We examined common variation in asthma risk by conducting a meta-analysis of worldwide asthma genome-wide association studies (23,948 cases, 118,538 controls) from ethnically-diverse populations. We identified five new asthma loci, uncovered two additional novel associations at two known asthma loci, established asthma associations at two loci implicated previously in comorbidity of asthma plus hay fever, and confirmed nine known loci. Investigation of pleiotropy showed large overlaps in genetic variants with autoimmune and inflammatory diseases. Enrichment of asthma risk loci in enhancer marks, especially in immune cells, suggests a major role of these loci in the regulation of immune-related mechanisms.
There is evidence of significantly different morphological characteristics and molecular mechanisms of inflammation and bronchoconstriction underlying the clinical heterogeneity of severe asthma.
In the present research the complex cytologic and biochemical estimation of a condition induced sputum at 19 patients with the heavy therapeutic-sensitive form of a bronchial asthma and 18 patients with chronic obstructive disease of lungs is lead. Dominating morphological and biochemical markers of an asthma became the raised number of macrophages, lymphocytes, and eosinophils at decrease in functional activity neutrophil elastase and increases activation properties. Progressing of destructive and fibrous processes at patients with heavy form chronic obstructive pulmonary disease occurs on a background active neutrophil and lymphocytes reactions in a mucous membrane of bronchial tubes that proves to be true high activity elastase and falling of functioning proteinase inhibitor.
Целью исследования явилась оценка вклада тканевых и клеточных структур в развитие ремоделирования слизистой оболочки бронхов
у больных с тяжелой формой терапевтическичувствительной бронхиальной астмы (БА) и хронической обструктивной болезни легких
(ХОБЛ). Впервые проводили морфологическое и морфометрическое исследование бронхобиоптатов слизистой оболочки у этой группы пациентов. При БА гистологические изменения связаны с увеличением общего числа иммунокомпетентных клеток, утолщением
базальной мембраны и выраженной бокаловидноклеточной гиперплазией. О гетерогенности ремоделирования слизистой оболочки
бронхов позволяют судить индексы бокаловидноклеточной и базальноклеточной гиперплазии. ХОБЛ сопровождается формированием
нейтрофильного типа воспаления в бронхиальном дереве с развитием плоскоклеточной метаплазии и базальноклеточной пролиферации эпителиального пласта с последующим развитием фиброза собственной пластинки слизистой оболочки.
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