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Childhood asthma

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https://www.readbyqxmd.com/read/28100322/-association-between-risk-factors-during-maternal-pregnancy-and-the-neonatal-period-and-childhood-bronchial-asthma
#1
Hui-Qin Zhang, Rui Fan, Jing-Jing Zhang, Xiao-Juan Tao, Xin Sun
OBJECTIVE: To study the association of the risk factors during maternal pregnancy and the neonatal period with childhood bronchial asthma. METHODS: A total of 306 children with asthma (asthma group) and 250 healthy children (control group) were enrolled. Their clinical data during the neonatal period and the maternal data during pregnancy were retrospectively studied. RESULTS: The univariate analysis showed that there were significant differences in the rates of maternal use of antibiotics during pregnancy, use of antibiotics and probiotics during the neonatal period, preterm birth, cesarean section, low birth weight, and breast feeding (>6 months) between the asthma and control groups (P<0...
January 2017: Zhongguo Dang Dai Er Ke za Zhi, Chinese Journal of Contemporary Pediatrics
https://www.readbyqxmd.com/read/28092910/effects-of-in-utero-and-postnatal-exposure-to-secondhand-smoke-on-lung-function-by-gender-and-asthma-status-the-seven-northeastern-cities-snec-study
#2
Li-Wen Hu, Mo Yang, Shu Chen, Kuntal Shah, Yismaw Hailegiorgis, Richai Burgens, Michael Vaughn, Jin Huang, Pamela Xaverius, Gunther Paul, Lidia Morawska, Tao Lu, Shao Lin, Shou-Qiang Zhong, Min-Li Kong, Yan-Qi Xie, Yuan-Tao Hao, Xiao-Wen Zeng, Zhengmin Qian, Guang-Hui Dong
BACKGROUND: Little information exists on whether gender or asthma status modifies the effects of secondhand smoke (SHS) exposure on lung function. OBJECTIVE: To evaluate whether gender or asthma status modifies the association of SHS exposure with lung function. METHODS: A total of 6,740 children (average 11.6 years) were recruited from 24 districts of 7 cities in northeast China in 2012. SHS exposure included exposure to environmental and maternal smoking both in utero and during early childhood (postnatal)...
January 17, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28091126/association-between-perfluoroalkyl-substance-exposure-and-asthma-and-allergic-disease-in-children-as-modified-by-mmr-vaccination
#3
Clara Amalie Gade Timmermann, Esben Budtz-Jørgensen, Tina Kold Jensen, Christa Elyse Osuna, Maria Skaalum Petersen, Ulrike Steuerwald, Flemming Nielsen, Lars K Poulsen, Pál Weihe, Philippe Grandjean
Perfluoroalkyl substances (PFASs) are highly persistent chemicals that might be associated with asthma and allergy, but the associations remain unclear. Therefore, this study examined whether pre- and postnatal PFAS exposure was associated with childhood asthma and allergy. Measles, mumps, and rubella (MMR) vaccination in early life may have a protective effect against asthma and allergy, and MMR vaccination is therefore taken into account when evaluating these associations. In a cohort of Faroese children whose mothers were recruited during pregnancy, serum concentrations of five PFASs - Perfluorohexane sulfonic acid (PFHxS), perfluorooctane sulfonic acid (PFOS), perfluorooctanoic acid (PFOA), perfluorononanoic acid (PFNA), and perfluorodecanoic acid (PFDA) - were measured at three timepoints (maternal serum in pregnancy week 34-36 and child serum at ages 5 and 13 years) and their association with immunoglobulin E (IgE) (cord blood and at age 7 years) and asthma/allergic diseases (questionnaires at ages 5 and 13 years and skin prick test at age 13 years) was determined...
January 16, 2017: Journal of Immunotoxicology
https://www.readbyqxmd.com/read/28089871/parents-childhood-socioeconomic-circumstances-are-associated-with-their-children-s-asthma-outcomes
#4
Edith Chen, Madeleine U Shalowitz, Rachel E Story, Katherine B Ehrlich, Erika M Manczak, Paula J Ham, Van Le, Gregory E Miller
BACKGROUND: Previous literature documents associations between low socioeconomic status (SES) and poor health outcomes, including asthma. However, this literature has largely focused on the effects of current family circumstances. OBJECTIVE: To test an intergenerational hypothesis, that the childhood SES that parents experience will be associated with asthma outcomes in their children, independent of effects of current family SES. Secondly, to test whether this association is in part due to difficulties in current parent-child relationships...
January 13, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28088397/antibiotics-in-pregnancy-increase-children-s-risk-of-otitis-media-and-ventilation-tubes
#5
Tine Marie Pedersen, Jakob Stokholm, Jonathan Thorsen, Anna-Rosa Cecilie Mora-Jensen, Hans Bisgaard
OBJECTIVES: To study the association between antibiotic intake in pregnancy and the development of otitis media and placement of ventilation tubes (VTs) in the offspring under the hypothesis that antibiotics in pregnancy may alter the offspring's propensity for disease. STUDY DESIGN: Data from the 700 children in the Copenhagen Prospective Studies on Asthma in Childhood 2010 unselected birth cohort study were used. Information on maternal antibiotic use and other exposures during pregnancy was collected prospectively from interviews and validated in national registries...
January 11, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/28087381/prevalence-risk-factors-and-clinical-outcomes-of-atopic-and-nonatopic-asthma-among-rural-children
#6
Joshua A Lawson, Luan M Chu, Donna C Rennie, Louise Hagel, Chandima P Karunanayake, Punam Pahwa, James A Dosman
BACKGROUND: Because of time and cost constraints, objective classification of atopic and nonatopic asthma has been limited in large epidemiologic studies. However, as we try to better understand exposure-outcome associations and ensure appropriate treatment of asthma, it is important to focus on phenotype-defined asthma classification. OBJECTIVE: To compare atopic and nonatopic asthma in rural children with regard to risk factors and clinical outcomes. METHODS: We conducted a cross-sectional study in rural Saskatchewan, Canada, in 2011...
January 10, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28079560/prenatal-exposures-and-the-development-of-childhood-wheezing-illnesses
#7
Christian Rosas-Salazar, Tina V Hartert
PURPOSE OF REVIEW: To critically evaluate and summarize studies published between July 2015 and June 2016 linking prenatal exposures and the onset of childhood wheezing illnesses and to discuss future research directions in this field. RECENT FINDINGS: The aggregated evidence indicates a consistent detrimental effect of prenatal exposure to parental smoking, outdoor air pollution, and maternal stress on childhood wheezing illnesses. Less consistent evidence suggests an adverse impact of maternal obesity during pregnancy and prenatal exposure to antibiotics on these outcomes...
January 11, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28079559/strategies-to-alter-the-natural-history-of-childhood-asthma
#8
K A Lee-Sarwar, L B Bacharier, A A Litonjua
PURPOSE OF REVIEW: Asthma exhibits significant heterogeneity in occurrence and severity over the lifespan. Our goal is to discuss recent evidence regarding determinants of the natural history of asthma during childhood, and review the rationale behind and status of major efforts to alter its course. RECENT FINDINGS: Variations in microbial exposures are associated with risk of allergic disease, and the use of bacterial lysates may be a promising preventive strategy...
January 11, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28077947/asthma-and-the-microbiome-defining-the-critical-window-in-early-life
#9
REVIEW
Leah T Stiemsma, Stuart E Turvey
Asthma is a chronic inflammatory immune disorder of the airways affecting one in ten children in westernized countries. The geographical disparity combined with a generational rise in prevalence, emphasizes that changing environmental exposures play a significant role in the etiology of this disease. The microflora hypothesis suggests that early life exposures are disrupting the composition of the microbiota and consequently, promoting immune dysregulation in the form of hypersensitivity disorders. Animal model research supports a role of the microbiota in asthma and atopic disease development...
2017: Allergy, Asthma, and Clinical Immunology
https://www.readbyqxmd.com/read/28077477/the-global-asthma-network-rationale-and-methods-for-phase-i-global-surveillance-prevalence-severity-management-and-risk-factors
#10
Philippa Ellwood, M Innes Asher, Nils E Billo, Karen Bissell, Chen-Yuan Chiang, Eamon M Ellwood, Asma El-Sony, Luis García-Marcos, Javier Mallol, Guy B Marks, Neil E Pearce, David P Strachan
The Global Asthma Network (GAN), established in 2012, followed the International Study of Asthma and Allergies in Childhood (ISAAC). ISAAC Phase One involved over 700 000 adolescents and children from 156 centres in 56 countries; it found marked worldwide variation in symptom prevalence of asthma, rhinitis and eczema that was not explained by the current understanding of these diseases; ISAAC Phase Three involved over 1 187 496 adolescents and children (237 centres in 98 countries). It found that asthma symptom prevalence was increasing in many locations especially in low- and middle-income countries where severity was also high, and identified several environmental factors that required further investigation...
January 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28077097/what-patients-really-think-about-asthma-guidelines-barriers-to-guideline-implementation-from-the-patients-perspective
#11
H Lingner, B Burger, P Kardos, C P Criée, H Worth, E Hummers-Pradier
BACKGROUND: Treatment of asthma does not always comply with asthma guidelines (AG). This may be rooted in direct or indirect resistance on the doctors' and/or patients' side or be caused by the healthcare system. To assess whether patients' concepts and attitudes are really an implementation barrier for AG, we analysed the patients' perspective of a "good asthma therapy" and contrasted their wishes with current recommendations. METHODS: Using a qualitative exploratory design, topic centred focus group (FG) discussions were performed until theoretical saturation was reached...
January 11, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28076664/sensitization-predicts-asthma-development-among-wheezing-toddlers-in-secondary-healthcare
#12
Nienke A Boersma, Ruud W H Meijneke, Johannes C Kelder, Cornelis K van der Ent, Walter A F Balemans
INTRODUCTION: Some wheezing toddlers develop asthma later in childhood. Sensitization is known to predict asthma in birth cohorts. However, its predictive value in secondary healthcare is uncertain. AIM: This study examines the predictive value of sensitization to inhalant allergens among wheezing toddlers in secondary healthcare for the development of asthma at school age (≥6 years). METHODS: Preschool children (1-3 years) who presented with wheezing in secondary healthcare were screened on asthma at school age with the International Study of Asthma and Allergies in Childhood questionnaire...
January 11, 2017: Pediatric Pulmonology
https://www.readbyqxmd.com/read/28069594/sigmod-an-exact-and-efficient-method-to-identify-a-strongly-interconnected-disease-associated-module-in-a-gene-network
#13
Yuanlong Liu, Myriam Brossard, Damian Roqueiro, Patricia Margaritte-Jeannin, Chloé Sarnowski, Emmanuelle Bouzigon, Florence Demenais
MOTIVATION: Apart from single marker-based tests classically used in genome-wide association studies (GWAS), network-assisted analysis has become a promising approach to identify a set of genes associated with disease. To date, most network-assisted methods aim at finding genes connected in a background network, whatever the density or strength of their connections. This can hamper the findings as sparse connections are non-robust against noise from either the GWAS results or the network resource...
January 9, 2017: Bioinformatics
https://www.readbyqxmd.com/read/28068894/strain-differences-in-a-murine-model-of-air-pollutant-induced-nonatopic-asthma-and-rhinitis
#14
Jack R Harkema, Lucas A Hotchkiss, Nicholas A Vetter, Daven N Jackson-Humbles, Ryan P Lewandowski, James G Wagner
Ozone is an irritating gas found in photochemical smog. Epidemiological associations have been made between the onset of asthma and childhood exposures to increasing levels of ambient ozone (i.e., air pollutant-induced nonatopic asthma). Individuals, however, vary in their susceptibility to this outdoor air pollutant, which may be due, in part, to their genetic makeup. The present study was designed to test the hypothesis that there are murine strain-dependent differences in pulmonary and nasal pathologic responses to repeated ozone exposures...
January 2017: Toxicologic Pathology
https://www.readbyqxmd.com/read/28065346/the-calculated-risk-of-childhood-asthma-from-severe-bronchiolitis
#15
EDITORIAL
Jonathan M Gaffin, Wanda Phipatanakul
No abstract text is available yet for this article.
January 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28060556/the-frequency-of-sleep-disordered-breathing-in-children-with-asthma-and-its-effects-on-asthma-control
#16
Tayfur Ginis, Fatih Alper Akcan, Murat Capanoglu, Muge Toyran, Refika Ersu, Can Naci Kocabas, Ersoy Civelek
BACKGROUND: The presence of sleep-disordered breathing (SDB) in children with asthma may cause difficult to control asthma. OBJECTIVES: The aim of this study was to determine the frequency of SDB in children with asthma, to evaluate its effects on asthma control and to assess the risk factors associated with the presence of SDB. METHODS: Parents of children who Sleep Questionnaire (PSQ) and the Childhood Asthma Control Test (C-ACT). Asthma control level was assessed according to Global Initiative for Asthma (GINA)...
January 6, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28058103/zinc-supplementation-in-children-with-asthma-exacerbation
#17
Sanguansak Rerksuppaphol, Lakkana Rerksuppaphol
Zinc deficiency has demonstrated an association with the risk of asthma. This study aimed to evaluate the efficacy of zinc supplementation in reducing the severity of childhood asthma exacerbation. A number of 42 children with asthma exacerbation admitted to the hospital were randomized to receive either zinc bis-glycinate (30 mg elemental zinc/day) or a placebo in adjuvant to the standard treatment. The pediatric respiratory assessment measure (PRAM) was used to measure the asthma severity. The primary outcome was a change in asthma severity from the baseline to the end of study...
November 17, 2016: Pediatric Reports
https://www.readbyqxmd.com/read/28056923/childhood-asthma-asthma-severity-indicators-and-related-conditions-along-an-urban-rural-gradient-a-cross-sectional-study
#18
Joshua A Lawson, Donna C Rennie, Don W Cockcroft, Roland Dyck, Anna Afanasieva, Oluwafemi Oluwole, Jinnat Afsana
BACKGROUND: Asthma prevalence is generally lower in rural locations with some indication of an urban-rural gradient. However, among children with asthma, certain rural exposures thought to protect against the development of asthma could aggravate the condition. We examined childhood asthma prevalence and related conditions along an urban-rural gradient and also examined the characteristics of those with asthma along the urban-rural gradient. METHODS: In 2013 we completed a cross-sectional survey of 3509 children aged 5-14 years living in various population densities of Saskatchewan, Canada...
January 5, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28056916/household-biomass-fuel-use-asthma-symptoms-severity-and-asthma-underdiagnosis-in-rural-schoolchildren-in-nigeria-a-cross-sectional-observational-study
#19
Oluwafemi Oluwole, Ganiyu O Arinola, Dezheng Huo, Christopher O Olopade
BACKGROUND: In 2014, the International Study of Asthma and Allergies in Childhood (ISAAC) reported that the highest prevalence of symptoms of severe asthma was found in the low- and middle-income countries (LMICs), including Nigeria. While exposure to biomass fuel use may be an important risk factor in the development of asthma, its association with asthma symptoms severity has not been well-established. The aim of this study is to extend the spectrum of environmental risk factors that may be contributing towards increasing asthma morbidity, especially asthma symptoms severity in rural schoolchildren in Nigeria and to examine possible asthma underdiagnosis among this population...
January 5, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/28055280/spatiotemporal-patterns-of-childhood-asthma-hospitalization-and-utilization-in-memphis-metropolitan-area-from-2005-to-2015
#20
Tonny J Oyana, Pradeep Podila, Jagila Minso Wesley, Slawo M Lomnicki, Stephania A Cormier
OBJECTIVE: To identify key risk factors and explain spatiotemporal patterns of childhood asthma in the Memphis Metropolitan Area (MMA) over an 11-year period (2005 to 2015). We hypothesize that in the MMA region this burden is more prevalent among urban children living south, downtown, and north of Memphis than other areas. METHODS: We used a large-scale longitudinal electronic health record database from an integrated healthcare system, GIS, statistical, and space-time models to study spatiotemporal distributions of childhood asthma at census-tract level...
January 5, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
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