A review of the neurobehavioural, physiological, and reproductive toxicity of microplastics in fishes

Ecotoxicology and Environmental Safety, Journal Year: 2024, Volume and Issue: 282, P. 116712 - 116712

Published: July 15, 2024

Microplastics (MPs) have emerged as widespread environmental pollutants, causing significant threats to aquatic ecosystems and organisms.This review examines the toxic effects of MPs on fishes, with a focus neurobehavioural, physiological, reproductive impacts, well underlying mechanisms toxicity.Evidence indicates that induce range neurobehavioural abnormalities in affecting social interactions cognitive functions.Altered neurotransmitter levels are identified key mechanism driving behavioural alterations following MP exposure.Physiological fishes exposed also reported, including neurotoxicity, immunotoxicity, oxidative stress.These physiological disruptions can compromise individual health organisms.Furthermore, linked exposure discussed, particular emphasis endocrine signaling pathways.These impair success fish species, impacting population numbers.Here we explore critical role mediating after MPs, focusing primarily hypothalamic-pituitary-gonadal axis.Our highlights urgent need for interdisciplinary research efforts aimed at elucidating full extent toxicity its implications ecosystems.Lastly, identify knowledge gaps future research, investigations into transgenerational if any, quantifying synergetic/antagonistic other pollutants.This expanded regarding potential risks wildlife is expected aid policymakers developing mitigation strategies protect species.

Language: Английский

---

A critical review of the adsorption-desorption characteristics of antibiotics on microplastics and their combined toxic effects

Environmental Technology & Innovation, Journal Year: 2024, Volume and Issue: 35, P. 103729 - 103729

Published: June 26, 2024

The interaction between microplastics (MPs) and pollutants is crucial for assessing the environmental risk of MPs. It necessary to pay attention adsorption/desorption behavior antibiotics on MPs due their potential role in antibiotic resistance. When MPs-loaded are ingested by organisms, they enter gastrointestinal tract undergo desorption, leading corresponding toxic effects. Existing literature primarily focuses adsorption behavior, while there a lack systematic generalizations desorption or combined effects organisms. Therefore, this article provides review mechanisms, biological tract. Desorption suggests that characteristics (aging hydrophobicity) components fluid (digestive enzyme species pH) can also have effect desorption. Moreover, summarizes induced MPs-antibiotics, demonstrating either enhance reduce plants, microorganisms, aquatic animals. Since methodological uniformity relevance natural environment main shortcomings existing literature, future research should focus actual water given region studying at gene, protein, metabolic levels. This direction expected provide valuable references insights evaluating antibiotics.

Language: Английский

---

Size-dependent ecotoxicological impacts of tire wear particles on zebrafish physiology and gut microbiota: implications for aquatic ecosystem health

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 487, P. 137215 - 137215

Published: Jan. 16, 2025

Language: Английский

---

Polystyrene microplastics attenuated the impact of perfluorobutanoic acid on Chlorella sorokiniana: Hetero-aggregation, bioavailability, physiology, and transcriptomics

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 488, P. 137344 - 137344

Published: Jan. 25, 2025

Language: Английский

---

Short-term and long-term effects of microplastics and organic UV-filters on the invertebrate model species Daphnia magna

Environmental Science and Pollution Research, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 1, 2025

There is an ongoing debate regarding the role of microplastics (MPs) in enhancing effects various chemical compounds, highlighting need for more detailed analyses. In this study, neonates water flea (Daphnia magna) were exposed to polystyrene MPs (PS-MPs; 3 µm; exposure concentration, 1.25 mg/L), a mixture seven organic UV-filters (avobenzone, ethylhexyl triazone, homosalate, iscotrizinol, octinoxate, octisalate, and octocrylene; each at low environmental concentration 200 ng/L), or combination both pollutants 3, 7, 21 days. Results showed that PS-MPs alone decreased body size daphnids, while all treatments increased heart rate by end 21-day exposure. On days 21, + reduced swimming speed total distance travelled. Additionally, time first egg production, but number number, maximum neonate during treatment. Similarly, combined production number. All multixenobiotic resistance activity on only elevated CYP450 day 3. GST early no effect 21. CAT was also affected time-dependent manner. These findings demonstrate chronic UV-filters, applied individually moderately impacts development, rate, D. magna, significantly altering reproduction key cellular functions such as membrane transport activity, metabolism, antioxidant defense. Co-exposure did not reveal clear pattern synergism antagonism, suggesting joint toxicity risks these xenobiotics typically emerge concentrations higher than levels. Future studies should explore potential interactions thoroughly assess transgenerational defense pathways.

Language: Английский

---

Effects of Sub-Chronic Exposure to Polystyrene Nanoplastics on Lipid and Antioxidant Metabolism in Sparus aurata

Animals, Journal Year: 2025, Volume and Issue: 15(4), P. 562 - 562

Published: Feb. 14, 2025

Nanoplastics (NPs) can cross cellular membranes and affect performance. This study aims to determine the effects of polystyrene NPs (PS-NPs, 44 nm) on gilthead seabream (Sparus aurata) exposed for 14 days 100 μg/L PS-NPs. The results show that biometric indicators (weight, length, Fulton's condition factor, hepatosomatic index) were not affected after experimental exposures. No significant observed white blood cell count, red mean corpuscular hemoglobin, or platelets compared control group. However, there was a decrease in hemoglobin concentration, hematocrit values, volume fish There no plasmatic cholesterol, triglyceride, alkaline phosphatase, aspartate aminotransferase levels. histological anatomy both gills intestine revealed obvious signs damage, excessive mucous, inflammation PS-NP expression transcripts related lipid metabolism (pparα, pparβ), growth development (igf1), detoxification (bche), oxidative stress (sod, gpx1) significantly downregulated animals PS-NPs, indicating slight impairment homeostasis antioxidant response.

Language: Английский

---

Impacts of Environmental Concentrations of Nanoplastics on Zebrafish Neurobehavior and Reproductive Toxicity

Toxics, Journal Year: 2024, Volume and Issue: 12(8), P. 617 - 617

Published: Aug. 21, 2024

Nanoplastics, as emerging environmental pollutants, can transport contaminants across marine environments, polluting pristine ecosystems and being ingested by organisms. This transfer poses a severe threat to global aquatic potentially impacts human health through the food chain. Neurobehavioral reproductive toxicity are critical areas of concern because they directly affect survival, health, population dynamics species, which have cascading effects on entire ecosystem. Using zebrafish model organism, we investigated toxic concentrations polystyrene nanoplastics (PS-NPs). Behavioral assessments, including novel tank test open field test, demonstrated significant neurobehavioral changes, indicating increased anxiety depressive behaviors. A pathological analysis brain gonadal tissues, along with evaluations biomarkers, revealed that exposure PS-NPs leads tissue lesions, inflammatory responses, oxidative stress activation, hormone level disruptions, damage. Real-time quantitative PCR studies gene expression further showed disrupt endocrine regulation pathways brain-pituitary-gonadal (BPG) axis, causing sex-specific differences. These findings provide crucial insights into organisms their ecological risks, offering theoretical support for future protection pollutant management efforts.

Language: Английский

---

Size-dependent dynamics and tissue-specific distribution of nano-plastics in Danio rerio: Accumulation and depuration

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 484, P. 136775 - 136775

Published: Dec. 4, 2024

Language: Английский

---

Toxic effects of exposure to Polymethyl methacrylate and polyvinyl chloride microplastics in Pacific oysters (Crassostrea gigas)

Environmental Pollution, Journal Year: 2024, Volume and Issue: unknown, P. 125484 - 125484

Published: Dec. 1, 2024

Language: Английский

---

Estimation of the uptake of polycyclic aromatic hydrocarbons desorbed from polyethylene microplastics in the digestive tract of the red seabream (Pagrus major) and mummichog (Fundulus heteroclitus)

Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 209, P. 117216 - 117216

Published: Nov. 9, 2024

Language: Английский

---