Ernst Rüdin’s Unpublished 1922-1925 Study “Inheritance of Manic-Depressive Insanity”: Genetic Research Findings Subordinated to Eugenic Ideology

Psychiatric genetics was established as a scientific discipline in the early 20th century. The intention was to provide evidence for the inheritance of mental illnesses. This was to open up new paths in prevention, since therapeutic options at the time were meagre. Applying modern study designs and statistical methods, the German psychiatrist Ernst Rüdin (1874–1952) found lower inheritance of affective disorders than anticipated. He surmised that external factors were also important in their development. From the vantage point of the present, his results were sound. However, this major study, titled “On the Inheritance of Manic-Depressive Insanity”, though developed as a manuscript, was never published. The question arises whether Rüdin doubted his own scientific methods and hence results, or if he was influenced by his ideological views and the expectations of the scientific community and German society. Whilst withholding his results, he continued to promote prevention of assumed hereditary mental illnesses by prohibition of marriage or sterilisation.

Published in the journal: . PLoS Genet 11(11): e32767. doi:10.1371/journal.pgen.1005524
Category: Research Article
doi: 10.1371/journal.pgen.1005524


Psychiatric genetics was established as a scientific discipline in the early 20th century. The intention was to provide evidence for the inheritance of mental illnesses. This was to open up new paths in prevention, since therapeutic options at the time were meagre. Applying modern study designs and statistical methods, the German psychiatrist Ernst Rüdin (1874–1952) found lower inheritance of affective disorders than anticipated. He surmised that external factors were also important in their development. From the vantage point of the present, his results were sound. However, this major study, titled “On the Inheritance of Manic-Depressive Insanity”, though developed as a manuscript, was never published. The question arises whether Rüdin doubted his own scientific methods and hence results, or if he was influenced by his ideological views and the expectations of the scientific community and German society. Whilst withholding his results, he continued to promote prevention of assumed hereditary mental illnesses by prohibition of marriage or sterilisation.


Formal genetic psychiatry was established in the early 20th century at a time of therapeutic nihilism, when psychiatry was strongly influenced by the theory of hereditary degeneration [17]. This combined with economic considerations, led to a change of emphasis from healing to prevention of the more severe types of psychiatric illness [1, 3, 8]. This was reflected in the popularity of the eugenics movement, which advocated measures such as restrictions on marriage or sterilisation to prevent inherited disease [3, 9]. A key aim of psychiatric genetic research was to provide scientific evidence that severe mental illnesses were inherited, thus strengthening the case for eugenic measures.

Ernst Rüdin (1874–1952) [11] has been credited as the originator of modern psychiatric human genetics on the basis of his research aiming to establish inheritance estimates, that is the risk of a relative developing the same disease as the index patient, which he termed the “empirische Erbprognose” (“empirical heredity prognosis”) [8, 10].

During his formative school and university years, Rüdin’s worldview was heavily influenced by his brother-in-law, the eugenicist Alfred Ploetz (1860–1940), and by Auguste Forel’s (1848–1931) abstinence movement [8] (for detailed biographical information see Table 1).

Tab. 1. Biography of Ernst Rüdin.
Biography of Ernst Rüdin.

Rüdin advocated the goals of eugenics early in his career and called, in numerous publications and reviews, for prohibition of marriage and sterilisation of “inferior persons” such as mentally ill and handicapped persons, criminals, alcoholics and prostitutes [15, 1921].

Rüdin formulated the primary goal of his “psychiatric-genealogical” research, namely to create a scientific basis for racial hygiene measures, thereby solving the “social issue” (soziale Frage, social ills of industrialised societies in 19th century Europe [22]). Rüdin, who had worked under Emil Kraepelin (1856–1926) in Heidelberg and Munich, adopted his psychiatric nosology and was influenced by Kraepelin’s belief in a strong hereditary component [8, 15, 23, 24].

Rüdin’s research methodology was based on systematic family studies with large sample sizes, using statistical analyses such as Wilhelm Weinberg’s (1862–1937) age correction, simple sib and proband method [25], to identify Mendelian rules of inheritance, and to generate estimates of genetic risk on this basis [26]. Rüdin applied this methodology for the first time at The German Research Institute of Psychiatry (Deutsche Forschungsanstalt für Psychiatrie, DFA) in Munich in his 1916 study “On the Problem of the Inheritance and Onset of Dementia Praecox”, which was the foundation of his reputation as a psychiatric geneticist [24, 27]. 701 families of patients with “dementia praecox” (a group of endogenous psychoses [4, 23]) were examined in the study. From his results, Rüdin derived the hypothesis of a two-locus recessive model, though he did not obtain conclusive proof of recessive inheritance.

Rüdin’s study “Inheritance of manic-depressive insanity”

At the DFA, Rüdin then worked on his second major inheritance study, on the genetic inheritance of “manic-depressive insanity” (Zur Vererbung des manisch-depressiven Irreseins) [28]. The original manuscript in the Historical Archives of the Max Planck Institute of Psychiatry in Munich is undated; on the basis of the publications cited the compilation can be dated to the period 1922–1925 [8]. It was never published despite being intended for chapter 4 of “Studies on the Inheritance and Origin of Mental Illness”, one of a series of monographs from the publisher Springer-Verlag of Berlin, covering the full domain of neurology and psychiatry [29]. The Rüdin biographer and psychiatrist Matthias Weber described the study as “the most comprehensive and probably most significant of Rüdin’s works” [8].

The manuscript consists of approximately 160 pages of unbound typescript, each chapter paginated separately, with Rüdin’s hand-written corrections, and numerous large-format, hand-written charts [28]. Some chapters are incomplete and untitled and are not considered in this paper. An additional 250 pages of Rüdin’s hand-written notes, unpaginated, unsystematised and partially in shorthand are mostly illegible. The bibliography is hand-written and only partially intelligible.

Rüdin characterised the study as a complement to his 1916 dementia praecox study and used the same methodology [24]. Whilst not excluding a role for environmental factors, he assumed inheritance of a disposition to affective disorders as generally acknowledged but unproven, citing Kraepelin [30]. Rüdin predicted Mendelian dominant inheritance of affective disorders [26]. He intended to prove this on the basis of the segregation pattern in the families of his probands, or determine another mode of Mendelian inheritance. Criteria could then be derived for selection of persons for the eugenic measures he had formulated earlier [20].

The inclusion criteria encompassed all patients admitted as inpatients to the Psychiatric University Clinic of Munich (Psychiatrische Universitätsklinik München) with a diagnosis of “manic-depressive insanity” since 1904. No preference was given to patients with a dense family history; the diagnosis alone was the criterion for inclusion. This type of systematic ascertainment was unusual in psychiatry at a time when spectacular single case studies or densely affected families were the main focus of research [31, 32]. Follow-ups were conducted to evaluate the course of the illness and verify the diagnosis.

Rüdin sought accurate clinical diagnostics for inclusion and exclusion of probands, using Kraepelinian nosology, which was widely recognised though not without controversy [33, 34]. Under the diagnostic rubric of “manic-depressive insanity”, Kraepelin included “periodic and circular insanity”, “simple mania”, “melancholy” and “amentia” [30]. This corresponds approximately to the modern-day categorisation of affective disorders [3538].

For the diagnosis Rüdin depended above all on the clinical symptoms and less on the course of the disease. Kraepelin regarded “manic-depressive insanity” as “curable” and dementia praecox as “incurable”. Rüdin emphasised however that cases of both disorders were documented that did not follow this rule. He called upon a second clinician with no knowledge of the family history to verify the diagnoses [28]. The sample were hospitalised patients, thus biasing to more severe cases [15]. The patients and, whenever possible, family members were interviewed; further sources included medical and administrative files. However, when a medical diagnostic interview could not be arranged for family members, these diagnoses were often based on descriptions of maladjusted or otherwise conspicuous family members, how often this occurred is not recorded. The most important information (age, diagnosis, medical history and family history) was noted on standard cards, as implemented by Kraepelin, and in detailed family trees [24].

Rüdin integrated Weinberg’s statistical methods and Mendelian genetics into a research methodology which sought to predict the passing on of mental illnesses within families: the “empirical heredity prognosis”. His second goal was to prove a Mendelian mode of inheritance via the systematic ascertainment of as many patients with affective disorders as possible. Rüdin recognised the problem that in recessive modes of inheritance, only families in which the disposition was expressed could be counted, while families with heterozygote carriers were lost. In order to be able to apply Mendelian rules to a sample, the ascertained morbidities would also ideally have to correspond to those in the population. Rüdin applied Weinberg’s simple sib and proband method to that end [25]. He stayed in close contact with Weinberg during the evaluation of his results; their correspondence is cited in several places in the manuscript.

The overrepresentation of patients with affective disorders in the sample was corrected by the simple sib method, whereby index cases, referred to as “probands” (Probanden), were excluded from the calculation. Affected siblings were entered into the calculation as “secondary cases” (Sekundärfälle). The proband method was used to correct for multiple ascertainment in families with several probands.

Rüdin also applied two different methods for age correction, allowing for the possibility that a family member who was healthy at interview could become ill later [28, 39]. On the basis of age distribution, Rüdin determined the period of risk for the onset of affective disorders to be between the ages of 14 and 68. The number of “lifetimes at risk” (Bezugsziffer) was then calculated from the sum of siblings, corrected for their age (Table 2).

Tab. 2. Calculation of the morbid risk using the example of category “both parents unaffected” (category I), with the proband method, simple sib method and Weinberg’s abridged age correction.
Calculation of the morbid risk using the example of category “both parents unaffected” (category I), with the proband method, simple sib method and Weinberg’s abridged age correction.
MR = morbid risk, N = number of affected persons, B = lifetimes at risk (“Bezugsziffer”), P1 = number of children aged under 14, P2 = number of persons aged 14–68, P3 = number of persons aged above 68.

Rüdin’s “empirical heredity prognosis” was based on the calculation of a predictive risk of illness, the “morbid risk” (Morbiditätsrisiko), which included the above-mentioned Weinberg methods. The morbid risk was calculated from the number of affected persons in the sample, corrected by the simple sib and proband methods, divided by the number of lifetimes at risk, that were calculated by the age correction method (Table 2).

Calculating the morbid risk, Rüdin assumed full penetrance for the inherited traits in question and excluded a possible influence of external factors or interference with other genes. The thus calculated morbid risk was compared with the proportions expected from a Mendelian crossing in order to prove Mendelian inheritance and thereby the inheritance of affective disorders as such. Rüdin also used morbid risk as a predictive value for any particular person with certain preconditions (e.g. a parent with an affective disorder) to develop an affective disorder at some point in their life, and therefore serve as a kind of “genetic counseling”, or as he called it, an “empirical heredity prognosis” [28].

Rüdin’s use of statistical processes was a groundbreaking approach at the beginning of the 20th century and led to sound results that in part remain valid today [32, 40]. However, while focussing on the methods of Weinberg, who was also chairman of the “Society for Racial Hygiene” and, like Rüdin, a staff member of the “Archive of Racial and Social Biology”, Rüdin ignored some other statistical methods, such as correlational analyses, which were in common use [15].

After excluding unconfirmed diagnoses, the sample comprised 661 probands from 650 families, or “sibships”, comprised of 4351 siblings in total (Fig 1). In 566 families both parents were healthy and in 84 families one parent had an affective disorder (Table 3).

Patients included in the study [<em class=&quot;ref&quot;>28</em>].
Fig. 1. Patients included in the study [28].
The figure was created by the authors on the basis of the data obtained from Rüdin’s manuscript.

Tab. 3. Distribution of affective disorders among the siblings of included families.
Distribution of affective disorders among the siblings of included families.

Rüdin analysed these two groups independently (Table 4). Consideration was given to other aspects such as alcoholism in the parents or mental illness in other relatives, in which case the families’ standard cards were re-sorted according to the question posed, and the proportions recalculated.

Tab. 4. Age distribution in category “both parents unaffected”.
Age distribution in category “both parents unaffected”.
1 The number of patients included in the calculation of morbid risk after applying the Weinberg proband and simple sib method are marked in brackets.

The morbid risk was then calculated for various categories, and Rüdin found an increase of affective disorders in children of parents who had affective disorders. Contrary to the widely held assumption of a high inheritance rate of affective disorders [30), Rüdin calculated a substantially lower proportion with 7.43% affected children of healthy parents and 23.82% affected children of an affected parent. For an overview of Rudin’s study results see Table 5.

Tab. 5. Main problems and results of the study [<em class="ref">28</em>].
Main problems and results of the study [&lt;em class=&quot;ref&quot;&gt;28&lt;/em&gt;].

Weinberg calculated the proportions expected from crossing different genetic strains, which were then compared with the morbid risks determined by Rüdin in order to find as close a match as possible. Because a simple recessive or dominant inheritance had to be excluded, Rüdin, with the aid of Weinberg’s calculations, took more and more complicated modes of Mendelian inheritance into consideration. Instead of looking more closely at other factors such as patients’ living conditions, comorbidity or other external influences, calculations with assumptions of up to 12 interacting alleles were made in order to come as close as possible to the expected proportions. With the assumption of a three-locus model with two recessive and one dominant factor, Rüdin’s proportions ultimately best matched those calculated by Weinberg, which is why he postulated this mode of inheritance as the most probable (Table 6). However, implementation of the “empirical heredity prognosis” was unsuccessful; it was still not possible to use a standardised formula to predict the probability that a particular individual would develop an illness. Hence the way one should conceive the genotype of a certain patient was still far from clear.

Tab. 6. Morbid risk of affective disorders in the offspring of various crosses.
Morbid risk of affective disorders in the offspring of various crosses.
Comparison between empirical values and predicted values for a three-locus model with two recessive and one dominant factor.

Rüdin emphasised the preliminarity of his results and called for further studies with larger sample size and avoidance of assortative mating. In order to better measure the effects of environmental factors, Rüdin initiated further family and twin studies into the inheritance of affective disorders at the GDA [4143].

Reception of Rüdin’s research and the further development of psychiatric genetics

Aubrey Lewis (1900–1975), in 1934, considered Rüdin’s studies the starting point in the field, refuting allegations against psychiatric genetics “that it was bad psychiatry and bad genetics” [44]. Lewis distinguished between Rüdin’s research and demands he made for changes in health policy, sharply criticising the eugenic measures in Germany’s “Law for the Prevention of Hereditarily Diseased Offspring”, albeit anonymously [45, 46]. In German-speaking psychiatry, there were well-known critics of Rüdin’s eugenic demands on society; important psychiatrists like Karl Jaspers (1883–1969), Oswald Bumke (1877–1950) and Eugen Bleuler (1857–1939) argued the mode of inheritance was unproven; external and social factors influenced disease course, and the right to personal self-determination had to be respected [15, 4751] (for further insight into resistance of medical professionals against negative eugenic measures, see [5254]).

Rüdin’s concept of an empirical heredity prognosis served as a methodological model for many subsequent studies at the DFA, known as the Munich School [5560]. European and American scientists, some of whom had been fellows of the Genealogic-Demographic Department (GDA) of the DFA, used Rüdin’s research methodology in psychiatric genetic studies [27, 27, 6065, 6569]. The results of the twin and family studies undertaken at the Munich School remained valid in their methodology and results for decades [31, 42, 7072].

Publication bias

Whilst Rüdin actively published over decades [8], only one article reported the methodology he prized, namely his large-scale study on the inheritance of dementia praecox [24], with which he acquired his reputation as a psychiatric geneticist [15]. It is all the more surprising that the similarly laid out study on “manic-depressive insanity”, which was elaborately prepared and carried out over the course of years was never published [8, 28]. Contributing factors may include Rüdin, concentrating on his political career, paid less attention to the practical implementation of his research plans [15]. This is somewhat contradicted, by the fact that the study and manuscript were essentially completed. There is some evidence that Rüdin doubted his results. He concurred with eugenicist and heredity theorist Ludwig Plate (1862–1937), that diagnostic uncertainty necessitated skeptical application of Mendelian rules [7375]. Most likely is that his demands for negative eugenic measures against patients with affective disorders and their families could not be justified on the grounds of the heredity figures he had calculated.

With the benefit of hindsight, the inheritance figures Rüdin calculated have been confirmed repeatedly [71, 76], and the search for replicable gene variants leading to the onset of affective disorders continues [77]. In a 1924 lecture Rüdin even recognised that environmental factors combined with disposition to illness, trigger onset of disease [78]. Rüdin’s actual results were therefore reasonably sound from today’s perspective, notwithstanding methodological limitations and that his studies were undertaken prior to knowledge of DNA, the double helix, and the intricacies of molecular genetics, epigenetics and endophenotypes [7984].

Selective publication of positive results remains contentious today. The German human geneticist Peter Propping considers it the greatest danger to psychiatric genetics; “a silent coalition exists between an author and an editor: both are interested in publishing positive findings” [40]. He calls for a platform where all relevant results are accessible to the scientific public, to minimise bias in publishing [40]. In contrast to Propping, prominent scientists like Christiane Nüsslein-Volhard who received the Nobel Prize in Physiology or Medicine in 1995 recommend not publishing negative results, because science should increase knowledge, not merely produce more data. In a recent interview she points to methodological errors as a potential reason for negative results [85]. Rüdin too may have been dubious about his results and therefore refrained from publishing the study.

Rüdin had already clearly formulated his research aim before his study began. He unethically promulgated his eugenic ideology based on a selective and at times patently false reading of his results or even ignoring them [40, 86]. For further discussion on publication bias, see [87, 88].

Rüdin’s involvement in National Socialist policy

In 1933, Rüdin chaired the committee for racial hygiene and racial policy at the ministry of the interior of the NS regime and collaborated on the “Law for the Prevention of Hereditarily Diseased Offspring” [8, 17]. For more detailed information about the role that scientists played in bolstering the racial theories of the NS regime see [3]. According to this law, all persons who had been determined to be hereditarily diseased according to medical science were to be compulsorily sterilised [17] (for the origins of the law see [8]). In his commentary on the law’s implementation, Rüdin justified sterilising psychiatric patients based on the results of his study of the inheritance of dementia praecox, extrapolating the allegedly proven inheritance to other psychiatric and neurologic diagnoses [15, 17, 89, 90]. In doing so, Rüdin reinterpreted his results as much more conclusive and reliable than he had in earlier commentaries, but without citing any later studies [24, 74].

As the story of the 1933 sterilisation-law shows, Rüdin’s research results were accepted uncritically as a scientific basis for legislation, strengthening the case for the National Socialists’ health and social policy. Between the law coming into force in 1934, until 1945, between 350,000 and 400,000 persons were sterilised [9193]. The DFA, founded by Kraepelin and later led by Rüdin, was among the Institutes that issued registration forms required for sterilisation of patients [13]. The number of sterilisations only decreased when, in 1940 and 1941, the Nazis progressed to killing mentally ill and handicapped patients, in “Aktion T4”, under the euphemism “euthanasia” [94] (for the history of eugenics and euthanasia, see also [9597]). Rüdin became aware of this secret operation at the end of 1939 at the latest, but was not directly involved in its preparation or execution [8]. However, his backing may have influenced important decisions at the highest political levels in favour of killing patients [98, 99]. Rüdin supported research projects which included killing designated patients for post mortem material [100, 101]. Also the meticulously recorded registration of patients in Rüdin’s studies later facilitated locating the victims for forced sterilisation and “Aktion T4” [98, 102]. Because his scientific interests were so consistent with Nazi ideology, the DFA was supported by the various centers of power in the National Socialist state [96, 103]. Rüdin did not consider his associations with these ideologies to compromise the scientific quality of his empirical studies [16]. In celebration of the tenth anniversary of the National Socialist state, Rüdin composed a laudation in praise of Adolf Hitler’s services to racial hygiene [104]. In a memorandum he referred to “euthanasia” as a component of “therapeutic reform” [10, 105].

Contemporary views of Rüdin’s work diverge widely, and are subject to ongoing controversy [13, 90, 99, 106]. Some would strip him entirely of his rank as a scientist [15]; others credit him with the establishment of modern psychiatric human genetics through the development of the “empirical heredity prognosis” [8, 31, 40]. Appeals to discontinue citing Rüdin’s scientific work have been put forward [107]. Certainly any scientific analysis of Rüdin’s works should provide information about his political role [108]. His legacy is deeply troubling but highly illustrative of the nexus between science, ideologies, ethics and humanity.


1. Schulze TG, Fangerau H, Propping P. From degeneration to genetic susceptibility, from eugenics to genethics, from Bezugsziffer to LOD score: the history of psychiatric genetics. Int Rev Psychiatry 2004; 16:246–259. 16194759

2. Shorter E. A history of psychiatry: From the era of the asylum to the age of Prozac. 1st ed. New York: Wiley; 1997.

3. Schmuhl H. Rassenhygiene, Nationalsozialismus, Euthanasie: Von der Verhütung zur Vernichtung “lebensunwerten Lebens”. 2nd ed. Göttingen: Vandenhoeck & Ruprecht; 1992.

4. Morel BA. Traité des dégénérescences physiques, intellectuelles et morales de l´espèce humaine et des causes qui produisent ces variétés maladives. 1st ed. Paris: J.B. Baillière; 1857.

5. Krauss R. Ueber die Vererbung von Geisteskrankheiten. Allg Z Psychiatr 1903; 60:224–231.

6. Stransky E. Das manisch-depressive Irresein. Handbuch der Psychiatrie. 1st ed. Leipzig: Deuticke; 1911.

7. Mott FW. The inborn factors of nervous and mental disease. Brain 1911; 34:73–101.

8. Weber MM. Ernst Rüdin: Eine kritische Biographie. 1st ed. Berlin: Springer; 1993.

9. Wecker R, Braunschweig S, Imboden G, Küchenhoff B, Ritter HJ, editors. What is National Socialist about Eugenics? International Debates on the History of Eugenics in the 20th Century. 1st ed. Wien: Böhlau; 2009.

10. Weber MM. Ernst Rüdin, 1874–1952: A German psychiatrist and geneticist. Am J Med Genet A 1996; 67:323–331.

11. Thums K. Herrn Professor Dr. Ernst Rüdin zum 70. Geburtstag: Von Freunden und Schülern gewidmet. Arch Rassen Gesellschaftsbiol 1944; 37:160–162.

12. Rüdin E. Über die klinischen Formen der Gefängnispsychosen [dissertation]. Zürich: Universität Zürich; 1901.

13. Weber MM. Psychiatric research and science policy in Germany. The history of the Deutsche Forschungsanstalt für Psychiatrie (German Institute for Psychiatric Research) in Munich from 1917 to 1945. Hist Psychiatry 2000; 11:235–258. 11640227

14. Schulz B. Ernst Rüdin. Arch Psychiatr Neurol 1953; 190:187–195.

15. Peters U. Ernst Rüdin—ein Schweizer Psychiater als “Führer” der Nazipsychiatrie—die “Endlösung” als Ziel. Fortschr Neurol Psychiatr 1996; 64:327–343. 8991870

16. Roelcke V. Ernst Rüdin—renommierter Wissenschaftler, radikaler Rassenhygieniker. Nervenarzt 2012; 83:303–310. doi: 10.1007/s00115-011-3391-7 22314709

17. Gütt A, Rüdin E, Ruttke F, Lexer E, Eymer H. Gesetz zur Verhütung erbkranken Nachwuchses vom 14. Juli nebst Ausführungsverordnungen. 1st ed. München: Lehmanns; 1934.

18. Zur Ausbürgerung von Ernst Rüdin. Basler Nachrichten 1945 May 16.

19. Rüdin E. Der Alkohol im Lebensprozeß der Rasse. Politisch-anthropologische Revue 1903; 2:553–566.

20. Rüdin E. Zahlreiche Referate. Arch Rassen Gesellschaftsbiol 1905; 2:295–296.

21. Rüdin E. Psychiatrische Indikation zur Sterilisierung. Das kommende Geschlecht 1929; 5:1–19.

22. Landes DS. The unbound Prometheus: technological change and industrial development in Western Europe from 1750 to the present. 2nd ed. London: Cambridge University Press; 2003.

23. Kraepelin E. Psychiatrie. 6th ed. Leipzig: Barth; 1899.

24. Rüdin E. Studien über Vererbung und Entstehung geistiger Störungen: I. Zur Vererbung und Neuentstehung der Dementia Praecox [1916]. In: Lewandowsky M, Wilmanns K, editors. Monographien aus dem Gesamtgebiete der Neurologie und Psychiatrie. Berlin: Springer; 1912.

25. Weinberg W. Auslesewirkungen bei biologisch-statistischen Problemen. Arch Rassen Gesellschaftsbiol 1913; 10:417–451, 557–581.

26. Rüdin E. Einige Wege und Ziele der Familienforschung, mit Rücksicht auf die Psychiatrie. Zbl ges Neurol Psychiatr 1911; 7:487–585.

27. Roelcke V. Die Etablierung der psychiatrischen Genetik in Deutschland, Großbritannien und den USA, ca. 1910–1960: Zur untrennbaren Geschichte von Eugenik und Humangenetik. Acta Hist Leopoldina 2007; 48:173–190.

28. Rüdin E. Zur Vererbung des manisch-depressiven Irreseins. In: Rüdin E, editor. Studien über Vererbung und Entstehung geistiger Störungen. Archives of the Max Planck Institute of Psychiatry ca. 1922–1925; GDA 93,I,II; 94,I,II,III.

29. Lewandowsky M, Wilmanns K, editors. Monographien aus dem Gesamtgebiete der Neurologie und Psychiatrie. Berlin: Springer; 1912.

30. Kraepelin E. Psychiatrie. 8th ed. Leipzig: Barth; 1913.

31. Zerbin-Rüdin E, Kendler KS. Ernst Rüdin (1874–1952) and his genealogic-demographic department in Munich (1917–1986): An introduction to their family studies of schizophrenia. Am J Med Genet A 1996; 67:332–337.

32. Kendler KS, Zerbin-Rüdin E. Abstract and review of “Studien über Vererbung und Entstehung geistiger störungen. I. Zur Vererbung und Neuentstehung der Dementia praecox” (Studies on the inheritance and origin of mental illness: I. To the problem of the inheritance and primary origin of dementia praecox.). Am J Med Genet B 1996; 67:338–342.

33. Assion H, Vollmoeller W, editors. Handbuch Bipolare Störungen. Stuttgart: Kohlhammer; 2006.

34. Weber MM. Lebensstil und ätiologisches Konzept: Rassenhygienische Tendenzen bei Emil Kraepelin. In: Brüne M, Payk TR, editors. Sozialdarwinismus, Genetik und Euthanasie: Menschenbilder in der Psychiatrie. Stuttgart: Wissenschaftliche Verlagsgesellschaft mbH; 2004.

35. Zivanovic O, Nedic A. Kraepelin’s concept of manic-depressive insanity: One hundred years later. J Affect Disord 2012; 137:15–24. doi: 10.1016/j.jad.2011.03.032 21497402

36. Marneros A, Angst J, editors. Bipolar disorders: 100 years after manic-depressive insanity. Boston: Kluwer Academic Publishers; 2000.

37. Perris C. A study of bipolar (manic-depressive) and unipolar recurrent depressive psychoses. 1st ed. Copenhagen: Munksgaard; 1966.

38. Angst J. Zur Ätiologie und Nosologie endogener depressiver Psychosen: Eine genetische, soziologische und klinische Studie. 1st ed. Berlin: Springer; 1966.

39. Weinberg W. “Auslesewirkungen der Sterblichkeit” und “Zur Korrektur des Einflusses der Lebensdauer und Todesauslese auf die Ergebnisse bestimmter Kreuzungen”. Arch Rassen Gesellschaftsbiol 1915; 11:425–434.

40. Propping P. The biography of psychiatric genetics: From early achievements to historical burden, from an anxious society to critical geneticists. Am J Med Genet B 2005; 136:2–7.

41. Kahn E. Schizoid und Schizophrenie im Erbgang: Beitrag zu den erblichen Beziehungen der Schizophrenie und des Schizoids mit besonderer Berücksichtigung der Nachkommenschaft schizophrener Ehepaare. In: Lewandowsky M, Wilmanns K, editors. Monographien aus dem Gesamtgebiete der Neurologie und Psychiatrie. Berlin: Springer; 1912.

42. Luxenburger H. Vorläufiger Bericht über psychiatrische Serienuntersuchungen an Zwillingen. Zbl ges Neurol Psychiatr 1928; 116:297–326.

43. Slater E. Zur Erbpathologie des manisch-depressiven Irreseins. Die Eltern und Kinder von Manisch-Depressiven. Zbl ges Neurol Psychiatr 1938; 163:1–47.

44. Lewis A. Inheritance of Mental Disorders. In: Blacker CP, editor. The Chances of Morbid Inheritance. London: Lewis; 1934. pp. 86–133.

45. Anonymus. Eugenics in Germany. Lancet 1933; 222:297–298.

46. Roelcke V. Programm und Praxis der psychiatrischen Genetik an der Deutschen Forschungsanstalt für Psychiatrie unter Ernst Rüdin: Zum Verhältnis von Wissenschaft, Politik und Rasse-Begriff vor und nach 1933. In: Schmuhl H, editor. Rassenforschung an Kaiser-Wilhelm-Instituten vor und nach 1933. Göttingen: Wallstein; 2003. pp. 38–68.

47. Bumke O. Über nervöse Entartung. In: Lewandowsky M, Wilmanns K, editors. Monographien aus dem Gesamtgebiete der Neurologie und Psychiatrie. Berlin: Springer; 1912.

48. Bleuler E. Mendelismus bei Psychosen, speziell bei der Schizophrenie. Schweiz Arch Neurol Psychiatr 1917; 1:19–40.

49. Jaspers K. Allgemeine Psychopathologie. 2nd ed. Berlin: Springer; 1920.

50. Jaspers K. Allgemeine Psychopathologie. 4th ed. Berlin: Springer; 1946.

51. Steinberg H. Oswald Bumke in Leipzig: Jenseits von Kraepelin, Freud und Rüdin’scher Entartungslehre. Nervenarzt 2008; 79:348–356. 17985109

52. Beyer C. Gottfried Ewald und die “Aktion T4” in Göttingen. Nervenarzt 2013; 84:1049–1055. doi: 10.1007/s00115-012-3652-0 23893259

53. Schmuhl H. Walter Creutz und die “Euthanasie” in der Rheinprovinz. Nervenarzt 2013; 84:1069–1074. doi: 10.1007/s00115-013-3777-9 23995339

54. Roelcke V. Hans Roemer (1878–1947). Nervenarzt 2013; 84:1064–1068. doi: 10.1007/s00115-012-3650-2 23995338

55. Luxenburger H. Zur Methodik der empirischen Erbprognose in der Psychiatrie. Zbl ges Neurol Psychiatr 1928; 117:543–552.

56. Röll A, Entres JL. Zum Problem der Erbprognosebestimmung. Die Erkrankungsaussichten der Neffen und Nichten von Manisch-Depressiven. Zbl ges Neurol Psychiatr 1936; 156:170–202.

57. Luxenburger H. Fortschritte im schizophrenen und zyklothymen Erbkreis. Fortschr Erbpathol Rassenhyg 1937; 1:49–77.

58. Banse J. Zum Problem der Erbprognosebestimmung: Die Erkrankungsaussichten der Vettern und Basen von Manisch-Depressiven. Zbl ges Neurol Psychiatr 1929; 119:576–612.

59. Schulz B. Übersicht über auslesefreie Untersuchungen in der Verwandtschaft Manisch-Depressiver. Z Psych Hyg 1937; 10:39–60.

60. Kallmann F. Heredity, reproduction, and eugenic procedure in the field of schizophrenia. Eugen News 1938; 13:105–113.

61. Boven W. Similarité et Mendélisme dans l´Hérédité de la Démence précoce et de la Folie maniaque-dépressive [dissertation]. Lausanne: Université Lausanne; 1915.

62. Wimmer A. Sur la transmission héréditaire des maladies mentales. L´encéphale 1922; 17:129–150.

63. Rosanoff AJ, Handy LM, Rosanoff Plesset I. The etiology of manic-depressive syndromes with special reference to their occurence in twins. Am J Psychiatry 1935; 91:725–762.

64. Strömgren E. Beiträge zur psychiatrischen Erblehre: Auf Grund von Untersuchungen an einer Inselbevölkerung. Kopenhagen: Munksgaard; 1938.

65. Slater E, Cowie V. The Genetics of Mental Disorders. London: Oxford University Press; 1971.

66. Cottebrune A. Franz Josef Kallmann (1897–1965) und der Transfer psychiatrisch-genetischer Wissenschaftskonzepte vom NS-Deutschland in die USA. Medizinhist J 2009; 44:296–324. 20108703

67. Kallmann F. Heredity in Health and Mental Disorder. Principles of Psychiatric Genetics in the Light of Comparative Twin Studies. 1st ed. New York: Norton; 1953.

68. Gottesman I. Eliot Slater (1904–1983)—An Appreciation. Behav Genet 1984; 14(2):107–110. 6372783

69. Slater E. The inheritance of manic-depressive insanity. Proc R Soc Med 1936;:981–990. 19990758

70. Propping P. Psychiatrische Genetik: Befunde und Konzepte. 1st ed. Berlin: Springer; 1989.

71. Lipp O, Souery D, Mendlewicz J. Populationsgenetik. In: Helmchen H, Henn F, Lauter H, Sartorius N, editors. Psychiatrie der Gegenwart. Heidelberg: Springer; 1998. pp. 79–108.

72. Luxenburger H. Schizophrenie und Manisch-Depressives Irresein. Fortschr Erbpathol Rassenhyg 1940; 4:240–259.

73. Plate L. Vererbungslehre mit besonderer Berücksichtigung des Menschen für Studierende, Ärzte und Züchter. 1st ed. Leipzig: Engelmann; 1913.

74. Rüdin E. Erbbiologisch-psychiatrische Streitfragen. Zbl ges Neurol Psychiatr 1927; 108:274–297.

75. Rüdin E. Über Vererbung geistiger Störungen. Zbl ges Neurol Psychiatr 1923; 81:459–496.

76. Maier W. Genetik der Depression: Gegenwärtiger Erkenntnisstand und Perspektiven. Bundesgesundheitsblatt—Gesundheitsforschung—Gesundheitsschutz 2004; 47:487–492. 15205762

77. Joseph J. The missing gene: Psychiatry, heredity, and the fruitless search for genes. 1st ed. New York: Algora Publishing; 2006.

78. Rüdin E. Erblichkeit und Psychiatrie. Zbl ges Neurol Psychiatr 1924; 93:502–527.

79. Avery OT, MacLeod CM, McCarty M. Studies on the chemical nature of the substance inducing transformation of pneumococcal types. J Exp Med 1944; 79:137–158. 19871359

80. Watson JD, Crick FHC. Molecular Structure of Nucleic Acids: A Structure for Deoxyribose Nucleic Acid. Nature 1953; 171(4356):737–738. 13054692

81. Kato T. Whole genome/exome sequencing in mood and psychotic disorders. Psychiatry Clin Neurosci 2015; 69:65–76. doi: 10.1111/pcn.12247 25319632

82. Lin E, Tsai S. Genome-wide microarray analysis of gene expression profiling in major depression and antidepressant therapy. Prog Neuropsychopharmacol Biol Psychiatry. Epub 2015 Feb 20. doi: 10.1016/j.pnpbp.2015.02.008

83. Januar V, Saffery R, Ryan J. Epigenetics and depressive disorders: a review of current progress and future directions. Int J Epidemiol 2015. Epub 2015 Feb 24. pii: dyu273. 25716985.

84. Glahn DC, Knowles EEM, McKay DR, Sprooten E, Raventos H, Blangero J et al. Arguments for the sake of endophenotypes: examining common misconceptions about the use of endophenotypes in psychiatric genetics. Am J Med Genet B Neuropsychiatr Genet 2014; 165:122–130.

85. Schurr E. Nobelpreisträgerin Nüsslein-Volhard: “Man muss einfach ausprobieren”. Ein Interview von Eva-Maria Schurr; Spiegel-online [internet]. 2015 Mar 15 [cited 2015 Jun 25]. Available from:

86. Cohen M Jr.. Overview of German, Nazi, and Holocaust medicine. Am J Med Genet A 2010; 152:687–707.

87. Thornton A, Lee P. Publication bias in meta-analysis: its causes and consequences. J Clin Epidemiol 2000; 53:207–216. 10729693

88. Cleophas RC, Cleophas TJ. Is selective reporting of clinical research unethical as well as unscientific? Int J Clin Pharmacol Ther 1999; 37:1–7. 10027477

89. Gottesman I, Bertelsen A. Legacy of German psychiatric genetics: Hindsight is always 20/20 (editorial). Am J Med Genet A 1996; 67:317–22.

90. Roelcke V. Die Etablierung der psychiatrischen Genetik, ca. 1900–1960: Wechselbeziehungen zwischen Psychiatrie, Eugenik und Humangenetik. In: Wolters C, Beyer C, Lohff B, editors. Abweichung und Normalität: Psychiatrie in Deutschland vom Kaiserreich bis zur Deutschen Einheit. Bielefeld: Transcript; 2013. pp. 111–135.

91. Nowak K. Sterilisation und Krankenmord 1934–1945: Von der Verhütung zur Vernichtung “ebensunwerten Lebens” im NS-Staat. In: Propping P, Schott H, editors. Wissenschaft auf Irrwegen: Biologismus-Rassenhygiene-Eugenik. Berlin: Bouvier; 1992. pp. 85–99.

92. Weingart P, Kroll J, Bayertz K. Rasse, Blut und Gene: Geschichte der Eugenik und Rassenhygiene in Deutschland. 1st ed. Frankfurt/Main: Suhrkamp; 2006.

93. Steger F, Schmer B, Strube W, Becker T. Zwangssterilisationen nach dem Gesetz zur Verhütung erbkranken Nachwuchses. Nervenarzt 2012; 83:366–373.

94. Pauleikhoff B. Ideologie und Mord: Euthanasie bei “lebensunwerten” Menschen. 1st ed. Hürtgenwald: Pressler; 1986.

95. Lifton RJ. The Nazi Doctors. Medical Killing and the Psychology of Genocide. 1st ed. New York: Basic Books; 1986.

96. Müller-Hill B. Murderous science: Elimination by scientific selection of Jews, Gypsies, and others, Germany 1933–1945. 1st ed. Oxford: Oxford University Press; 1988.

97. Burleigh M. Death and deliverance: “Euthanasia” in Germany c. 1900–1945. 1st ed. Cambridge: Cambridge University Press; 1995.

98. Gejman P. Ernst Rüdin and Nazi euthanasia: Another Stain on His Career. Am J Med Genet A 1997; 74:455–456.

99. Joseph J, Wetzel N. Ernst Rüdin: Hitler’s Racial Hygiene Mastermind. J Hist Biol 2013; 46:1–30. doi: 10.1007/s10739-012-9344-6 23180223

100. Roelcke V, Hohendorf G, Rotzoll M. Erbpsychologische Forschung im Kontext der “Euthanasie”: Neue Dokumente und Aspekte zu Carl Schneider, Julius Deussen und Ernst Rüdin. Fortschr Neurol Psychiatr 1998; 66:331–336. 9697008

101. Weiss S. The Nazi Symbiosis: Human Genetics and Politics in the Third Reich. 1st ed. Chicago: University of Chicago Press; 2010.

102. Baron M. Psychiatric genetics and prejudice: can the science be separated from the scientist? Mol Psychiatry 1998; 3:96–100. 9577829

103. Roelcke V. Wissenschaften zwischen Innovation und Entgrenzung: Biomedizinische Forschung an den Kaiser-Wilhelm-Instituten, 1911–1945. In: Brüne M, Payk TR, editors. Sozialdarwinismus, Genetik und Euthanasie: Menschenbilder in der Psychiatrie. Stuttgart: Wissenschaftliche Verlagsgesellschaft mbH; 2004. pp. 92–109.

104. Rüdin E. Zehn Jahre nationalsozialistischer Staat. Arch Rassen Gesellschaftsbiol 1942; 36:321.

105. Rüdin E, Crinis M de, Schneider C, Nitsche P, Heinze H. Gedanken und Anregungen betr. die künftige Entwicklung der Psychiatrie. National Archives II, Wash. D.C. 1943; BAK, 96 I/9, NAW, T1021, Roll 12, no.126420.

106. Roelcke V. Funding the scientific foundations of race policies: Ernst Rüdin and the impact of career resources on psychiatric genetics ca. 1910–1945. In: Eckart W, editor. Man, Medicine and the State: The Human Body as an Object of Government Sponsored Medical Research in the 20th Century. Stuttgart: Steiner; 2006. pp. 73–87.

107. Lerer B, Segman RH. Correspondence regarding German psychiatric genetics and Ernst Rüdin. Am J Med Genet A 1997; 74:459–460.

108. Gershon ES. Ernst Rüdin, a Nazi psychiatrist and geneticist. Am J Med Genet A 1997; 74:457–458.

Genetika Reprodukční medicína

Článek vyšel v časopise

PLOS Genetics

2015 Číslo 11

Nejčtenější v tomto čísle

Zvyšte si kvalifikaci online z pohodlí domova

Betablokátory a Ca antagonisté z jiného úhlu
nový kurz
Autoři: prof. MUDr. Michal Vrablík, Ph.D., MUDr. Petr Janský

Chronické žilní onemocnění a možnosti konzervativní léčby

Průvodce pomocnými prostředky při léčbě nemocí parodontu
Autoři: MUDr. Ladislav Korábek, CSc., MBA

Jak proměnil léčbu srdečního selhání nástup gliflozinů
Autoři: MUDr. Kristýna Kyšperská, MUDr. Jan Beneš

Autoři: doc. MUDr. Alena Šmahelová, Ph.D.

Všechny kurzy
Zapomenuté heslo

Nemáte účet?  Registrujte se

Zapomenuté heslo

Zadejte e-mailovou adresu, se kterou jste vytvářel(a) účet, budou Vám na ni zaslány informace k nastavení nového hesla.


Nemáte účet?  Registrujte se