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Asthma in children

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https://www.readbyqxmd.com/read/28102830/can-exhaled-volatile-organic-compounds-predict-asthma-exacerbations-in-children
#1
Dillys van Vliet, Agnieszka Smolinska, Quirijn Jöbsis, Jean Muris, Philippe Rosias, Jan Dallinga, Edward Dompeling, Frederik van Schooten
Background Asthma control falls short of current goals of asthma management guidelines. Non-invasive monitoring of airway inflammation may help to improve the level of asthma control in children. Aim 1) To identify a set of exhaled volatile organic compounds (VOCs) that is most predictive for an asthma exacerbation in children. 2) To determine the chemical background of predictive VOCs. Methods In an one-year prospective observational study, 96 asthmatic children were studied . At clinical visits with an interval of 2 months, asthma control, fractional exhaled nitric oxide, lung function (FEV1, FEV1/VC) and VOCs in exhaled breath were determined by means of gas chromatography time-of-flight mass spectrometry...
January 19, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28102717/seasonal-and-geographic-variation-in-the-incidence-of-asthma-exacerbations-in-the-united-states
#2
M Gerhardsson de Verdier, Per Gustafson, Christopher McCrae, Staffan Edsbäcker, Neil Johnston
BACKGROUND: Exacerbations drive the burden of asthma and lead to significant morbidity and consumption of healthcare resources. Many prior studies of the epidemiology of asthma exacerbations have relied upon data from hospital care. OBJECTIVE: To determine US patterns of geographic and seasonal variation of asthma exacerbations being defined as asthma episodes requiring hospital care and/or a prescription for oral steroid. METHODS: The study was a retrospective observational cohort study using administrative claims data for insured individuals from the HealthCore Integrated Research Database, including around 43 million members in US...
January 19, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28100615/rhinovirus-c-asthma-and-cell-surface-expression-of-virus-receptor-cdhr3
#3
Ann C Palmenberg
Human rhinoviruses of the A, B, and C species are defined agents of the common cold. But more than that, the RV-A and RV-C are the dominant cause of hospitalization-category infections in young children, especially those with asthma. The RV-C use of cadherin-related family member 3 (CDHR3) as its cellular receptor, creates a direct phenotypic link between human genetics ("G" vs "A" alleles cause Cys529 vs Tyr529 protein variants) and the efficiency with which RV-C can infect cells. With a lower cell surface display density, the human-specific Cys529 variant apparently confers partial protection from the severest virus-induced asthma episodes...
January 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28100614/human-rhinovirus-diversity-and-evolution-how-strange-the-change-from-major-to-minor
#4
Nicole Lewis-Rogers, Jon Seger, Frederick R Adler
: Rhinoviruses are the most common cause of the common cold. Their many distinct lineages fall into "major" and "minor" groups that use different cell-surface receptors to enter host cells. Minor-group rhinoviruses are more immunogenic in laboratory studies, although their patterns of transmission and their cold symptoms are broadly similar to those of the major group. Here we present evolutionary evidence that minor-group viruses are also more immunogenic in humans. A key finding is that rates of amino-acid substitution at exposed sites in the capsid proteins VP2, VP3 and VP1 tend to be elevated in minor-group relative to major-group viruses, while rates at buried sites show no consistent differences...
January 18, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28100322/-association-between-risk-factors-during-maternal-pregnancy-and-the-neonatal-period-and-childhood-bronchial-asthma
#5
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/28096296/a-critical-asthma-standardized-clinical-and-management-plan-reduces-duration-of-critical-asthma-therapy
#6
Jackson Wong, Michael S D Agus, Dionne A Graham, Elliot Melendez
BACKGROUND AND OBJECTIVE: Reduction of critical asthma management time can reduce intensive care utilization. The goal of this study was to determine whether a Critical Asthma Standardized Clinical Assessment and Management Plan (SCAMP) can decrease length of critical asthma management time. METHODS: This retrospective study compared critical asthma management times in children managed before and after implementation of a Critical Asthma SCAMP. The SCAMP used an asthma severity score management scheme to guide stepwise escalation and weaning of therapies...
January 17, 2017: Hospital Pediatrics
https://www.readbyqxmd.com/read/28095117/parents-asthma-information-needs-and-preferences-for-school-based-asthma-support
#7
Noha Abdullah Al Aloola, Lisa Nissen, Huda Abdullaziz Alewairdhi, Nawaf Al Faryan, Bandana Saini
Objectives This study sought to investigate parents' needs and preferences for school-based asthma support in Saudi Arabian primary schools. Methods Semi-structured qualitative interviews were conducted in the period between November 2015 and February 2016, with a convenience sample that comprised Saudi parents and carers of children with asthma. Recruitment of participants was primarily driven through Saudi primary schools; passive snowballing and social networks were used to boost participation rates further...
January 17, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28095080/missed-opportunities-to-transition-from-nebulizers-to-inhalers-during-hospitalization-for-acute-asthma-a-multi-center-observational-study
#8
Valerie G Press, Kohei Hasegawa, Jonathan Heidt, Jane C Bittner, Carlos A Camargo
OBJECTIVE: Hospitalizations for acute asthma are thought to be highly preventable through the use of efficacious medications, though many patients have poor metered-dose inhaler (MDI) technique, lessening these medications' real-world effectiveness. Teaching MDI technique during hospitalization may therefore lead to improved outcomes. However, MDIs may be underutilized to deliver short-acting β-agonists in the inpatient setting, despite equivalent efficacy to nebulizer delivery. We sought to characterize delivery methods of short-acting beta-agonist (SABA) therapy among hospitalized patients with acute asthma to understand if there are missed opportunities for self-management education...
January 17, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28095072/parental-coping-depressive-symptoms-and-children-s-asthma-control-and-school-attendance-in-low-income-racially-and-ethnically-diverse-urban-families
#9
Erin M Rodríguez, Harsha Kumar, Juliana Alba-Suarez, Lisa Sánchez-Johnsen
OBJECTIVE: Low-income urban children of color are at elevated risk for poor asthma control. This cross-sectional study examined associations among parents' coping (primary control, secondary control, and disengagement), parental depressive symptoms, and children's asthma outcomes (asthma control and school attendance) in a predominantly low-income, racially/ethnically diverse sample of families. METHODS: Parents (N = 78; 90% female) of children (33% female; 46% Black; 38% Latino) ages 5 to 17 years old (M = 9...
January 17, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/28093030/caregiver-asthma-in-urban-families
#10
Robin S Everhart, Sarah Miller, Gillian G Leibach, Alexandra L Dahl, Daphne Koinis-Mitchell
Asthma is a significant contributor to missed school days, especially for children living in urban settings. This preliminary study examined the impact of caregiver asthma on school absenteeism in a sample of 102 urban children with asthma from African American, Latino, and non-Latino White backgrounds. Caregivers and children participated in a single research session; 32 caregivers had asthma. Children of caregivers with asthma missed more days of school than children whose caregivers did not have asthma (3...
January 1, 2017: Journal of School Nursing: the Official Publication of the National Association of School Nurses
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
#11
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/28092287/current-and-future-management-of-the-young-child-with-early-onset-wheezing
#12
Allison J Burbank, Stanley J Szefler
PURPOSE OF REVIEW: In this review, we discuss current thinking in relation to available guidelines for the care of preschool-aged children with recurrent wheezing, while highlighting the gaps in our knowledge and discussing changes that could occur over the next 5 years. RECENT FINDINGS: The Asthma Predictive Index as well as allergen-specific IgE, peripheral eosinophil count and exhaled nitric oxide are perhaps underutilized sources of information that can assist in predicting progression to asthma and response to therapies...
January 13, 2017: Current Opinion in Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28092107/rsv-associated-hospitalizations-in-children-in-karachi-pakistan-implications-for-vaccine-prevention-strategies
#13
Asad Ali, Mohammad Tahir Yousafzai, Rabbia Waris, Fatima Jafri, Fatima Aziz, Imran Naeem Abbasi, Anita Zaidi
Major progress is being made in vaccines against Respiratory Syncytial Virus (RSV), with multiple vaccine candidates currently in the clinical phase of development. Making an investment case for public sector financing of RSV vaccine will require estimation of burden, cost-effectiveness and impact. The aim of this study is to determine the proportion, age distribution and clinical spectrum of RSV associated hospitalizations in children in Karachi, Pakistan. A three years prospective study was conducted at the Aga Khan University hospital in Karachi, a city of 20 million in south Pakistan, from August 2009 to June 2012...
January 16, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28091681/microbial-rrna-sequencing-analysis-of-evaporative-cooler-indoor-environments-located-in-the-great-basin-desert-region-of-the-united-states
#14
Angela R Lemons, Mary Beth Hogan, Ruth A Gault, Kathleen Holland, Edward Sobek, Kimberly A Olsen-Wilson, Yeonmi Park, Ju-Hyeong Park, Ja Kook Gu, Michael L Kashon, Brett J Green
Recent studies conducted in the Great Basin Desert region of the United States have shown that skin test reactivity to fungal and dust mite allergens are increased in children with asthma or allergy living in homes with evaporative coolers (EC). The objective of this study was to determine if the increased humidity previously reported in EC homes leads to varying microbial populations compared to homes with air conditioners (AC). Children with physician-diagnosed allergic rhinitis living in EC or AC environments were recruited into the study...
January 16, 2017: Environmental Science. Processes & Impacts
https://www.readbyqxmd.com/read/28091126/association-between-perfluoroalkyl-substance-exposure-and-asthma-and-allergic-disease-in-children-as-modified-by-mmr-vaccination
#15
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
#16
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/28089059/management-of-hospitalized-asthmatic-children-before-transport
#17
Brande Mazzeo, Rami Bzeih, Robert Schultz, Melissa Tavolieri, Alicia Fraser, Sabrina M Heidemann
Asthmatic children are at risk for respiratory failure and should be appropriately treated before transport. The objectives were to find out if the Pediatric Advanced Life Support guidelines for asthma treatment were followed in the emergency department (ED); to determine if additional treatment during transport or within the first 2 hours of admission was needed; and to compare the management of intubated asthmatics by the ED, transport team, and the intensive care unit (ICU) physician. The records for children diagnosed with acute asthma over 7 years who were transported by the intensive care transport team were reviewed...
January 2017: Air Medical Journal
https://www.readbyqxmd.com/read/28088397/antibiotics-in-pregnancy-increase-children-s-risk-of-otitis-media-and-ventilation-tubes
#18
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
#19
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/28081237/co-occurrence-of-asthma-and-nephrolithiasis-in-children
#20
Ganesh K Kartha, Ina Li, Suzy Comhair, Serpil C Erzurum, Manoj Monga
It has been proposed that epithelial dysfunction and inflammation may predispose patients to kidney stone formation. Asthma is another chronic condition related to epithelial dysfunction and inflammation. We hypothesized that pediatric patients with asthma would have an increased prevalence of nephrolithiasis. Furthermore, we investigated if asthma patients with nephrolithiasis have clinical characteristics and urine profiles that point to mechanisms of stone formation. We evaluated 865 pediatric patients who had a diagnosis of nephrolithiasis...
2017: PloS One
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