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Giri SS, Kim HJ, Jung WJ, Bin Lee S, Joo SJ, Gupta SK, Park SC. Probiotics in addressing heavy metal toxicities in fish farming: Current progress and perspective. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 282:116755. [PMID: 39053044 DOI: 10.1016/j.ecoenv.2024.116755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 07/13/2024] [Accepted: 07/16/2024] [Indexed: 07/27/2024]
Abstract
Heavy metal contamination of aquatic environments adversely affects the health of aquatic organisms and consumption of fish contaminated with heavy metals poses serious health risks to humans. Among various strategies, probiotics (living microorganisms known to have beneficial effects on the host), which have been extensively applied in the aquaculture industry, could be helpful for heavy metal detoxification and remediation. Several probiotics, including Lactobacillus strains, exhibit heavy metal binding, high heavy metal tolerance, and other beneficial characteristics for the host. Notably, numerous probiotics have been reported to bind heavy metals and excrete them from the host. Various probiotic strains (Lactobacillus, Bacillus, Lactococcus, etc.) show beneficial effects in alleviating heavy metal toxicity in cultured fish species. Certain probiotic bacteria reduce the absorption and bioavailability of heavy metals by enhancing heavy metal detoxification and sequestration while preserving gut barrier function. This review summarises the toxic effects of selected heavy metals on the health of farmed fish and discusses the role of probiotic strains in remediating the consequential exposure-induced immune toxicity and oxidative stress. Moreover, we discussed the protective strategies of probiotics against heavy metal accumulation in various tissues and gut dysbiosis in fish to alleviate heavy metal toxicity in fish farming, thereby promoting a sustainable blue economy worldwide.
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Affiliation(s)
- Sib Sankar Giri
- Laboratory of Aquatic Biomedicine, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, South Korea.
| | - Hyoun Joong Kim
- Department of Aquatic Life Medicine, College of Ocean Science and Technology, Kunsan National University, Gunsan 54150, South Korea
| | - Won Joon Jung
- Laboratory of Aquatic Biomedicine, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, South Korea
| | - Sung Bin Lee
- Laboratory of Aquatic Biomedicine, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, South Korea
| | - Su Jin Joo
- Laboratory of Aquatic Biomedicine, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, South Korea
| | - Sanjay Kumar Gupta
- ICAR, Indian Institute of Agricultural Biotechnology, Ranchi 834003, India.
| | - Se Chang Park
- Laboratory of Aquatic Biomedicine, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul 08826, South Korea.
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Uusi‐Heikkilä S, Salonen JK, Karjalainen JS, Väisänen A, Hippeläinen J, Hämärvuo T, Kuparinen A. Fish with slow life-history cope better with chronic manganese exposure than fish with fast life-history. Ecol Evol 2024; 14:e70134. [PMID: 39119176 PMCID: PMC11307103 DOI: 10.1002/ece3.70134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2024] [Accepted: 07/24/2024] [Indexed: 08/10/2024] Open
Abstract
Animals with different life-history types vary in their stress-coping styles, which can affect their fitness and survival in changing environments. We studied how chronic exposure to manganese sulfate (MnSO4), a common aquatic pollutant, affects life-history traits, physiology, and behavior of zebrafish (Danio rerio) with two life-history types: fast (previously selected for fast juvenile growth, early maturation, and small adult body size) and slow life histories (selected for slow juvenile growth, late maturation, and large adult body size). We found that MnSO4 had negative effects on growth and condition factors, but the magnitude of these effects depended on the life-history type. Individuals with fast life histories were more susceptible to MnSO4 than fish with slow life histories as they had lower growth rate, condition factor and feeding probability in high MnSO4 concentrations. Our results demonstrate that MnSO4 can impair fish performance, and life-history variation can modulate the stress-coping ability of individuals.
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Affiliation(s)
- Silva Uusi‐Heikkilä
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyvaskylaFinland
| | - Jouni K. Salonen
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyvaskylaFinland
| | - Juha S. Karjalainen
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyvaskylaFinland
| | - Ari Väisänen
- Department of ChemistryUniversity of JyväskyläJyvaskylaFinland
| | - Johanna Hippeläinen
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyvaskylaFinland
| | - Teemu Hämärvuo
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyvaskylaFinland
| | - Anna Kuparinen
- Department of Biological and Environmental ScienceUniversity of JyväskyläJyvaskylaFinland
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Zhu Q, Chen B, Zhang F, Zhang B, Guo Y, Pang M, Huang L, Wang T. Toxic and essential metals: metabolic interactions with the gut microbiota and health implications. Front Nutr 2024; 11:1448388. [PMID: 39135557 PMCID: PMC11317476 DOI: 10.3389/fnut.2024.1448388] [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: 06/13/2024] [Accepted: 07/15/2024] [Indexed: 08/15/2024] Open
Abstract
Human exposure to heavy metals, which encompasses both essential and toxic varieties, is widespread. The intestine functions as a critical organ for absorption and metabolism of heavy metals. Gut microbiota plays a crucial role in heavy metal absorption, metabolism, and related processes. Toxic heavy metals (THMs), such as arsenic (As), mercury (Hg), lead (Pb), and cadmium (Cd), can cause damage to multiple organs even at low levels of exposure, and it is crucial to emphasize their potential high toxicity. Nevertheless, certain essential trace elements, including iron (Fe), copper (Cu), and manganese (Mn), play vital roles in the biochemical and physiological functions of organisms at low concentrations but can exert toxic effects on the gut microbiota at higher levels. Some potentially essential micronutrients, such as chromium (Cr), silicon (Si), and nickel (Ni), which were considered to be intermediate in terms of their essentiality and toxicity, had different effects on the gut microbiota and their metabolites. Bidirectional relationships between heavy metals and gut microbiota have been found. Heavy metal exposure disrupts gut microbiota and influences its metabolism and physiological functions, potentially contributing to metabolic and other disorders. Furthermore, gut microbiota influences the absorption and metabolism of heavy metals by serving as a physical barrier against heavy metal absorption and modulating the pH, oxidative balance, and concentrations of detoxification enzymes or proteins involved in heavy metal metabolism. The interactions between heavy metals and gut microbiota might be positive or negative according to different valence states, concentrations, and forms of the same heavy metal. This paper reviews the metabolic interactions of 10 common heavy metals with the gut microbiota and their health implications. This collated information could provide novel insights into the disruption of the intestinal microbiota caused by heavy metals as a potential contributing factor to human diseases.
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Affiliation(s)
| | | | | | | | | | | | | | - Tianjiao Wang
- Department of Personnel Management, Zhejiang Center for Disease Control and Prevention, Hangzhou, China
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4
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Dupont MC, Martinez-Tavera E, Rodriguez-Espinosa PF, Hernandez-Ramirez AG, Guadarrama Guzmán P. Sediment analysis and water quality assessment in the Pixquiac basin: drinking water supply of Xalapa city (Veracruz, Mexico). ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:687. [PMID: 38958826 DOI: 10.1007/s10661-024-12841-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 06/15/2024] [Indexed: 07/04/2024]
Abstract
Fluvial sediment analysis and water quality assessment are useful to identify anthropic and natural sources of pollution in rivers. Currently, there is a lack of information about water quality in the Pixquiac basin (Veracruz state, Mexico), and this scarcity of data prevents authorities to take adequate measures to protect water resources. The basin is a crucial territory for Xalapa, the capital city of Veracruz state, as it gets 39% of its drinkable water from it. This research analyzed 10 physicochemical parameters and 12 metal concentrations in various rivers and sources during two seasons. Dissolved metals presented average concentrations (µg/L): Al (456.25) > Fe (199.4) > Mn (16.86) > Ba (13.8) > Zn (7.6) > Cu (1.03) > Pb (0.27) > As (0.12) > Ni (0.118) (Cd, Cr and Hg undetectable). Metals in sediment recorded average concentrations (ppm): Fe (38575) > Al (38425) > Mn (460) > Ba (206.2) > Zn (65.1) > Cr (29.8) > Ni (20.9) > Cu (16.4) > Pb (4.8) > As (2.1) (Cd and Hg undetectable). During the rainy season, Water Quality Index (WAWQI) classified stations P17 and P18's water as "unsuitable for drinking" with values of 110.4 and 117.6. Enrichment factor (EF) recorded a "moderate enrichment" of Pb in sediment in P24. Pollution was mainly explained by wastewater discharges in rivers but also because of erosion and rainfall events. Statistical analysis presented strong relationships between trace and major metals which could explain a common natural origin for metals in water and sediment: rock lixiviation.
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Affiliation(s)
- M C Dupont
- Centro Interdisciplinario de Investigaciones y Estudios Sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio La Laguna Ticomán, Del. Gustavo A. Madero, 07340, Mexico City, C.P, Mexico
| | - E Martinez-Tavera
- Universidad Popular Autónoma del Estado de Puebla (UPAEP), 21 Sur, 1103. Barrio de Santiago, 72410, Puebla, C.P, Mexico
| | - P F Rodriguez-Espinosa
- Centro Interdisciplinario de Investigaciones y Estudios Sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio La Laguna Ticomán, Del. Gustavo A. Madero, 07340, Mexico City, C.P, Mexico.
| | - A G Hernandez-Ramirez
- Centro Interdisciplinario de Investigaciones y Estudios Sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio La Laguna Ticomán, Del. Gustavo A. Madero, 07340, Mexico City, C.P, Mexico
- Prolongación de Carpio y Plan de Ayala S/N, Escuela Nacional de Ciencias Biológicas (ENCB), Instituto Politécnico Nacional (IPN), Miguel Hidalgo, Santo Tomas, 07738, Mexico City, C.P, Mexico
| | - P Guadarrama Guzmán
- Centro Interdisciplinario de Investigaciones y Estudios Sobre Medio Ambiente y Desarrollo (CIIEMAD), Instituto Politécnico Nacional (IPN), Calle 30 de Junio de 1520, Barrio La Laguna Ticomán, Del. Gustavo A. Madero, 07340, Mexico City, C.P, Mexico
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Li R, Hao Y, Shen Y, Gui L, Lv W, Yuan L, Du B, Xie L, Li J, Xu X. Impact of cadmium and diclofenac exposure on biochemical responses, transcriptome, gut microflora, and growth performance in grass carp (Ctenopharyngodonidella). CHEMOSPHERE 2024; 360:142428. [PMID: 38797211 DOI: 10.1016/j.chemosphere.2024.142428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 05/22/2024] [Accepted: 05/23/2024] [Indexed: 05/29/2024]
Abstract
In recent years, the concentrations of cadmium (Cd) and diclofenac (DCF) in water have frequently exceeded the standard; however, the toxic effects of these two pollutants on grass carp under single and combined exposure are unknown. In this study, the concentrations of pollutants in different tissues were detected, and the toxicities of the two pollutants to grass carp under different exposure conditions were compared based on growth traits, biochemical responses, gut microbiome, and transcriptomes. Based on these findings, the brain showed the lowest levels of Cd and DCF accumulation. Oxidative stress and pathological damage were observed in the brain and intestines. Changes in the structure and abundance of the gut microflora affect the synthesis of neurotransmitters, such as GABA and steroids. Differentially expressed genes in the brain were enriched in circadian rhythm functions. The expression of PER, CLOCK,1L-1β, 1L-17, and other genes are related to the abundance of Akkermansia, which indicates that the disorder of gut microflora will affect the normal circadian rhythm of the brain. All indices in the recovery group showed an increasing trend. Overall, the toxicity of Cd and DCF showed antagonism, and a single exposure had a stronger effect on gut microorganisms and circadian rhythm, which provided a scientific basis for exploring the comprehensive effects of different pollutants.
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Affiliation(s)
- Runbo Li
- Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Yinghu Hao
- Tongling Puji Sangtian Daoyu Ecological Development Co., Ltd., Anhui, China
| | - Yubang Shen
- Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Lang Gui
- Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Wenyao Lv
- Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Li Yuan
- Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Biao Du
- Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Lingli Xie
- Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Jiale Li
- Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China
| | - Xiaoyan Xu
- Key Laboratory of Freshwater Aquatic Genetic Resources Ministry of Agriculture and Rural Affairs, Shanghai Ocean University, Shanghai, China; National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai, China; Shanghai Engineering Research Center of Aquaculture, Shanghai Ocean University, Shanghai, China.
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6
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Song Y, Zhang J, Li Y, Wang Y, Wan Y. Potential Protective Effect of Selenium-Enriched Lactobacillus plantarum on Cadmium-Induced Liver Injury in Mice. J Microbiol Biotechnol 2024; 34:1328-1339. [PMID: 38754999 PMCID: PMC11239402 DOI: 10.4014/jmb.2312.12051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 03/25/2024] [Accepted: 04/05/2024] [Indexed: 05/18/2024]
Abstract
Cadmium (Cd) is a prevalent environmental contaminant that poses a potential hazard to the health of both humans and animals. In this study, biosynthesized selenium-enriched Lactobacillus plantarum and selenium nanoparticles (SeNPs) were developed and evaluated for their protective effects against Cd-induced hepatic injury in mice through oral administration for 4 weeks. Cadmium exposure resulted in severe impairment of liver function, as evidenced by increased levels of serum markers of liver injury and, oxidative stress and significant damage to liver tissue, and a notable decrease in the diversity of the intestinal microbiota. Oral administration of Se-enriched L. plantarum (LS) reduced cadmium accumulation in the liver by 49.5% and, restored other cadmium-induced damage markers to normal levels. A comparison of the effects with those of L. plantarum (L) and SeNPs isolated from LS revealed that LS could more effectively alleviate hepatic oxidative stress and reduce the intrahepatic inflammatory responses of the liver, further protecting against cadmium-induced liver injury. These findings suggest that the development of LS may be effective at protecting the liver and intestinal tract from cadmium-induced damage.
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Affiliation(s)
- Yanyan Song
- College of Biochemical Engineering, Beijing Union University, Beijing 100023, P.R. China
| | - Jing Zhang
- College of Biochemical Engineering, Beijing Union University, Beijing 100023, P.R. China
| | - Yidan Li
- College of Biochemical Engineering, Beijing Union University, Beijing 100023, P.R. China
| | - Yuxuan Wang
- College of Biochemical Engineering, Beijing Union University, Beijing 100023, P.R. China
| | - Yingxin Wan
- College of Biochemical Engineering, Beijing Union University, Beijing 100023, P.R. China
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Khoo SC, Zhang N, Luang-In V, Goh MS, Sonne C, Ma NL. Exploring environmental exposomes and the gut-brain nexus: Unveiling the impact of pesticide exposure. ENVIRONMENTAL RESEARCH 2024; 250:118441. [PMID: 38350544 DOI: 10.1016/j.envres.2024.118441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 01/20/2024] [Accepted: 02/06/2024] [Indexed: 02/15/2024]
Abstract
This review delves into the escalating concern of environmental pollutants and their profound impact on human health in the context of the modern surge in global diseases. The utilisation of chemicals in food production, which results in residues in food, has emerged as a major concern nowadays. By exploring the intricate relationship between environmental pollutants and gut microbiota, the study reveals a dynamic bidirectional interplay, as modifying microbiota profile influences metabolic pathways and subsequent brain functions. This review will first provide an overview of potential exposomes and their effect to gut health. This paper is then emphasis the connection of gut brain function by analysing microbiome markers with neurotoxicity responses. We then take pesticide as example of exposome to elucidate their influence to biomarkers biosynthesis pathways and subsequent brain functions. The interconnection between neuroendocrine and neuromodulators elements and the gut-brain axis emerges as a pivotal factor in regulating mental health and brain development. Thus, manipulation of gut microbiota function at the onset of stress may offer a potential avenue for the prevention and treatment for mental disorder and other neurodegenerative illness.
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Affiliation(s)
- Shing Ching Khoo
- Biological Security and Sustainability (BioSES) Research Interest Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Nan Zhang
- Synerk Biotech, BioBay, Suzhou, 215000, China; Neuroscience Program, Department of Neurology, Houston Methodist Research Institute, TX, 77030, USA; Department of Neurology, Weill Cornell Medicine, New York, 10065, USA
| | - Vijitra Luang-In
- Natural Antioxidant Innovation Research Unit, Department of Biotechnology, Faculty of Technology, Mahasarakham University, Khamriang, Kantharawichai, Mahasarakham, 44150, Thailand
| | - Meng Shien Goh
- Biological Security and Sustainability (BioSES) Research Interest Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia
| | - Christian Sonne
- Aarhus University, Faculty of Science and Technology, Department of Bioscience, Arctic Research Centre (ARC), Danish Centre for Environment and Energy (DCE), Frederiksborgvej 399, PO Box 358, DK-4000, Roskilde, Denmark
| | - Nyuk Ling Ma
- Biological Security and Sustainability (BioSES) Research Interest Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030, Kuala Nerus, Terengganu, Malaysia; Center for Global Health Research (CGHR), Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India.
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Che S, Huang M, Zhu L, Shen L, Ma Y, Wan Z, Li X, Zhou J, Ding S, Li X. Exposure to nanopolystyrene and phoxim at ambient concentrations causes oxidative stress and inflammation in the intestines of the Chinese mitten crab (Eriocheir sinensis). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 273:116126. [PMID: 38387141 DOI: 10.1016/j.ecoenv.2024.116126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/15/2024] [Accepted: 02/18/2024] [Indexed: 02/24/2024]
Abstract
Nanopolystyrene (NP) and phoxim (PHO) are common environmental pollutants in aquatic systems. We evaluated the toxic effects of exposure to ambient concentrations of NP and/or PHO in the intestines of the Chinese mitten crab (Eriocheir sinensis). Our study showed that histopathological changes were observed in the intestines. Specifically, NP and/or PHO exposure increased intraepithelial lymphocytes. Furthermore, NP and/or PHO exposure induced oxidative stress, as evidenced by a significant decrease in superoxide dismutase activity (SOD), peroxidase activity (POD), and total antioxidant capacity (T-AOC). Pro-inflammatory gene expression and transcriptome analysis demonstrated that NP and/or PHO exposure induced the intestinal inflammatory response. Transcriptome results showed that NP and/or PHO exposure upregulated the NF-κB signaling pathway, which is considered a key pathway in the inflammatory response. Additionally, the expression of pro-inflammatory genes significantly increased after a single exposure to NP or PHO, but it exhibited a significant decrease after the co-exposure. The downregulation of these genes in the co-exposure group likely suggested that the co-exposure mitigated intestinal inflammation response in E. sinensis. Collectively, our findings mainly showed that NP and/or PHO exposure at ambient concentrations induces oxidative stress and inflammatory response in the intestines of E. sinensis.
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Affiliation(s)
- Shunli Che
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Mengting Huang
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Lemei Zhu
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Longteng Shen
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Yuan Ma
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Zhicheng Wan
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China
| | - Xuguang Li
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing 210017, China
| | - Jun Zhou
- Freshwater Fisheries Research Institute of Jiangsu Province, Nanjing 210017, China
| | - Shuquan Ding
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China.
| | - Xilei Li
- College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China.
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Zhang Q, Xie Y, Zhang Y, Huang E, Meng L, Liu Y, Tong T. Effects of Dietary Supplementation with Chitosan on the Muscle Composition, Digestion, Lipid Metabolism, and Stress Resistance of Juvenile Tilapia ( Oreochromis niloticus) Exposed to Cadmium-Induced Stress. Animals (Basel) 2024; 14:541. [PMID: 38396509 PMCID: PMC10886040 DOI: 10.3390/ani14040541] [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: 01/17/2024] [Revised: 01/31/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024] Open
Abstract
The aim of this study was to investigate the effects of dietary chitosan supplementation on the muscle composition, digestion, lipid metabolism, and stress resistance, and their related gene expression, of juvenile tilapia (Oreochromis niloticus) subjected to cadmium (Cd2+) stress. Juvenile tilapia with an initial body weight of 21.21 ± 0.24 g were fed with a formulated feed containing five different levels (0%, 0.5%, 1.0%, 1.5%, and 2.0%) of chitosan for 60 days, while the water in all experimental groups contained a Cd2+ concentration of 0.2 mg/L. The results showed that, compared with the control group (0% chitosan), the contents of crude fat and crude protein in the muscle, the activities of lipase, trypsin, and amylase in the intestine, as well as the relative expression levels of metallothionein (mt), cytochrome P450 1A (cyp1a), carnitine palmitoyltransferase-1 (cpt-1), peroxisome proliferator-activated receptor alpha (pparα), peroxisome proliferator-activated receptor gamma (pparγ), hormone-sensitive lipase (hsl), lipoprotein lipase (lpl), malate dehydrogenase (mdh), leptin (lep), fatty acid synthase (fas), sterol regulatory element-binding protein 1 (srebp1), and stearoyl-CoA desaturase (scd) genes in the liver of juveniles were significantly increased (p < 0.05). In conclusion, dietary chitosan supplementation could alleviate the effects of Cd2+ stress on the muscle composition, digestive enzymes, lipid metabolism, and stress resistance, and their related gene expression, of juvenile tilapia, and to some extent reduce the toxic effect of Cd2+ stress on tilapia.
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Affiliation(s)
- Qin Zhang
- School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning 530008, China; (Q.Z.); (Y.X.); (Y.Z.); (E.H.); (L.M.)
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Nanning 530008, China
- Guangxi Marine Microbial Resources Industrialization Engineering Technology Research Center, Nanning 530008, China
| | - Yi Xie
- School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning 530008, China; (Q.Z.); (Y.X.); (Y.Z.); (E.H.); (L.M.)
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Nanning 530008, China
- Guangxi Marine Microbial Resources Industrialization Engineering Technology Research Center, Nanning 530008, China
| | - Yuanhui Zhang
- School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning 530008, China; (Q.Z.); (Y.X.); (Y.Z.); (E.H.); (L.M.)
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Nanning 530008, China
- Guangxi Marine Microbial Resources Industrialization Engineering Technology Research Center, Nanning 530008, China
| | - Enhao Huang
- School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning 530008, China; (Q.Z.); (Y.X.); (Y.Z.); (E.H.); (L.M.)
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Nanning 530008, China
- Guangxi Marine Microbial Resources Industrialization Engineering Technology Research Center, Nanning 530008, China
| | - Liuqing Meng
- School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning 530008, China; (Q.Z.); (Y.X.); (Y.Z.); (E.H.); (L.M.)
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Nanning 530008, China
- Guangxi Marine Microbial Resources Industrialization Engineering Technology Research Center, Nanning 530008, China
| | - Yongqiang Liu
- School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning 530008, China; (Q.Z.); (Y.X.); (Y.Z.); (E.H.); (L.M.)
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Nanning 530008, China
- Guangxi Marine Microbial Resources Industrialization Engineering Technology Research Center, Nanning 530008, China
| | - Tong Tong
- School of Marine Sciences and Biotechnology, Guangxi Minzu University, Nanning 530008, China; (Q.Z.); (Y.X.); (Y.Z.); (E.H.); (L.M.)
- Guangxi Key Laboratory for Polysaccharide Materials and Modifications, Nanning 530008, China
- Guangxi Marine Microbial Resources Industrialization Engineering Technology Research Center, Nanning 530008, China
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Jiang X, Mostafa L. Modeling Cu removal from aqueous solution using sawdust based on response surface methodology. ENVIRONMENTAL MONITORING AND ASSESSMENT 2024; 196:157. [PMID: 38228806 DOI: 10.1007/s10661-024-12343-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 01/09/2024] [Indexed: 01/18/2024]
Abstract
Copper (Cu), as one of the heavy metals widely used in industrial and agricultural activities, has a fundamental role in the pollution of water resources. Therefore, removing Cu from the aqueous solutions is considered an important challenge in the purification of water resources. Thus, in this study, sawdust with a diameter of 260-600 μm was used to remove Cu from the aqueous solutions. At first, sawdust was washed using distilled water and dried at laboratory temperature. Cu absorption experiments in closed conditions were performed based on the central composite design (CCD) model and with a range of initial Cu concentrations equal to 1-25 mgl-1. The amount of changes for other variables, including pH, time, and amount of sawdust, was equal to 2-10, 5-185 (min), and 5-25 (gl-1), respectively. After the completion of each test, the remaining Cu concentration in the solution was measured using atomic absorption, and the percentage of Cu removed was determined from the difference between the initial and final concentrations. The results showed that the CCD model has a favorable ability to predict Cu removal from the aqueous solutions (R2=0.90 and RSME=3.34%). Based on the Pareto analysis, contact time, the amount of sawdust, pH, and the Cu concentration had the most significant effect on removing Cu from the solution. Contact time, amount of sawdust, and pH were directly related, and the amount of dissolved Cu was proportional to the removal of Cu from the solution. Therefore, sawdust is desirable as a natural adsorbent, and the removal efficiency of Cu from solutions with low Cu concentration is very high (94%). In this regard, it is advised to use sawdust in the process of targeting Cu and heavy metals due to its low cost and availability.
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Affiliation(s)
- Xiaoxue Jiang
- School of Political Science and Law, Tibet University, Lhasa, 850000, China.
| | - Loghman Mostafa
- Department of Medical Biochemical Analysis, College of Health Technology, Cihan University-Erbil, Erbil, Iraq
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11
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Lin H, Mao X, Wei Y, Li S, Qin J, Zhu S, Su S, He T. Metabolic pathways of methylmercury in rotifer Brachionus plicatilis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167063. [PMID: 37709075 DOI: 10.1016/j.scitotenv.2023.167063] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 09/07/2023] [Accepted: 09/11/2023] [Indexed: 09/16/2023]
Abstract
Methylmercury (MeHg) readily accumulates in aquatic organisms while transferring and amplifying in the aquatic food chains. This study firstly explores the in vivo accumulation sites and metabolic regulation of MeHg in the rotifer Brachionus plicatilis by aggregation-induced emission fluorogen (AIEgen) and metabolomics. Fluorescent image analysis by AIEgen showed that MeHg in B. plicatilis mainly occured in the ciliary corona, esophagus, mastax, stomach and intestine in the direct absorption group. In the other group, where B. plicatilis were indirectly supplied with MeHg via food intake, the accumulation of MeHg in the rotifer occurred in the ciliary corona, various digestive organs, and the pedal gland. However, the MeHg accumulated in the rotifer is difficult to metabolize outside the body. Metabolomics analysis showed that the significant enrichment of ABC transporters was induced by the direct exposure of rotifers to dissolved MeHg. In contrast, exposure of rotifers to MeHg via food intake appeared to influence carbon, galactose, alanine, aspartate and glutamate metabolisms. Besides, the disturbed biological pathways such as histidine metabolism, beta-alanine metabolism and pantothenate and CoA biosynthesis in rotifers may be associated with L-aspartic acid upregulation in the feeding group. The significant enrichment of ABC transporters and carbon metabolism in rotifers may be related to the accumulation of MeHg in the intestine of rotifers. In both pathways of MeHg exposure, the arginine biosynthesis and metabolism of rotifers were disturbed, which may support the hypothesis that rotifers produce more energy to resist MeHg toxicity. This study provides new insight into the accumulation and toxicity mechanisms of MeHg on marine invertebrates from the macro and micro perspectives.
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Affiliation(s)
- Hangyu Lin
- College of Fisheries, Southwest University, Chongqing 400715, China; Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, 400715, China
| | - Xiaodong Mao
- College of Fisheries, Southwest University, Chongqing 400715, China; Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, 400715, China
| | - Yanlin Wei
- College of Fisheries, Southwest University, Chongqing 400715, China; Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, 400715, China
| | - Songzhang Li
- College of Fisheries, Southwest University, Chongqing 400715, China; Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, 400715, China
| | - Jianguang Qin
- College of Science and Engineering, Flinders University, South Australia 5001, Australia
| | - Song Zhu
- College of Fisheries, Southwest University, Chongqing 400715, China; Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, 400715, China
| | - Shengqi Su
- College of Fisheries, Southwest University, Chongqing 400715, China; Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, 400715, China.
| | - Tao He
- College of Fisheries, Southwest University, Chongqing 400715, China; Key Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, 400715, China.
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Li Y, Zhou X, Guo W, Fu Y, Ruan G, Fang L, Wang Q. Effects of lead contamination on histology, antioxidant and intestinal microbiota responses in freshwater crayfish, Procambarus clarkii. AQUATIC TOXICOLOGY (AMSTERDAM, NETHERLANDS) 2023; 265:106768. [PMID: 38041968 DOI: 10.1016/j.aquatox.2023.106768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 09/21/2023] [Accepted: 11/12/2023] [Indexed: 12/04/2023]
Abstract
The red swamp crayfish (Procambarus clarkii) is an important farming species in China and there is a high degree of overlap between the main crayfish production areas and areas contaminated with the heavy metal lead (Pb), thus putting crayfish farming at potential risk of Pb contamination. To assess the toxic effects of Pb on crayfish, in this study they were exposed to different concentrations of Pb (0, 0.1, 1, 10, 50 mg/L) for 72 h, and 0.1 mg/L represents the level of Pb in the contaminated water. Histomorphology and activities of antioxidant or immune-related enzymes suggest that the damage of Pb to the hepatopancreas and intestine was dose- and time-dependent, with the intestine being more sensitive to Pb than the hepatopancreas. Notably, after a short period (24 h) of stress at low concentrations (0.1 mg/L) of Pb, the malondialdehyde (MDA) content and antioxidant enzymes such as catalase (CAT) and glutathione peroxidase (GSH-Px) in the intestine of crayfish showed significant changes, indicating that low concentrations of Pb were also highly detrimental to crayfish. High-throughput sequencing of the intestinal microbial community indicated that Pb exposure led to a disturbance in the relative abundance of intestinal bacteria, increasing the abundance of pathogenic bacteria (Bosea, Cloacibacterium, Legionella spp.) and decreasing the abundance of potentially beneficial bacteria (Chitinibacter, Chitinilyticum, Paracoccus, Microbacterium, Demequina, and Acinetobacter spp.). In conclusion, Pb damages the hepatopancreas and intestinal barrier of crayfish, leading to the destruction of their anti-stress ability and immune response, and at the same time disrupts the homeostasis of intestinal microbes, resulting in adverse effects on the gut. This study contributed to the assessment of the ecotoxicity of the heavy metal Pb to the crustacean aquatic animals.
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Affiliation(s)
- Yulong Li
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou 434024, China; The Innovative Center of Animal Nutrition and Feed Application Technology, Yangtze University, Jingzhou 434024, China; The Innovative Technology Research Center of Crayfish Breeding and Healthy Farming, Yangtze University, Jingzhou 434024, China
| | - Xingwang Zhou
- College of Chemistry and Chemical Engineering, Hubei Normal University, Huangshi 435002, China
| | - Wei Guo
- State Key Laboratory of Conservation and Utilization of Bio-Resources in Yunnan and Center for Life Science, School of Life Sciences, Yunnan University, Kunming 650504, China
| | - Yunyin Fu
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou 434024, China; The Innovative Center of Animal Nutrition and Feed Application Technology, Yangtze University, Jingzhou 434024, China; The Innovative Technology Research Center of Crayfish Breeding and Healthy Farming, Yangtze University, Jingzhou 434024, China
| | - Guoliang Ruan
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou 434024, China; The Innovative Center of Animal Nutrition and Feed Application Technology, Yangtze University, Jingzhou 434024, China; The Innovative Technology Research Center of Crayfish Breeding and Healthy Farming, Yangtze University, Jingzhou 434024, China
| | - Liu Fang
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou 434024, China; The Innovative Center of Animal Nutrition and Feed Application Technology, Yangtze University, Jingzhou 434024, China; The Innovative Technology Research Center of Crayfish Breeding and Healthy Farming, Yangtze University, Jingzhou 434024, China.
| | - Qian Wang
- Engineering Research Center of Ecology and Agricultural Use of Wetland, Ministry of Education, Yangtze University, Jingzhou 434024, China; The Innovative Center of Animal Nutrition and Feed Application Technology, Yangtze University, Jingzhou 434024, China; The Innovative Technology Research Center of Crayfish Breeding and Healthy Farming, Yangtze University, Jingzhou 434024, China.
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Kirichuk AA, Skalny AV, Chizhov AY, Tskhovrebov AG, Schaumlöffel D, Kritchenkov AS. Characteristic features of toxic metal content in hair samples of foreign students at RUDN University from different geographic regions. J Trace Elem Med Biol 2023; 80:127303. [PMID: 37741050 DOI: 10.1016/j.jtemb.2023.127303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 08/30/2023] [Accepted: 09/11/2023] [Indexed: 09/25/2023]
Abstract
BACKGROUND This study explores the regional variations in toxic metal accumulation among RUDN University students from various global regions. METHODS This comparative analysis examined hair samples from students hailing from different regions, including Russia, Asia, the Middle East, Africa, and Latin America. The concentrations of Aluminium (Al), Arsenic (As), Cadmium (Cd), Mercury (Hg), Lead (Pb), and Tin (Sn) were measured in the hair samples. The data was then evaluated using regression models to assess the link between the region of residence and toxic metal content in the hair. RESULTS The analysis indicated significant regional variations in the levels of toxic metals in the students' hair. The highest content of Al, Cd, and Pb was observed in students from Africa (13.542, 0.028, 0.794 µg/g) and Latin America (9.947, 0.025, 0.435 µg/g). Arsenic levels in students from all regions exceeded that of Russian students by over two-fold. No substantial group differences were found in the Sn content. The regression models suggested that residing in Asia, Africa, and Latin America was a predictor of high Hg levels in hair (0.130, 0.096, 0.227 µg/g). Living in Africa was significantly associated with higher Pb levels (0.794 µg/g), and living in Latin America was close to significantly associated with the Cd level in the hair (0.025 µg/g). CONCLUSION This study confirmed an increased accumulation of toxic metals, especially Hg, Cd, and Pb, in students primarily from Latin America and Africa. The findings highlighted the importance of understanding the regional variations in toxic metal accumulation to address associated health risks and the potential impact on students' well-being and academic performance. These insights may guide the development of targeted interventions to reduce exposure to toxic metals in students from various regions around the world.
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Affiliation(s)
- Anatoly A Kirichuk
- Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation
| | - Anatoly V Skalny
- Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation; Sechenov University, Moscow 119435, Russian Federation
| | - Aleksey Ya Chizhov
- Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation
| | - Alexander G Tskhovrebov
- Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation
| | - Dirk Schaumlöffel
- Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation; CNRS, Université de Pau et des Pays de l'Adour, E2S UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM), UMR 5254, 64000 Pau, France
| | - Andreii S Kritchenkov
- Peoples' Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russian Federation; Institute of Technical Acoustics NAS of Belarus, Ludnikova Prosp. 13, Vitebsk 210009, Republic of Belarus.
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Pedroza Matute S, Iyavoo S. Exploring the gut microbiota: lifestyle choices, disease associations, and personal genomics. Front Nutr 2023; 10:1225120. [PMID: 37867494 PMCID: PMC10585655 DOI: 10.3389/fnut.2023.1225120] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 09/19/2023] [Indexed: 10/24/2023] Open
Abstract
The gut microbiota is a rich and dynamic ecosystem that actively interacts with the human body, playing a significant role in the state of health and disease of the host. Diet, exercise, mental health, and other factors have exhibited the ability to influence the gut bacterial composition, leading to changes that can prevent and improve, or favor and worsen, both intestinal and extra-intestinal conditions. Altered gut microbial states, or 'dysbiosis', associated with conditions and diseases are often characterized by shifts in bacterial abundance and diversity, including an impaired Firmicutes to Bacteroidetes ratio. By understanding the effect of lifestyle on the gut microbiota, personalized advice can be generated to suit each individual profile and foster the adoption of lifestyle changes that can both prevent and ameliorate dysbiosis. The delivery of effective and reliable advice, however, depends not only on the available research and current understanding of the topic, but also on the methods used to assess individuals and to discover the associations, which can introduce bias at multiple stages. The aim of this review is to summarize how human gut microbial variability is defined and what lifestyle choices and diseases have shown association with gut bacterial composition. Furthermore, popular methods to investigate the human gut microbiota are outlined, with a focus on the possible bias caused by the lack of use of standardized methods. Finally, an overview of the current state of personalized advice based on gut microbiota testing is presented, underlining its power and limitations.
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Affiliation(s)
| | - Sasitaran Iyavoo
- Nkaarco Diagnostics Limited, Norwich, United Kingdom
- School of Chemistry, College of Health and Science, University of Lincoln, Lincoln, United Kingdom
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Lopes M, Silva AS, Séndon R, Barbosa-Pereira L, Cavaleiro C, Ramos F. Towards the Sustainable Exploitation of Salt-Tolerant Plants: Nutritional Characterisation, Phenolics Composition, and Potential Contaminants Analysis of Salicornia ramosissima and Sarcocornia perennis alpini. Molecules 2023; 28:molecules28062726. [PMID: 36985696 PMCID: PMC10059647 DOI: 10.3390/molecules28062726] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 03/09/2023] [Accepted: 03/14/2023] [Indexed: 03/30/2023] Open
Abstract
Increasing soil salinisation represents a serious threat to food security, and therefore the exploitation of high-yielding halophytes, such as Salicornia and Sarcocornia, needs to be considered not merely in arid regions but worldwide. In this study, Salicornia ramosissima and Sarcocornia perennis alpini were evaluated for nutrients, bioactive compounds, antioxidant capacity, and contaminants. Both were shown to be nutritionally relevant, exhibiting notable levels of crude fibre and ash, i.e., 11.26-15.34 and 39.46-40.41% dry weight (dw), respectively, and the major minerals were Na, K, and Mg. Total phenolics thereof were 67.05 and 38.20 mg of gallic acid equivalents/g extract dw, respectively, mainly p-coumaric acid and quercetin. Both species displayed antioxidant capacity, but S. ramossima was prominent in both the DPPH and ß-carotene bleaching assays. Aflatoxin B1 was detected in S. ramosissima, at 5.21 µg/Kg dw, which may pose a health threat. The Cd and Pb levels in both were low, but the 0.01 mg/Kg Hg in S. perennis alpini met the maximum legal limit established for marine species including algae. Both species exhibit high potential for use in the agro-food, cosmetics, and pharmaceutical sectors, but specific regulations and careful cultivation strategies need to be implemented, in order to minimise contamination risks by mycotoxins and heavy metals.
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Affiliation(s)
- Maria Lopes
- University of Coimbra, Faculty of Pharmacy, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- Associated Laboratory for Green Chemistry (LAQV) of the Network of Chemistry and Technology (REQUIMTE), R. D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
| | - Ana Sanches Silva
- University of Coimbra, Faculty of Pharmacy, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- National Institute for Agricultural and Veterinary Research (INIAV), I.P., Rua dos Lagidos, Lugar da Madalena, 4485-655 Vila do Conde, Portugal
- Centre for Study in Animal Science (CECA), ICETA, University of Porto, 4051-501 Porto, Portugal
| | - Raquel Séndon
- Analytical Chemistry, Nutrition and Food Science Department, Pharmacy Faculty, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Letricia Barbosa-Pereira
- Analytical Chemistry, Nutrition and Food Science Department, Pharmacy Faculty, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Carlos Cavaleiro
- University of Coimbra, Faculty of Pharmacy, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- Chemical Process Engineering and Forest Products Research Centre, University of Coimbra, Rua Sílvio Lima, Polo II, 3030-790 Coimbra, Portugal
| | - Fernando Ramos
- University of Coimbra, Faculty of Pharmacy, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
- Associated Laboratory for Green Chemistry (LAQV) of the Network of Chemistry and Technology (REQUIMTE), R. D. Manuel II, Apartado 55142, 4051-401 Porto, Portugal
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