Microplastic hotspots mapped across the Southern Ocean reveal areas of potential ecological impact DOI Creative Commons
Aidan Hunter, Sally Thorpe, Arlie H. McCarthy

et al.

Scientific Reports, Journal Year: 2024, Volume and Issue: 14(1)

Published: Dec. 30, 2024

Marine microplastic is pervasive, polluting the remotest ecosystems including Southern Ocean. Since this region already undergoing climatic changes, additional stress of pollution on ecosystem should not be considered in isolation. We identify potential hotspot areas ecological impact from a spatial overlap analysis multiple data sets to understand where marine biota are likely interact with local emissions (from ship traffic and human populations associated scientific research tourism). Then we account for cumulative effects by identifying which elevated microplastic-biota interaction subject climate change related stresses (ocean warming acidification). Our indicates that biologically productive coastal proximity populated facilities microplastics pose most risk ecosystem, northern Antarctic Peninsula main hotspot. This study first map threat Ocean multi-stressor context, locating monitoring programmes mitigation measures may matter urgency.

Language: Английский

Focused Study on Metal Allocation Patterns in Usnea Antarctica Lichen from James Ross Island DOI

Petr Chrást,

Renata Komendová, Miloš Barták

et al.

Published: Jan. 1, 2025

Language: Английский

Citations

0
Microplastic contamination and biological alterations in Atlantic wild fish populations, and human health risks associated to fillet consumption DOI Creative Commons
Sara Couto Lourenço, Alexandre Aleluia, Luís Gabriel A. Barboza

et al.

Marine Environmental Research, Journal Year: 2025, Volume and Issue: 208, P. 107139 - 107139

Published: April 12, 2025

Language: Английский

Citations

0
Mechanism of Nano‐Microplastics Exposure‐Induced Myocardial Fibrosis: DKK3‐Mediated Mitophagy Dysfunction and Pyroptosis DOI
Liang Xiong,

Ziyi Xiong,

Juan Hua

et al.

Journal of Biochemical and Molecular Toxicology, Journal Year: 2025, Volume and Issue: 39(5)

Published: April 22, 2025

ABSTRACT Nano‐microplastics (NMPs), as environmental pollutants, are widely present in nature and pose potential threats to biological health. This study aims investigate the mechanisms by which NMPs inhibit mitophagy through suppression of dickkopf‐related protein 3 (DKK3) expression, leading NOD‐like receptor family, pyrin domain containing (NLRP3) inflammasome‐mediated cardiomyocyte pyroptosis promoting myocardial fibrosis. Healthy adult male C57BL/6 mice were administered NMP solution via gavage, their cardiac function was monitored. The results showed that exposure significantly reduced left ventricular ejection fraction (LVEF) fractional shortening (LVFS) increased extent Transcriptome sequencing identified 14 differentially expressed genes (DEGs), including MYL7. Using random forest algorithm functional enrichment analysis, DKK3 a key gene. In Vitro experiments further confirmed downregulate thereby inhibiting pyroptosis. elucidates molecular induce fibrosis provides new theoretical bases targets for diagnosis treatment heart diseases.

Language: Английский

Citations

0
Microbial Biofilm Colonizing Plastic Substrates in the Ross Sea (Antarctica): First Overview of Community-Level Physiological Profiles DOI Creative Commons
Gabriella Caruso, Giovanna Maimone, Alessandro Ciro Rappazzo

et al.

Journal of Marine Science and Engineering, Journal Year: 2023, Volume and Issue: 11(7), P. 1317 - 1317

Published: June 28, 2023

The microbial colonization of plastic substrates made polyvinylchloride (PVC) and polyethylene (PE) was studied in Tethys Road Bays (Ross Sea, Antarctica) order to evaluate the metabolic profiles plastisphere community comparison with those surrounding waters. PVC PE panels, mounted on stainless steel structures, were deployed austral summer 2017 at 5 20 m recovered one year later four different stations (Amorphous Glacier-AG potentially impacted by ice-melting process, its control site within Bay-TB; Bay-RB, close wastewater plant Italian research station Mario Zucchelli Punta Stocchino-PTS). Additional panels settled Bay after three months follow time variability process. At same times depths as substrates, water samples also collected. Carbon substrates’ utilization rates determined scraped biofilm samples, a fluorimetric assay based 96-well Biolog Ecoplates. Complex carbon sources, carbohydrate amines organic that mostly fuelled metabolism RB area, while TB addition carbohydrates, phosphate compounds amino acids actively utilized. Within Bay, small differences physiological found, higher 3 months’ deployment (late period) compared 12 months, suggesting autumn spring period conditions negatively affected foulers’ metabolism. Moreover, between pelagic observed; this last utilized number colonized more specialized community. Higher substrate recorded AG stations, receiving supply from anthropic activity or ice melting respectively, their sites. These results highlighted functional plasticity community, adaptive ability utilize diversified range substrates.

Language: Английский

Citations

9
Edible Coatings and Films for Preparation of Grapevine By-Product Infusions and in Freshly Processed Products DOI Open Access
Teresa Pinto, A.F. Pinto, Alice Vilela

et al.

Coatings, Journal Year: 2023, Volume and Issue: 13(8), P. 1350 - 1350

Published: Aug. 1, 2023

The wine industry is responsible for a considerable part of environmental problems because the large amounts residues. However, several studies have shown these residues, such as grapes, skins, seeds, and leaves, represent complex matrix bio-compounds, phenolic compounds, flavonoids, procyanidins, anthocyanins, tannins, catechin, quercetin, kaempferol, trans-resveratrol, nutrients vitamin C. These vine by-products or their extracts antioxidant, anti-inflammatory, cardioprotective, anti-aging, anti-cancer activities, which benefit human health. Due to processing (drying, mincing), some are perishable may present short shelf-life. production developed products can be achieved by using edible films coatings. use coatings an innovative method preservation in postharvest. This technique gaining popularity since it easy apply, environmentally friendly, highly efficient. Indeed, application layers on lightly processed foods preserve essential protect them from attack microorganisms addition preserving appearance maintaining original color, flavor, texture. More research must carried out optimize coating formulations achieve highest possible quality. review aims elucidate techniques making different types that used preparation grape drinks, namely grapevine infusions made with dried minced pomaces, freshly products. Besides usually materials, chitosan, agar-agar, gelatin, alginate, other compounds will also discussed, guar gum, soy lecithin, maltodextrin, inulin, propolis.

Language: Английский

Citations

8
Impact of heavy metals (Cu, Fe, Pb, Zn) on carbon and nitrogen uptake of the diatom-bearing benthic foraminifera Heterostegina depressa DOI Creative Commons

Mario Bubl,

Petra Heinz, Wolfgang Wanek

et al.

Heliyon, Journal Year: 2024, Volume and Issue: 10(6), P. e27229 - e27229

Published: March 1, 2024

Foraminifera are protists primarily living in benthic marine and estuarine environments. We studied uptake of inorganic carbon (C) nitrogen (N) the photosymbiont-bearing coral reef foraminifera Heterostegina depressa presence heavy metals.Incubation experiments were accomplished with artificial seawater enriched copper, iron, lead zinc at two different concentration levels (10 100 fold contrast to usual culture medium). Additionally, isotopically labelled 13C-sodium bicarbonate 15N-ammonium chloride added trace their assimilation over time (1 d, 3 5 7 d). Pulse-amplified modulated fluorescence measurements performed measure potential impacts metals on chlorophyll photosymbiont. Increased copper (430.5 μg Cu/l) exhibited greatest toxicity, while for low no effect overall metabolism activity photosymbiont could be detected. Iron (III) increased symbiont activity, independent applied (44.5 513.3 Fe/l), which indicates Fe-limitation algal symbiont. Lead enrichment showed detectable even high concentration. Low concentrations (35.1 Zn/l) promoted foraminifera, (598.4 toxic. At levels, (Fe Zn) iron still boosted photosynthesis, but Zn Cu had a negative impact obligatory photosynthetic symbionts.

Language: Английский

Citations

2
Mediterranean Marine Mammals: Possible Future Trends and Threats Due to Mercury Contamination and Interaction with Other Environmental Stressors DOI Creative Commons
Roberto Bargagli, Emilia Rota

Animals, Journal Year: 2024, Volume and Issue: 14(16), P. 2386 - 2386

Published: Aug. 17, 2024

Despite decreasing anthropogenic mercury (Hg) emissions in Europe and the banning restriction of many persistent organic pollutants (POPs) under Stockholm Convention, Mediterranean marine mammals still have one highest body burdens world. Moreover, basin is most sensitive to climate change, with likely changes biogeochemical cycle bioavailability Hg, primary productivity, length composition pelagic food webs. The availability resources for also affected by widespread overfishing increasing number alien species colonizing basin. After reporting recent findings on Hg Sea physico-chemical bio-ecological factors determining its exceptional bioaccumulation odontocetes, this review discusses possible future metal. Recent ocean-atmosphere-land models predict that mid-latitude seas, water warming (which 20% faster than global average) decrease solubility favor escape metal atmosphere. However, has been thousands years natural inputs metals change sea level rise (3.6 ± 0.3 mm year

Language: Английский

Citations

2
Environmental Health Risk of Microplastics Due to Consumption of Fish and Shellfish in the Coastal Area DOI Creative Commons
Anwar Daud,

Hasanuddin Ishak,

Erniwati Ibrahim

et al.

Iranian Journal of Public Health, Journal Year: 2024, Volume and Issue: unknown

Published: July 13, 2024

Background: The increasing accumulation of plastic waste is the most serious threat to marine ecosystem. People who still have habit disposing solid waste, especially plastic-type in environment led discovery microplastic content various biota such as fish and shellfish. We aimed assess environmental health risks microplastics due consumption life coastal area. Methods: used an observational method with Environmental Health Risk Assessment (EHRA) design analyze humans consuming shellfish containing microplastics. This research was conducted area ​​Takalar Regency, Indonesia 2022. samples consisted human (n = 30) (fish, n=20; shellfish, n=20) samples. data were obtained from observations, physical measurements biota, laboratory tests, polymer type identification by Fourier Transform Infrared (FTIR) spectroscopy, microscopy. Results: average concentration styrene compounds 2.01 mg/kg. abundance MPs 0.01 particles/g or 10 particles/kg 7 particles/individual found line, fragment, film, pellet forms, different size color variations. exposure risk level (RQ value) for both 0.02. Conclusion: All had RQ values < 1, which means that microplastic-containing tofu safe people living Takalar

Language: Английский

Citations

1
Experimental ingestion of microplastics in three common Antarctic benthic species DOI Creative Commons
Mariona Gonzalez-Pineda, Conxita Àvila, Gissell Lacerot

et al.

Marine Environmental Research, Journal Year: 2024, Volume and Issue: 204, P. 106879 - 106879

Published: Nov. 28, 2024

Language: Английский

Citations

1
Plastics and Five Heavy Metals from Sea Beaches: A Geographical Synthesis of the Literary Information DOI Creative Commons
Anna V. Mikhailenko, Dmitry A. Ruban

Journal of Marine Science and Engineering, Journal Year: 2023, Volume and Issue: 11(3), P. 626 - 626

Published: March 16, 2023

Pollution of the oceans and seas, as well their coastal zones, with plastics has become serious challenge, which is also related to Anthropocene marine geology geochemistry. Notably, can bear heavy metals. The knowledge scattered through scientific publications, and, thus, it needs generalization. present study synthesizes published information about geographical distribution cadmium, chromium, mercury, nickel, zinc associated on sea beaches. A bibliographical survey undertaken, collected literary organized so document principal localities beached bearing these About twenty are established in many parts world, majority them correspond coasts Atlantic Indian seas. Significant attention been paid by previous researchers Northwest Europe South East Asia. available enough postulate global extent problem metals association Real or potential risks environment were reported cases. This review shows that industry tourism, hospitality, recreation contributes accumulation such plastics. analyzed demonstrates several biases: for instance, Hg-bearing beaches from smaller number relatively other metals, recreational areas regions yet be studied regard

Language: Английский

Citations

2