Mendelian disorders deserve more attention.

Area of Science:

• Genetics
• Molecular Biology
• Medical Research

Background:

• Inherited monogenic diseases have historically advanced understanding of pathogenic mutations and gene regulation.
• Current research focus has shifted from monogenic disorders to multifactorial common diseases.
• Monogenic diseases, though rare, provide foundational knowledge for genetic research.

Purpose of the Study:

• To emphasize the continued importance of studying monogenic diseases.
• To highlight the potential of Mendelian disorders in understanding complex traits.
• To advocate for a balanced research approach in genetics.

Main Methods:

• Review of historical contributions of monogenic disease research.
• Analysis of the shift in research focus towards common complex diseases.
• Conceptual framework for linking Mendelian genetics to complex trait aetiology.

Main Results:

• Monogenic diseases have been instrumental in developing diagnostic tools and understanding gene function.
• The shift towards common diseases may lead to the neglect of valuable insights from rare genetic disorders.
• Mendelian disorders offer unique models for dissecting genetic underpinnings of biological mechanisms.

Conclusions:

• Continued investigation of monogenic diseases is essential for advancing genetic knowledge.
• Understanding Mendelian disorders can significantly contribute to unraveling the aetiology of complex traits.
• A comprehensive genetic research strategy should integrate insights from both rare and common diseases.