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- Aad, G, et al.
(författare)
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- 2015
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swepub:Mat__t
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- Li, MY, et al.
(författare)
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Ncf1 Governs Immune Niches in the Lung to Mediate Pulmonary Inflammation in Mice
- 2021
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Ingår i: Frontiers in immunology. - : Frontiers Media SA. - 1664-3224. ; 12, s. 783944-
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Tidskriftsartikel (refereegranskat)abstract
- Neutrophil cytosolic factor 1 (Ncf1) is a major genetic factor associated with autoimmune diseases and has been identified as a key player in autoimmune mediated inflammation. We addressed the role ofNcf1in an antigen-induced pulmonary inflammation model, and found that theNcf1m1jmutation, causing a deficient reactive oxygen species response, alleviated disease. TheNcf1m1jmutation was associated with a reduced inflammatory cell infiltration in airways, but had limited effect on mucus secretion, antibody production and lung fibrosis. The disease remission in theNcf1mutated mice was reversed when functionalNcf1was transgenically expressed in alveolar macrophages, suggesting that the cellular inflammation was depended on functionalNcf1in alveolar macrophages. By determining cytokine and chemokine profiles in lung and serum, we found thatNcf1deficiency allowed an increased expression of Th1 cytokines, including TNF-α, IFN-γ and IL-12. Since also epithelial cytokines were found to be regulated byNcf1, we tested the effect ofNcf1in IL-33 and IL-25 induced lung inflammation models. Mice with theNcf1m1jmutation showed less sensitivity to IL-33, but not IL-25, induced lung inflammation, in a macrophage independent manner. The mice with deficientNcf1showed a reduced eosinophil infiltration and group 2 innate lymphoid cell (ILC2) activation. The production of IFN-γ in CD4+T cells was increased, whereas IL-5 and IL-13 in ILC2 were decreased. Importantly, anti-IFN-γ antibody treatment ofNcf1deficient mice increased eosinophil infiltration and rescued ILC2 activation in the lung. We conclude thatNcf1deficiency enhances Th1 response, deactivates ILC2, and protects against pulmonitis.
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- Mishra, A, et al.
(författare)
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Diminishing benefits of urban living for children and adolescents' growth and development
- 2023
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Ingår i: Nature. - : Springer Science and Business Media LLC. - 1476-4687 .- 0028-0836. ; 615:7954, s. 874-883
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Tidskriftsartikel (refereegranskat)abstract
- Optimal growth and development in childhood and adolescence is crucial for lifelong health and well-being1–6. Here we used data from 2,325 population-based studies, with measurements of height and weight from 71 million participants, to report the height and body-mass index (BMI) of children and adolescents aged 5–19 years on the basis of rural and urban place of residence in 200 countries and territories from 1990 to 2020. In 1990, children and adolescents residing in cities were taller than their rural counterparts in all but a few high-income countries. By 2020, the urban height advantage became smaller in most countries, and in many high-income western countries it reversed into a small urban-based disadvantage. The exception was for boys in most countries in sub-Saharan Africa and in some countries in Oceania, south Asia and the region of central Asia, Middle East and north Africa. In these countries, successive cohorts of boys from rural places either did not gain height or possibly became shorter, and hence fell further behind their urban peers. The difference between the age-standardized mean BMI of children in urban and rural areas was <1.1 kg m–2 in the vast majority of countries. Within this small range, BMI increased slightly more in cities than in rural areas, except in south Asia, sub-Saharan Africa and some countries in central and eastern Europe. Our results show that in much of the world, the growth and developmental advantages of living in cities have diminished in the twenty-first century, whereas in much of sub-Saharan Africa they have amplified.
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