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https://www.readbyqxmd.com/read/29764661/interactions-between-pesticides-and-pathogen-susceptibility-in-honey-bees
#1
REVIEW
Scott T O'Neal, Troy D Anderson, Judy Y Wu-Smart
There exist a variety of factors that negatively impact the health and survival of managed honey bee colonies, including the spread of parasites and pathogens, loss of habitat, reduced availability or quality of food resources, climate change, poor queen quality, changing cultural and commercial beekeeping practices, as well as exposure to agricultural and apicultural pesticides both in the field and in the hive. These factors are often closely intertwined, and it is unlikely that a single stressor is driving colony losses...
April 2018: Current Opinion in Insect Science
https://www.readbyqxmd.com/read/29755329/assessment-of-appetitive-behavior-in-honey-bee-dance-followers
#2
Mariel A Moauro, M Sol Balbuena, Walter M Farina
Honey bees transfer different informational components of the discovered feeding source to their nestmates during the waggle dance. To decode the multicomponent information of this complex behavior, dance followers have to attend to the most relevant signal elements while filtering out less relevant ones. To achieve that, dance followers should present improved abilities to acquire information compared with those bees not engaged in this behavior. Through proboscis extension response assays, sensory and cognitive abilities were tested in follower and non-follower bees...
2018: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/29752353/keepers-urged-to-bee-aware-of-hive-disease
#3
(no author information available yet)
Recent outbreaks of European foulbrood in honey bee colonies emphasise the importance of good hive biosecurity, as Georgina Mills reports.
May 12, 2018: Veterinary Record
https://www.readbyqxmd.com/read/29748510/toxicity-of-selected-acaricides-to-honey-bees-apis-mellifera-and-varroa-varroa-destructor-anderson-and-trueman-and-their-use-in-controlling-varroa-within-honey-bee-colonies
#4
Aleš Gregorc, Mohamed Alburaki, Blair Sampson, Patricia R Knight, John Adamczyk
The efficacies of various acaricides in order to control a parasitic mite, the Varroa mite, Varroa destructor , of honey bees, were measured in two different settings, namely, in laboratory caged honey bees and in queen-right honey bee colonies. The Varroa infestation levels before, during, and after the acaricide treatments were determined in two ways, namely: (1) using the sugar shake protocol to count mites on bees and (2) directly counting the dead mites on the hive bottom inserts. The acaricides that were evaluated were coumaphos, tau-fluvalinate, amitraz, thymol, and natural plant compounds (hop acids), which were the active ingredients...
May 10, 2018: Insects
https://www.readbyqxmd.com/read/29746645/pollen-collection-honey-production-and-pollination-services-managing-honey-bees-in-an-agricultural-setting
#5
Shelley E Hoover, Lynae P Ovinge
Hybrid canola seed production is an important pollination market in Canada; typically both honey bees (Apis mellifera L. (Hymenoptera: Apidae)) and Alfalfa Leafcutting bees (Megachile rotundata Fab. (Hymenoptera: Megachilidae)) are concurrently managed to ensure pollination in this high-value crop. Beekeepers are paid to provide pollination services, and the colonies also produce a honey crop from the canola. Pollen availability from male-fertile plants is carefully managed in this crop to provide an abundance of pollen to fertilize male-sterile ('female') plants...
May 9, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29725884/a-long-term-field-study-on-the-effects-of-dietary-exposure-of-clothianidin-to-varroosis-weakened-honey-bee-colonies
#6
Reinhold Siede, Marina D Meixner, Maria T Almanza, Ralf Schöning, Christian Maus, Ralph Büchler
Clothianidin is a commonly used systemic insecticide in seed treatments. Residues of clothianidin can occur in nectar and pollen as a result of within-plant-translocation. Foraging bees can collect contaminated nectar or pollen. Concerns have been brought forward that exposure to pesticide residues might affect colonies especially if they are weakened by varroosis. However, there are few scientific studies investigating such multiple-stressor scenarios in the context of the entire colony. To close this gapa field trial with 24 colonies was set up...
May 3, 2018: Ecotoxicology
https://www.readbyqxmd.com/read/29718285/associations-between-the-small-hive-beetle-and-the-yeast-kodamaea-ohmeri-throughout-the-host-life-cycle
#7
Brogan A Amos, Diana L Leemon, Richard A Hayes, Bronwen W Cribb, Michael J Furlong
The small hive beetle, Aethina tumida Murray (Coleoptera: Nitidulidae), is a pest of colonies of social bees, including the honeybee Apis mellifera L. (Hymenoptera: Apidae). We investigated A. tumida oviposition behavior and development and found that it laid eggs in clutches that ranged in size (3-75 eggs per clutch) and that when fed on hive products in laboratory culture (27°C; RH 65%; 12:12 (L:D) h) it completed three larval instars before pupation. The yeast Kodamaea ohmeri (Etchells & Bell) Y. Yamada, T...
May 1, 2018: Journal of Economic Entomology
https://www.readbyqxmd.com/read/29682749/stable-gastric-pentadecapeptide-bpc-157-in-honeybee-apis-mellifera-therapy-to-control-nosema-ceranae-invasions-in-apiary-conditions
#8
I Tlak Gajger, J Ribarić, M Smodiš Škerl, J Vlainić, P Sikirić
Nosema ceranae can cause major problems, such as immune suppression, gut epithelial cell degeneration, reduced honeybee lifespan, or suddenly colony collapse. As a novel approach in therapy, we hypothesize the stable gastric pentadecapeptide BPC 157 in honeybee therapy, to control N. ceranae invasions in apiary conditions: BPC 157 treated sugar syrup (0.25 L sugar syrup supplemented with 0.1 μg/ml BPC 157), as well as the pure sugar syrup (0.25 L sugar syrup; control), was administered to honeybee colonies in feeders situated under the roof of the hives, during 21 consecutive days, at the end of beekeeping season...
April 23, 2018: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/29682366/whole-exome-sequencing-and-molecular-modeling-of-a-missense-variant-in-tnfaip3-that-segregates-with-disease-in-a-family-with-chronic-urticaria-and-angioedema
#9
Antoneicka L Harris, Patrick R Blackburn, John E Richter, Jennifer M Gass, Thomas R Caulfield, Ahmed N Mohammad, Paldeep S Atwal
Chronic urticaria is a common condition characterized by recurrent hives lasting several weeks or months and is usually idiopathic. Approximately half of the individuals with chronic urticaria will present with episodes of angioedema that can be severe and debilitating. In this report, we describe a 47-year-old Hispanic male who presented initially for an evaluation of chronic hives following hospitalization due to hive-induced anaphylaxis. The individual had a history significant for urticaria and angioedema beginning in his early 30s...
2018: Case Reports in Genetics
https://www.readbyqxmd.com/read/29678920/imidacloprid-decreases-honey-bee-survival-but-does-not-affect-the-gut-microbiome
#10
Kasie Raymann, Erick V S Motta, Catherine Girard, Ian M Riddington, Jordan A Dinser, Nancy A Moran
Accumulating evidence suggests that pesticides have played a role in the increased rate of honeybee colony loss. One of the most commonly used pesticides in the US is the neonicotinoid imidacloprid. Although the primary mode of action of imidacloprid is the insect nervous system, it has also been shown to cause changes insects' digestive physiology, and alter the microbiota of Drosophila melanogaster larvae. The honey bee gut microbiome plays a major role in bee health. Although many studies have shown that imidacloprid affects honey bee behavior, its impact on the microbiome has not been fully elucidated...
April 20, 2018: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/29669665/diagnosis-pathogenesis-and-treatment-of-chronic-spontaneous-urticaria
#11
Allen P Kaplan
BACKGROUND: Chronic Spontaneous Urticaria (CSU) is an endogenous disorder that is strongly associated with autoimmunity, particularly with immunoglobulin G (IgG) antibody to the alpha subunit of the IgE receptor seen in 35-40% of patients. Basophils and cutaneous mast cells can be activated and lead to a late-phase-like perivascular infiltration about small venules and hive formation. METHODS: Review of current literature. RESULTS: Antibody to thyroid antigens are seen in 25% of patients; a small fraction of these may be clinically hypothyroid (Hashimoto's Thyroiditis)...
May 1, 2018: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/29650762/high-dose-antihistamines-for-chronic-spontaneous-urticaria-in-adults
#12
(no author information available yet)
Chronic spontaneous urticaria (CSU) is a common skin disease characterised by intermittent weals (hives), angioedema or both lasting for at least 6 weeks.1-3 Second-generation antihistamines are widely used to manage symptoms but are not completely effective in many patients at licensed doses.4 Some guidelines recommend off-label use of high-dose antihistamines as the next therapeutic step.2,3 Here, we review the evidence supporting this recommendation.
April 2018: Drug and Therapeutics Bulletin
https://www.readbyqxmd.com/read/29643175/impaired-associative-learning-after-chronic-exposure-to-pesticides-in-young-adult-honey-bees
#13
Carolina Mengoni Goñalons, Walter M Farina
Neonicotinoids are the most widespread insecticides in agriculture, preferred for their low toxicity to mammals and their systemic nature. Nevertheless, there have been increasing concerns regarding their impact on non-target organisms. Glyphosate is also widely used in crops and, therefore, traces of this pesticide are likely to be found together with neonicotinoids. Although glyphosate is considered a herbicide, adverse effects have been found on animal species, including honey bees. Apis mellifera is one of the most important pollinators in agroecosystems and is exposed to both these pesticides...
April 11, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29567359/validity-and-responsiveness-of-the-urticaria-activity-and-impact-measure-u-aim-a-new-patient-reported-tool
#14
Marcus Maurer, Susan D Mathias, Ross D Crosby, Yamina Rajput, James L Zazzali
BACKGROUND: Chronic spontaneous urticaria (CSU), also known as chronic idiopathic urticaria (CIU), may produce hives, itch, and angioedema. The Urticaria Activity and Impact Measure (U-AIM) is a newly developed 9-item patient-reported measure designed for use in routine clinical practice to assess CSU activity and impact over the previous 7 days. OBJECTIVE: To evaluate validity, responsiveness, and clinically meaningful change of the U-AIM. METHODS: Data from a 24-week open-label single-arm period of a randomized, placebo-controlled study of omalizumab were used to assess the psychometric properties of U-AIM items for itch, hives, and angioedema...
March 19, 2018: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/29556938/sublethal-effects-of-clothianidin-and-nosema-spp-on-the-longevity-and-foraging-activity-of-free-flying-honey-bees
#15
Richard Odemer, Lisa Nilles, Nadine Linder, Peter Rosenkranz
Neonicotinoids alone or in combination with pathogens are considered to be involved in the worldwide weakening of honey bees. We here present a new approach for testing sublethal and/or synergistic effects in free flying colonies. In our experiment individually marked honey bees were kept in free flying mini-hives and chronically exposed to sublethal doses of the neonicotinoid clothianidin. Additional groups of bees were challenged with Nosema infections or with combinations of the pesticide and pathogens. Longevity and flight activity of the differentially treated bees were monitored for a period of 18 days...
March 19, 2018: Ecotoxicology
https://www.readbyqxmd.com/read/29542036/prevalence-and-characteristics-of-hospital-inpatients-with-reported-fluoroquinolone-allergy
#16
Geoffrey C Wall, Matthew J Taylor, Hayden L Smith
Background Fluoroquinolone (quinolones) antibiotics are commonly prescribed worldwide. Hypersensitivity reactions to these agents have been reported, but little systematic data exists concerning prevalence, types of reactions, or associated factors. Objective To identify the prevalence of patients reporting an allergy to quinolones, types of reactions claimed, and patient information associated with allergy. Setting A tertiary 370 bed level 1 trauma center, located in a Midwestern City in the United States...
March 14, 2018: International Journal of Clinical Pharmacy
https://www.readbyqxmd.com/read/29534004/honeybees-tolerate-cyanogenic-glucosides-from-clover-nectar-and-flowers
#17
Antoine Lecocq, Amelia A Green, Érika Cristina Pinheiro De Castro, Carl Erik Olsen, Annette B Jensen, Mika Zagrobelny
Honeybees ( Apis mellifera ) pollinate flowers and collect nectar from many important crops. White clover ( Trifolium repens ) is widely grown as a temperate forage crop, and requires honeybee pollination for seed set. In this study, using a quantitative LC-MS (Liquid Chromatography-Mass Spectrometry) assay, we show that the cyanogenic glucosides linamarin and lotaustralin are present in the leaves, sepals, petals, anthers, and nectar of T. repens . Cyanogenic glucosides are generally thought to be defense compounds, releasing toxic hydrogen cyanide upon degradation...
March 13, 2018: Insects
https://www.readbyqxmd.com/read/29533804/the-reduced-risk-insecticide-azadirachtin-poses-a-toxicological-hazard-to-stingless-bee-partamona-helleri-friese-1900-queens
#18
Rodrigo Cupertino Bernardes, Wagner Faria Barbosa, Gustavo Ferreira Martins, Maria Augusta Pereira Lima
Large-scale pesticide application poses a major threat to bee biodiversity by causing a decline in bee populations that, in turn, compromises ecosystem maintenance and agricultural productivity. Biopesticides are considered an alternative to synthetic pesticides with a focus on reducing potential detrimental effects to beneficial organisms such as bees. The production of healthy queen stingless bees is essential for the survival and reproduction of hives, although it remains unknown whether biopesticides influence stingless bee reproduction...
June 2018: Chemosphere
https://www.readbyqxmd.com/read/29530760/beekeeper-arthropathy
#19
Carolina Diez Morrondo, Lucía Pantoja Zarza, Pelayo Brañanova López, Miriam García Arias
An acute inflammatory arthritis of unknown cause has been described in beekeepers in relation to their work with the hives. We present the case of a beekeeper who, after a bee sting, developed arthritis of the interphalangeal joint of the first finger of his left hand. Although the subacute clinical course and the magnetic resonance imaging findings required the differential diagnosis with an infectious process, the rest of the laboratory tests. other imaging studies and the course, together with a history of a similar episode a few years earlier on a finger of the other hand after a bee sting, enabled us to diagnosis this condition...
March 9, 2018: Reumatología Clinica
https://www.readbyqxmd.com/read/29528528/mapping-floral-resources-for-honey-bees-in-new-zealand-at-the-catchment-scale
#20
Anne-Gaelle E Ausseil, John R Dymond, Linda Newstrom
Honey bees require nectar and pollen from flowers: nectar for energy and pollen for growth. The demand for nectar and pollen varies during the year, with more pollen needed in spring for colony population growth and more nectar needed in summer to sustain the maximum colony size and collect surplus nectar stores for winter. Sufficient bee forage is therefore necessary to ensure a healthy bee colony. Land-use changes can reduce the availability of floral resources suitable for bees, thereby increasing the susceptibility of bees to other stressors such as disease and pesticides...
March 12, 2018: Ecological Applications: a Publication of the Ecological Society of America
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