Clearly such methods are not viable in newborn infants and we believe that the AbMole Diatrizoic acid method described here offers a simple acceptable alternative that could be applied to large scale epidemiological studies. Whilst the nose is an attractive source of AEC, there is active debate as to whether nasal AEC are valid surrogates for bronchial AEC. We previously reported identical epithelial morphology and immunostaining in paired cultures of nasal and bronchial AEC from 30 adults and 5 children. Furthermore, release of several inflammatory mediators from nasal and bronchial AEC was positively correlated. More recently we have replicated these studies in a wholly paediatric population. These findings suggest that the nasal and bronchial airway epithelial cells of newborn infants are likely to be similar. It is plausible that the constant postnatal exposure of nasal epithelial cells in vivo to a higher burden of environmental pollutants and pathogens relative to bronchial AEC leads to a differential up-regulation of inflammatory mediators with increasing age. Opportunities to access the lower airways of neonates for AbMole Gambogic-acid research purposes are exceptionally rare and consequently a study comparing directly nasal and bronchial AEC in the same individuals is highly unlikely to be feasible. We believe that our method of obtaining AEC from neonates is a pragmatic compromise and at the very least neonatal nasal AEC will provide a convenient model to investigate the pathogenesis of allergic rhinitis. We have demonstrated both basal expression and dose dependent upregulation of the neutrophilic chemokine IL-8 in 
nasal AEC cultures with both a pro inflammatory and allergenic stimulus. This observation demonstrates that even in newborn infants, airway epithelial cells have the potential to function as components of the innate immune response and direct adaptive immune responses to pathogens and allergens. In this study IL-8 was used as an easily quantified exemplar cytokine. Further work is required to quantify the secretion of other cytokines, chemokines and growth factors by neonatal nasal AEC stimulated with a range of asthma-relevant cytokines such as IL-4 or IL-13. In summary, we describe a safe, minimally invasive and reliable method of culturing AEC from neonates suitable for functional cell analysis and amenable to population based studies. This methodology offers a unique opportunity to study “naive” AEC and may prove useful in elucidating the early origins of respiratory disease. Meanwhile, atherosclerosis is one of the most common causes of cardiovascular disease, which remains the biggest cause of deaths in the world. Most previous studies have accessed the association between adiponectin concentrations and risk of cardiovascular disease.