Matrix-assisted laser desorption ionization mass spectrometry (MALDI-MS) has been used for quantitative analysis of small molecules for many years. It is usually preceded by an LC separation step when complex samples are tested. With the development several years ago of "modern MALDI" (automation, high repetition laser, high resolution peaks), the ease of use and performance of MALDI as a quantitative technique greatly increased. This review focuses on practical aspects of modern MALDI for quantitation of small molecules conducted in an ordinary way (no special reagents, devices or techniques for the spotting step of MALDI), and includes our ordinary, preferred methods The review is organized as 18 recommendations with accompanying explanations, criticisms and exceptions.
Download full-text PDF |
Source |
---|---|
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5323262 | PMC |
http://dx.doi.org/10.1016/j.chroma.2017.01.040 | DOI Listing |
J Nanobiotechnology
January 2025
Department of Orthopedics, Zhuhai Medical College (Zhuhai People's Hospital), State Key Laboratory of Bioactive Molecules and Druggability Assessment, College of Chemistry and Materials Science, Jinan University, Zhuhai, 519000, China.
Spinal cord injury (SCI) is a critical condition affecting the central nervous system that often has permanent and debilitating consequences, including secondary injuries. Oxidative damage and inflammation are critical factors in secondary pathological processes. Selenium nanoparticles have demonstrated significant antioxidative and anti-inflammatory properties via a non-immunosuppressive pathway; however, their clinical application has been limited by their inadequate stability and functionality to cross the blood-spinal cord barrier (BSCB).
View Article and Find Full Text PDFAnal Bioanal Chem
January 2025
Gene Engineering and Biotechnology of Beijing Key Laboratory, College of Life Sciences, Beijing Normal University, Beijing, 100875, China.
Alkaline phosphatase (ALP) is a nonspecific phosphatase, and its interaction with substrates mainly depends on the recognition of phosphate groups on the substrate. Previous enzymatic research has focused mainly on the enzymatic reaction kinetics of the inorganic small molecule p-nitrophenol phosphate (pNPP) as a substrate, but its interaction with biomacromolecule substrates has not been reported. In current scientific research, ALP is often used for molecular cloning, such as removing the 5' termini of nucleic acids.
View Article and Find Full Text PDFPediatr Res
January 2025
Department of Paediatrics, Monash University, Melbourne, VIC, Australia.
Cell therapies as treatments for neonatal conditions have attracted significant research and parent interest over the last two decades. Mesenchymal stromal cells, umbilical cord blood cells and neural stem cells translate from lab, to preclinical and into clinical trials, with contributions being made from all over the world. Effective and timely translation involves frequent reflection and consultation from research-adjacent fields (i.
View Article and Find Full Text PDFGeroscience
January 2025
Department of Molecular Pharmacology and Physiology, University of South Florida, Morsani College of Medicine, 12901 Bruce B. Downs Blvd., Tampa, FL, USA.
Cellular senescence contributes to inflammation and organ dysfunction during aging. While this process is generally characterized by irreversible cell cycle arrest, its morphological features and functional impacts vary in different cells from various organs. In this study, we examined the expression of multiple senescent markers in the lungs of young and aged humans and mice, as well as in mouse lung endothelial cells cultured with a senescence inducer, suberoylanilide hydroxamic acid (SAHA), or doxorubicin (DOXO).
View Article and Find Full Text PDFCommun Biol
January 2025
Division of Microbiology, Faculty of Pharmaceutical Sciences, Tohoku Medical and Pharmaceutical University, 4-4-1, Komatsuhima, Aoba-ku, Sendai, Miyagi, 981-8558, Japan.
Future pandemic threats may be caused by novel coronaviruses and influenza A viruses. Here we show that when directly added to a cell culture, 12mer guanine RNA (G12) and its phosphorothioate-linked derivatives (G12(S)), rapidly entered cytoplasm and suppressed the propagation of human coronaviruses and influenza A viruses to between 1/100 and nearly 1/1000 of normal virus infectivity without cellular toxicity and induction of innate immunity. Moreover, G12(S) alleviated the weight loss caused by coronavirus infection in mice.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!