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Analysis of 10 systemic pesticide residues in various baby foods using liquid chromatography-tandem mass spectrometry
Jae-Han Shim, Angel Yang, A. M. Abd El-Aty, Jong-Hyouk Park, Ayman Goudah, Md. Musfiqur Rahman, Jung-Ah Do

The method developed was sensitive and selective, and detected the analytes below the MRL established by the European Commission and the Korea Food and Drug Administration. The combination of QuEChERS sample preparation and LC-MS/MS analysis provided acceptable quantitative and qualitative results in baby food.

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Residue Analysis of Etoxazole in Red Pepper using Gas Chromatography: Application to Dissipation Pattern
Sung-Woo Kim, Jin Jang, Md. Musfiqur Rahman, A. M. Abd El-Aty, Ah-Young Ko, Jong-Heui Choi, Jae-Han Shim

The dSPE of QuEChERS was replaced with an SPE cartridge, which provided a very clean chromatogram, although a small recovery percentage was obtained. The method fulfilled all validation criteria and was useful for monitoring etoxazole residues in red pepper. It can also be used and optimized for other fruit and vegetable matrices.

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Simultaneous multi-determination and transfer of eight pesticide residues from green tea leaves to infusion using gas chromatography
Sung-Woo Kim, Soon-Kil Cho, A. M. Abd El-Aty, Md. Musfiqur Rahman, Jeong-Heui Choi, Jae-Han Shim

Acetonitrile was used as the extraction solvent with sodium chloride to enhance the partitioning of analytes into the organic phase. Recovery indicated good method accuracy and repeatability, and was within the acceptable range for residue determinations. The mere presence of pesticide residues in tea does not necessarily mean that the tea has become toxic and would pose a health hazard. We revealed that only a negligible or small percentage of pesticides in tea is transferred to the infusion.

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Matrix enhancement effect: A blessing or curse for gas chromatography?
Jae-Han Shim, Md. Musfiqur Rahman, A. M. Abd El-Aty

A sharp, narrow, and sensitive peak is a pre-condition for a sensitive GC analysis. Therefore, a protectant is needed to protect the analyte from any type of distortion for integration and to prevent overestimation. Existing solutions do not overcome these problems completely due to limitations. As the matrix enhancement problem originated from matrix components, its solution should come from similar components.

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Novel Gpr39 Agonists: Correlation Of Binding Affinity Using Label-Free Back-Scattering Interferometry With Potency In Functional Assays
Daniel Brown (1), Niklas Larsson (2), Ola Fjellström (3), Anders Johansson (3), Sara Lundqvist (2), Johan Brengdahl (2), and Richard J. Isaacs (1)

We describe the application of back-scattering interferometry (BSI) to the characterization of small molecule ligand binding to human GPR39 (a GPCR targeted for type-2 diabetes therapy) overexpressed in crude membrane fractions in free solution, including how BSI-derived affinity and functional assay-derived potency correlate for compounds of varying scaffolds

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Characterisation & Potential Applications of Human iPS Cell Derived Neural Progenitor Cells
Wei J1., Gibbons G1., Lopez Alcantara S2., Dale T2., González Rueda A3., Paulsen O3. & Cox C1.

We characterised iPS cell-derived human neural progenitor cells (hNPCs) and their progeny produced using optimised methods to examine their suitability for neurobiology research.

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MAB Discovery Technology: A Smart Way to Highly Diverse and Functional Therapeutic Antibodies
Hans-Willi Krell

MAB Discovery GmbH developped a highly integrated process which provides diverse antibodies by starting with a high number of B cells and filtering the relevant antibodies by an early-on functional screening.

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PRESEPSIN, A SOLUBLE CD14-SUBTYPE, A POSSIBLE NEW BIOMARKER INCREASES IN SEPTIC PATIENTS’ PLASMA FROM PEDIATRIC DEPARTMENT.
Hayato YAMAGUCHI1), Satoshi KIMURA1), Seiji FUKUOKA1), Emiko NAKAMA1), Hideyasu OTO2), Makoto INOUE2), Takashi SOGA2), Shigetaka KITAZAWA2), Yoh UMEDA2)

Increased plasma concentration of soluble CD14-subtype (presepsin) was observed in pediatric patients with bacteremia. Presepsin could be a possible biomarker of sepsis in pediatric patients, however, their reference interval in children could be lower than that of adults. More studies with larger number of samples are required to confirm the result.

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DETERMINATION OF HOMOCYSTEINE THIOLACTONE IN URINE BY FIELD AMPLIFIED SAMPLE INJECTION AND SWEEPING MEKC METHOD WITH UV DETECTION
Paulina Furmaniak, Pawel Kubalczyk, Kamila Borowczyk, Rafal Glowacki

* The procedure does not overload the capillary and has positive effect on the increase in peak hight,
* The method allows about 70-fold increase in method sensitivity,
* The limits of detection and quantification are 0.1 nmol and 0.09 nmol of Hcy-thiolactone in 1 mL of urine, respectively,
* Presented assay can be used for the determination of Hcy-thiolactone in biological samples.

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Scientific News
Hookworm Genome Sequenced
UMMS sequences hookworm genome; may lead to new treatments for tropical disease.
DNA Reveals Surprise Connections Between Britain and Europe 8,000 Years Ago
New evidence shows wheat reached Britain 2,000 years before the arrival of wheat farming.
A Gene For Brain Size - Only Found In Humans
Following the traces of evolution: Max Planck Researchers find a key to the reproduction of brain stem cells.
A Faster, Less Expensive Way To Analyze Gene Activity
Yale researchers have devised a method that could reduce the time and cost of analyzing gene activity.
Alzheimer's Disease Linked To Heart's Effect On The Brain
Theory suggests that Alzheimer’s Disease has its origin in the heart and vascular system.
NIH Announces $41.5 Million in Funding for the Human Placenta Project
Better understanding of the placenta promises to improve the health of mothers and children.
New Nanodevice Defeats Drug Resistance
Tiny particles embedded in gel can turn off drug-resistance genes, then release cancer drugs.
On Time, On Target
A novel tool could help personalize cancer treatments.
Garlic Could Aid Cystic Fibrosis Fight
A chemical in garlic kills bacteria that cause deadly infections in people with cystic fibrosis, University of Edinburgh research shows.
3D-Printed Guides Can Help Restore Function In Damaged Nerves
Scientists at the University of Sheffield have succeeded in using a 3D printed guide to help nerves damaged in traumatic incidents repair themselves.
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