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Asthma cluster analysis

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https://www.readbyqxmd.com/read/29420086/a-review-of-obesity-and-asthma-across-the-life-span
#1
Faiza Khalid, Fernando Holguin
OBJECTIVE: This literature review aims to compare obese-asthmatic adults and children, and to characterize differences and similarities between the two subgroups from epidemiological, demographical, phenotypical, and physiological perspectives. METHODS: Literature search was conducted using Pubmed database with "obesity," "asthma," "epidemiology," "cluster analysis," "demography," "mechanics," and ''FeNO'' as search terms. METHODS: Articles investigating epidemiological, demographic, phenotypical variation, and mechanical aspects of breathing specifically in obese asthmatics were identified...
February 8, 2018: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29385434/importance-of-comorbidities-in-the-treatment-of-primary-care-patients-with-heart-failure-baseline-results-of-the-observational-recode-hf-study
#2
Marion Eisele, Winfried Adam, Anja Rakebrandt, Sigrid Boczor, Eva Blozik, Jens-Martin Träder, Stefan Störk, Christoph Herrmann-Lingen, Martin Scherer
Background: Both non-cardiac and cardiac comorbidities are related to the prognosis of chronic heart failure (HF), but so far little is known about the impact of comorbidities on treatment difficulties in routine care. Objectives: To investigate which comorbidities are associated with treatment difficulties in primary care. We hypothesized that somatic comorbidities as well as psychosocial distress are associated with treatment difficulties. Methods: In this baseline analysis of data of the observational RECODE-HF study, HF patients were recruited via primary care practices in two German sites...
January 29, 2018: Family Practice
https://www.readbyqxmd.com/read/29356659/proximity-to-two-main-sources-of-industrial-outdoor-air-pollution-and-emergency-department-visits-for-childhood-asthma-in-edmonton-canada
#3
Laura A Rodriguez-Villamizar, Rhonda J Rosychuk, Alvaro Osornio-Vargas, Paul J Villeneuve, Brian H Rowe
OBJECTIVE: Children are recognized to be more susceptible than healthy adults to the effects of air pollution; however, relatively few Canadian studies of children have focused on industrial emissions. We conducted a spatial cross-sectional study to explore associations between emergency department (ED) visits for childhood asthma and residential proximity to two industrial sources of air pollution (coal-fired power plant and petrochemical industry) in Edmonton, Canada. METHODS: Using administrative health care data for Alberta between 2004 and 2010, we conducted a spatial analysis of disease clusters of count data around these two industrial sources...
January 22, 2018: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
https://www.readbyqxmd.com/read/29326334/clinical-and-inflammatory-phenotyping-by-breathomics-in-chronic-airway-diseases-irrespective-of-the-diagnostic-label
#4
Rianne de Vries, Yennece W F Dagelet, Pien Spoor, Erik Snoey, Patrick M C Jak, Paul Brinkman, Erica Dijkers, Simon K Bootsma, Fred Elskamp, Frans H C de Jongh, Eric G Haarman, Johannes C C M In 't Veen, Anke-Hilse Maitland-van der Zee, Peter J Sterk
Asthma and chronic obstructive pulmonary disease (COPD) are complex and overlapping diseases that include inflammatory phenotypes. Novel anti-eosinophilic/anti-neutrophilic strategies demand rapid inflammatory phenotyping, which might be accessible from exhaled breath.Our objective was to capture clinical/inflammatory phenotypes in patients with chronic airway disease using an electronic nose (eNose) in a training and validation set.This was a multicentre cross-sectional study in which exhaled breath from asthma and COPD patients (n=435; training n=321 and validation n=114) was analysed using eNose technology...
January 2018: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29325544/prevalence-and-associated-factors-of-wheezing-illnesses-of-children-aged-three-to-five-years-living-in-under-served-settlements-of-the-colombo-municipal-council-in-sri-lanka-a-cross-sectional-study
#5
Ruwanika Seneviratne, Nalika S Gunawardena
BACKGROUND: A rising trend in Sri Lanka for asthma and wheezing illness is observed with higher morbidity in younger children and a paucity of related research. 'Under-served settlements' (USS) of Colombo Municipal Council (CMC) have poor living environments conducive to childhood wheezing. The objective was to describe the prevalence and associated factors of wheezing illnesses of three to five year old children living in low-income settlements in CMC. METHODS: A cross-sectional study was conducted on 460 three to five year old children and their caregivers using cluster sampling among residents of two randomly selected USSs of CMC...
January 11, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29324919/synchrotron-fourier-transform-infrared-maps-of-ovalbumin-induced-murine-chronic-allergic-airways-disease-correlation-with-conventional-histology
#6
Nadia Mazarakis, Jitraporn Vongsvivut, Keith R Bambery, Kenneth J Snibson, Simon G Royce, Tom C Karagiannis
Asthma is a chronic respiratory disease characterised by airway inflammation, remodeling and hyperresponsiveness. The ability to replicate these asthma traits in the well-established ovalbumin induced chronic model of allergic airways disease is an important tool for asthma research and preclinical drug development. Here, spectra derived from focal plane array and Synchrotron-Fourier transform infrared maps were used to analyse biochemical changes in lung tissue from an ovalbumin-induced murine chronic allergic airways disease model...
September 2017: Hellenic Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/29279060/heterogeneity-of-asthma-and-the-risk-of-celiac-disease-in-children
#7
Bhavisha Patel, Chung-Il Wi, M Earth Hasassri, Rohit Divekar, Imad Absah, Eyad Almallouhi, Euijung Ryu, Katherine King, Young J Juhn
BACKGROUND: Although human leukocyte antigen (HLA)-DR and HLA-DQ genes and gluten play crucial roles in developing celiac disease (CD), most patients with these risk factors still do not develop CD, which indicates additional unrecognized risk factors. OBJECTIVE: To determine the association between asthma and the risk of CD in children. METHODS: We conducted a population-based retrospective case-control study in children who resided in Olmsted County, Minnesota...
January 1, 2018: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/29240264/longitudinal-vitamin-d-deficiency-is-inversely-related-to-mite-sensitization-in-early-childhood
#8
Chih-Yung Chiu, Kuan-Wen Su, Ming-Han Tsai, Man-Chin Hua, Sui-Ling Liao, Shen-Hao Lai, Li-Chen Chen, Tsung-Chieh Yao, Kuo-Wei Yeh, Jing-Long Huang
BACKGROUND: There are few studies addressing the longitudinal analysis of vitamin D deficiency and its impact to the development of atopic diseases in early childhood. METHODS: We investigated 155 children who regularly followed up at our clinic for 5 years as subjects enrolled in a birth cohort study. The pattern of vitamin D levels from birth to 5 years of age was clustered using K-means method in R software. Absolute eosinophil count (AEC), total serum and specific immunoglobulin E antibodies against food (egg white, milk, and wheat) and inhalant allergens (D...
December 14, 2017: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/29221262/differences-in-airway-remodeling-and-airway-inflammation-among-moderate-severe-asthma-clinical-phenotypes
#9
Wen-Jing Ye, Wei-Guo Xu, Xue-Jun Guo, Feng-Feng Han, Juan Peng, Xiao-Ming Li, Wen-Bin Guan, Li-Wei Yu, Jin-Yuan Sun, Zhi-Lei Cui, Lin Song, Yue Zhang, Yan-Min Wang, Tian-Yun Yang, Xia-Hui Ge, Di Yao, Song Liu
Background: To identify asthma clinical phenotypes using cluster analysis and improve our understanding of heterogeneity in asthma. Methods: Clustering approaches were applied to 203 patients who were diagnosed with asthma in XinHua Hospital (January 2012 to December 2015). One hundred and twenty patients underwent multi-slice spiral computed tomography (MSCT) examination and 30 underwent bronchial mucosal biopsy for evaluation of airway remodeling and airway inflammation among the phenotypes...
September 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29217598/phenotypes-of-symptomatic-airways-disease-in-china-and-new-zealand
#10
James Fingleton, Kewu Huang, Mark Weatherall, Yanfei Guo, Stefan Ivanov, Piet Bruijnzeel, Hong Zhang, Wei Wang, Richard Beasley, Chen Wang
It is uncertain whether phenotypes of asthma and chronic obstructive pulmonary disease (COPD) vary between populations with different genetic and environmental characteristics. Here, our objective was to compare the phenotypes of airways disease in two separate populations.This was a cross-sectional observational study in adult populations from New Zealand and China. Participants aged 40-75 years who reported wheeze and breathlessness in the last 12 months were randomly selected from the general population and underwent detailed characterisation...
December 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/29211547/prenatal-exposure-to-polychlorinated-biphenyls-and-asthma-eczema-hay-fever-and-frequent-ear-infections
#11
Margaret Parker-Lalomio, Kenneth McCann, Julie Piorkowski, Sally Freels, Victoria W Persky
OBJECTIVES: The effects of prenatal exposure to Polychlorinated biphenyls (PCBs) on the development of asthma, frequent ear infections, and eczema/hay fever are not well understood. We aim to investigate associations between prenatal PCB exposure and these health outcomes in the offspring of women who worked at the LaSalle Electrical Utilities Company (EUC). METHODS: A retrospective cohort with at least one live birth and known employment time at EUC was eligible for this analysis...
December 6, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29206834/influence-of-socioeconomic-status-on-the-whole-blood-transcriptome-in-african-americans
#12
Amadou Gaye, Gary H Gibbons, Charles Barry, Rakale Quarells, Sharon K Davis
BACKGROUND: The correlation between low socioeconomic status (SES) and poor health outcome or higher risk of disease has been consistently reported by many epidemiological studies across various race/ancestry groups. However, the biological mechanisms linking low SES to disease and/or disease risk factors are not well understood and remain relatively under-studied. The analysis of the blood transcriptome is a promising window for elucidating how social and environmental factors influence the molecular networks governing health and disease...
2017: PloS One
https://www.readbyqxmd.com/read/29200133/toluene-diisocyanate-exposure-exposure-assessment-and-development-of-cross-facility-similar-exposure-groups-among-toluene-diisocyanate-production-plants
#13
Paul J Middendorf, William Miller, Tim Feeley, Brent Doney
OBJECTIVE: The objective of this study was to characterize workplace toluene diisocyanate (TDI) exposures using standardized industrial hygiene exposure assessment procedures for use in a prospective epidemiologic study of occupational asthma. METHODS: Over 2300 representative routine full shift time-weighted average (TWA) and short-term high potential exposure tasks (HPETs) air samples in groups across three TDI plants were collected over a nearly 7-year period...
December 2017: Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/29197099/identification-of-patterns-of-factors-preceding-severe-or-life-threating-asthma-exacerbations-in-a-nationwide-study
#14
H Tanaka, E Nakatani, Y Fukutom, K Sekiya, H Kaneda, M Iikura, M Yoshida, K Takahashi, K Tomii, M Nishikawa, N Kaneko, Y Sugino, M Shinkai, T Ueda, Y Tanikawa, T Shirai, M Hirabayashi, T Aoki, T Kato, K Iizuka, M Fujii, M Taniguchi
BACKGROUND: Reducing near-fatal asthma exacerbations is a critical problem in asthma management. OBJECTIVES: To determine patterns of factors preceding asthma exacerbations in a real-world setting. METHODS: In a nationwide prospective study of 190 patients who had experienced near-fatal asthma exacerbation, cluster analysis was performed using asthma symptoms over the two-week period before admission. RESULTS: Three distinct clusters of symptoms were defined employing the self-reporting of a visual analogue scale...
December 1, 2017: Allergy
https://www.readbyqxmd.com/read/29170004/identifying-patient-attitudinal-clusters-associated-with-asthma-control-the-european-realise-survey
#15
Thys van der Molen, Monica Fletcher, David Price
BACKGROUND: Asthma is a highly heterogeneous disease that can be classified into different clinical phenotypes, and treatment may be tailored accordingly. However, factors beyond purely clinical traits, such as patient attitudes and behaviors, can also have a marked impact on treatment outcomes. OBJECTIVE: The objective of this study was to further analyze data from the REcognise Asthma and LInk to Symptoms and Experience (REALISE) Europe survey, to identify distinct patient groups sharing common attitudes toward asthma and its management...
November 12, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29133218/cluster-analysis-identifies-3-phenotypes-within-allergic-asthma
#16
María Paz Sendín-Hernández, Carmelo Ávila-Zarza, Catalina Sanz, Asunción García-Sánchez, Elena Marcos-Vadillo, Francisco J Muñoz-Bellido, Elena Laffond, Christian Domingo, María Isidoro-García, Ignacio Dávila
BACKGROUND: Asthma is a heterogeneous chronic disease with different clinical expressions and responses to treatment. In recent years, several unbiased approaches based on clinical, physiological, and molecular features have described several phenotypes of asthma. Some phenotypes are allergic, but little is known about whether these phenotypes can be further subdivided. OBJECTIVE: We aimed to phenotype patients with allergic asthma using an unbiased approach based on multivariate classification techniques (unsupervised hierarchical cluster analysis)...
November 10, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29131887/effect-of-an-intervention-to-promote-breastfeeding-on-asthma-lung-function-and-atopic-eczema-at-age-16-years-follow-up-of-the-probit-randomized-trial
#17
Carsten Flohr, A John Henderson, Michael S Kramer, Rita Patel, Jennifer Thompson, Sheryl L Rifas-Shiman, Seungmi Yang, Konstantin Vilchuck, Natalia Bogdanovich, Mikhail Hameza, Richard M Martin, Emily Oken
Importance: Atopic diseases, including asthma and atopic eczema, are the most common chronic conditions of childhood. Objective: To investigate whether an intervention to promote prolonged and exclusive breastfeeding protects against asthma, atopic eczema, and low lung function in adolescence. Design, Setting, and Participants: Follow-up of the Promotion of Breastfeeding Intervention Trial (PROBIT), a cluster randomized trial in 30 Belarusian maternity hospitals and affiliated polyclinics; recruitment of 17 046 healthy term infants took place from June 15, 1996, to December 31, 1997...
January 2, 2018: JAMA Pediatrics
https://www.readbyqxmd.com/read/29100865/clinical-phenotypes-of-nasal-polyps-and-comorbid-asthma-based-on-cluster-analysis-of-disease-history
#18
Dawei Wu, Benjamin S Bleier, Lun Li, Xiaojun Zhan, Lichuan Zhang, Qianwen Lv, Jianting Wang, Yongxiang Wei
BACKGROUND: Nasal polyps and comorbid asthma (NPcA) is a common united airway disease and is highly heterogeneous with respect to clinical, physiologic, and pathologic parameters. The clinical phenotypes of NPcA are poorly understood. OBJECTIVE: We sought to explore clinical phenotypes in patients with NPcA. METHODS: Patients first diagnosed with NPcA were recruited from Rhinological Clinics and Respiratory Clinics. We clustered patients with NPcA based on parameters regarding natural courses and demographic characteristics...
October 31, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29082708/-compatible-principles-of-xiebai-decoction-family-based-on-complex-network-analysis
#19
Peng-Li Wang, Yu-Hao Fan, Xin-Sheng Fan, Chong-Jun Wang
In order to explore the compatible principles of Xiebai decoction family, formulae from ancient and modern Xiebai decoction family were collected and sorted in this study. The compatible characteristics, core herbs, as well as the relativity of herbs nature in Xiebai decoction family were analyzed based on scale free network and other data-mining methods such as association rules, clustering analysis and correspondence analysis. The scale free network results showed that in Xiebai decoction family, Mori Cortex-Lycii Cortex-Glycyrrhizae Radix et Rhizoma was used as the core compatible group and formed the complicated compatible network with other additional herbs; association rules results showed that the core herbs in such formulae included Mori Cortex, Lycii Cortex, Glycyrrhizae Radix et Rhizoma, scutellaria root, Platycodon root, Anemarrhena, and almond, which formed corresponding herbal pairs and compatibility; clustering analysis showed that Mori Cortex was the core herb in Xiebai decoction family, and Mori Cortex-Lycii Cortex-Glycyrrhizae Radix et Rhizoma was its main combination unit, which was always compatible with herbs of clearing heat, reducing phlegm, supplementing Qi and nourishing Yin to form the series prescriptions...
May 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/29075476/phylogeographic-and-phylogenetic-analysis-for-tripterygium-species-delimitation
#20
Baowei Ma, Tianyuan Hu, Pei Li, Qingjun Yuan, Zhaoshou Lin, Yuhe Tu, Jia Li, Xianan Zhang, Xiaoyi Wu, Xiujuan Wang, Luqi Huang, Wei Gao
Tripterygium wilfordii (Celastraceae) is a traditional Chinese medicine; and the dried root and rhizome constitute the main officinal parts. Tripterygium wilfordii has been identified as a potential candidate for the treatment of systemic lupus erythematosus, rheumatoid arthritis, nephritis, asthma, leprosy, and cancer. The phylogenetic relationships within the Tripterygium genus are ambiguous; thus, our aim is to clarify the relationships within this genus using phylogeographic and phylogenetic analyses. Here, we first sequenced three plastid DNA regions (i...
October 2017: Ecology and Evolution
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