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Das K, Roy K, Mráz J, Buřič M, Kouba A. Considerations for protein and amino acids in standardized reference diet for parthenogenetic marbled crayfish Procambarus virginalis model organism. Sci Rep 2024; 14:16395. [PMID: 39013879 PMCID: PMC11253003 DOI: 10.1038/s41598-024-58304-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 03/27/2024] [Indexed: 07/18/2024] Open
Abstract
The concept of a standardized reference diet (SRD) is used in laboratory model organisms to ensure nutritional control between studies and laboratories. Although models using the genetically identical, all female parthenogenetic marbled crayfish (Procambarus virginalis) are growing in popularity, research into nutrition in this species still has many knowledge gaps. To fast track the development of a SRD in terms of protein and amino acids (SRDprotein) for this species, we first analyzed the composition of its body amino acids to determine the ideal protein concept (IPC) of indispensable amino acids in wild-caught P. virginalis (which had an unusually high preponderance of leucine and arginine). Then, we strategically evaluated three common clusters of types of fish feed: (1) ornamental fish feed (SER) fortified with a naturally occurring alga (Spirulina). This type of feed was protein-high in arginine and leucine (SER + SPI) that fulfils the species' IPC for iso-protein (~ 40%), iso-phosphorus (~ 0.8%) and near iso-energetic (~ 475 kcal 100 g-1); (2) freeze-dried live feed consisting of chironomid larvae (CHI) fortified with Spirulina (CHI + SPI) that fulfils the IPC for iso-protein (~ 46%), iso-phosphorus (~ 0.7%) and near iso-energetic (~ 405 kcal 100 g-1); and (3) a commercially standardized 'starter diet' for carnivorous fish larvae (FISH) and post-larval shrimps (SHRIMP) with iso-protein (~ 56%) and iso-phosphorus (~ 1.6%). A total of six diets, embracing a diverse range of proteinaceous feeds, were used in a 100-day ad libitum feeding and growth trial. The FISH group outperformed all the other groups (p < 0.05) and our exploratory multivariate analysis revealed an ideal demand of > 44% protein (tailored to deliver high arginine 3% and leucine 4%, followed by the usual lysine > 3.5% and methionine 1.2%) but also the lowest carbohydrate level (21%). For SRDprotein, our findings show that the FISH diet is ideal and suggest the possibilities of using a CHI + SPI diet for further optimization (more economic use of protein and phosphorus).
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Affiliation(s)
- Koushik Das
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Koushik Roy
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Jan Mráz
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Miloš Buřič
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Antonín Kouba
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic.
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Das K, Roy K, Mráz J, Buřič M, Kouba A. Considerations for fatty acids in standardized reference diet for parthenogenetic marbled crayfish Procambarus virginalis model organism. Sci Rep 2024; 14:15933. [PMID: 38987279 PMCID: PMC11237046 DOI: 10.1038/s41598-024-66268-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 07/01/2024] [Indexed: 07/12/2024] Open
Abstract
Fatty acid accumulation was studied in the parthenogenetic all-female marbled crayfish Procambarus virginalis using six arbitrarily designed experimental feeds and related to individuals with glair glands (sexual maturity) after 100 days of ad libitum feeding at 21 °C, including gravid females from the wild as a reference. Fatty acids 16:0 and 18:1n-9 comprised 40% of the total amount of fatty acids and tended to up-concentrate in bodies. Shorter chain 14:0 depleted from feed to body. Across diets, there was a concomitant decrease in precursor fatty acid and increase in product fatty acid, such as reinforcements in monounsaturated fatty acid (18:1n-9), eicosanoid precursors 20:4n-6 (arachidonic acid, ARA) and 20:5n-3 (eicosapentaenoic acid, EPA) in-vivo, but not 22:6n-3 (docosahexaenoic acid, DHA) except when deficient in CHI or CHI + SPI diets. Saturation kinetics modeling (R2 0.7-0.9, p < 0.05) showed that when the ARA share is ~ 1%, the EPA share is ~ 8%, and the DHA share is ~ 2% in the food lipids, the accumulation of fatty acids in body lipids levels off. The lowest DHA in the CHI (0% glair glands) or CHI + SPI (0-3.9% glair glands) diets, and the lowest ARA in SER (0% glair glands) or SER + SPI (0-3% glair glands) diets, were synchronous with negligible sexual maturity despite a wide range of observed specific growth rates (2.77-3.60% per day), body size (0.44-0.84 g), ≤ 5% crude lipid and 40-46% crude protein feed. The FISH and SHRIMP diets (56% protein, 11-14% lipid) with the highest ARA, EPA, and DHA together seem to be the most conducive diets for sexual maturity (up to 20% of individuals with glair glands). We propose a fatty acid profile mimicking the FISH or SHRIMP diets as a starting point for designing the lipid content required in the marbled crayfish standardized reference diet.
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Affiliation(s)
- Koushik Das
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Koushik Roy
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Jan Mráz
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Miloš Buřič
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic
| | - Antonín Kouba
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25, Vodňany, Czech Republic.
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Dunn F, Paquette SE, Pennell KD, Plavicki JS, Manz KE. Metabolomic changes following GenX and PFBS exposure in developing zebrafish. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2024; 271:106908. [PMID: 38608566 PMCID: PMC11209921 DOI: 10.1016/j.aquatox.2024.106908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 03/30/2024] [Accepted: 04/02/2024] [Indexed: 04/14/2024]
Abstract
Short chain per- and polyfluoroalkyl substances (PFAS), including hexafluoropropylene oxide dimer acid (GenX) and perfluorobutane sulfonate (PFBS), are replacement chemicals for environmentally persistent, long-chain PFAS. Although GenX and PFBS have been detected in surface and ground water worldwide, few studies provide information on the metabolic alterations or risks associated with their exposures. In this study, larval zebrafish were used to investigate the toxicity of early-life exposure to GenX or PFBS. Zebrafish were chronically exposed from 4 h post-fertilization (hpf) to 6 days post-fertilization (dpf) to 150 µM GenX or 95.0 µM PFBS. Ultra-high-performance liquid chromatography paired with high-resolution mass spectrometry was used to quantify uptake of GenX and PFBS into zebrafish larvae and perform targeted and untargeted metabolomics. Our results indicate that PFBS was 20.4 % more readily absorbed into the zebrafish larvae compared to GenX. Additionally, PFBS exposure significantly altered 13 targeted metabolites and 21 metabolic pathways, while GenX exposure significantly altered 1 targeted metabolite and 17 metabolic pathways. Exposure to GenX, and to an even greater extent PFBS, resulted in a number of altered metabolic pathways in the amino acid metabolism, with other significant alterations in the carbohydrate, lipid, cofactors and vitamins, nucleotide, and xenobiotics metabolisms. Our results indicate that GenX and PFBS impact the zebrafish metabolome, with implications of global metabolic dysregulation, particularly in metabolic pathways relating to growth and development.
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Affiliation(s)
- Fiona Dunn
- School of Engineering, Brown University, 184 Hope Street, Providence, RI, 02912, United States
| | - Shannon E Paquette
- Department of Pathology and Laboratory Medicine, Brown University, 70 Ship Street, Providence, RI, 02903, United States
| | - Kurt D Pennell
- School of Engineering, Brown University, 184 Hope Street, Providence, RI, 02912, United States
| | - Jessica S Plavicki
- Department of Pathology and Laboratory Medicine, Brown University, 70 Ship Street, Providence, RI, 02903, United States.
| | - Katherine E Manz
- School of Engineering, Brown University, 184 Hope Street, Providence, RI, 02912, United States; Department of Environmental Health Sciences, University of Michigan, 1415 Washington Heights, Ann Arbor, MI, 48109, United States.
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Sree Kumar H, Wisner AS, Schiefer IT, Alviter Plata A, Zubcevic J. Chronotropic and vasoactive properties of the gut bacterial short-chain fatty acids in larval zebrafish. Physiol Genomics 2024; 56:426-435. [PMID: 38557279 DOI: 10.1152/physiolgenomics.00013.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/21/2024] [Accepted: 03/28/2024] [Indexed: 04/04/2024] Open
Abstract
Short-chain fatty acids (SCFAs) produced by the gut bacteria have been associated with cardiovascular dysfunction in humans and rodents. However, studies exploring effects of SCFAs on cardiovascular parameters in the zebrafish, an increasingly popular model in cardiovascular research, remain limited. Here, we performed fecal bacterial 16S sequencing and gas chromatography/mass spectrometry (GC-MS) to determine the composition and abundance of gut microbiota and SCFAs in adult zebrafish. Following this, the acute effects of major SCFAs on heart rate and vascular tone were measured in anesthetized zebrafish larvae using fecal concentrations of butyrate, acetate, and propionate. Finally, we investigated if coincubation with butyrate may lessen the effects of angiotensin II (ANG II) and phenylephrine (PE) on vascular tone in anesthetized zebrafish larvae. We found that the abundance in Proteobacteria, Firmicutes, and Fusobacteria phyla in the adult zebrafish resembled those reported in rodents and humans. SCFA levels with highest concentration of acetate (27.43 µM), followed by butyrate (2.19 µM) and propionate (1.65 µM) were observed in the fecal samples of adult zebrafish. Immersion in butyrate and acetate produced a ∼20% decrease in heart rate (HR), respectively, with no observed effects of propionate. Butyrate alone also produced an ∼25% decrease in the cross-sectional width of the dorsal aorta (DA) at 60 min (*P < 0.05), suggesting compensatory vasoconstriction, with no effects of either acetate or propionate. In addition, butyrate significantly alleviated the decrease in DA cross-sectional width produced by both ANG II and PE. We demonstrate the potential for zebrafish in investigation of host-microbiota interactions in cardiovascular health.NEW & NOTEWORTHY We highlight the presence of a core gut microbiota and demonstrate in vivo short-chain fatty acid production in adult zebrafish. In addition, we show cardio-beneficial vasoactive and chronotropic properties of butyrate, and chronotropic properties of acetate in anesthetized zebrafish larvae.
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Affiliation(s)
- Hemaa Sree Kumar
- Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States
- Department of Neurosciences, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States
| | - Alexander S Wisner
- Department of Medicinal and Biological Chemistry, University of Toledo College of Pharmacy and Pharmaceutical Sciences, Toledo, Ohio, United States
- Center for Drug Design and Development, University of Toledo College of Pharmacy and Pharmaceutical Sciences, Toledo, Ohio, United States
| | - Isaac T Schiefer
- Department of Medicinal and Biological Chemistry, University of Toledo College of Pharmacy and Pharmaceutical Sciences, Toledo, Ohio, United States
- Center for Drug Design and Development, University of Toledo College of Pharmacy and Pharmaceutical Sciences, Toledo, Ohio, United States
| | - Adriana Alviter Plata
- Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States
| | - Jasenka Zubcevic
- Department of Physiology and Pharmacology, University of Toledo College of Medicine and Life Sciences, Toledo, Ohio, United States
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Licitra R, Fronte B, Verri T, Marchese M, Sangiacomo C, Santorelli FM. Zebrafish Feed Intake: A Systematic Review for Standardizing Feeding Management in Laboratory Conditions. BIOLOGY 2024; 13:209. [PMID: 38666821 PMCID: PMC11047914 DOI: 10.3390/biology13040209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/28/2024]
Abstract
Zebrafish are one of the most used animal models in biological research and a cost-effective alternative to rodents. Despite this, nutritional requirements and standardized feeding protocols have not yet been established for this species. This is important to avoid nutritional effects on experimental outcomes, and especially when zebrafish models are used in preclinical studies, as many diseases have nutritional confounding factors. A key aspect of zebrafish nutrition is related to feed intake, the amount of feed ingested by each fish daily. With the goal of standardizing feeding protocols among the zebrafish community, this paper systematically reviews the available data from 73 studies on zebrafish feed intake, feeding regimes (levels), and diet composition. Great variability was observed regarding diet composition, especially regarding crude protein (mean 44.98 ± 9.87%) and lipid content (9.91 ± 5.40%). Interestingly, the gross energy levels of the zebrafish diets were similar across the reviewed studies (20.39 ± 2.10 kilojoules/g of feed). In most of the reviewed papers, fish received a predetermined quantity of feed (feed supplied). The authors fed the fish according to the voluntary intake and then calculated feed intake (FI) in only 17 papers. From a quantitative point of view, FI was higher than when a fixed quantity (pre-defined) of feed was supplied. Also, the literature showed that many biotic and abiotic factors may affect zebrafish FI. Finally, based on the FI data gathered from the literature, a new feeding protocol is proposed. In summary, a daily feeding rate of 9-10% of body weight is proposed for larvae, whereas these values are equal to 6-8% for juveniles and 5% for adults when a dry feed with a proper protein and energy content is used.
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Affiliation(s)
- Rosario Licitra
- Department of Neurobiology and Molecular Medicine, IRCCS Stella Maris Foundation, 56128 Pisa, Italy;
| | - Baldassare Fronte
- Department of Veterinary Sciences, University of Pisa, 56124 Pisa, Italy; (B.F.); (C.S.)
| | - Tiziano Verri
- Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy;
| | - Maria Marchese
- Department of Neurobiology and Molecular Medicine, IRCCS Stella Maris Foundation, 56128 Pisa, Italy;
| | - Chiara Sangiacomo
- Department of Veterinary Sciences, University of Pisa, 56124 Pisa, Italy; (B.F.); (C.S.)
| | - Filippo Maria Santorelli
- Department of Neurobiology and Molecular Medicine, IRCCS Stella Maris Foundation, 56128 Pisa, Italy;
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Smolińska K, Sobczyński J, Szopa A, Wnorowski A, Tomaszewska E, Muszyński S, Winiarska-Mieczan A, Czernecki T, Bielak A, Dobrowolska K, Smoliński K, Klebaniuk R, Dobrowolski P. Innovative high fat diet establishes a novel zebrafish model for the study of visceral obesity. Sci Rep 2024; 14:3012. [PMID: 38321127 PMCID: PMC10847117 DOI: 10.1038/s41598-024-53695-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Accepted: 02/03/2024] [Indexed: 02/08/2024] Open
Abstract
Obesity is a complex chronic condition associated with multiple health risks, including visceral obesity, which is particularly detrimental. To gain insight into the mechanisms underlying obesity and its associated pathologies, a novel zebrafish model was established using an innovative high-fat diet (HFD). The primary goal was to induce visceral obesity in zebrafish and study the associated structural changes. To achieve this, a unique HFD consisting of 40% beef fat (HFD40) was developed and supplemented with magnesium aluminometasilicate to improve stability in a high humidity environment. Feeding regimens were initiated for both juvenile (starting at 2 weeks post-fertilization, lasting 18 weeks) and adult zebrafish (3 months post-fertilization, 8 weeks feeding duration). The innovative dietary approach successfully induced visceral obesity in both juvenile and adult zebrafish. This new model provides a valuable tool to study obesity-related pathologies, metabolic syndrome, and potential therapeutic interventions. Most importantly, the low-cost and easy-to-prepare composition of HFD40 was seamlessly incorporated into the water without the need for separation, was readily absorbed by the fish and induced rapid weight gain in the zebrafish population. In conclusion, this study presents a novel HFD40 composition enriched with a high beef fat concentration (40%), which represents a significant advance in the development of an experimental zebrafish model for the study of visceral obesity and associated metabolic changes.
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Affiliation(s)
- Katarzyna Smolińska
- Chronic Wounds Laboratory, Medical University of Lublin, Chodźki St. 7, 20-093, Lublin, Poland.
| | - Jan Sobczyński
- Department of Clinical Pharmacy and Pharmaceutical Care, Medical University of Lublin, Chodźki St. 1, 20-093, Lublin, Poland
| | - Aleksandra Szopa
- Department of Clinical Pharmacy and Pharmaceutical Care, Medical University of Lublin, Chodźki St. 1, 20-093, Lublin, Poland
| | - Artur Wnorowski
- Department of Biopharmacy, Medical University of Lublin, 4A Chodźki St. 4A, 20-093, Lublin, Poland
| | - Ewa Tomaszewska
- Department of Animal Physiology, Faculty of Veterinary Medicine, University of Life Sciences in Lublin, Akademicka St. 12, 20-950, Lublin, Poland
| | - Siemowit Muszyński
- Department of Biophysics, University of Life Sciences in Lublin, Akademicka St. 13, 20-950, Lublin, Poland
| | - Anna Winiarska-Mieczan
- Institute of Animal Nutrition and Bromatology, University of Life Sciences in Lublin, Akademicka St. 13, 20-950, Lublin, Poland
| | - Tomasz Czernecki
- Department of Biotechnology, Microbiology and Human Nutrition, Dietitian Service, Faculty of Food Science and Biotechnology, University of Life Sciences in Lublin, Skromna 8, 20-704, Lublin, Poland
| | - Agata Bielak
- Institute of Animal Nutrition and Bromatology, University of Life Sciences in Lublin, Akademicka St. 13, 20-950, Lublin, Poland
| | - Katarzyna Dobrowolska
- Faculty of Biology and Biotechnology, Maria Curie Sklodowska University, Akademicka St. 19, 20-033, Lublin, Poland
| | - Kacper Smoliński
- Faculty of Biology, Warsaw University, Żwirki I Wigury St. 101, 02-089, Warsaw, Poland
| | - Renata Klebaniuk
- Institute of Animal Nutrition and Bromatology, University of Life Sciences in Lublin, Akademicka St. 13, 20-950, Lublin, Poland
| | - Piotr Dobrowolski
- Department of Functional Anatomy and Cytobiology, Maria Curie Sklodowska University, Akademicka St. 19, 20-033, Lublin, Poland.
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Green GBH, Williams MB, Brandom JL, Chehade SB, Fay CX, Morrow CD, Lawrence AL, Bej AK, Watts SA. A Bacterial-Sourced Protein Diet Induces Beneficial Shifts in the Gut Microbiome of the Zebrafish, Danio rerio. Curr Dev Nutr 2024; 8:102077. [PMID: 38357379 PMCID: PMC10865222 DOI: 10.1016/j.cdnut.2024.102077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/21/2023] [Accepted: 01/04/2024] [Indexed: 02/16/2024] Open
Abstract
Background Bacterial-sourced single-cell proteins (SCPs) offer an alternative protein source for diet formulation for Zebrafish (Danio rerio) and other aquaculture models. In addition, the use of a single-cell bacterial protein source derived from multiple species provides a unique insight into the interplay among nutrients in the diet, microbial populations in the diet, and the gut microbiome in D. rerio. Objective Our objective in this study was to evaluate the impact of dietary replacement of fish protein hydrolysate in a standard reference (SR) with a single-cell bacterial protein source on D. rerio gut microbiome. Methods We investigated gut microbial compositions of D. rerio fed an open-formulation standard reference (SR) diet or a bacterial-sourced protein (BP) diet, utilizing microbial taxonomic co-occurrence networks, and predicted functional profiles. Results Microbial communities in the SR diet were primarily composed of Firmicutes. In contrast, the BP diet was mainly composed of Proteobacteria. Alpha diversity revealed significant differences in microbial communities between the 2 diets, and between the guts of D. rerio fed either of the 2 diets. D. rerio fed with the SR diet resulted in abundance of Aeromonas and Vibrio. In contrast, D. rerio fed with a BP diet displayed a large abundance of members from the Rhodobacteraceae family. Taxonomic co-occurrence networks display unique microbial interactions, and key taxons in D. rerio gut samples were dependent on diet and gender. Predicted functional profiling of the microbiome across D. rerio fed SR or BP diets revealed distinct metabolic pathway differences. Female D. rerio fed the BP diet displayed significant upregulation of pathways related to primary and secondary bile acid synthesis. Male D. rerio fed the BP diet revealed similar pathway shifts and, additionally, a significant upregulation of the polyketide sugar unit biosynthesis pathway. Conclusions The use of a BP dramatically affects the composition and activity of the gut microbiome. Future investigations should further address the interplay among biological systems and diet and may offer insights into potential health benefits in preclinical and translational animal models.
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Affiliation(s)
- George BH Green
- Department of Biology, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Michael B Williams
- Department of Biology, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Jeri L. Brandom
- Department of Biology, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Sophie B Chehade
- Department of Biology, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Christian X Fay
- Department of Genetics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Casey D Morrow
- Department of Cell, Developmental and Integrative Biology, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Addison L Lawrence
- Texas A&M AgriLife Extension Agriculture and Life Sciences, TAMU College Station, TX, United States
| | - Asim K Bej
- J. Frank Barefield, Jr. Department of Criminal Justice, The University of Alabama at Birmingham, Birmingham, AL, United States
| | - Stephen A Watts
- Department of Biology, The University of Alabama at Birmingham, Birmingham, AL, United States
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Karuppasamy M, English KG, Henry CA, Manzini MC, Parant JM, Wright MA, Ruparelia AA, Currie PD, Gupta VA, Dowling JJ, Maves L, Alexander MS. Standardization of zebrafish drug testing parameters for muscle diseases. Dis Model Mech 2024; 17:dmm050339. [PMID: 38235578 PMCID: PMC10820820 DOI: 10.1242/dmm.050339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Accepted: 12/06/2023] [Indexed: 01/19/2024] Open
Abstract
Skeletal muscular diseases predominantly affect skeletal and cardiac muscle, resulting in muscle weakness, impaired respiratory function and decreased lifespan. These harmful outcomes lead to poor health-related quality of life and carry a high healthcare economic burden. The absence of promising treatments and new therapies for muscular disorders requires new methods for candidate drug identification and advancement in animal models. Consequently, the rapid screening of drug compounds in an animal model that mimics features of human muscle disease is warranted. Zebrafish are a versatile model in preclinical studies that support developmental biology and drug discovery programs for novel chemical entities and repurposing of established drugs. Due to several advantages, there is an increasing number of applications of the zebrafish model for high-throughput drug screening for human disorders and developmental studies. Consequently, standardization of key drug screening parameters, such as animal husbandry protocols, drug compound administration and outcome measures, is paramount for the continued advancement of the model and field. Here, we seek to summarize and explore critical drug treatment and drug screening parameters in the zebrafish-based modeling of human muscle diseases. Through improved standardization and harmonization of drug screening parameters and protocols, we aim to promote more effective drug discovery programs.
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Affiliation(s)
- Muthukumar Karuppasamy
- Division of Neurology, Department of Pediatrics, University of Alabama at Birmingham and Children's of Alabama, Birmingham, AL 35294, USA
| | - Katherine G. English
- Division of Neurology, Department of Pediatrics, University of Alabama at Birmingham and Children's of Alabama, Birmingham, AL 35294, USA
| | - Clarissa A. Henry
- Graduate School of Biomedical Science and Engineering, University of Maine, Orono, ME 04469, USA
- School of Biology and Ecology, University of Maine, Orono, ME 04469, USA
| | - M. Chiara Manzini
- Child Health Institute of New Jersey and Department of Neuroscience and Cell Biology, Rutgers, Robert Wood Johnson Medical School, New Brunswick, NJ 08901, USA
| | - John M. Parant
- Department of Pharmacology and Toxicology, University of Alabama at Birmingham Heersink School of Medicine, Birmingham, AL 35294, USA
| | - Melissa A. Wright
- Department of Pediatrics, Section of Child Neurology, University of Colorado at Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Avnika A. Ruparelia
- Department of Anatomy and Physiology, School of Biomedical Sciences, Faculty of Medicine Dentistry and Health Sciences, University of Melbourne, Melbourne, Victoria 3010, Australia
- Centre for Muscle Research, Department of Anatomy and Physiology, University of Melbourne, Melbourne, Victoria 3010, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria 3800, Australia
| | - Peter D. Currie
- Centre for Muscle Research, Department of Anatomy and Physiology, University of Melbourne, Melbourne, Victoria 3010, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria 3800, Australia
- EMBL Australia, Victorian Node, Monash University, Clayton, Victoria 3800, Australia
| | - Vandana A. Gupta
- Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - James J. Dowling
- Division of Neurology, The Hospital for Sick Children, Toronto, Ontario M5G 1X8, Canada
- Department of Paediatrics, University of Toronto, Toronto, Ontario M5G 1X8, Canada
- Program for Genetics and Genome Biology, The Hospital for Sick Children, Toronto, Ontario M5G 0A4, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, Ontario M5G 0A4, Canada
| | - Lisa Maves
- Center for Developmental Biology and Regenerative Medicine, Seattle Children's Research Institute, Seattle, WA 98101, USA
- Department of Pediatrics, University of Washington, Seattle, WA 98195, USA
| | - Matthew S. Alexander
- Division of Neurology, Department of Pediatrics, University of Alabama at Birmingham and Children's of Alabama, Birmingham, AL 35294, USA
- UAB Center for Exercise Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Department of Genetics, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- Civitan International Research Center, University of Alabama at Birmingham, Birmingham, AL 35294, USA
- UAB Center for Neurodegeneration and Experimental Therapeutics (CNET), Birmingham, AL 35294, USA
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Sharpton TJ, Lu Y, Kent ML, Watts SA, Varga ZM. Tenth Aquatic Models of Human Disease Conference 2022 Workshop Report: Aquatics Nutrition and Reference Diet Development. Zebrafish 2023; 20:243-249. [PMID: 38117219 PMCID: PMC10733753 DOI: 10.1089/zeb.2023.0079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023] Open
Abstract
Progress in biomedical research requires rigorous studies and reproducible outcomes. However, despite recent achievements, standard reference diets (SRDs) for aquatic model organisms, vital for supporting scientific rigor and reproducibility, are yet to be adopted. At this workshop, we presented findings from a 7-month diet test study, tightly coordinated and conducted across three aquatic research facilities: Zebrafish International Resource Center (ZIRC), Kent and Sharpton laboratories (Oregon State University), and Xiphophorus Genetic Stock Center (XGSC, Texas State University). We compared the impact of two commercial diets and a suggested zebrafish SRD on general fish husbandry, microbiome composition, and health in three fish species (zebrafish, Xiphophorus, and Medaka), and three zebrafish wild-type strains. We reported outcomes, gathered community feedback, and addressed the aquatic research community's need for SRD development. Discussions underscored the influence of diet on aquatic research variability, emphasizing the need for SRDs to control cross-experiment and cross-laboratory reproducibility. Species-specific reference diets are essential for model organism health and consistent research outcomes.
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Affiliation(s)
- Thomas J. Sharpton
- Department of Microbiology, Oregon State University, Corvallis, Oregon, USA
- Department of Statistics, Oregon State University, Corvallis, Oregon, USA
| | - Yuan Lu
- Xiphophorus Genetic Stock Center, Texas State University, San Marcos, Texas, USA
| | - Michael L. Kent
- Department of Biomedical Sciences, Oregon State University, Corvallis, Oregon, USA
| | - Stephen A. Watts
- Department of Biology, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Zoltan M. Varga
- Institute of Neuroscience, Zebrafish International Resource Center, University of Oregon, Eugene, Oregon, USA
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10
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Ma KG, Lieggi C, Lertpiriyapong K, Afolalu AA, Riedel ER, Lipman NS. Successful Rearing of Nutritionally Supplemented Rotifers ( Brachionus plicatilis) at Reduced Salinity for Zebrafish ( Danio rerio) Polyculture. Zebrafish 2023; 20:250-259. [PMID: 38117218 PMCID: PMC10733754 DOI: 10.1089/zeb.2023.0027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023] Open
Abstract
Rotifers, Brachionus plicatilis, are a valuable first exogenous feed for zebrafish because they can provide continuous nutrition for growing zebrafish larvae when used in a rotifer-zebrafish polyculture. Typically cultured at high salinities (>10 ppt), B. plicatilis are temporarily immobilized when moved to lower salinities (5 ppt) used for polycultures, decreasing their accessibility and attractiveness to the larvae. The nutritional value of rotifers varies based on their diet, typically live algae, which has limited nutritional value and may pose biosecurity risks. After confirming that rotifers consume and can reproduce when fed an irradiated, processed larval fish diet (PD), they were reared at 5 or 15 ppt, and fed various combinations of an algae mix and/or PD. Population densities and percentages of egg-bearing rotifers were quantified daily until the population density plateaued, and then their nutritional value was assessed. Results indicated that rotifers thrived at both salinities. Those fed PD were successfully maintained at >500 rotifers per mL and contained a greater ω-6/ω-3 fatty acid ratio. Our findings indicate that enriching rotifers with PD raised at 5 ppt can potentially eliminate rotifer immobilization in polyculture, while providing a nutritious, attractive diet for zebrafish larvae and decreasing biosecurity risks.
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Affiliation(s)
- Kathleen G.L. Ma
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan-Kettering Cancer Center, Weill Cornell Medicine, The Rockefeller University, New York, New York, USA
- Center of Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Christine Lieggi
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan-Kettering Cancer Center, Weill Cornell Medicine, The Rockefeller University, New York, New York, USA
- Center of Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Kvin Lertpiriyapong
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan-Kettering Cancer Center, Weill Cornell Medicine, The Rockefeller University, New York, New York, USA
- Center of Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Adedeji A. Afolalu
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan-Kettering Cancer Center, Weill Cornell Medicine, The Rockefeller University, New York, New York, USA
- Center of Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Elyn R. Riedel
- Department of Epidemiology and Biostatistics, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Neil S. Lipman
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan-Kettering Cancer Center, Weill Cornell Medicine, The Rockefeller University, New York, New York, USA
- Center of Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, New York, New York, USA
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11
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Sieler MJ, Al-Samarrie CE, Kasschau KD, Varga ZM, Kent ML, Sharpton TJ. Disentangling the link between zebrafish diet, gut microbiome succession, and Mycobacterium chelonae infection. Anim Microbiome 2023; 5:38. [PMID: 37563644 PMCID: PMC10413624 DOI: 10.1186/s42523-023-00254-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 06/21/2023] [Indexed: 08/12/2023] Open
Abstract
BACKGROUND Despite the long-established importance of zebrafish (Danio rerio) as a model organism and their increasing use in microbiome-targeted studies, relatively little is known about how husbandry practices involving diet impact the zebrafish gut microbiome. Given the microbiome's important role in mediating host physiology and the potential for diet to drive variation in microbiome composition, we sought to clarify how three different dietary formulations that are commonly used in zebrafish facilities impact the gut microbiome. We compared the composition of gut microbiomes in approximately 60 AB line adult (129- and 214-day-old) zebrafish fed each diet throughout their lifespan. RESULTS Our analysis finds that diet has a substantial impact on the composition of the gut microbiome in adult fish, and that diet also impacts the developmental variation in the gut microbiome. We further evaluated how 214-day-old fish microbiome compositions respond to exposure of a common laboratory pathogen, Mycobacterium chelonae, and whether these responses differ as a function of diet. Our analysis finds that diet determines the manner in which the zebrafish gut microbiome responds to M. chelonae exposure, especially for moderate and low abundance taxa. Moreover, histopathological analysis finds that male fish fed different diets are differentially infected by M. chelonae. CONCLUSIONS Overall, our results indicate that diet drives the successional development of the gut microbiome as well as its sensitivity to exogenous exposure. Consequently, investigators should carefully consider the role of diet in their microbiome zebrafish investigations, especially when integrating results across studies that vary by diet.
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Affiliation(s)
- Michael J Sieler
- Department of Microbiology, Oregon State University, Corvallis, OR, 97330, USA
| | | | - Kristin D Kasschau
- Department of Microbiology, Oregon State University, Corvallis, OR, 97330, USA
| | - Zoltan M Varga
- Zebrafish International Resource Center, University of Oregon, Eugene, OR, 97330, USA
| | - Michael L Kent
- Department of Microbiology, Oregon State University, Corvallis, OR, 97330, USA
- Department of Biomedical Sciences, Oregon State University, Corvallis, OR, 97330, USA
- Zebrafish International Resource Center, University of Oregon, Eugene, OR, 97330, USA
| | - Thomas J Sharpton
- Department of Microbiology, Oregon State University, Corvallis, OR, 97330, USA.
- Department of Statistics, Oregon State University, Corvallis, OR, 97330, USA.
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12
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Shi M, Gao M, Sun H, Yang W, Zhao H, Zhang L, Xu H. Exogenous 2-keto-L-gulonic Acid Supplementation as a Novel Approach to Enhancing L-ascorbic Acid Biosynthesis in Zebrafish ( Danio rerio). Animals (Basel) 2023; 13:2502. [PMID: 37570309 PMCID: PMC10417347 DOI: 10.3390/ani13152502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/23/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
L-ascorbic acid (ASA) is a micronutrient that is essential for reproduction, growth, and immunity in animals. Due to the loss of enzyme L-gulono-1,4-lactone oxidase (GLO), most aquatic animals lack the capacity for ASA biosynthesis and therefore require supplementation with exogenous ASA. Recent studies have shown that 2-keto-L-gulonic acid (2KGA), a novel potential precursor of ASA, can enhance plant growth and improve stress resistance by promoting the synthesis and accumulation of ASA. Our hypothesis is that 2-keto-L-gulonic acid (2KGA) plays a similar role in aquatic animals. To investigate this, we conducted an in vivo trial to examine the effects of exogenous 2KGA supplementation on ASA metabolism and growth of zebrafish (Danio rerio). Zebrafish were categorized into groups based on their dietary intake, including a basal diet (CK group), a basal diet supplemented with 800 mg/kg ASA (ASA group), and 800 mg/kg 2KGA-Na (2KGA group) for a duration of three weeks. The results demonstrated a significant increase in ASA content in zebrafish treated with 2KGA (34.82% increase, p < 0.05) compared to the CK group, reaching a consistent level with the ASA group (39.61% increase, p < 0.05). Furthermore, the supplementation of 2KGA significantly improved growth parameters relevant to zebrafish (specific growth rate increased by 129.04%, p < 0.05) and enhanced feed utilization (feed intake increased by 15.65%, p < 0.05). Positive correlations were observed between growth parameters, feed utilization, whole-body chemical composition, and ASA content. Our findings suggest that supplementation with exogenous 2KGA can serve as a novel approach for elevating ASA synthesis in aquatic animals, and further investigation of its underlying mechanism is required.
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Affiliation(s)
- Meijun Shi
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Mingfu Gao
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
- Modern Agricultural Science and Technology Innovation Center of Kuqa City, Kuqa 842000, China
| | - Hao Sun
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
- Modern Agricultural Science and Technology Innovation Center of Kuqa City, Kuqa 842000, China
| | - Weichao Yang
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
- Modern Agricultural Science and Technology Innovation Center of Kuqa City, Kuqa 842000, China
| | - Hongxia Zhao
- Modern Agricultural Science and Technology Innovation Center of Kuqa City, Kuqa 842000, China
| | - Lixin Zhang
- State Key Laboratory of Bioreactor Engineering and School of Biotechnology, East China University of Science and Technology, Shanghai 200237, China
| | - Hui Xu
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
- Key Laboratory of Pollution Ecology and Environmental Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
- Modern Agricultural Science and Technology Innovation Center of Kuqa City, Kuqa 842000, China
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13
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Printzi A, Koumoundouros G, Fournier V, Madec L, Zambonino-Infante JL, Mazurais D. Effect of Early Peptide Diets on Zebrafish Skeletal Development. Biomolecules 2023; 13:biom13040659. [PMID: 37189406 DOI: 10.3390/biom13040659] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 04/03/2023] [Accepted: 04/03/2023] [Indexed: 05/17/2023] Open
Abstract
Incorporation of dietary peptides has been correlated with decreased presence of skeletal abnormalities in marine larvae. In an attempt to clarify the effect of smaller protein fractions on fish larval and post-larval skeleton, we designed three isoenergetic diets with partial substitution of their protein content with 0% (C), 6% (P6) and 12% (P12) shrimp di- and tripeptides. Experimental diets were tested in zebrafish under two regimes, with inclusion (ADF-Artemia and dry feed) or lack (DF-dry feed only) of live food. Results at the end of metamorphosis highlight the beneficial effect of P12 on growth, survival and early skeletal quality when dry diets are provided from first feeding (DF). Exclusive feeding with P12 also increased the musculoskeletal resistance of the post-larval skeleton against the swimming challenge test (SCT). On the contrary, Artemia inclusion (ADF) overruled any peptide effect in total fish performance. Given the unknown species' larval nutrient requirements, a 12% dietary peptide incorporation is proposed for successful rearing without live food. A potential nutritional control of the larval and post-larval skeletal development even in aquaculture species is suggested. Limitations of the current molecular analysis are discussed to enable the future identification of the peptide-driven regulatory pathways.
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Affiliation(s)
- Alice Printzi
- Biology Department, University of Crete, 70013 Crete, Greece
- IFREMER, University of Brest, CNRS, IRD, LEMAR, F-29280 Plouzané, France
| | | | | | - Lauriane Madec
- IFREMER, University of Brest, CNRS, IRD, LEMAR, F-29280 Plouzané, France
| | | | - David Mazurais
- IFREMER, University of Brest, CNRS, IRD, LEMAR, F-29280 Plouzané, France
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14
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Sieler M, Al-Samarrie C, Kasschau K, Varga Z, Kent M, Sharpton T. Common laboratory diets differentially influence zebrafish gut microbiome's successional development and sensitivity to pathogen exposure. RESEARCH SQUARE 2023:rs.3.rs-2530939. [PMID: 36778316 PMCID: PMC9915791 DOI: 10.21203/rs.3.rs-2530939/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Background Despite the long-established importance of zebrafish (Danio rerio) as a model organism and their increasing use in microbiome-targeted studies, relatively little is known about how husbandry practices involving diet impact the zebrafish gut microbiome. Given the microbiome's important role in mediating host physiology and the potential for diet to drive variation in microbiome composition, we sought to clarify how three different dietary formulations that are commonly used in zebrafish facilities impact the gut microbiome. We compared the composition of gut microbiomes in approximately 60 AB line adult (4- and 7-month-old) zebrafish fed each diet throughout their lifespan. Results Our analysis finds that diet has a substantial impact on the composition of the gut microbiome in adult fish, and that diet also impacts the developmental variation in the gut microbiome. We further evaluated whether the 7-month-old fish microbiome compositions that result from dietary variation are differentially sensitive to infection by a common laboratory pathogen, Mycobacterium chelonae. Our analysis finds that the gut microbiome's sensitivity to M. chelonae infection varies as a function of diet, especially for moderate and low abundance taxa. Conclusions Overall, our results indicate that diet drives the successional development of the gut microbiome as well as its sensitivity to exogenous exposure. Consequently, investigators should carefully consider the role of diet in their microbiome zebrafish investigations, especially when integrating results across studies that vary by diet.
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15
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Mele S, Martelli F, Lin J, Kanca O, Christodoulou J, Bellen HJ, Piper MDW, Johnson TK. Drosophila as a diet discovery tool for treating amino acid disorders. Trends Endocrinol Metab 2023; 34:85-105. [PMID: 36567227 DOI: 10.1016/j.tem.2022.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022]
Abstract
Amino acid disorders (AADs) are a large group of rare inherited conditions that collectively impact one in 6500 live births, often resulting in rapid neurological decline and death during infancy. For several AADs, including phenylketonuria, dietary modification prevents physiological deterioration and ameliorates symptoms. Despite this remarkable potential for treatment success, dietary therapy for most AADs remains largely unexplored. Although animal models have provided novel insights into AAD mechanisms, few have been used for therapeutic diet discovery. Here, we find that of all the animal models, Drosophila is particularly well suited for nutrigenomic disease modelling, having amino acid pathways conserved with humans, exceptional genetic tractability, and the unique availability of a synthetic customisable diet.
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Affiliation(s)
- Sarah Mele
- School of Biological Sciences, Monash University, Clayton, Victoria 3800, Australia
| | - Felipe Martelli
- School of Biological Sciences, Monash University, Clayton, Victoria 3800, Australia
| | - Jiayi Lin
- School of Biological Sciences, Monash University, Clayton, Victoria 3800, Australia
| | - Oguz Kanca
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA; Duncan Neurological Research Institute of Texas Children's Hospital, Baylor College of Medicine, Houston, TX, USA
| | - John Christodoulou
- Murdoch Children's Research Institute, Parkville, Australia; Department of Paediatrics, University of Melbourne, Melbourne, Victoria 3052, Australia
| | - Hugo J Bellen
- Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX, USA; Duncan Neurological Research Institute of Texas Children's Hospital, Baylor College of Medicine, Houston, TX, USA
| | - Matthew D W Piper
- School of Biological Sciences, Monash University, Clayton, Victoria 3800, Australia.
| | - Travis K Johnson
- School of Biological Sciences, Monash University, Clayton, Victoria 3800, Australia.
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Russo C, Drewery M, Chang CT, Savage M, Sanchez L, Varga Z, Kent ML, Walter R, Lu Y. Assessment of Various Standard Fish Diets on Growth and Fecundity of Platyfish ( Xiphophorus maculatus) and Medaka ( Oryzias latipes). Zebrafish 2022; 19:181-189. [PMID: 35862011 PMCID: PMC9595639 DOI: 10.1089/zeb.2022.0004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Several small freshwater fish species are utilized as models for human conditions and disease in biomedical research. Research animal diets are generally tailored to optimize growth, fecundity, and produce healthy research animals. However, a lack of reference diets presents a barrier in comparative studies between aquatic animal models and even among laboratories using the same species. Therefore, the objective of this study was to determine feeding regime and dietary effects on growth and fecundity in two commonly used freshwater fish, platyfish and medaka. From 1 through 6 months of age, platyfish and medaka were fed one of three feeding regime/diets: (1) our custom feeding regime consists of commercial flake food, beef liver paste, and live brine shrimp (CON); (2) a commercially available zebrafish diet, Gemma (GEM); and (3) a laboratory defined reference feeding regime (WAT). Weight, size, brood numbers, and survival rates for both species were measured monthly. Numbers of platyfish fry and hatch rate of medaka embryos were also determined. We observed that custom feeding regime (CON) fed platyfish and medaka grew larger, exhibited a higher survival rate, and had higher fecundity than WAT or GEM fed fish. These observations suggest that diets and regimes designed for zebrafish are not optimal to maintain platyfish or medaka. Thus, base diets, with clearly defined components and regimes, need to be developed with compositions that can be adjusted in a species-specific manner.
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Affiliation(s)
- Crystal Russo
- Department of Agricultural Sciences and Texas State University, San Marcos, Texas, USA
| | - Merritt Drewery
- Department of Agricultural Sciences and Texas State University, San Marcos, Texas, USA
| | - Carolyn T. Chang
- Xiphophorus Genetic Stock Center, Texas State University, San Marcos, Texas, USA
| | - Markita Savage
- Xiphophorus Genetic Stock Center, Texas State University, San Marcos, Texas, USA
| | - Lindsey Sanchez
- Xiphophorus Genetic Stock Center, Texas State University, San Marcos, Texas, USA
| | - Zoltan Varga
- Zebrafish International Resource Center, University of Oregon, Eugene, Oregon, USA
| | - Michael L. Kent
- Department of Microbiology, Oregon State University, Corvallis, Oregon, USA
| | - Ronald Walter
- Xiphophorus Genetic Stock Center, Texas State University, San Marcos, Texas, USA
| | - Yuan Lu
- Xiphophorus Genetic Stock Center, Texas State University, San Marcos, Texas, USA
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