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Development and Validation of a Novel Post-Thaw Recovery Media for Human Cryopreserved Hepatocytes
Jie Wang, Rongjun Zuo, Haiyan Xia, Sweta N. Parikh, Mercyanne Andes, Charles L. Crespi and Christopher J. Patten

BD Biosciences has developed and validated a new post-thaw recovery medium for human cryopreserved hepatocytes. The recovery medium maintains hepatocyte post-thaw functions while improving cell health and recovery. The newly developed recovery medium was optimized with BD Gentest™ human inducible cryohepatocytes for viability and recovery.

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Probabilistic Predictive Model of the Human Liver Microsomal Metabolism Regioselectivity
Justas Dapkunas, Andrius Sazonovas, Pranas Japertas

Analytical identification of metabolites for a drug candidate is usually a time consuming and low-throughput task which is performed only in late drug development phases.Therefore, the ability to predict possible sites of human liver microsomal metabolism using in silico techniques would be highly beneficial for any medicinal chemist.

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Fully Automated LC-MS/MS-based Determination of Bosentanand its Metabolites in Dried Blood Spots using the SCAP™ DBS System
Mirko Glinski, Norbert Ganz, Jasper Dingemanse, Laurent Nicolas and Werner Döbelin

Dried Blood Spot (DBS) analysis is a very promising alternative to conventional whole blood and plasma analysis used in drug discovery and development or later in therapeutic drug monitoring with well documented advantages.

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AN INTEGRATED 1H NMR, GC-MS AND HPLC-(ESI/TOF) BASED METABOLOMICS APPROACH TO THE STUDY OF ACUTE EXERCISE IN HUMAN SERUM METABOLOME

There is an increasing concern about the different response and effect that acute exercise induces on diabetic people and a novel insight into this effect can be performed using a metabolomic approach. Metabolomic is becoming widely spread used as a new and powerful tool for discerning significant changes at metabolic level. In this study we aimed to perform a non-targeted analysis and to identify metabolic differences arisen after 30 minutes of acute exercise in both young men suffering from Ty

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Nucleic Acid Reagents and Experimental Results in the NCBI Probe Database
Svetlana Iazvovskaia, Ilene Karsch Mizrachi, Kirill Rotmistrovsky, and Savani Tatake

Five years ago, the NCBI Probe database (ProbeDB) was established to provide a centralized archive of molecular probes used in biomedical applications. Currently ProbeDB contains around 10 million probes of 65 types including gene silencing agents, in situ hybridization probes, and probes for variation analysis and genome mapping. Presently, ProbeDB is the largest and most extensive database of this type available in public domain.

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Alignment of 1H-NMR data using a Generalized Fuzzy Hough Transform
Erik Alm, Leonard Csenki, Ralf J.O. Torgrip, K. Magnus Åberg, Lars I. Nord, Ina Schuppe-Koistinen and Johan Lindberg

In metabolic profiling, multivariate data analysis techniques are used to interpret 1D 1H–NMR data. Multivariate data analysis techniques require that peaks are located in the same variables in every spectrum – this requirement is not met in native NMR spectra. Current state-of-the-art alignment algorithms are unable to align peaks when the spatial order of the peaks changes. We present the Fuzzy Generalized Hough Transform alignment which solves the alignment problem.

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Alteration of urinary metabolic profile in rats treated with methylmercury
Pierre Ayotte, Dinesh Kumar, Pierre-Yves Tremblay, Xiaolei Jin, Sevini Shahbaz, Rekha Mehta, Hing Man Chan, and Oliver Fiehn

A metabolomic approach was used to detect changes in urinary metabolic profile of rats treated orally with methylmercury (MeHg), a ubiquitous fish contaminant with well known neurotoxic properties. An aliquot of urine was collected on day 14, extracted and the extract successively methoxymated and trimethylsilylated prior to analysis by GC/TOF-MS. Results indicate that several metabolic pathways were altered by MeHg treatment, including urea cycle, glutathione metabolism and amino acid degradati

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Metabolite profiling of sesquiterpene lactones and phenolics of bioactive extracts from Asteraceae medicinal plants by HPLC-UV-MS
Gobbo-Neto, L.; Silva, V.C.; Passoni, F.D.; Chagas-Paula, D.A.; Oliveira, R.B.; Da Costa, F.B.

Metabolite profiling (HPLC-UV-MS) was performed for extracts from Tithonia diversifolia (Td) and Smallanthus sonchifolius (Ss) leaves [aqueous crude (ACE); leaf rinse (LRE); 70%MeOH rinsed leaves (GFE)]. LREs presented mainly sesquiterpene lactones (SLs) and flavonoids. FGEs and ACEs presented mainly chlorogenic acids. SLs were not detected in GFEs but traces were detected in ACEs. All extracts presented anti-inflammatory potential. LREs were highly toxic while GFEs did not presented significant

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Predicting hepatotoxicity: Reactive metabolite trapping using glutathione and freshly isolated hepatocytes
Birks, V., Webber, G., Geoffroy, S., Cole, R., and Wood, S.

This poster presents our results to date using clozapine (a compound known to be associated with GSH-adduct formation) as substrate and using stable isotope GSH (GSH13C2,15N) to enhance specificity. In addition, all analyses have been conducted using an Waters Acquity UPLC-MS/MS. Results we have obtained in hepatocytes are compared against findings using human liver microsomes (HLM).

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Scientific News
Could the Food we Eat Affect Our Genes?
Almost all of our genes may be influenced by the food we eat, according to new research.
Charting Kidney Cancer Metabolism
Changes in cell metabolism are increasingly recognized as an important way tumors develop and progress, yet these changes are hard to measure and interpret. A new tool designed by MSK scientists allows users to identify metabolic changes in kidney cancer tumors that may one day be targets for therapy.
Cytoskeleton Crew
Findings confirm sugar's role in helping cancers survive by changing cellular architecture.
Microbiome May Hold the Key to Fighting Obesity
In a unique study of free-ranging brown bears, Swedish researchers were able to show that the bears’ dietary variation goes hand-in-hand with dramatic changes in the animal’s gut microbiota.
Cancer Cells Kill Off Healthy Neighbours
Cancer cells create space to grow by killing off surrounding healthy cells, according to UK researchers working with fruit flies.
Future of Medicine Could be Found in a Tiny Crystal Ball
A Drexel University materials scientist has discovered a way to grow a crystal ball in a lab. Not the kind that soothsayers use to predict the future, but a microscopic version that could be used to encapsulate medication in a way that would allow it to deliver its curative payload more effectively inside the body.
Toxicity Testing With Cultured Liver Cells
Microreactor replaces animal testing.
Proteins Seek, Attack, Destroy Tumor Cells in Bloodstream
Using white blood cells to ferry potent cancer-killing proteins through the bloodstream virtually eliminates metastatic prostate cancer in mice, Cornell researchers have confirmed.
Why Do Some Infections Persist?
In preparing for the possibility of an antibiotic onslaught, some bacterial cultures adopt an all-for-one/one-for-all strategy that would make a socialist proud, University of Vermont researchers have found.
Flipping Molecular 'Switch' May Reduce Nicotine's Effects in the Brain
Scientists at The Scripps Research Institute (TSRI) have discovered that a lipid (fat molecule) in brain cells may act as a “switch” to increase or decrease the motivation to consume nicotine.
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