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Hermann Werner Siemens
German dermatologist

Hermann Werner Siemens

Hermann Werner Siemens
The basics

Quick Facts

Intro German dermatologist
A.K.A. Hermann Siemens
Was Physician Dermatologist Educator
From Germany
Field Academia Healthcare
Gender male
Birth 20 August 1891
Death 21 December 1969 (aged 78 years)
The details (from wikipedia)

Biography

Hermann Werner Siemens (20 August 1891 in Charlottenburg – 21 December 1969 in Leiden) was a German dermatologist who first described many skin diseases and was one of the inventors of the twin study.

Biography

Siemens studied at Berlin and Munich universities, receiving his doctorate in 1918. In 1929 he became chair of dermatology at Leiden in the Netherlands.

In a break-through study, he published "Zwillingspathologie" (Twin Pathology) in 1924 which introduced the widely used "classical twin method." He was the first to not only use twins in a study (to determine the role of genes over environment in skin moles), but to distinguish identical from fraternal twins, and use the correct 100%/50% genetic similarity inferences regarding these groups.

His influence on the invention of the twin study is not widely acknowledged, possibly due his support of the Nazi's eugenic policies. His book Foundations of Genetics, Racial Hygiene and Population Policy called for voluntary sterilization of "pathological persons" and later editions of the book included statements in praise of Hitler's ideas on racial hygiene. However, by 1942, he had lost his chair at Leiden and was even temporarily held hostage due to his resistance to the German occupation policies. Not until after the war did he regain his faculty position at Leiden, which he held until retirement.

During the period away from academia Siemens wrote a book about the ancestors of his father in law: Die Vorfahren von Friedrich von Müller, Munich, C.H. Beck, 1957 - 337 pages.

Diseases named after H.W.Siemens:

  • Christ-Siemens-Touraine syndrome (Hypohidrotic ectodermal dysplasia)
  • Hallopeau-Siemens syndrome (Recessive dystrophic epidermolysis bullosa)
  • Ichthyosis bullosa of Siemens
  • Siemens' syndrome 1 (Keratosis follicularis spinulosa decalvans)
  • Bloch Siemens syndrome (Incontinentia pigmenti)

The contents of this page are sourced from Wikipedia article. The contents are available under the CC BY-SA 4.0 license.
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