keyword
https://read.qxmd.com/read/38543830/detection-of-acipenser-european-iridovirus-aciv-e-in-sturgeon-farms-in-northern-italy-between-2021-2023
#21
JOURNAL ARTICLE
Fabio Bondavalli, Dáša Schleicherová, Paolo Pastorino, Davide Mugetti, Claudio Pedron, Marino Prearo
Sturgeon farming is rapidly expanding in Europe, where Italy ranks first in farmed caviar production. A major threat to sturgeon health in captivity is infection with Acipenser European Iridovirus (AcIV-E), a viral disease definitively identified in 2016. Here we present data on the occurrence of AcIV-E in 482 sturgeons (age ≤ 12 months, species of the genus Acipenser and the species Huso huso ) collected from sturgeon farms in northern Italy between January 2021 and December 2023. The health status of each specimen was determined by necroscopy and virological assay...
March 18, 2024: Viruses
https://read.qxmd.com/read/38543679/isolation-and-characterization-of-a-novel-virulent-phage-asg01-of-aeromonas-salmonicida-and-its-cell-wall-hydrolase-activity
#22
JOURNAL ARTICLE
Chen Li, Qiting Fang, Yangjun Zhang, Kunyan Li, Yaoguang Li, Rong Wang, Yuyuan Peng, Guofan Zhang, Liqiu Xia, Shengbiao Hu
Aeromonas salmonicida is an important pathogen that causes furunculosis in trout and salmon with high morbidity and mortality, resulting in significant economic losses in aquaculture. Overuse of antibiotics has led to the continuous emergence of drug-resistant strains. Hence, there is an urgent need to find an alternative environmentally friendly antimicrobial agent. In this study, we isolated a virulent phage of A. salmonicida , named ASG01, which belongs to the Myoviridae family and maintains lytic activity at a pH value range from 4 to 12 and in the temperature range from 30 °C to 60 °C...
March 21, 2024: Microorganisms
https://read.qxmd.com/read/38543677/importance-of-probiotics-in-fish-aquaculture-towards-the-identification-and-design-of-novel-probiotics
#23
REVIEW
Edgar Torres-Maravilla, Mick Parra, Kevin Maisey, Rodrigo A Vargas, Alejandro Cabezas-Cruz, Alex Gonzalez, Mario Tello, Luis G Bermúdez-Humarán
Aquaculture is a growing industry worldwide, but it faces challenges related to animal health. These challenges include infections by parasites, bacteria, and viral pathogens. These harmful pathogens have devastating effects on the industry, despite efforts to control them through vaccination and antimicrobial treatments. Unfortunately, these measures have proven insufficient to address the sanitary problems, resulting in greater environmental impact due to the excessive use of antimicrobials. In recent years, probiotics have emerged as a promising solution to enhance the performance of the immune system against parasitic, bacterial, and viral pathogens in various species, including mammals, birds, and fish...
March 21, 2024: Microorganisms
https://read.qxmd.com/read/38543607/shark-microbiome-analysis-demonstrates-unique-microbial-communities-in-two-distinct-mediterranean-sea-shark-species
#24
JOURNAL ARTICLE
Francesco Montemagno, Chiara Romano, Deborah Bastoni, Angelina Cordone, Olga De Castro, Sergio Stefanni, Emilio Sperone, Donato Giovannelli
Our knowledge regarding the role of the microbiome in fish health has been steadily increasing in the last decade, especially for species of commercial interest. Conversely, relatively few studies focus on the microbiomes of wild fish, especially apex predators like sharks, due to lower economic interest and greater difficulty in obtaining samples. Studies investigating microbiome differences between diverse anatomical locations of sharks are limited, and the majority of the available studies are focused on the microbial diversity present on shark teeth, with the aim of preventing infections due to bites of these animals or evaluating the presence of certain pathogens in healthy or diseased specimens...
March 11, 2024: Microorganisms
https://read.qxmd.com/read/38543594/advances-in-the-effects-of-dietary-macronutrients-on-the-gut-microbiota-of-tilapia-oreochromis-spp
#25
REVIEW
Weihao Ou, Zihe Guo, Ying Pan, Kai Huang, Yanqun Ma, Zhibiao Qin
The homeostasis of the intestinal microbiota of fish is beneficial to fish health, while food can affect the intestinal microbiota. Tilapia ( Oreochromis spp.) has great economic value and is a good model to use in studying the digestion and absorption of nutrients. Furthermore, at present, due to a high demand and high price of high-quality feed raw materials, the nutritional composition of aquafeeds has been changing dynamically. There has yet to be a comprehensive review of research conducted on the influences of dietary macronutrients (proteins, lipids, and carbohydrates) on the tilapia intestinal microbiota...
March 8, 2024: Microorganisms
https://read.qxmd.com/read/38543593/isolation-and-characterization-of-a-novel-aeromonas-salmonicida-infecting-studiervirinae-bacteriophage-jelg-ks1
#26
JOURNAL ARTICLE
Karina Svanberga, Jelena Avsejenko, Juris Jansons, Davids Fridmanis, Tatjana Kazaka, Aivars Berzins, Andris Dislers, Andris Kazaks, Nikita Zrelovs
Representatives of the bacterial genus Aeromonas are some of the most notorious aquaculture pathogens associated with a range of diseases in different fish species. As the world forges toward the post-antibiotic era, alternative options for combating bacterial pathogens are needed. One such alternative option is phage biocontrol. In this study, a novel podophage-JELG-KS1-infecting Aeromonas salmonicida was retrieved from wastewater along with its host strain. The genome of the JELG-KS1 phage is a 40,505 bp dsDNA molecule with a GC% of 53...
March 8, 2024: Microorganisms
https://read.qxmd.com/read/38543554/coinfection-of-cage-cultured-spotted-sea-bass-lateolabrax-maculatus-with-vibrio-harveyi-and-photobacterium-damselae-subsp-piscicida-associated-with-skin-ulcer
#27
JOURNAL ARTICLE
Dandan Zhou, Binzhe Zhang, Yuchen Dong, Xuepeng Li, Jian Zhang
Spotted sea bass ( Lateolabrax maculatus ) is a high-economic-value aquacultural fish widely distributed in the coastal and estuarine areas of East Asia. In August 2020, a sudden outbreak of disease accompanied by significant mortality was documented in L. maculatus reared in marine cage cultures located in Nanhuang island, Yantai, China. Two coinfected bacterial strains, namely, NH-LM1 and NH-LM2, were isolated from the diseased L. maculatus for the first time. Through phylogenetic tree analysis, biochemical characterization, and genomic investigation, the isolated bacterial strains were identified as Vibrio harveyi and Photobacterium damselae subsp...
February 29, 2024: Microorganisms
https://read.qxmd.com/read/38543507/histopathology-and-phylogeny-of-the-dinoflagellate-hematodinium-perezi-and-the-epibiotic-peritrich-ciliate-epistylis-sp-infecting-the-blue-crab-callinectes-sapidus-in-the-eastern-mediterranean
#28
JOURNAL ARTICLE
Athanasios Lattos, Dimitrios K Papadopoulos, Ioannis A Giantsis, Alexios Stamelos, Dimitrios Karagiannis
Bioinvasions constitute both a direct and an indirect threat to ecosystems. Direct threats include pressures on local trophic chains, while indirect threats might take the form of an invasion of a microorganism alongside its host. The marine dinoflagellate Hematodinium perezi , parasitizing blue crabs ( Callinectes sapidus ), has a worldwide distribution alongside its host. In Greece, fluctuations in the blue crab population are attributed to overexploitation and the effects of climate change. The hypothesis of the present study was that blue crab population reductions cannot only be due to these factors, and that particular pathogens may also be responsible for the fluctuations...
February 23, 2024: Microorganisms
https://read.qxmd.com/read/38543434/colorimetric-indicator-based-on-gold-nanoparticles-and-sodium-alginate-for-monitoring-fish-spoilage
#29
JOURNAL ARTICLE
Lissage Pierre, Julio Elías Bruna Bugueño, Patricio Alejandro Leyton Bongiorno, Alejandra Torres Mediano, Francisco Javier Rodríguez-Mercado
In this work, a colorimetric indicator based on gold nanoparticles (AuNP) and a biodegradable and eco-friendly polymer (sodium alginate, Alg.), was developed for the real-time detection of fish spoilage products. The AuNPs and the colorimetric indicator were characterized using UV-VIS, FTIR spectroscopies, TGA, DSC, XRD, TEM, and colorimetry. The UV-VIS spectrum and TEM showed the successful synthesis, the spherical shape, and the size of AuNPs. The results indicated color changes of the indicator in packaged fish on day 9 of storage at a refrigerated temperature (5 °C...
March 17, 2024: Polymers
https://read.qxmd.com/read/38543416/effect-of-modified-natural-rubber-on-the-mechanical-and-thermal-properties-of-poly-lactic-acid-and-its-composites-with-nanoparticles-from-biowaste
#30
JOURNAL ARTICLE
Preeyaporn Injorhor, Supharat Inphonlek, Yupaporn Ruksakulpiwat, Chaiwat Ruksakulpiwat
The brittle behavior of poly(lactic acid) (PLA) and PLA composites with inorganic filler limits their applications; the addition of a toughening agent, such as a rubbery phase, was selected to transform the brittle to ductile behavior for versatility in various applications. This work aims to study the properties of PLA and PLA composite with filled nanosized hydroxyapatite (nHA) after adding modified natural rubber (MoNR), which acts as a toughening agent. MoNR refers to poly(acrylic acid-co-acrylamide)-grafted deproteinized natural rubber...
March 14, 2024: Polymers
https://read.qxmd.com/read/38543272/first-insights-about-antiparasitic-and-action-mechanisms-of-the-antimicrobial-peptide-hepcidin-from-salmonids-against-caligus-rogercresseyi
#31
JOURNAL ARTICLE
Paula A Santana, Camila Arancibia, Laura Tamayo, Juan Pablo Cumillaf, Tanya Roman, Constanza Cárdenas, Cinthya Paillan Suarez, Claudio A Álvarez, Fanny Guzman
Currently, one of the primary challenges in salmon farming is caligidosis, caused by the copepod ectoparasites Caligus spp. The infection process is determined by the copepod's ability to adhere to the fish skin through the insertion of its chitin-composed filament. In this study, we examined several antimicrobial peptides previously identified in salmonid mucosal secretions, with a primary focus on their potential to bind to chitin as an initial step. The binding capacity to chitin was tested, with hepcidin and piscidin showing positive results...
March 8, 2024: Pharmaceutics
https://read.qxmd.com/read/38543167/comparison-of-glutathione-nanoparticles-coenzyme-q10-and-fish-oil-for-prevention-of-oxygen-induced-retinopathy-in-neonatal-rats
#32
JOURNAL ARTICLE
Sidra Bashir, Charles L Cai, Matthew Marcelino, Jacob V Aranda, Kay D Beharry
Notch ligands and receptors are important for cell specification and angiogenesis, but their role in oxygen-induced retinopathy (OIR) is not well studied. Delta-like ligand (DLL)-4/Notch inhibits angiogenesis, while Jagged-1/Notch promotes angiogenesis. We tested the hypothesis that early supplementation with antioxidants and/or fish oil curtails severe OIR by inducing DLL-4/Notch and reducing Jagged-1/Notch. Newborn rats were exposed to brief intermittent hypoxia (IH) during hyperoxia, during which they received daily oral supplements of (1) fish oil, (2) coenzyme Q10 (CoQ10) in olive oil (OO), (3) glutathione nanoparticles (nGSH), (4) fish oil + CoQ10, or (5) OO (controls) from birth (P0) to P14...
March 17, 2024: Pharmaceuticals
https://read.qxmd.com/read/38542975/quantification-of-trimethylamine-n-oxide-and-trimethylamine-in-fish-oils-for-human-consumption
#33
JOURNAL ARTICLE
Dominik Dörfel, Sascha Rohn, Eckard Jantzen
Supplementing fish oil is one of the strategies to reduce the risk of cardiovascular disease, the leading cause of death around the world. Contradictorily, fish oil may also contain trimethylamine- N -oxide, a recently emerged risk factor for cardiovascular disease, as well as one of its precursors, trimethylamine. A method suitable for routine quantification of trimethylamine- N -oxide and trimethylamine in fish oil with a quick and easy liquid extraction without derivatization has been developed. Liquid chromatography with tandem mass spectrometry detection was employed along with a zwitterionic hydrophilic interaction liquid chromatography column and a gradient elution with eluents containing 50 mmol/L of ammonium formate...
March 17, 2024: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/38542940/liquid-chromatography-with-tandem-mass-spectrometry-analysis-of-carboxymethyl-lysine-in-indonesian-foods
#34
JOURNAL ARTICLE
Patricia Budihartanti Liman, Mulyana, Yenny, Ratna Djuwita
There is little data on directly measured carboxymethyl lysine (CML) content in Indonesian foods. This study aimed to generate a database of CML values in foods commonly consumed in West Java and West Sumatra. The results were to be used to update our previous estimated CML values. CML values in food samples were measured using high-pressure liquid chromatography with tandem mass spectrometry (HPLC-MS/MS). Food protein content was analyzed by Kjeldahl's method or inferred from the nutrition facts' label. A total of 210 food samples were examined, with the food groups of meat and poultry (1...
March 15, 2024: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://read.qxmd.com/read/38542819/the-mediating-role-of-psychological-balance-on-the-effects-of-dietary-behavior-on-cognitive-impairment-in-chinese-elderly
#35
JOURNAL ARTICLE
Yating Chen, Lingling Zhang, Xiaotong Wen, Xiaojun Liu
BACKGROUND: Cognitive impairment, a significant problem in older adults, may be associated with diet. This study aims to examine the association between the dietary diversity score (DDS), dietary pattern (DP), and cognitive impairment in elderly Chinese. This research further explored the role of psychological balance (PB) as a mediator in the relationship between diet and cognitive impairment. METHODS: A total of 14,318 older adults from the Chinese Longitudinal Healthy Longevity Study (CLHLS) in 2018 were included...
March 21, 2024: Nutrients
https://read.qxmd.com/read/38542803/nutri-score-of-meat-fish-and-dairy-alternatives-a-comparison-between-the-old-and-new-algorithm
#36
JOURNAL ARTICLE
Sylvie Huybers, Annet J C Roodenburg
Nutri-Score is a front-of-pack label that visualizes the nutritional quality of food products from most healthy (A, dark green) to least healthy (E, red). However, concerns have been raised about discrepancies between Nutri-Score labels and dietary recommendations. Therefore, the Nutri-Score algorithm has recently been adapted. To investigate the effect of the new algorithm, the Nutri-Score of plant-based meat, fish, and dairy alternatives ( n = 916) was calculated with the old and new algorithms. In addition, the nutritional values of meat and milk alternatives with Nutri-Score labels A and B were compared under the old and new conditions and subsequently assessed for alignment with the criteria of Dutch dietary guidelines...
March 19, 2024: Nutrients
https://read.qxmd.com/read/38542786/dietary-intakes-of-long-chain-polyunsaturated-fatty-acids-and-impulsivity-comparing-non-restricted-vegetarian-and-vegan-diets
#37
JOURNAL ARTICLE
Mitchell K Byrne, Rebecca Cook, Janina C D Murta, Daniel Bressington, Barbara J Meyer
BACKGROUND: Research suggests a link between deficiencies in omega-3 long-chain polyunsaturated fatty acids (LCPUFAs) and impulsivity among psychiatric populations. However, this association is less evident in non-clinical populations. As omega-3 LCPUFAs are predominantly sourced through fish consumption, non-fish dieters may be more vulnerable to higher impulsivity. METHODS: This cross-sectional observational study explored the association between lower intakes of omega-3 LCPUFA food sources and higher self-reported measures of impulsivity among healthy adults consuming non-restricted, vegetarian, and vegan diets...
March 18, 2024: Nutrients
https://read.qxmd.com/read/38542763/determinants-of-fish-intake-and-complying-with-fish-consumption-recommendations-a-nationwide-cross-sectional-study-among-secondary-school-students-in-poland
#38
JOURNAL ARTICLE
Zofia Utri-Khodadady, Dominika Skolmowska, Dominika Głąbska
Fish intake in youth is commonly inadequate with several potential determinants. This cross-sectional study aimed to assess the influence of potential fish intake determinants in a nationwide sample of Polish youth. Associations between the participants' fish intake and their gender, age, body mass index, place of residence (region and size of locality), school type, nutritional knowledge about fish, and their parents'/legal guardians' fish intake were assessed. A total sample of 1317 adolescents (870 female, 447 male) aged 14-22 from 32 secondary schools from all regions of Poland participated in the study...
March 15, 2024: Nutrients
https://read.qxmd.com/read/38542687/healthy-and-unhealthy-dietary-patterns-of-depressive-symptoms-in-middle-aged-women
#39
JOURNAL ARTICLE
Ji-Young Choi, Seon-Joo Park, Hae-Jeung Lee
Depressive symptoms are a common menopausal feature in middle-aged women and are associated with dietary factors. This study aimed to determine the association between dietary patterns and depressive symptoms in 2190 Korean women aged 45-69 years. Depressive symptoms were screened using the Beck Depression Inventory-II (BDI-II), and food intake was examined using a food frequency questionnaire. Dietary patterns were derived from principal components analysis and identified two dietary patterns: a "healthy" dietary pattern (high intake of whole-grain rice, legumes, vegetables, fruits, and fish) and an "unhealthy" dietary pattern (high intake of noodles, dumplings, sweets, red meat, soda, and coffee)...
March 8, 2024: Nutrients
https://read.qxmd.com/read/38542611/a-bio-inspired-drag-reduction-method-of-bionic-fish-skin-mucus-structure
#40
JOURNAL ARTICLE
Pengfei Zhao, Xin Li, Zhengjie Luo, Qihang Zhai, Ye Tian, Kaisheng Zhang, Hao Guo
Efforts to enhance the speed and reduce the energy consumption of underwater vehicles have led to the proposal of a novel mucus release structure inspired by the secretion of mucus cells on fish skin. This structure features interconnected microgrooves with excellent flexibility for adjusting to different states, effectively reducing drag through mucus release. Numerical analysis of the drag reduction performance of the mucous-releasing micro-pore structure was conducted using ANSYS Fluent 19.2 software. This structure is capable of reducing the velocity gradient near the wall and, owing to the presence of micro-pore structures, decreasing the overall compressed area, thereby achieving drag reduction effects...
March 6, 2024: Micromachines
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