Brain anatomy and Histology in Teleosts

Hussein, Mona N.; Cao, Xiaojuan

doi:10.21608/bvmj.2018.96440

Cited by 7 publications

(2 citation statements)

References 46 publications

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“…This may be due to the fact that the lipid content in the fish brain is remarkably high. The lipid content in the brain is the second highest after adipose tissue and contains essential fatty acids [ 29 ].…”

Section: Resultsmentioning

confidence: 99%

Optical coherence tomography as an alternative tool for evaluating the effects of glyphosate on hybrid catfish (Clarias gariepinus × Clarias macrocephalus)

2022

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Section: Resultsmentioning

confidence: 99%

Optical coherence tomography as an alternative tool for evaluating the effects of glyphosate on hybrid catfish (Clarias gariepinus × Clarias macrocephalus)

2022

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“…The CNS regulates all aspects of physiology, and its morphology is susceptible to damage from environmental pollutants. Anatomical and histological microstructures of the brain differ across species of fish, but the role of specific brain regions is relatively conserved across species ( Abdelnaeim Hussein and Cao, 2018 ). With MPs and NPs treatment, it was observed that carp treated at a concentration of 100 mg/L of macroplastics showed several histopathological changes, including necrosis, spongiosis, degeneration, and edema.…”

Section: Discussionmentioning

confidence: 99%

Neurotoxic effects of different sizes of plastics (nano, micro, and macro) on juvenile common carp (Cyprinus carpio)

Hamed

Martyniuk

Naguib

et al. 2022

Front. Mol. Neurosci.

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Using common carp as a model, we assessed the effects of polyethylene (PE) plastics on the brain. We measured activity of acetylcholinesterase (AChE), monoamine oxidase (MAO), and the content of nitric oxide (NO) in carp brain following exposure to 100 mg/L of either macroplastics (MaP), microplastics (MPs), or nanoplastic (NPs) for 15 days compared to an unexposed group. Following exposure, each biochemical biomarker was reduced 30–40%, with a higher magnitude of change corresponding to the smaller size of the particles (NPs > MPs > MaPs). In the carp tectum, exposure for 15 days to plastic particles caused varying degrees of necrosis, fibrosis, changes in blood capillaries, tissue detachment, edema, degenerated connective tissues, and necrosis in large cerebellar neurons and ganglion cells. In the carp retina, there was evidence for necrosis, degeneration, vacuolation, and curvature in the inner layer. Here we provide evidence that exposure to plastic particles can be associated with neurotoxicity in common carp.

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Histological Effect of Lead Chloride on The Brain of Gambusia Affinis

Al-Kshab

Taha

2021

J. Phys.: Conf. Ser.

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Heavy material pollution is one of the most critical threats to fish stocks around the world. Lead is one of the essential heavy elements that directly or indirectly affect fish. The purpose of this study is to investigate the effects of sublethal concentration of lead chloride PbCl2 on the brain of Gambusia affinis. For this purpose, 90 fish were used, which were divided into nine groups, each group containing ten fish. They divided into a control group, the acute treatment groups included four groups exposed to concentrations of 20 and 25 mg/L of PbCl2 for 24 and 96 hours, respectively. At the same time, the chronic treatment included four groups exposed to concentrations of 5 and 10 mg/L of PbCl2 for 15 and 30 days, respectively. The results showed that there were histological lesions that appeared in all the treated fish compared to the control group. These lesions appeared in different degrees of concentration and duration of use. Among the most prominent of these tissue changes that were repeated in the treatments were degeneration, vacuolar degeneration, necrosis, hemorrhage, congestion and oedema as well as disintegration between different brain tissues. The study concluded that lead chloride has a very harmful effect on brain tissues and that chronic exposure leads to irreversible histological lesions.

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Brain anatomy and Histology in Teleosts

Cited by 7 publications

References 46 publications

Optical coherence tomography as an alternative tool for evaluating the effects of glyphosate on hybrid catfish (Clarias gariepinus × Clarias macrocephalus)

Optical coherence tomography as an alternative tool for evaluating the effects of glyphosate on hybrid catfish (Clarias gariepinus × Clarias macrocephalus)

Neurotoxic effects of different sizes of plastics (nano, micro, and macro) on juvenile common carp (Cyprinus carpio)

Histological Effect of Lead Chloride on The Brain of Gambusia Affinis

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