Dataset Information

Association Between Insomnia and Asthma Burden in the Severe Asthma Research Program (SARP) III.

ABSTRACT:

Background

Sleep difficulties are commonly reported by patients with asthma; however, the prevalence of insomnia and its association with disease burden and well-being is unknown. We aimed to determine the prevalence of insomnia, defined as combined sleep-specific complaints with associated daytime symptoms, among a large sample of adults with asthma, and to compare well-being, asthma control, and asthma-related health care utilization in individuals with asthma and insomnia and those without insomnia.

Methods

Baseline data from adults with physician-confirmed asthma enrolled in the Severe Asthma Research Program III was used for analyses (N = 714). Participants completed the Insomnia Severity Index (ISI), Asthma Control Test, Asthma Quality of Life Questionnaire, and Hospital Anxiety and Depression Scale.

Results

Insomnia (ISI ? 10) was identified in 263 participants (37%). Presence of insomnia was associated with higher levels of depression and anxiety symptoms and poorer quality of life. Those with insomnia had a 2.4-fold increased risk for having not well-controlled asthma and a 1.5-fold increased risk for asthma-related health care utilization in the past year compared with those without insomnia.

Conclusions

Insomnia is highly prevalent in asthma and is associated with adverse outcomes. Further studies are needed to gain a better understanding of the interaction between insomnia and asthma control.

SUBMITTER: Luyster FS

PROVIDER: S-EPMC5310183 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature

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Publications

Association Between Insomnia and Asthma Burden in the Severe Asthma Research Program (SARP) III.

Luyster Faith S FS Strollo Patrick J PJ Holguin Fernando F Castro Mario M Dunican Eleanor M EM Fahy John J Gaston Benjamin B Israel Elliot E Jarjour Nizar N NN Mauger David T DT Moore Wendy C WC Wenzel Sally E SE

Chest 20161006 6

<h4>Background</h4>Sleep difficulties are commonly reported by patients with asthma; however, the prevalence of insomnia and its association with disease burden and well-being is unknown. We aimed to determine the prevalence of insomnia, defined as combined sleep-specific complaints with associated daytime symptoms, among a large sample of adults with asthma, and to compare well-being, asthma control, and asthma-related health care utilization in individuals with asthma and insomnia and those wi ...[more]

PMID: 27720882

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Project description:RationaleSevere asthma (SA) remains poorly understood. Mast cells (MC) are implicated in asthma pathogenesis, but it remains unknown how their phenotype, location, and activation relate to asthma severity.ObjectivesTo compare MC-related markers measured in bronchoscopically obtained samples with clinically relevant parameters between normal subjects and subjects with asthma to clarify their pathobiologic importance.MethodsEndobronchial biopsies, epithelial brushings, and bronchoalveolar lavage were obtained from subjects with asthma and normal subjects from the Severe Asthma Research Program (N = 199). Tryptase, chymase, and carboxypeptidase A (CPA)3 were used to identify total MC (MC(Tot)) and the MC(TC) subset (MCs positive for both tryptase and chymase) using immunostaining and quantitative real-time polymerase chain reaction. Lavage was analyzed for tryptase and prostaglandin D2 (PGD2) by ELISA.Measurements and main resultsSubmucosal MC(Tot) (tryptase-positive by immunostaining) numbers were highest in "mild asthma/no inhaled corticosteroid (ICS) therapy" subjects and decreased with greater asthma severity (P = 0.002). In contrast, MC(TC) (chymase-positive by immunostaining) were the predominant (MC(TC)/MC(Tot) > 50%) MC phenotype in SA (overall P = 0.005). Epithelial MC(Tot) were also highest in mild asthma/no ICS, but were not lower in SA. Instead, they persisted and were predominantly MC(TC). Epithelial CPA3 and tryptase mRNA supported the immunostaining data (overall P = 0.008 and P = 0.02, respectively). Lavage PGD2 was higher in SA than in other steroid-treated groups (overall P = 0.02), whereas tryptase did not differentiate the groups. In statistical models, PGD2 and MC(TC)/MC(Tot) predicted SA.ConclusionsSevere asthma is associated with a predominance of MC(TC) in the airway submucosa and epithelium. Activation of those MC(TC) may contribute to the increases in PGD2 levels. The data suggest an altered and active MC population contributes to SA pathology.

Dataset Information

Association Between Insomnia and Asthma Burden in the Severe Asthma Research Program (SARP) III.

Background

Methods

Results

Conclusions

Publications

Association Between Insomnia and Asthma Burden in the Severe Asthma Research Program (SARP) III.

Similar Datasets

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