Analysis of continuous enzyme kinetic data using ICEKAT

ICEKAT (Interactive Continuous Enzyme Analysis Tool) is an interactive web-based program for calculating initial rates and kinetic parameters (e.g., Vmax, kcat, KM, EC50, IC50) from continuous enzyme kinetic assay data that satisfy Michaelis-Menten and steady-state kinetic assumptions. ICEKAT is valuable in educational and research settings to consistently and accurately calculate initial rates and kinetic parameters, increasing assay veracity and reproducibility. Provided freely online to the scientific community, ICEKAT has been cited in at least 26 publications, and the initial journal article has been accessed nearly 9000 times since its debut in 2020 (Olp et al., 2020). Here, we provide in-depth instructions for software use, offer vital considerations for data analysis, and highlight updated software features for new and existing users. Through ICEKAT, we aim for the analysis of data from continuous enzyme kinetic studies worldwide to become more rapid, reliable, and repeatable. ICEKAT remains free of charge and available to all scientists at https://icekat.herokuapp.com/icekat; the source code for local use is found at https://github.com/SmithLabMCW/icekat.

New method of creating hybrid of buprenorphine loaded rifampin/polyethylene glycol/alginate nanoparticles

An indicator for cytochrome P450 enzymes which have the most fundamental role in methadone metabolism in the liver. In this study preparation in vitro, in vivo release and biological activities of Fe₃O₄@ZnO/rifampin/polyethylene glycol/buprenorphine/alginate nanoparticles investigated. Rifampin is activator for the cytochrome P-3 enzymes which can detoxify residual drugs in the liver. This paper examines the changes pH, absorption rate, drug release, in vivo test (30 rats) in selected Wistar rats. All rats were either orally addicted to morphine after 21 days. After establishing dependence based on an observation of behavioral parameters the ability to quit the new drug was evaluated. In vitro and in vitro tests on antibacterial activity and multiple intestinal inflammation in addicts were conducted. Recent drug delivery systems that use polymers cause more sustainability of drug in the body and also prevent drug interactions. This research showed the success of decreasing consumption dose of the drug from 0.004 to 0.0005 mg, increasing lifetime from 24 to 32 h to 72-96 h, and decreasing the number of hepatic tissues that were damaged. The results of this investigation were confirmed by clinical tests and the dyeing process of mason tri‑chromium and hematoxylin and eosin.