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A Weight-of-Evidence Approach to Prioritisation based on Consensus across Multiple Sources of Information
Roman Affentranger (1), Barry Hardy (1), Glenn Myatt (2), Nina Jeliazkova (3), Matthew Clark (4), Jeffrey Wiseman (4)

We present the results of initial work carried out within the OpenToxLink Virtual Organization, applying a Weight-of-Evidence (WoE) approach based on consensus across multiple sources of information for the prediction of adverse effects of a large set of potential antimalarial compounds. The work was carried out as part of the EU FP7 project SYNERGY, evaluating the support of decision dashboards and event-driven collaborative research of software developed within SYNERGY.

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Three-dimensional quantitative structure-activity relationship analysis and ADME predictions of guanylhydrazone coactivator binding inhibitors of estrogen receptors
Sergey Shityakov, Thomas Dandekar

The estrogen receptors (ER) refer to a group of the nuclear hormone receptor superfamily of ligand-mediated transcriptional factors. Over expression of this type of receptors leads to a breast cancer progression. Hormone-responsive breast cancer develops resistance to conventional anti-cancer therapy, and this becomes a major problem in a breast cancer therapy.

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New Approach for In Silico Genotoxicity Testing of Impurities and Degradants
Kiril Lanevskij, Liutauras Juska, Remigijus Didziapetris and Pranas Japertas

This study presents a novel approach to aid this assessment based on probabilistic predictors of mutagenicity in Ames test and binding to Estrogen Receptor, supplemented by a knowledge-based system of structural alerts.

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In silico Identification of Metabolic Soft Spots: Case Study Using ACD/ADME Suite Software
Justas Dapkunas, Andrius Sazonovas, Remigijus Didziapetris and Pranas Japertas

Metabolic stability, determined in liver microsomes, is one of the primary assays used in early drug discovery. A key factor limiting compound half-life is the cytochrome P450 mediated metabolism. High clearance by these enzymes implies a higher and more frequent dosing as well as poses a risk for individual variations in exposure.

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Differential Toxicities of Kinase Inhibitors (KI) on Bone Marrow Progenitors from Different Species
Clarke, E. and Dos Santos, G.

Myelotoxicity is often a side effect of kinase inhibitors. We reported a correlation (R2 = 0.81) between in vitro human CFU-GM IC50 values and clinical neutropenia. When these values were obtained from other species, non-human primate and dog values compared well with human data, but rat and mouse IC50 values differed significantly. This suggests rodent assays may not accurately predict toxicity to the human hematopoietic system.

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Development of Two Novel High-throughput Colorimetric Toxicity Detection Assays
Kimberly Lubell and Joseph Krebs

The MaxDiscovery Aspartate Transaminase (AST) and Lactate Dehydrogenase (LDH) Color Endpoint Assays permit visible detection of in vivo toxicity using only 5 µL of serum from rodents or other mammals. These novel assays employ simplified endpoint analysis to offer high sensitivity, low detection limits and the ability to use a visible plate reader.

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The use of the IV microtracer technique to drive formulation optimisation
Vanessa Zann, Paul Dickinson, Wang Wang Lee, George Kirk, Owen Jones, Andy Gray, Davindera Singh Sanghera, Mark Seymour, Jo Collier, Lloyd Stevens, Julie Dent

Strategy: Use IV microtracer techniquer to de risk compounds with PK issues and drive formulation development

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Addressing the challenges of poor solubility: Rapid development and clinical evaluation of a lipid based formulation to enhance oral bioavailability of amuvatinib (MP-470)
P.D. Scholes, J. McDermott, J. Vertommen, J-L Colin, G Choy, M Azab, R Joshi and S. Redkar

Physiochemical and biopharmaceutical properties of new chemical entities are presenting increasing challenges to successful oral drug delivery. Here we present data on amuvatinib, a novel multi-targeted tyrosine kinase inhibitor specifically designed to be a potent inhibitor of mutant c-Kit and PDGFRalpha.

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Elucidation of the Relative Bioavailability of a Drug Candidate from Different Regions of the Human Gastrointestinal Tract
David Harris, Ph.d. , Joanne Collier, MBCHB, Alyson Connor, Ph. D. , Tomoko Freshwater, Ph. D. , David Goldfarb, Ph. D. , Ann Horowitsz Ph. D. , Xuewen Ma, Ph. D. , Paul Statkevich, Ph. D.

This poster describes a pharmacokinetic study to investigate the relative absorption of an NCE from different regions of the human gastrointestinal tract, to support potential development of a sustained-release formulation.

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Showing Results 61 - 70 of 142
Scientific News
The Rise of 3D Cell Culture and in vitro Model Systems for Drug Discovery and Toxicology
An overview of the current technology and the challenges and benefits over 2D cell culture models plus some of the latest advances relating to human health research.
Alzheimer’s Protein Serves as Natural Antibiotic
Alzheimer's-associated amyloid plaques may be part of natural process to trap microbes, findings suggest new therapeutic strategies.
Vitamin A May Help Improve Pancreatic Cancer Chemotherapy
The addition of high doses of a form of vitamin A could help make chemotherapy more successful in treating pancreatic cancer, according to an early study by Queen Mary University of London (QMUL).
Breakthrough Approach to Breast Cancer Treatment
Scripps scientists have designed a drug candidate that decreases growth of breast cancer cells.
Non-Toxic Approach to Treating Variety of Cancers
A team of researchers at Sylvester Comprehensive Cancer Center at the University of Miami Miller School of Medicine recently discovered a novel, non-toxic approach to treating a wide variety of cancers.
Making Injectable Medicine Safer
Researchers remove excess additives from drugs, which could reduce the odds of serious allergic reactions and other side effects.
An Old-New Weapon Against Emerging Chikungunya Virus
Researchers utilize existing drugs to interfere with host factors required for replication of Chikungunya virus.
Brazilian Zika Virus Strain Causes Birth Defects in Experimental Models
First direct experimental proof of causal effect, researchers say.
'Kidney on a Chip' Facilitates Safer Drug Dosing
University of Michigan researchers have used a "kidney on a chip" device to mimic the flow of medication through human kidneys and measure its effect on kidney cells.
Ketamine Metabolism Lifts Depression
NIH-funded team finds rapid-acting, non-addicting agent in mouse study.
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