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A MICROSPECTROPHOTOMETRIC STUDY OF RED CELL NUCLEI DURING PYKNOSIS
1. A microspectrophotometric apparatus was used to measure nuclear absorption in fixed and stained human bone marrow smears. 2. The validity of the measurements was established. 3. The total and polymerized desoxyribose nucleic acid (DNA) of erythroblast nuclei were measured in relative units, and a...
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Formato: | Texto |
Lenguaje: | English |
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The Rockefeller University Press
1951
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2136063/ https://www.ncbi.nlm.nih.gov/pubmed/14803636 |
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author | Korson, Roy |
author_facet | Korson, Roy |
author_sort | Korson, Roy |
collection | PubMed |
description | 1. A microspectrophotometric apparatus was used to measure nuclear absorption in fixed and stained human bone marrow smears. 2. The validity of the measurements was established. 3. The total and polymerized desoxyribose nucleic acid (DNA) of erythroblast nuclei were measured in relative units, and a gradual loss of DNA from the red cell nucleus during maturation was noted. 4. The loss in DNA is comparable quantitatively to that occurring during pathological pyknosis in sarcoma cells. 5. The continual loss of nuclear material during erythropoiesis supports the conception that the nucleus disappears by intracellular dissolution, not by extrusion in the intact form. |
format | Text |
id | pubmed-2136063 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1951 |
publisher | The Rockefeller University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-21360632008-04-17 A MICROSPECTROPHOTOMETRIC STUDY OF RED CELL NUCLEI DURING PYKNOSIS Korson, Roy J Exp Med Article 1. A microspectrophotometric apparatus was used to measure nuclear absorption in fixed and stained human bone marrow smears. 2. The validity of the measurements was established. 3. The total and polymerized desoxyribose nucleic acid (DNA) of erythroblast nuclei were measured in relative units, and a gradual loss of DNA from the red cell nucleus during maturation was noted. 4. The loss in DNA is comparable quantitatively to that occurring during pathological pyknosis in sarcoma cells. 5. The continual loss of nuclear material during erythropoiesis supports the conception that the nucleus disappears by intracellular dissolution, not by extrusion in the intact form. The Rockefeller University Press 1951-01-31 /pmc/articles/PMC2136063/ /pubmed/14803636 Text en Copyright © Copyright, 1951, by The Rockefeller Institute for Medical Research New York This article is distributed under the terms of an Attribution–Noncommercial–Share Alike–No Mirror Sites license for the first six months after the publication date (see http://www.rupress.org/terms). After six months it is available under a Creative Commons License (Attribution–Noncommercial–Share Alike 4.0 Unported license, as described at http://creativecommons.org/licenses/by-nc-sa/4.0/). |
spellingShingle | Article Korson, Roy A MICROSPECTROPHOTOMETRIC STUDY OF RED CELL NUCLEI DURING PYKNOSIS |
title | A MICROSPECTROPHOTOMETRIC STUDY OF RED CELL NUCLEI DURING PYKNOSIS |
title_full | A MICROSPECTROPHOTOMETRIC STUDY OF RED CELL NUCLEI DURING PYKNOSIS |
title_fullStr | A MICROSPECTROPHOTOMETRIC STUDY OF RED CELL NUCLEI DURING PYKNOSIS |
title_full_unstemmed | A MICROSPECTROPHOTOMETRIC STUDY OF RED CELL NUCLEI DURING PYKNOSIS |
title_short | A MICROSPECTROPHOTOMETRIC STUDY OF RED CELL NUCLEI DURING PYKNOSIS |
title_sort | microspectrophotometric study of red cell nuclei during pyknosis |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2136063/ https://www.ncbi.nlm.nih.gov/pubmed/14803636 |
work_keys_str_mv | AT korsonroy amicrospectrophotometricstudyofredcellnucleiduringpyknosis AT korsonroy microspectrophotometricstudyofredcellnucleiduringpyknosis |