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https://www.readbyqxmd.com/read/28643431/a-study-of-the-origin-of-chloramphenicol-isomers-in-honey
#1
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/28642015/convergent-and-unidirectional-evolution-of-extremely-long-aedeagi-in-the-largest-feather-mite-genus-proctophyllodes-acari-proctophyllodidae-evidence-from-comparative-molecular-and-morphological-phylogenetics
#2
Pavel B Klimov, Sergey V Mironov, Barry M OConnor
Proctophyllodid feather mites (400+ species) are permanent (full-time) symbionts commonly occurring on passerine birds. Phenotypic evolution of these mites appears to be greatly influenced by characters related to reproduction (>87.5% of a total of 32 taxonomically important discrete characters) and male genitalic characters (21.9%). Because sexual selection could the major evolutionary driver in this system, we test the theoretical expectation that genitalic or sexually dimorphic characters should evolve more rapidly and divergently then other characters...
June 19, 2017: Molecular Phylogenetics and Evolution
https://www.readbyqxmd.com/read/28641605/state-dependent-parasitism-by-a-facultative-parasite-of-fruit-flies
#3
Lien T Luong, Taylor Brophy, Emily Stolz, Solomon J Chan
Parasites can evolve phenotypically plastic strategies for transmission such that a single genotype can give rise to a range of phenotypes depending on the environmental condition. State-dependent plasticity in particular can arise from individual differences in the parasite's internal state or the condition of the host. Facultative parasites serve as ideal model systems for investigating state-dependent plasticity because individuals can exhibit two life history strategies (free-living or parasitic) depending on the environment...
June 23, 2017: Parasitology
https://www.readbyqxmd.com/read/28641549/relevance-of-cat-and-dog-sensitization-by-skin-prick-testing-in-childhood-eczema-and-asthma
#4
Kam Lun E Lun Hon, Kathy Yin Ching Tsang, Ting Fan Leung
BACKGROUND: Household animal dander has been implicated as aeroallergen in childhood atopic diseases. Many parents seek healthcare advice if household pet keeping may be detrimental in atopic eczema (AE) and atopies. AIM: We investigated if skin sensitization by cat/dog dander was associated with disease severity and quality of life in children with AE. METHODS: Demographics, skin prick test (SPT) results, disease severity (Nottingham eczema severity score NESS), Children Dermatology Life Quality Index (CDLQI), blood IgE and eosinophil counts of a cohort of AE patients were reviewed...
June 14, 2017: Current Pediatric Reviews
https://www.readbyqxmd.com/read/28639466/genetic-characterization-of-sarcoptes-scabiei-from-black-bears-ursus-americanus-and-other-hosts-in-eastern-united-states
#5
Sarah Peltier, Justin D Brown, Mark Ternent, Kevin D Niedringhaus, Krysten Schuler, Elizabeth Bunting, Megan Kirchgessner, Michael John Yabsley
Since the early 1990s there has been an increase in the number of cases and geographic expansion of severe mange in the black bear (Ursus americanus) population in Pennsylvania. Although there are 3 species of mites associated with mange in bears, Sarcoptes scabiei has been identified as the etiologic agent in these Pennsylvania cases. Historically S. scabiei-associated mange in bears has been uncommon and sporadic although it is widespread and relatively common in canid populations. To better understand this recent emergence of sarcoptic mange in bears in Pennsylvania and nearby states, we genetically characterized S...
June 22, 2017: Journal of Parasitology
https://www.readbyqxmd.com/read/28637478/out-of-africa-the-mite-community-arachnida-acariformes-of-the-common-waxbill-estrilda-astrild-linnaeus-1758-passeriformes-estrildidae-in-brazil
#6
Fabio Akashi Hernandes, Barry M OConnor
BACKGROUND: The common waxbill, Estrilda astrild (L., 1758) (Passeriformes: Estrildidae) is a small passerine bird native to Sub-Saharan Africa that has been introduced into several regions of the world. RESULTS: In the present paper, eight mite species (Acariformes) are reported from this host from Brazil, including three species new to science: Montesauria caravela n. sp., M. conquistador n. sp. (Proctophyllodidae), Trouessartia transatlantica n. sp., T. minuscula Gaud & Mouchet, 1958, T...
June 21, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28636743/infestation-of-mites-in-external-auditory-canal
#7
Denis Massatsugu Ueda, Ricardo Borges, José Eduardo Poloni da Silva
No abstract text is available yet for this article.
June 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28636737/is-there-an-association-between-migraine-and-allergic-rhinitis
#8
Işıl Adadan Güvenç, Mustafa Acar, Nuray Bayar Muluk, Nagehan Erdogmus Kucukcan, Cemal Cingi
We conducted a prospective study to evaluate nasal signs and symptoms and to perform allergen-specific immunoglobulin E (IgE) testing to investigate the relationship between migraine and allergic rhinitis. Our study group consisted of 40 patients diagnosed with migraine-22 men and 18 women, aged 21 to 38 years (mean: 25.7). We compared their findings with a control group of 40 healthy adults-15 men and 25 women, aged 19 to 36 years (mean: 25.1). Allergen-specific IgE measurements were obtained with six groups of allergens: fungi, grass pollens, tree pollens, wild herbs, house dust mite 1, and house dust mite 2...
June 2017: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/28636085/herbivore-performance-and-plant-defense-after-sequential-attacks-by-inducing-and-suppressing-herbivores
#9
Elisa Faria de Oliveira, Angelo Pallini, Arne Janssen
It is well known that herbivore-induced plant defence alter host plant quality and can affect the behavior and performance of later arriving herbivores. Effects of sequential attacks by herbivores that either suppress or induce plant defenses are less well studied. We sequentially infested leaves of tomato plants with a strain of the phytophagous spider mite Tetranychus urticae that induces plant defenses and the closely related Tetranychus evansi, which suppresses plant defenses. Plant quality was quantified through oviposition of both spider mite species and by measuring proteinase inhibitor activity using plant material that had been sequentially attacked by both herbivore species...
June 21, 2017: Insect Science
https://www.readbyqxmd.com/read/28634718/mite-communities-acari-mesostigmata-in-young-and-mature-coniferous-forests-after-surface-wildfire
#10
Jacek Kamczyc, Cezary Urbanowski, Emilia Pers-Kamczyc
Density, diversity and assemblage structure of Mesostigmata (cohorts Gamasina and Uropodina) were investigated in Scots pine forests differing in forest age (young: 9-40 years and mature: 83-101 years) in which wildfire occurred. This animal group belongs to the dominant acarine predators playing a crucial role in soil food webs and being important as biological control agents. In total, six forests (three within young and three within mature stands) were inspected in Puszcza Knyszyńska Forest Complex in May 2015...
June 20, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28634717/morphological-diversification-among-island-populations-of-intertidal-mites-acari-oribatida-fortuyniidae-from-the-gal%C3%A3-pagos-archipelago
#11
Tobias Pfingstl, Julia Baumann
The intertidal oribatid mite species Alismobates galapagoensis and Litoribates caelestis occur on the archipelago of Galápagos. To test for morphological variation between populations of different islands, a comprehensive morphometric study was performed. Four A. galapagoensis populations from the islands Bartolomé, Isabela, Santa Cruz and San Cristobal, as well as two L. caelestis populations from Bartolomé and Santa Cruz were investigated. The L. caelestis populations did not show any significant differences whereas the A...
June 20, 2017: Experimental & Applied Acarology
https://www.readbyqxmd.com/read/28634374/behavioural-responses-to-potential-dispersal-cues-in-two-economically-important-species-of-cereal-feeding-eriophyid-mites
#12
Agnieszka Kiedrowicz, Lechosław Kuczyński, Mariusz Lewandowski, Heather Proctor, Anna Skoracka
Passively dispersing organisms should optimise the time and direction of dispersal by employing behaviours that increase their probability of being successfully transported by dispersal agents. We rigorously tested whether two agriculturally important passively-dispersing eriophyoid species, wheat curl mite (WCM) and cereal rust mite (CRM), display behaviours indicating their readiness to depart from current host plants in the presence of potential dispersal cues: wind, an insect vector and presence of a fresh plant...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634005/semaphorin-3e-alleviates-hallmarks-of-house-dust-mite-induced-allergic-airway-disease
#13
Hesam Movassagh, Lianyu Shan, Jonathan S Duke-Cohan, Andrew J Halayko, Jude E Uzonna, Abdelilah S Gounni
Semaphorins are an essential family of guidance cues ubiquitously expressed in various organs, which play diverse developmental, homeostatic, and pathological roles. Semaphorin 3E (Sema3E), initially identified as a neuronal chemorepellent, is involved in the regulation of cell migration, proliferation, and angiogenesis. However, expression and function of Sema3E in allergic asthma has not been extensively investigated. We determined the expression of Sema3E in the airways and its effect on airway inflammation, hyperresponsiveness, and remodeling as pathological features of allergic asthma provoked by house dust mite in vivo...
July 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28633664/a-review-of-sarcoptes-scabiei-past-present-and-future
#14
REVIEW
Larry G Arlian, Marjorie S Morgan
The disease scabies is one of the earliest diseases of humans for which the cause was known. It is caused by the mite, Sarcoptes scabiei, that burrows in the epidermis of the skin of humans and many other mammals. This mite was previously known as Acarus scabiei DeGeer, 1778 before the genus Sarcoptes was established (Latreille 1802) and it became S. scabiei. Research during the last 40 years has tremendously increased insight into the mite's biology, parasite-host interactions, and the mechanisms it uses to evade the host's defenses...
June 20, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28632956/anti-inflammatory-potential-of-a-heat-killed-lactobacillus-strain-isolated-from-kimchi-on-house-dust-mite-induced-atopic-dermatitis-in-nc-nga-mice
#15
C Y Choi, Y H Kim, S Oh, H J Lee, J H Kim, S H Park, H J Kim, S J Lee, T Chun
AIMS: Atopic dermatitis (AD) is an allergic skin disease driven by the Th2-prone immune response. Therefore, a fundamental approach to restoring the Th1/Th2 balance is needed to treat AD. METHODS AND RESULTS: Eighteen different Lactobacillus strains isolated from Kimchi were screened to identify those that stimulated immune cells to secret Th1-type or Th2-type cytokines. Lactobacillus brevis NS1401 induced the greatest IFN-γ and IL-12 secretion and the least IL-4 production among the tested Lactobacillus strains...
June 20, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28632803/what-s-eating-you-cheyletiella-mites
#16
H Harris Reynolds, Dirk M Elston
Cheyletiella are nonburrowing mites commonly found on rabbits, dogs, and cats. The mites have been known to cause disease in humans, ranging from mild dermatitis to more severe illness with systemic symptoms. Because these mites do not complete any part of their life cycle in humans, diagnosis can be challenging. Herein, we review various clinical presentations associated with Cheyletiella mites as well as diagnostic techniques and treatment options for both humans and animals.
May 2017: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/28629883/laboratory-evaluation-of-the-effect-of-beauveria-bassiana-on-the-predatory-mite-phytoseiulus-persimilis-acari-phytoseiidae
#17
Mohammad Shaef Ullah, Un Taek Lim
Tetranychus urticae Koch (Acari: Tetranychidae), a major pest of many agricultural crops, is mainly controlled with chemical acaricides. However, predatory mites and entomopathogens have been proposed as alternative control agents. In this study, the effect of the BotaniGard(®) GHA strain of Beauveria bassiana on the survival, longevity, fecundity, and egg hatch rate of the predatory mite Phytoseiulus persimilis Athias-Henriot (Acari: Phytoseiidae) were studied under laboratory conditions. When B. bassiana was applied directly to P...
June 16, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/28629359/forced-expiration-measurements-in-mouse-models-of-obstructive-and-restrictive-lung-diseases
#18
Fien C Devos, André Maaske, Annette Robichaud, Lore Pollaris, Sven Seys, Carolina Aznar Lopez, Erik Verbeken, Matthias Tenbusch, Rik Lories, Benoit Nemery, Peter Hm Hoet, Jeroen Aj Vanoirbeek
BACKGROUND: Pulmonary function measurements are important when studying respiratory disease models. Both resistance and compliance have been used to assess lung function in mice. Yet, it is not always clear how these parameters relate to forced expiration (FE)-related parameters, most commonly used in humans. We aimed to characterize FE measurements in four well-established mouse models of lung diseases. METHOD: Detailed respiratory mechanics and FE measurements were assessed concurrently in Balb/c mice, using the forced oscillation and negative pressure-driven forced expiration techniques, respectively...
June 19, 2017: Respiratory Research
https://www.readbyqxmd.com/read/28628840/nasal-epithelium-injury-by-chlorination-products-and-other-stressors-predicts-persistent-sensitization-to-aeroallergens-in-young-schoolchildren
#19
Alfred Bernard, Antonia Sardella, Catherine Voisin, Xavier Dumont
BACKGROUND: Allergic sensitization during childhood is a dynamic process with a substantial rate of remission. Factors influencing this process are largely unknown. METHODS: We conducted a two-year prospective study among 121 schoolchildren (mean age, 5.8 years; 64 boys). We measured urea, club cell protein (CC16), β2-microglobulin and albumin in nasal lavage fluid (NALF) and IgE to cat, pollen or house dust mite (HDM) in nasal mucosa fluid. RESULTS: Odds of persistent sensitization to any aeroallergen increased across baseline ascending tertiles of urea-adjusted β2-microglobulin or albumin and descending tertiles of albumin- or β2-microglobulin-adjusted CC16 (P-trend = 0...
June 16, 2017: Environmental Research
https://www.readbyqxmd.com/read/28627593/suppressive-effect-of-an-aqueous-extract-of-diospyros-kaki-calyx-on-dust-mite-extract-2-4-dinitrochlorobenzene-induced-atopic-dermatitis-like-skin-lesions
#20
Ju-Hee Yu, Meiling Jin, Young-Ae Choi, Na-Hee Jeong, Jeong-Sook Park, Tae-Yong Shin, Sang-Hyun Kim
Atopic dermatitis (AD) is a common chronic inflammatory skin disease, affecting 10-20% of individuals worldwide. Therefore, the discovery of drugs for treating AD is an attractive subject and important to human health. Diospyros kaki and Diospyros kaki (D. kaki) folium exert beneficial effects on allergic inflammation. However, the effect of D. kaki calyx on AD remains elusive. The present study evaluated the effects of an aqueous extract of D. kaki calyx (AEDKC) on AD-like skin lesions using mouse and keratinocyte models...
June 12, 2017: International Journal of Molecular Medicine
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