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Asthma prevention

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https://www.readbyqxmd.com/read/29457208/children-deserve-smoke-free-world
#1
REVIEW
R Remesh Kumar, P R Jayakumar, R Krishna Mohan
Tobacco smoke, active or passive exposure was the major cause of preventable morbidity and mortality in the world during twentieth century and will continue to be the same in the twenty-first century also if the current trends continue. Both active and passive smoking are having significance in relation to child health. Exposure starts antenatally from placenta to the fetus and later phases through passive exposure to experimental and regular smoking and ultimately addiction and habitual smoking. Evidences are in favour of causal relationship with intrauterine growth restriction, sudden infant death syndrome, decreased pulmonary function, increased risk for respiratory tract infection, otitis media, wheeze, asthma, neurobehavioral disorders, cleft palate and triggering pathogenesis of fetal and childhood onset of adult diseases, especially pulmonary and cardio vascular diseases...
February 19, 2018: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/29456163/association-of-air-pollution-exposure-and-interleukin-13-haplotype-with-the-risk-of-aggregate-bronchitic-symptoms-in-children
#2
Yungling Leo Lee, Jing-Huei Chen, Chi-Min Wang, Mei-Ling Chen, Bing-Fang Hwang
Interleukin-13(IL-13) might play an important role in driving aggregate bronchitic symptoms pathogenesis. However, none of the studies assessed the interaction between air pollutants exposure and IL-13 gene on the risk of aggregate bronchitic symptoms in non-asthma children. To assess the independent and joint effects of the exposure to air pollution and IL-13 haplotypes on the risk of aggregate bronchitic symptoms, we conducted a cross-sectional study and focused on non-asthma children. The study population consisted of 2944 children...
February 12, 2018: EBioMedicine
https://www.readbyqxmd.com/read/29453631/occupational-animal-allergy
#3
REVIEW
Gregg M Stave
PURPOSE OF REVIEW: This review explores animal allergen exposure in research laboratories and other work settings, focusing on causes and prevention. RECENT FINDINGS: (1) Consistent with the hygiene hypothesis, there is new evidence that early childhood exposure to pets produces changes in the gut microbiome that likely lead to a lower risk of allergy. (2) Anaphylaxis from laboratory animal bites occurs more frequently than suggested by prior literature. (3) Animal allergens represent an occupational hazard in a wide variety of work settings ranging from fields that work with animals to public settings like schools and public transportation where allergens are brought into or are present in the workplace...
February 16, 2018: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/29453431/delayed-gut-microbiota-development-in-high-risk-for-asthma-infants-is-temporarily-modifiable-by-lactobacillus-supplementation
#4
Juliana Durack, Nikole E Kimes, Din L Lin, Marcus Rauch, Michelle McKean, Kathryn McCauley, Ariane R Panzer, Jordan S Mar, Michael D Cabana, Susan V Lynch
Gut microbiota dysbiosis and metabolic dysfunction in infancy precedes childhood atopy and asthma development. Here we examined gut microbiota maturation over the first year of life in infants at high risk for asthma (HR), and whether it is modifiable by early-life Lactobacillus supplementation. We performed a longitudinal comparison of stool samples collected from HR infants randomized to daily oral Lactobacillus rhamnosus GG (HRLGG) or placebo (HRP) for 6 months, and healthy (HC) infants. Meconium microbiota of HRP participants is distinct, follows a delayed developmental trajectory, and is primarily glycolytic and depleted of a range of anti-inflammatory lipids at 6 months of age...
February 16, 2018: Nature Communications
https://www.readbyqxmd.com/read/29452202/effectiveness-of-indoor-allergen-reduction-in-the-management-of-asthma-a-systematic-review
#5
Brian F Leas, Kristen E D'Anci, Andrea J Apter, Tyra Bryant-Stephens, Marcus P Lynch, Janice L Kaczmarek, Craig A Umscheid
BACKGROUND: This review will inform updated National Asthma Education and Prevention Program clinical practice guidelines. OBJECTIVE: To evaluate the effectiveness of allergen reduction interventions on asthma outcomes. METHODS: We systematically searched the gray literature and five bibliographic databases. Eligible studies included systematic reviews, randomized controlled trials, and nonrandomized interventional studies. Risk of bias was assessed using the Cochrane Risk of Bias instrument and the Newcastle-Ottawa scale...
February 13, 2018: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29448086/exposure-to-diisodecyl-phthalate-exacerbated-th2-and-th17-mediated-asthma-through-aggravating-oxidative-stress-and-the-activation-of-p38-mapk
#6
Wei Qin, Ting Deng, Haiyan Cui, Qian Zhang, Xudong Liu, Xu Yang, Mingqing Chen
Diisodecyl phthalate (DIDP) is considered to be one of the less toxic phthalates. However epidemiological studies suggest that DIDP is associated with the occurrence of asthma. The effect of DIDP exposure on allergic asthma and the underlying mechanism have not been fully elucidated. Here, mice were exposed to DIDP and sensitization with OVA. The results demonstrated that DIDP exposure aggravated allergic asthma. Exposure to 15 mg/kg/day DIDP markedly exacerbated airway remodeling and promoted airway hyperresponsiveness (AhR)...
February 12, 2018: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/29437247/developmental-endothelial-locus-1-del-1-antagonizes-interleukin-17-mediated-allergic-asthma
#7
Shu Yan, Li Chen, Qi Zhao, Ya-Nan Liu, Rui Hou, Jing Yu, Hong Zhang
Interleukin (IL)-17 is a major contributor to the pathogenesis of allergic asthma. Developmental endothelial locus-1 (Del-1) is an endothelial cell-secreted protein known to inhibit IL-17 expression. However, little is known about the association between Del-1 and IL-17 in the pathogenesis of allergic asthma. Using bronchoalveolar Lavage Fluid (BALF) and peripheral blood samples collected from allergic asthmatic patients and controls, we explored the role of Del-1 in relation to IL-17 in allergic asthma. We found that the negative correlation between Del-1 and IL-17 was significant in BALF of allergic asthmatics...
February 13, 2018: Immunology and Cell Biology
https://www.readbyqxmd.com/read/29437018/immunomodulatory-and-anti-inflammatory-effects-of-thymoquinone
#8
Hanieh Shaterzadeh-Yazdi, Mohammad-Foad Noorbakhsh, Farzad Hayati, Saeed Samarghandian, Tahereh Farkhondeh
The immunomodulatory properties of Nigella sativa seed, as a basis of its clinical applications by many cultures have been reviewed. Thymoquinone (TQ) is one of the major bioactive component of the volatile oil of N. sativa seeds. The present investigations provide a comprehensive review of the ability of TQ to modulate inflammation and immune-related disorders in the various important disease states. This finding showed that TQ has the anti-inflammatory properties that prevents the biosynthesis of important mediators in inflammatory processes and asthma such as 5-LO, COX, PGD2 and LTs...
February 11, 2018: Cardiovascular & Hematological Disorders Drug Targets
https://www.readbyqxmd.com/read/29436404/from-systems-biology-to-p4-medicine-applications-in-respiratory-medicine
#9
Guillaume Noell, Rosa Faner, Alvar Agustí
Human health and disease are emergent properties of a complex, nonlinear, dynamic multilevel biological system: the human body. Systems biology is a comprehensive research strategy that has the potential to understand these emergent properties holistically. It stems from advancements in medical diagnostics, "omics" data and bioinformatic computing power. It paves the way forward towards "P4 medicine" (predictive, preventive, personalised and participatory), which seeks to better intervene preventively to preserve health or therapeutically to cure diseases...
March 31, 2018: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/29435713/incidence-of-infusion-hypersensitivity-reaction-after-withholding-dexamethasone-premedication-in-early-breast-cancer-patients-not-experiencing-two-previous-cycles-of-infusion-hypersensitivity-reaction-for-weekly-paclitaxel-chemotherapy
#10
Napa Parinyanitikul, Walailuk Tanpipattanakul, Nattaya Poovorawan, Thanapoom Rattananupong, Poranee Laoitthi, Piyada Sithidetphaiboon, Suebpong Thanasanvimon, Virote Sriuranpong
BACKGROUND: Premedication with dexamethasone is an essential part of the prevention of hypersensitivity reaction (HSR) associated with taxane administration. However, the possibility of stopping dexamethasone premedication has been investigated in previous studies to reduce the steroid's adverse events; however, either the result or the particular protocol was limited. Thus, our study aimed to evaluate the incidence of HSR after dexamethasone premedication discontinuation after lack of HSR in two previous weekly paclitaxel infusions...
February 12, 2018: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/29433489/predictors-of-inappropriate-and-excessive-use-of-reliever-medications-in-asthma-a-16-year-population-based-study
#11
Hamid Tavakoli, J Mark FitzGerald, Larry D Lynd, Mohsen Sadatsafavi
BACKGROUND: Understanding factors associated with the inappropriate or excessive use of short-acting beta agonists (SABA) can help develop better policies. METHODS: We used British Columbian (BC)'s administrative health data (1997-2014) to create a retrospective cohort of asthma patients aged between 14 and 55 years. The primary and secondary outcomes were, respectively, inappropriate and excessive use of SABA based on a previously validated definition. Exposures were categorised into groups comprising socio-demographic variables, indicators of type and quality of asthma care, and burden of comorbid conditions...
February 12, 2018: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29432192/cysteinyl-leukotriene-receptor-1-antagonism-prevents-experimental-abdominal-aortic-aneurysm
#12
Antonio Di Gennaro, Ana Carolina Araújo, Albert Busch, Hong Jin, Dick Wågsäter, Emina Vorkapic, Kenneth Caidahl, Per Eriksson, Bengt Samuelsson, Lars Maegdefessel, Jesper Z Haeggström
Cysteinyl-leukotrienes (cys-LTs) are 5-lipoxygenase-derived lipid mediators involved in the pathogenesis and progression of inflammatory disorders, in particular asthma. We have previously found evidence linking these mediators to increased levels of proteolytic enzymes in tissue specimens of human abdominal aortic aneurysm (AAA). Here we show that antagonism of the CysLT1 receptor by montelukast, an established antiasthma drug, protects against a strong aorta dilatation (>50% increase = aneurysm) in a mouse model of CaCl 2 -induced AAA at a dose comparable to human medical practice...
February 5, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29431974/childhood-bullying-implications-for-physicians
#13
Mary M Stephens, Hazel T Cook-Fasano, Katherine Sibbaluca
Childhood bullying is common and can lead to serious adverse physical and mental health effects for both the victim and the bully. In teenagers, risk factors for becoming a victim of bullying include being lesbian, gay, bisexual, or transgender; having a disability or medical condition such as asthma, diabetes mellitus, a skin condition, or food allergy; or being an outlier in weight and stature. An estimated 20% of youth have been bullied on school property, and 16% have been bullied electronically in the past year...
February 1, 2018: American Family Physician
https://www.readbyqxmd.com/read/29431885/important-and-specific-role-for-basophils-in-acute-allergic-reactions
#14
Peter Korošec, Bernhard F Gibbs, Matija Rijavec PhD, Adnan Custovic, Paul J Turner
IgE-mediated allergic reactions involve the activation of effector cells, predominantly through the high-affinity IgE receptor (FcεRI) on mast cells and basophils. Although the mast cell is considered the major effector cell during acute allergic reactions, more recent studies indicate a potentially important and specific role for basophils and their migration which occurs rapidly upon allergen challenge in humans undergoing anaphylaxis. We review the evidence for a role of basophils in contributing to clinical symptoms of anaphylaxis, and discuss the possibility that basophil trafficking during anaphylaxis might be a pathogenic (to target organs) or protective (preventing degranulation in circulation) response...
February 12, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29431528/targeting-the-exposome-does-correcting-vitamin-d-deficiency-have-potential-to-treat-and-prevent-asthma
#15
Paul E Pfeffer
No abstract text is available yet for this article.
February 12, 2018: Expert Review of Clinical Immunology
https://www.readbyqxmd.com/read/29428600/contraction-dependent-tgf-%C3%AE-1-activation-is-required-for-thrombin-induced-remodeling-in-human-airway-smooth-muscle-cells
#16
Zhi-Hui Yao, Hao-Jun Xie, Ya-Lu Yuan, Ya-Ting Huo, Jing Cao, Wen-Yan Lai, Rui-Jun Cai, Yuan-Xiong Cheng
AIMS: Thrombin is a serine proteinase that is not only involved in coagulation cascade, but also mediates a number of biological responses relevant to tissues repair, and induces bronchoconstriction. TGF-β plays a pivotal role in airway remodeling due to its effects on airway smooth muscle proliferation and extracellular matrix (ECM) deposition. Recently, bronchoconstriction itself is found to constitute a form of strain and is highly relevant to asthmatic airway remodeling. However, the underlying mechanisms remain unknown...
February 8, 2018: Life Sciences
https://www.readbyqxmd.com/read/29427989/diagnosis-and-management-of-severe-asthma
#17
Kian Fan Chung
Severe therapy-resistant asthma has been defined as "asthma which requires treatment with high dose inhaled corticosteroids (ICSs) plus a second controller (and/or systemic corticosteroids) to prevent it from becoming 'uncontrolled' or which remains 'uncontrolled' despite this therapy". Patients who usually present with 'difficult-to-treat asthma' should first be assessed to determine whether he/she has asthma with the exclusion of other diagnoses and if so, whether the asthma can be classified as severe therapy-resistant...
February 2018: Seminars in Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29427984/controlling-the-risk-domain-in-pediatric-asthma-through-personalized-care
#18
William C Anderson, Stanley J Szefler
Strategies to control the risk domain of NHLBI EPR-3 (National Heart, Lung, and Blood Institute Expert Panel Report-3) asthma guidelines, which includes exacerbations requiring systemic corticosteroids, reduction in lung growth, and progressive loss of lung function, and treatment-related adverse effects, are evolving in children and adolescents. Increasing evidence demonstrates that children and adolescents with asthma are at risk of a reduction in lung growth, leading to lower lung function and potentially chronic obstructive pulmonary disease as adults...
February 2018: Seminars in Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29427982/exercise-and-asthma
#19
Andréanne Côté, Julie Turmel, Louis-Philippe Boulet
Transient airway narrowing can occur during or following exercise, a phenomenon called exercise-induced bronchoconstriction (EIB). The main mechanism of EIB is considered to be airway dehydration, resulting from increased ventilation during exercise. In asthma, such water loss causes an increase in airway fluid osmolarity, inducing airway smooth muscle contraction following the release of mediators from airway inflammatory cells. Asthmatics frequently experience EIB, but it may also be observed in others not reporting asthma symptoms, particularly elite endurance athletes...
February 2018: Seminars in Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/29427878/traffic-related-air-pollution-and-development-and-persistence-of-asthma-and-low-lung-function
#20
Gayan Bowatte, Caroline J Lodge, Luke D Knibbs, Bircan Erbas, Jennifer L Perret, Bin Jalaludin, Geoffrey G Morgan, Dinh S Bui, Graham G Giles, Garun S Hamilton, Richard Wood-Baker, Paul Thomas, Bruce R Thompson, Melanie C Matheson, Michael J Abramson, E Haydn Walters, Shyamali C Dharmage
BACKGROUND AND AIMS: Traffic Related Air Pollution (TRAP) exposure is known to exacerbate existing respiratory diseases. We investigated longer term effects of TRAP exposure for individuals with or without existing asthma, and with or without lower lung function. METHODS: Associations between TRAP exposure and asthma (n = 689) and lung function (n = 599) were investigated in the prospective Tasmanian Longitudinal Health Study (TAHS). TRAP exposure at age 45 years was measured using two methods based on residential address: mean annual NO2 exposure; and distance to nearest major road...
February 7, 2018: Environment International
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