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https://www.readbyqxmd.com/read/28643881/virucides-in-apiculture-persistence-of-surrogate-enterovirus-under-simulated-field-conditions
#1
Jana Prodělalová, Hana Malenovská, Romana Moutelíková, Dalibor Titěra
BACKGROUND: Honeybee viruses were recognized among the most important factors leading to colony losses worldwide. Colony food and faeces were regarded as possible source of infectious viruses able to contaminate environment and equipment of apiaries. Thus, methods for elimination of viruses are required. No cell culture assay for testing the effect of disinfectants on honeybee viruses is available yet. Therefore, surrogate virus was employed for testing of iodophor- and peracetic acid-based disinfectants efficacy in combination with six organic contaminants at +6 °C and +22 °C...
June 23, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28643431/a-study-of-the-origin-of-chloramphenicol-isomers-in-honey
#2
Dmytro Yanovych, Bjorn Berendsen, Zvenyslava Zasadna, Mariana Rydchuk, Tobias Czymai
Due to the unexpected detection of chloramphenicol isomer residues in honey, we have studied the hypothesis of unauthorized or unintended use of unregistered veterinary drug preparations. First we have investigated honey samples in which a discrepancy was observed between the results of the immunological screening methods and the confirmatory LC-MS/MS method. In all samples, previously identified to be contaminated with the banned antibiotic chloramphenicol according to LC-MS/MS only, the presence of dextramycin (SS-para isomer of chloramphenicol) was detected by chiral LC-MS/MS...
June 22, 2017: Drug Testing and Analysis
https://www.readbyqxmd.com/read/28642702/amorpha-fruticosa-a-noxious-invasive-alien-plant-in-europe-or-a-medicinal-plant-against-metabolic-disease
#3
REVIEW
Ekaterina Kozuharova, Adam Matkowski, Dorota Woźniak, Rumiana Simeonova, Zheko Naychov, Clemens Malainer, Andrei Mocan, Seyed M Nabavi, Atanas G Atanasov
Amorpha fruticosa L. (Fabaceae) is a shrub native to North America which has been cultivated mainly for its ornamental features, honey plant value and protective properties against soil erosion. It is registered amongst the most noxious invasive species in Europe. However, a growing body of scientific literature also points to the therapeutic potential of its chemical constituents. Due to the fact that A. fruticosa is an aggressive invasive species, it can provide an abundant and cheap resource of plant chemical constituents which can be utilized for therapeutic purposes...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28638583/comparison-of-the-serum-levels-of-trace-elements-in-areas-with-high-or-low-rate-of-esophageal-cancer
#4
Hamidreza Joshaghani, Honey-Sadat Mirkarimi, Sima Besharat, Gholamreza Roshandel, Omid Sanaei, Mojgan Nejabat
BACKGROUND There is a critical role for trace elements in cancer prevention. Since northeast Iran is known as a high risk area for esophageal cancer, this study was designed to compare the serum levels of some trace elements in high and low rate areas of Golestan province. METHODS We used 240 fasting serum samples obtained in 2011 from eastern and western parts of Golestan province during the non-communicable diseases' screening program. To carry out laboratory examinations, the samples were firstly deproteinated and then the concentrations of the intended elements were measured by an atomic absorption spectrometer...
April 2017: Middle East Journal of Digestive Diseases
https://www.readbyqxmd.com/read/28638373/interactions-between-food-additive-silica-nanoparticles-and-food-matrices
#5
Mi-Ran Go, Song-Hwa Bae, Hyeon-Jin Kim, Jin Yu, Soo-Jin Choi
Nanoparticles (NPs) have been widely utilized in the food industry as additives with their beneficial characteristics, such as improving sensory property and processing suitability, enhancing functional and nutritional values, and extending shelf-life of foods. Silica is used as an anti-caking agent to improve flow property of powered ingredients and as a carrier for flavors or active compounds in food. Along with the rapid development of nanotechnology, the sizes of silica fall into nanoscale, thereby raising concerns about the potential toxicity of nano-sized silica materials...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28634446/are-distal-and-proximal-visual-cues-equally-important-during-spatial-learning-in-mice-a-pilot-study-of-overshadowing-in-the-spatial-domain
#6
Marie Hébert, Jan Bulla, Denis Vivien, Véronique Agin
Animals use distal and proximal visual cues to accurately navigate in their environment, with the possibility of the occurrence of associative mechanisms such as cue competition as previously reported in honey-bees, rats, birds and humans. In this pilot study, we investigated one of the most common forms of cue competition, namely the overshadowing effect, between visual landmarks during spatial learning in mice. To this end, C57BL/6J × Sv129 mice were given a two-trial place recognition task in a T-maze, based on a novelty free-choice exploration paradigm previously developed to study spatial memory in rodents...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28631108/reproduction-number-and-asymptotic-stability-for-the-dynamics-of-a-honey-bee-colony-with-continuous-age-structure
#7
M I Betti, L M Wahl, M Zamir
A system of partial differential equations is derived as a model for the dynamics of a honey bee colony with a continuous age distribution, and the system is then extended to include the effects of a simplified infectious disease. In the disease-free case, we analytically derive the equilibrium age distribution within the colony and propose a novel approach for determining the global asymptotic stability of a reduced model. Furthermore, we present a method for determining the basic reproduction number [Formula: see text] of the infection; the method can be applied to other age-structured disease models with interacting susceptible classes...
June 19, 2017: Bulletin of Mathematical Biology
https://www.readbyqxmd.com/read/28630412/the-challenges-of-predicting-pesticide-exposure-of-honey-bees-at-landscape-level
#8
Noa Simon-Delso, Gilles San Martin, Etienne Bruneau, Christine Delcourt, Louis Hautier
To evaluate the risks of pesticides for pollinators, we must not only evaluate their toxicity but also understand how pollinators are exposed to these xenobiotics in the field. We focused on this last point and modeled honey bee exposure to pesticides at the landscape level. Pollen pellet samples (n = 60) from 40 Belgian apiaries were collected from late July to October 2011 and underwent palynological and pesticide residue analyses. Areas of various crops around each apiary were measured at 4 spatial scales...
June 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28623433/comparison-of-the-effect-of-honey-and-mefenamic-acid-on-the-severity-of-pain-in-women-with-primary-dysmenorrhea
#9
Ë Leila Amiri Farahani, Seyedeh Batool Hasanpoor-Azghdy, Hengameh Kasraei, Tooba Heidari
BACKGROUND AND OBJECTIVE: Primary dysmenorrhea starts simultaneously with menstruation or before it and usually continues for 48-72 h. As a prevalence disorder, it affects about 80-97% of women in the reproductive age. The conventional treatment modalities of primary dysmenorrhea are associated with complications and side effects. In addition, there is a lack of knowledge of the effect of honey on the treatment of primary dysmenorrhea. The objective of this study is to investigate the effect of honey on the severity of pain in women with dysmenorrhea...
June 16, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28620971/the-adipokinetic-hormone-of-the-coleopteran-suborder-adephaga-structure-function-and-comparison-of-distribution-in-other-insects
#10
Gerd Gäde, Heather G Marco
The aim of the current study is to identify the adipokinetic hormone(s) (AKHs) of a basal suborder of the species-rich Coleoptera, the Adephaga, and possibly learn more about the ancestral AKH of beetles. Moreover, we wanted to compare the ancestral AKH with AKHs of more advanced beetles, of which a number are pest insects. This would allow us to assess whether AKH mimetics would be suitable as insecticides, that is, be harmful to the pest species but not to the beneficial species. Nine species of the Adephaga were investigated and all synthesize only one octapeptide in the corpus cardiacum, as revealed by Edman degradation sequencing techniques or by mass spectrometry...
June 16, 2017: Archives of Insect Biochemistry and Physiology
https://www.readbyqxmd.com/read/28619294/impact-of-mulberry-leaf-extract-on-type-2-diabetes-mul-dm-a-randomized-placebo-controlled-pilot-study
#11
Daniel M Riche, Krista D Riche, Honey E East, Elizabeth K Barrett, Warren L May
AIMS: Mulberry leaves have been used anecdotally in Asia to treat many disease states, including glucose abnormalities. Animal and human studies illustrate potential benefit of mulberry leaf extract (MLE) in type 2 diabetes mellitus (DM2). The purpose of this study is to evaluate the glycemic and safety effects of MLE in patients with DM2. MATERIALS & METHODS: This randomized, double-blind, placebo-controlled pilot study evaluated MLE (1000mg standardized) versus matching placebo given three times daily with meals...
June 2017: Complementary Therapies in Medicine
https://www.readbyqxmd.com/read/28618654/comparison-of-honey-and-dextrose-solution-on-post-operative-peritoneal-adhesion-in-rat-model
#12
Vafa Baradaran Rahimi, Reza Shirazinia, Narges Fereydouni, Parvin Zamani, Sousan Darroudi, Amir Hossein Sahebkar, Vahid Reza Askari
BACKGROUND: Peritoneal adhesion between abdominal organs is a complication of surgery. It causes major complications like pain, bowel obstruction, infertility and increases risk of death. Honey is known to have anti-inflammatory and antioxidant properties potentially relevant for adhesive protection. METHODS: Thirty rats were divided into five groups: negative control without any surgical procedure (normal group), control group treated with normal saline, experimental group I treated with 1ml of 10% honey, experimental group II treated with honey at half concentration of group I (honey0...
June 10, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28618362/exposure-of-larvae-to-thiamethoxam-affects-the-survival-and-physiology-of-the-honey-bee-at-post-embryonic-stages
#13
Daiana Antonia Tavares, Claudia Dussaubat, André Kretzschmar, Stephan Malfitano Carvalho, Elaine C M Silva-Zacarin, Osmar Malaspina, Géraldine Bérail, Jean-Luc Brunet, Luc P Belzunces
Under laboratory conditions, the effects of thiamethoxam were investigated in larvae, pupae and emerging honey bees after exposure at larval stages with different concentrations in the food (0.00001 ng/μL, 0.001 ng/μL and 1.44 ng/μL). Thiamethoxam reduced the survival of larvae and pupae and consequently decreased the percentage of emerging honey bees. Thiamethoxam induced important physiological disturbances. It increased acetylcholinesterase (AChE) activity at all developmental stages and increased glutathione-S-transferase (GST) and carboxylesterase para (CaEp) activities at the pupal stages...
June 12, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28614964/thermosonication-and-optimization-of-stingless-bee-honey-processing
#14
K Y Chong, N L Chin, Y A Yusof
The effects of thermosonication on the quality of a stingless bee honey, the Kelulut, were studied using processing temperature from 45 to 90 ℃ and processing time from 30 to 120 minutes. Physicochemical properties including water activity, moisture content, color intensity, viscosity, hydroxymethylfurfural content, total phenolic content, and radical scavenging activity were determined. Thermosonication reduced the water activity and moisture content by 7.9% and 16.6%, respectively, compared to 3.5% and 6...
January 1, 2017: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/28614938/-investigation-on-the-cause-of-death-of-honey-poisoning
#15
L Y Mei, X J Song, X H Liu
No abstract text is available yet for this article.
April 20, 2017: Chinese Journal of Industrial Hygiene and Occupational Diseases
https://www.readbyqxmd.com/read/28613144/paenibacillus-apis-sp-nov-and-paenibacillus-intestini-sp-nov-isolated-from-the-intestine-of-the-honey-bee-apis-mellifera
#16
Ji-Hyun Yun, June-Young Lee, Pil Soo Kim, Mi-Ja Jung, Jin-Woo Bae
Three strains, CBM1T, CBH23 and LAH16T, belonging to the genus Paenibacillus were isolated from the midgut and hindgut of Apis mellifera. Based on 16S rRNA gene sequence analyses and phenotypic characteristics, the three strains represent two novel species. Strains CBM1T and CBH23 formed a group with Paenibacillus puldeungensis CAU 9324T, and strain LAH16T belonged to the Paenibacillusamylolyticus NRRL NRS-290T subgroup of the genus Paenibacillus. The DNA G+C contents of strains CBM1T, CBH23 and LAH16T were 47...
June 14, 2017: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/28611605/different-roles-for-honey-bee-mushroom-bodies-and-central-complex-in-visual-learning-of-colored-lights-in-an-aversive-conditioning-assay
#17
Jenny A Plath, Brian V Entler, Nicholas H Kirkerud, Ulrike Schlegel, C Giovanni Galizia, Andrew B Barron
The honey bee is an excellent visual learner, but we know little about how and why it performs so well, or how visual information is learned by the bee brain. Here we examined the different roles of two key integrative regions of the brain in visual learning: the mushroom bodies and the central complex. We tested bees' learning performance in a new assay of color learning that used electric shock as punishment. In this assay a light field was paired with electric shock. The other half of the conditioning chamber was illuminated with light of a different wavelength and not paired with shocks...
2017: Frontiers in Behavioral Neuroscience
https://www.readbyqxmd.com/read/28607437/single-stranded-rna-viruses-infecting-the-invasive-argentine-ant-linepithema-humile
#18
Monica A M Gruber, Meghan Cooling, James W Baty, Kevin Buckley, Anna Friedlander, Oliver Quinn, Jessica F E J Russell, Alexandra Sébastien, Philip J Lester
Social insects host a diversity of viruses. We examined New Zealand populations of the globally widely distributed invasive Argentine ant (Linepithema humile) for RNA viruses. We used metatranscriptomic analysis, which identified six potential novel viruses in the Dicistroviridae family. Of these, three contigs were confirmed by Sanger sequencing as Linepithema humile virus-1 (LHUV-1), a novel strain of Kashmir bee virus (KBV) and Black queen cell virus (BQCV), while the others were chimeric or misassembled sequences...
June 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28603677/combined-effects-of-waggle-dance-communication-and-landscape-heterogeneity-on-nectar-and-pollen-uptake-in-honey-bee-colonies
#19
Fabian Nürnberger, Ingolf Steffan-Dewenter, Stephan Härtel
The instructive component of waggle dance communication has been shown to increase resource uptake of Apis mellifera colonies in highly heterogeneous resource environments, but an assessment of its relevance in temperate landscapes with different levels of resource heterogeneity is currently lacking. We hypothesized that the advertisement of resource locations via dance communication would be most relevant in highly heterogeneous landscapes with large spatial variation of floral resources. To test our hypothesis, we placed 24 Apis mellifera colonies with either disrupted or unimpaired instructive component of dance communication in eight Central European agricultural landscapes that differed in heterogeneity and resource availability...
2017: PeerJ
https://www.readbyqxmd.com/read/28598383/the-biology-and-control-of-the-greater-wax-moth-galleria-mellonella
#20
REVIEW
Charles A Kwadha, George O Ong'amo, Paul N Ndegwa, Suresh K Raina, Ayuka T Fombong
The greater wax moth, Galleria mellonella Linnaeus, is a ubiquitous pest of the honeybee, Apis mellifera Linnaeus, and Apis cerana Fabricius. The greater wax moth larvae burrow into the edge of unsealed cells with pollen, bee brood, and honey through to the midrib of honeybee comb. Burrowing larvae leave behind masses of webs which causes galleriasis and later absconding of colonies. The damage caused by G. mellonella larvae is severe in tropical and sub-tropical regions, and is believed to be one of the contributing factors to the decline in both feral and wild honeybee populations...
June 9, 2017: Insects
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