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Nasal nitric oxide in relation to asthma characteristics in a longitudinal asthma cohort study.
Krantz, Christina; Janson, Christer; Alving, Kjell; Malinovschi, Andrei.
Afiliación
  • Krantz C; Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden. Electronic address: christina.krantz@kbh.uu.se.
  • Janson C; Department of Medical Sciences, Respiratory Medicine and Allergology, Uppsala University, Uppsala, Sweden. Electronic address: christer.janson@medsci.uu.se.
  • Alving K; Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden. Electronic address: kjell.alving@kbh.uu.se.
  • Malinovschi A; Department of Medical Sciences, Clinical Physiology, Uppsala University, Uppsala, Sweden. Electronic address: andrei.malinovschi@medsci.uu.se.
Nitric Oxide ; 106: 1-8, 2021 01 01.
Article en En | MEDLINE | ID: mdl-33045328
OBJECTIVE: Cross-sectional studies report relations between low nasal nitric oxide (nNO) and poor asthma control and between low nNO and chronic rhinosinusitis (CRS). In our cohort study, we studied if changes in nNO related to changes in asthma control, symptoms of CRS, or asthma or rhinitis medication. METHODS: A total of 196 subjects with predominantly mild to moderate asthma, aged 10-35 years, performed nNO measurements at both baseline and follow-up after a median of 43 (range 23-65) months. Asthma control, CRS symptoms, and medication, were questionnaire-assessed at both timepoints. IgE sensitisation against aeroallergens was quantified at baseline. RESULTS: There was an increase in nNO between baseline and follow-up (764 ± 269 ppb vs. 855 ± 288 ppb, p < 0.001). When adjusted for covariates, a larger increase in nNO was found in subjects sensitised to perennial aeroallergens than those not sensitised (92 (16-167) ppb), as well as in subjects with daily use of inhaled corticosteroids (ICS) at baseline but not at follow-up than those on ICS daily at both timepoints (146 (51-242) ppb). In the same model, subjects using nasal steroids daily at both timepoints had decreased nNO compared with those without such treatment at both timepoints (-185 (-321-(-48)) ppb). No relations between changes in nNO levels and changes in asthma control or symptoms of CRS were found. CONCLUSION: Longitudinal changes in nNO were not related to changes in asthma control, but were related to changes in asthma or rhinitis medication.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Asma / Mucosa Nasal / Óxido Nítrico Tipo de estudio: Etiology_studies / Incidence_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Adolescent / Adult / Child / Female / Humans / Male Idioma: En Revista: Nitric Oxide Asunto de la revista: BIOQUIMICA / QUIMICA Año: 2021 Tipo del documento: Article Pais de publicación: Estados Unidos

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Asma / Mucosa Nasal / Óxido Nítrico Tipo de estudio: Etiology_studies / Incidence_studies / Observational_studies / Prognostic_studies / Risk_factors_studies Límite: Adolescent / Adult / Child / Female / Humans / Male Idioma: En Revista: Nitric Oxide Asunto de la revista: BIOQUIMICA / QUIMICA Año: 2021 Tipo del documento: Article Pais de publicación: Estados Unidos