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Deng H, Wu G, Zhou L, Chen X, Guo L, Luo S, Yin Q. Microbial contribution to 14 biogenic amines accumulation in refrigerated raw and deep-fried hairtails (Trichiurus lepturus). Food Chem 2024; 443:138509. [PMID: 38277940 DOI: 10.1016/j.foodchem.2024.138509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 01/10/2024] [Accepted: 01/17/2024] [Indexed: 01/28/2024]
Abstract
Biogenic amines (BAs) produced by microbial decarboxylation of amino acids are crucial toxic nitrogenous compounds in fish. An optimized ultra-high performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method with simple pretreatment was established to detect 14 BAs in both raw (control check, CK) and deep-fried (DF) hairtails. This method exhibited a good linear relationship with average recoveries of 73.3-120.0 % and relative standard deviations of 2.5-10.0 %, respectively. The total BAs in CK and DF hairtails decreased sharply to 338.2 and 25.3 mg/kg on the 9th day, respectively. Four BAs, including cadaverine (CAD), histamine (HIS), tyramine (TYR), and putrescine (PUT) accounted for 92.5-99.9 % of total BAs were selected as the dominant BAs. Bacterial analysis showed that the abundance of DF was relatively low. Further correlation analysis proved that Vibrio had a significant (p < 0.05) positive correlation with total BAs and could be the main BA-producing bacterium in DF hairtail. This work provides new evidence of the accumulation of BAs in refrigerated hairtail.
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Affiliation(s)
- Hao Deng
- Key Laboratory of Tropical Fruit and Vegetable Cold-Chain of Hainan Province, Institute of Agro-Products of Processing and Design, Hainan Academy of Agricultural Sciences, Haikou 571100, China; Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan Institute for Food Control, Haikou 570311, China; Yunnan Provincial Key Laboratory of Biological Big Data, College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Guang Wu
- Key Laboratory of Tropical Fruit and Vegetable Cold-Chain of Hainan Province, Institute of Agro-Products of Processing and Design, Hainan Academy of Agricultural Sciences, Haikou 571100, China
| | - Lingyu Zhou
- Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan Institute for Food Control, Haikou 570311, China
| | - Xiaomei Chen
- Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan Institute for Food Control, Haikou 570311, China
| | - Li Guo
- Key Laboratory of Tropical Fruit and Vegetable Cold-Chain of Hainan Province, Institute of Agro-Products of Processing and Design, Hainan Academy of Agricultural Sciences, Haikou 571100, China
| | - Senlin Luo
- Key Laboratory of Tropical Fruit and Vegetable Cold-Chain of Hainan Province, Institute of Agro-Products of Processing and Design, Hainan Academy of Agricultural Sciences, Haikou 571100, China; Yunnan Provincial Key Laboratory of Biological Big Data, College of Food Science and Technology, Yunnan Agricultural University, Kunming 650201, China
| | - Qingchun Yin
- Key Laboratory of Tropical Fruit and Vegetable Cold-Chain of Hainan Province, Institute of Agro-Products of Processing and Design, Hainan Academy of Agricultural Sciences, Haikou 571100, China; Key Laboratory of Tropical Fruits and Vegetables Quality and Safety for State Market Regulation, Hainan Institute for Food Control, Haikou 570311, China.
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Li Z, Zhuang J, Chen J, Cao J, Han Q, Luo Z, Wang B, Wang H, Li A. Establishment of a gill cell line from yellowfin seabream (Acanthopagrus latus) for studying Amyloodinium ocellatum infection of fish. Journal of Fish Diseases 2024; 47:e13923. [PMID: 38217345 DOI: 10.1111/jfd.13923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 12/23/2023] [Accepted: 12/29/2023] [Indexed: 01/15/2024]
Abstract
Amyloodinium ocellatum is among the most devastating protozoan parasites, causing huge economic losses in the mariculture industry. However, the pathogenesis of amyloodiniosis remains unknown, hindering the development of targeted anti-parasitic drugs. The A. ocellatum in vitro model is an indispensable tool for investigating the pathogenic mechanism of amyloodiniosis at the cellular and molecular levels. The present work developed a new cell line, ALG, from the gill of yellowfin seabream (Acanthopagrus latus). The cell line was routinely cultured at 28°C in Dulbecco's modified Eagle medium (DMEM) supplemented with 15% fetal bovine serum (FBS). ALG cells were adherent and exhibited an epithelioid morphology; the cells were stably passed over 30 generations and successfully cryopreserved. The cell line derived from A. latus was identified based on partial sequence amplification and sequencing of cytochrome B (Cyt b). The ALG was seeded onto transwell inserts and found to be a platform for in vitro infection of A. ocellatum, with a 37.23 ± 5.75% infection rate. Furthermore, scanning electron microscopy (SEM) revealed that A. ocellatum parasitizes cell monolayers via rhizoids. A. ocellatum infection increased the expression of apoptosis and inflammation-related genes, including caspase 3 (Casp 3), interleukin 1 (IL-1), interleukin 10 (IL-10), tumour necrosis factor-alpha (TNF-α), in vivo or in vitro. These results demonstrated that the in vitro gill cell monolayer successfully recapitulated in vivo A. latus host responses to A. ocellatum infection. The ALG cell line holds great promise as a valuable tool for investigating parasite-host interactions in vitro.
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Affiliation(s)
- Zhicheng Li
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Jingyu Zhuang
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Jiaming Chen
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Jizhen Cao
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Qing Han
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Zhi Luo
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Baotun Wang
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Hebing Wang
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Anxing Li
- State Key Laboratory of Biocontrol/Guangdong Provincial Key Laboratory of Improved Variety Reproduction in Aquatic Economic Animals and Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou, Guangdong, China
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Mokhtar DM, Alesci A, Pergolizzi S, Zaccone G. Light and electron microscopic observations on retinal neurons of red-tail shark (Epalzeorhynchos bicolor H. M. Smith, 1931). Microsc Res Tech 2024; 87:1009-1019. [PMID: 38192121 DOI: 10.1002/jemt.24488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 10/26/2023] [Accepted: 12/18/2023] [Indexed: 01/10/2024]
Abstract
The structure of photoreceptors (PR) and the arrangement of neurons in the retina of red-tail shark were investigated using light and electron microscopy. The PR showed a mosaic arrangement and included double cones, single cones (SC), and single rods. Most cones occur as SC. The ratio between the number of cones and rods was 3:1.39 (±0.29). The rods were tall that reached the pigmented epithelium. The outer plexiform layer (OPL) showed a complex synaptic connection between the horizontal and photoreceptor terminals that were surrounded by Müller cell processes. Electron microscopy showed that the OPL possessed both cone pedicles and rod spherules. Each rod spherule consisted of a single synaptic ribbon within the invaginating terminal endings of the horizontal cell (hc) processes. In contrast, the cone pedicles possessed many synaptic ribbons within their junctional complexes. The inner nuclear layer consisted of bipolar, amacrine, Müller cells, and hc. Müller cells possessed intermediate filaments and cell processes that can reach the outer limiting membrane and form connections with each other by desmosomes. The ganglion cells were large multipolar cells with a spherical nucleus and Nissl' bodies in their cytoplasm. The presence of different types of cones arranged in a mosaic pattern in the retina of this species favors the spatial resolution of visual objects. RESEARCH HIGHLIGHTS: This is the first study demonstrating the structure and arrangement of retinal neurons of red-tail shark using light and electron microscopy. The current study showed the presence of different types of cones arranged in a mosaic pattern that may favor the spatial resolution of visual objects in this species. The bipolar, amacrine, Müller, and horizontal cells could be demonstrated.
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Affiliation(s)
- Doaa M Mokhtar
- Department of Cell and Tissues, Faculty of Vet. Medicine, Assiut University, Assiut, Egypt
- Department of Histology and Anatomy, School of veterinary medicine, Badr University in Assiut, Assiut, Egypt
| | - Alessio Alesci
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Simona Pergolizzi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Messina, Italy
| | - Giacomo Zaccone
- Department of Veterinary Sciences, Polo Universitario dell'Annunziata, University of Messina, Messina, Italy
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Sun Y, Ding P, Zhang J, Sun K, Li X, Ge Q, Dang Y, Yu Y, Hu G. Combined neurotoxicity of aged microplastics and thiamethoxam in the early developmental stages of zebrafish (Daniorerio). Environ Pollut 2024; 348:123853. [PMID: 38552772 DOI: 10.1016/j.envpol.2024.123853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/25/2024] [Accepted: 03/22/2024] [Indexed: 04/04/2024]
Abstract
Microplastics (MPs) pollution, together with its consequential effect on aquatic biota, represent a burgeoning environmental concern that has garnered significant scholarly attention. Thiamethoxam (TMX), a prevalently utilized neonicotinoid insecticide, is renowned for its neurotoxic impact and selective action against targeted pests. The aquatic environment serves as a receptacle for numerous pollutants, such as MPs and neonicotinoid insecticides. However, there is currently a lack of comprehensive understanding regarding the toxic effects of co-exposure to aged MPs and neonicotinoid insecticides in aquatic organisms. Therefore, we endeavor to elucidate the deleterious impacts of aged polystyrene (PS) and TMX on zebrafish (Danio rerio) larvae when present at environmentally relevant concentrations, and to reveal the underlying molecular mechanisms driving these effects. Our study showed that exposure to aged PS, TMX, or their combination notably inhibited the heart rate and locomotion of zebrafish larvae, with a pronounced effect observed under combined exposure. Aged PS and TMX were found to diminish the activity of antioxidative enzymes (SOD, CAT, and GST), elevate MDA levels, and disrupt neurotransmitter homeostasis (5-HT, GABA and ACh). Notably, the mixtures exhibited synergistic effects. Moreover, gene expression related to oxidative stress (e.g., gstr1, gpx1a, sod1, cat1, p38a, ho-1, and nrf2b) and neurotransmission (e.g., ache, ChAT, gat1, gabra1, 5ht1b, and 5ht1aa) was significantly altered upon co-exposure to aged PS and TMX in larval zebrafish. In summary, our findings support the harmful effects of aged MPs and the neonicotinoid insecticides they carry on aquatic organisms. Results from this study enhance our understanding of the biological risks of MPs and insecticides, as well as help fill existing knowledge gaps on neonicotinoid insecticides and MPs coexistence toxicity in aquatic environment.
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Affiliation(s)
- Yanan Sun
- The Postgraduate Training Base of Jinzhou Medical University (South China Institute of Environmental Sciences, Ministry of Ecology and Environment), Guangzhou, 510655, China; State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655, China
| | - Ping Ding
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655, China
| | - Jiayi Zhang
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655, China; School of Public Health, China Medical University, Liaoning, 110122, China
| | - Kexin Sun
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655, China
| | - Xintong Li
- The Postgraduate Training Base of Jinzhou Medical University (South China Institute of Environmental Sciences, Ministry of Ecology and Environment), Guangzhou, 510655, China; State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655, China
| | - Qing Ge
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655, China; School of Public Health, China Medical University, Liaoning, 110122, China
| | - Yao Dang
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655, China
| | - Yunjiang Yu
- State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655, China
| | - Guocheng Hu
- The Postgraduate Training Base of Jinzhou Medical University (South China Institute of Environmental Sciences, Ministry of Ecology and Environment), Guangzhou, 510655, China; State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou, 510655, China.
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Jia D, Li Z, Ma H, Ji H, Qi H, Zhang C. Near-Infrared Fluorescence Probe with a New Recognition Moiety for the Specific Detection of Cysteine to Study the Corresponding Physiological Processes in Cells, Zebrafish, and Arabidopsis thaliana. Anal Chem 2024; 96:6030-6036. [PMID: 38569068 DOI: 10.1021/acs.analchem.4c00467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Cysteine (Cys), as one of the biological thiols, is related to many physiological and pathological processes in humans and plants. Therefore, it is necessary to develop a sensitive and selective method for the detection and imaging of Cys in biological organisms. In this work, a novel near-infrared (NIR) fluorescent probe, Probe-Cys, was designed by connecting furancarbonyl, as a new recognition moiety, with Fluorophore-OH via the decomposition of IR-806. The use of the furan moiety is anticipated to produce more effective fluorescence quenching because of the electron-donating ability of the O atom. Probe-Cys has outstanding properties, such as a new recognition group, an emission wavelength in the infrared region at 710 nm, a linear range (0-100 μM), a low detection limit of 0.035 μM, good water solubility, excellent sensitivity, and selectivity without the interference of Hcy, GSH, and HS-. More importantly, Probe-Cys could achieve the detection of endogenous Cys by reacting with the stimulant 1,4-dimercaptothreitol (DTT) and the inhibitor N-ethylmaleimide (NEM) in HepG2 cells and zebrafish. Ultimately, it was successfully applied to obtain images of Arabidopsis thaliana, revealing that the content of Cys in the meristematic zone was higher than that in the elongation zone, which was the first time that the NIR fluorescence probe was used to obtain images of Cys in A. thaliana. The superior properties of the probe exhibit its great potential for use in biosystems to explore the physiological and pathological processes associated with Cys.
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Affiliation(s)
- Dongli Jia
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Zhao Li
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Hongyu Ma
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Haiyang Ji
- Shaanxi Engineering Laboratory for Food Green Processing and Safety Control, and Shaanxi Key Laboratory for Hazard Factors Assessment in Processing and Storage of Agricultural Products, College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi'an 710062, China
| | - Honglan Qi
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
| | - Chengxiao Zhang
- Key Laboratory of Analytical Chemistry for Life Science of Shaanxi Province, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710062, China
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Volotsky S, Segev R. Figure-ground segmentation based on motion in the archerfish. Anim Cogn 2024; 27:33. [PMID: 38616235 PMCID: PMC11016505 DOI: 10.1007/s10071-024-01873-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 04/01/2024] [Accepted: 04/01/2024] [Indexed: 04/16/2024]
Abstract
Figure-ground segmentation is a fundamental process in visual perception that involves separating visual stimuli into distinct meaningful objects and their surrounding context, thus allowing the brain to interpret and understand complex visual scenes. Mammals exhibit varying figure-ground segmentation capabilities, ranging from primates that can perform well on figure-ground segmentation tasks to rodents that perform poorly. To explore figure-ground segmentation capabilities in teleost fish, we studied how the archerfish, an expert visual hunter, performs figure-ground segmentation. We trained archerfish to discriminate foreground objects from the background, where the figures were defined by motion as well as by discontinuities in intensity and texture. Specifically, the figures were defined by grating, naturalistic texture, and random noise moving in counterphase with the background. The archerfish performed the task well and could distinguish between all three types of figures and grounds. Their performance was comparable to that of primates and outperformed rodents. These findings suggest the existence of a complex visual process in the archerfish visual system that enables the delineation of figures as distinct from backgrounds, and provide insights into object recognition in this animal.
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Affiliation(s)
- Svetlana Volotsky
- Department of Biomedical Engineering, Ben-Gurion University of the Negev, Beersheba, Israel
- School of Brain Sciences and Cognition, Ben-Gurion University of the Negev, Beersheba, Israel
- Department of Life Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
| | - Ronen Segev
- Department of Biomedical Engineering, Ben-Gurion University of the Negev, Beersheba, Israel.
- School of Brain Sciences and Cognition, Ben-Gurion University of the Negev, Beersheba, Israel.
- Department of Life Sciences, Ben-Gurion University of the Negev, Beersheba, Israel.
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Alhassan AM. An improved breast cancer classification with hybrid chaotic sand cat and Remora Optimization feature selection algorithm. PLoS One 2024; 19:e0300622. [PMID: 38603682 PMCID: PMC11008855 DOI: 10.1371/journal.pone.0300622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Accepted: 03/03/2024] [Indexed: 04/13/2024] Open
Abstract
Breast cancer is one of the most often diagnosed cancers in women, and identifying breast cancer histological images is an essential challenge in automated pathology analysis. According to research, the global BrC is around 12% of all cancer cases. Furthermore, around 25% of women suffer from BrC. Consequently, the prediction of BrC depends critically on the quick and precise processing of imaging data. The primary reason deep learning models are used in breast cancer detection is that they can produce findings more quickly and accurately than current machine learning-based techniques. Using a BreakHis dataset, we demonstrated in this work the viability of automatically identifying and classifying BrC. The first stage is pre-processing, which employs an Adaptive Switching Modified Decision Based Unsymmetrical Trimmed Median Filter (ASMDBUTMF) to remove high-density noise. After the image has been pre-processed, it is segmented using the Thresholding Level set approach. Next, we propose a hybrid chaotic sand cat optimization technique, together with the Remora Optimization Algorithm (ROA) for feature selection. The suggested strategy facilitates the acquisition of precise functionality attributes, hence simplifying the detection procedure. Additionally, it aids in resolving problems pertaining to global optimization. Following the selection, the best characteristics proceed to the categorization procedure. A DL classifier called the Conditional Variation Autoencoder is used to discriminate between cancerous and benign tumors while categorizing them. Consequently, a classification accuracy of 99.4%, Precision of 99.2%, Recall of 99.1%, F- score of 99%, Specificity of 99.14%, FDR of 0.54, FNR of 0.001, FPR of 0.002, MCC of 0.98 and NPV of 0.99 were obtained using the proposed approach. Furthermore, compared to other research using the current BreakHis dataset, the results of our research are more desirable.
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Affiliation(s)
- Afnan M. Alhassan
- College of Computing and Information Technology, Shaqra University, Shaqra, Saudi Arabia
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Manno C, Carlig E, Falco PP, Castagno P, Budillon G. Life strategy of Antarctic silverfish promote large carbon export in Terra Nova Bay, Ross Sea. Commun Biol 2024; 7:450. [PMID: 38605093 PMCID: PMC11009349 DOI: 10.1038/s42003-024-06122-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 03/28/2024] [Indexed: 04/13/2024] Open
Abstract
Antarctic silverfish Pleuragramma antarcticum is the most abundant pelagic fish in the High Antarctic shelf waters of the Southern Ocean, where it plays a pivotal role in the trophic web as the major link between lower and higher trophic levels. Despite the ecological importance of this species, knowledge about its role in the biogeochemical cycle is poor. We determine the seasonal contribution of Antarctic silverfish to carbon flux in terms of faeces and eggs, from samples collected in the Ross Sea. We find that eggs and faeces production generate a flux accounting for 41% of annual POC flux and that the variability of this flux is modulated by spawning strategy. This study shows the important role of this organism as a vector for carbon flux. Since Antarctic silverfish are strongly dependent on sea-ice, they might be especially sensitive to climatic changes. Our results suggest that a potential decrease in the biomass of this organism is likely to impact marine biogeochemical cycles, and this should be factored in when assessing Southern Ocean carbon budget.
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Affiliation(s)
- Clara Manno
- British Antarctic Survey, Natural Environment Research Council, NERC, Cambridge, UK.
| | - Erica Carlig
- National Research Council (CNR) of Italy, Institute for the study of the Anthropic impacts and the Sustainability of the marine environment (IAS), Genoa, Italy
| | - Pier Paolo Falco
- Department of Life and Environmental Sciences, Marche Polytechnic University, Ancona, Italy
| | - Pasquale Castagno
- Department of Mathematics and Computer Sciences, Physical Sciences and Earth Sciences (MIFT), University of Messina, Messina, Italy
| | - Giorgio Budillon
- Department of Science and Technology, University of Naples "Parthenope", Naples, Italy
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Masuda M, Ihara S, Mori N, Koide T, Miyasaka N, Wakisaka N, Yoshikawa K, Watanabe H, Touhara K, Yoshihara Y. Identification of olfactory alarm substances in zebrafish. Curr Biol 2024; 34:1377-1389.e7. [PMID: 38423017 DOI: 10.1016/j.cub.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 12/08/2023] [Accepted: 02/01/2024] [Indexed: 03/02/2024]
Abstract
Escaping from danger is one of the most fundamental survival behaviors for animals. Most freshwater fishes display olfactory alarm reactions in which an injured fish releases putative alarm substances from the skin to notify its shoaling company about the presence of danger. Here, we identified two small compounds in zebrafish skin extract, designated as ostariopterin and daniol sulfate. Ostariopterin is a pterin derivative commonly produced in many freshwater fishes belonging to the Ostariophysi superorder. Daniol sulfate is a novel sulfated bile alcohol specifically present in the Danio species, including zebrafish. Ostariopterin and daniol sulfate activate distinct glomeruli in the olfactory bulb. Zebrafish display robust alarm reactions, composed of darting, freezing, and bottom dwelling, only when they are concomitantly stimulated with ostariopterin and daniol sulfate. These results demonstrate that the fish alarm reaction is driven through a coincidence detection mechanism of the two compounds along the olfactory neural circuitry.
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Affiliation(s)
- Miwa Masuda
- Laboratory for Systems Molecular Ethology, RIKEN Center for Brain Science, Saitama 351-0198, Japan; RIKEN CBS-KAO Collaboration Center, RIKEN Center for Brain Science, Saitama 351-0198, Japan; ERATO Touhara Chemosensory Signal Project, JST, Tokyo 113-8657, Japan
| | - Sayoko Ihara
- ERATO Touhara Chemosensory Signal Project, JST, Tokyo 113-8657, Japan; Laboratory of Biological Chemistry, Department of Applied Biological Chemistry, The University of Tokyo, Tokyo 113-8657, Japan
| | - Naoki Mori
- Laboratory of Organic Chemistry, Department of Applied Biological Chemistry, The University of Tokyo, Tokyo 113-8657, Japan
| | - Tetsuya Koide
- Laboratory for Systems Molecular Ethology, RIKEN Center for Brain Science, Saitama 351-0198, Japan
| | - Nobuhiko Miyasaka
- Laboratory for Systems Molecular Ethology, RIKEN Center for Brain Science, Saitama 351-0198, Japan; RIKEN CBS-KAO Collaboration Center, RIKEN Center for Brain Science, Saitama 351-0198, Japan
| | - Noriko Wakisaka
- Laboratory for Systems Molecular Ethology, RIKEN Center for Brain Science, Saitama 351-0198, Japan
| | - Keiichi Yoshikawa
- Laboratory of Biological Chemistry, Department of Applied Biological Chemistry, The University of Tokyo, Tokyo 113-8657, Japan
| | - Hidenori Watanabe
- Laboratory of Organic Chemistry, Department of Applied Biological Chemistry, The University of Tokyo, Tokyo 113-8657, Japan
| | - Kazushige Touhara
- ERATO Touhara Chemosensory Signal Project, JST, Tokyo 113-8657, Japan; Laboratory of Biological Chemistry, Department of Applied Biological Chemistry, The University of Tokyo, Tokyo 113-8657, Japan
| | - Yoshihiro Yoshihara
- Laboratory for Systems Molecular Ethology, RIKEN Center for Brain Science, Saitama 351-0198, Japan; RIKEN CBS-KAO Collaboration Center, RIKEN Center for Brain Science, Saitama 351-0198, Japan; ERATO Touhara Chemosensory Signal Project, JST, Tokyo 113-8657, Japan.
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Seli DA, Prendergast A, Ergun Y, Tyagi A, Taylor HS. High NaCl Concentrations in Water Are Associated with Developmental Abnormalities and Altered Gene Expression in Zebrafish. Int J Mol Sci 2024; 25:4104. [PMID: 38612913 PMCID: PMC11012806 DOI: 10.3390/ijms25074104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 03/20/2024] [Accepted: 03/26/2024] [Indexed: 04/14/2024] Open
Abstract
Salt is frequently introduced in ecosystems, where it acts as a pollutant. This study examined how changes in salinity affect the survival and development of zebrafish from the two-cell to the blastocyst stage and from the blastocyst to the larval stage. Control zebrafish embryos were cultured in E3 medium containing 5 mM Sodium Chloride (NaCl), 0.17 mM Potassium Chloride (KCL), 0.33 mM Calcium Chloride (CaCl2), and 0.33 mM Magnesium Sulfade (MgSO4). Experiments were conducted using increasing concentrations of each individual salt at 5×, 10×, 50×, and 100× the concentration found in E3 medium. KCL, CaCl2, and MgSO4 did not result in lethal abnormalities and did not affect early embryo growth at any of the concentrations tested. Concentrations of 50× and 100× NaCl caused embryonic death in both stages of development. Concentrations of 5× and 10× NaCl resulted in uninflated swim bladders in 12% and 65% of larvae, compared to 4.2% of controls, and caused 1654 and 2628 genes to be differentially expressed in blastocysts, respectively. The ATM signaling pathway was affected, and the Sonic Hedgehog pathway genes Shh and Ptc1 implicated in swim bladder development were downregulated. Our findings suggest that increased NaCl concentrations may alter gene expression and cause developmental abnormalities in animals found in affected ecosystems.
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Affiliation(s)
- Denis A. Seli
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06520, USA
| | - Andrew Prendergast
- Yale Zebrafish Phenotyping Core, Yale School of Medicine, New Haven, CT 06520, USA
| | - Yagmur Ergun
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06520, USA
- IVIRMA Global Research Alliance, IVIRMA New Jersey, Marlton, NJ 08053, USA
| | - Antariksh Tyagi
- Department of Genetics, Yale School of Medicine, New Haven, CT 06520, USA
| | - Hugh S. Taylor
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT 06520, USA
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11
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Amorim KDJ, Costa GWWF, Motta-Neto CC, Soares RX, Borges AT, Benetti DD, Cioffi MB, Bertollo LAC, Tanomtong A, Molina WF. Karyotypic changes and diversification time in Epinephelidae groupers (Perciformes). Implications on reproductive isolation. AN ACAD BRAS CIENC 2024; 96:e20221011. [PMID: 38597487 DOI: 10.1590/0001-3765202420221011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 06/26/2023] [Indexed: 04/11/2024] Open
Abstract
Groupers (Epinephelidae and Serranidae) have attracted special attention to fish farming, and their species offer good opportunities for successful hybridizations. Cytogenetic data allow a better understanding of the role of karyotypic diversification in the acquisition of post-zygotic reproductive isolation (RI). Thus, chromosomal analyses were performed on E. striatus (Caribbean Sea), E. coioides and E. tauvina (Indo-Pacific Region), using standard procedures and mapping of six repetitive DNA classes by the in situ hybridization. The three species have 2n=48 chromosomes. The karyotypes of E. coioides and E. striatus are composed only of acrocentric chromosomes (FN=48), while E. tauvina has 8 submetacentric chromosomes (FN=56). Heterochromatin has a preferential centromeric distribution, and the microsatellite repeats are dispersed throughout the chromosomes of all species. The 18S and 5S rDNA sites are unique but show a colocalization arrangement in E. tauvina and E. striatus. The chromosomal organization suggests that the three species still maintain a significant amount of syntenic regions. The range of the karyotype divergence and the RI levels showed low, but goes turn proportionally greater in relation to the divergence time between the parental species. The slow acquisition of postzygotic RI is consistent with the high karyotype homogeneity presented by Epinephelidae family.
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Affiliation(s)
- Karlla Danielle J Amorim
- Universidade Federal do Rio Grande do Norte, Centro de Biociências, Departamento de Biologia Celular e Genética, Av. Senador Salgado Filho, s/n, Campus Universitário, Lagoa Nova, 59078-970 Natal, RN, Brazil
| | - Gideão W W F Costa
- Universidade Federal do Rio Grande do Norte, Centro de Biociências, Departamento de Biologia Celular e Genética, Av. Senador Salgado Filho, s/n, Campus Universitário, Lagoa Nova, 59078-970 Natal, RN, Brazil
| | - Clóvis C Motta-Neto
- Universidade Federal do Rio Grande do Norte, Centro de Biociências, Departamento de Biologia Celular e Genética, Av. Senador Salgado Filho, s/n, Campus Universitário, Lagoa Nova, 59078-970 Natal, RN, Brazil
| | - Rodrigo X Soares
- Universidade Federal do Rio Grande do Norte, Centro de Biociências, Departamento de Biologia Celular e Genética, Av. Senador Salgado Filho, s/n, Campus Universitário, Lagoa Nova, 59078-970 Natal, RN, Brazil
| | - Amanda T Borges
- Universidade Federal do Rio Grande do Norte, Centro de Biociências, Departamento de Biologia Celular e Genética, Av. Senador Salgado Filho, s/n, Campus Universitário, Lagoa Nova, 59078-970 Natal, RN, Brazil
| | - Daniel D Benetti
- University of Miami, Rosenstiel School of Marine and Atmospheric Science (RSMAS), 4600 Rickenbacker Causeway, Miami, FL 33149, USA
| | - Marcelo B Cioffi
- Universidade Federal de São Carlos, Departamento de Genética e Evolução, Laboratório de Citogenética de Peixes, Caixa Postal 676, 13565-905 São Carlos, SP, Brazil
| | - Luiz A C Bertollo
- Universidade Federal de São Carlos, Departamento de Genética e Evolução, Laboratório de Citogenética de Peixes, Caixa Postal 676, 13565-905 São Carlos, SP, Brazil
| | - Alongklod Tanomtong
- Department of Biology, Faculty of Science, Khon Kaen University, Muang, Khon Kaen, 40002,Thailand
- Toxic Substances in Livestock and Aquatic Animals Research Group, Khon Kaen University, Muang, Khon Kaen 40002, Thailand
| | - Wagner F Molina
- Universidade Federal do Rio Grande do Norte, Centro de Biociências, Departamento de Biologia Celular e Genética, Av. Senador Salgado Filho, s/n, Campus Universitário, Lagoa Nova, 59078-970 Natal, RN, Brazil
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12
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Park J, Heo S, Lee G, Kim T, Oh SE, Kwak MS, Jeong DW. The addition of jogi, Micropogonias undulates, affects amino acid content in kimchi fermentation. PLoS One 2024; 19:e0300249. [PMID: 38573994 PMCID: PMC10994411 DOI: 10.1371/journal.pone.0300249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Accepted: 02/23/2024] [Indexed: 04/06/2024] Open
Abstract
The effects of jogi (the fish Atlantic croaker, Micropogonias undulatus) on the production of physicochemical components, such as color, organic acids, and amino acids, in kimchi, a traditional fermented vegetable food of Korea, were determined. As fermentation progressed, the color change of jogi-added kimchi increased, but in comparison with that of the control group without jogi-added kimchi, was difficult to distinguish with the naked eye. Reducing sugar decreased in all experimental groups, and as fermentation progressed, kimchi with jogi showed a lower value. Acetic acid, citric acid, lactic acid, and ethanol, were highly produced in both types of kimchi, and above all, the jogi-baechu-kimchi group showed higher acetic acid and lactic acid contents than the control group. The increase and decrease of amino acids were similar in both types of kimchi. However, significantly, immediately after manufacture, the savory components aspartic acid and glutamic acid were detected higher than the control group. Subsequently, the fermentation tended to decrease as it progressed, but the content was higher than that of the control group. The above results show that jogi addition has a greater effect on the contents of amino acid, especially the savory component, than on the physicochemical components.
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Affiliation(s)
- Junghyun Park
- Department of Food and Nutrition, Dongduk Women’s University, Seoul, Republic of Korea
| | - Sojeong Heo
- Department of Food and Nutrition, Dongduk Women’s University, Seoul, Republic of Korea
| | - Gawon Lee
- Department of Food and Nutrition, Dongduk Women’s University, Seoul, Republic of Korea
| | - Tao Kim
- Department of Food and Nutrition, Dongduk Women’s University, Seoul, Republic of Korea
| | - Seung-Eun Oh
- Department of Food and Nutrition, Dongduk Women’s University, Seoul, Republic of Korea
| | - Mi-Sun Kwak
- KookminBio Corporation, Seoul, Republic of Korea
| | - Do-Won Jeong
- Department of Food and Nutrition, Dongduk Women’s University, Seoul, Republic of Korea
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Jiang X, Niu M, Qin K, Hu Y, Li Y, Che C, Wang C, Mu C, Wang H. Enhancement of Nutrient Composition and Non-Volatile Flavor Substances in Muscle Tissue of Red Drum ( Sciaenops ocellatus) Through Inland Low Salinity Saline-Alkaline Water Culture. J Agric Food Chem 2024; 72:7326-7335. [PMID: 38507568 DOI: 10.1021/acs.jafc.3c08717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
The red drum (Sciaenops ocellatus), a globally significant marine aquaculture species, boasts formidable osmoregulatory capabilities and remarkable adaptability to low salinity, making it an ideal candidate for commercial cultivation in inland low salinity saline-alkaline waters. However, studies on the fundamental nutritional composition and flavor quality of S. ocellatus in these inland low salinity saline-alkaline waters remain unreported. This study delves into the impact of inland low salinity saline-alkaline environments on the basic nutritional components and nonvolatile flavor substances (including free amino acids and free nucleotides) in the muscle tissue of S. ocellatus. The findings reveal that redfish cultivated in these conditions exhibit a significant increase in the crude fat, ash, and protein content in their dorsal muscle tissue, coupled with a decrease in moisture content (p < 0.05), indicating an enhancement in the nutritional value of the dorsal muscle tissue. Furthermore, this cultivation environment significantly elevates the content of free amino acids in the muscle tissue (p < 0.05), particularly those contributing to umami and sweet tastes, while reducing the relative content of bitter amino acids. Although the total content of free nucleotides decreased, the equivalent umami concentration (EUC) in the muscle tissue markedly increased (p < 0.05) due to the synergistic effect of umami amino acids and flavor nucleotides, enhancing the umami taste characteristics. Therefore, inland low salinity saline-alkaline aquaculture not only elevates the nutritional value of S. ocellatus muscle tissue but also improves its umami flavor characteristics. This discovery opens new perspectives for further research into the impact of inland low salinity saline-alkaline environments on the flavor properties of marine animals.
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Affiliation(s)
- Xiaosong Jiang
- School of Marine Science, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Mingming Niu
- School of Marine Science, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Kangxiang Qin
- School of Marine Science, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Yun Hu
- School of Marine Science, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Yuntao Li
- School of Marine Science, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Chenxi Che
- School of Marine Science, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Chunlin Wang
- School of Marine Science, Ningbo University, Ningbo, Zhejiang 315211, China
- Key Laboratory of Aquacultral Biotechnology Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Changkao Mu
- School of Marine Science, Ningbo University, Ningbo, Zhejiang 315211, China
- Key Laboratory of Aquacultral Biotechnology Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Huan Wang
- School of Marine Science, Ningbo University, Ningbo, Zhejiang 315211, China
- Key Laboratory of Aquacultral Biotechnology Ministry of Education, Ningbo University, Ningbo, Zhejiang 315211, China
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14
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Tokumaru T, Apolinario MEC, Shimizu N, Umeda R, Honda K, Shikano K, Teranishi H, Hikida T, Hanada T, Ohta K, Li Y, Murakami K, Hanada R. Hepatic extracellular ATP/adenosine dynamics in zebrafish models of alcoholic and metabolic steatotic liver disease. Sci Rep 2024; 14:7813. [PMID: 38565862 PMCID: PMC10987586 DOI: 10.1038/s41598-024-58043-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 03/25/2024] [Indexed: 04/04/2024] Open
Abstract
Steatotic liver disease (SLD) is a burgeoning health problem predominantly associated with excessive alcohol consumption, which causes alcohol-related liver disease (ALD), and high caloric intake, which results in metabolic dysfunction-associated SLD (MASLD). The pathogenesis of ALD and MASLD, which can progress from steatohepatitis to more severe conditions such as liver fibrosis, cirrhosis, and hepatocellular carcinoma, is complicated by several factors. Recently, extracellular ATP and adenosine (Ado), as damage-associated molecular patterns, were reported to promote inflammation and liver fibrosis, contributing to SLD pathogenesis. Here, we explored the in vivo dynamics of hepatic extracellular ATP and Ado during the progression of steatohepatitis using a genetically encoded GPCR-activation-based sensor (GRAB) in zebrafish models. We established hepatocyte-specific GRABATP and GRABAdo in zebrafish and investigated the changes in in vivo hepatic extracellular ATP and Ado levels under ALD or MASLD conditions. Disease-specific changes in hepatocyte extracellular ATP and Ado levels were observed, clearly indicating a correlation between hepatocyte extracellular ATP/Ado dynamics and disease progression. Furthermore, clodronate, a vesicular nucleotide transporter inhibitor, alleviated the MASLD phenotype by reducing the hepatic extracellular ATP and Ado content. These findings provide deep insights into extracellular ATP/Ado dynamics in disease progression, suggesting therapeutic potential for ALD and MASLD.
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Affiliation(s)
- Tomoko Tokumaru
- Department of Neurophysiology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | | | - Nobuyuki Shimizu
- Department of Cell Biology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Ryohei Umeda
- Department of Neurophysiology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
- Department of Advanced Medical Science, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Koichi Honda
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Kenshiro Shikano
- Department of Neurophysiology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Hitoshi Teranishi
- Department of Neurophysiology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Takatoshi Hikida
- Laboratory for Advanced Brain Functions, Institute for Protein Research, Osaka University, Suita, Osaka, Japan
| | - Toshikatsu Hanada
- Department of Cell Biology, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Keisuke Ohta
- Advanced Imaging Research Center, Kurume University, Kurume, Japan
| | - Yulong Li
- State Key Laboratory of Membrane Biology, School of Life Sciences, Peking University, Beijing, China
| | - Kazunari Murakami
- Division of Gastroenterology, Department of Internal Medicine, Faculty of Medicine, Oita University, Yufu, Oita, Japan
| | - Reiko Hanada
- Department of Neurophysiology, Faculty of Medicine, Oita University, Yufu, Oita, Japan.
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15
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Schwob G, Cabrol L, Saucède T, Gérard K, Poulin E, Orlando J. Unveiling the co-phylogeny signal between plunderfish Harpagifer spp. and their gut microbiomes across the Southern Ocean. Microbiol Spectr 2024; 12:e0383023. [PMID: 38441978 DOI: 10.1128/spectrum.03830-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 02/09/2024] [Indexed: 03/07/2024] Open
Abstract
Understanding the factors that sculpt fish gut microbiome is challenging, especially in natural populations characterized by high environmental and host genomic complexity. However, closely related hosts are valuable models for deciphering the contribution of host evolutionary history to microbiome assembly, through the underscoring of phylosymbiosis and co-phylogeny patterns. Here, we propose that the recent diversification of several Harpagifer species across the Southern Ocean would allow the detection of robust phylogenetic congruence between the host and its microbiome. We characterized the gut mucosa microbiome of 77 individuals from four field-collected species of the plunderfish Harpagifer (Teleostei, Notothenioidei), distributed across three biogeographic regions of the Southern Ocean. We found that seawater physicochemical properties, host phylogeny, and geography collectively explained 35% of the variation in bacterial community composition in Harpagifer gut mucosa. The core microbiome of Harpagifer spp. gut mucosa was characterized by a low diversity, mostly driven by selective processes, and dominated by a single Aliivibrio Operational Taxonomic Unit (OTU) detected in more than 80% of the individuals. Nearly half of the core microbiome taxa, including Aliivibrio, harbored co-phylogeny signal at microdiversity resolution with host phylogeny, indicating an intimate symbiotic relationship and a shared evolutionary history with Harpagifer. The clear phylosymbiosis and co-phylogeny signals underscore the relevance of the Harpagifer model in understanding the role of fish evolutionary history in shaping the gut microbiome assembly. We propose that the recent diversification of Harpagifer may have led to the diversification of Aliivibrio, exhibiting patterns that mirror the host phylogeny. IMPORTANCE Although challenging to detect in wild populations, phylogenetic congruence between marine fish and its microbiome is critical, as it highlights intimate associations between hosts and ecologically relevant microbial symbionts. Our study leverages a natural system of closely related fish species in the Southern Ocean to unveil new insights into the contribution of host evolutionary trajectory on gut microbiome assembly, an underappreciated driver of the global marine fish holobiont. Notably, we unveiled striking evidence of co-diversification between Harpagifer and its microbiome, demonstrating both phylosymbiosis of gut bacterial communities and co-phylogeny of some specific bacterial symbionts, mirroring the host diversification patterns. Given Harpagifer's significance as a trophic resource in coastal areas and its vulnerability to climatic and anthropic pressures, understanding the potential evolutionary interdependence between the hosts and its microbiome provides valuable microbial candidates for future monitoring, as they may play a pivotal role in host species acclimatization to a rapidly changing environment.
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Affiliation(s)
- Guillaume Schwob
- Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Santiago, Chile
- Department of Ecological Sciences, Faculty of Sciences, University of Chile, Santiago, Chile
- Institute of Ecology and Biodiversity, Santiago, Chile
| | - Léa Cabrol
- Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Santiago, Chile
- Institute of Ecology and Biodiversity, Santiago, Chile
- Aix Marseille University, Univ Toulon, CNRS, IRD, Mediterranean Institute of Oceanography (MIO) UM 110, Marseille, France, Marseille, France
| | - Thomas Saucède
- UMR 6282 Biogeosciences, University Bourgogne Franche-Comté, CNRS, EPHE, Dijon, France
| | - Karin Gérard
- Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Santiago, Chile
- Laboratory of Antarctic and Subantarctic Marine Ecosystems, Faculty of Sciences, University of Magallanes, Punta Arenas, Chile
- Cape Horn International Center, Puerto Williams, Chile
| | - Elie Poulin
- Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Santiago, Chile
- Department of Ecological Sciences, Faculty of Sciences, University of Chile, Santiago, Chile
- Institute of Ecology and Biodiversity, Santiago, Chile
| | - Julieta Orlando
- Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Santiago, Chile
- Department of Ecological Sciences, Faculty of Sciences, University of Chile, Santiago, Chile
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16
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Perry WB. Macabre 'Finding Nemo' remake, starring the reticulated damselfish (Dascyllus reticulatus). J Fish Biol 2024; 104:911. [PMID: 38602864 DOI: 10.1111/jfb.15742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
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17
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Guo C, Ye W, Cao D, Shi M, Zhang W, Cheng Y, Wang Y, Xia XQ. Unraveling the stereoscopic gene transcriptional landscape of zebrafish using FishSED, a fish spatial expression database with multispecies scalability. Sci China Life Sci 2024; 67:843-846. [PMID: 37758906 DOI: 10.1007/s11427-023-2418-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 07/18/2023] [Indexed: 09/29/2023]
Affiliation(s)
- Cheng Guo
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Weidong Ye
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Danying Cao
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Mijuan Shi
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
- The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China.
| | - Wanting Zhang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
- The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yingyin Cheng
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
- The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yaping Wang
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China
- The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China
| | - Xiao-Qin Xia
- Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan, 430072, China.
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing, China.
- The Innovative Academy of Seed Design, Chinese Academy of Sciences, Beijing, 100101, China.
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18
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Medina DM, Acevedo-Gomez AV, Pellegrini Malpiedi L, Leiva LC. Biochemical characterization of acid proteases from the stomach of palometa (Pygocentrus nattereri, Kner 1858) with potential industrial application. Int J Biol Macromol 2024; 264:130548. [PMID: 38431015 DOI: 10.1016/j.ijbiomac.2024.130548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2023] [Revised: 01/30/2024] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
Pepsin is one of the major enzymes with significant importance in the food industry, biomedicines, and pharmaceutical formulations. In this work, the main objective was to biochemically characterize a pepsin-like enzymatic extract obtained from Pygocentrus nattereri, a predatory freshwater fish, focusing on their potential industrial application. The obtained extract exhibited optimal activity at 45 °C and pH 1.0-2.0. These proteases remained stable after 2 h of incubation at temperatures ranging from 0° to 45 °C and within pH range of 1.0 to 7.0. Their activity was significantly affected in presence of pepstatin A and SDS, 10 μM and 3.46 mM respectively, while EDTA and PMSF showed partial inhibitory effects. Divalent cations (Ca2+ and Mg2+) did not inhibit the proteolytic activity of the extract; in fact, it improved at a 5 mM CaCl2 concentration. As the NaCl concentration increased, the enzyme activity decreased. However, after desalination, 90 % of the activity was recovered within the tested exposure time. Besides, this extract demonstrated exceptional versatility across diverse industrial applications, including collagen extraction augmentation, IgG hydrolysis facilitation, and silver and polyester recovery from X-ray films. Our results suggest that the obtained enzymatic extract has a wide range of potential applications.
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Affiliation(s)
- D M Medina
- Laboratorio de Investigación en Proteínas (LabInPro), IQUIBA-NEA, CONICET, FACENA, UNNE, Campus "Deodoro Roca" Av. Libertad N°5460, 3400 Corrientes, Argentina; Instituto de Procesos Biotecnológicos y Químicos (IPROBYQ), CONICET-UNR, Mitre 1998, 2000 Rosario, Argentina.
| | - A V Acevedo-Gomez
- Laboratorio de Investigación en Proteínas (LabInPro), IQUIBA-NEA, CONICET, FACENA, UNNE, Campus "Deodoro Roca" Av. Libertad N°5460, 3400 Corrientes, Argentina
| | - L Pellegrini Malpiedi
- Instituto de Procesos Biotecnológicos y Químicos (IPROBYQ), CONICET-UNR, Mitre 1998, 2000 Rosario, Argentina.
| | - L C Leiva
- Laboratorio de Investigación en Proteínas (LabInPro), IQUIBA-NEA, CONICET, FACENA, UNNE, Campus "Deodoro Roca" Av. Libertad N°5460, 3400 Corrientes, Argentina.
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19
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Landaeta MF, Pareja M, Hüne M, Zenteno-Devaud L, Vera-Duarte J, Bernal-Durán V, Castillo MI, La Mesa M. Morphology and diet are decoupled in nearshore notothenoids from King George Island, West Antarctica. J Fish Biol 2024; 104:957-968. [PMID: 38032136 DOI: 10.1111/jfb.15632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 11/21/2023] [Accepted: 11/24/2023] [Indexed: 12/01/2023]
Abstract
Antarctic notothenioid fishes show wide adaptive morphological radiation, linked to habitat preferences and food composition. However, direct comparisons of phenotypic variability and feeding habits are still lacking, particularly in stages inhabiting nearshore areas. To assess these relationships, we collected juveniles and adults of the most common benthic species inhabiting shallow waters off the South Shetland Islands within a similar size range, the plunderfish Harpagifer antarcticus, the black rockcod Notothenia coriiceps, and the marbled rockcod Notothenia rossii. Individual size ranges varied from 44.0 to 98.9 mm standard length (LS) (H. antarcticus), from 95.8 to 109.3 mm LS (N. coriiceps), and from 63.0 to 113.0 mm LS (N. rossii). Notothenioid fish showed different morphospace variability, being larger for H. antarcticus than the other Notothenia species and associated with the position of the posterior end of the operculum, along with the location and relative size of the eye. The evolutionary allometry was low, but the static allometry was much higher, especially for H. antarcticus and N. rossii. The diet was mainly carnivorous, consisting of amphipods and euphausiids. Macroalgae were scarce or totally absent in the gut contents of all species. Only H. antarcticus showed an increase in the prey number and ingested prey volume with fish size. Finally, there was a significant covariation between shape changes and LS in all species (allometric effects), however, not with prey composition, probably due to the small size range or ontogenetic stage and the relative similarity (or lack of contrast) in the benthic environment that they utilized.
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Affiliation(s)
- Mauricio F Landaeta
- Laboratorio de Ictiología e Interacciones Biofísicas (LABITI), Instituto de Biología, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
- Centro de Observación Marino para Estudios de Riesgos del Ambiente Costero (COSTA-R), Universidad de Valparaíso, Viña del Mar, Chile
- Millennium Nucleus for the Ecology and Conservation of Temperate Mesophotic Reef Ecosystem (NUTME), Las Cruces, Chile
| | - Matías Pareja
- Laboratorio de Ictiología e Interacciones Biofísicas (LABITI), Instituto de Biología, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - Mathias Hüne
- Centro de Investigación para la Conservación de los Ecosistemas Australes (ICEA), Punta Arenas, Chile
- Rewilding Chile, Puerto Varas, Chile
| | - Lisette Zenteno-Devaud
- Centro de Estudios del Cuaternario Fuego-Patagonia y Antártica, Avenida España 184, Punta Arenas, Chile
| | - Javier Vera-Duarte
- Laboratorio de Ictiología e Interacciones Biofísicas (LABITI), Instituto de Biología, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
- Programa de Magíster en Ecología Marina, Facultad de Ciencias, Universidad Católica de la Santísima Concepción, Concepción, Chile
| | - Valentina Bernal-Durán
- Laboratorio de Ictiología e Interacciones Biofísicas (LABITI), Instituto de Biología, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
- Millenium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Santiago, Chile
| | - Manuel I Castillo
- Centro de Observación Marino para Estudios de Riesgos del Ambiente Costero (COSTA-R), Universidad de Valparaíso, Viña del Mar, Chile
- Laboratorio de Oceanografía Física y Satelital (LOFISAT), Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Viña del Mar, Chile
| | - Mario La Mesa
- CNR, Istituto di Scienze Polari (ISP), c/o Area di Ricerca di Bologna, Bologna, Italy
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20
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du Toit HD, Rishworth GM, Strydom NA, Welman S. High levels of metacercarial infestation (family: Diplostomidae) do not affect host energetics and swimming performance in the Epaulette goby (Coryogalops sordidus, Gobiidae). J Fish Biol 2024; 104:1165-1179. [PMID: 38235536 DOI: 10.1111/jfb.15657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 12/14/2023] [Accepted: 01/02/2024] [Indexed: 01/19/2024]
Abstract
Parasites have deleterious effects on their hosts, often resulting in altered host behavior or increased energy expenditure. When organisms are exposed to suboptimal environments, parasite loading may increase. Microbialite pools along the warm temperate South African coastline have been hypothesized as refugia for Epaulette gobies (Coryogalops sordidus, Gobiidae) when they are outside of their previously known subtropical distribution. The aim of this study was to determine if C. sordidus individuals infected with metacercarial cysts display higher metabolic rates or different swimming behavior compared to noninfected individuals. We measured each goby's swimming performance using a critical station-holding speed (Ucrit) test (n = 60) and visually scored their swimming behavior (n = 52) during these measurements. Also, we measured the metabolic rate of gobies using an intermittent flow respirometer system to determine standard metabolic rate (SMR) and maximum metabolic rate (MMR) from gobies at 21°C before and after swimming trials. Metacercarial load carried by infected gobies seemingly had no impact on the host's energetics (SMR or MMR), swimming ability (as repeated Ucrit tests), or swimming behavior compared to noninfected gobies. Thus, the metacercarial intensity observed in gobies in the current study appeared to have no impact on host swimming performance or behavior. Furthermore, the swimming capacity observed for C. sordidus, in general, suggests that this goby is a poor swimmer compared to other gobiid species.
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Affiliation(s)
- Hendrik D du Toit
- Department of Zoology, Nelson Mandela University, Gqberha, South Africa
| | - Gavin M Rishworth
- Department of Zoology, Nelson Mandela University, Gqberha, South Africa
- Institute for Coastal and Marine Research (CMR), Nelson Mandela University, Gqeberha, South Africa
| | - Nadine A Strydom
- Department of Zoology, Nelson Mandela University, Gqberha, South Africa
- Institute for Coastal and Marine Research (CMR), Nelson Mandela University, Gqeberha, South Africa
| | - Shaun Welman
- Department of Zoology, Nelson Mandela University, Gqberha, South Africa
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21
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Jackstadt MM, Hutson L, Liang JO, Pickart MA, Pierret C, Franz-Odendaal TA. Zebrafish in Education: Tackling Big Problems with Little Fish. Zebrafish 2024; 21:71-72. [PMID: 38621219 DOI: 10.1089/zeb.2024.0141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024] Open
Affiliation(s)
- Madelyn M Jackstadt
- Department of Chemistry, Washington University in St. Louis, St. Louis, Missouri, USA
| | - Lara Hutson
- Department of Biological Sciences, University at Buffalo, Buffalo, New York, USA
| | - Jennifer O Liang
- Department of Biology, University of Minnesota Duluth, Duluth, Minnesota, USA
| | - Michael A Pickart
- Department of Pharmaceutical Science, School of Pharmacy, Concordia University Wisconsin, Mequon, Wisconsin, USA
| | - Chris Pierret
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota, USA
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22
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Franklin EC, Platt MT, Andrade P. Increased occurrence of the rare golden color morph of Pacific chub Kyphosus sandwicensis in a no-take marine reserve. J Fish Biol 2024; 104:1237-1240. [PMID: 38145886 DOI: 10.1111/jfb.15644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2023] [Revised: 11/27/2023] [Accepted: 12/08/2023] [Indexed: 12/27/2023]
Abstract
Pacific chub, Kyphosus sandwicensis, are typically gray but some individuals display a golden color morph. We estimated that the frequency of occurrence of the golden morphs increased significantly from 2007 (1.9%) and 2012 (2.6%) to 2017 (5.0%) inside a no-take marine reserve around Nihoa Island in the Northwestern Hawaiian Islands. While sporadic observations of a golden color morph have been noted for several other marine fish species, we provide a quantitative estimate of changes in the frequency of occurrence of the morph within a wild marine population.
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Affiliation(s)
- Erik C Franklin
- Hawai'i Institute of Marine Biology, School of Ocean and Earth Science and Technology, University of Hawai'i at Manoa, Kane'ohe, Hawaii, USA
| | - Madeleine T Platt
- Hawai'i Institute of Marine Biology, School of Ocean and Earth Science and Technology, University of Hawai'i at Manoa, Kane'ohe, Hawaii, USA
- Dalhousie University, Halifax, Nova Scotia, Canada
| | - Pelika Andrade
- University of Hawai'i Sea Grant College Program, Honolulu, Hawaii, USA
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23
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Coltogirone RA, Kuhn SL, Freeland SP, Bergeron SA. Fish in a Dish: Using Zebrafish in Authentic Science Research Experiences for Under-represented High School Students from West Virginia. Zebrafish 2024; 21:80-91. [PMID: 37449810 PMCID: PMC11035852 DOI: 10.1089/zeb.2022.0074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023] Open
Abstract
Early research experiences positively affect students' interest in STEM careers, and develop practical science and critical thinking skills. However, outreach opportunities are not equally accessible for all students. In states like West Virginia, where many students live in rural Appalachian communities, opportunities for engaging in STEM experiences are limited. In addition, rural teachers may not be equipped to provide authentic research experiences for students due to lack of resources or support. For many students in West Virginia, the Health Sciences and Technology Academy (HSTA) is a major opportunity for STEM engagement. Since its inception in 1998, HSTA has spread to 26 of 55 counties in West Virginia. The program recruits first-generation, low-socioeconomic status, rurally living, and African American high school students who are under-represented in STEM fields. Our research laboratory partnered with HSTA to implement an innovative, hands-on research camp using zebrafish for students participating in their annual junior-level biomedical sciences summer camp. Our camp was held in-person and adapted to an online format during the Covid-19 pandemic. We used pre-post surveys in both camps to assess impacts on science confidence and to collect information about general perceptions of zebrafish, research, and STEM fields. We found that students participating in the in-person and online camps experienced similar overall gains in science confidence. We also identified strong interest in zebrafish, research, and STEM degrees among online students. Online students did not prefer virtual learning experiences; however, they still enjoyed our camp. We also surveyed high school teachers volunteering for HSTA to identify factors that would encourage use of zebrafish in classrooms. The most prominent needs include classroom supplies, experience, and funding. Our successful science-education partnership demonstrates that zebrafish research experiences foster positive outcomes for under-represented students, and can inform future outreach efforts and collaborations with teachers.
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Affiliation(s)
| | - Summer L. Kuhn
- Health Sciences Center & Health Sciences Technology Academy, West Virginia University, Morgantown, West Virginia, USA
| | - Sean P. Freeland
- Health Sciences Center & Health Sciences Technology Academy, West Virginia University, Morgantown, West Virginia, USA
| | - Sadie A. Bergeron
- Department of Biology, West Virginia University, Morgantown, West Virginia, USA
- Department of Neuroscience, West Virginia University, Morgantown, West Virginia, USA
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24
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Liu T, Dong H, Zhao J, Shang D, Li Y, Xie R. The concentration of dissolved organic matter impacts the neurobehavior in female zebrafish exposed to cyclophosphamide. Comp Biochem Physiol C Toxicol Pharmacol 2024; 278:109866. [PMID: 38373514 DOI: 10.1016/j.cbpc.2024.109866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 02/08/2024] [Accepted: 02/15/2024] [Indexed: 02/21/2024]
Abstract
Cyclophosphamide (CP) is a broad-spectrum anticancer drug for various cancers and frequently detected in aquatic environments, reaching concentrations up to 22 μg/L. However, there is limited understanding of the toxicities of CP with the presence of dissolved organic matter, a ubiquitous component in aquatic environments, in fish. In this study, we investigated the behaviors, morphological alterations of retina, and related gene transcripts in zebrafish exposed to CP (0 and 50 μg/L) and Humic acid (HA, a main component of DOM) at concentrations of 0, 3, 10, and 30 mg-C/L for 30 days. The results showed that, relative to the zebrafish in CP treatment, HA at 30 mg-C/L increased the locomotion (12.1 % in the light and 7.2 % in the dark) and startle response (9.7 %), while inhibiting the anxiety (12.5 %) and cognition of female zebrafish (24.6 %). The levels of transcripts of neurotransmitter- (tph1b and ache), neuroinflammation-(il-6 and tnfα) and antioxidant-(gpx) related genes in the brain of female adult were also altered by CP with the presence of HA. In addition, HA promoted the transgenerational effects of CP on the neurobehaviors. Therefore, HA can enhance potential neurotoxicity of CP in female fish through alteration neurotransmission related genes. Our findings provide new insights into the toxicity and underlying mechanisms of CP with the presence of dissolved organic matter, thereby contribute to a deeper understanding of the risks posed by CP in aquatic ecosystems.
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Affiliation(s)
- Tianming Liu
- China MCC20 Group Corp., Ltd., Shanghai 201999, China.
| | - Heru Dong
- China MCC20 Group Corp., Ltd., Shanghai 201999, China
| | - Jianxing Zhao
- China MCC20 Group Corp., Ltd., Shanghai 201999, China
| | | | - Yindong Li
- China MCC20 Group Corp., Ltd., Shanghai 201999, China
| | - Rong Xie
- China MCC20 Group Corp., Ltd., Shanghai 201999, China
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25
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Schindler S. Predictivism and avoidance of ad hoc-ness: An empirical study. Stud Hist Philos Sci 2024; 104:68-77. [PMID: 38479234 DOI: 10.1016/j.shpsa.2023.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 10/05/2023] [Accepted: 11/23/2023] [Indexed: 04/10/2024]
Abstract
Predictivism is the thesis that evidence successfully predicted by a scientific theory counts more (or ought to count more) in the confirmation of that theory than already known evidence would. One rationale that has been proposed for predictivism is that predictive success guards against ad hoc hypotheses. Despite the intuitive attraction of predictivism, there is historical evidence that speaks against it. As valuable as the historical evidence may be, however, it is largely indirect evidence for the epistemic attitudes of individual - albeit prominent - scientists. This paper presents the results of an empirical study of scientists' attitudes toward predictivism and ad hoc-ness (n = 492), which will put the debate on a more robust empirical footing. The paper also draws attention to a tension between the ad hoc-ness avoidance rationale of predictivism and the ways philosophers have spelled out the notion of ad hoc-ness.
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Affiliation(s)
- Samuel Schindler
- Centre for Science Studies, Department of Mathematics, Aarhus University, Ny Munkegade 118, 8000 Aarhus, Denmark.
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26
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Barcelos LMD, Barreiros JB, Barreiros JP. First record of the great barracuda, Sphyraena barracuda ( Perciformes, Sphyraenidae), in the Azores, north-east Atlantic. J Fish Biol 2024; 104:1255-1257. [PMID: 38240296 DOI: 10.1111/jfb.15655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/27/2023] [Accepted: 12/27/2023] [Indexed: 04/12/2024]
Abstract
One individual of Sphyraena barracuda was collected on August 5, 2023, in the northern coast of Terceira Island, Azores, Portugal, by spearfishing. In this note, we report this first record and discuss the occurrence, which represents the northernmost one in the north-east Atlantic.
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Affiliation(s)
- Luís M D Barcelos
- Faculty of Agricultural Sciences and Environment, University of the Azores, Angra do Heroísmo, Portugal
- Centre for Ecology, Evolution and Environmental Changes-Azorean Biodiversity Group, CHANGE-Global Change and Sustainability Institute, Angra do Heroísmo, Portugal
| | - João B Barreiros
- Centre for Ecology, Evolution and Environmental Changes-Azorean Biodiversity Group, CHANGE-Global Change and Sustainability Institute, Angra do Heroísmo, Portugal
- Department of Earth and Environmental Sciences (DISAT), University of Milano-Bicocca, Milan, Italy
| | - João P Barreiros
- Faculty of Agricultural Sciences and Environment, University of the Azores, Angra do Heroísmo, Portugal
- Centre for Ecology, Evolution and Environmental Changes-Azorean Biodiversity Group, CHANGE-Global Change and Sustainability Institute, Angra do Heroísmo, Portugal
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27
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Shelton DS, Suriyampola PS, Dinges ZM, Glaholt SP, Shaw JR, Martins EP. Plants buffer some of the effects of a pair of cadmium-exposed zebrafish on the un-exposed majority. Environ Toxicol Pharmacol 2024; 107:104419. [PMID: 38508506 PMCID: PMC11042042 DOI: 10.1016/j.etap.2024.104419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 03/10/2024] [Accepted: 03/14/2024] [Indexed: 03/22/2024]
Abstract
Certain individuals have a disproportionate effect on group responses. Characteristics may include susceptibility to pollutants, such as cadmium (Cd), a potent trace metal. Here, we show how a pair of Cd-exposed individuals can impact the behavior of unexposed groups. We used behavioral assessments to characterize the extent of the effects of the Cd-exposed individuals on group boldness, cohesion, foraging, activity, and responses to plants. We found that groups with a pair of Cd-exposed fish remained closer to novel stimuli and plants than did groups with untreated (control) fish. The presence of plants reduced Cd-induced differences in shoal cohesion and delays feeding in male shoals. Shoals with Cd- and water-treated fish were equally active. The results suggest that fish acutely exposed to environmentally relevant Cd concentrations can have profound effects on the un-exposed majority. However, the presence of plants may mitigate the effects of contaminants on some aspects of social behavior.
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Affiliation(s)
- Delia S Shelton
- Department of Biology, University of Miami, 1301 Memorial Dr, Coral Gables, FL 33134, USA.
| | - Piyumika S Suriyampola
- School of Life Sciences, Arizona State University, 427 East Tyler Mall, Tempe, AZ 85287, USA
| | - Zoe M Dinges
- Department of Biology, Indiana University, 1001 E 3rd St, Bloomington, IN 47405, USA
| | - Stephen P Glaholt
- O'Neill School of Public and Environmental Affairs, Indiana University, 1315 E 10th St, Bloomington, IN 47405, USA
| | - Joseph R Shaw
- O'Neill School of Public and Environmental Affairs, Indiana University, 1315 E 10th St, Bloomington, IN 47405, USA
| | - Emília P Martins
- School of Life Sciences, Arizona State University, 427 East Tyler Mall, Tempe, AZ 85287, USA
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28
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Guan Y, Chen J, Guan H, Chen TT, Teng Y, Wei Z, Li Z, Ouyang S, Chen X. Structural and Functional Characterization of a Fish Type I Subgroup d IFN Reveals Its Binding to Receptors. J Immunol 2024; 212:1207-1220. [PMID: 38345351 PMCID: PMC10944818 DOI: 10.4049/jimmunol.2300651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Accepted: 01/16/2024] [Indexed: 03/20/2024]
Abstract
Teleost fish type I IFNs and the associated receptors from the cytokine receptor family B (CRFB) are characterized by remarkable diversity and complexity. How the fish type I IFNs bind to their receptors is still not fully understood. In this study, we demonstrate that CRFB1 and CRFB5 constitute the receptor pair through which type I subgroup d IFN (IFNd) from large yellow croaker, Larimichthys crocea, activates the conserved JAK-STAT signaling pathway as a part of the antiviral response. Our data suggest that L. crocea IFNd (LcIFNd) has a higher binding affinity with L. crocea CRFB5 (LcCRFB5) than with LcCRFB1. Furthermore, we report the crystal structure of LcIFNd at a 1.49-Å resolution and construct structural models of LcIFNd in binary complexes with predicted structures of extracellular regions of LcCRFB1 and LcCRFB5, respectively. Despite striking similarities in overall architectures of LcIFNd and its ortholog human IFN-ω, the receptor binding patterns between LcIFNd and its receptors show that teleost and mammalian type I IFNs may have differentially selected helices that bind to their homologous receptors. Correspondingly, key residues mediating binding of LcIFNd to LcCRFB1 and LcCRFB5 are largely distinct from the receptor-interacting residues in other fish and mammalian type I IFNs. Our findings reveal a ligand/receptor complex binding mechanism of IFNd in teleost fish, thus providing new insights into the function and evolution of type I IFNs.
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Affiliation(s)
- Yanyun Guan
- State Key Laboratory of Mariculture Breeding, Key Laboratory of Marine Biotechnology of Fujian Province, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Jingjie Chen
- State Key Laboratory of Mariculture Breeding, Key Laboratory of Marine Biotechnology of Fujian Province, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Hongxin Guan
- Key Laboratory of Microbial Pathogenesis and Interventions–Fujian Province University, The Key Laboratory of Innate Immune Biology of Fujian Province, Biomedical Research Center of South China, Key Laboratory of OptoElectronic Science and Technology for Medicine of the Ministry of Education, College of Life Sciences, Fujian Normal University, Fuzhou, China
| | - Tao-Tao Chen
- Key Laboratory of Microbial Pathogenesis and Interventions–Fujian Province University, The Key Laboratory of Innate Immune Biology of Fujian Province, Biomedical Research Center of South China, Key Laboratory of OptoElectronic Science and Technology for Medicine of the Ministry of Education, College of Life Sciences, Fujian Normal University, Fuzhou, China
| | - Yan Teng
- State Key Laboratory of Mariculture Breeding, Key Laboratory of Marine Biotechnology of Fujian Province, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zuyun Wei
- State Key Laboratory of Mariculture Breeding, Key Laboratory of Marine Biotechnology of Fujian Province, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Zekai Li
- Key Laboratory of Microbial Pathogenesis and Interventions–Fujian Province University, The Key Laboratory of Innate Immune Biology of Fujian Province, Biomedical Research Center of South China, Key Laboratory of OptoElectronic Science and Technology for Medicine of the Ministry of Education, College of Life Sciences, Fujian Normal University, Fuzhou, China
| | - Songying Ouyang
- Key Laboratory of Microbial Pathogenesis and Interventions–Fujian Province University, The Key Laboratory of Innate Immune Biology of Fujian Province, Biomedical Research Center of South China, Key Laboratory of OptoElectronic Science and Technology for Medicine of the Ministry of Education, College of Life Sciences, Fujian Normal University, Fuzhou, China
| | - Xinhua Chen
- State Key Laboratory of Mariculture Breeding, Key Laboratory of Marine Biotechnology of Fujian Province, College of Marine Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
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29
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Suyapoh W, Keawchana N, Sornying P, Tangkawattana S, Khirilak P, Jantrakajorn S. Mixed Eimeria and Cryptosporidium infection and its effects on pathology and clinical outcomes in juvenile Asian seabass (Lates calcarifer) cultured in Thailand. J Fish Dis 2024; 47:e13914. [PMID: 38185743 DOI: 10.1111/jfd.13914] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 12/17/2023] [Accepted: 12/23/2023] [Indexed: 01/09/2024]
Abstract
Coccidiosis is an important disease in juvenile fish because of severe intestinal injury during infection. We first reported the mixed infection of intestinal coccidia and its association with health status and pathological findings in juvenile Asian seabass (Lates calcarifer) cultured in Thailand. Two groups of Asian seabass, 60-day fish and 90-day fish, were sampled to investigate prevalence and coccidian infection intensity using morphological characterization and PCR. Phylogenetic analysis of 18S rRNA gene amplified from the intestines revealed Eimeria sp. and Cryptosporidium sp. infection. The prevalence of Eimeria sp. and Cryptosporidium sp. in sampled fish was 100%. Clinical outcomes assessed, using health assessment index (HAI) scoring and semi-quantitative grading of intestinal lesions and inflammation, demonstrated that all fish developed variety of pathology and clinical illness; however, infection intensity in 60-day fish was significantly higher (p < .05) than 90-day fish. The HAI score of 60-day fish was poorer than 90-day fish, which correlated to a high infection intensity (r = .397), analysed by Pearson correlation coefficient. Overproduction of intestinal oxidants contributing to mucosal injury was examined by nitrotyrosine expression. The high production of reactive nitrogen species indicated severe inflammatory response, and intestinal injuries occurred mainly in the 60-day fish.
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Affiliation(s)
- Watcharapol Suyapoh
- Faculty of Veterinary Science, Prince of Songkla University, Songkhla, Thailand
- WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Tropical Disease Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Narissara Keawchana
- Faculty of Veterinary Science, Prince of Songkla University, Songkhla, Thailand
| | - Peerapon Sornying
- Faculty of Veterinary Science, Prince of Songkla University, Songkhla, Thailand
| | - Sirikachorn Tangkawattana
- WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Tropical Disease Research Center, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
- Faculty of Veterinary Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Pokphon Khirilak
- Forensic Medicine and Toxicology Unit, Pathology Department, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
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30
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Kwan GT, Andrade LR, Prime KJ, Tresguerres M. Immunohistochemical and ultrastructural characterization of the inner ear epithelial cells of splitnose rockfish ( Sebastes diploproa). Am J Physiol Regul Integr Comp Physiol 2024; 326:R277-R296. [PMID: 38189166 DOI: 10.1152/ajpregu.00223.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 12/01/2023] [Accepted: 01/01/2024] [Indexed: 01/09/2024]
Abstract
The inner ear of teleost fish regulates the ionic and acid-base chemistry and secretes protein matrix into the endolymph to facilitate otolith biomineralization, which is used to maintain vestibular and auditory functions. The otolith is biomineralized in a concentric ring pattern corresponding to seasonal growth, and this calcium carbonate (CaCO3) polycrystal has become a vital aging and life-history tool for fishery managers, ecologists, and conservation biologists. Moreover, biomineralization patterns are sensitive to environmental variability including climate change, thereby threatening the accuracy and relevance of otolith-reliant toolkits. However, the cellular biology of the inner ear is poorly characterized, which is a hurdle for a mechanistic understanding of the underlying processes. This study provides a systematic characterization of the cell types in the inner ear of splitnose rockfish (Sebastes diploproa). Scanning electron microscopy revealed the apical morphologies of six inner ear cell types. In addition, immunostaining and confocal microscopy characterized the expression and subcellular localization of the proteins Na+-K+-ATPase, carbonic anhydrase, V-type H+-ATPase, Na+-K+-2Cl--cotransporter, otolith matrix protein 1, and otolin-1 in six inner ear cell types bordering the endolymph. This fundamental cytological characterization of the rockfish inner ear epithelium illustrates the intricate physiological processes involved in otolith biomineralization and highlights how greater mechanistic understanding is necessary to predict their multistressor responses to future climate change.
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Affiliation(s)
- Garfield T Kwan
- Wildlife, Fish and Conservation Biology, University of California Davis, Davis, California, United States
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, United States
| | - Leonardo R Andrade
- Waitt Advanced Biophotonics Center, Salk Institute for Biological Studies, La Jolla, California, United States
| | - Kaelan J Prime
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, United States
| | - Martin Tresguerres
- Scripps Institution of Oceanography, University of California San Diego, La Jolla, California, United States
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31
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Wentz MR. Rainbow Trout # 5, Brook Trout # 2, Rockfish # 5, Walley # 5 by Bonnie Murray. Mayo Clin Proc 2024; 99:683-684. [PMID: 38569817 DOI: 10.1016/j.mayocp.2024.02.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 02/20/2024] [Indexed: 04/05/2024]
Abstract
Art is integrated into the Mayo Clinic environment. Since the original Mayo Clinic Building was finished in 1914, many pieces have been donated or commissioned for patients and staff to enjoy. Each issue of Mayo Clinic Proceedings features a work of art (as interpreted by the author) that is displayed in a building or on the grounds of Mayo Clinic campuses.
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32
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Gerlai R. Magic mushroom and zebrafish: A new recipe? Lab Anim (NY) 2024; 53:91-92. [PMID: 38467873 DOI: 10.1038/s41684-024-01350-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Affiliation(s)
- Robert Gerlai
- University of Toronto Mississauga, Mississauga, ON, Canada.
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Mitchell LJ, Phelan A, Cortesi F, Marshall NJ, Chung WS, Osorio DC, Cheney KL. Ultraviolet vision in anemonefish improves colour discrimination. J Exp Biol 2024; 227:jeb247425. [PMID: 38586934 DOI: 10.1242/jeb.247425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 02/19/2024] [Indexed: 04/09/2024]
Abstract
In many animals, ultraviolet (UV) vision guides navigation, foraging, and communication, but few studies have addressed the contribution of UV signals to colour vision, or measured UV discrimination thresholds using behavioural experiments. Here, we tested UV colour vision in an anemonefish (Amphiprion ocellaris) using a five-channel (RGB-V-UV) LED display. We first determined that the maximal sensitivity of the A. ocellaris UV cone was ∼386 nm using microspectrophotometry. Three additional cone spectral sensitivities had maxima at ∼497, 515 and ∼535 nm. We then behaviourally measured colour discrimination thresholds by training anemonefish to distinguish a coloured target pixel from grey distractor pixels of varying intensity. Thresholds were calculated for nine sets of colours with and without UV signals. Using a tetrachromatic vision model, we found that anemonefish were better (i.e. discrimination thresholds were lower) at discriminating colours when target pixels had higher UV chromatic contrast. These colours caused a greater stimulation of the UV cone relative to other cone types. These findings imply that a UV component of colour signals and cues improves their detectability, which likely increases the prominence of anemonefish body patterns for communication and the silhouette of zooplankton prey.
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Affiliation(s)
- Laurie J Mitchell
- School of the Environment, The University of Queensland, Brisbane, QLD 4072, Australia
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
- Marine Eco-Evo-Devo Unit, Okinawa Institute of Science and Technology, Onna son, Okinawa 904-0495, Japan
| | - Amelia Phelan
- School of the Environment, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Fabio Cortesi
- School of the Environment, The University of Queensland, Brisbane, QLD 4072, Australia
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - N Justin Marshall
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Wen-Sung Chung
- Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Daniel C Osorio
- School of Life Sciences, University of Sussex, Brighton BN1 9QG, UK
| | - Karen L Cheney
- School of the Environment, The University of Queensland, Brisbane, QLD 4072, Australia
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Ellis JR, Rumney P, Cogan S. Occurrence of tripletail Lobotes surinamensis (Bloch, 1790) in the inner Bristol Channel, UK. J Fish Biol 2024; 104:1251-1254. [PMID: 38019369 DOI: 10.1111/jfb.15634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 11/27/2023] [Indexed: 11/30/2023]
Abstract
A specimen of tripletail Lobotes surinamensis (total length: 402 mm, total mass: 1262 g) was caught in the shallow waters of the inner Bristol Channel on September 2, 2019, with this only the second known capture of this species from the British Isles. Given the cosmopolitan distribution of this species, the potential origin of this specimen is uncertain.
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Affiliation(s)
- Jim R Ellis
- Centre for Environment, Fisheries and Aquaculture Science (CEFAS), Suffolk, UK
| | - Paul Rumney
- Centre for Environment, Fisheries and Aquaculture Science (CEFAS), Suffolk, UK
| | - Stephanie Cogan
- Centre for Environment, Fisheries and Aquaculture Science (CEFAS), Suffolk, UK
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35
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Malik S, Muzaffar SB. Determination of potentially toxic elements bioaccumulated in the commercially important pelagic fish narrow-barred Spanish mackerel (Scomberomorus commerson). Mar Pollut Bull 2024; 201:116281. [PMID: 38520998 DOI: 10.1016/j.marpolbul.2024.116281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 03/15/2024] [Accepted: 03/18/2024] [Indexed: 03/25/2024]
Abstract
Anthropogenic activities have increased the discharge of marine contaminants threatening marine life. Small gulfs, such as the Arabian Gulf, are vulnerable to accumulating potentially toxic elements in marine species due to slow water exchange. The concentration of 21 elements was determined in the tissues of Scomberomorus commerson from Umm Al Quwain (United Arab Emirates) and Bandar Abbas (Iran). Chromium, Copper, and Iron exceeded internationally established maximum permissible limits. Sites could not be distinguished based on Principle Component Analyses of elements. Elevated Cu and Cr in muscle are of concern to marine species as well as humans. Metal Pollution Index showed a significant difference between sites, with 20.34 % and 100 % of individuals suffering high metal toxicity and poor body conditions, respectively. The Arabian Gulf is experiencing an increase in discharge of industrial wastes. Implementation of strict policies to reduce discharge of toxic substances is required to protect marine organisms and humans.
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Affiliation(s)
- Shaima Malik
- Department of Biology, United Arab Emirates University, Al Ain, United Arab Emirates
| | - Sabir Bin Muzaffar
- Department of Biology, United Arab Emirates University, Al Ain, United Arab Emirates.
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36
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Kennedy J, Gunnarsson Á, Pampoulie C, Wienerroither R. Nesting behavior of greater eelpout (Lycodes esmarkii), identified through a predation event by spotted wolffish (Anarhichas minor). J Fish Biol 2024; 104:1247-1250. [PMID: 38193598 DOI: 10.1111/jfb.15648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 11/27/2023] [Accepted: 12/13/2023] [Indexed: 01/10/2024]
Abstract
The stomach of a spotted wolffish (Anarhichas minor) caught in Icelandic waters was found to contain ~727 greater eelpout larvae (Lycodes esmarkii). All the larvae were of similar size and at a similar state of digestion, indicating they were all consumed together. The likely explanation for this observation is that greater eelpout lay their eggs in a nest, with the larvae remaining in the nest for a short period after hatching. The larvae were then predated upon by the spotted wolffish while still in the nest. This study sheds new light on greater eelpout in Icelandic waters, with recently hatched larvae being present in March, breeding at a depth of ~200-250 m, and likely exhibiting nesting behavior, which has not previously been documented.
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Affiliation(s)
- James Kennedy
- Marine and Freshwater Research Institute, Ísafjörður, Iceland
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37
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Tian F, Gu X, Li Y, Cai L. Evaluating the effects of graphene nanoparticles combined radio-frequency thawing on the physicochemical quality and protein conformation in hairtail (Trichiurus lepturus) dorsal muscle. J Sci Food Agric 2024; 104:2809-2819. [PMID: 38009613 DOI: 10.1002/jsfa.13169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Revised: 11/19/2023] [Accepted: 11/23/2023] [Indexed: 11/29/2023]
Abstract
BACKGROUND The thawing process is an essential step for a frozen marine fish. The present study aimed to investigate the effects of graphene magnetic nanoparticles combined radio-frequency thawing methods on frozen hairtail (Trichiurus lepturus) dorsal muscle. Seven thawing methods were used: air thawing, 4 °C cold storage thawing, water thawing, radio-frequency thawing (RT), radio frequency thawing combined with graphene nanoparticles (G-RT), radio frequency thawing combined with graphene oxide nanoparticles (GO-RT) and radio-frequency thawing combined with graphene magnetic nanoparticles (GM-RT). The thawing loss and centrifugal loss, electric conductivity, total volatile basic nitrogen, thiobarbituric acid reactive substances and color of thawed hairtail dorsal muscle were determined. The carbonyl content, total sulfhydryl groups, Ca2+ -ATPase activity, raman spectroscopy measurements and Fourier-transform infrared spectrometry measurements were determined using myofibrillar extracted from the dorsal muscle of hairtail. The water distribution was determined using low-field NMR techniques. RESULTS The results demonstrated that the RT, G-RT, GO-RT and GM-RT could significantly shorten the thawing time. Moreover, GO-RT and GM-RT efficiently preserved the color of fish dorsal muscle and reduced the impact of thawing on fish quality by reducing lipid and protein oxidation. Meanwhile, the myofibrillar protein structure thawed by GO-RT and GM-RT were more stable and had a more stable secondary structure, which maintained strong systemic stability at the same time as slowing down protein oxidation. CONCLUSION The results showed that GO-RT and GM-RT can significantly improve the thawing efficiency at the same time as effectively maintaining and improving the color and texture of thawed fish, slowing down the oxidation of proteins and lipids, and maintaining a good quality of thawed fish meat. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Fang Tian
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, College of Food Science and Pharmaceutics, Zhejiang Ocean University, Zhoushan, China
| | - Xiaohan Gu
- Key Laboratory of Health Risk Factors for Seafood of Zhejiang Province, College of Food Science and Pharmaceutics, Zhejiang Ocean University, Zhoushan, China
- Ningbo Innovation Center, College of Biosystems Engineering and Food Science, Zhejiang University, Ningbo, China
| | - Yujin Li
- College of Food Science and Engineering, Ocean University of China, Qingdao, China
| | - Luyun Cai
- Ningbo Innovation Center, College of Biosystems Engineering and Food Science, Zhejiang University, Ningbo, China
- College of Biological and Chemical Engineering, Zhejiang Engineering Research Center for Intelligent Marine Ranch Equipment, NingboTech University, Ningbo, China
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38
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Wang Y, Sang X, Cai Z, Zeng L, Deng W, Zhang J, Jiang Z, Wang J. Optimization of cold plasma combined treatment process and its effect on the quality of Asian sea bass (Lates calcarifer) during refrigerated storage. J Sci Food Agric 2024; 104:2750-2760. [PMID: 37994167 DOI: 10.1002/jsfa.13159] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 11/07/2023] [Accepted: 11/23/2023] [Indexed: 11/24/2023]
Abstract
BACKGROUND Cold plasma exhibits broad applicability in the realm of fish sterilization and preservation. The combination process of plasma-activated water and dielectric barrier discharge (PAW-DBD) was optimized, and its disinfection effects on bass fillets were studied. RESULTS The best conditions for disinfection of PAW-DBD were as follows. Bass fillets were soaked in PAW for 150 s, and then treated by DBD system at 160 kV for 180 s. The total viable count (TVC) reduced by 1.68 log CFU g-1 . On the 15th day of refrigerated storage, TVC of PAW-DBD group was 7.01 log CFU g-1 , while the PAW and DBD group exhibited a TVC of 7.02 and 7.01 log CFU g-1 on day 12; the TVC of the control group was 7.13 log CFU g-1 on day 6. The sensory score, water-holding capacity, and 2-thiobarbituric acid reactive substance values of the PAW-DBD group were significantly higher than those of PAW and DBD group (P < 0.05), whereas the TVC, Pseudomonas spp. count, and pH of the group were significantly lower (P < 0.05) during refrigerated storage. CONCLUSION PAW-DBD treatment can enhance the disinfection effect, maintain good quality, and extend the storage period of bass fillets. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Yuanyuan Wang
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Seafood, Hainan University, Haikou, China
| | - Xiaohan Sang
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Seafood, Hainan University, Haikou, China
| | - Zhicheng Cai
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Seafood, Hainan University, Haikou, China
| | - Lixian Zeng
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Seafood, Hainan University, Haikou, China
| | - Wentao Deng
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Seafood, Hainan University, Haikou, China
| | - Jianhao Zhang
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - Zhumao Jiang
- College of Life Sciences, Yantai University, Yantai, China
| | - Jiamei Wang
- Hainan Engineering Research Center of Aquatic Resources Efficient Utilization in South China Sea, Key Laboratory of Seafood, Hainan University, Haikou, China
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Cetinkaya T, Bildik F, Altay F, Ceylan Z. Gelatin nanofibers with black elderberry, Au nanoparticles and SnO 2 as intelligent packaging layer used for monitoring freshness of Hake fish. Food Chem 2024; 437:137843. [PMID: 37931424 DOI: 10.1016/j.foodchem.2023.137843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 10/01/2023] [Accepted: 10/23/2023] [Indexed: 11/08/2023]
Abstract
The electrospun gelatin nanofibers containing black elderberry (BE) extract, Au nanoparticles (AuNPs) and SnO2 were fabricated as intelligent packaging layer for Hake fish (Merluccius merluccius) fillets. Image analysis confirmed the formation of continuous ultrafine fibers. Differences between nanofibers were evaluated in terms of thermal stability, and chemical composition during storage. Fourier transform infrared spectrums indicated strong bonding interactions between gelatin and other compounds. Thermal analysis results showed that the addition of AuNPs contributed to the thermal stabilization of the gelatin chain. L, a, and b values of nanofibers were also measured. A rapid color change occurred after exposure to volatiles with the highest difference in L (52.29 %) of the sample containing gelatin, BE, SnO2 and AuNPs (p < 0.05). This study showed that the absorption of volatiles on nanofibers can be detected from color changes of nanofibers. The outcomes of this study can be applied for intelligent packaging layer in seafood products.
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Affiliation(s)
- Turgay Cetinkaya
- Yalova University, Armutlu Vocational School, Department of Food Processing, Armutlu 77500, Yalova, Turkiye
| | - Fatih Bildik
- Istanbul Technical University, Faculty of Chemical and Metallurgical, Department of Food Engineering, Sarıyer, 34469 Istanbul, Turkiye
| | - Filiz Altay
- Istanbul Technical University, Faculty of Chemical and Metallurgical, Department of Food Engineering, Sarıyer, 34469 Istanbul, Turkiye.
| | - Zafer Ceylan
- Bartın University, Science Faculty, Department of Molecular Biology and Genetics/Biotechnology, Bartın, Turkiye
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40
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Liu J, Zhu A, Wang X, Zhou X, Chen L. Predicting the current fishable habitat distribution of Antarctic toothfish ( Dissostichus mawsoni) and its shift in the future under climate change in the Southern Ocean. PeerJ 2024; 12:e17131. [PMID: 38563000 PMCID: PMC10984185 DOI: 10.7717/peerj.17131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Accepted: 02/27/2024] [Indexed: 04/04/2024] Open
Abstract
Global warming continues to exert unprecedented impacts on marine habitats. Species distribution models (SDMs) are proven powerful in predicting habitat distribution for marine demersal species under climate change impacts. The Antarctic toothfish, Dissostichus mawsoni (Norman 1937), an ecologically and commercially significant species, is endemic to the Southern Ocean. Utilizing occurrence records and environmental data, we developed an ensemble model that integrates various modelling techniques. This model characterizes species-environment relationships and predicts current and future fishable habitats of D. mawsoni under four climate change scenarios. Ice thickness, depth and mean water temperature were the top three important factors in affecting the distribution of D. mawsoni. The ensemble prediction suggests an overall expansion of fishable habitats, potentially due to the limited occurrence records from fishery-dependent surveys. Future projections indicate varying degrees of fishable habitat loss in large areas of the Amery Ice Shelf's eastern and western portions. Suitable fishable habitats, including the spawning grounds in the seamounts around the northern Ross Sea and the coastal waters of the Bellingshausen Sea and Amundsen Sea, were persistent under present and future environmental conditions, highlighting the importance to protect these climate refugia from anthropogenic disturbance. Though data deficiency existed in this study, our predictions can provide valuable information for designing climate-adaptive development and conservation strategies in maintaining the sustainability of this species.
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Affiliation(s)
- Jie Liu
- Planning and Sea Island Department, Shandong Marine Forecast and Hazard Mitigation Service, Qingdao, Shandong, China
| | - Ancheng Zhu
- Planning and Sea Island Department, Shandong Marine Forecast and Hazard Mitigation Service, Qingdao, Shandong, China
| | - Xitao Wang
- Planning and Sea Island Department, Shandong Marine Forecast and Hazard Mitigation Service, Qingdao, Shandong, China
| | - Xiangjun Zhou
- Planning and Sea Island Department, Shandong Marine Forecast and Hazard Mitigation Service, Qingdao, Shandong, China
| | - Lu Chen
- Planning and Sea Island Department, Shandong Marine Forecast and Hazard Mitigation Service, Qingdao, Shandong, China
- Ocean University of China, College of Marine Life Sciences, Qingdao, Shandong, China
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41
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Lazo-Andrade J, Barría P, Urzúa Á. Bioenergetic status of swordfish (Xiphias gladius) during the El Niño Southern Oscillation (ENSO) in the Southeast Pacific Ocean: An interannual scale. Sci Total Environ 2024; 918:170354. [PMID: 38307276 DOI: 10.1016/j.scitotenv.2024.170354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Revised: 01/17/2024] [Accepted: 01/20/2024] [Indexed: 02/04/2024]
Abstract
The bioenergetic status of fishes has been used to study their physiological responses to temporal changes at interannual scales. We evaluated the physiological responses of swordfish at an interannual scale from the El Niño Southern Oscillation (ENSO): warm phase "El Niño" in 2015 to the cold phase "La Niña" in 2017 and under neutral conditions as well in 2019. Herein, muscle samples from females and males were analyzed to evaluate the bioenergetic status from their biochemical constituents (L: lipids, P: proteins and G: glucose, E: total energy, and FAs: fatty acid profile), elemental composition (C: carbon, N: nitrogen, H: hydrogen), and nutritional indices (L:P, C:N, DHA/C18:1n-3, DHA/C16:0 and ω3/ω6 FAs). The physiological response of swordfish showed an interaction between the year and sex. Herein, the L and E showed similar trends, with the lowest female values found in 2015 and the highest in 2019. Contrary, males showed their highest values in 2015 and lowest in 2019. FA profile differed among years and highlighted significant differences between females and males in 2019. Although the female L:P and C:N ratios were lower in 2015 than in 2017, a decreasing trend in these ratios was found from 2017 to 2019. Moreover, DHA/C18:1n-3, DHA/C16:0 and ω3/ω6 showed higher ratios in females than males in 2019. Our results coincide with the beginning of the ENSO phases; it is therefore likely that the swordfish diet changed in response to the disturbances in environmental conditions. Furthermore, the degree of individual dietary specialization found under the neutral conditions could indicate differences in the feeding behaviors of males vs. females, which may be an adaptive strategy in this species. These findings will aid in understanding the bioenergetic status of swordfish under different climatic scenarios and the current global warming, providing relevant information for the management of this resource.
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Affiliation(s)
- Jorge Lazo-Andrade
- Programa de Magíster en Ecología Marina, Universidad Católica de la Santísima Concepción, Concepción, Chile; Centro de Investigación en Biodiversidad y Ambientes Sustentables (CIBAS), Universidad Católica de la Santísima Concepción, Concepción, Chile
| | | | - Ángel Urzúa
- Centro de Investigación en Biodiversidad y Ambientes Sustentables (CIBAS), Universidad Católica de la Santísima Concepción, Concepción, Chile; Departamento de Ecología, Facultad de Ciencias, Universidad Católica de la Santísima Concepción, Casilla 297, Concepción, Chile.
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42
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Zampetaki A, Yang Y, Löwen H, Royall CP. Dynamical order and many-body correlations in zebrafish show that three is a crowd. Nat Commun 2024; 15:2591. [PMID: 38519478 PMCID: PMC10959973 DOI: 10.1038/s41467-024-46426-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 02/27/2024] [Indexed: 03/25/2024] Open
Abstract
Zebrafish constitute a convenient laboratory-based biological system for studying collective behavior. It is possible to interpret a group of zebrafish as a system of interacting agents and to apply methods developed for the analysis of systems of active and even passive particles. Here, we consider the effect of group size. We focus on two- and many-body spatial correlations and dynamical order parameters to investigate the multistate behavior. For geometric reasons, the smallest group of fish which can exhibit this multistate behavior consisting of schooling, milling and swarming is three. We find that states exhibited by groups of three fish are similar to those of much larger groups, indicating that there is nothing more than a gradual change in weighting between the different states as the system size changes. Remarkably, when we consider small groups of fish sampled from a larger group, we find very little difference in the occupancy of the state with respect to isolated groups, nor is there much change in the spatial correlations between the fish. This indicates that fish interact predominantly with their nearest neighbors, perceiving the rest of the group as a fluctuating background. Therefore, the behavior of a crowd of fish is already apparent in groups of three fish.
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Affiliation(s)
- Alexandra Zampetaki
- Institute for Applied Physics, TU Wien, A-1040, Wien, Austria.
- Institut für Theoretische Physik: Weiche Materie, Heinrich-Heine-Universität, 40225, Düsseldorf, Germany.
| | - Yushi Yang
- HH Wills Physics Laboratory, Tyndall Avenue, Bristol, BS8 1TL, UK.
| | - Hartmut Löwen
- Institut für Theoretische Physik: Weiche Materie, Heinrich-Heine-Universität, 40225, Düsseldorf, Germany
| | - C Patrick Royall
- Gulliver, UMR CNRS 7083, ESPCI Paris, Université PSL, 75005, Paris, France.
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Coffin AB, Dale E, Molano O, Pederson A, Costa EK, Chen J. Age-related changes in the zebrafish and killifish inner ear and lateral line. Sci Rep 2024; 14:6670. [PMID: 38509148 PMCID: PMC10954678 DOI: 10.1038/s41598-024-57182-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 03/14/2024] [Indexed: 03/22/2024] Open
Abstract
Age-related hearing loss (ARHL) is a debilitating disorder for millions worldwide. While there are multiple underlying causes of ARHL, one common factor is loss of sensory hair cells. In mammals, new hair cells are not produced postnatally and do not regenerate after damage, leading to permanent hearing impairment. By contrast, fish produce hair cells throughout life and robustly regenerate these cells after toxic insult. Despite these regenerative abilities, zebrafish show features of ARHL. Here, we show that aged zebrafish of both sexes exhibited significant hair cell loss and decreased cell proliferation in all inner ear epithelia (saccule, lagena, utricle). Ears from aged zebrafish had increased expression of pro-inflammatory genes and significantly more macrophages than ears from young adult animals. Aged zebrafish also had fewer lateral line hair cells and less cell proliferation than young animals, although lateral line hair cells still robustly regenerated following damage. Unlike zebrafish, African turquoise killifish (an emerging aging model) only showed hair cell loss in the saccule of aged males, but both sexes exhibit age-related changes in the lateral line. Our work demonstrates that zebrafish exhibit key features of auditory aging, including hair cell loss and increased inflammation. Further, our finding that aged zebrafish have fewer lateral line hair cells yet retain regenerative capacity, suggests a decoupling of homeostatic hair cell addition from regeneration following acute trauma. Finally, zebrafish and killifish show species-specific strategies for lateral line homeostasis that may inform further comparative research on aging in mechanosensory systems.
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Affiliation(s)
- Allison B Coffin
- College of Arts and Sciences, Washington State University Vancouver, Vancouver, WA, 98686, USA.
- Department of Integrative Physiology and Neuroscience, Washington State University Vancouver, Vancouver, WA, 98686, USA.
| | - Emily Dale
- College of Arts and Sciences, Washington State University Vancouver, Vancouver, WA, 98686, USA
- Neuroimmunology Research, Mayo Clinic, Rochester, MN, 55902, USA
| | - Olivia Molano
- College of Arts and Sciences, Washington State University Vancouver, Vancouver, WA, 98686, USA
- Neuroscience Graduate Program, Brown University, Providence, RI, 02912, USA
| | - Alexandra Pederson
- College of Arts and Sciences, Washington State University Vancouver, Vancouver, WA, 98686, USA
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, 97239, USA
| | - Emma K Costa
- Department of Neurology and Neurological Sciences, Stanford University, Stanford, CA, 94305, USA
- Neurosciences Interdepartmental Program, Stanford University School of Medicine, Stanford, CA, 94305, USA
| | - Jingxun Chen
- Department of Genetics, Stanford University, Stanford, CA, 94305, USA
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44
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Jo TS. Larger particle size distribution of environmental RNA compared to environmental DNA: a case study targeting the mitochondrial cytochrome b gene in zebrafish (Danio rerio) using experimental aquariums. Naturwissenschaften 2024; 111:18. [PMID: 38502308 DOI: 10.1007/s00114-024-01904-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 03/07/2024] [Accepted: 03/08/2024] [Indexed: 03/21/2024]
Abstract
Environmental RNA (eRNA) analysis is conventionally expected to infer physiological information about organisms within their ecosystems, whereas environmental DNA (eDNA) analysis only infers their presence and abundance. Despite the promise of eRNA application, basic research on eRNA characteristics and dynamics is limited. The present study conducted aquarium experiments using zebrafish (Danio rerio) to estimate the particle size distribution (PSD) of eRNA in order to better understand the persistence state of eRNA particles. Rearing water samples were sequentially filtered using different pore-size filters, and the resulting size-fractioned mitochondrial cytochrome b (CytB) eDNA and eRNA data were modeled with the Weibull complementary cumulative distribution function (CCDF) to estimate the parameters characterizing the PSDs. It was revealed that the scale parameter (α) was significantly higher (i.e., the mean particle size was larger) for eRNA than eDNA, while the shape parameter (β) was not significantly different between them. This result supports the hypothesis that most eRNA particles are likely in a protected, intra-cellular state, which mitigates eRNA degradation in water. Moreover, these findings also imply the heterogeneous dispersion of eRNA relative to eDNA and suggest an efficient method of eRNA collection using a larger pore-size filter. Further studies on the characteristics and dynamics of eRNA particles should be pursued in the future.
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Affiliation(s)
- Toshiaki S Jo
- Research Fellow of Japan Society for the Promotion of Science, 5-3-1 Kojimachi, Chiyoda-Ku, Tokyo, 102-0083, Japan.
- Ryukoku Center for Biodiversity Science, 1-5, Yokotani, Oe-Cho, Seta, Otsu City, Shiga, 520-2194, Japan.
- Faculty of Advanced Science and Technology, Ryukoku University, 1-5, Yokotani, Oe-Cho, Seta, Otsu City, Shiga, 520-2194, Japan.
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Hu C, Zhang N, Hong Y, Tie R, Fan D, Lin A, Chen Y, Xiang LX, Shao JZ. Single-cell RNA sequencing unveils the hidden powers of zebrafish kidney for generating both hematopoiesis and adaptive antiviral immunity. eLife 2024; 13:RP92424. [PMID: 38497789 PMCID: PMC10948150 DOI: 10.7554/elife.92424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/19/2024] Open
Abstract
The vertebrate kidneys play two evolutionary conserved roles in waste excretion and osmoregulation. Besides, the kidney of fish is considered as a functional ortholog of mammalian bone marrow that serves as a hematopoietic hub for generating blood cell lineages and immunological responses. However, knowledge about the properties of kidney hematopoietic cells, and the functionality of the kidney in fish immune systems remains to be elucidated. To this end, our present study generated a comprehensive atlas with 59 hematopoietic stem/progenitor cell (HSPC) and immune-cells types from zebrafish kidneys via single-cell transcriptome profiling analysis. These populations included almost all known cells associated with innate and adaptive immunity, and displayed differential responses to viral infection, indicating their diverse functional roles in antiviral immunity. Remarkably, HSPCs were found to have extensive reactivities to viral infection, and the trained immunity can be effectively induced in certain HSPCs. In addition, the antigen-stimulated adaptive immunity can be fully generated in the kidney, suggesting the kidney acts as a secondary lymphoid organ. These results indicated that the fish kidney is a dual-functional entity with functionalities of both primary and secondary lymphoid organs. Our findings illustrated the unique features of fish immune systems, and highlighted the multifaced biology of kidneys in ancient vertebrates.
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Affiliation(s)
- Chongbin Hu
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
| | - Nan Zhang
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
| | - Yun Hong
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
| | - Ruxiu Tie
- Bone Marrow Transplantation Center, the First Affiliated Hospital, Zhejiang University School of MedicineHangzhouChina
| | - Dongdong Fan
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
| | - Aifu Lin
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
| | - Ye Chen
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
- Department of Genetic and Metabolic Disease, The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child HealthHangzhouChina
| | - Li-xin Xiang
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
| | - Jian-zhong Shao
- College of Life Sciences, Key Laboratory for Cell and Gene Engineering of Zhejiang Province, Zhejiang UniversityHangzhouChina
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and TechnologyQingdaoChina
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46
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Duan Z, Chen Y, Dou Y, Fan H, Wang J, Cong J, Sun H, Wang L. Plastic food? Energy compensation of zebrafish (Danio rerio) after long-term exposure to polylactic acid biomicroplastics. J Hazard Mater 2024; 466:133604. [PMID: 38280326 DOI: 10.1016/j.jhazmat.2024.133604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 01/12/2024] [Accepted: 01/21/2024] [Indexed: 01/29/2024]
Abstract
The extensive use of bio-based plastics has led to their widespread distribution in the environment. However, their long-term ecological impact on aquatic animals is not well understood. In this study, adult zebrafish (Danio rerio) were exposed to 1000 items·L-1 of either polylactic acid (PLA) or polyethylene terephthalate (PET) microplastics (MPs), for 90 days. PLA is a typical bio-based plastic, while PET is a typical petroleum-derived plastic. The abundances of PLA and PET MPs in fish intestines were 981 ± 66 and 671 ± 151 items per fish, respectively, indicating a greater amount of PLA MP residues than PET MPs. However, the inhibitory effect of PET on fish weight was 1.8 times higher than that of PLA, suggesting energy compensation in PLA-treated zebrafish. Proliferation of Lactobacillus was observed in the fish intestines of the PLA group, indicating increased utilization capacity of intestinal flora for lactic acid production during PLA degradation. Metabolomics showed that the tricarboxylic acid pathway was up-regulated in the PLA group compared with that in the PET group, providing evidence of energy compensation. However, more ingested PLA MPs caused more significant histological damage to fish intestines than PET MPs. Therefore, the ecological risks of bio-based plastics still require attention.
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Affiliation(s)
- Zhenghua Duan
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Yizhuo Chen
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Yuhang Dou
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Huiyu Fan
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Jing Wang
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Jiaoyue Cong
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin 300384, China
| | - Hongwen Sun
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China
| | - Lei Wang
- MOE Key Laboratory of Pollution Processes and Environmental Criteria/Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300350, China.
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Drouillard KG, Campbell L, Otieno D, Achiya J, Getabu A, Mwamburi J, Sitoki L, Omondi R, Shitandi A, Owuor B, Njiru J, Bullerjahn G, Mckay RM, Otiso KM, Tebbs E. Increasing mercury bioaccumulation and biomagnification rates of Nile perch (Lates niloticus L.) in Winam Gulf, Lake Victoria, Kenya. Sci Total Environ 2024; 916:170059. [PMID: 38242476 DOI: 10.1016/j.scitotenv.2024.170059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Revised: 01/05/2024] [Accepted: 01/08/2024] [Indexed: 01/21/2024]
Abstract
The Nile perch (Lates niloticus L.) commercial fishery for Lake Victoria in East Africa is an important source of revenue and employment. We focused on shifts in food web structure and total mercury (THg) bioaccumulation and biomagnification in Nile perch, and lower food web items collected from Winam Gulf (Kenya) sampled 24 years apart (1998 and 2022). Stable isotope carbon (δ13C) values were higher in all species from 2022 compared to 1998. Stable nitrogen isotope (δ15N) values in baseline organisms were lower in 2022 compared to 1998. In Nile perch, δ15N values were correlated with total length, but the δ15N-length regressions were steeper in 1998 compared to 2022 except for one large (158 cm) Nile perch from 1998 with an uncharacteristically low δ15N value. Total Hg concentrations were lower in lower trophic species from 2022 compared to 1998. However, the THg bioaccumulation rate (as a function of fish length) in Nile perch was greater in 2022 compared to 1998 resulting in 24.2 % to 42.4 % higher wet weight dorsal THg concentrations in 2022 Nile perch for market slot size (50 to 85 cm) fish. The contrasting observations of increased THg bioaccumulation with size in 2022 against decreases in the rate of trophic increase with size and lower THg concentrations of lower food web items imply reduced fish growth and potential bioenergetic stressors on Winam Gulf Nile perch. All samples except 1 large Nile perch (139 cm total length collected in 2022) had THg concentrations below the European Union trade limit (500 ng/g wet weight). However, for more vulnerable individuals (women, children and frequent fish eaters), we recommend a decrease in maximum monthly meal consumption for 55-75 cm Nile perch from 16 meals per month calculated for 1998 to a limit of 8 meals per month calculated for 2022.
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Affiliation(s)
- Ken G Drouillard
- Great Lakes Institute for Environmental Research, University of Windsor, Windsor, Ontario, Canada.
| | - Linda Campbell
- School of the Environment, Saint Mary's University, Halifax, Nova Scotia, Canada
| | - Dennis Otieno
- Kenya Marine and Fisheries Research Institute, Kisumu, Kenya
| | - James Achiya
- Kenya Marine and Fisheries Research Institute, Kisumu, Kenya
| | | | - Job Mwamburi
- Kenya Marine and Fisheries Research Institute, Kisumu, Kenya
| | | | | | | | | | - James Njiru
- Kenya Marine and Fisheries Research Institute, Kisumu, Kenya
| | - George Bullerjahn
- Biological Sciences, Bowling Green State University, Bowling Green, OH, USA
| | - R Michael Mckay
- Great Lakes Institute for Environmental Research, University of Windsor, Windsor, Ontario, Canada
| | - Kefa M Otiso
- School of Earth, Environment and Society, Bowling Green State University, Bowling Green, OH, USA
| | - Emma Tebbs
- Department of Geography, King's College London, United Kingdom
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Fei L, Ma Z, Yue A, Cui P, Qiu Y, Lyu F, Zhang J. Effect of low-voltage electrostatic field-assisted partial freezing on large yellow croaker protein properties and metabolomic analysis during storage. J Sci Food Agric 2024; 104:2359-2371. [PMID: 37985177 DOI: 10.1002/jsfa.13145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/15/2023] [Accepted: 11/21/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND Large yellow croaker is highly perishable during storage because of high protein and moisture content. The degradation of the fish is mainly attributed to microbial growth and enzyme activity, so it is important to find an efficient storage method to extend its shelf life. METHODOLOGY This study investigated the effect of a low-voltage electrostatic field combined with partial freezing treatment on the physicochemical properties of myofibrillar protein (MP) and metabolomic analysis of large yellow croaker during preservation. The samples in chilled storage (C), partial freezing storage (PF) and 6 kV/m low-voltage electrostatic field partial freezing storage (LVEF-PF) were analyzed during an 18 day storage period. RESULTS In comparison with the C and PF groups, LVEF-PF delayed the oxidation of MP by inhibiting the formation of carbonyl groups (2.25 nmol/mg pro), and maintaining higher sulfhydryl content (29.73 nmol/mg pro). Fourier transform infrared (FTIR) spectroscopy and fluorescence spectroscopy analysis also demonstrated that the LVEF-PF treatment maintained the stability of the protein structure by increasing the a-helix ratio (19.88%) and reducing the random coil ratio (17.83%). Scanning electron microscopy showed that, compared with the LVEF-PF group, there was more degeneration and aggregation of MP in the C and PF groups after 18 days' storage. The results of untargeted metabolomic analysis showed that 415 kinds of differential metabolites were identified after storage, and the difference levels of differential metabolites were least between the samples treated with LVEF-PF stored on the ninth day and the fresh samples. The main differential metabolic pathways during storage were amino acid metabolism and lipid metabolism. CONCLUSION The LVEF-PF treatment could maintain the stability of myofibrillar protein in large yellow croaker during storage. These results showed a potential application of the LVEF-PF method for aquatic product preservation. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Lifeng Fei
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China
- National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
| | - Ze Ma
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China
- National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
| | - Aodong Yue
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China
- National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
| | - Pengbo Cui
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China
- National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Yue Qiu
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China
- National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Fei Lyu
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China
- National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
| | - Jianyou Zhang
- College of Food Science and Technology, Zhejiang University of Technology, Hangzhou, China
- Key Laboratory of Marine Fishery Resources Exploitment & Utilization of Zhejiang Province, Hangzhou, China
- National R&D Branch Center for Pelagic Aquatic Products Processing (Hangzhou), Hangzhou, China
- Collaborative Innovation Center of Seafood Deep Processing, Dalian Polytechnic University, Dalian, China
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Jackman WR, Miranda Portillo LS, Cox CK, Ambrosio A, Gibert Y. Blocking endogenous retinoic acid degradation induces oral tooth formation in zebrafish. Proc Natl Acad Sci U S A 2024; 121:e2321162121. [PMID: 38446853 PMCID: PMC10945834 DOI: 10.1073/pnas.2321162121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 01/31/2024] [Indexed: 03/08/2024] Open
Abstract
According to Dollo's Law of irreversibility in evolution, a lost structure is usually considered to be unable to reappear in evolution due to the accumulation over time of mutations in the genes required for its formation. Cypriniform fish are a classic model of evolutionary loss because, while they form fully operational teeth in the ventral posterior pharynx, unlike other teleosts, they do not possess oral teeth. Paleontological data show that Cypriniforms, a clade of teleost fish that includes the zebrafish, lost their oral teeth 50 to 100 Mya. In order to attempt to reverse oral tooth loss in zebrafish, we block the degradation of endogenous levels of retinoic acid (RA) using a specific inhibitor of the Cyp26 RA degrading enzymes. We demonstrate the inhibition of endogenous RA degradation is sufficient to restore oral tooth induction as marked by the re-appearance of expression of early dental mesenchyme and epithelium genes such as dlx2b and sp7 in the oral cavity. Furthermore, we show that these exogenously induced oral tooth germs are able to be at least partly calcified. Taken together, our data show that modifications of signaling pathways can have a significant effect on the reemergence of once-lost structures leading to experimentally induced reversibility of evolutionary tooth loss in cypriniforms.
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Affiliation(s)
| | | | - Carol K. Cox
- Department of Cell and Molecular Biology, Cancer Center and Research Institute, University of Mississippi Medical Center, Jackson, MS39216
| | | | - Yann Gibert
- Department of Cell and Molecular Biology, Cancer Center and Research Institute, University of Mississippi Medical Center, Jackson, MS39216
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50
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Ni A, Fang L, Xi M, Li J, Qian Q, Wang Z, Wang X, Wang H, Yan J. Neurotoxic effects of 2-ethylhexyl diphenyl phosphate exposure on zebrafish larvae: Insight into inflammation-driven changes in early motor behavior. Sci Total Environ 2024; 915:170131. [PMID: 38246379 DOI: 10.1016/j.scitotenv.2024.170131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 01/23/2024]
Abstract
The extensive utilization and potential adverse impacts of the replacement flame-retardant 2-Ethylhexyl Diphenyl Phosphate (EHDPP) have raised concerns. Currently, there is limited knowledge regarding the developmental, neurological, and immunotoxic consequences of EHDPP exposure, as well as its potential behavioral outcomes. In this study, we undertook a comprehensive examination and characterization of the toxic effects over the EHDPP concentration range of 14-1400 nM. Our findings unveiled that EHDPP, even at an environmentally relevant concentration of 14 nM, exhibited excitatory neurotoxicity, eliciting a 13.5 % increase in the swimming speed of zebrafish larvae. This effect might be attributed to the potential influence of EHDPP on the release of neurotransmitters like serotonin and dopamine, which, in turn, mediated anxiety-like behavior in the zebrafish larvae. Conversely, sublethal dose EHDPP (1400 nM) exposure significantly suppressed the swimming vigor of zebrafish larvae, accompanied by morphological changes, abnormal behaviors, and alterations in intracerebral molecules. Transcriptomics revealed the underlying mechanism. The utilization of pathway inhibitors reshaped the inflammatory homeostasis and alleviated the toxicity induced by EHDPP exposure, anchoring the pivotal role played by the TLR4/NF-κB signaling pathway in EHDPP-induced adverse changes in zebrafish behavior and neurophysiology. This study observed the detrimental effects of EHDPP on fish sustainability at environmentally relevant concentrations, highlighting the practical significance for EHDPP risk management. Elucidating the toxic mechanisms of EHDPP will contribute to a deeper comprehension of how environmental pollutants can intricately influence human health.
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Affiliation(s)
- Anyu Ni
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Lu Fang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Miaocui Xi
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Jinyun Li
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Qiuhui Qian
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Zejun Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Xuedong Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China
| | - Huili Wang
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
| | - Jin Yan
- School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China.
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