolecular interactions. Basis set incompleteness error (BSIE) arising from the use of incomplete basis sets leads to erroneous intermolecular energies, bond dissociation energies, and structures...
July 21, 2017: Journal of Chemical Theory and Computation
keyword
keyword
116539
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"