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Farzana Adams, Fred Nolte, James Colton, John De Beer, Lisa Weddig
An experiment to validate the precooking of tuna as a control for histamine formation was carried out at a commercial tuna factory in Fiji. Albacore tuna ( Thunnus alalunga) were brought on board long-line catcher vessels alive, immediately chilled but never frozen, and delivered to an on-shore facility within 3 to 13 days. These fish were then allowed to spoil at 25 to 30°C for 21 to 25 h to induce high levels of histamine (>50 ppm), as a simulation of "worst-case" postharvest conditions, and subsequently frozen...
February 23, 2018: Journal of Food Protection
Y V Niella, L A G Duarte, V R Bandeira, O Crespo, D Beare, F H V Hazin
The predation of cookie-cutter sharks Isistius spp. upon the early life stages of yellowfin tuna Thunnus albacares, skipjack tuna Katsuwonus pelamis and little tunny Euthynnus alletteratus are described. New evidence suggesting a connection between commercial fishing and predation by Isistius sp. is presented, with these sharks biting tunas hooked in surface waters during daylight. The healing patterns of the wounds made by the sharks are described in detail and, although such damage is known to negatively influence market price elsewhere, it is not the case on the south-east Brazilian coast...
February 21, 2018: Journal of Fish Biology
Kristine A Frerichs, Noemi Anna Nagy, Pieter L Lindenbergh, Patty Bosman, Jhon Marin Soto, Marloes Broekmans, Richard W J Groen, Maria Themeli, Louise Nieuwenhuis, Claudia Stege, Inger S Nijhof, Tuna Mutis, Sonja Zweegman, Henk M Lokhorst, Niels W C J van de Donk
Multiple myeloma (MM) is generally an incurable hematological malignancy with heterogeneous overall survival rates ranging from a few months to more than 10 years. Survival is especially poor for patients who developed disease that is refractory to immunomodulatory drugs and proteasome inhibitors. Areas covered: This review will discuss the importance of CD38-targeting antibodies for the treatment of MM patients to improve their outcome. Expert commentary: Intense immuno-oncological laboratory research has resulted in the development of functionally active monoclonal antibodies against cell surface markers present on MM cells...
February 21, 2018: Expert Review of Clinical Immunology
Alexander J Martin-Bates, Charles Martin-Bates, Richard Withnall
CLINICAL INTRODUCTION: A 29-year-old keen parachutist presented to the emergency services in Cyprus complaining of sudden-onset facial flushing, dizziness and a widespread rash. The episode began on a hot day, 1 hour after she had eaten a breakfast of tinned tuna, and while she was ascending in an aircraft to parachute from 10 000 ft. She completed her jump uneventfully. She had no significant medical history (figure 1).emermed;35/3/184/F1F1F1Figure 1Patient's legs on presentation; this rash was generalised...
March 2018: Emergency Medicine Journal: EMJ
D Y Zou, T A Coudron, L S Zhang, X S Gu, W H Xu, X L Liu, H H Wu
An artificial diet formulated for continuous rearing of the predator Arma chinensis was inferior to natural prey when evaluated using life history parameters. A transcriptome analysis identified differentially expressed genes in diet-fed and prey-fed A. chinensis that were suggestive of molecular mechanisms underlying the nutritive impact of the artificial diet. Changes in the diet formulation were made based on the transcriptome analysis and tested using life history parameters. The quantity of pig liver, chicken egg, tuna fish, biotin, nicotinamide, vitamin B6, thiamine, riboflavin, vitamin C, L-glutamine, and sucrose was reduced, and wheat germ oil, calcium pantothenate and folic acid were increased...
February 21, 2018: Bulletin of Entomological Research
Hang Lu, Li Zhang, Hui Zhao, Jingjing Li, Hailin You, Lu Jiang, Jianen Hu
The biological activities of phospholipids (PLs) have attracted people's attention, especially marine phospholipids with omega-3 polyunsaturated fatty acids DHA and EPA. In this study, we investigated the immunity activation of macrophages in vitro by phospholipids from skipjack brain. The phospholipids were extracted with hexane and ethanol ultrasonication instead of the traditional method of methanol and chloroform. The content of phospholipids from Skipjack brain was 19.59 g/kg by the method (the ratio of hexane and ethanol 2:1, 40 min, 35°C, 1:9 of the ratio of material to solvent, ultrasonic power 300W, ultrasonic extraction 2 times)...
February 19, 2018: Journal of Oleo Science
Maria João Cruz, Miguel Machete, Gui Menezes, Emer Rogan, Mónica A Silva
Small-scale artisanal fisheries can have a significant negative impact in cetacean populations. Cetacean bycatch has been documented in the pole-and-line tuna fishery in the Azores with common dolphins being the species more frequently taken. Based on data collected by observers on ∼50% of vessels operating from 1998 to 2012, we investigate the influence of various environmental and fisheries-related factors in common dolphin bycatch and calculate fleet-wide estimates of total bycatch using design-based and model-based methods...
2018: PeerJ
Mesay Mulugeta Wolle, Sean D Conklin
Several extraction and chromatographic methods were evaluated to identify optimum conditions for arsenic speciation analysis in seafood and seaweed. The extraction systems, which include aqueous, aqueous-organic, acidic, basic, and enzymatic solutions, were examined for their efficiency in extracting arsenic from finfish, crustaceans, molluscs, and seaweed keeping the chemical forms of the native arsenicals intact. While dilute solutions of nitric acid, hydrochloric acid, and tetramethylammonium hydroxide (TMAH) extract high fractions of arsenic from most of the matrices, the extractants oxidized arsenite (As3+ ) to arsenate (As5+ ) and converted some arsenosugars and non-polar arsenicals to known and/or unknown forms...
February 17, 2018: Analytical and Bioanalytical Chemistry
Farah Constantin, Patricia-Alexandra Niculescu, Oana Petre, Daniel Balasa, Alexandru Tunas, Ioana Rusu, Mihai Lupascu, Cristiana Orodel
Sinus infections can be complicated by ocular infections and, in late phases, by brain parenchyma infection. The article debates the case of a 12-year-old patient suffering from paucisymptomatic maxillo-spheno-ethmoidal rhinosinusitis, which was later complicated by orbital cellulitis, ending with the development of a brain abscess. The treatment is complex, initially targeting the source of the infection through draining the collection by middle maxillary antrostomy and anterior posterior ethmoidectomy, then the ablation of the brain abscess and postoperatively with prolonged massive antibiotherapy...
April 2017: Romanian Journal of Ophthalmology
Mine Koruyucu, Figen Seymen, Genco Gencay, Koray Gencay, Elif Bahar Tuna, Teo Jeon Shin, Hong-Keun Hyun, Young-Jae Kim, Jung-Wook Kim
BACKGROUND/AIMS: Enamel-renal syndrome is characterized by nephrocalcinosis, enamel defects, gingival hyperplasia and eruption failures. It has been recently identified that recessive mutations in the FAM20A gene result in amelogenesis imperfecta (AI)-gingival fibromatosis. The aim of this research to determine whether AI patients with known -FAM20A mutations also have nephrocalcinosis. METHODS: Complete oral and radiological examinations were performed for all participating family members...
February 13, 2018: Nephron
Guowan Su, Weiwei He, Mouming Zhao, Geoffrey I N Waterhouse, Dongxiao Sun-Waterhouse
This study systematically explored the effect of HEPES, Tris and sodium phosphate (PB) buffers on the xanthine oxidase (XO) inhibitory activity of tuna protein hydrolysate (TPH, containing over 90% of constituents with molecular weight below 5kDa). The greatest XO inhibition by TPH was observed in HEPES buffer. The optimal HEPES concentration was 100mmol/L. Tryptophan fluorescence and circular dichroism measurements revealed the comparable stability of XO and TPH in the three buffers. The buffers did not alter the majority of XO or TPH structure but induced slight modifications to specific domains (e...
March 2018: Food Research International
Fevzi Tuna Ocakoğlu, Sezen Köse, Burcu Özbaran, Hüseyin Onay
INTRODUCTION: Previous studies showed the association of Autism Spectrum Disorder (ASD) and oxytocin receptor (OXTR) gene. We aimed to explore the OXTR gene single nucleotide polymorphisms (SNPs) across the ASD severity categories based on DSM-5. METHOD: The whole encoding regions of the human OXTR gene were sequenced to identify the SNPs in 100 Turkish children with ASD. Genotypes of detected SNPs were also compared with the Childhood Autism Rating Scale (CARS) scores...
January 31, 2018: Asian Journal of Psychiatry
Ricardo Núñez, M Ángeles García, Julián Alonso, M Julia Melgar
Currently, metal bioaccumulation in fish is increasing and is a cause of concern due to toxicity. Total arsenic, cadmium and lead concentrations in fresh and processed tuna (110 samples) marketed in Galicia (NW Spain) were determined by ICP-MS spectrometry. The average concentrations of As and Cd, 3.78 and 0.024 mg kg-1 w.w., respectively, in fresh tuna were statistically significantly higher than those in processed tuna (p < 0.001). The contents in processed tuna were 0.295-7.85 mg kg-1 for As and ND-0...
January 29, 2018: Science of the Total Environment
G Morroy, D Ooms, H J Jansen, J Dijkstra, K J van Drunen-Kamp, J Batstra-Blokpoel
BACKGROUND: When two or more people fall ill after eating the same food, this is called an outbreak of food poisoning or food-related infection. In the Netherlands, physicians have to notify the Municipal Health Services (GGD) of such outbreaks. The GGD informs the Netherlands Food and Consumer Product Safety Authority (NVWA). CASE DESCRIPTION: Two clusters of scombroid poisoning (histamine poisoning in this case after eating tuna) occurred in one month. Due to the quick reporting of patients by physicians, the GGD and the NVWA immediately tracked down the source...
2018: Nederlands Tijdschrift Voor Geneeskunde
Hongyan Zhang, Yanyan Li, Chenxi Cui, Tingting Sun, Jiaojiao Han, Dijun Zhang, Chenyang Lu, Jun Zhou, Lingzhi Cheong, Ye Li, Xiurong Su
Previous studies have shown that dietary supplementation with tuna oil and algae oil can alleviate the effects of ageing on learning and memory in mouse models, but the mechanism of this effect remains unknown. This study aimed to determine whether dietary oil supplementation alters the composition of the gut microbiota during the prevention of age-related effects on cognition. Ageing mice received dietary oil supplementation continuously for 12 weeks. The supplementation was found to improve the animals' learning and cognition, and this effect was most marked in the TO200AO400 group, which received a 1:2 mixture of tuna oil and algae oil at 600 mg kg-1 day-1...
February 7, 2018: Applied Microbiology and Biotechnology
Gregory N Puncher, Alessia Cariani, Gregory E Maes, Jeroen Van Houdt, Koen Herten, Rita Cannas, Naiara Rodriguez-Ezpeleta, Aitor Albaina, M Andone Estonba, Molly Lutcavage, Alex Hanke, Jay Rooker, James S Franks, Joseph M Quattro, Gualtiero Basilone, Igaratza Fraile, Urtzi Laconcha, Nicolas Goñi, Ai Kimoto, A David Macías, Francisco Alemany, Simeon Deguara, Salem W Zgozi, Fulvio Garibaldi, Isik K Oray, F Saadet Karakulak, Noureddine Abid, Miguel N Santos, Piero Addis, Haritz Arrizabalaga, Fausto Tinti
The Atlantic bluefin tuna is a highly migratory species emblematic of the challenges associated with shared fisheries management. In an effort to resolve the species' stock dynamics, a genome-wide search for spatially informative single nucleotide polymorphisms (SNPs) was undertaken, by way of sequencing reduced representation libraries. An allele frequency approach to SNP discovery was used, combining the data of 555 larvae and young-of-the-year (LYOY) into pools representing major geographical areas and mapping against a newly assembled genomic reference...
February 6, 2018: Molecular Ecology Resources
Matthew Gregson, Erli Lu, David P Mills, Floriana Tuna, Eric J L McInnes, Christoph Hennig, Andreas C Scheinost, Jonathan McMaster, William Lewis, Alexander J Blake, Andrew Kerridge, Stephen T Liddle
This corrects the article DOI: 10.1038/ncomms14137.
February 5, 2018: Nature Communications
Margarida Hermida, Bárbara Cavaleiro, Lídia Gouveia, Aurélia Saraiva
Skipjack tuna, Katsuwonus pelamis, is a tropical species of economic importance for fisheries around the world. It occurs seasonally in subtropical waters around Madeira archipelago, in the warmer months. In this study, a parasitological analysis was carried out on a sample of 30 skipjack caught near Madeira Island. A total of 24 parasite taxa were found in this sample. The skipjack parasite community detected was characterized by a wide diversity of parasites, with a predominance of adult didymozoid trematodes, and high prevalences of Tentacularia coryphaenae cestode larvae and Anisakis sp...
February 3, 2018: Parasitology Research
Hacer Dogan Varan, Gurkan Guner, Muhammet Cemal Kizilarslanoglu, Fatih Sumer, Rana Tuna Dogrul, Aykut Sagir, Cemile Ozsurekci, Hatice Caliskan, Cafer Balci, Gozde Sengul Aycicek, Filiz Akbiyik, Meltem Halil, Mustafa Cankurtaran, Burcu Balam Yavuz
BACKGROUND: The novel molecule endocan, which is released by endothelium and is regulated by proangiogenic and proinflammatory cytokines, may have a role in the pathophysiology of Alzheimer disease (AD). The aim of this study was to evaluate the relationship between serum endocan levels and AD. METHODS: A total of 134 patients (47 AD, 42 amnestic mild cognitive impairment [aMCI], and 45 control patients) 65 years of age and older were recruited in this study. Cognitive status of the patients was evaluated by performing the Montreal Cognitive Assessment (MOCA) and the Mini-Mental State Examination (MMSE)...
January 26, 2018: Dementia and Geriatric Cognitive Disorders
Onur Tunalı, Ali Erşen, Tuna Pehlivanoğlu, Serkan Bayram, Ata C Atalar, Mehmet Demirhan
PURPOSE: In distal humerus fractures, the goal is to achieve a functional range of motion of 30°-130° which is not always possible. The aims of the study were to evaluate the functional results after distal humerus fracture operation and to investigate the risk factors for stiffness. METHODS: Between 2005 and 2014, 75 patients with the mean age of 37.8 years (17-80) underwent open reduction and plate fixation for distal humerus fractures. Range of motion (ROM), Mayo elbow performance scores, and quick DASH scores were used for functional evaluation...
February 1, 2018: International Orthopaedics
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