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Asthma genetics

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https://www.readbyqxmd.com/read/29242385/differential-regulation-of-zfp30-expression-in-murine-airway-epithelia-through-altered-binding-of-zfp148-to-rs51434084
#1
Lucas T Laudermilk, Joseph M Thomas, Samir N Kelada
Neutrophil chemotaxis to the airways is a key aspect of host response to microbes and a feature of multiple pulmonary diseases including asthma. Tight regulation of this recruitment is critical to prevent unwanted host tissue damage and inflammation. Using a mouse (Mus musculus) model of asthma applied to the Collaborative Cross (CC), we previously identified a lung gene expression quantitative trait locus (eQTL) for Zinc finger protein 30 (Zfp30) that was also a QTL for neutrophil recruitment and the hallmark neutrophil chemokine CXCL1...
December 14, 2017: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29234167/the-setdb2-locus-evidence-for-a-genetic-link-between-handedness-and-atopic-disease
#2
Bernard Crespi, Silven Read, Peter Hurd
The gene SETDB2, which mediates aspects of laterality in animal model systems, has recently been linked with human handedness as measured continuously on a scale from strong left to strong right. By contrast, it was marginally associated with a left-right dichotomous measure, and it showed no evidence of association with absolute handedness strength independent of direction. We genotyped the SETDB2 handedness-associated single nucleotide polymorphism, rs4942830, in a large healthy population likewise phenotyped for continuous, absolute, and dichotomous handedness variables...
January 2018: Heredity
https://www.readbyqxmd.com/read/29233108/association-between-risk-of-asthma-and-gene-polymorphisms-in-chi3l1-and-chia-a-systematic-meta-analysis
#3
Yanting Zhu, Xin Yan, Cui Zhai, Lan Yang, Manxiang Li
BACKGROUND: Previous studies have indicated that chitinase 3-like 1 (CHI3L1) gene rs4950928 polymorphism and acidic mammalian chitinase (AMCase or CHIA) gene rs10494132 polymorphism are associated with the risk of asthma. However, the results are inconsistent because of small sample size and varied ethnicity and age in studies. Therefore, a systematic meta-analysis was important to clarify the effect of CHI3L1 rs4950928 polymorphism and CHIA rs10494132 variant on asthma risk. METHODS: An electronic literature search was conducted to identify all the eligible studies...
December 12, 2017: BMC Pulmonary Medicine
https://www.readbyqxmd.com/read/29232822/microglia-m2a-polarization-as-potential-link-between-food-allergy-and-autism-spectrum-disorders
#4
REVIEW
Hans O Kalkman, Dominik Feuerbach
Atopic diseases are frequently co-morbid with autism spectrum disorders (ASD). Allergic responses are associated with an activation of mast cells, innate lymphoid cells, and Th2 cells. These cells produce type-2 cytokines (IL4 and IL13), which stimulate microglia and macrophages to adopt a phenotype referred to as 'alternative activation' or 'M2A'. M2A-polarized macrophages and microglia play a physiological role in tissue repair by secreting growth factors such as brain-derived neurotrophic factor (BDNF) and insulin-like growth factor-1...
December 9, 2017: Pharmaceuticals
https://www.readbyqxmd.com/read/29229094/no-genetic-association-detected-with-mepolizumab-efficacy-in-severe-asthma
#5
Lynn Condreay, Mathias Chiano, Hector Ortega, Natalie Buchan, Elizabeth Harris, Eugene R Bleecker, Philip J Thompson, Marc Humbert, Peter Gibson, Steven Yancey, Soumitra Ghosh
BACKGROUND AND OBJECTIVES: Treatment with mepolizumab, a humanized monoclonal antibody to interleukin-5, reduces the rate of asthma exacerbations and the requirement for systemic glucocorticoids while maintaining asthma control. Treatment decisions are guided by predictors of response, including blood eosinophil thresholds in patients with frequent exacerbations despite intensive anti-inflammatory and controller treatment. Identification of additional predictors of response could aid treatment decisions...
November 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/29224909/hygiene-hypothesis-in-asthma-development-is-hygiene-to-blame
#6
REVIEW
Erik van Tilburg Bernardes, Marie-Claire Arrieta
Industrialized countries have registered epidemic rates on allergic diseases, such as hay fever, asthma, eczema, and food allergies. The Hygiene Hypothesis was born from work made by Dr. David Strachan, who observed that younger siblings were less susceptible to eczema and asthma, and proposed that this was a result of increased transmission of infectious agents via unhygienic practices within a household. This initial hypothesis was then reframed as the old friends/microbiota hypothesis, implicating non-pathogenic commensal microorganisms as the source of immunomodulatory signals necessary to prevent immune-mediated chronic disorders...
December 7, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29217598/phenotypes-of-symptomatic-airways-disease-in-china-and-new-zealand
#7
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/29216871/mental-health-literacy-among-pediatric-hospital-staff-in-the-united-arab-emirates
#8
Nabeel Al-Yateem, Rachel Rossiter, Walter Robb, Alaa Ahmad, Mahmoud Saleh Elhalik, Sumaya Albloshi, Shameran Slewa-Younan
BACKGROUND: In the United Arab Emirates (UAE) 35% of the population are aged 0-24 years. A significant proportion of these young people are living with chronic conditions (e.g., asthma, type 1 diabetes, cardiac conditions, and genetically-transmitted conditions such as thalassemia and cystic fibrosis). This group has increased vulnerability to developmental delays and mental health problems, and is increasingly coming to the attention of service providers in mainstream schools, primary healthcare centers, and pediatric hospitals...
December 8, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/29211635/association-of-il-13-rs20541-and-rs1295686-variants-with-symptomatic-asthma-in-a-saudi-arabian-population
#9
Rabih Halwani, Alejandro Vazquez-Tello, Rosan Kenana, Maram Al-Otaibi, Khalid A Alhasan, Zahid Shakoor, Saleh Al-Muhsen
OBJECTIVE: Interleukin 13 (IL-13) plays a critical pro-inflammatory role in asthma. Several single nucleotide polymorphisms (SNPs) are associated with asthma susceptibility in specific populations; however, further replicative studies in other ethnic groups are mandatory. METHODS: The association between IL-13 SNPs rs762534, rs20541, rs1295686, and rs1800925 (risk alleles A, A, T, and A, respectively) and asthma predisposition in a Saudi Arabian cohort was examined via a case-control cross-sectional study...
December 6, 2017: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/29198905/the-microbiota-regulates-immunity-and-immunologic-diseases-in-dogs-and-cats
#10
REVIEW
Ian R Tizard, Sydney W Jones
The complex commensal microbiota found on body surfaces controls immune responses and the development of allergic and inflammatory diseases. New genetic technologies permit investigators to determine the composition of the complex microbial populations found on these surfaces. Changes in the microbiota (dysbiosis) as a result of antibiotic use, diet, or other factors thus influence the development of many diseases in the dog and cat. The most important of these include chronic gastrointestinal disease; respiratory allergies, such as asthma; skin diseases, especially atopic dermatitis; and some autoimmune diseases...
November 29, 2017: Veterinary Clinics of North America. Small Animal Practice
https://www.readbyqxmd.com/read/29198451/development-of-the-microbiota-in-infants-and-its-role-in-maturation-of-the-gut-mucosa-and-the-immune-system
#11
Cecilia Ximenez, Javier Torres
Dysbiosis of the gut microbiota has been associated with increasing numbers of diseases, including obesity, diabetes, inflammatory bowel disease, asthma, allergy, cancer and even neurologic or behavioral disorders. The other side of the coin is that a healthy microbiota leads to a healthy human development, to a mature and well trained immune system and to an efficient metabolic machinery. What we have learned in adults is in the end the result of a good start, a programmed, healthy development of the microbiota that must occur in the early years of life, probably even starting during the fetal stage...
November 30, 2017: Archives of Medical Research
https://www.readbyqxmd.com/read/29177959/ambient-air-pollution-and-biomarkers-of-health-effect
#12
Di Yang, Xuan Yang, Furong Deng, Xinbiao Guo
Recently, the air pollution situation of our country is very serious along with the development of urbanization and industrialization. Studies indicate that the exposure of air pollution can cause a rise of incidence and mortality of many diseases, such as chronic obstructive pulmonary disease (COPD), asthma, myocardial infarction, and so on. However, there is now growing evidence showing that significant air pollution exposures are associated with early biomarkers in various systems of the body. In order to better prevent and control the damage effect of air pollution, this article summarizes comprehensively epidemiological studies about the bad effects on the biomarkers of respiratory system, cardiovascular system, and genetic and epigenetic system exposure to ambient air pollution...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29177020/epigenetic-regulation-of-axl-and-risk-of-childhood-asthma-symptoms
#13
Lu Gao, Joshua Millstein, Kimberly D Siegmund, Louis Dubeau, Rachel Maguire, Frank D Gilliland, Susan K Murphy, Cathrine Hoyo, Carrie V Breton
Background: AXL is one of the TAM (TYRO3, AXL and MERTK) receptor tyrosine kinases and may affect numerous immune-related health conditions. However, the role for AXL in asthma, including its epigenetic regulation, has not been extensively studied. Methods: We investigated the association between AXL DNA methylation at birth and risk of childhood asthma symptoms at age 6 years. DNA methylation of multiple CpG loci across the regulatory regions of AXL was measured in newborn bloodspots using the Illumina HumanMethylation450 array on a subset of 246 children from the Children's Health Study (CHS)...
2017: Clinical Epigenetics
https://www.readbyqxmd.com/read/29172674/single-nucleotide-polymorphisms-in-tnf-are-associated-with-susceptibility-to-aspirin-exacerbated-respiratory-disease-but-not-to-cytokine-levels-a-study-in-mexican-mestizo-population
#14
Gandhi F Pavón-Romero, Juan M Reséndiz-Hernández, Fernando Ramírez-Jiménez, Gloria Pérez-Rubio, Ángel Camarena, Luis M Terán, Ramcés Falfán-Valencia
AIM: To evaluate the association of three single nucleotide polymorphisms in TNF and one in LTA in Mexican patients with aspirin-exacerbated respiratory disease (AERD) and the correlation of those single nucleotide polymorphisms with serum levels of TNF-α. PATIENTS & METHODS: Case-control study including 133 patients with AERD, 135 patients with asthma (aspirin-tolerant asthmatics) and 182 healthy subjects. RESULTS: GA genotype of rs1800629 in TNF was found to be associated with the risk of developing AERD (p < 0...
November 27, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/29168291/the-col5a3-and-mmp9-genes-interact-in-eczema-susceptibility
#15
Patricia Margaritte-Jeannin, Marie-Claude Babron, Catherine Laprise, Nolwenn Lavielle, Chloé Sarnowski, Myriam Brossard, Miriam Moffatt, Valérie Gagné-Ouellet, Adrien Etcheto, Mark Lathrop, Jocelyne Just, William O Cookson, Emmanuelle Bouzigon, Florence Demenais, Marie-Hélène Dizier
BACKGROUND: Genetic studies of eczema have identified many genes, which explain only 14% of the heritability. Missing heritability may be partly due to ignored Gene-Gene (G-G) interactions. OBJECTIVE: Our aim was to detect new interacting genes involved in eczema. METHODS: The search for G-G interaction in eczema was conducted using a two-step approach, which included as a first step, a biological selection of genes, which are involved either in the skin or epidermis development or in the collagen metabolism, and as a second-step, an interaction analysis of the selected genes...
November 23, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29168228/trajectory-of-spirometric-and-exhaled-nitric-oxide-measurements-in-chinese-schoolchildren-with-asthma
#16
Ting F Leung, Man F Tang, Agnes S Y Leung, Wilson W S Tam, Hing Y Sy, Gary W K Wong
BACKGROUND: Lung function growth occurs in most asthmatic children. A subgroup has subnormal lung function trajectory, but such data is limited in children. This prospective study characterized longitudinal changes of spirometric indices and fractional exhaled nitric oxide level (FeNO) among asthmatic children and identified their genetic and environmental determinants. METHODS: Chinese asthmatic children recruited from paediatric clinics underwent 5-year follow-up for pre-bronchodilator spirometric indices and FeNO...
November 23, 2017: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/29165754/current-views-of-pediatric-asthma
#17
C-X Qu, Z-K Zhang
Childhood asthma is influenced by multiple factors including genetic, socioeconomic, socio demographic and environmental factors. The symptoms of childhood asthma are observed to be variable. Some studies reported that asthma prevalence is disproportionately high among socially disadvantaged children. On the other hand, some reports found weak or no association between social disadvantage and childhood asthma. Recent literature showed that growth of health-related quality of life (HRQOL) instruments in the management of childhood asthma...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29165157/the-hokkaido-birth-cohort-study-on-environment-and-children-s-health-cohort-profile-updated-2017
#18
Reiko Kishi, Atsuko Araki, Machiko Minatoya, Tomoyuki Hanaoka, Chihiro Miyashita, Sachiko Itoh, Sumitaka Kobayashi, Yu Ait Bamai, Keiko Yamazaki, Ryu Miura, Naomi Tamura, Kumiko Ito, Houman Goudarzi
The Hokkaido Study on Environment and Children's Health is an ongoing study consisting of two birth cohorts of different population sizes: the Sapporo cohort and the Hokkaido cohort. Our primary study goals are (1) to examine the effects of low-level environmental chemical exposures on birth outcomes, including birth defects and growth retardation; (2) to follow the development of allergies, infectious diseases, and neurobehavioral developmental disorders and perform a longitudinal observation of child development; (3) to identify high-risk groups based on genetic susceptibility to environmental chemicals; and (4) to identify the additive effects of various chemicals, including tobacco smoking...
May 18, 2017: Environmental Health and Preventive Medicine
https://www.readbyqxmd.com/read/29163443/parasite-derived-proteins-for-the-treatment-of-allergies-and-autoimmune-diseases
#19
REVIEW
Zhenyu Wu, Lifu Wang, Yanlai Tang, Xi Sun
The morbidity associated with atopic diseases and immune dysregulation disorders such as asthma, food allergies, multiple sclerosis, atopic dermatitis, type 1 diabetes mellitus, and inflammatory bowel disease has been increasing all around the world over the past few decades. Although the roles of non-biological environmental factors and genetic factors in the etiopathology have been particularly emphasized, they do not fully explain the increase; for example, genetic factors in a population change very gradually...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29162372/genetics-environment-and-asthma-associated-with-celiac-disease-in-the-extended-family-of-an-affected-child
#20
R Sigala-Robles, S V Aguayo-Patrón, A M Calderón de la Barca
INTRODUCTION: Celiac disease (CD) is an autoimmune enteropathy associated with gluten ingestion. In extended families of celiac patients that live in close proximity of one another, shared genetic and environmental factors can predispose them to CD. AIM: The aim of this study was to provide evidence about the genetic and environmental factors involved in the development of CD in the extended family of a pediatric patient. METHODS: The medical history, environmental conditions, and participant weight, height, and peripheral blood samples were evaluated...
November 18, 2017: Revista de Gastroenterología de México
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