Automated high-throughput RP-HPLC-MS and SFC-MS analytical and purification platforms to support drug discovery.

In recent years, the need to accelerate drug discovery processes in the pharmaceutical industry has revived the interest of implementing automated workflows, allowing the simultaneous processing of multiple samples on global processes that are referred as High-Throughput Purification (HTP). In this work, SAPIO Laboratory Information Management System (SAPIO LIMS) has been customized at the HTP laboratories of Janssen R&D to accommodate the needs of global purification groups on several automated HTP workflows, integrating Analytical Studio™ data processing tool on multiple steps. Herein we describe the workflow details from crude analysis via RP-LC-MS or SFC-MS systems to sample redissolution and delivery to Compound Logistics (CL) in tubes ready for assay plate preparation.

Results of Concurrent Patch Testing of Brazilian and Chinese Propolis.

Background: In Amsterdam, a steep increase in positive reactions to propolis in the European baseline series was observed from 2.8% in 2020 to 16.4% in 2023.

Parasitism as a potential driver of aposematism.

Aposematic animals couple unprofitability to predators, such as toxicity, with a warning signal, such as conspicuous coloration. Although toxicity and coloration can provide effective protection against predation, these traits also play a major role in the context of parasitism. Many of the color pigments used by aposematic animals are components of anti-infection immunity.

CBX7 inhibitors affect H3K9 methyltransferase-regulated gene repression in leukemic cells.

The epigenome of leukemic cells is dysregulated, and genes required for cell cycle arrest and differentiation may become repressed, which contributes to the accumulation of undifferentiated malignant blood cells. Here, we show that the Polycomb group protein CBX7 can interact with H3K9 methyltransferases EHMT1/2 and SETDB1. We aimed to assess whether combined interfering with these H3K9 methyltransferases and CBX7 could derepress target genes and thereby induce growth arrest of leukemic cells.

Safety Assessment of Butyric Acid-Rich Triglyceride Oil: A Novel Palatable Formulation of Butyrate for the Pediatric Population.

A novel, palatable butyric acid-rich triglyceride oil has been developed and is available as a food supplement for adults in the United States and Canada. A program of safety studies was conducted with butyric acid-rich triglyceride oil for the pediatric population. The oil was tested in a microbial reverse mutation assay Ames Test OECD471 (Organisation for Economic Co-operation and Development) in which all bacterial strains showed negative responses over the complete dose range in two independently repeated experiments.