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Štěpán Jan J.

Prof., MUDr., DrSc.
Born on July 2, 1940

  • Osteology, endocrinology, enzymology
  • Member of Learned Society since 1995

Educational and professional preparation:

  • 1964, First Faculty of Medicine, Charles University, Prague (summa cum laude);
  • 1976, CSc.; 1986, DrSc.; 1991, Associate Professor; 1996, Full Professor.
  • In training: Universities at Prague, Jena, Amsterdam, London, Loma Linda, California (USA)

Employment and academic positions:

  • Charles University, First Faculty of Medicine, Department of Third Internal Medicine

Membership and positions in international organizations and societies:

  • Member, Committee of European Calcified Tissues Society
  • Member, Scientific Committee of International Osteoporosis Foundation
  • Member, International Bone and Mineral Society
  • Member, American Society for Bone and Mineral Research

Notable awards:

  • 1990, Award, Ministry of Health
  • 1995, Charvát Award


  • Monographs: 34; papers in peer-reviewed journals: 129.
  • SCI: over 1,400.

Selected publications:

  • J. Štěpán: Syndrom osteoporózy (The Syndrome of Osteoporosis). Prague, Avicenum, 1991
  • WHO Study Group: Assessment of Fracture Risk and its Application to Screening for Postmenopausal Osteoporosis. WHO Technical reports Series 843, World Health Organization, Geneva, 1994
  • J. Štěpán: Enzyme tests in bone disease. In: Enzyme Tests In Diagnosis (Moss D. W., Rosalki S. B., Eds.). Oxford University Press, New York 157 (1996)
  • J. Štěpán., J. Pospíchal, J. Presl, V. Pacovský: Bone loss and biochemical indi-ces of bone remodeling in surgically-induced postmenopausal women. Bone 8, 279 (1987)
  • J. Štěpán., M. Lachman, J. Zvěřina, V. Pacovský, D.J. Baylink: Castrated men exhibit bone loss. Effect of calcitonin treatment on biochemical indices of bone remodeling. J. Clin. Endocr. Metab. 69, 523 (1989)
  • M. Weichetová,  J. Štěpán., D. Michalská, T. Haas, H.A.P. Pols, A.G. Uiterlinden: COLIA1 Polymorphism Contributes to Bone Mineral Density to Assess Prevalent Wrist Fractures. Bone 26, 287 (2000)
  • J. Štěpán: Prediction of bone loss in postmenopausal women. Osteopor. Int. 11 (Suppl.6), 45-54 (2000)
  • J. Štěpán., P. Burckhardt, P., Hána, V.: The effects of three-month intravenous ibandronate on bone mineral density and bone remodeling in Klinefelter’s syndrome: the influence of vitamin D deficiency and hormonal status. Bone 33, 589 (2003)
  • J. Štěpán., V. Zikán: Calcitonin load test to assess the efficacy of salmon calcitonin. Clin. Chim. Acta 336, 49 (2003)
  • J. Štěpán: Clinical utility of bone markers in the evaluation and follow-up of osteoporotic patients. J. Endocrinol. Invest. 26, 458 (2003)

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Reaction to the case of Tomáš Hudlický: Members of the Learned Society of the Czech Republic support the freedom of expression

„We believe that free exchange of ideas is a key condition for the pursuit of truth and that the honest opinions should be scrutinized, challenged or rebutted but not censored or suppressed,“ say 45 members of the Learned Society in a statement regarding the retracted opinion paper by Prof. Tomáš Hudlický.


The letter by Jan Konvalinka to the President and Vice-Chancellor of the Brock University regarding the retracted article of Prof. Tomáš Hudlický

Opinions could and should be challenged, questioned or refuted but never silenced. In order to be able to think, we have to have the right to inquire, question and even offend or be mistaken,” writes Assoc. Prof. Jan Konvalinka, a biochemist at the IOCB Prague and the Vice-Rector of the Charles University, to Gervan Fearon.


Prof Miroslav Bárta receives the Česká hlava National Government Award

Learned Society member, Prof. Mgr. Miroslav Bárta, Dr. (Charles University Faculty of Arts) received the Česká hlava (Czech Head) National Government Award on 25 November 2019. A renowned Czech Egyptologist and archaeologist, Professor Bárta researches the history of ancient civilisations, the human relationship to the natural environment, and also for many years the evolution of complex societies. He leads the Czech Institute of Egyptology for archaeological and environmental research in Egypt and Sudan. His principal research interest is the period of the pyramid builders of the Old Kingdom.