keyword
MENU ▼
Read by QxMD icon Read
search

Pollen count

keyword
https://www.readbyqxmd.com/read/29771037/-association-between-airborne-pollen-distribution-and-allergic-diseases-in-beijing-urban-area
#1
X Y Wang, Z M Tian, H Y Ning, X Y Wang
Objective: The aim of this study is to investigate the impact of airborne pollen in urban Beijing area on the consultation rate of allergic diseases. Method: A modified pollen sampler was used to monitor the distribution of main airborne pollen during Jan 1st 2015 to Dec 31 2015.The consultation rate of allergic rhinitis and asthma was obtained meanwhile among allergy, ENT and pneumology department. Relationship between pollen and consultation rate was analyzed by Pearson index. Result: ①Through the whole year of 2015 the total quantity of pollens amounted to 76164 grains...
May 20, 2017: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29748910/does-the-increase-in-ambient-co-2-concentration-elevate-allergy-risks-posed-by-oak-pollen
#2
Kyu Rang Kim, Jae-Won Oh, Su-Young Woo, Yun Am Seo, Young-Jin Choi, Hyun Seok Kim, Wi Young Lee, Baek-Jo Kim
Oak pollen is a major respiratory allergen in Korea, and the distribution of oak trees is expected to increase by ecological succession and climate change. One of the drivers of climate change is increasing CO2 , which is also known to amplify the allergy risk of weed pollen by inducing elevated allergenic protein content. However, the impact of CO2 concentration on tree pollen is not clearly understood due to the experimental difficulties in carrying out extended CO2 treatment. To study the response of pollen production of sawtooth oak trees (Quercus acutissima) to elevated levels of ambient CO2 , three open-top chambers at the National Institute of Forest Science in Suwon, Korea were utilized with daytime (8 am-6 pm) CO2 concentrations of ambient (× 1...
May 10, 2018: International Journal of Biometeorology
https://www.readbyqxmd.com/read/29698555/short-term-effect-of-outdoor-mold-spore-exposure-on-prescribed-allergy-medication-sales-in-central-france
#3
D M Caillaud, M Cheriaux, S Martin, C Ségala, N Dupuy, B Evrard, M Thibaudon
BACKGROUND: Outdoor molds are classically associated with exacerbations of asthma. OBJECTIVE: The aim of the present paper was to examine nasal allergy morbidity by studying the short-term relationship between mold spore exposure and daily sales of reimbursable anti-allergic treatment in central France. METHODS: The relationship between daily changes in mold concentrations and daily sales obtained from the national health care database was analysed with generalized additive models, taking into account confounding factors such as air pollution, weather conditions, pollen counts and days of the week...
April 26, 2018: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29692862/meioseed-a-cellprofiler-based-program-to-count-fluorescent-seeds-for-crossover-frequency-analysis-in-arabidopsis-thaliana
#4
Niels van Tol, Martijn Rolloos, Peter van Loon, Bert J van der Zaal
Background: The formation of crossovers during meiosis is pivotal for the redistribution of traits among the progeny of sexually reproducing organisms. In plants the molecular mechanisms underlying the formation of crossovers have been well established, but relatively little is known about the factors that determine the exact location and the frequency of crossover events in the genome. In the model plant species Arabidopsis , research on these factors has been greatly facilitated by reporter lines containing linked fluorescence marker genes under control of promoters active in seeds or pollen, allowing for the visualization of crossover events by fluorescence microscopy...
2018: Plant Methods
https://www.readbyqxmd.com/read/29649224/seasonal-asthma-in-melbourne-australia-and-some-observations-on-the-occurrence-of-thunderstorm-asthma-and-its-predictability
#5
Jeremy D Silver, Michael F Sutherland, Fay H Johnston, Edwin R Lampugnani, Michael A McCarthy, Stephanie J Jacobs, Alexandre B Pezza, Edward J Newbigin
We examine the seasonality of asthma-related hospital admissions in Melbourne, Australia, in particular the contribution and predictability of episodic thunderstorm asthma. Using a time-series ecological approach based on asthma admissions to Melbourne metropolitan hospitals, we identified seasonal peaks in asthma admissions that were centred in late February, June and mid-November. These peaks were most likely due to the return to school, winter viral infections and seasonal allergies, respectively. We performed non-linear statistical regression to predict daily admission rates as functions of the seasonal cycle, weather conditions, reported thunderstorms, pollen counts and air quality...
2018: PloS One
https://www.readbyqxmd.com/read/29551533/immunotherapy-with-the-sq-tree-slit-tablet-in-adults-and-adolescents-with-allergic-rhinoconjunctivitis
#6
Mika J Mäkelä, Pär Gyllfors, Erkka Valovirta, Maria A Steffensen, Pernille M Grønager, Johannes Savolainen, Lone Winther
PURPOSE: The SQ tree sublingual immunotherapy (SLIT)-tablet containing allergen extracts with the major allergen Bet v 1 from birch pollen is currently being developed for the treatment of tree pollen-induced allergic rhinitis/conjunctivitis with or without asthma. The aim of this Phase II trial was to investigate the dose-related efficacy and safety of the SQ tree SLIT-tablet. METHODS: This study was a randomized, parallel-group, double-blind, placebo-controlled, multi-national trial conducted in Europe...
March 15, 2018: Clinical Therapeutics
https://www.readbyqxmd.com/read/29526025/sensitivity-to-house-dust-mite-allergens-and-prevalence-of-allergy-causing-house-dust-mite-species-in-pothwar-pakistan
#7
Rubaba Hamid Shafique, Shamim Akhter, Shahid Abbas, Muhammad Ismail
This study is the first report on the epidemiological status of house dust mite (HDM) allergy in Pothwar, Pakistan. Allergy data of 2087 symptomatic patients were obtained, of whom 1706 (81.7%) patients were skin-prick-test positive for HDM allergens. This percentage was significantly higher than for pollen and food allergens. In the results of this study Dermatophagoides farinae (61%) and D. pteronyssinus (29%) were the predominant species in the study area. Besides these pyroglyphids, predatory Cheyletus sp...
April 2018: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/29426027/ozone-no-2-and-pm-10-are-associated-with-the-occurrence-of-multiple-sclerosis-relapses-evidence-from-seasonal-multi-pollutant-analyses
#8
Maxime Jeanjean, Marie-Abele Bind, Jonathan Roux, Jean-Claude Ongagna, Jérôme de Sèze, Denis Bard, Emmanuelle Leray
BACKGROUND: Triggers of multiple sclerosis (MS) relapses are essentially unknown. PM10 exposure has recently been associated with an increased risk of relapses. OBJECTIVES: We further explore the short-term associations between PM10 , NO2 , benzene (C6 H6 ), O3 , and CO exposures, and the odds of MS relapses' occurrence. METHODS: Using a case-crossover design, we studied 424 MS patients living in the Strasbourg area, France between 2000 and 2009 (1783 relapses in total)...
May 2018: Environmental Research
https://www.readbyqxmd.com/read/29377154/a-novel-glycocluster-molecule-prevents-timothy-induced-allergic-airway-inflammation-in-mice
#9
M Lehto, H Wolff, R Leino, H Alenius, J Savolainen
BACKGROUND: Allergen-specific immunotherapy (SIT) effectively alleviates type I allergic diseases characterized by T helper (Th)2-type immunity. Our recent studies have shown that a synthetic trivalent glycocluster, triacedimannose (TADM), suppresses the Th2-type allergic inflammation. The aim of this study was to compare TADM with two well-known adjuvants, unmethylated cytosine-phosphate-guanine oligodeoxynucleotide (CpG) and monophosphoryl lipid A (MPLA) in a grass allergen-induced chronic allergic inflammation model in mice...
January 26, 2018: Allergy
https://www.readbyqxmd.com/read/29339970/a-new-image-based-tool-for-the-high-throughput-phenotyping-of-pollen-viability-evaluation-of-inter-and-intra-cultivar-diversity-in-grapevine
#10
Javier Tello, María Ignacia Montemayor, Astrid Forneck, Javier Ibáñez
Background: Low pollen viability may limit grapevine yield under certain conditions, causing relevant economic losses to grape-growers. It is usually evaluated by the quantification of the number of viable and non-viable pollen grains that are present in a sample after an adequate pollen grain staining procedure. Although the manual counting of both types of grains is the simplest and most sensitive approach, it is a laborious and time-demanding process. In this regard, novel image-based approaches can assist in the objective, accurate and cost-effective phenotyping of this trait...
2018: Plant Methods
https://www.readbyqxmd.com/read/29322523/prevalence-of-pollen-induced-allergic-rhinitis-with-high-pollen-exposure-in-grasslands-of-northern-china
#11
X-Y Wang, T-T Ma, X-Y Wang, Y Zhuang, X-D Wang, H-Y Ning, H-Y Shi, R-L Yu, D Yan, H-D Huang, Y-F Bai, G-L Shan, B Zhang, Q-K Song, Y-F Zhang, T-J Zhang, D-Z Jia, X-L Liu, Z-X Kang, W-J Yan, B-T Yang, X-Z Bao, S-H Sun, F-F Zhang, W-H Yu, C-L Bai, T Wei, T Yang, T-Q Ma, X-B Wu, J-G Liu, H Du, L Zhang, Y Yan, D-Y Wang
BACKGROUND: The aim of this study was to investigate the prevalence of epidemiologic and physician-diagnosed pollen-induced AR (PiAR) in the grasslands of northern China and to study the impact of the intensity and time of pollen exposure on PiAR prevalence. METHODS: A multistage, clustered and proportionately stratified random sampling with a field interviewer-administered survey study was performed together with skin prick tests (SPT) and measurements of the daily pollen count...
January 10, 2018: Allergy
https://www.readbyqxmd.com/read/29287787/digestibility-and-nutritional-value-of-fresh-and-stored-pollen-for-honey-bees-apis-mellifera-scutellata
#12
Susan W Nicolson, Susana Da Silva Das Neves, Hannelie Human, Christian W W Pirk
Pollen, the main protein source for honey bees, is mixed with regurgitated nectar or honey during collection and then stored as 'bee bread' before its consumption, mainly by young nurse workers. It has been suggested that storage of pollen improves its nutritional value and digestibility, but there is little evidence for such changes. We fed two fresh pollen types of different protein content (aloe and sunflower), and two stored pollen types (sunflower and a mixed pollen), to young caged worker bees. We measured daily consumption of pollen and sucrose solution, and survival after 14 days...
December 26, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/29220768/analysis-of-airborne-olea-pollen-in-cartagena-spain
#13
M D Galera, B Elvira-Rendueles, J M Moreno, L Negral, M C Ruiz-Abellón, A García-Sánchez, S Moreno-Grau
Olive cultivation is of great importance in Southern Europe but olive pollen is the leading cause of allergy in many regions where it is grown. The best preventive measure for allergic patients is to avoid exposure. Thus, aerobiological monitoring networks must supply realistic pollen classes for the different types of allergic pollen. Even though those pollen classes are defined, they do not necessarily fit local data. Altogether, they should use predictive models to assess flowering intensity in advance. In this study, the Olea pollen degree of exposure classes (OPDEC) are defined based on percentiles and a predictive model is suggested for Cartagena, Spain...
May 1, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29184226/antioxidant-activity-and-protective-effect-of-bee-bread-honey-and-pollen-in-aluminum-induced-anemia-elevation-of-inflammatory-makers-and-hepato-renal-toxicity
#14
Meryem Bakour, Noori S Al-Waili, Nawal El Menyiy, Hamada Imtara, Anna Cristina Figuira, Thia Al-Waili, Badiaa Lyoussi
Aluminum toxicity might be related to oxidative stress, and the antioxidant activity and protective effect of bee bread, which contains pollen, honey and bees' enzymes, on aluminum induced blood and hepato-renal toxicity was investigated in rats. Chemical analysis and antioxidant capacity of bee bread were conducted. The animal experiment in rats included; group 1: received distilled water (10 ml/kg b.wt), group 2: received aluminum chloride (662.2 mg/kg b.wt), group 3: received aluminum chloride (662.2 mg/kg b...
December 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/29134400/safe-sites-of-pollen-placement-a-conflict-of-interest-between-plants-and-bees
#15
Ze-Yu Tong, Shuang-Quan Huang
Plant stigmas and bee pollinators are competitors for pollen. Pollen placed on a pollinator's body can be picked up by conspecific stigmas or it can be collected by the pollinator as food. Hypothetically, one solution is for pollen to be placed on 'safe sites' on the pollinator's body, sites where the pollinator cannot easily remove it, leaving the pollen for stigmas. We compared 14 sites on the bumblebee body in terms of the ability of the bee to groom off fluorescent power, a dust that may be thought of as analogous to pollen...
January 2018: Oecologia
https://www.readbyqxmd.com/read/29134290/re-emergence-of-lilium-callosum-sieb-et-zucc-in-taiwan-after-a-fire-allows-propagation-and-renews-the-possibility-of-conservation
#16
Ying Chun Chen, Yang Jung Huang, Chiu Mei Wang, Chin An Chiu, Huey Ling Lin, Pei Fang Lee, Ya Ming Cheng, Chen Chang
BACKGROUND: Lilium callosum is native to Taiwan, but little is known about it since it has been considered extinct since 1915. After the rediscovery of this rare species after a fire in 2011 in Tunghsiao Township, intensive work has been conducted to count the number in the wild population, to develop a conservation strategy, and to understand its reproductive characteristics and even economic potential. RESULTS: To conserve the germplasm of this population, three scales from a wild L...
November 13, 2017: Botanical Studies (Taipei, Taiwan)
https://www.readbyqxmd.com/read/29118416/protein-nutrition-governs-within-host-race-of-honey-bee-pathogens
#17
Manuel Tritschler, Jutta J Vollmann, Orlando Yañez, Nor Chejanovsky, Karl Crailsheim, Peter Neumann
Multiple infections are common in honey bees, Apis mellifera, but the possible role of nutrition in this regard is poorly understood. Microsporidian infections, which are promoted by protein-fed, can negatively correlate with virus infections, but the role of protein nutrition for the microsporidian-virus interface is unknown. Here, we challenged naturally deformed wing virus - B (DWV-B) infected adult honey bee workers fed with or without pollen ( = protein) in hoarding cages, with the microsporidian Nosema ceranae...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29080463/ameliorative-effects-of-bee-pollen-and-date-palm-pollen-on-the-glycemic-state-and-male-sexual-dysfunctions-in-streptozotocin-induced-diabetic-wistar-rats
#18
Nema A Mohamed, Osama M Ahmed, Walaa G Hozayen, Marium A Ahmed
This study aimed to assess the effects of bee pollen (BP) and/or date palm pollen (DPP) suspensions on the glycemic state, testicular dysfunctions, oxidative stress and antioxidant defense system in streptozotocin (STZ)-induced diabetic male Wistar rats. Diabetes mellitus was induced by single intraperitoneal injection of STZ to overnight-fasted rats at dose of 40mg/kg body weight. After 1 week of STZ injection, diabetic rats were treated with BP and/or DPP suspensions at dose levels of 100mg/kg body weight/day for 4 weeks...
January 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29033539/possible-association-between-subtypes-of-dry-eye-disease-and-seasonal-variation
#19
Masahiko Ayaki, Motoko Kawashima, Miki Uchino, Kazuo Tsubota, Kazuno Negishi
PURPOSE: The purpose of this study was to evaluate the influence of seasons on the signs and symptoms of dry eye disease (DED). METHODS: This is a cross-sectional, case-control study, and participants were non-DED subjects (n=1,916, mean age 54.4±14.4 years) and DED patients (n=684, 54.2±12.1 years) visiting six eye clinics at various practices and locations in Japan. We evaluated the signs and symptoms of DED and the seasons with the most severe results were compared to those with the least severe results in both groups...
2017: Clinical Ophthalmology
https://www.readbyqxmd.com/read/28965257/annual-and-intradiurnal-variation-of-dominant-airborne-pollen-and-the-effects-of-meteorological-factors-in-%C3%A3-e%C3%A5-me-izmir-turkey
#20
Ulas Uguz, Aykut Guvensen, Nedret Sengonca Tort
In this present study, airborne pollen in Çeşme was investigated between February 17, 2012 and February 17, 2014 using the volumetric method. Çeşme, one of Turkey's most important tourism centers, which attracts numerous local and foreign tourists each year, is a district of Izmir, a province in the western part of Turkey. During the 2-year study, 12,905 pollen grains belonging to 64 taxa (33 arboreal, 31 non-arboreal plants) were detected. However, the 2-year data results revealed that the taxa with the pollen concentration more than 4% in the atmosphere were Cupressaceae/Taxaceae (4268 pollen, 33...
September 30, 2017: Environmental Monitoring and Assessment
keyword
keyword
13109
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"