Edouard Laguesse

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Gustave-Edouard Laguesse (1861-1927) was a French pathologist and histologist who was a native of Dijon. In 1885 he received his medical doctorate in Paris and subsequently practiced medicine in Lille.

Laguesse is remembered for his patho-histological work with the pancreas. In 1893 he named the small cellular clusters of the pancreas the Islets of Langerhans, in honor of their discoverer Paul Langerhans (1847-1888). However, at the time of their discovery, Langerhans attached no importance to these structures. Laguesse postulated that the Islets of Langerhans produced secretions that played a regulatory role in digestion. Laguesse's research was considered a major step on the path of discovery of a new hormone in the early days of endocrinology.