endocrinology

Hans Selye and Phenomenon of Stress

Hans Selye and Phenomenon of Stress

On January 26, 1907, pioneering Austrian-Canadian endocrinologist Hans Selye was born. He conducted much important scientific work on the hypothetical non-specific response of an organism to stressors. Although he did not recognize all of the many aspects of glucocorticoids, Selye was aware of their role in the stress response. He is considered the first to demonstrate the existence of biological stress. Hans Selye – Early Years Hans Selye was born in Vienna,…
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Marthe Louise Vogt and the Role of Neurotransmitters in the Human Brain

Marthe Louise Vogt and the Role of Neurotransmitters in the Human Brain

On September 8, 1903, German neuroscientist Marthe Louise Vogt was born. She is considered one of the important neuroscientists of the 20th century and is mainly remembered for her important contributions to the understanding of the role of neurotransmitters in the brain, especially epinephrine. Marthe Louise Vogt – Early Years Marthe Vogt was the older of two daughters of Oskar Vogt and Cécile Vogt, both doctors and brain researchers. In 1903, her…
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Frank Lillie and the Fertilization Process

Frank Lillie and the Fertilization Process

On June 27, 1870, American zoologist and an early pioneer of the study of embryology Frank Rattray Lillie was born. Lillie is known for his discoveries concerning the fertilization of the egg (ovum) and the role of hormones in sex determination. He was instrumental in the development of the field of embryology. He identified the influence of potassium on cell differentiation and elucidated the biological mechanisms behind free-martins. Frank Lillie – Early Years Frank Lillie…
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