Endocrine
1563 CE — Europe; Bartolomeo Eustachi's anatomical description of the adrenal (suprarenal) glands; clinical disease described by Thomas Addison in 1855
Addison's disease was among the first conditions to be definitively linked to the destruction of a specific glandular structure, establishing in the mid-nineteenth century a new model for understanding how organ failure could produce systemic illness. The condition drew its name from the London physician Thomas Addison, whose meticulous clinical and post-mortem observations connected a distinctive constellation of findings to disease of the adrenal glands at a time when those glands' functions were entirely unknown. The subsequent history of the condition became inseparable from the broader scientific effort to understand the endocrine system and the hormones the adrenal cortex produced.
Historical Narrative
The adrenal glands, small structures sitting atop the kidneys, were known to anatomists since the sixteenth century, when Bartolomeo Eustachi described them in 1563 as part of his broader anatomical investigations. For nearly three centuries after their anatomical identification, the adrenal glands remained organs of uncertain purpose. Physicians and anatomists proposed various speculative functions — some thought they served as reservoirs for nervous fluid, others suggested they played a role in fetal development — but no consensus emerged, and clinical medicine had no framework for understanding what happened when these structures were damaged or destroyed.
Thomas Addison, a physician at Guy's Hospital in London, changed this situation dramatically with his 1855 publication 'On the Constitutional and Local Effects of Disease of the Supra-Renal Capsules.' Addison had observed a group of patients who shared a characteristic appearance — a peculiar discoloration of the skin, profound weakness, and gastrointestinal disturbance — and who were found at post-mortem examination to have diseased or destroyed adrenal glands. The most common cause of this destruction in Addison's era was tuberculosis, which was then epidemic in European cities and could affect virtually any organ. Addison's insight was to link the clinical picture in living patients to the pathological findings after death, arguing that the adrenal glands were necessary to life and that their failure produced the distinctive syndrome he described. He was not initially met with universal acceptance; some contemporaries disputed the significance of his findings or questioned whether the adrenal glands were truly essential organs.
Addison's work stimulated considerable research interest in adrenal physiology in the latter half of the nineteenth century. Charles-Édouard Brown-Séquard conducted experimental work in the 1850s demonstrating that removal of the adrenal glands in animals was rapidly fatal, providing experimental support for Addison's clinical observations and helping establish the principle that certain glands were indispensable to survival. This finding became a cornerstone of what would later develop into endocrinology as a distinct medical discipline.
Researchers in the late nineteenth and early twentieth centuries worked to isolate the active substances produced by the adrenal glands. The medulla — the inner portion of the gland — yielded its secret first, with the identification of adrenaline (epinephrine) around 1900 by John Jacob Abel and Jokichi Takamine working independently. The cortex — the outer layer, whose destruction was responsible for Addison's disease — proved far more chemically complex and resisted isolation for decades. Multiple investigators pursued the cortical hormones through the 1920s and 1930s, including Frank Hartman and colleagues who produced crude adrenal cortical extracts that could sustain adrenalectomized animals.
The definitive chemical work on adrenocortical hormones was accomplished in the 1930s and 1940s by a competitive group of researchers including Edward Calvin Kendall at the Mayo Clinic, Tadeus Reichstein in Switzerland, and Philip Showalter Hench, also at the Mayo Clinic. Their isolation and characterization of cortical steroids — work that earned Kendall, Reichstein, and Hench the Nobel Prize in Physiology or Medicine in 1950 — transformed understanding of the adrenal cortex and provided the scientific basis for explaining why its destruction in Addison's disease produced such wide-ranging effects throughout the body. The history of Addison's disease thus served as a thread connecting nineteenth-century bedside observation, experimental physiology, and twentieth-century biochemistry in a single continuous scientific narrative.
Key Historical Figures
Historical narrative only — this page describes how Addison's disease was understood historically. It is not medical advice and does not describe current diagnosis or treatment. Sourced from verified medical history references (NIH, Encyclopaedia Britannica, and standard medical history texts). See our medical disclaimer.