Regarding epithelial dysregulation in obese severe asthmatics with gastro-oesophageal reflux

We read with interest the recent article by Perotin et al. [1], which investigated epithelial dysregulation in obese severe asthma patients with gastro-oesophageal reflux. The researchers found that bronchial epithelial gene expression, sampled by airway brushing, identified an endotype defined by epithelial dysregulation associated with obesity, gastro-oesophageal reflux and use of proton pump inhibitors (OGP cluster). Relative to non-asthmatic healthy controls, pathway signature analysis indicated that the wingless tail (WNT)/β-catenin pathway was the top epithelial pathway dysregulated in the OGP cluster. The cluster was also associated with paucigranulocytic sputa, lower numbers of biopsy lymphocytes, but no thickening of the basement membrane.
Source: European Respiratory Journal - Category: Respiratory Medicine Authors: Tags: Original Articles: Correspondence Source Type: research

Related Links:

Conclusions:The absence of demographic or clinical predictors of OSA supports using general indications for PSG in children with ASD.Citation:Tomkies A, Johnson RF, Shah G, Caraballo M, Evans P, Mitchell RB. Obstructive sleep apnea in children with autism.J Clin Sleep Med. 2019;15(10):1469–1476.
Source: Journal of Clinical Sleep Medicine : JCSM - Category: Sleep Medicine Source Type: research
Asthma control changes over time and many factors contribute to this variability. Environmental exposures such as seasonal allergen fluctuations, second-hand tobacco exposure, and viral upper respiratory tract infections (RTI) are just a few of the known triggers of lability 1. In addition, host factors such as inhaler technique and co-morbid conditions including atopic diseases, obesity, and acid reflux can also contribute to this changeability. During times of lability, overzealous intervention can lead to overuse of oral corticosteroids (OCS) and healthcare visits, while delayed treatment can lead to severe exacerbation...
Source: Annals of Allergy, Asthma and Immunology - Category: Allergy & Immunology Authors: Tags: Review Source Type: research
Gastro-oesophageal reflux disease (GORD) and obesity are associated with frequent exacerbations and poor quality of life in people living with asthma. Multiple mechanisms have been proposed for the effect of obesity, including modification of inflammation affecting epithelial cell proliferation and wound repair, while the role of GORD is poorly understood and proton pump inhibitors (PPIs) are of variable efficacy. GORD might exert a deleterious effect by inducing vagal reflex, neuroinflammation and directly triggering airway inflammation (via microaspiration). Studies of reflux in animal models and human bronchial epitheli...
Source: European Respiratory Journal - Category: Respiratory Medicine Authors: Tags: Original Articles: Research letters Source Type: research
In this study, we investigated the antihypertensive effect and underlying mechanisms of P. asiatica L. seeds extract (PASE) in spontaneously hypertensive rat (SHR). Male SHRs were treated with 2.5 mg/kg of fosinopril (FOS) and 400 mg/kg of PASE orally per day for once or 12 weeks. SHR or Wistar-Kyoto rats (WKY) receiving vehicle (distilled water) was used as control. The results demonstrated systolic, diastolic, and mean blood pressures (SBP, DBP, and MBP) were significantly lowered after single and long-term intragastric administration of PASE. The cardiac and aortic index and collagen accumulation were improved in the PA...
Source: Frontiers in Pharmacology - Category: Drugs & Pharmacology Source Type: research
It’s hardly news that the gastrointestinal tract is important to human health: It transports food from the mouth to the stomach, converts it into absorbable nutrients and stored energy, and shuttles waste back out of the body. If you don’t properly nourish yourself, you don’t live. It’s that simple. But in recent years, scientists have discovered that the GI system has an even bigger, more complex job than previously appreciated. It’s been linked to numerous aspects of health that have seemingly nothing to do with digestion, from immunity to emotional stress to chronic illnesses, including can...
Source: TIME: Health - Category: Consumer Health News Authors: Tags: Uncategorized Research Source Type: news
Gastro-oesophageal reflux disease (GORD) has long been associated with poor asthma control without an established cause-effect relationship.610 asthmatics (421 severe/88 mild-moderate) and 101 healthy controls were assessed clinically and a subset of 154 severe asthmatics underwent proteomic analysis of induced sputum using untargeted mass spectrometry, LC-IMS-MSE. Univariate and multiple logistic regression analyses (MLR) were conducted to identify proteins associated with GORD in this cohort.When compared to mild/moderate asthmatics and healthy individuals, respectively, GORD was three- and ten-fold more prevalent in sev...
Source: Respiratory Medicine - Category: Respiratory Medicine Authors: Source Type: research
Antibiotics can be lifesaving, but they can have serious downsides — including increasing the risk of obesity when they are given early in life, according to a recent study. Antibiotics kill bacteria. That can be a very good thing when the bacteria are causing a serious infection. But antibiotics don’t limit themselves to killing infection-causing bacteria; they kill other bacteria in the body, too. And that can be a very bad thing. Our bodies are full of bacteria. These bacteria, part of our microbiome, are important. Along with other micro-organisms in our body, they play a role in how we digest foods, in nor...
Source: Harvard Health Blog - Category: Consumer Health News Authors: Tags: Children's Health Infectious diseases Parenting Source Type: blogs
ConclusionRegardless of sex, abdominal visceral fat was associated with reduced asthma quality of life independent of other obesity indices, and this may be explained by the impact of abdominal visceral fat on reduced FEV1 % predicted and higher risk for GERD and depression. Therefore, visceral adiposity may have more clinical influence on asthma symptoms than any other obesity indices.
Source: The Journal of Allergy and Clinical Immunology: In Practice - Category: Allergy & Immunology Source Type: research
Authors: Bardin PG, Rangaswamy J, Yo SW Abstract Asthma care has increasingly focused on personalised management for severe asthma, and recognition of the role and importance of comorbid conditions has increased. Severe asthma can be crippling; associated comorbid conditions often play a key role in the significant disease morbidity and frequently contribute to a severe and difficult-to-treat asthma phenotype. Comorbid conditions can be broadly grouped as being either airway-related or airway-unrelated. Airway-related comorbid conditions with the greatest impact are allergic rhinitis, chronic rhinosinusitis, vocal ...
Source: Medical Journal of Australia - Category: General Medicine Tags: Med J Aust Source Type: research
Conclusions: Asthma was associated to bronchiectasis in 76% of the patients but it was estimated as etiology in only every fifth patient. However, retrospectively it is difficult to exclude asthma as a background cause in many cases with recurrent asthma like symptoms and respiratory infections. Nevertheless, in one fifth of the patients no identifiable cause was found. None of the patients had had tuberculosis. Lung function test results were well preserved and in 66% bronchiectasis was restricted to one-three lobes.
Source: European Respiratory Journal - Category: Respiratory Medicine Authors: Tags: Epidemiology Source Type: research
More News: Acid Reflux | Asthma | Eating Disorders & Weight Management | Gastroenterology | Gastroesophageal Reflux Disease | Genetics | GERD | Obesity | Respiratory Medicine