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Citation
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HERO ID
688754
Reference Type
Journal Article
Title
Alveoli increase in number but not size from birth to adulthood in rhesus monkeys
Author(s)
Hyde, DM; Blozis, SA; Avdalovic, MV; Putney, LF; Dettorre, R; Quesenberry, NJ; Singh, P; Tyler, NK
Year
2007
Is Peer Reviewed?
Yes
Journal
American Journal of Physiology: Lung Cellular and Molecular Physiology
ISSN:
1040-0605
EISSN:
1522-1504
Volume
293
Issue
3
Page Numbers
L570-579
Language
English
PMID
17586691
DOI
10.1152/ajplung.00467.2006
Web of Science Id
WOS:000249125100011
Relationship(s)
has comment/response
3348320
Developmental alveologenesis: Longer, differential regulation and perhaps more danger
Abstract
Postnatal developmental stages of lung parenchyma in rhesus monkeys is about one-third that of humans. Alveoli in humans are reported to be formed up to 8 yr of age. We used design-based stereological methods to estimate the number of alveoli (N(alv)) in male and female rhesus monkeys over the first 7 yr of life. Twenty-six rhesus monkeys (13 males ranging in age from 4 to 1,920 days and lung volumes from 41.7 to 602 cm(3), 13 females ranging in age from 22 to 2,675 days and lung volumes from 43.5 to 380 cm(3)) were necropsied and lungs fixed, isotropically oriented, fractionated, sampled, embedded, and sectioned for alveolar counting. Parenchymal, alveolar, alveolar duct core air, and interalveolar septal tissue volumes increased rapidly during the first 2 yr with slowed growth from 2 to 7 yr. The rate of change was greater in males than females. N(alv) also showed consistent growth throughout the study, with increases in N(alv) best predicted by increases in lung volume. However, mean alveolar volume showed little relationship with age, lung volume, or body weight but was larger in females and showed a greater size distribution than in males. Alveoli increase in number but not volume throughout postnatal development in rhesus monkeys.
Keywords
stereology; parenchyma; alveolar ducts; postnatal development
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Chapter 4
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Chapter 4
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