Mendelism and medicine: controlling human inheritance in local contexts, 1920-1960

Area of Science:

• History of Science
• Medical Genetics
• Genetics

Background:

• Mendelism's integration into medicine, particularly human inheritance and pathology, gained traction from the 1920s.
• Historians often highlight tensions between Mendelism and medicine due to eugenics, but medical literature shows widespread adoption of Mendel's laws.

Discussion:

• This paper compares the dynamics of medical Mendelism in France and Britain.
• French elite medical professionals readily adopted Mendelism, integrating it with germ theory and hygiene for pathological inheritance, notably in pediatrics and obstetrics.
• British medical Mendelism, influenced by public health debates and social classifications, linked statistics and pedigree analysis, leading to the 'Mendelization' of human pathologies.

Key Insights:

• Local medical cultures significantly influenced the trajectory and acceptance of Mendelism.
• French medical Mendelism, supported by pediatricians and obstetricians, combined genetics with existing theories for a holistic approach to hereditary pathologies.
• British medical Mendelism, driven by public discourse on social groups and mental capacity, fostered statistical and pedigree-based approaches to human genetics.

Outlook:

• The 'Mendelization' of human pathologies in Britain paved the way for medical genetics, focusing on genetic counseling and risk management.
• Continuities exist between pre-war studies of pathological inheritance and the post-war development of medical genetics as a specialty.
• Understanding historical medical cultures is crucial for appreciating the evolution of genetic research and its applications.