Morphometric study of the postnatal growth of the parotid gland of the mouse
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1806-83242006000100004 http://hdl.handle.net/11449/68901 |
Resumo: | The growth of the mouse parotid glands during 7 and 35 days of postnatal life was studied by morphometric methods. The mass of the gland, the volume of each morphological compartment, and the cell number in each compartment were evaluated. The data obtained for each evaluated dimension were adjusted by an exponential equation, of the type Y = a.e KX, thus permitting the calculation of their mean duplication time (T D), i.e., an estimation of their growth rate. Analysis of the results showed a marked 1,424% increase in the gland mass during the whole studied period, with T D = 7.10 days. This growth occurred by increases in absolute volume of acini, intercalated ducts, striated ducts, excretory ducts and stroma, with percentual increases of 3,048%, 417%, 2,662%, 2,594% and 367%, respectively, and T Ds of 5.62, 11.71, 5.55, 5.47 and 14.45 days, respectively. Analysis of the cell number growth in each compartment showed increases of 1,904%, 285%, 1,228%, 1,090% and 286%, respectively, and T Ds of 6.62, 20.40, 7.19, 7.26 and 14.51 days, respectively. Based on the present results, we concluded that the growth of the mouse parotid glands from day 7 to day 35 of age occurred by intense cell accumulation, mainly in the acini, striated ducts and excretory ducts, with a growth rate sensibly higher than that of the intercalated ducts and stroma. |
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Morphometric study of the postnatal growth of the parotid gland of the mouseAnimalsGrowth and embryonic developmentHistologyParotid glandRegression analysisanalysis of varianceanimalcell countcell sizecomparative studycytologygrowth, development and agingmalemouseparotid glandregression analysisAnalysis of VarianceCell CountCell SizeMaleMiceParotid GlandRegression AnalysisThe growth of the mouse parotid glands during 7 and 35 days of postnatal life was studied by morphometric methods. The mass of the gland, the volume of each morphological compartment, and the cell number in each compartment were evaluated. The data obtained for each evaluated dimension were adjusted by an exponential equation, of the type Y = a.e KX, thus permitting the calculation of their mean duplication time (T D), i.e., an estimation of their growth rate. Analysis of the results showed a marked 1,424% increase in the gland mass during the whole studied period, with T D = 7.10 days. This growth occurred by increases in absolute volume of acini, intercalated ducts, striated ducts, excretory ducts and stroma, with percentual increases of 3,048%, 417%, 2,662%, 2,594% and 367%, respectively, and T Ds of 5.62, 11.71, 5.55, 5.47 and 14.45 days, respectively. Analysis of the cell number growth in each compartment showed increases of 1,904%, 285%, 1,228%, 1,090% and 286%, respectively, and T Ds of 6.62, 20.40, 7.19, 7.26 and 14.51 days, respectively. Based on the present results, we concluded that the growth of the mouse parotid glands from day 7 to day 35 of age occurred by intense cell accumulation, mainly in the acini, striated ducts and excretory ducts, with a growth rate sensibly higher than that of the intercalated ducts and stroma.Department of Biological Sciences University of São Paulo, São PauloSchool of Dentistry of Araçatuba São Paulo State University, São PauloDepartment of Stomatology University of São Paulo, São PauloLaboratory of Histology Department of Biological Sciences - School of Dentistry of Bauru University of São Paulo, São PauloSchool of Dentistry of Araçatuba São Paulo State University, São PauloUniversidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)de Castro Ribeiro, Tiago TurriSottovia, André Dotto [UNESP]Cestari, Tania MaryTaga, Rumio2014-05-27T11:21:52Z2014-05-27T11:21:52Z2006-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article13-20application/pdfhttp://dx.doi.org/10.1590/S1806-83242006000100004Brazilian Oral Research, v. 20, n. 1, p. 13-20, 2006.1806-83241807-3107http://hdl.handle.net/11449/6890110.1590/S1806-83242006000100004S1806-832420060001000042-s2.0-337447807782-s2.0-33744780778.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Oral Research1.223info:eu-repo/semantics/openAccess2023-11-04T06:08:07Zoai:repositorio.unesp.br:11449/68901Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:52:45.986576Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Morphometric study of the postnatal growth of the parotid gland of the mouse |
title |
Morphometric study of the postnatal growth of the parotid gland of the mouse |
spellingShingle |
Morphometric study of the postnatal growth of the parotid gland of the mouse de Castro Ribeiro, Tiago Turri Animals Growth and embryonic development Histology Parotid gland Regression analysis analysis of variance animal cell count cell size comparative study cytology growth, development and aging male mouse parotid gland regression analysis Analysis of Variance Cell Count Cell Size Male Mice Parotid Gland Regression Analysis |
title_short |
Morphometric study of the postnatal growth of the parotid gland of the mouse |
title_full |
Morphometric study of the postnatal growth of the parotid gland of the mouse |
title_fullStr |
Morphometric study of the postnatal growth of the parotid gland of the mouse |
title_full_unstemmed |
Morphometric study of the postnatal growth of the parotid gland of the mouse |
title_sort |
Morphometric study of the postnatal growth of the parotid gland of the mouse |
author |
de Castro Ribeiro, Tiago Turri |
author_facet |
de Castro Ribeiro, Tiago Turri Sottovia, André Dotto [UNESP] Cestari, Tania Mary Taga, Rumio |
author_role |
author |
author2 |
Sottovia, André Dotto [UNESP] Cestari, Tania Mary Taga, Rumio |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
de Castro Ribeiro, Tiago Turri Sottovia, André Dotto [UNESP] Cestari, Tania Mary Taga, Rumio |
dc.subject.por.fl_str_mv |
Animals Growth and embryonic development Histology Parotid gland Regression analysis analysis of variance animal cell count cell size comparative study cytology growth, development and aging male mouse parotid gland regression analysis Analysis of Variance Cell Count Cell Size Male Mice Parotid Gland Regression Analysis |
topic |
Animals Growth and embryonic development Histology Parotid gland Regression analysis analysis of variance animal cell count cell size comparative study cytology growth, development and aging male mouse parotid gland regression analysis Analysis of Variance Cell Count Cell Size Male Mice Parotid Gland Regression Analysis |
description |
The growth of the mouse parotid glands during 7 and 35 days of postnatal life was studied by morphometric methods. The mass of the gland, the volume of each morphological compartment, and the cell number in each compartment were evaluated. The data obtained for each evaluated dimension were adjusted by an exponential equation, of the type Y = a.e KX, thus permitting the calculation of their mean duplication time (T D), i.e., an estimation of their growth rate. Analysis of the results showed a marked 1,424% increase in the gland mass during the whole studied period, with T D = 7.10 days. This growth occurred by increases in absolute volume of acini, intercalated ducts, striated ducts, excretory ducts and stroma, with percentual increases of 3,048%, 417%, 2,662%, 2,594% and 367%, respectively, and T Ds of 5.62, 11.71, 5.55, 5.47 and 14.45 days, respectively. Analysis of the cell number growth in each compartment showed increases of 1,904%, 285%, 1,228%, 1,090% and 286%, respectively, and T Ds of 6.62, 20.40, 7.19, 7.26 and 14.51 days, respectively. Based on the present results, we concluded that the growth of the mouse parotid glands from day 7 to day 35 of age occurred by intense cell accumulation, mainly in the acini, striated ducts and excretory ducts, with a growth rate sensibly higher than that of the intercalated ducts and stroma. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-06-01 2014-05-27T11:21:52Z 2014-05-27T11:21:52Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/S1806-83242006000100004 Brazilian Oral Research, v. 20, n. 1, p. 13-20, 2006. 1806-8324 1807-3107 http://hdl.handle.net/11449/68901 10.1590/S1806-83242006000100004 S1806-83242006000100004 2-s2.0-33744780778 2-s2.0-33744780778.pdf |
url |
http://dx.doi.org/10.1590/S1806-83242006000100004 http://hdl.handle.net/11449/68901 |
identifier_str_mv |
Brazilian Oral Research, v. 20, n. 1, p. 13-20, 2006. 1806-8324 1807-3107 10.1590/S1806-83242006000100004 S1806-83242006000100004 2-s2.0-33744780778 2-s2.0-33744780778.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Oral Research 1.223 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
13-20 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808128714423140352 |