High sputum total adiponectin is associated with low odds for asthma.

Paolo Montuschi, Akshay Sood, Jeanclare Seagrave, Guy Herbert, Michelle Harkins, Yasir Alam, Annalisa Chiavaroli, Rugia Shohreh, Matthew Campen, Molly Harmon, Clifford Qualls, Marianne Berwick, Mark Schuyler

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9 Citazioni (Scopus)

Abstract

Abstract Objective: Adipose tissue produces adiponectin, an anti-inflammatory protein. High systemic total adiponectin is associated with a low risk for incident asthma but the association with lung adiponectin is not known. Our objective was to evaluate the association between sputum total adiponectin and asthma. Methods: This case-control study included 44 cases with objectively-confirmed asthma and an equal number of body mass index (BMI) and sex-matched controls. Serum and sputum adiponectin were estimated by ELISA and Western Blot technique, respectively. While Fisher's exact test, t-test and Spearman's correlations were used for univariate analyses, Spearman and regression analyses were performed for multivariable analyses. Results: While high-molecular-weight adiponectin was the dominant isoform in serum, medium-molecular-weight isoform was dominant in sputum. Sputum total adiponectin was not correlated with serum adiponectin or BMI. Sputum total adiponectin was lower among asthmatics than controls (p = 0.03), although individual sputum isoforms were not similarly associated. High sputum total adiponectin was associated with lower odds for asthma (OR 0.33, 95% C.I. 0.12, 0.91), even after adjustment for systemic adiposity measures including serum adiponectin. Conclusions: High sputum total adiponectin predicted lower odds for asthma, even after adjustment for serum adiponectin. Although not studied, it is possible that pharmacological modulation of sputum adiponectin may suggest new ways to prevent and/or treat asthma.
Lingua originaleEnglish
pagine (da-a)N/A-N/A
RivistaTHE JOURNAL OF ASTHMA
DOI
Stato di pubblicazionePubblicato - 2014

Keywords

  • adiponectin
  • adiponectina
  • asma
  • asthma
  • espettorato indotto
  • induced sputum

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