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https://www.readbyqxmd.com/read/28734861/low-food-allergy-prevalence-despite-delayed-introduction-of-allergenic-foods-data-from-the-gusto-cohort
#1
Elizabeth Huiwen Tham, Bee Wah Lee, Yiong Huak Chan, Evelyn Xiu Ling Loo, Jia Ying Toh, Anne Goh, Oon Hoe Teoh, Fabian Yap, Kok Hian Tan, Keith M Godfrey, Mary Foong Fong Chong, Hugo P S Van Bever, Yap Seng Chong, Lynette Pei-Chi Shek
BACKGROUND: There is mounting evidence that early introduction of allergenic food decreases the risk of food allergy development, especially in high-risk infants with eczema. However, there is a lack of data to suggest whether this association holds true in Asian populations. OBJECTIVE: To investigate the relationship between the timing of introduction of allergenic foods and food allergy outcomes in infants in the Growing Up in Singapore Towards healthy Outcomes (GUSTO) study...
July 19, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28734856/four-cases-of-delayed-onset-systemic-reaction-to-shellfish
#2
Michelle Fox Huffaker, Sean Austin McGhee
No abstract text is available yet for this article.
July 19, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28730312/hydrophilic-interaction-liquid-chromatography-tandem-mass-spectrometry-for-quantitation-of-paralytic-shellfish-toxins-validation-and-application-to-reference-materials
#3
Krista M Thomas, Daniel G Beach, Kelley L Reeves, Ryan S Gibbs, Elliott S Kerrin, Pearse McCarron, Michael A Quilliam
Paralytic shellfish toxins (PSTs) are potent neurotoxins produced by marine dinoflagellates that are responsible for paralytic shellfish poisoning (PSP) in humans. This work highlights our ongoing efforts to develop quantitative methods for PSTs using hydrophilic interaction liquid chromatography-tandem mass spectrometry (HILIC-MS/MS). Compared with the commonly used method of liquid chromatography with post-column oxidation and fluorescence detection (LC-ox-FLD), HILIC-MS/MS has the potential of being more robust, sensitive and straightforward to operate, and provides unequivocal confirmation of toxin identity...
July 20, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28726749/ladder-shaped-ion-channel-ligands-current-state-of-knowledge
#4
REVIEW
Yuri B Shmukler, Denis A Nikishin
Ciguatoxins (CTX) and brevetoxins (BTX) are polycyclic ethereal compounds biosynthesized by the worldwide distributed planktonic and epibenthic dinoflagellates of Gambierdiscus and Karenia genera, correspondingly. Ciguatera, evoked by CTXs, is a type of ichthyosarcotoxism, which involves a variety of gastrointestinal and neurological symptoms, while BTXs cause so-called neurotoxic shellfish poisoning. Both types of toxins are reviewed together because of similar mechanisms of their action. These are the only molecules known to activate voltage-sensitive Na⁺-channels in mammals through a specific interaction with site 5 of its α-subunit and may compete for it, which results in an increase in neuronal excitability, neurotransmitter release and impairment of synaptic vesicle recycling...
July 20, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28724971/computational-design-of-a-symmetrical-%C3%AE-trefoil-lectin-with-cancer-cell-binding-activity
#5
Daiki Terada, Arnout R D Voet, Hiroki Noguchi, Kenichi Kamata, Mio Ohki, Christine Addy, Yuki Fujii, Daiki Yamamoto, Yasuhiro Ozeki, Jeremy R H Tame, Kam Y J Zhang
Computational protein design has advanced very rapidly over the last decade, but there remain few examples of artificial proteins with direct medical applications. This study describes a new artificial β-trefoil lectin that recognises Burkitt's lymphoma cells, and which was designed with the intention of finding a basis for novel cancer treatments or diagnostics. The new protein, called "Mitsuba", is based on the structure of the natural shellfish lectin MytiLec-1, a member of a small lectin family that uses unique sequence motifs to bind α-D-galactose...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28718096/contamination-status-of-arsenic-in-fish-and-shellfish-from-three-river-basins-in-ghana
#6
Francis Gbogbo, Samuel Darlynton Otoo, Obed Asomaning, Robert Quaye Huago
Fish and shellfish are regularly consumed and sold in Ghana, yet studies on arsenic pollution in Ghana are limited largely to ground water. This study evaluated arsenic concentrations in seven species of shellfish and 10 species of fish inhabiting the mouth of Ankobra, Densu and Volta basins in Ghana and assessed the public health implications. Arsenic levels varied from 0.2 to 2.2 mg L(-1) in the three rivers and were higher than WHO recommended values of 10 μg L(-1) for drinking water. Except for Periophthalmus sp...
August 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28713794/correction-occurrence-of-harmful-algal-species-and-shellfish-toxicity-in-sardinia-italy
#7
Anna Maria Bazzoni, Alessandro Graziano Mudadu, Giuseppa Lorenzoni, Igor Arras, Antonella Lugliè, Barbara Vivaldi, Valentina Ciccotelli, Giovanna Sanna, Giuseppe Tedde, Salvatore Ledda, Enrico Alesso, Edoardo Marongiu, Sebastiano Virgilio
[This corrects the article on p. 6095 in vol. 5, PMID: 28058244.].
April 13, 2017: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/28711392/corrigendum-to-dietary-lactobacillus-acidophilus-modulated-skin-mucus-protein-profile-immune-and-appetite-gene-expression-in-gold-fish-carassius-auratus-gibelio-fish-shellfish-immunol-59c-2016-149-154
#8
Marjan Hosseini, Hamed Kolangi Miandare, Ali Shabani, Seyed Hossein Hoseinifar, Peyman Yarahmadi
No abstract text is available yet for this article.
July 12, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28711010/the-paralytic-shellfish-toxin-saxitoxin-enters-the-cytoplasm-and-induces-apoptosis-of-oyster-immune-cells-through-a-caspase-dependent-pathway
#9
Celina Abi-Khalil, Darren S Finkelstein, Genevieve Conejero, Justin Du Bois, Delphine Destoumieux-Garzon, Jean Luc Rolland
Exposure of the toxin-producing dinoflagellate Alexandrium catenella (A. catenella) was previously demonstrated to cause apoptosis of hemocytes in the oyster species Crassostrea gigas. In this work, a coumarin-labeled saxitoxin appeared to spread throughout the cytoplasm of the hemocytes. PSTs, including saxitoxin, were also shown to be directly responsible for inducing apoptosis in hemocytes, a process dependent on caspase activation and independent of reactive oxygen species (ROS) production. A series of in vitro labelling and microscopy experiments revealed that STX and analogs there of induced nuclear condensation, phosphatidylserine exposure, membrane permeability, and DNA fragmentation of hemocytes...
July 8, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28710018/first-detection-and-genetic-characterization-of-toxoplasma-gondii-in-market-sold-oysters-in-china
#10
Wei Cong, Nian-Zhang Zhang, Jun-Ling Hou, Xin-Chen Wang, Jian-Gang Ma, Xing-Quan Zhu, Guan-Jun Chen
Toxoplasma gondii oocysts in the water might be filtered through the gills of shellfish in the process of feeding, and can be concentrated in the digestive glands. Consumers might become infected through ingestion of the shellfish unless they are discharged or inactivated by the shellfish. Thus, the purpose of this study was to evaluate the presence of T. gondii in market-sold oysters in China under natural conditions using a molecular approach. A total of 998 oysters were collected from markets in four cities (Weihai, Qingdao, Yantai and Rizhao) of Shandong province, eastern China...
July 12, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/28707705/a-minchinia-mercenariae-like-parasite-infects-cockles-cerastoderma-edule-in-galicia-nw-spain
#11
A Ramilo, E Abollo, A Villalba, M J Carballal
The cockle Cerastoderma edule fishery has traditionally been the most important shellfish species in terms of biomass in Galicia (NW Spain). In the course of a survey of the histopathological conditions affecting this species in the Ria of Arousa, a haplosporidan parasite that had not been observed in Galicia was detected in one of the most productive cockle beds of Galicia. Uni- and binucleate cells and multinucleate plasmodia were observed in the connective tissue mainly in the digestive area, gills and gonad...
July 14, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28706247/the-unprecedented-2015-16-tasman-sea-marine-heatwave
#12
Eric C J Oliver, Jessica A Benthuysen, Nathaniel L Bindoff, Alistair J Hobday, Neil J Holbrook, Craig N Mundy, Sarah E Perkins-Kirkpatrick
The Tasman Sea off southeast Australia exhibited its longest and most intense marine heatwave ever recorded in 2015/16. Here we report on several inter-related aspects of this event: observed characteristics, physical drivers, ecological impacts and the role of climate change. This marine heatwave lasted for 251 days reaching a maximum intensity of 2.9 °C above climatology. The anomalous warming is dominated by anomalous convergence of heat linked to the southward flowing East Australian Current. Ecosystem impacts range from new disease outbreaks in farmed shellfish, mortality of wild molluscs and out-of-range species observations...
July 14, 2017: Nature Communications
https://www.readbyqxmd.com/read/28704673/contributions-of-combined-sewer-overflows-and-treated-effluents-to-the-bacterial-load-released-into-a-coastal-area
#13
M Al Aukidy, P Verlicchi
The impact of combined sewer overflow (CSO) on the receiving water body is an issue of increasing concern, as it may lead to restrictions in the use and destination of the receiving body, such as bathing or recreational area closures, fish and shellfish consumption restrictions, and contamination of drinking water resources. Recent investigations have mainly referred to the occurrence and loads of suspended solids, organic compounds and, in some cases, micropollutants. Attempts have been made to find correlations between the discharged load and the size and characteristics of the catchment area, climate conditions, rainfall duration and intensity...
July 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28697390/exposure-and-risk-characterization-for-dietary-methylmercury-from-seafood-consumption-in-kuwait
#14
Brian Laird, Hing Man Chan, Kurunthachalam Kannan, Adnan Husain, Hanan Al-Amiri, Basma Dashti, Anwar Sultan, Amani Al-Othman, Faten Al-Mutawa
Seafood is an important source of essential nutrients; however, it can also confer health risks from methylmercury (MeHg). In this paper, we evaluate the levels of potential methylmercury exposure among Kuwaiti seafood consumers in order to support the development of dietary recommendations for fish consumption in Kuwait. Total mercury (HgT) concentration for most of the studied fish and shellfish species were on average below the 0.5μgg(-1) Codex guideline. The notable exception to this was Hamoor (Epinephelus coioides), which averaged 1...
July 8, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28692255/cloning-expression-and-the-effects-of-processing-on-sarcoplasmic-calcium-binding-protein-an-important-allergen-in-mud-crab
#15
Mengjun Hu, Guangyu Liu, Yang Yang, Tzu-Ming Pan, Yixiang Liu, Lechang Sun, Min-Jie Cao, Guang-Ming Liu
Shellfish allergy is a prevalent, long-lasting disorder usually persisting throughout life. However, the allergen information is incomprehensive in crab. This study aimed to identify a novel allergen in crab, show its potential in diagnosis and reduce the allergenicity by food processing. A 21-kDa protein was purified from Scylla paramamosain and confirmed as sarcoplasmic calcium binding protein (SCP) by MALDI-TOF/TOF-MS. Total RNA was isolated from crab muscle and a rapid amplification of cDNA was performed to obtain an ORF of 579 bp that coded for 193 amino acid residues...
July 10, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28687882/determination-of-benzothiazoles-in-seafood-species-by-subcritical-water-extraction-followed-by-solid-phase-microextraction-gas-chromatography-tandem-mass-spectrometry-estimating-the-dietary-intake
#16
Laura Trabalón, Martí Nadal, Francesc Borrull, Eva Pocurull
Benzothiazoles are high production volume chemicals widely used in many industrial and household applications. However, information on their occurrence in aquatic organisms is very limited, although a high level of bioaccumulation is expected. In this study and for the first time, a method was developed involving subcritical water extraction followed by solid-phase microextraction coupled to gas chromatography-ion trap-tandem mass spectrometry for the determination of five benzothiazoles in seafood. The repeatability and reproducibility of the method were under 21% (%RSD, n = 5, 100 ng g(-1) (dw)), while method detection limits and method quantification limits were between 0...
July 7, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28687650/parallel-evolution-of-two-clades-of-a-major-atlantic-endemic-vibrio-parahaemolyticus-pathogen-lineage-by-independent-acquisition-of-related-pathogenicity-islands
#17
Feng Xu, Narjol Gonzalez-Escalona, Kevin P Drees, Robert P Sebra, Vaughn S Cooper, Stephen H Jones, Cheryl A Whistler
Shellfish-transmitted Vibrio parahaemolyticus infections have recently increased from locations with historically low disease incidence, such as the Northeast United States (US). This change coincided with a bacterial population shift towards human pathogenic variants occurring in part through the introduction of several Pacific native lineages (ST36, ST43 and ST636) to near-shore areas off the Atlantic coast of the Northeast US. Concomitantly, ST631 emerged as a major endemic pathogen. Phylogenetic trees of clinical and environmental isolates indicated that two clades diverged from a common ST631 ancestor, and in each of these clades, a human pathogenic variant evolved independently through acquisition of distinct Vibrio pathogenicity islands (VPaI)...
July 7, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28683931/filling-the-gap-using-fishers-knowledge-to-map-the-extent-and-intensity-of-fishing-activity
#18
Claire L Szostek, Lee G Murray, Ewen Bell, Michel J Kaiser
Knowledge of the extent and intensity of fishing activities is critical to inform management in relation to fishing impacts on marine conservation features. Such information can also provide insight into the potential socio-economic impacts of closures (or other restrictions) of fishing grounds that could occur through the future designation of Marine Conservation Zones (MCZs). We assessed the accuracy and validity of fishing effort data (spatial extent and relative effort) obtained from Fishers' Local Knowledge (LK) data compared to that derived from Vessel Monitoring System (VMS) data for a high-value shellfish fishery, the king scallop (Pecten maximus L...
June 20, 2017: Marine Environmental Research
https://www.readbyqxmd.com/read/28683525/rapid-identification-of-vibrio-species-isolated-from-the-southern-coastal-regions-of-korea-by-maldi-tof-mass-spectrometry-and-comparison-of-maldi-sample-preparation-methods
#19
Youngjae Cho, Eiseul Kim, Sun-Kyung Han, Seung-Min Yang, Mi-Ju Kim, Hyun-Joong Kim, Chang-Gyeom Kim, Dong-Won Choo, Young-Rok Kim, Hae-Yeong Kim
Vibrio species are generally recognized as pathogens predominant in seafood along coastal areas. The food industry has sought to develop efficient microbial detection methods. Due to the limits of conventional methods, this study aimed to establish a rapid identification method for Vibrio isolated from Korea, based on matrix-assisted laser-desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS). Four different preparation procedures were compared to determine the appropriate means to pre-treat Vibrio species, using 17 isolates and five reference strains...
July 7, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28678977/distribution-and-density-of-the-bivalve-anomalocardia-brasiliana-in-the-estuarine-region-of-northeastern-brazil
#20
A M L Rodrigues Maia, E Medeiros, G G Henry-Silva
The objective of this study was to analyze the density and distribution of the bivalve Anomalocardia brasiliana in beaches in the estuarine region of the semiarid in Rio Grande do Norte State, Barra and Pernambuquinho (04°56.978'S and 37°08.961'W and 04°56.792'S and 37°09.375'W, respectively). Samples were collected monthly during 37 months using five transects (300 m long and 400 m apart) laid perpendicularly to the beach line toward the sea. Seven collection points, 50 m apart, were set in each transect, and shellfish and sediment samples were collected...
June 26, 2017: Brazilian Journal of Biology, Revista Brasleira de Biologia
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