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https://www.readbyqxmd.com/read/29339344/analysis-and-evaluation-of-neuro-peptides-in-honey-bees-exposed-to-pesticides-in-field-conditions
#1
María Del Mar Gómez-Ramos, María José Gómez Ramos, María Martínez Galera, María Dolores Gil García, Amadeo R Fernández-Alba
During the last years, declines in honey bee colonies are being registered worldwide. Cholinergic pesticides and their extensive use have been correlated to the decline of pollinators and there is evidence that pesticides act as neuroendocrine disruptors affecting the metabolism of neuropeptides. However, there is a big absence of studies with quantitative results correlating the effect of pesticide exposure with changes on neuropeptides insects, and most of them are conducted under laboratory conditions, typically with individual active ingredients...
January 13, 2018: Environmental Pollution
https://www.readbyqxmd.com/read/29337369/hepatoprotective-effects-of-the-honey-of-apis-cerana-fabricius-on-bromobenzene-induced-liver-damage-in-mice
#2
Haoan Zhao, Ni Cheng, Liangliang He, Guoxia Peng, Qingqing Liu, Tianchen Ma, Wei Cao
Apis cerana honey (honey of Apis cerana Fabricius), widely distributed in the mountain areas of East Asia, has not been studied fully. The hepatoprotective activity of A. cerana honey was evaluated against bromobenzene-induced liver damage in mice. In high dose, A. cerana honey can significantly alleviate liver injury, as is indicated by the depressed levels of serum alanine aminotransferase (ALT) (59.13%) and aspartate aminotransferase (AST) (79.71%), the inhibited malondialdehyde (MDA) content (63.30%), the elevated activities of superoxide dismutase (SOD) (73...
January 16, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29336808/miniaturized-solid-phase-extraction-of-macrolide-antibiotics-in-honey-and-bovine-milk-using-mesoporous-mcm-41-silica-as-sorbent
#3
Li-Jing Du, Ling Yi, Li-Hong Ye, Yu-Bo Chen, Jun Cao, Li-Qing Peng, Yu-Ting Shi, Qiu-Yan Wang, Yu-Han Hu
A simple and effective method of miniaturized solid-phase extraction (mini-SPE) was developed for the simultaneous purification and enrichment of macrolide antibiotics (MACs) (i.e. azithromycin, clarithromycin, erythromycin, lincomycin and roxithromycin) from honey and skim milk. Mesoporous MCM-41 silica was synthesized and used as sorbent in mini-SPE. Several key parameters affecting the performance of mini-SPE procedure were thoroughly investigated, including sorbent materials, amount of sorbent and elution solvents...
January 3, 2018: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29333938/structure-based-engineering-to-restore-high-affinity-binding-of-an-isoform-selective-anti-tgf%C3%AE-1-antibody
#4
Dana M Lord, Julie J Bird, Denise M Honey, Annie Best, Anna Park, Ronnie R Wei, Huawei Qiu
Metelimumab (CAT192) is a human IgG4 monoclonal antibody developed as a TGFβ1-specific antagonist. It was tested in clinical trials for the treatment of scleroderma but later terminated due to lack of efficacy. Subsequent characterization of CAT192 indicated that its TGFβ1 binding affinity was reduced by ∼50-fold upon conversion from the parental single-chain variable fragment (scFv) to IgG4. We hypothesized this result was due to decreased conformational flexibility of the IgG that could be altered via engineering...
January 15, 2018: MAbs
https://www.readbyqxmd.com/read/29333387/physicochemical-and-antioxidant-properties-of-honeys-from-the-sundarbans-mangrove-forest-of-bangladesh
#5
M Rabiul Islam, Tahmina Pervin, Hemayet Hossain, Badhan Saha, Sheikh Julfikar Hossain
This study evaluated the physicochemical, nutritional, antioxidant, and phenolic properties of ten honey samples from the Sundarbans mangrove forest, Bangladesh. The average pH, electrical conductivity, total dissolved solid, ash, moisture, hydroxymethyl furfural, titrable acidity, and absorbance were 4.3, 0.38 mS/cm, 187.5 ppm, 0.14%, 17.88%, 4.4 mg/kg, 37.7 meq/kg, and 483 mAU, respectively. In the honeys, the average contents of Ca, Cu, Fe, K, Mg, Mn, and Na were 95.5, 0.19, 6.4, 302, 39.9, 3.4, and 597 ppm, respectively, whereas Cd, Cr, Pb, and Ni were not found...
December 2017: Preventive Nutrition and Food Science
https://www.readbyqxmd.com/read/29330449/lithium-chloride-effectively-kills-the-honey-bee-parasite-varroa-destructor-by-a-systemic-mode-of-action
#6
Bettina Ziegelmann, Elisabeth Abele, Stefan Hannus, Michaela Beitzinger, Stefan Berg, Peter Rosenkranz
Honey bees are increasingly important in the pollination of crops and wild plants. Recent reports of the weakening and periodical high losses of managed honey bee colonies have alarmed beekeeper, farmers and scientists. Infestations with the ectoparasitic mite Varroa destructor in combination with its associated viruses have been identified as a crucial driver of these health problems. Although yearly treatments are required to prevent collapses of honey bee colonies, the number of effective acaricides is small and no new active compounds have been registered in the past 25 years...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29329850/gc-ms-profiling-descriptive-sensory-analysis-and-consumer-acceptance-of-costa-rican-papaya-carica-papaya-l-fruit-purees
#7
Veronika M Lieb, Patricia Esquivel, Elba Cubero Castillo, Reinhold Carle, Christof B Steingass
Volatiles of papaya purees from four Costa Rican cultivars were analysed by solid-phase microextraction and gas chromatography-mass spectrometry. A total of 83 volatiles was assigned in the purees, of which 19 were detected for the first time as papaya constituents. As revealed by multivariate statistics, i.e., principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA), the purees may be allocated to terpene- and lactone-rich ('SH-5'), ester-containing ('Criolla'), and intermediate chemotypes ('Pococí' and 'Silvestre')...
May 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29327047/histopathological-and-inflammatory-features-of-chronically-discharging-open-mastoid-cavities-secondary-analysis-of-a-randomized-clinical-trial
#8
Darius Henatsch, Sultan Alsulami, Adriaan M Duijvestijn, Jack P Cleutjens, Carine J Peutz-Kootstra, Robert J Stokroos
Importance: Many patients with an open radical mastoid cavity experience therapy-resistant otorrhea. Little is known about the underlying histopathological substrate of unstable cavities and the correlation with treatment failure. Objective: To study the histopathological and inflammatory features of chronically discharging open radical mastoid cavities and the influence of different treatments. Design, Setting, and Participants: This secondary analysis of a randomized clinical trial was a histopathology study of tissue samples of a cohort of 30 patients with a chronically discharging open mastoid cavity...
January 11, 2018: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29325643/the-secret-life-of-exosomes-what-bees-can-teach-us-about-next-generation-therapeutics
#9
REVIEW
Eduardo Marbán
Mechanistic exploration has pinpointed nanosized extracellular vesicles, known as exosomes, as key mediators of the benefits of cell therapy. Exosomes appear to recapitulate the benefits of cells and more. As durable azoic entities, exosomes have numerous practical and conceptual advantages over cells. Will cells end up just being used to manufacture exosomes, or will they find lasting value as primary therapeutic agents? Here, a venerable natural process-the generation of honey-serves as an instructive parable...
January 16, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29324841/honey-bee-apis-mellifera-nurses-do-not-consume-pollens-based-on-their-nutritional-quality
#10
Vanessa Corby-Harris, Lucy Snyder, Charlotte Meador, Trace Ayotte
Honey bee workers (Apis mellifera) consume a variety of pollens to meet the majority of their requirements for protein and lipids. Recent work indicates that honey bees prefer diets that reflect the proper ratio of nutrients necessary for optimal survival and homeostasis. This idea relies on the precept that honey bees evaluate the nutritional composition of the foods provided to them. While this has been shown in bumble bees, the data for honey bees are mixed. Further, there is controversy as to whether foragers can evaluate the nutritional value of pollens, especially if they do not consume it...
2018: PloS One
https://www.readbyqxmd.com/read/29324426/a-sweet-solution-the-use-of-medical-grade-honey-on-oral-mucositis-in-the-pediatric-oncology-patient
#11
Ferne T Elsass
INTRODUCTION: Pediatric patients develop mucositis when receiving treatments such as chemotherapy and radiation; the most common and sensitive is oral mucositis. Mouth rinses containing antimicrobial, antihistamine, and analgesic medications are the mainstay for pediatric patients; however, patients often refuse these rinses due to the taste or texture. Also, patients under 1 year of age are unable to use these products. OBJECTIVE: Herein, the improvement of oral mucositis with standard oral care and additional use of active Leptospermum honey in pediatric oncology patients after chemotherapy is demonstrated...
December 2017: Wounds: a Compendium of Clinical Research and Practice
https://www.readbyqxmd.com/read/29324040/neonicotinoids-and-other-insect-nicotinic-receptor-competitive-modulators-progress-and-prospects
#12
John E Casida
Neonicotinoids (neonics) are remarkably effective as plant systemics to control sucking insects and for flea control on dogs and cats. The nitroimines imidacloprid, clothianidin, thiamethoxam, and dinotefuran are the leaders among the seven commercial neonics that also include the nitromethylene nitenpyram, the nitromethylene-derived cycloxaprid, and the cyanoimines acetamiprid and thiacloprid. Honey bees are highly sensitive to the nitroimines and nitromethylenes, but the cyanoimines are less toxic. All neonics are nicotinic acetylcholine receptor (nAChR) agonists with a common mode of action, target-site cross-resistance, and much higher potency on insect than mammalian nAChRs at defined binding sites...
January 7, 2018: Annual Review of Entomology
https://www.readbyqxmd.com/read/29322382/tandem-recruitment-and-foraging-in-the-ponerine-ant-pachycondyla-harpax-fabricius
#13
C Grüter, M Wüst, A P Cipriano, F S Nascimento
Tandem running is a common recruitment strategy in ant species with small colony sizes. During a tandem run, an informed leader guides a usually naïve nestmate to a food source or a nest site. Some species perform tandem runs only during house hunting, suggesting that tandem running does not always improve foraging success in species known to use tandem running as a recruitment strategy, but more natural history information on tandem running under natural conditions is needed to better understand the adaptive significance of tandem recruitment in foraging...
January 10, 2018: Neotropical Entomology
https://www.readbyqxmd.com/read/29321987/gelam-honey-attenuates-ovalbumin-induced-airway-inflammation-in-a-mice-model-of-allergic-asthma
#14
Nur Salme Suhana Shamshuddin, Rozaini Mohd Zohdi
Allergic asthma is a chronic inflammatory disorder of the pulmonary airways. Gelam honey has been proven to possess anti-inflammatory property with great potential to treat an inflammatory condition. However, the effect of ingestion of Gelam honey on allergic asthma has never been studied. This study aimed to investigate the efficacy of Gelam honey on the histopathological changes in the lungs of a mice model of allergic asthma. Forty-two Balb/c mice were divided into seven groups: control, I, II, III, IV, V and VI group...
January 2018: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29321884/gut-microbiota-composition-is-associated-with-environmental-landscape-in-honey-bees
#15
Julia C Jones, Carmelo Fruciano, Falk Hildebrand, Hasan Al Toufalilia, Nicholas J Balfour, Peer Bork, Philipp Engel, Francis Lw Ratnieks, William Oh Hughes
There is growing recognition that the gut microbial community regulates a wide variety of important functions in its animal hosts, including host health. However, the complex interactions between gut microbes and environment are still unclear. Honey bees are ecologically and economically important pollinators that host a core gut microbial community that is thought to be constant across populations. Here, we examined whether the composition of the gut microbial community of honey bees is affected by the environmental landscape the bees are exposed to...
January 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29321298/the-worldwide-importance-of-honey-bees-as-pollinators-in-natural-habitats
#16
Keng-Lou James Hung, Jennifer M Kingston, Matthias Albrecht, David A Holway, Joshua R Kohn
The western honey bee (Apis mellifera) is the most frequent floral visitor of crops worldwide, but quantitative knowledge of its role as a pollinator outside of managed habitats is largely lacking. Here we use a global dataset of 80 published plant-pollinator interaction networks as well as pollinator effectiveness measures from 34 plant species to assess the importance of A. mellifera in natural habitats. Apis mellifera is the most frequent floral visitor in natural habitats worldwide, averaging 13% of floral visits across all networks (range 0-85%), with 5% of plant species recorded as being exclusively visited by A...
January 10, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29321240/pigment-dispersing-factor-expressing-neurons-convey-circadian-information-in-the-honey-bee-brain
#17
Katharina Beer, Esther Kolbe, Noa B Kahana, Nadav Yayon, Ron Weiss, Pamela Menegazzi, Guy Bloch, Charlotte Helfrich-Förster
Pigment-Dispersing Factor (PDF) is an important neuropeptide in the brain circadian network of Drosophila and other insects, but its role in bees in which the circadian clock influences complex behaviour is not well understood. We combined high-resolution neuroanatomical characterizations, quantification of PDF levels over the day and brain injections of synthetic PDF peptide to study the role of PDF in the honey bee Apis mellifera We show that PDF co-localizes with the clock protein Period (PER) in a cluster of laterally located neurons and that the widespread arborizations of these PER/PDF neurons are in close vicinity to other PER-positive cells (neurons and glia)...
January 2018: Open Biology
https://www.readbyqxmd.com/read/29319821/probiotic-potency-of-lactobacillus-plantarum-kx519413-and-kx519414-isolated-from-honey-bee-gut
#18
C Honey Chandran, T R Keerthi
The Indian honey bee-Apis cerana indica, which harbors an abundant and diverse range of lactic acid bacteria (LAB) in their gut with beneficial effects was used as the source for the isolation of LAB. In the present study, two LAB isolates from honey bee gut were selected primarily based on their phenotypic and selective biochemical characterization, further PCR and identified using 16S rRNA sequencing as Lactobacillus plantarum and were registered in National Centre for Biotechnology Information (NCBI) under accession number KX519413 and KX519414...
January 8, 2018: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/29318311/methyl-salicylate-based-vortex-assisted-surfactant-enhanced-emulsification-microextraction-and-hplc-for-determination-of-fungicides-in-honey-samples
#19
Yanawath Santaladchaiyakit, Jutamas Bunchamnan, Darunee Tongsa, Supalax Srijaranai
Methyl salicylate based vortex-assisted surfactant-enhanced emulsification microextraction (MeSA-VASEME) has been developed and applied for rapid preconcentration of fungicides (i.e., carbendazim, thiabendazole, and fluberidazole) in honey samples followed by high performance liquid chromatographic analysis. MeSA was used as an extraction solvent, while surfactant was used to enhance the extraction performance under the dispersion by vortex agitation. The optimum MeSA-VASEME conditions were 100 μL MeSA, 2...
December 2017: Acta Chimica Slovenica
https://www.readbyqxmd.com/read/29315757/unexpected-effect-of-mad-honey-poisoning-on-accessory-pathway
#20
Adem Atici, Samim Emet, Ahmet Kaya Bilge, Kamil Adalet
No abstract text is available yet for this article.
January 8, 2018: Pacing and Clinical Electrophysiology: PACE
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