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PHYSIOLOGICAL ONTOGENY : A. CHICKEN EMBRYOS. IV. THE NEGATIVE ACCELERATION OF GROWTH WITH AGE AS DEMONSTRATED BY TISSUE CULTURES.
1. Observations on tissue cultures of heart muscle from chicken embryos indicate that in general the growth rate of the individual cells decreases with age. The negative acceleration of growth is greatest at the beginning of life as in the intact embryo. 2. The latent period before growth commences...
Autores principales: | , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
The Rockefeller University Press
1925
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2131016/ https://www.ncbi.nlm.nih.gov/pubmed/19869051 |
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author | Cohn, Alfred E. Murray, Henry A. |
author_facet | Cohn, Alfred E. Murray, Henry A. |
author_sort | Cohn, Alfred E. |
collection | PubMed |
description | 1. Observations on tissue cultures of heart muscle from chicken embryos indicate that in general the growth rate of the individual cells decreases with age. The negative acceleration of growth is greatest at the beginning of life as in the intact embryo. 2. The latent period before growth commences increases with the age of the implanted tissue, but in a different fashion. The acceleration of the latent period is greatest near the end of the incubation period, thus demonstrating that the factors determining the initiation of growth and those determining the extent of growth are not similar. |
format | Text |
id | pubmed-2131016 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 1925 |
publisher | The Rockefeller University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-21310162008-04-18 PHYSIOLOGICAL ONTOGENY : A. CHICKEN EMBRYOS. IV. THE NEGATIVE ACCELERATION OF GROWTH WITH AGE AS DEMONSTRATED BY TISSUE CULTURES. Cohn, Alfred E. Murray, Henry A. J Exp Med Article 1. Observations on tissue cultures of heart muscle from chicken embryos indicate that in general the growth rate of the individual cells decreases with age. The negative acceleration of growth is greatest at the beginning of life as in the intact embryo. 2. The latent period before growth commences increases with the age of the implanted tissue, but in a different fashion. The acceleration of the latent period is greatest near the end of the incubation period, thus demonstrating that the factors determining the initiation of growth and those determining the extent of growth are not similar. The Rockefeller University Press 1925-08-31 /pmc/articles/PMC2131016/ /pubmed/19869051 Text en Copyright © Copyright, 1925, 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 Cohn, Alfred E. Murray, Henry A. PHYSIOLOGICAL ONTOGENY : A. CHICKEN EMBRYOS. IV. THE NEGATIVE ACCELERATION OF GROWTH WITH AGE AS DEMONSTRATED BY TISSUE CULTURES. |
title | PHYSIOLOGICAL ONTOGENY : A. CHICKEN EMBRYOS. IV. THE NEGATIVE ACCELERATION OF GROWTH WITH AGE AS DEMONSTRATED BY TISSUE CULTURES. |
title_full | PHYSIOLOGICAL ONTOGENY : A. CHICKEN EMBRYOS. IV. THE NEGATIVE ACCELERATION OF GROWTH WITH AGE AS DEMONSTRATED BY TISSUE CULTURES. |
title_fullStr | PHYSIOLOGICAL ONTOGENY : A. CHICKEN EMBRYOS. IV. THE NEGATIVE ACCELERATION OF GROWTH WITH AGE AS DEMONSTRATED BY TISSUE CULTURES. |
title_full_unstemmed | PHYSIOLOGICAL ONTOGENY : A. CHICKEN EMBRYOS. IV. THE NEGATIVE ACCELERATION OF GROWTH WITH AGE AS DEMONSTRATED BY TISSUE CULTURES. |
title_short | PHYSIOLOGICAL ONTOGENY : A. CHICKEN EMBRYOS. IV. THE NEGATIVE ACCELERATION OF GROWTH WITH AGE AS DEMONSTRATED BY TISSUE CULTURES. |
title_sort | physiological ontogeny : a. chicken embryos. iv. the negative acceleration of growth with age as demonstrated by tissue cultures. |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2131016/ https://www.ncbi.nlm.nih.gov/pubmed/19869051 |
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