keyword
MENU ▼
Read by QxMD icon Read
search

Honeybee

keyword
https://www.readbyqxmd.com/read/28515236/resonance-frequencies-of-honeybee-apis-mellifera-wings
#1
Christopher J Clark, Andrew M Mountcastle, Emily Mistick, Damian O Elias
During flight, insect wings bend and twist under the influence of aerodynamic and inertial forces. We tested whether wing resonance of honeybees (Apis mellifera) matches the wingbeat frequency, against the 'stiff element' hypothesis that the wing's first longitudinal mode exceeds the wingbeat frequency. Six bees were immobilized with their right wing pair outspread, and stimulated with a shaker while the normal modes were recorded with a Scanning Doppler Laser Vibrometer. The lowest normal mode of the wings was the first longitudinal bending mode, and at 602±145 Hz, greater than the wingbeat frequency of 234 Hz±13...
May 17, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28513757/-new-drugs-for-horses-and-production-animals-in-2016
#2
Ilka Ute Emmerich
In 2016, only one newly developed active pharmaceutical ingredient for horses and food-producing animals was released on the German market for veterinary drug products. The immunomodulator Pegbovigrastim is now available as an injection solution for cattle (Imrestor(®)). Four established veterinary active pharmaceutical ingredients are available for further species: the ectoparasitic Amitraz (Apitraz(®)) from the triazapentadiene group was additionally authorized for honeybees, the expectorant Bromhexine (Exflow(®) Vet) for chickens, turkeys and ducks and the macrolide antibiotic Gamithromycin (Zactran(®)) for pigs...
May 17, 2017: Tierärztliche Praxis. Ausgabe G, Grosstiere/Nutztiere
https://www.readbyqxmd.com/read/28512345/phosphoproteome-analysis-reveals-phosphorylation-underpinnings-in-the-brains-of-nurse-and-forager-honeybees-apis-mellifera
#3
Gebreamlak Bezabih, Han Cheng, Bin Han, Mao Feng, Yu Xue, Han Hu, Jianke Li
The honeybee brain is a central organ in regulating wide ranges of honeybee biology, including life transition from nurse to forager bees. Knowledge is still lacking on how protein phosphorylation governs the neural activity to drive the age-specific labor division. The cerebral phosphoproteome of nurse and forager honeybees was characterized using Ti(4+)-IMAC phosphopeptide enrichment mass-spectrometry-based proteomics and protein kinases (PKs) were predicted. There were 3,077 phosphosites residing on 3,234 phosphopeptides from 1004 phosphoproteins in the nurse bees...
May 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28510462/anti-plasmodial-assessment-of-four-different-iranian-propolis-extracts
#4
Houshang Afrouzan, Sedigheh Zakeri, Akram Abouie Mehrizi, Sara Molasalehi, Azar Tahghighi, Mohamad Ali Shokrgozar, Ali Es-Haghi, Navid Dinparast Djadid
BACKGROUND: Eradication of malaria will depend on discovery of new intervention tools such as anti-malarial drugs. Due to the increasing interest in the application of propolis against significant clinical pathogenic agents, the aim of the present investigation was to evaluate the anti-plasmodial effect of Iranian propolis extracts against chloroquine (CQ)-sensitive Plasmodium falciparum 3D7 and Plasmodium berghei (ANKA strain). METHODS: Crude samples of honeybee (Apis mellifera) propolis were collected from four provinces in northern (Kalaleh, Golestan), northeastern (Chenaran, Razavi Khorasan), central (Taleghan, Alborz) and western (Morad Beyg, Hamedan) areas of Iran with different types of flora...
May 2017: Archives of Iranian Medicine
https://www.readbyqxmd.com/read/28509378/evaluation-of-the-skin-phototoxicity-and-photosensitivity-of-honeybee-venom
#5
Sang Mi Han, In Phyo Hong, Soon Ok Woo, Se Gun Kim, He Rye Jang, Kwan Kyu Park
OBJECTIVE: Bee (Apis mellifera L.) venom (BV) has been used as a cosmetic ingredient owing to its anti-aging, anti-inflammatory, and antibacterial effects. The aim of this study was to assess the skin safety of BV. METHODS: For this purpose, skin phototoxicity and sensitization tests were conducted in healthy male Hartley guinea pigs. The animals were divided into three groups (n=5) for the phototoxicity test: G1 (negative control), G2 (BV gel treatment), and G3 (positive control)...
May 16, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28497368/honeydew-honey-biological-effects-on-skin-cells
#6
Simona Martinotti, Giorgio Calabrese, Elia Ranzato
Honey is a natural product well known by humankind and now reconsidered for its use as topical agent for wound and burn treatments. Floral honey is made by honeybees from the nectar of blossoms, while honeydew honey is prepared from secretions of plants or excretions of plant-sucking insects. Chemical composition is different between blossom and honeydew honeys and there is very few information about the biological properties of honeydew honey. So, this study was specifically designed to explore the potential wound healing effects of the honeydew honey...
May 11, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28494206/component-resolved-evaluation-of-the-content-of-major-allergens-in-therapeutic-extracts-for-specific-immunotherapy-of-honeybee-venom-allergy
#7
Simon Blank, Stefanie Etzold, Ulf Darsow, Maximilian Schiener, Bernadette Eberlein, Dennis Russkamp, Sara Wolf, Anke Graessel, Tilo Biedermann, Markus Ollert, Carsten B Schmidt-Weber
Allergen-specific immunotherapy is the only curative treatment for honeybee venom (HBV) allergy, which is able to protect against further anaphylactic sting reactions. Recent analyses on a molecular level have demonstrated that HBV represents a complex allergen source that contains more relevant major allergens than formerly anticipated. Moreover, allergic patients show very diverse sensitization profiles with the different allergens. HBV-specific immunotherapy is conducted with HBV extracts which are derived from pure venom...
May 11, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28485877/diagnostic-precision-of-component-resolved-vs-extract-based-in-vitro-diagnosis-of-hymenoptera-venom-allergy-effects-on-clinical-management
#8
Florian Seyfarth, Diana Miguel, Sibylle Schliemann, Uta-Christina Hipler
BACKGROUND: The measurement of specific IgE (sIgE) antibodies plays a key role in the diagnosis of honeybee and wasp venom allergy. In recent years, component-resolved diagnosis (CRD) has been introduced, which allows for the measurement of sIgE antibodies against Api m 1, Ves v 1, Ves v 5, and Pol d 5, as well as cross-reactive carbohydrate determinants (CCDs). These tests are intended to help determine the clinical relevance of any given sensitization, especially in patients with dual sensitization...
May 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28485584/modelling-effects-of-honeybee-behaviors-on-the-distribution-of-pesticide-in-nectar-within-a-hive-and-resultant-in-hive-exposure
#9
Jack Charles Oliver Rumkee, Matthias A Becher, Pernille Thorbek, Juliet L Osborne
Recently, the causes of honeybee colony losses have been intensely studied, showing that there are multiple stressors implicated in colony declines, one stressor being the exposure to pesticides. Measuring exposure of individual bees within a hive to pesticide is at least as difficult as assessing the potential exposure of foraging bees to pesticide. We present a model to explore how heterogeneity of pesticide distribution on a comb in the hive can be driven by worker behaviors. The model contains simplified behaviors to capture the extremes of possible heterogeneity of pesticide location/deposition within the hive to compare with exposure levels estimated by averaging values across the comb...
May 9, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28480618/beyond-chemoreception-diverse-tasks-of-soluble-olfactory-proteins-in-insects
#10
Paolo Pelosi, Immacolata Iovinella, Jiao Zhu, Guirong Wang, Francesca R Dani
Odorant-binding proteins (OBPs) and chemosensory proteins (CSPs) are regarded as carriers of pheromones and odorants in insect chemoreception. These proteins are typically located in antennae, mouth organs and other chemosensory structures; however, members of both classes of proteins have been detected recently in other parts of the body and various functions have been proposed. The best studied of these non-sensory tasks is performed in pheromone glands, where OBPs and CSPs solubilise hydrophobic semiochemicals and assist their controlled release into the environment...
May 7, 2017: Biological Reviews of the Cambridge Philosophical Society
https://www.readbyqxmd.com/read/28472327/contrasting-sex-and-caste-dependent-pirna-profiles-in-the-transposon-depleted-haplodiploid-honeybee-apis-mellifera
#11
Wei-Wen Wang, Regan Ashby, Hua Ying, Ryszard Maleszka, Sylvain Forêt
Protecting genome integrity against transposable elements is achieved by intricate molecular mechanisms involving PIWI proteins, their associated small RNAs (piRNAs), and epigenetic modifiers such as DNA methylation. Eusocial bees, in particular the Western honeybee, Apis mellifera, have one of the lowest contents of transposable elements in the animal kingdom, and, unlike other animals with a functional DNA methylation system, do not methylate their transposons. This raises the question of whether the PIWI machinery has been retained in this species...
May 4, 2017: Genome Biology and Evolution
https://www.readbyqxmd.com/read/28472083/gene-expression-and-immunohistochemical-analyses-of-mkast-suggest-its-late-pupal-and-adult-specific-functions-in-the-honeybee-brain
#12
Atsuhiro Yamane, Hiroki Kohno, Tsubomi Ikeda, Kumi Kaneko, Atsushi Ugajin, Toshiyuki Fujita, Takekazu Kunieda, Takeo Kubo
In insect brains, the mushroom bodies (MBs, a higher center) comprise intrinsic neurons, termed Kenyon cells (KCs). We previously showed that the honeybee (Apis mellifera L.) MBs comprise four types of KCs, in addition to the previously known three types of KCs: class I large-type KCs (lKCs), class I small-type KCs (sKCs) and class II KCs, novel class I 'middle-type' KCs (mKCs), which are characterized by the preferential expression of a gene, termed mKast. Although mKast was originally discovered during the search for genes whose expression is enriched in the optic lobes (OLs) in the worker brain, subsequent analysis revealed that the gene is expressed in an mKC-preferential manner in the MBs...
2017: PloS One
https://www.readbyqxmd.com/read/28468662/heterologous-expression-of-abaecin-peptide-from-apis-mellifera-in-pichia-pastoris
#13
Denis Prudencio Luiz, Juliana Franco Almeida, Luiz Ricardo Goulart, Nilson Nicolau-Junior, Carlos Ueira-Vieira
BACKGROUND: Antimicrobial peptides (AMPs) are the first line of host immune defense against pathogens. Among AMPs from the honeybee Apis mellifera, abaecin is a major broad-spectrum antibacterial proline-enriched cationic peptide. RESULTS: For heterologous expression of abaecin in Pichia pastoris, we designed an ORF with HisTag, and the codon usage was optimized. The gene was chemically synthetized and cloned in the pUC57 vector. The new ORF was sub-cloned in the pPIC9 expression vector and transformed into P...
May 3, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28464529/floral-resource-availability-from-groundcover-promotes-bee-abundance-in-coffee-agroecosystems
#14
Kaleigh Fisher, David J Gonthier, Katherine K Ennis, Ivette Perfecto
Patterns of bee abundance and diversity across different spatial scales have received thorough research consideration. However, the impact of short and long term temporal resource availability on biodiversity has been less explored. This is highly relevant in tropical agricultural systems for pollinators, as many foraging periods of pollinators extend beyond flowering of any single crop species. In this study, we sought to understand how bee communities in tropical agroecosystems changed between seasons, and if short and long term floral resource availability influenced their diversity and abundance...
May 2, 2017: Ecological Applications: a Publication of the Ecological Society of America
https://www.readbyqxmd.com/read/28463596/characterization-and-comparison-of-recombinant-honeybee-chymotrypsin-like-protease-hclpase-expressed-in-escherichia-coli-and-insect-cells
#15
Takuma Matsuoka, Takuji Kawashima, Tadashi Nakamura, Tomio Yabe
We previously found a novel chymotrypsin-like protease in honeybee, designated as HCLPase. The recombinant enzyme expressed in insect cells was produced and compared to that in Escherichia coli. Both enzymes showed equivalent molecular size and specificity. However, HCLPase produced in insect cells showed higher specific activity. The C-terminal cleavage sites of HCLPase were phenylalanine, leucine, and tyrosine residues.
May 2, 2017: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/28458885/bee-healthy-honeybee-physiology-reflects-landscape-and-supports-conservation
#16
Björn Illing
No abstract text is available yet for this article.
2017: Conservation Physiology
https://www.readbyqxmd.com/read/28450409/honeybees-use-the-skyline-in-orientation
#17
William F Towne, Antoinette E Ritrovato, Antonina Esposto, Duncan F Brown
In view-based navigation, animals acquire views of the landscape from various locations and then compare the learned views with current views in order to orient in certain directions or move toward certain destinations. One landscape feature of great potential usefulness in view-based navigation is the skyline, the silhouette of terrestrial objects against the sky, as it is distant, relatively stable, and easy to detect. The skyline has been shown to be important in the view-based navigation of ants, but no flying insect has yet been shown definitively to use the skyline in this way...
April 27, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28449942/prevalence-of-honey-bee-apis-mellifera-viruses-in-temperate-and-subtropical-regions-from-argentina
#18
Ana I Molineri, Adriana Pacini, Agostina Giacobino, Natalia Bulacio-Cagnolo, Andrea Aignasse, Luis Zago, Norberto Fondevila, Cecilia Ferrufino, Julieta Merke, Emanuel Orellano, Ezequiel Bertozzi, Hernán Pietronave, Marcelo L Signorini
In Argentina, bee virus studies are still incipient, and there are no studies regarding the climatic effect. The aim of this study was to assess and compare the presence of honeybee viruses in different climatic regions from Argentina. A total of 385 colonies distributed in five Argentinean eco-regions were examined to evaluate the percentage of infestation with Varroa destructor and the presence of seven virus species (Deformed wing virus, DWV; Acute bee paralysis virus, ABPV; Chronic bee paralysis virus, CBPV; Black queen cell virus, BQCV; Kashmer bee virus, KBV; Israeli acute bee paralysis virus, IAPV; and Sacbrood bee virus, SBV) after honey yield...
April 24, 2017: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/28447982/evaluating-the-effect-of-environmental-chemicals-on-honey-bee-development-from-the-individual-to-colony-level
#19
Chong-Yu Ko, Yue-Wen Chen, Yu-Shin Nai
The presence of pesticides in the beekeeping environment is one of the most serious problems that impacts the life of a honey bee. Pesticides can be brought back to the beehive after the bees have foraged on flowers that have been sprayed with pesticides. Pesticide contaminated food can be exchanged between workers which then feed larvae and therefore can potentially affect the development of honey bees. Thus, residual pesticides in the environment can become a chronic damaging factor to honey bee populations and gradually lead to colony collapse...
April 1, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28446703/efficient-use-of-sentinel-sites-detection-of-invasive-honeybee-pests-and-diseases-in-the-uk
#20
Matt J Keeling, Samik Datta, Daniel N Franklin, Ivor Flatman, Andy Wattam, Mike Brown, Giles E Budge
Sentinel sites, where problems can be identified early or investigated in detail, form an important part of planning for exotic disease outbreaks in humans, livestock and plants. Key questions are: how many sentinels are required, where should they be positioned and how effective are they at rapidly identifying new invasions? The sentinel apiary system for invasive honeybee pests and diseases illustrates the costs and benefits of such approaches. Here, we address these issues with two mathematical modelling approaches...
April 2017: Journal of the Royal Society, Interface
keyword
keyword
69222
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"