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https://www.readbyqxmd.com/read/27911016/positive-impact-of-omalizumab-on-angioedema-and-quality-of-life-in-patients-with-refractory-chronic-idiopathic-spontaneous-urticaria-analyses-according-to-the-presence-or-absence-of-angioedema
#1
M Maurer, H Sofen, B Ortiz, F Kianifard, S Gabriel, J A Bernstein
BACKGROUND: Approximately 50% of patients with chronic idiopathic/spontaneous urticaria (CIU/CSU) report hives and angioedema; some experience hives/ angioedema only. OBJECTIVE: Assess omalizumab's effect on angioedema and quality of life (QoL) in subgroups with refractory CIU/CSU: those with and without angioedema. METHODS: Patients received omalizumab (75, 150 or 300 mg) or placebo every 4 weeks for 12/24 weeks. Angioedema and QoL was assessed (Urticaria Patient Daily Diary and Dermatology Quality of Life Index [DLQI])...
December 2, 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/27896027/assessing-pollinators-use-of-floral-resource-subsidies-in-agri-environment-schemes-an-illustration-using-phacelia-tanacetifolia-and-honeybees
#2
Rowan Sprague, Stéphane Boyer, Georgia M Stevenson, Steve D Wratten
BACKGROUND: Honeybees (Apis mellifera L.) are frequently used in agriculture for pollination services because of their abundance, generalist floral preferences, ease of management and hive transport. However, their populations are declining in many countries. Agri-Environment Schemes (AES) are being implemented in agricultural systems to combat the decline in populations of pollinators and other insects. Despite AES being increasingly embedded in policy and budgets, scientific assessments of many of these schemes still are lacking, and only a few studies have examined the extent to which insect pollinators use the floral enhancements that are part of AES and on which floral components they feed (i...
2016: PeerJ
https://www.readbyqxmd.com/read/27882879/treatment-of-chronic-spontaneous-urticaria-with-an-inadequate-response-to-h1-antihistamines-an-expert-opinion
#3
Christian Vestergaard, Elias Toubi, Marcus Maurer, Massimo Triggiani, Barbara Ballmer-Weber, Alexander Marsland, Marta Ferrer, André Knulst, Ana Giménez-Arnau
Chronic spontaneous urticaria (CSU) is characterized by the sudden, continuous or intermittent appearance of pruritic wheals (hives), angioedema, or both for six weeks or more, with no known specific trigger. The international EAACI/GA(2)LEN/EDF/WAO urticaria guideline advises standard-dose, second-generation H1-antihistamines as first-line therapy. However, H1-antihistamine treatment leads to absence of symptoms in fewer than 50% of patients. Updosing of second-generation H1-antihistamines (up to fourfold) as recommended by the EAACI/GA(2)LEN/EDF/WAO urticaria guideline as second-line therapy, can improve response, but many patients remain symptomatic...
November 23, 2016: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/27881750/experimental-evidence-that-honeybees-depress-wild-insect-densities-in-a-flowering-crop
#4
Sandra A M Lindström, Lina Herbertsson, Maj Rundlöf, Riccardo Bommarco, Henrik G Smith
While addition of managed honeybees (Apis mellifera) improves pollination of many entomophilous crops, it is unknown if it simultaneously suppresses the densities of wild insects through competition. To investigate this, we added 624 honeybee hives to 23 fields of oilseed rape (Brassica napus L.) over 2 years and made sure that the areas around 21 other fields were free from honeybee hives. We demonstrate that honeybee addition depresses the densities of wild insects (bumblebees, solitary bees, hoverflies, marchflies, other flies, and other flying and flower-visiting insects) even in a massive flower resource such as oilseed rape...
November 30, 2016: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/27875589/on-the-effects-of-artificial-feeding-on-bee-colony-dynamics-a-mathematical-model
#5
Juliana Pereira Lisboa Mohallem Paiva, Henrique Mohallem Paiva, Elisa Esposito, Michelle Manfrini Morais
This paper proposes a new mathematical model to evaluate the effects of artificial feeding on bee colony population dynamics. The proposed model is based on a classical framework and contains differential equations that describe the changes in the number of hive bees, forager bees, and brood cells, as a function of amounts of natural and artificial food. The model includes the following elements to characterize the artificial feeding scenario: a function to model the preference of the bees for natural food over artificial food; parameters to quantify the quality and palatability of artificial diets; a function to account for the efficiency of the foragers in gathering food under different environmental conditions; and a function to represent different approaches used by the beekeeper to feed the hive with artificial food...
2016: PloS One
https://www.readbyqxmd.com/read/27871357/contact-urticaria-with-paraphenylene-diamine-rare-or-underreported
#6
Muthu Sendhil Kumaran, Tarun Narang, Davinder Parsad
A 45-year old woman presented with a 2-day history of intensely itchy, erythematous wheals over her scalp and around her eyes, ears, and front of the chest. She had applied hair color and immediately developed hives on the scalp, face, and chest with rhinitis and redness in the eyes. The lesions recovered within a half hour of taking a cetirizine 10-mg tablet. She gave a similar history around three times in the past 6 months. She used a different brand of hair color every time but all were associated with the same symptoms...
2016: Skinmed
https://www.readbyqxmd.com/read/27870832/position-effects-influence-hiv-latency-reversal
#7
Heng-Chang Chen, Javier P Martinez, Eduard Zorita, Andreas Meyerhans, Guillaume J Filion
The main obstacle to curing HIV is the presence of latent proviruses in the bodies of infected patients. The partial success of reactivation therapies suggests that the genomic context of integrated proviruses can interfere with treatment. Here we developed a method called Barcoded HIV ensembles (B-HIVE) to map the chromosomal locations of thousands of individual proviruses while tracking their transcriptional activities in an infected cell population. B-HIVE revealed that, in Jurkat cells, the expression of HIV is strongest close to endogenous enhancers...
November 21, 2016: Nature Structural & Molecular Biology
https://www.readbyqxmd.com/read/27863053/caffeic-acid-phenethyl-ester-cape-revisited-covalent-modulation-of-xpo1-crm1-activities-and-implication-for-its-mechanism-of-action
#8
Sijin Wu, Keren Zhang, Hongqiang Qin, Mingshan Niu, Weijie Zhao, Mingliang Ye, Hanfa Zou, Yongliang Yang
Caffeic acid phenethyl ester (CAPE) is the bioactive constituent of propolis from honeybee hives and is well known for its anti-inflammatory, anti-carcinogenic, antioxidant and immunomodulatory properties. Herein, we revisited the cellular mechanism underlying the diverse biological effects of CAPE. We demonstrated that XPO1/CRM1, a major nuclear export receptor, is a cellular target of CAPE. Through nuclear export functional assay, we observed a clear shift of XPO1 cargo proteins from a cytoplasmic localization to nucleus when treated with CAPE...
November 8, 2016: Chemical Biology & Drug Design
https://www.readbyqxmd.com/read/27852845/honey-bee-deformed-wing-virus-structures-reveal-conformational-changes-accompany-genome-release
#9
Lindsey J Organtini, Kristin L Shingler, Robert E Ashley, Elizabeth A Capaldi, Kulsoom Durrani, Kelly A Dryden, Alexander M Makhov, James F Conway, Marie C Pizzorno, Susan Hafenstein
: The picornavirus-like deformed wing virus (DWV) has been directly linked to colony collapse; however, little is known about the mechanisms of host attachment or entry for DWV or its molecular and structural details. Here we report the 3-D structures of DWV capsids isolated from infected honey bees, including the immature procapsid, genome-filled virion, putative entry intermediate (A-particle), and the empty capsid that remains after genome release. The capsids are decorated by large spikes around the five-fold vertices...
November 16, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27852693/migratory-bee-hive-transportation-contributes-insignificantly-to-transgenic-pollen-movement-between-spatially-isolated-alfalfa-seed-fields
#10
Natalie K Boyle, Sandya R Kesoju, Stephanie L Greene, Ruth C Martin, Douglas B Walsh
Contracted commercial beekeeping operations provide an essential pollination service to many agricultural systems worldwide. Increased use of genetically engineered crops in agriculture has raised concerns over pollinator-mediated gene flow between transgenic and conventional agricultural varieties. This study evaluated whether contracted migratory beekeeping practices influence transgenic pollen flow among spatially isolated alfalfa fields. Twelve honey bee (Apis mellifera L.) colonies were permitted to forage on transgenic alfalfa blossoms for 1 wk in Touchet, WA...
November 16, 2016: Journal of Economic Entomology
https://www.readbyqxmd.com/read/27846310/improving-mitochondrial-function-protects-bumblebees-from-neonicotinoid-pesticides
#11
Michael B Powner, Thomas E Salt, Chris Hogg, Glen Jeffery
Global pollination is threatened by declining insect pollinator populations that may be linked to neonicotinoid pesticide use. Neonicotinoids over stimulate neurons and depolarize their mitochondria, producing immobility and death. However, mitochondrial function can be improved by near infrared light absorbed by cytochrome c oxidase in mitochondrial respiration. In flies, daily exposure to 670nm light throughout life increases average lifespan and aged mobility, and reduces systemic inflammation. Here we treat bumble bees with Imidacloprid a common neonicotinoid...
2016: PloS One
https://www.readbyqxmd.com/read/27833967/diagnosing-hiv-associated-cerebral-diseases-the-importance-of-neuropathology-in-understanding-hiv
#12
Ioan Alexandru Diaconu, LaurenŢiu MihăiŢă Stratan, Luciana Nichita, Victoria Aramă, Valentina Ruxandra Moroti Constantinescu, Alexandra Ioana Diaconu, Daniela Adriana Ion
The study aims to compare two aspects concerning the diagnosis of acquired immune deficiency syndrome (AIDS)-associated central nervous system (CNS) pathology (neuroAIDS): clinical diagnoses issued ante mortem with pathology results issued post mortem. The group of 39 human immunodeficiency virus (HIV)-positive patients was created over 23 years and is limited by marked heterogeneity. The enrolled cases were treated at the "Prof. Dr. Matei Bals" National Institute for Infectious Diseases, Bucharest, Romania, deceased due to AIDS-related complications and underwent brain necropsies performed in the Pathology Laboratory at the "Colentina" Clinical Hospital, Bucharest...
2016: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/27832727/variability-of-residue-concentrations-of-ciprofloxacin-in-honey-from-treated-hives
#13
Danny Chan, Roy Macarthur, Richard J Fussell, Jack Wilford, Giles Budge
Honey bees (Apis mellifera) were treated with a model veterinary drug compound (ciprofloxacin) in a three year study (2012 to 2014) to investigate the variability of residue concentration in honey. Sucrose solution containing ciprofloxacin was administered to 45 hives (1 g of ciprofloxacin per hive) at the beginning of the honey flow in late May/mid-June 2012, 2013 and 2014. Buckfast honey bees (A. mellifera - hybrid) were used in years 2012 and 2013. Carniolan bees (A. mellifera carnica) were used instead of the Buckfast bees as a replacement due to unforeseen circumstances in the final year of the study (2014)...
November 11, 2016: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/27832169/honey-bee-viruses-in-wild-bees-viral-prevalence-loads-and-experimental-inoculation
#14
Adam G Dolezal, Stephen D Hendrix, Nicole A Scavo, Jimena Carrillo-Tripp, Mary A Harris, M Joseph Wheelock, Matthew E O'Neal, Amy L Toth
Evidence of inter-species pathogen transmission from managed to wild bees has sparked concern that emerging diseases could be causing or exacerbating wild bee declines. While some pathogens, like RNA viruses, have been found in pollen and wild bees, the threat these viruses pose to wild bees is largely unknown. Here, we tested 169 bees, representing 4 families and 8 genera, for five common honey bee (Apis mellifera) viruses, finding that more than 80% of wild bees harbored at least one virus. We also quantified virus titers in these bees, providing, for the first time, an assessment of viral load in a broad spectrum of wild bees...
2016: PloS One
https://www.readbyqxmd.com/read/27803886/bepotastine-induced-urticaria-cross-reactive-with-other-antihistamines
#15
Ju Wan Kang, Jaechun Lee
Second-generation antihistamines are widely prescribed for the control of symptoms of allergic inflammation such as itchy hives, coryza, and itchy eyes. In rare circumstances, these drugs might provoke allergic inflammation. Hypersensitivity to bepotastine besilate, a second-generation antihistamine has never been reported. A 17-year-old schoolgirl, whose paroxysmal itchy hives had been controlled with bepotastine, experienced aggravation of the hives. An oral provocation test confirmed her hypersensitivity to bepotastine and cross-reactivity to levocetirizine...
October 2016: Asia Pacific Allergy
https://www.readbyqxmd.com/read/27794455/the-chitinases-expression-is-related-to-simian-immunodeficiency-virus-encephalitis-sive-and-in-hiv-encephalitis-hive
#16
C Sanfilippo, G Nunnari, A Calcagno, L Malaguarnera, K Blennow, H Zetterberg, M Di Rosa
OBJECTIVES: Human Immunodeficiency Virus (HIV) infection can induce neurocognitive complications classified as HIV-associated neurocognitive disorder (HAND). The chitinase family is associated with innate immunity cells and many infectious diseases. METHODS: We analyzed microarray datasets obtained from NCBI in order to verify the expression of chitinase family genes in hippocampus of uninfected rhesus macaques versus those with histopathologic evidence of Simian Immunodeficiency Virus Encephalitis (SIVE)...
January 2, 2017: Virus Research
https://www.readbyqxmd.com/read/27783434/evolution-of-resistance-to-single-and-combined-floral-phytochemicals-by-a-bumble-bee-parasite
#17
Evan C Palmer-Young, Ben M Sadd, Lynn S Adler
Repeated exposure to inhibitory compounds can drive the evolution of resistance, which weakens chemical defense against antagonists. Floral phytochemicals in nectar and pollen have antimicrobial properties that can ameliorate infection in pollinators, but evolved resistance among parasites could diminish the medicinal efficacy of phytochemicals. However, multi-compound blends, which occur in nectar and pollen, present simultaneous chemical challenges that may slow resistance evolution. We assessed evolution of resistance by the common bumble bee gut parasite Crithidia bombi to two floral phytochemicals, singly and combined, over six weeks (~100 generations) of chronic exposure...
October 26, 2016: Journal of Evolutionary Biology
https://www.readbyqxmd.com/read/27771884/temporal-regulation-by-innate-type-2-cytokines-in-food-allergies
#18
Michelle T Graham, Sandra Andorf, Jonathan M Spergel, Talal A Chatila, Kari C Nadeau
PURPOSE OF REVIEW: Food allergies (FAs) are a growing epidemic in western countries with poorly defined etiology. Defined as an adverse immune response to common food allergens, FAs present heterogeneously as a single- or multi-organ response that ranges in severity from localized hives and angioedema to systemic anaphylaxis. RECENT FINDINGS: Current research focusing on epithelial-derived cytokines contends that temporal regulation by these factors impact initial sensitization and persistence of FA responses upon repeated food allergen exposure...
October 2016: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/27769876/seizure-specific-wavelet-seizlet-design-for-epileptic-seizure-detection-using-correntropy-ellipse-features-based-on-seizure-modulus-maximas-patterns
#19
Morteza Behnam, Hossein Pourghassem
BACKGROUND: EEG signal analysis of pediatric patients plays vital role for making a decision to intervene in presurgical stages. NEW METHOD: In this paper, an offline seizure detection algorithm based on definition of a seizure-specific wavelet (Seizlet) is presented. After designing the Seizlet, by forming cone of influence map of the EEG signal, four types of layouts are analytically designed that are called Seizure Modulus Maximas Patterns (SMMP). By mapping CorrEntropy Induced Metric (CIM) series, four structural features based on least square estimation of fitted non-tilt conic ellipse are extracted that are called CorrEntropy Ellipse Features (CEF)...
October 18, 2016: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/27769096/mechanistic-modeling-of-pesticide-exposure-the-missing-keystone-of-honey-bee-toxicology
#20
Douglas B Sponsler, Reed M Johnson
The role of pesticides in recent honey bee losses is controversial, partly because field studies often fail to detect effects predicted by laboratory studies. This dissonance highlights a critical gap in the field of honey bee toxicology: there exists little mechanistic understanding of the patterns and processes of exposure that link honey bees to pesticides in their environment. We submit that 2 key processes underlie honey bee pesticide exposure: (1) the acquisition of pesticide by foraging bees and (2) the in-hive distribution of pesticide returned by foragers...
October 21, 2016: Environmental Toxicology and Chemistry
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