keyword
MENU ▼
Read by QxMD icon Read
search

Bee

keyword
https://www.readbyqxmd.com/read/28432563/complete-sequences-of-the-rna-1-and-rna-2-segments-of-chronic-bee-paralysis-virus-strain-cbpv-bj-detected-in-china
#1
Beibei Li, Shuai Deng, Dahe Yang, Chunsheng Hou, Qingyun Diao
Chronic bee paralysis virus (CBPV) is an important viral pathogen that affects adult bees. Although several CBPV strains have been reported, little information has been obtained from China. In this study, two major segments of the CBPV Chinese isolate CBPV-BJ, RNA 1 and RNA 2, were determined to be 3657 and 2267 nucleotides (nt) in length, respectively. RNA 1 and RNA 2 contained three and four open reading frames (ORFs), respectively, which agreed with known reference strains (EU122229 and EU122230). The RNA 1 had 98% nucleotide sequence identity to a known Chinese strain (KU950353), and RNA 2 had 97% nucleotide sequence identity to another Chinese strain (KU950354)...
April 21, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28432104/dancing-attraction-followers-of-honey-bee-tremble-and-waggle-dances-exhibit-similar-behaviors
#2
Calvin Lam, Yanlei Li, Tim Landgraf, James Nieh
The function of the honey bee tremble dance and how it attracts signal receivers is poorly understood. We tested the hypothesis that tremble followers and waggle followers exhibit the same dance following behavior. If correct, this would unify our understanding of dance following, provide insight into dance information transfer, and offer a way to identify the signal receivers of tremble dance information. Followers showed similar initial attraction to and tracking of dancers. However, waggle dancers were faster than tremble dancers, and follower forward, sideways, and angular velocities were generally similar to the velocities of their respective dancers...
April 21, 2017: Biology Open
https://www.readbyqxmd.com/read/28432089/preparing-future-doctors-for-palliative-care-views-of-course-organisers
#3
Steven Walker, Jane Gibbins, Paul Paes, Stephen Barclay, Astrid Adams, Madawa Chandratilake, Faye Gishen, Philip Lodge, Bee Wee
BACKGROUND: Effective training at medical school is essential to prepare new doctors to safely manage patients with palliative care (PC) and end of life care (EOLC) needs. The contribution of undergraduate PC course organisers is central but their collective views regarding role are unknown. OBJECTIVE: To survey attitudes of PC course organisers regarding their course, organisation, the adequacy of training provided and level of personal satisfaction. METHODS: An anonymised, multifactorial, web-based questionnaire was devised, tested, modified and then sent to lead PC course organisers at all UK medical schools...
April 21, 2017: BMJ Supportive & Palliative Care
https://www.readbyqxmd.com/read/28430801/honey-bees-preferentially-consume-freshly-stored-pollen
#4
Mark J Carroll, Nicholas Brown, Craig Goodall, Alexandra M Downs, Timothy H Sheenan, Kirk E Anderson
Honey bees (Apis mellifera) collect and store both honey and pollen in preserved forms. Pollen storage involves the addition of honey or nectar and oral secretions to pollen granules. It is controversial whether the duration of pollen storage alters the palatability or nutritive value of the pollen storage medium. We examined how bees utilize different-aged stored pollen during an extended pollen flow. The deposition of pollen into wax cells and subsequent consumption were monitored daily on 18 brood frames from 6 colonies over an 8d observation period...
2017: PloS One
https://www.readbyqxmd.com/read/28429131/the-first-comprehensive-molecular-detection-of-six-honey-bee-viruses-in-iran-in-2015-2016
#5
Mohammadreza Ghorani, Omid Madadgar, Arash Ghalyanchi Langeroudi, Mohammadreza Rezapanah, Sedigheh Nabian, Hesameddin Akbarein, Reza Kh Farahani, Hossein Maghsoudloo, Hamed Abdollahi, Mohammad Forsi
At least 18 viruses have been reported in the honey bee (Apis mellifera L.). However, severe diseases in honey bees are mainly caused by six viruses, and these are the most important in beekeeping. These viruses include: deformed wing virus (DWV), acute bee paralysis virus (ABPV), chronic bee paralysis virus (CBPV), sacbrood virus (SBV), kashmir bee virus (KBV), and black queen cell virus (BQCV). In this study, we evaluated 89 Iranian honey bee apiaries (during the period 2015-2016) suffering from symptoms of depopulation, sudden collapse, paralysis, or dark coloring, by employing reverse transcription-PCR...
April 20, 2017: Archives of Virology
https://www.readbyqxmd.com/read/28428861/does-the-morphological-fit-between-flowers-and-pollinators-affect-pollen-deposition-an-experimental-test-in-a-buzz-pollinated-species-with-anther-dimorphism
#6
Lislie Solís-Montero, Mario Vallejo-Marín
Some pollination systems, such as buzz-pollination, are associated with floral morphologies that require a close physical interaction between floral sexual organs and insect visitors. In these systems, a pollinator's size relative to the flower may be an important feature determining whether the visitor touches both male and female sexual organs and thus transfers pollen between plants efficiently. To date, few studies have addressed whether in fact the "fit" between flower and pollinator influences pollen transfer, particularly among buzz-pollinated species...
April 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28428804/morphogenesis-of-honeybee-hypopharyngeal-gland-during-pupal-development
#7
Sascha Peter Klose, Daniel Rolke, Otto Baumann
BACKGROUND: The hypopharyngeal gland of worker bees contributes to the production of the royal jelly fed to queens and larvae. The gland consists of thousands of two-cell units that are composed of a secretory cell and a duct cell and that are arranged in sets of about 12 around a long collecting duct. RESULTS: By fluorescent staining, we have examined the morphogenesis of the hypopharyngeal gland during pupal life, from a saccule lined by a pseudostratified epithelium to the elaborate organ of adult worker bees...
2017: Frontiers in Zoology
https://www.readbyqxmd.com/read/28427951/uncovering-the-immune-responses-of-apis-mellifera-ligustica-larval-gut-to-ascosphaera-apis-infection-utilizing-transcriptome-sequencing
#8
Dafu Chen, Rui Guo, Xijian Xu, Cuiling Xiong, Qin Liang, Yanzhen Zheng, Qun Luo, Zhaonan Zhang, Zhijian Huang, Dhiraj Kumar, Weijun Xi, Xuan Zou, Min Liu
Honeybees are susceptible to a variety of diseases, including chalkbrood, which is capable of causing huge losses of both the number of bees and colony productivity. This research is designed to characterize the transcriptome profiles of Ascosphaera apis-treated and un-treated larval guts of Apis mellifera ligustica in an attempt to unravel the molecular mechanism underlying the immune responses of western honeybee larval guts to mycosis. In this study, 24, 296 and 2157 genes were observed to be differentially expressed in A...
April 18, 2017: Gene
https://www.readbyqxmd.com/read/28424101/limited-impacts-of-truck-based-ultra-low-volume-applications-of-mosquito-adulticides-on-mortality-in-honey-bees-apis-mellifera
#9
F D Rinkevich, J W Margotta, V Pokhrel, T W Walker, R H Vaeth, W C Hoffman, B K Fritz, R G Danka, T E Rinderer, R L Aldridge, K J Linthicum, J A Ottea, K B Healy
Adulticides applied against mosquitoes can reduce vector populations during times of high arbovirus transmission. However, impacts of these insecticides on pollinators and other non-target organisms are of concern to mosquito control professionals, beekeepers and others. We evaluated mortality of Culex quinquefasciatus and Apis mellifera when caged insects were exposed to low and high label rates of four common adulticides (Aqua-Pursuit™ [permethrin], Duet® [prallethrin + sumithrin], Fyfanon® [malathion] and Scourge® [resmethrin]) at six distances up to 91...
April 20, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28423330/the-birds-the-bees-and-innate-immunity
#10
Glen N Barber
The cytoplasm is usually a DNA-free zone, but during fertilization, sperm DNA enters oocyte cytoplasm and could potentially trigger a response. Abe et al. (2017) identify NLRP14 as a germ-cell-specific negative regulator of DNA sensing that may be of particular importance during fertilization.
April 18, 2017: Immunity
https://www.readbyqxmd.com/read/28423045/characterization-of-antennal-sensilla-larvae-morphology-and-olfactory-genes-of-melipona-scutellaris-stingless-bee
#11
Washington João de Carvalho, Patrícia Tieme Fujimura, Ana Maria Bonetti, Luiz Ricardo Goulart, Kevin Cloonan, Neide Maria da Silva, Ester Cristina Borges Araújo, Carlos Ueira-Vieira, Walter S Leal
There is growing evidence in the literature suggesting that caste differentiation in the stingless bee, Melipona scutellaris, and other bees in the genus Melipona, is triggered by environmental signals, particularly a primer pheromone. With the proper amount of food and a chemical stimulus, 25% of females emerge as queens, in agreement with a long-standing "two loci/two alleles model" proposed in the 1950s. We surmised that these larvae must be equipped with an olfactory system for reception of these chemical signals...
2017: PloS One
https://www.readbyqxmd.com/read/28422139/high-pesticide-risk-to-honey-bees-despite-low-focal-crop-pollen-collection-during-pollination-of-a-mass-blooming-crop
#12
Scott H McArt, Ashley A Fersch, Nelson J Milano, Lauren L Truitt, Katalin Böröczky
Honey bees provide critical pollination services for many agricultural crops. While the contribution of pesticides to current hive loss rates is debated, remarkably little is known regarding the magnitude of risk to bees and mechanisms of exposure during pollination. Here, we show that pesticide risk in recently accumulated beebread was above regulatory agency levels of concern for acute or chronic exposure at 5 and 22 of the 30 apple orchards, respectively, where we placed 120 experimental hives. Landscape context strongly predicted focal crop pollen foraging and total pesticide residues, which were dominated by fungicides...
April 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28420790/honeybee-gut-microbiota-promotes-host-weight-gain-via-bacterial-metabolism-and-hormonal-signaling
#13
Hao Zheng, J Elijah Powell, Margaret I Steele, Carsten Dietrich, Nancy A Moran
Social bees harbor a simple and specialized microbiota that is spatially organized into different gut compartments. Recent results on the potential involvement of bee gut communities in pathogen protection and nutritional function have drawn attention to the impact of the microbiota on bee health. However, the contributions of gut microbiota to host physiology have yet to be investigated. Here we show that the gut microbiota promotes weight gain of both whole body and the gut in individual honey bees. This effect is likely mediated by changes in host vitellogenin, insulin signaling, and gustatory response...
April 18, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28420117/metabolomic-profiling-of-the-synergistic-effects-of-melittin-in-combination-with-cisplatin-on-ovarian-cancer-cells
#14
Sanad Alonezi, Jonans Tusiimire, Jennifer Wallace, Mark J Dufton, John A Parkinson, Louise C Young, Carol J Clements, Jin-Kyu Park, Jong-Woon Jeon, Valerie A Ferro, David G Watson
Melittin, the main peptide present in bee venom, has been proposed as having potential for anticancer therapy; the addition of melittin to cisplatin, a first line treatment for ovarian cancer, may increase the therapeutic response in cancer treatment via synergy, resulting in improved tolerability, reduced relapse, and decreased drug resistance. Thus, this study was designed to compare the metabolomic effects of melittin in combination with cisplatin in cisplatin-sensitive (A2780) and resistant (A2780CR) ovarian cancer cells...
April 14, 2017: Metabolites
https://www.readbyqxmd.com/read/28420004/hearing-loss-and-risk-of-mild-cognitive-impairment-and-dementia-findings-from-the-singapore-longitudinal-ageing-study
#15
Rebecca Heywood, Qi Gao, Ma Shwe Zin Nyunt, Lei Feng, Mei Sian Chong, Wee Shiong Lim, Philip Yap, Tih-Shih Lee, Keng Bee Yap, Shiou Liang Wee, Tze Pin Ng
AIM: To investigate the associations between hearing loss and prevalent and incident mild cognitive impairment (MCI), dementia and MCI or dementia (all cases). METHODS: Cross-sectional and longitudinal analyses of baseline and follow-up data were performed in a population-based cohort. The baseline sample of 2,599 adults aged ≥55 included 1,515 cognitively normal subjects who were followed up to 8 years. Hearing loss at baseline was determined by the whispered voice test, and MCI and dementia by Mini-Mental State Examination screening, Clinical Dementia Rating scale, neurocognitive tests, MRI, and panel consensus diagnosis...
April 19, 2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/28417225/comparative-proteomic-analysis-provides-insight-into-10-hydroxy-2-decenoic-acid-biosynthesis-in-honey-bee-workers
#16
Xiao-Hui Yang, Shi-Fa Yang, Rui-Ming Wang
10-Hydroxy-2-decenoic acid (10-HDA) is the major compound produced from the mandibular glands (MGs) of honey bee workers. However, little information is available on the molecular mechanisms of 10-HDA biosynthesis. In our study, based on investigating the 10-HDA secretion pattern and the morphological characteristics of MGs from honey bee workers of different ages, a comparative proteomic analysis was performed in the MGs of workers with different 10-HDA production. In total, 59 up-regulated protein species representing 45 unique proteins were identified in high 10-HDA-producing workers by 2-DE-MALDI-TOF/TOF MS...
April 17, 2017: Amino Acids
https://www.readbyqxmd.com/read/28417132/awareness-and-attitudes-of-community-dwelling-individuals-in-singapore-towards-participating-in-advance-care-planning
#17
Qin Xiang Ng, Tricia Zl Kuah, Germaine Jm Loo, Wilbert Hh Ho, Norbert L Wagner, Judy Gk Sng, Grace Mj Yang, Bee Choo Tai
INTRODUCTION: Advance care planning (ACP) is an important aspect of end-of-life care that has been shown to improve patient autonomy in decision-making and reduce stress for surviving family members. Given the rapidly ageing population in Singapore, a greater emphasis on end-of-life care planning is needed. This study therefore sought to examine the awareness and attitudes of the general Singaporean community towards participating in ACP, which are not known hitherto. MATERIALS AND METHODS: A 24-item interviewer-administered questionnaire was constructed and administered via door-to-door survey amongst community-dwelling residents living in Housing and Development Board (HDB) flats across Singapore, selected via a two-stage stratified random sampling...
March 2017: Annals of the Academy of Medicine, Singapore
https://www.readbyqxmd.com/read/28412203/atp-sensitive-inwardly-rectifying-potassium-channel-modulators-alter-cardiac-function-in-honey-bees
#18
Scott T O'Neal, Daniel R Swale, Jeffrey R Bloomquist, Troy D Anderson
ATP-sensitive inwardly rectifying potassium (KATP) channels couple cellular metabolism to the membrane potential of the cell and play an important role in a variety of tissue types, including the insect dorsal vessel, making them a subject of interest not only for understanding invertebrate physiology, but also as a potential target for novel insecticides. Most of what is known about these ion channels is the result of work performed in mammalian systems, with insect studies being limited to only a few species and physiological systems...
April 13, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28411932/arthropod-envenomation-in-north-america
#19
REVIEW
Timothy B Erickson, Navneet Cheema
Arthropods (phylum Arthopoda) account for a higher percentage of morbidity and mortality to humans than do mammalian bites, snake bites, or marine envenomation. They are ubiquitous in domestic dwellings, caves, and campsites and in wilderness settings such as deserts, forests, and lakes. Although arthropods are most intrusive during warmer months, many are active throughout the winter, particularly indoors. Arthropods are also nocturnal and often bite unsuspecting victims while they are sleeping. Encounters with humans are generally defensive, accidental, or reactive...
May 2017: Emergency Medicine Clinics of North America
https://www.readbyqxmd.com/read/28411017/biological-properties-of-propolis-extracts-something-new-from-an-ancient-product
#20
REVIEW
Nada Zabaiou, Allan Fouache, Amalia Trousson, Silvère Baron, Amar Zellagui, Mesbah Lahouel, Jean-Marc A Lobaccaro
Natural products are an interesting source of new therapeutics, especially for cancer therapy as 70% of them have botany origin. Propolis, a resinous mixture that honey bees collect and transform from tree buds, sap flows, or other botanical sources, has been used by ethnobotany and traditional practitioners as early in Egypt as 3000 BC. Enriched in flavonoids, phenol acids and terpene derivatives, propolis has been widely used for its antibacterial, antifungal and anti-inflammatory properties. Even though it is a challenge to standardize propolis composition, chemical analyses have pointed out interesting molecules that also present anti-oxidant and anti-proliferative properties that are of interest in the field of anti-cancer therapy...
April 11, 2017: Chemistry and Physics of Lipids
keyword
keyword
6990
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"