A Y chromosomal polymorphic markers screening strategy using a multiplex polymerase chain reaction (PCR) and DNA microchip electrophoresis technology has recently been developed. It is a part of the human Y chromosome haplotyping system for studying Japanese population genetics and its relationship with male spermatogenic failure. This strategy is based on optimizing and modifying the primer set concentrations while keeping all other components of the PCR mixtures and conditions similar to those of a singleplex PCR. Well-balanced PCR products are obtained without changing even the DNA oligomer melting temperatures. Here, a panel of primer sets are used to amplify two groups of Y chromosome markers. The first consists of five markers and the second consists of seven markers. Both are possibly deleted in infertile men. The microchip electrophoresis technology is fast and sensitive, enables direct molecular typing of several Y chromosomal markers, and is separated by a difference of as many as six base pairs.
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http://dx.doi.org/10.1093/chromsci/43.5.221 | DOI Listing |
Capillary zone electrophoresis (CZE) is gaining attention in the field of single-cell proteomics for its ultra-low-flow and high-resolution separation abilities. Even more sample-limited yet rich in biological information are phosphoproteomics experiments, as the phosphoproteome composes only a fraction of the whole cellular proteome. Rapid analysis, high sensitivity, and maximization of sample utilization are paramount for single-cell analysis.
View Article and Find Full Text PDFMolecules
November 2024
Department of Chemistry, Josip Juraj Strossmayer University of Osijek, Cara Hadrijana 8, HR-31000 Osijek, Croatia.
Amino acids (AAs) have broad nutritional, therapeutic, and medical significance and thus are one of the most common active ingredients of nutritional supplements. Analytical strategies for determining AAs are high-priced and often limited to methods that require modification of AA polarity or incorporation of an aromatic moiety. The aim of this work was to develop a new method for the determination of L-arginine, L-ornithine, and L-lysine on low-cost microchip electrophoresis instrumentation conjugated with capacitively coupled contactless conductivity detection.
View Article and Find Full Text PDFJ Chromatogr A
January 2025
School of Material Science and Chemical Engineering, Ningbo University, Ningbo, 315211, China; Key Laboratory of Advanced Mass spectrometry and Molecular Analysis of Zhejiang Province, Ningbo University, Ningbo, 315211, China.
B-complex vitamins are essential micronutrients that maintaining health, and provide (individually/simultaneously) many important biological actions in organism. Therefore, sensitive, reliable analytical method to determine B-complex vitamins simultaneously in actual samples is significant. Conventional analytical methods for vitamins analysis are usually labor-intensive, time-consuming and mostly do not allow the simultaneous determination.
View Article and Find Full Text PDFElectrophoresis
November 2024
Institute of Analytical Chemistry of the Czech Academy of Sciences, Brno, Czech Republic.
The review covering the development of capillary electrophoresis with capacitively coupled contactless conductivity detection from 2020 to 2024 is the latest in a series going back to 2004. The article considers applications employing conventional capillaries and planar lab-on-chip devices as well as fundamental and technical developments of the detector and complete electrophoresis instrumentation.
View Article and Find Full Text PDFPLoS One
November 2024
Faculté de Médecine et des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, QC, Canada.
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