Life and health scientists

Johan Paulsson

Johan Paulsson is a Swedish mathematician and systems biologist at Harvard Medical School, a professor there since 2005 who studies how random molecular fluctuations dictate life in single cells.

Johann Bauersachs

Johann Bauersachs is a German cardiologist and director of cardiology at Hannover Medical School since 2010, known for microRNAs in heart failure and the DIGIT-HF trial.

Johann Deisenhofer

Johann Deisenhofer, born in 1943, is a German American biochemist who shared the 1988 Nobel Prize in Chemistry for the first atom-by-atom structure of a membrane protein.

Johann Georg Mönckeberg (1877–1925) was a German pathologist, born in Hamburg, who first described Mönckeberg medial calcific sclerosis, a non-obstructive calcification of muscular arteries, in 1903 and held pathology chairs at Düsseldorf, Strassburg, Tübingen, and Bonn.

Johann Hoffmann (neurologist)

Johann Hoffmann (1857–1919) was a German neurologist who spent his career at Heidelberg and is known for Werdnig–Hoffmann disease, Hoffmann's syndrome, and the finger-flexion Hoffmann sign.

Johann S. de Bono

Johann S. de Bono, also known as Johann de Bono, is a British medical oncologist and Regius Professor of Cancer Research who led pivotal trials of abiraterone, enzalutamide, and olaparib.

Johanna Ivaska

Johanna Ivaska, born 1972, is a Finnish cancer cell biologist and Professor of Molecular Cell Biology at the University of Turku, known for her work on integrins in cancer.

Johanna Joyce

Johanna A. Joyce is a cancer biologist and Full Professor of Oncology at the University of Lausanne, known for reprogramming tumor-associated macrophages to slow glioblastoma.

Johanna M. Seddon

Johanna M. Seddon is an American ophthalmologist and genetic epidemiologist who established macular degeneration as a disease of both lifestyle and inherited risk, directing the Macular Degeneration Center of Excellence at UMass Chan Medical School.

Johanna Schmitt

Johanna Schmitt is an evolutionary ecologist and plant geneticist at the University of California, Davis, known for field experiments showing how Arabidopsis thaliana adapts to climate.

Johannes Büchner

Johannes Buchner (born 1960) is a German biochemist who heads the Chair of Biotechnology at the Technical University of Munich and is known for his work on molecular chaperones.

Johannes C. Walter

Johannes C. Walter, also known as Johannes Walter, is an American biochemist and HHMI investigator at Harvard Medical School who studies how vertebrate cells replicate and repair DNA.

Johannes D. Veldhuis

Johannes D. Veldhuis, also known as J. D. Veldhuis, is an endocrinologist at Mayo Clinic in Rochester, Minnesota, known for deconvolution methods that measure pulsatile hormone secretion and its decline with aging.

Johannes F.E. Mann

Johannes F.E. Mann, also known as Johannes Mann, is a German nephrologist, Professor of Medicine at Erlangen-Nürnberg since 1989, known for kidney and cardiovascular protection trials in diabetes.

Johannes Fibiger

Johannes Andreas Grib Fibiger was a Danish physician and pathologist at Copenhagen University who won the 1926 Nobel Prize for a cancer-worm discovery later shown wrong.

Johannes Gräff

Johannes Gräff is a Swiss neuroscientist who heads the Laboratory of Neuroepigenetics at EPFL in Lausanne, studying how epigenetic mechanisms govern learning, memory, and memory loss.

Johannes Herrmann

Johannes M. Herrmann is a German cell biologist, professor at RPTU Kaiserslautern-Landau since 2006, known for the mitochondrial disulfide relay and ER-SURF pathways; he joined the Leopoldina in 2020.

Johannes Krause

Johannes Krause, born 1980, is a German archaeogeneticist who directs the Department of Archaeogenetics at the Max Planck Institute for Evolutionary Anthropology in Leipzig, and won the 2026 Leibniz Prize.

Johannes L. Bos

Johannes L. Bos, known as Hans Bos, is a Dutch molecular cancer researcher, professor at UMC Utrecht from 1991, known for showing Ras mutations are frequent in human tumors and for discovering Epac.

Sep 17, 2026

Johannes Lehmann

Johannes Lehmann is a German-born soil biogeochemist at Cornell University known for research on soil organic matter and biochar, elected to the National Academy of Sciences in 2023.

Johannes Schmidt (Danish biologist)

Johannes Schmidt, in full Ernst Johannes Schmidt (1877–1933), was a Danish marine biologist who traced eel larvae across the Atlantic to the Sargasso Sea breeding ground.

Johannes Söding

Johannes Söding is a computational biologist who leads a Max Planck group in Göttingen and created the widely used protein bioinformatics tools HHpred, MMseqs2, and Foldseek.

Johannes von Kries

Johannes von Kries (1853–1928) was a German physiological psychologist who held the Freiburg physiology chair from 1880 and is known for the duplicity theory of vision and the Spielraum theory of probability.

Johannes Zuber

Johannes Zuber, born 1974 in Dresden, is an Austrian-based molecular biologist and Senior Group Leader at the Research Institute of Molecular Pathology in Vienna, studying cancer dependencies through functional genomics.

John A. Assad

John A. Assad is a cognitive neuroscientist who studies how the brain represents visual information, economic value, and decisions to move; he is Professor of Neurobiology at Harvard Medical School.

John A. Bargh

John A. Bargh, also known as John Bargh, is an American social psychologist at Yale who studies unconscious influences on judgment and behavior, including priming.

John A. Baron

John A. Baron is an American physician and clinical epidemiologist known for randomized chemoprevention trials in colorectal cancer prevention, including the Calcium Polyp Prevention Study, and professor emeritus at Dartmouth.

John A. Bevan

John A. Bevan (1930–2007) was a British-born vascular pharmacologist known for work on vascular tone, adrenergic mechanisms, and the cerebral circulation, and as a pioneer of vascular pharmacology.