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An In Silico Test Battery for Rapid Evaluation of Genotoxic and Carcinogenic Potential of Chemicals
Kiril Lanevskij, Liutauras Juska, Justas Dapkunas, Andrius Sazonovas, Pranas Japertas and Remigijus Didziapetris, of ACD/Labs and Vilnius University

The FDA guidance for industry states impurities under the ICH threshold may be exaluated for genotoxicity and carcinogenicity. This study uses an expert system to detect mutagens and compounds labeled as potent carcinogens by the FDA.

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A Systematic Review of Lifestyle Modification in Adults with Non-Alcoholic Fatty Liver Disease
C. Thoma, C. P. Day and M. I. Trenell, Newcastle University

This study reviews the causes of non-alcoholic fatty liver disease and the associated risk factor for type 2 diabetes and cardiovascular disease.

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Cytotoxicity Screen of Mangiferin and its Major Metabolite Norathyriol in Human Tumor Cell Lines
Souza, J.R.R., Feitosa, J.P.A., Ricardo, N.M.P.S, Trevisan, M.T.S., Frei, E., Ulrich C.M., Owen, R.W.

Many natural products are available worldwide as potential chemoprotective agents against commonly occurring cancers, for example Mangiferin which has low bioavailability and is thought to be mainly available in the colon.

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ASSESSMENT OF A MICROPATTERNED HEPATOCYTE CO-CULTURE SYSTEM TO DETECT COMPOUNDS THAT CAUSE DRUG INDUCED LIVER INJURY IN HUMANS
Salman Khetani, Chitra Kanchagar, Stacy Krzyzewski, Michael D. Aleo and Yvonne Will

This case study demonstrates the increased success of Hepregen’s novel micro-patterned co-culture system in identifying primary and secondary circulating and excretory metabolites when compared to liver microsomes, S-9 fractions and primary human hepatocyte suspensions for a series of 27 compounds with known in vivo human metabolite profiles.

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Nanoliter Volume Pin Tool Transfers as Measured by a Dual-Dye Absorbance Method
Duong T. Chau; Patrick H. Cleveland, Ph.D.; John Thomas Bradshaw, Ph.D.

Increasing costs of chemical compounds and commonly used solvents has pushed high throughput screening labs towards lower working volumes, specifically in the nanoliter range. The ability to controllably dispense “known” nanoliter aliquots of samples is desired, which can readily be achieved using Pin Tools.

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Why Is My Assay Failing? An Approach to Assay Equipment Optimization
Tanya R. Knaide, John Thomas Bradshaw, Kevin Khovananth, Keith Albert

Assays can produce unexpected or failing results for a multitude of reasons. Variability may be introduced at any point within the assay process.

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Validation of an Automated Cell-Based Bioluminescent TNFa Blocker Bioassay
Brad Larson, Tracy Worzella, Rich Moravec, Neal Cosby, Frank Fan, Teresa Surowy and Peter Banks

TNFa blocker biopharmaceuticals represent an important and successful class of protein drugs used in the treatment of several autoimmune diseases. Bioassays are indispensible tools in biopharmaceutical drug development and commercialization that are used to quantify biological activity and stability of drugs or drug candidates. The automation of these assays can serve to create an accurate, robust process which can allow the researcher to perform other more important functions.

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Modeling Disposition of Sotalol following Intravenous and Oral Administration in Healthy Adult Subjects
S. Ray Chaudhuri, V. Lukacova and W. S. Woltosz

Sotalol is a non specific adrenergic beta-antagonist that is used in the treatment of life-threatening arrhythmia. Its absorption, distribution and systemic PK or, collectively, ‘disposition’ was modeled and simulated using GastroPlus™ v7.0. Biopharmaceutical properties were obtained from in silico predictions and in vitro measurements.

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Predicting hERG Potassium Channel Affinity with Artificial Neural Network Ensembles
Adam C. Lee, GrazynaFraczkiewicz, Robert Fraczkiewicz, Robert D. Clark and Walter S. Woltosz

Modeling hERG inhibition has gained significant popularity since 2005, when the FDA recognized the correlation between hERG inhibition and a prolonged QT interval by issuing guidance for the evaluation of new non-antiarrythmic drugs against the hERG channel.Long QT syndrome or LQTS is a risk factor for ventricular tachyarrhythmias and sudden death.

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Showing Results 31 - 40 of 124
Scientific News
Quotient Clinical Completes Innovative First-In-Human Program
First-in-human clinical program designed to develop an optimal oral formulation.
Neuropsychiatric Drug Candidate Shows Good Safety & Tolerability
Transition Therapeutics announces results from Phase 1 AME & renal clearance clinical studies of neuropsychiatric drug candidate ELND005.
IUPUI Chemist Earns Grant to Improve Drug Screening in Forensics
$273,826 award to improve the speed and accuracy of mass spectrometry for detecting drugs and poisons.
Hearts On A Chip To Aid Drug Screening
UC Berkeley bioengineers have developed a heart-on-a-chip which can be used for drug safety screening.
Using Human Stem Cells To Identify Dangerous Side Effects Of Drugs
Scientists have developed a test that uses cells from a single donor's blood to predict whether a new drug will cause a severe reaction in humans.
3-D Engineered Bone Marrow Makes Functioning Platelets
Scalable model supports patient-specific treatments, advanced study of blood disorders.
Single-Cell, 42-plexed Protein Analysis Achieved with a New Microchip Technology
A novel microdevice capable of detecting 42 unique immune effector proteins has been developed.
Mini Synthetic Organism Instead Of Test Animals
Using a compact multi-organ chip, and those of three separate microcircuits, researchers can study the regeneration of certain kidney cells.
Novel Organoid Matrix Enables Long-Term Culture of Human Hepatocytes
Organoid growth matrix to enable long-term culture of genome-stable bipotent stem cells from adult human liver.
First Contracting Human Muscle Grown in Laboratory
Researchers at Duke University report the first lab-grown, contracting human muscle, which could revolutionize drug discovery and personalized medicine.
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