Amphipyrenin
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
Amphipyrenin is an archaic morphological term introduced in 1887 to describe the similarity between the substance of the nuclear membrane and true nucleoli. The article notes its protein-like nature, resistance to trypsin and magnesium sulfate, and affinity for acidic dyes.
Encyclopedia entry (1928–1936)
AMPHIPYRENIN (from the Greek amphi - on both sides, around, and pyren - kernel, the substance of the nuclear membrane), a little-used term introduced by Schwarz (1887) to designate the similarity of the substance of the nuclear membrane to the substance of the true nucleolus; the term is morphological rather than chemical. Apparently, the substance designated by this term belongs to proteins; it is sparingly soluble in trypsin and insoluble in magnesium sulfate. Its similarity to the nucleolus substance lies in its ability to stain with acidic dyes.
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Cite this page
“Amphipyrenin.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/amphipyrenin/