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The DOI matches its Crossref record; 7 of the 7 references it cites were found in a registry or an index.

Age and sex dimorphisms contribute to the severity of bleomycin-induced lung injury and fibrosis

Open access
Redente, Elizabeth F., Jacobsen, Kristen M., Solomon, Joshua J., Lara, Abigail R., Faubel, Sarah, Keith, Rebecca C., Henson, Peter M., Downey, Gregory P., Riches, David W. H.·2011·American Journal of Physiology-Lung Cellular and Molecular Physiology

Abstract

Fibrotic interstitial pneumonias are more prevalent in males of advancing age, although little is known about the underlying mechanisms. To evaluate the contributions of age and sex to the development of pulmonary fibrosis, we intratracheally instilled young (8–12 wk) and aged (52–54 wk) male and female mice with bleomycin and assessed the development and severity of fibrotic lung disease by measurements of lung collagen levels, static compliance, leukocyte infiltration, and stereological quantification of fibrotic areas in histological sections. We also quantified proinflammatory and profibrotic chemokine and cytokine levels in the bronchoalveolar lavage fluid. Aged male mice developed more severe lung disease, indicated by increased mortality, increased collagen deposition, and neutrophilic alveolitis compared with aged female mice or young mice of either sex. Aged male mice also exhibited increased levels of transforming growth factor-β, IL-17A, and CXCL1 in their bronchoalveolar lavage fluid. Young male mice developed a more fibrotic disease after bleomycin instillation compared with female mice, regardless of age. There was no difference in fibrosis between young and aged female mice. Taken together, these findings suggest that the variables of advanced age and male sex contribute to the severity of pulmonary fibrosis in this model. Our findings also emphasize the importance of stratifying experimental groups on the basis of age and sex in experimental and epidemiological studies of this nature.

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Metadata

Authors
Redente, E. F., Jacobsen, K. M., Solomon, J. J., Lara, A. R., Faubel, S., Keith, R. C., Henson, P. M., Downey, G. P., & Riches, D. W. H.
Venue
American Journal of Physiology-Lung Cellular and Molecular Physiology
Published
2011-10
Volume
301
Issue
4
Pages
L510-L518
ISSN
  • 1040-0605 (ISSN-L)
  • 1522-1504
OpenAlex
W1985410214
Cited by
215
References
7
FWCI
4.70
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Age and sex dimorphisms contribute to the severity of bleomycin-induced lung injury and fibrosis. https://app.cochat.ai/papers/10.1152/ajplung.00122.2011
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Redente, E. F., Jacobsen, K. M., Solomon, J. J., Lara, A. R., Faubel, S., Keith, R. C., Henson, P. M., Downey, G. P., & Riches, D. W. H. (2011). Age and sex dimorphisms contribute to the severity of bleomycin-induced lung injury and fibrosis. American Journal of Physiology-Lung Cellular and Molecular Physiology. https://doi.org/10.1152/ajplung.00122.2011

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