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20 resultsShowing papers similar to Two genes related to reproductive development in the juvenile prawn, Macrobrachium nipponense: Molecular characterization and transcriptional response to nanoplastic exposure
ClearPolystyrene nanoplastics decrease nutrient accumulation, disturb sex hormones, and inhibit reproductive development in juvenile Macrobrachium nipponense
Researchers exposed juvenile oriental river prawns to polystyrene nanoplastics at various concentrations for 28 days and observed significant disruptions to their reproductive development. The nanoplastics reduced nutrient accumulation, altered sex hormone levels, and interfered with genes involved in gonad development. The study suggests that nanoplastic pollution in waterways could impair the reproductive health of crustacean species.
Two genes related to apoptosis in the hepatopancreas of juvenile prawn, Macrobrachium nipponense: Molecular characterization and transcriptional response to nanoplastic exposure
Researchers identified and characterized two apoptosis-related genes in juvenile prawns exposed to polystyrene nanoplastics, finding that nanoplastic exposure induced significant apoptotic responses in hepatopancreas tissue in a concentration-dependent manner.
Effects of nanoplastics on antioxidant and immune enzyme activities and related gene expression in juvenile Macrobrachium nipponense
Researchers explored the effects of nanoplastics on survival, antioxidant activity, immune enzyme activity, and gene expression in juvenile oriental river prawns. The study found that increasing nanoplastic concentrations suppressed antioxidant and immune enzyme activities while altering related gene expression levels, indicating that nanoplastic exposure can compromise the defense systems of freshwater crustaceans.
Change in energy-consuming strategy, nucleolar metabolism and physical defense in Macrobrachium rosenbergii after acute and chronic polystyrene nanoparticles exposure
Researchers examined how polystyrene nanoplastic exposure affects freshwater prawns over both short-term and long-term periods, finding significant changes in gene expression related to energy metabolism and physical defense. The study revealed that nanoplastic exposure disrupted nucleolar metabolism and triggered shifts in energy-consuming strategies, suggesting these particles pose a meaningful threat to aquatic crustaceans.
Polystyrene nanoplastics decrease molting and induce oxidative stress in adult Macrobrachium nipponense
Researchers found that polystyrene nanoplastics significantly decreased molting frequency and induced oxidative stress in adult freshwater prawns, with effects on antioxidant enzyme activities observed at environmentally relevant concentrations.
Effects of nanoplastics on energy metabolism in the oriental river prawn (Macrobrachium nipponense)
Oriental river prawns exposed to polystyrene nanoplastics (5–40 mg/L) for up to 28 days showed concentration- and time-dependent decreases in survival and energy metabolism, including disrupted glycogen and triglyceride content, reduced metabolic enzyme activity, and altered gene expression of energy pathways.
Molecular characterization and transcriptional response to TiO2–GO nanomaterial exposure of two molt-related genes in the juvenile prawn, Macrobrachium rosenbergii
Researchers studied how exposure to titanium dioxide-graphene oxide nanoparticles — materials used in industrial water treatment — disrupts the expression of two genes that control molting in freshwater prawns. Suppressing these molt-regulating genes could impair growth in crustaceans, raising concerns about the ecological impact of engineered nanomaterials entering aquatic environments.
Effects of nanoplastic exposure on the growth performance and molecular characterization of growth-associated genes in juvenile Macrobrachium nipponense
Researchers found that polystyrene nanoplastic exposure impaired growth in juvenile shrimp by damaging the hepatopancreas, disrupting digestive enzyme activity, and altering growth-related gene expression at concentrations above 10 mg/L.
Toxicokinetics of microplastics in Macrobrachium nipponense and their impact on the bioavailability of loaded pollutants
Researchers studied the toxicokinetics of microplastics in the freshwater prawn Macrobrachium nipponense, tracking uptake, distribution, and clearance across tissues and examining impacts on antioxidant defenses and immune function.
Effects of nanoplastic on cell apoptosis and ion regulation in the gills of Macrobrachium nipponense
Researchers exposed juvenile oriental river shrimp to varying concentrations of nanoplastics and examined effects on gill cell viability and ion regulation. They found that higher nanoplastic concentrations increased cell death rates, decreased ion content, reduced ATPase enzyme activity, and disrupted ion transport gene expression in gill tissues. The study suggests that nanoplastic pollution can impair critical ion regulation functions in freshwater crustaceans, with implications for aquaculture.
Transcriptomic analysis following polystyrene nanoplastic stress in the Pacific white shrimp, Litopenaeus vannamei
Researchers used transcriptomic analysis to study how polystyrene nanoplastics affect gene expression in Pacific white shrimp. They found that nanoplastic exposure activated lysosome pathways and disrupted genes involved in immune response, protein processing, and metabolism. The study provides molecular-level evidence that nanoplastics can interfere with multiple biological systems in commercially important shrimp species.
Decoding the molecular concerto: Toxicotranscriptomic evaluation of microplastic and nanoplastic impacts on aquatic organisms
This review summarizes existing research on how microplastics and nanoplastics affect gene activity in aquatic organisms including fish, crustaceans, and mollusks. The studies show that these tiny particles disrupt genes involved in immune defense, stress response, reproduction, and metabolism. Understanding these molecular-level changes is important because they reveal how microplastics could cause long-term health problems in animals that enter the human food chain.
Chronic nanoplastic exposure induced oxidative and immune stress in medaka gonad
Researchers exposed medaka fish to nanoplastics at varying concentrations over an extended period and found significant oxidative stress and immune disruption in their reproductive organs. Higher concentrations led to tissue damage in the gonads and altered expression of genes related to inflammation and antioxidant defense. The study suggests that chronic, low-level nanoplastic exposure may affect fish reproductive health over time.
Chronic exposure to polystyrene microplastics at environmentally relevant concentration induced growth retardation in Macrobrachium rosenbergii via multi-pathway toxicity: Oxidative stress, microbial dysbiosis, and biodistribution
Researchers exposed juvenile freshwater prawns to environmentally relevant concentrations of polystyrene microplastics for 42 days and found significant growth inhibition, with a 15.6% reduction in body length and 29.6% decrease in body weight. The microplastics accumulated in gills, stomachs, intestines, and hemolymph, causing persistent mitochondrial damage, oxidative stress, and gut microbiota imbalance that did not fully recover even after the exposure ended.
Effects of Microplastics, Polystyrene, and Polyethylene on Antioxidants, Metabolic Enzymes, HSP-70, and Myostatin Expressions in the Giant River Prawn Macrobrachium rosenbergii: Impact on Survival and Growth
Researchers exposed juvenile giant river prawns (Macrobrachium rosenbergii) to polystyrene microspheres and polyethylene microparticles and found that both types reduced survival and growth while increasing oxidative stress markers and altering expression of heat shock proteins and myostatin, with polystyrene causing more severe effects.
Polystyrene nanoplastics induce apoptosis, histopathological damage, and glutathione metabolism disorder in the intestine of juvenile East Asian river prawns (Macrobrachium nipponense)
Researchers exposed juvenile East Asian river prawns to different concentrations of polystyrene nanoplastics for 28 days. They found that nanoplastic exposure caused intestinal cell death, tissue damage, and disrupted the glutathione antioxidant system in a dose-dependent manner. The study suggests that nanoplastic pollution in freshwater environments could significantly compromise the intestinal health and immune defenses of crustaceans.
Effects of microplastics on gene expression to nonspecific immune system in pacific white shrimp (Litopenaeus vannamei).
This study found that high-density polyethylene microplastic particles in shrimp feed suppressed immune defense genes in Pacific white shrimp and caused intestinal and gill tissue damage at concentrations well below lethal levels. The findings suggest that microplastic exposure could compromise immune function and health in farmed crustaceans.
Uptake and transcriptional effects of polystyrene microplastics in larval stages of the Mediterranean mussel Mytilus galloprovincialis
Researchers exposed larval stages of a marine organism to polystyrene microplastics and measured gene expression changes, finding tissue-dependent transcriptional responses that suggest microplastics can affect development even at early life stages.
Nanoplastics impact the zebrafish (Danio rerio) transcriptome: Associated developmental and neurobehavioral consequences
Researchers exposed developing zebrafish larvae to polystyrene nanoplastics of two sizes and found dose-dependent accumulation in tissues along with swimming hyperactivity, despite no effects on mortality or hatching. Transcriptomic analysis revealed changes in gene expression associated with neurodegeneration and motor dysfunction at both high and low concentrations. The study suggests that nanoplastic exposure during early development can alter brain function and behavior in ways that may reduce organismal fitness.
Transcriptional response in the whiteleg shrimp (Penaeus vannamei) to short-term microplastic exposure
Researchers exposed whiteleg shrimp (Penaeus vannamei) to microplastics for 96 hours and used transcriptomics to profile gene expression changes, finding significant upregulation of stress response, immune, and detoxification pathways, indicating that even short-term microplastic exposure triggers a broad molecular stress response.