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61,005 resultsShowing papers similar to Mitigating Dietary Microplastic Accumulation and Oxidative Stress Response in European Seabass (Dicentrarchus labrax) Juveniles Using a Natural Microencapsulated Antioxidant
ClearNatural-based solutions to mitigate dietary microplastics side effects in fish
Zebrafish reared for 6 months on diets containing microencapsulated astaxanthin and microplastics showed reduced oxidative stress and lower MP accumulation in liver compared to controls, suggesting antioxidant supplementation can mitigate the toxicological effects of dietary microplastic exposure.
Mitigation of Dietary Microplastic Accumulation and Oxidative Stress Response in Rainbow Trout (Oncorhynchus mykiss) Fry Through Dietary Supplementation of a Natural Microencapsulated Antioxidant
Researchers tested whether a microencapsulated natural antioxidant, astaxanthin, could protect rainbow trout fry from the harmful effects of dietary microplastics over a 60-day feeding trial. The antioxidant supplement reduced microplastic accumulation in fish tissues and helped counteract oxidative stress caused by the plastic particles. The findings suggest that dietary interventions could help mitigate microplastic harm in farmed fish, with potential implications for aquaculture safety.
Captivating Colors, Crucial Roles: Astaxanthin’s Antioxidant Impact on Fish Oxidative Stress and Reproductive Performance
This review examines how the antioxidant astaxanthin can protect fish from oxidative stress and improve their reproductive health in aquaculture settings. While not directly about microplastics, the research is relevant because microplastic exposure causes oxidative stress in fish, and antioxidants like astaxanthin could help mitigate that damage. Understanding these protective mechanisms may be important for maintaining the health and safety of farmed fish destined for human consumption.
Micro-algal astaxanthin ameliorates polystyrene microplastics-triggered necroptosis and inflammation by mediating mitochondrial Ca2+ homeostasis in carp’s head kidney lymphocytes (Cyprinus carpio L.)
Researchers investigated whether astaxanthin, a natural pigment from microalgae, could protect carp immune cells from damage caused by polystyrene microplastics. They found that astaxanthin reduced inflammation and cell death triggered by microplastics by helping maintain calcium balance within the cells' mitochondria. The study suggests that natural antioxidant compounds may help mitigate some of the harmful immune effects of microplastic exposure in fish.
Astaxanthin mitigates oxidative stress caused by microplastics at the expense of reduced skin pigmentation in discus fish
Researchers investigated how microplastics affect skin color in discus fish and whether the antioxidant astaxanthin could help. They found that microplastic exposure triggered oxidative stress that reduced skin pigmentation, and while astaxanthin supplementation improved coloring and antioxidant defenses, the pigment was diverted from skin coloration toward fighting oxidative damage. The study suggests that microplastic-induced stress forces fish to make trade-offs between maintaining body color and combating internal damage.
Nano-selenium ameliorates microplastics-induced injury: Histology, antioxidant capacity, immunity and intestinal microbiota of grass carp (Ctenopharyngodon idella)
Researchers tested whether nano-selenium supplements could protect grass carp from damage caused by polystyrene microplastics. They found that nano-selenium reduced the tissue damage, oxidative stress, and immune suppression caused by microplastic exposure, and helped restore healthy gut bacteria. The study suggests that dietary nano-selenium may be a practical strategy for protecting farmed fish from the harmful effects of microplastic pollution in aquatic environments.
Advances in Understanding Micro‐ and Nanoplastic Toxicity on Farmed Fish and Emerging Nutritional Interventions
This review examined the toxic effects of micro- and nanoplastics on farmed fish and explored emerging nutritional interventions to mitigate those effects. Researchers found that microplastics reduce feed utilization, cause physical abrasion, and trigger oxidative stress in fish, while certain dietary supplements show promise in enhancing fish resilience against microplastic-related toxicity.
Spirulina platensis supplementation remediates microplastics-induced growth inhibition and stress in Nile tilapia, Oreochromis niloticus
Nile tilapia fish exposed to microplastics showed reduced growth, intestinal damage, and signs of immune stress, but adding the dietary supplement Spirulina to their feed significantly reversed these harmful effects. Spirulina reduced oxidative stress and helped repair gut damage caused by microplastic exposure. While this is a fish study, it suggests that certain natural supplements might help protect against some of the biological damage caused by microplastic ingestion.
Evaluating Silymarin Extract as a Potent Antioxidant Supplement in Diazinon-Exposed Rainbow Trout: Oxidative Stress and Biochemical Parameter Analysis
This study tested whether silymarin, a natural antioxidant from milk thistle, could protect rainbow trout from liver damage caused by the pesticide diazinon. Silymarin successfully reduced oxidative stress and restored many blood markers to normal levels in the exposed fish. While not directly about microplastics, the research is relevant because microplastics in water can carry pesticides like diazinon, and understanding protective compounds could help address the combined toxic effects of these pollutants on aquatic food sources.
Astaxanthin: a powerful antioxidant used in aquaculture for coloration with aquatic animal health implications
Not relevant to microplastics — this review covers astaxanthin, a natural antioxidant pigment used in aquaculture, and its potential health benefits for farmed fish and crustaceans.
Microplastics increase mercury bioconcentration in gills and bioaccumulation in the liver, and cause oxidative stress and damage in Dicentrarchus labrax juveniles
Researchers exposed juvenile European sea bass to mercury, microplastics, and their mixture for 96 hours and found that microplastics increased mercury bioconcentration in gills and bioaccumulation in the liver. The combination of microplastics and mercury also caused greater oxidative stress and lipid damage than either contaminant alone, suggesting microplastics may amplify the toxicity of co-occurring pollutants.
Protective efficacy of dietary natural antioxidants on microplastic particles-induced histopathological lesions in African catfish (Clarias gariepinus)
Researchers tested whether dietary natural antioxidants could protect African catfish from tissue damage caused by microplastic ingestion. Fish fed microplastics alone showed significant kidney, liver, and intestinal damage including cellular necrosis and tissue fibrosis, while fish receiving lycopene, citric acid, or chlorella alongside the microplastics showed substantially reduced tissue injury. The study suggests that natural antioxidant supplementation may help mitigate the harmful effects of microplastic exposure in aquaculture species.
Adverse effects of microplastics on the growth, photosynthesis, and astaxanthin synthesis of Haematococcus pluvialis
Researchers exposed the microalga Haematococcus pluvialis to polystyrene microplastics and found that while short-term contact briefly stimulated growth, longer exposure inhibited photosynthesis, caused oxidative stress, and impaired the organism's ability to produce astaxanthin, a valuable natural antioxidant. The findings highlight how microplastic pollution could disrupt both aquatic ecosystems and the commercial production of beneficial compounds from algae.
Microplastic ingestion by Mullus surmuletus Linnaeus, 1758 fish and its potential for causing oxidative stress
About 27% of striped red mullet caught in the Mediterranean had ingested microplastics, but analysis of their livers showed no significant oxidative stress or cellular damage. The study suggests that at current environmental concentrations, microplastic ingestion by this commercially important fish species does not cause measurable acute harm to organ tissue.
Microplastic-induced oxidative stress response in turbot and potential intake by humans
Researchers examined microplastic contamination in turbot tissues and assessed the oxidative stress response caused by ingested particles. They found that microplastics accumulated most heavily in the gills and caused significant oxidative damage, particularly in the liver. The study also estimated human microplastic intake through fish consumption, highlighting a potential pathway for dietary exposure.
Bioaccumulation of additives and chemical contaminants from environmental microplastics in European seabass (Dicentrarchus labrax)
Researchers exposed European seabass to environmentally collected microplastics to study the bioaccumulation of plastic additives and chemical contaminants. They found that contaminants associated with the microplastics, including metals and organic pollutants, transferred to fish tissues over the exposure period. The study provides evidence that microplastics can act as carriers of harmful chemicals into marine organisms consumed by humans.
Bioaccumulation of chemical pollutants from environmental microplastics in European sea bass
Researchers designed a feeding experiment to determine whether chemical contaminants from environmental microplastics undergo trophic transfer to the liver of European sea bass (Dicentrarchus labrax), testing two feeding treatments with realistic microplastic concentrations to evaluate bioaccumulation risk.
The use of chitosan as an antioxidant in the feed of cultivated P. vannamei shrimp against oxidative stress induced by exposure to microplastics
Researchers tested whether adding chitosan to shrimp feed could protect farmed shrimp from oxidative stress caused by microplastic exposure. They found that chitosan supplementation helped counteract the harmful oxidative effects of microplastics on shrimp tissues. The findings suggest that natural antioxidants like chitosan could be a practical strategy for reducing microplastic-related damage in aquaculture.
Dose-dependent effects of polystyrene nanoplastics on growth, photosynthesis, and astaxanthin synthesis in Haematococcus pluvialis
Researchers exposed the microalga Haematococcus pluvialis to polystyrene nanoplastics at various concentrations and found that higher doses significantly inhibited growth and photosynthesis. Interestingly, the stressed algae produced more astaxanthin, a natural antioxidant pigment, as a defense response. The study shows that nanoplastic pollution can disrupt algal growth while triggering biochemical stress responses in aquatic organisms.
Long-term exposure to microplastics induces oxidative stress and a pro-inflammatory response in the gut of Sparus aurata Linnaeus, 1758
Researchers fed gilthead seabream a diet containing low-density polyethylene microplastics for 90 days and found progressive increases in oxidative stress biomarkers, inflammatory enzyme activity, and tissue damage in the gut. After a 30-day depuration period, most biomarker values returned toward normal levels, indicating some recovery capacity. The study demonstrates that long-term microplastic ingestion can induce sustained oxidative stress and inflammation in fish intestines.
IDENTIFYING AN OXIDATIVE STRESS RESPONSE IN ZEBRAFISH (Danio rerio) FED WITH MICROPLASTICS
Researchers fed zebrafish four different diets including commercial fish flakes, virgin pellets, and microplastics collected from two Canary Island beaches for 60 days, measuring catalase, glutathione-S-transferase, lipid peroxidation, and electron transport system activity at four time points. GST generally increased across all treatments, while CAT and ETS showed variable patterns, indicating an enzymatic stress response influenced by microplastic origin and composition.
Dietary administration of PVC and PE microplastics produces histological damage, oxidative stress and immunoregulation in European sea bass (Dicentrarchus labrax L.)
Researchers fed European sea bass diets containing PVC and polyethylene microplastics for three weeks and examined the effects on their organs and immune systems. They found significant tissue damage in the liver and intestine, along with signs of oxidative stress and altered immune function. The study suggests that even short-to-medium-term microplastic ingestion can compromise fish health, with longer exposures potentially leading to irreversible organ damage.
Microplastics induce toxic effects in fish: Bioaccumulation, hematological parameters and antioxidant responses
Researchers exposed juvenile fish to polyamide microplastics and found the particles accumulated primarily in the intestine, gills, and liver, causing reduced blood oxygen-carrying capacity, liver stress, and disrupted antioxidant defenses. These findings matter because fish are an important food source for humans, and microplastic accumulation in fish tissues could transfer these contaminants to people through their diet.
A multiple biomarker approach to understand the effects of microplastics on the health status of European seabass farmed in earthen ponds on the NE Atlantic coast
Researchers studied European seabass farmed in earthen ponds to understand how microplastic exposure relates to fish health. Using multiple biomarkers including blood chemistry, immune response, and tissue analysis, they found measurable biological changes linked to microplastic levels in the fish. The findings raise concerns about seafood quality from aquaculture systems that are exposed to environmental microplastic contamination.