Distribution and Impact of Microplastics in the Aquatic …
95
0.69 mg/L and mercury concentrations of 0.010 and 0.016 mg/L. Mercury accumulated in the brain and muscle, with significant interaction with MPs. In addition,
all the mixtures exposure to MP and mercury through the water caused notable
inhibition of brain acetylcholinesterase (AChE) activity by 64–76%, and substantial rise of lipid oxidation (LPO) levels to 2.9–3.4 folds in the brain and 2.2–2.9
folds in muscle. The investigation proved that MPs and mercury caused neurotoxicity through AChE inhibition, increased (LPO) in brain, muscle, and altered the
activities of enzymes of lactate dehydrogenase (LDH) and isocitrate dehydrogenase
(IDH). Overall, the study [96] has shown that MPs affect the bioaccumulation of
mercury by D. labrax juveniles; the combination of MPs and mercury in parts per
billion (ppb) concentrations can be a source for neurotoxicity, oxidative stress and
damage, and alterations of enzymes activities in juveniles species [96]. Similarly,
Qiao, Lu, et al. [79] evaluated the combined toxicity of MPs and organic matter
with copper (Cu) in zebrafish (Danio rerio). The study of [79] revealed small-size
MPs absorb extra Cu than large-size MPs. Further, the occurrence of organic matter
supported Cu adsorption on MPs in the 6–8 pH environments. Furthermore, it has
been demonstrated that the mixture of MPs and organic matter enhanced Cu accumulation in the liver and gut. Similarly, the outcomes of the study presented that
MPs and NOM exacerbate Cu-toxicity in the liver and gut. Consequently, the fish
demonstrated increased levels of malonaldehyde (MDA) and metallothionein (MT)
and decreased levels of superoxide dismutase (SOD). Additionally, the transcriptomic analysis suggested that the toxicity exacerbation was primarily ascribed to
the inhibition of Cu-ion transport and the higher oxidative stress [79]. Furthermore,
Khan et al. [97] analyzed the MP vector effect using in vitro gut sacs and determined
the intestinal destiny of combined effects of Ag and polyethylene MP beads. The
result showed Ag was accumulated in intestinal compartments and neither MP nor
Ag alone affects the trans-epithelial conveyance. However, the net result of the MP
vector results in toxin forms in the intestine [97]. Conversely, Besseling et al. [99]
studied the combined effects of PE and polychlorinated biphenyls (PCBs) transfer
to Lugworm Arenicola marina. The quantified uptake fluxes result revealed PE has
small effects on bioaccumulation and impacted feeding activity [98]. Furthermore,
Qu et al. [99] inspected the degree of chiral product behaviors of the antidepressant
venlafaxine and its metabolite in loach (Misgurnus anguillicaudatus) along with the
effects of MPs toxicity, spread, and metabolism through a 40-day co-exposure to
the loach. According to the study, MPs might be played a vector role to facilitate
venlafaxine and O-desmethylvenlafaxine accumulated by loach. The bioaccumulation factor (BAF) for venlafaxine and O-desmethylvenlafaxine in loach tissue intensified more than 10 folds due to MPs presence. As a result, MPs assisted the transfer
and bioaccumulation of pollutants to the liver causing delayed metabolism in an
organism [99]. Similarly, Syberg et al. [100] evaluated the combined effects of PE
microbeads (MP) and triclosan (TCS) in marine copepod Acartia tonsa (Dana). The
obtained data from the combined exposure of MP and hydrophobic organic (HOC)
indicated that MP enhances the toxicity of TCS [100].
Zhu et al. [101] studied the combined toxicity effects of triclosan (TCS) with
range polymers 74 mm PE, 74 mm PS, 74 mm PVC, and 1 mm PVC800 on marine
95
0.69 mg/L and mercury concentrations of 0.010 and 0.016 mg/L. Mercury accumulated in the brain and muscle, with significant interaction with MPs. In addition,
all the mixtures exposure to MP and mercury through the water caused notable
inhibition of brain acetylcholinesterase (AChE) activity by 64–76%, and substantial rise of lipid oxidation (LPO) levels to 2.9–3.4 folds in the brain and 2.2–2.9
folds in muscle. The investigation proved that MPs and mercury caused neurotoxicity through AChE inhibition, increased (LPO) in brain, muscle, and altered the
activities of enzymes of lactate dehydrogenase (LDH) and isocitrate dehydrogenase
(IDH). Overall, the study [96] has shown that MPs affect the bioaccumulation of
mercury by D. labrax juveniles; the combination of MPs and mercury in parts per
billion (ppb) concentrations can be a source for neurotoxicity, oxidative stress and
damage, and alterations of enzymes activities in juveniles species [96]. Similarly,
Qiao, Lu, et al. [79] evaluated the combined toxicity of MPs and organic matter
with copper (Cu) in zebrafish (Danio rerio). The study of [79] revealed small-size
MPs absorb extra Cu than large-size MPs. Further, the occurrence of organic matter
supported Cu adsorption on MPs in the 6–8 pH environments. Furthermore, it has
been demonstrated that the mixture of MPs and organic matter enhanced Cu accumulation in the liver and gut. Similarly, the outcomes of the study presented that
MPs and NOM exacerbate Cu-toxicity in the liver and gut. Consequently, the fish
demonstrated increased levels of malonaldehyde (MDA) and metallothionein (MT)
and decreased levels of superoxide dismutase (SOD). Additionally, the transcriptomic analysis suggested that the toxicity exacerbation was primarily ascribed to
the inhibition of Cu-ion transport and the higher oxidative stress [79]. Furthermore,
Khan et al. [97] analyzed the MP vector effect using in vitro gut sacs and determined
the intestinal destiny of combined effects of Ag and polyethylene MP beads. The
result showed Ag was accumulated in intestinal compartments and neither MP nor
Ag alone affects the trans-epithelial conveyance. However, the net result of the MP
vector results in toxin forms in the intestine [97]. Conversely, Besseling et al. [99]
studied the combined effects of PE and polychlorinated biphenyls (PCBs) transfer
to Lugworm Arenicola marina. The quantified uptake fluxes result revealed PE has
small effects on bioaccumulation and impacted feeding activity [98]. Furthermore,
Qu et al. [99] inspected the degree of chiral product behaviors of the antidepressant
venlafaxine and its metabolite in loach (Misgurnus anguillicaudatus) along with the
effects of MPs toxicity, spread, and metabolism through a 40-day co-exposure to
the loach. According to the study, MPs might be played a vector role to facilitate
venlafaxine and O-desmethylvenlafaxine accumulated by loach. The bioaccumulation factor (BAF) for venlafaxine and O-desmethylvenlafaxine in loach tissue intensified more than 10 folds due to MPs presence. As a result, MPs assisted the transfer
and bioaccumulation of pollutants to the liver causing delayed metabolism in an
organism [99]. Similarly, Syberg et al. [100] evaluated the combined effects of PE
microbeads (MP) and triclosan (TCS) in marine copepod Acartia tonsa (Dana). The
obtained data from the combined exposure of MP and hydrophobic organic (HOC)
indicated that MP enhances the toxicity of TCS [100].
Zhu et al. [101] studied the combined toxicity effects of triclosan (TCS) with
range polymers 74 mm PE, 74 mm PS, 74 mm PVC, and 1 mm PVC800 on marine