Title |
Postnatal overnutrition in mice leads to impaired pulmonary mechanics in response to salbutamol
|
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Published in |
The Journal of Physiological Sciences, October 2015
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DOI | 10.1007/s12576-015-0417-0 |
Pubmed ID | |
Authors |
Vanessa P. Teixeira, Daniela A. B. Cervilha, Layla D. M. Cabral, Luiz M. Oliveira, Erika K. Incerpi, Rômulo D. Novaes, Marisa Ionta, Roseli Soncini |
Abstract |
Obesity increases the risk of respiratory disease, which is associated with airway hyperresponsiveness. Although the molecular underpinnings of this phenomenon are not well established, lung remodeling is known as an important factor in this process and could potentially explain compromised lung functions. In the present study, the obesity was induced by postnatal overnutrition in Swiss mice and we investigated the pulmonary mechanics after aerosolization of saline, methacholine, and salbutamol. The lungs were prepared for morphometric analysis. Obese animals showed bronchoconstriction in response to methacholine, as evidenced by airway and tissue resistance, tissue elastance, and hysteresivity. Salbutamol was effective at recovering the response only for airway resistance but not for tissue mechanics. We suggest that this impaired response in obese mice is related to collapsed alveolar, to inflammatory cells, and to elevated deposition collagen fibers in parenchymal tissue. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 14 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Bachelor | 4 | 29% |
Student > Master | 2 | 14% |
Unspecified | 1 | 7% |
Professor | 1 | 7% |
Student > Doctoral Student | 1 | 7% |
Other | 2 | 14% |
Unknown | 3 | 21% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 3 | 21% |
Medicine and Dentistry | 3 | 21% |
Nursing and Health Professions | 1 | 7% |
Unspecified | 1 | 7% |
Earth and Planetary Sciences | 1 | 7% |
Other | 1 | 7% |
Unknown | 4 | 29% |