Arismendi, EbymarRivas, EvaVidal Alaball, JosepBarreiro Portela, EstherTorralba, YolandaBurgos, FelipRodríguez-Roisin, Robert2023-06-272023-06-272015Arismendi E, Rivas E, Vidal J, Barreiro E, Torralba Y, Burgos F, et al. Airway hyperresponsiveness to mannitol in obesity before and after bariatric surgery. Obesity Surgery. 2015 Sep;25(9):1666-71. DOI: 10.1007/s11695-014-1564-80960-8923http://hdl.handle.net/10230/57350The relationship between airway hyperresponsiveness (AHR) and obesity, a low-grade systemic inflammatory condition, remains largely unknown. It is established that AHR to indirect stimuli is associated with active airway inflammation. The objectives were to investigate the rate of AHR to mannitol in obese subjects and its changes 1 year after bariatric surgery (BS). We enrolled 58 candidates to BS severely obese (33 nonsmokers and 25 smokers) without history of asthma and 20 healthy, nonobese participants and related AHR to functional findings and serum and exhaled biomarkers. Before surgery, AHR was observed in 16 (28 %) obese with the provocation doses of mannitol to induce a 15 % fall in FEV1 (PD15) of (geometric mean [95 % CI]) 83 (24–145) mg. Compared to control participants, obese participants had lower spirometric values and higher serum and exhaled biomarkers (p < 0.05 each). After surgery, AHR was abolished (p < 0.01) in all but four obese subjects. Weight loss induced by BS was the key independent factor associated to AHR improvement. AHR to mannitol is highly prevalent in obesity, and it is largely abolished by BS.application/pdfengThis article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.info:eu-repo/semantics/articlehttp://dx.doi.org/10.1007/s11695-014-1564-8Abdominal obesityAirway inflammationBronchial hyperreactivityIndirect bronchoconstrictorSystemic inflammationinfo:eu-repo/semantics/openAccess