J. M. Quesada

Papers

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About

J. M. Quesada is a leading researcher in clinical biochemistry and nutritional biochemistry, with a primary focus on vitamin D metabolism and analytical method development for fat-soluble vitamins. His major contributions center on advancing high-performance liquid chromatography (HPLC) techniques for the precise, simultaneous measurement of multiple vitamin metabolites in human serum. His most-cited work, a 2004 paper describing a fully automated HPLC method for determining 24,25(OH)2 and 25(OH) D3 hydroxyvitamins alongside vitamins A and E, has garnered 45 citations and remains a foundational reference for laboratories studying vitamin D status and related health outcomes. This methodological innovation significantly improved the efficiency and reliability of vitamin profiling, enabling more accurate assessments in clinical and epidemiological research. Quesada’s work has directly supported studies on bone health, endocrine disorders, and nutritional deficiencies, and his automated approach has been widely adopted in clinical settings. His research continues to influence the fields of analytical chemistry and nutritional science, providing essential tools for understanding the complex interplay between vitamin D metabolites and human health.