The invention of hypoxia

Area of Science:

• Physiology and Medicine
• Scientific Terminology Evolution

Background:

• The study of oxygen deprivation in living organisms began in the mid-19th century, initially using terms like 'anoxia' or 'anoxemia'.
• Recent public and scientific interest in hypoxia, driven by the 2019 Nobel Prize and the COVID-19 pandemic, highlights its significance.
• Over 150,000 occurrences of 'hypoxia' were found in PubMed by October 2020, indicating its current research relevance.

Observation:

• The term 'hypoxia' first appeared in scientific literature in 1938 in Holland.
• Related terms 'hypoxybiosis' (1909) and 'hypoxemia' (1923) have earlier origins.
• The term 'hypoxia' was introduced to the United States in 1940, impacting fields like cardiology and anesthesiology.

Findings:

• The term 'hypoxia' (decrease in oxygen) was first documented in 1938.
• Carl Wiggers established the clinical distinction between anoxia (absence of oxygen) and hypoxia in 1941.
• Hypoxia, unlike anoxia, is characterized by variable oxygen levels and reflects the dynamic instability of living organisms (homeodynamics).

Implications:

• Understanding the historical emergence and precise definition of 'hypoxia' is crucial for current biological and medical research.
• The concept of hypoxia is central to understanding homeodynamics, the inherent instability and adaptability of complex living systems.
• Clarifying terminology like hypoxia versus anoxia enhances scientific communication and research accuracy in oxygen-related studies.