Jaap Keijer

Jaap Keijer is a Full Professor and Chairholder in the Department of Human and Animal Physiology at Wageningen University & Research. His research focuses on metabolic physiology, particularly energy metabolism, mitochondrial function, and the interplay between diet, aging, and chronic metabolic diseases. He leads projects investigating nicotinamide nucleotide transhydrogenase (NNT) in energy metabolism, galactose's effects on metabolic programming, and the role of environmental factors like hypoxia in muscle physiology. He serves on the editorial board of Molecular Nutrition and Food Research and advises the German Institute of Human Nutrition. His work integrates molecular, cellular, and whole-organism approaches to understand health and disease mechanisms. Key research themes include metabolic adaptations in obesity, mitochondrial dysfunction in aging, and translational biomarker development for physical activity and metabolic health.

Dr. Keijer teaches courses on molecular nutritional physiology, model organisms for lifespan research, and dissection-free human/animal physiology. His projects address clinical challenges such as sarcopenia, atrial fibrillation, and nutrient interventions for metabolic disorders. Recent studies explore dietary galactose's programming effects on intestinal metabolism and the impact of NNT deficiency on cardiac health. His lab employs advanced techniques like single-cell transcriptomics and Seahorse extracellular flux analysis to study metabolic pathways in humans and animal models.

Publications emphasize mitochondrial dysfunction, metabolic biomarkers, and translational models for aging and disease. His work bridges basic research and clinical applications, aiming to improve metabolic health through dietary and lifestyle interventions. Current initiatives include developing a human gut-on-a-chip model and validating integrative biomarkers for physical activity in adolescents.