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GROWTH OF FIBROBLASTS AND HYDROGEN ION CONCENTRATION OF THE MEDIUM
1. The rate of growth of fibroblasts is markedly modified by slight changes in the hydrogen ion concentration of the medium. The curves expressing the rate of growth in function of the hydrogen ion concentration of the medium are nearly symmetrical on both sides of the maximum. 2. The optimum growth...
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Formato: | Texto |
Lenguaje: | English |
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The Rockefeller University Press
1921
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2128691/ https://www.ncbi.nlm.nih.gov/pubmed/19868570 |
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author | Fischer, Albert |
author_facet | Fischer, Albert |
author_sort | Fischer, Albert |
collection | PubMed |
description | 1. The rate of growth of fibroblasts is markedly modified by slight changes in the hydrogen ion concentration of the medium. The curves expressing the rate of growth in function of the hydrogen ion concentration of the medium are nearly symmetrical on both sides of the maximum. 2. The optimum growth of fibroblasts occurs at pH 7.4 to 7.8. A slight change from this reaction has a remarkable influence on the rate of growth. 3. Fibroblasts show more resistance to higher alkalinity than to higher acidity. They grew for only four to six generations in a medium having a pH of 5.5, and for more than ten generations in one of 8.5. 4. The influence of different hydrogen ion concentrations on fibroblasts was only of a quantitative nature. |
format | Text |
id | pubmed-2128691 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1921 |
publisher | The Rockefeller University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-21286912008-04-18 GROWTH OF FIBROBLASTS AND HYDROGEN ION CONCENTRATION OF THE MEDIUM Fischer, Albert J Exp Med Article 1. The rate of growth of fibroblasts is markedly modified by slight changes in the hydrogen ion concentration of the medium. The curves expressing the rate of growth in function of the hydrogen ion concentration of the medium are nearly symmetrical on both sides of the maximum. 2. The optimum growth of fibroblasts occurs at pH 7.4 to 7.8. A slight change from this reaction has a remarkable influence on the rate of growth. 3. Fibroblasts show more resistance to higher alkalinity than to higher acidity. They grew for only four to six generations in a medium having a pH of 5.5, and for more than ten generations in one of 8.5. 4. The influence of different hydrogen ion concentrations on fibroblasts was only of a quantitative nature. The Rockefeller University Press 1921-10-31 /pmc/articles/PMC2128691/ /pubmed/19868570 Text en Copyright © Copyright, 1921, 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 Fischer, Albert GROWTH OF FIBROBLASTS AND HYDROGEN ION CONCENTRATION OF THE MEDIUM |
title | GROWTH OF FIBROBLASTS AND HYDROGEN ION CONCENTRATION OF THE MEDIUM |
title_full | GROWTH OF FIBROBLASTS AND HYDROGEN ION CONCENTRATION OF THE MEDIUM |
title_fullStr | GROWTH OF FIBROBLASTS AND HYDROGEN ION CONCENTRATION OF THE MEDIUM |
title_full_unstemmed | GROWTH OF FIBROBLASTS AND HYDROGEN ION CONCENTRATION OF THE MEDIUM |
title_short | GROWTH OF FIBROBLASTS AND HYDROGEN ION CONCENTRATION OF THE MEDIUM |
title_sort | growth of fibroblasts and hydrogen ion concentration of the medium |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2128691/ https://www.ncbi.nlm.nih.gov/pubmed/19868570 |
work_keys_str_mv | AT fischeralbert growthoffibroblastsandhydrogenionconcentrationofthemedium |