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https://www.readbyqxmd.com/read/28566688/sublingual-house-dust-mite-immunotherapy-has-no-impact-on-decrease-of-circulating-erythrocytes-upon-airway-allergen-challenge-in-allergic-rhinitis
#1
Galateja Jordakieva, Michael Kundi, Patrick Lemell, René Zieglmayer, Petra Zieglmayer, Jasminka Godnic-Cvar, Erika Jensen-Jarolim
House dust mite (HDM) allergy is a predominant cause for perennial allergic rhinitis (AR) in Europe. We recently reported that circulating erythrocyte numbers decrease after airway allergen challenge in a murine asthma model and in grass-pollen sensitized AR subjects. Consequently, we aimed to evaluate these findings in HDM sensitized AR subjects and the influence of preceding allergen immunotherapy. Seventy-seven (age 26.8 ± 7.3 years; 54.5% female) HDM-allergic rhinitis subjects previously enrolled in a randomized, monocentric sublingual immunotherapy (SLIT) trial at the Vienna Challenge Chamber (VCC) were included...
May 31, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28542337/changes-in-hospitalizations-for-chronic-respiratory-diseases-after-two-successive-smoking-bans-in-spain
#2
Iñaki Galán, Lorena Simón, Elena Boldo, Cristina Ortiz, Rafael Fernández-Cuenca, Cristina Linares, María José Medrano, Roberto Pastor-Barriuso
BACKGROUND: Existing evidence on the effects of smoke-free policies on respiratory diseases is scarce and inconclusive. Spain enacted two consecutive smoke-free regulations: a partial ban in 2006 and a comprehensive ban in 2011. We estimated their impact on hospital admissions via emergency departments for chronic obstructive pulmonary disease (COPD) and asthma. METHODS: Data for COPD (ICD-9 490-492, 494-496) came from 2003-2012 hospital admission records from the fourteen largest provinces of Spain and from five provinces for asthma (ICD-9 493)...
2017: PloS One
https://www.readbyqxmd.com/read/28510185/morphological-physiological-cytological-and-phytochemical-studies-in-diploid-and-colchicine-induced-tetraploid-plants-of-fagopyrum-tataricum-l-gaertn
#3
Lin-Jiao Wang, Mao-Yin Sheng, Pei-Cai Wen, Jia-Ying Du
BACKGROUND: Tartary buckwheat are very popular as an important functional food material and its cultivation is very widespread in our whole world, but there obviously lack works in the researches of genetic breeding for agricultural and medicinal utilization. The aim of this study is to obtain good germplasm resources for agricultural and medicinal use of tartary buckwheat (Fagopyrum tataricum) by inducing the tetraploid plants. RESULTS: Four cultivars of F. tataricum, that is, Qianwei 2#, Jinku 2#, Chuanqiao 1#, and Liuqiao 1# were selected to experiment...
December 2017: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/28506423/a-case-of-recurrent-facial-angioedema-associated-with-elevated-tree-pollen-counts
#4
Divya Jayaraman, Donna L Bratton, Ronald J Harbeck, Molly Wolf, Nathan Rabinovitch
No abstract text is available yet for this article.
May 11, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28500390/pollen-exposure-and-hospitalization-due-to-asthma-exacerbations-daily-time-series-in-a-european-city
#5
Nicholas J Osborne, Ian Alcock, Benedict W Wheeler, Shakoor Hajat, Christophe Sarran, Yolanda Clewlow, Rachel N McInnes, Deborah Hemming, Mathew White, Sotiris Vardoulakis, Lora E Fleming
Exposure to pollen can contribute to increased hospital admissions for asthma exacerbation. This study applied an ecological time series analysis to examine associations between atmospheric concentrations of different pollen types and the risk of hospitalization for asthma in London from 2005 to 2011. The analysis examined short-term associations between daily pollen counts and hospital admissions in the presence of seasonal and long-term patterns, and allowed for time lags between exposure and admission. Models were adjusted for temperature, precipitation, humidity, day of week, and air pollutants...
May 12, 2017: International Journal of Biometeorology
https://www.readbyqxmd.com/read/28480855/plant-aeroallergens-in-two-major-cities-of-georgia-tbilisi-and-kutaisi
#6
T Abramidze, M Gotua, N Chikhelidze, T Cheishvili, A Gamkrelidze
Pollen allergy is caused by a hypersensitivity reaction mainly of the respiratory tract and eye conjunctivae to pollen grains. The number of people allergic to plant aeroallergens has substantially increased in big cities and industrial areas. The monitoring of aerobiological parameters is of paramount importance for the characterization of allergenic risks. The aims of presented study were as follows: to profile the plant aeroallergens in two major cities of Georgia, to compare the character of pollination curves, to determine the dates of beginning of pollen seasons and their duration in particular cities...
March 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28448597/reconstructing-grassland-fire-history-using-sedimentary-charcoal-considering-count-size-and-shape
#7
Berangere A Leys, Julie L Commerford, Kendra K McLauchlan
Fire is a key Earth system process, with 80% of annual fire activity taking place in grassland areas. However, past fire regimes in grassland systems have been difficult to quantify due to challenges in interpreting the charcoal signal in depositional environments. To improve reconstructions of grassland fire regimes, it is essential to assess two key traits: (1) charcoal count, and (2) charcoal shape. In this study, we quantified the number of charcoal pieces in 51 sediment samples of ponds in the Great Plains and tested its relevance as a proxy for the fire regime by examining 13 potential factors influencing charcoal count, including various fire regime components (e...
2017: PloS One
https://www.readbyqxmd.com/read/28417625/influence-of-sensitization-patterns-on-fractional-exhaled-nitric-oxide-in-asthmatic-children
#8
Miao Qing, Xu Wei, Li Zhen, Guan Hui, Liu Xiao-Ying, Huang Hui-Jie, Wang Yan, Ren Yi-Xin, Liu Yong-Ge, Xiang Li
Fractional exhaled nitric oxide (FeNO) has been suggested as a non-invasive biomarker of airway inflammation, which is increased in atopic subjects. Whether sensitization to particular allergens is a predictive factor for increased FeNO levels is not yet fully understood. We conducted a retrospective cross-sectional study. From October to December in 2015, the medical documents of 127 mild, steroid-naive asthmatic children and 34 healthy age-matched children were enrolled in this study. The results of the FeNO measurements, skin prick test, and the spirometry were collected for analysis...
February 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28378978/poaceae-secale-spp-and-artemisia-spp-pollen-in-the-air-at-two-sites-of-different-degrees-of-urbanisation
#9
Aleksandra Kruczek, Małgorzata Puc, Tomasz Wolski
INTRODUCTION: Among herbal plants, most cases of allergic reactions, like seasonal inflammation of nasal mucosa, conjunctivitis and pollen asthma, are related to the allergens from grass pollen. As the blossoming and pollination of rye is known to start the pollen season of grasses, information about the airborne rye pollen count permits alerting the people allergic to certain allergens contained in rye pollen. An important cause of allergy is also the pollen from wormwood, blossoming in late summer, as its two main allergens produce cross-reactions with many other plant allergens...
March 21, 2017: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28362553/agronomic-performance-of-insect-protected-and-herbicide-tolerant-mon-89034-%C3%A3-tc1507-%C3%A3-nk603-%C3%A3-das-40278-9-corn-is-equivalent-to-that-of-conventional-corn
#10
Denise T Rezende de Cerqueira, Ariane C Schafer, Brandon J Fast, Rod A Herman
Agronomic characteristics of genetically modified (GM) MON 89034 × TC1507 × NK603 × DAS-40278-9 (PowerCore™ Enlist™), MON 89034 × TC1507 × NK603 (PowerCore™), and DAS-40278-9 (Enlist™) corn, a non-GM near-isogenic hybrid, and 2 commercial non-GM hybrids were assessed in a field study to determine if the agronomic performance of the GM corn hybrids is equivalent to that of non-transgenic hybrid corn. The MON 89034 × TC1507 × NK603 × DAS-40278-9 hybrid corn was developed through stacking of 4 individual transgenic events, MON 89034, TC1507, NK603, and DAS-40278-9 by traditional breeding and contains the cry1A...
March 31, 2017: GM Crops & Food
https://www.readbyqxmd.com/read/28360459/correlation-of-pollen-counts-and-number-of-hospital-visits-of-asthmatic-and-allergic-rhinitis-patients
#11
Nishtha Singh, Udaiveer Singh, Dimple Singh, Mangal Daya, Virendra Singh
AIMS AND OBJECTIVES: Environmental pollens are known to cause exacerbation of symptoms of patients with allergic rhinitis (AR) and asthma. During pollen months, number of patients visiting hospital has been shown to increase in some studies. However, in India, such studies are lacking. Therefore, we aimed to study pollen counts and to find its correlation with number of new patients attending Asthma Bhawan for 2 years. MATERIALS AND METHODS: Aerobiological sampling was done using Burkard 24 h spore trap system...
March 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28331111/longitudinal-monitoring-of-tree-airborne-pollen-in-japan
#12
Reiko Kishikawa, Eiko Kotoh, Chie Oshikawa, Nobuo Soh, Terufumi Shimoda, Akemi Saito, Norio Sahashi, Tadao Enomoto, Atsushi Usami, Hidetoyo Teranishi, Yohko Fujisaki, Toshitaka Yokoyama, Kohji Murayama, Tohru Imai, Yuma Fukutomi, Masami Taniguchi, Tomoaki Iwanaga
RATIONAL: In Japan patients with Japanese Cedar (JC) pollinosis have increased nation widely since the latter of 1970's. The Ministry of Health and Welfare of Japanese Governments has begun to take preventive measures against JC pollinosis and airborne pollen monitoring has begun to investigate as a causative agent since 1986. We have estimated the longitudinal investigation result for successful prevention and treatment against pollinosis in Japan. METHOD: We have monitored airborne pollen all year around since July 1986 by gravitational pollen sampler, Durham's sampler, at more than 20 locations in the Japanese Islands...
2017: Arerugī, [Allergy]
https://www.readbyqxmd.com/read/28294585/static-and-elevated-pollen-traps-do-not-provide-an-accurate-assessment-of-personal-pollen-exposure
#13
V Penel, M Calleja, C Pichot, D Charpin
Background. Volumetric pollen traps are commonly used to assess pollen exposure. These traps are well suited for estimating the regional mean airborne pollen concentration but are likely not to provide an accurate index of personal exposure. In this study, we tested the hypothesis that hair sampling may provide different pollen counts from those from pollen traps, especially when the pollen exposure is diverse. Methods. We compared pollen counts in hair washes to counts provided by stationary volumetric and gravimetric pollen traps in 2 different settings: urban with volunteers living in short distance from one another and from the static trap and suburban in which volunteers live in a scattered environment, quite far from the static trap...
March 2017: European Annals of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28217431/a%C3%A2-novel-experimental-technology-for-testing-efficacy-of-air-purifiers-on-pollen-reduction
#14
Karl-Christian Bergmann, Torsten Sehlinger, Julia Gildemeister, Torsten Zuberbier
BACKGROUND: Allergenic pollen exposure is mostly seen as an outdoor phenomenon but studies have shown an indoor exposure: different pollen species including birch and grass pollen in houses, schools, and shops are leading to long-lasting symptoms even after the pollen season because pollen settle on surfaces and re-enter the indoor air depending on ventilation. To reduce indoor pollen load, windows need to be closed and devices should be used: as pure wiping and cleaning of surfaces is mostly not sufficient, air cleaners may be helpful in reducing pollen counts in indoor environment...
2017: Allergo Journal International
https://www.readbyqxmd.com/read/28122685/aerobiological-importance-and-allergic-sensitization-to-amaranthaceae-under-arid-climate-conditions
#15
Belén Elvira-Rendueles, Juan J Zapata, Juan C Miralles, José M Moreno, Antonio García-Sánchez, Luis Negral, Stella Moreno-Grau
Species of the Amaranthaceae family are abundant in the Southeast of Spain, one of the driest areas in Europe. The Amaranthaceae include species of interest from the point of view of allergic diseases. With the expansion of aridity, many species belonging to this family will be favoured. The objectives of this study were: first, to define the prevalence of sensitization to Amaranthaceae pollen in allergic patients in the Southeast of Spain; second, to present the aerobiological features of this taxon; and, finally, to demarcate those periods of increased risk of suffering allergic symptoms with the aim of improving the diagnosis and prevention of hay fever...
January 22, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28120599/parietaria-pollination-duration-myth-or-fact
#16
R Ariano, L Cecchi, S Voltolini, O Quercia, E Scopano, G Ciprandi
Background. Even though the Parietaria pollen season may be rather long, it is commonly thought that Parietaria pollen is a perennial allergen present along the whole year. Objective. This study aimed at investigating the duration of Parietaria pollen season during a 10-year period in Italy, analysing also the annual pollen quantity and the differences among geographical areas. Methods. Pollen count was assessed daily for 10 years. Globally, ten Italian centers measured Parietaria pollen count. Start date, peak date, end date, duration (days), peak value, and seasonal pollen index were evaluated in each center...
January 2017: European Annals of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28024990/molecular-approaches-for-the-analysis-of-airborne-pollen-a-case-study-of-juniperus-pollen
#17
Rashmi Prava Mohanty, Mark Alan Buchheim, Estelle Levetin
BACKGROUND: Pollen monitoring is a common and vital tool in the field of allergy, creating awareness in pollen sensitive individuals. Traditionally, pollen monitoring has been based on conventional microscopic counting techniques that are labor intensive and limited in the identification to the genus or family level. Molecular techniques provide an alternative approach that is less labor intensive and enable identification of any species by its genetic fingerprint. OBJECTIVE: To use quantitative polymerase chain reaction (qPCR) to evaluate pollen concentrations in air samples...
December 23, 2016: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28024227/the-role-of-outdoor-fungi-on-asthma-hospital-admissions-in-children-and-adolescents-a-5-year-time-stratified-case-crossover-analysis
#18
Rachel Tham, Constance H Katelaris, Don Vicendese, Shyamali C Dharmage, Adrian J Lowe, Gayan Bowatte, Philip Taylor, Pamela Burton, Michael J Abramson, Bircan Erbas
BACKGROUND: Some fungal spores can trigger asthma exacerbation but knowledge of which outdoor fungal spores contribute to asthma hospitalisation is limited. OBJECTIVES: To examine the role of outdoor fungal spores in child and adolescent asthma hospitalisations. METHODS: We conducted a bi-directional time-stratified case-crossover study of child and adolescent asthma hospitalisations over 5 years. Conditional logistic regression assessed the role of 20 fungi taxa (Same day [L0] and lagged [L1-3]) adjusted for maximum temperature, humidity and grass pollen...
April 2017: Environmental Research
https://www.readbyqxmd.com/read/28008277/technical-and-clinical-validation-of-an-environmental-exposure-unit-for-ragweed
#19
Paul J Gomes, Keith J Lane, Endri Angjeli, Linda Stein, Mark B Abelson
BACKGROUND: Allergic rhinitis is a common condition, with ragweed pollen one of the more prevalent aeroallergens. Environmental exposure units such as the Allergen BioCube(®) are valuable models for clinical allergy studies. A study was conducted to validate the Allergen BioCube for uniform ragweed pollen concentrations and clinically relevant sign and symptom responses to ragweed exposure. METHODS: Ragweed pollen concentrations were measured on 3 consecutive days in the Allergen BioCube and verified by Rotorod collection and continuous laser particle count measurements...
2016: Journal of Asthma and Allergy
https://www.readbyqxmd.com/read/27911374/flow-cytometric-analysis-of-particle-bound-bet-v-1-allergen-in-pm10
#20
Katrin Süring, Sabine Bach, Conny Höflich, Wolfgang Straff
Flow cytometry is a method widely used to quantify suspended solids such as cells or bacteria in a size range from 0.5 to several tens of micrometers in diameter. In addition to a characterization of forward and sideward scatter properties, it enables the use of fluorescent labeled markers like antibodies to detect respective structures. Using indirect antibody staining, flow cytometry is employed here to quantify birch pollen allergen (precisely Bet v 1)-loaded particles of 0.5 to 10 µm in diameter in inhalable particulate matter (PM10, particle size ≤10 µm in diameter)...
November 19, 2016: Journal of Visualized Experiments: JoVE
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