Histological and Histochemical Effects of Microplastics Administration in Oreochromis niloticus Fingerlings
Ali, H., Gamal El-Dein, H., El-Kholy, K., Rady, M. (2023). Histological and Histochemical Effects of Microplastics Administration in Oreochromis niloticus Fingerlings. EKB Journal Management System, 15(2), 1-13. doi: 10.21608/eajbsd.2023.307640
Hanan, M. Ali; Hala M. Gamal El-Dein; Khaled F. El-Kholy; Mohamed I. Rady. "Histological and Histochemical Effects of Microplastics Administration in Oreochromis niloticus Fingerlings". EKB Journal Management System, 15, 2, 2023, 1-13. doi: 10.21608/eajbsd.2023.307640
Ali, H., Gamal El-Dein, H., El-Kholy, K., Rady, M. (2023). 'Histological and Histochemical Effects of Microplastics Administration in Oreochromis niloticus Fingerlings', EKB Journal Management System, 15(2), pp. 1-13. doi: 10.21608/eajbsd.2023.307640
Ali, H., Gamal El-Dein, H., El-Kholy, K., Rady, M. Histological and Histochemical Effects of Microplastics Administration in Oreochromis niloticus Fingerlings. EKB Journal Management System, 2023; 15(2): 1-13. doi: 10.21608/eajbsd.2023.307640

Histological and Histochemical Effects of Microplastics Administration in Oreochromis niloticus Fingerlings

Egyptian Academic Journal of Biological Sciences, D. Histology & Histochemistry
Volume 15, Issue 2, December 2023, Page 1-13  XML PDF (808.35 K)
Document Type: Original Article
DOI: 10.21608/eajbsd.2023.307640
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Authors
Hanan, M. Ali1; Hala M. Gamal El-Dein1; Khaled F. El-Kholy2; Mohamed I. Rady3
1Biological Sciences Department, Faculty of Home Economics, Girls, Al-Azhar University, Egypt.
2Animal Production Research Institute, Agricultural Research Center, Ministry of Agriculture and Land Reclamation, Egypt.
3Cytology and Histology Lab., Zoology Department, Faculty of Science, Al-Azhar University, Cairo, Egypt.
Abstract
Background: Plastics in the environment have provoked increasing worries in recent years, and recurrently, plastic waste is increasingly being discharged into water resources including rivers, where it breaks down into smaller particles. Objective: Investigate the histological and histochemical effects of two types of microplastics (MPs) in the gills, liver, and kidney of Nile tilapia (Oreochromis niloticus). Methods: The study included seven groups of O. niloticus fingerlings, the first was set as a control and the remainders were fed on a diet containing three different concentrations of two types of microplastics; namely low-density polyethylene (LD-PE) and polyethylene terephthalate (PET). Results: Chronic administration of MPs induced different histopathological lesions in fish gills, liver, and kidney. The prevailing histological changes in fish gills were hypertrophy, hyperplasia, lamellar aneurysm, and fusion of lamellae, while the liver showed hypertrophied hepatocytes, vacuolation, blood vessels congestion, karyolysis and pyknotic nuclear hepatocytes, necrotic cells, and hydropic degeneration. Meanwhile, the renal tissue of MPs-fed fishes delineated lymphocytic infiltration, degenerated renal tubules, obliteration in Bowman’s space, and necrotic areas. These lesions were more obvious with high concentrations of MPs, LD-PE, or PET. Histochemically, feeding of diets containing MPs induced significant depletion in each of glycogen and total protein contents of the liver, and kidney of experimental fishes as compared with control.
Keywords
Microplastics; O. niloticus; Histology; Histochemistry; Gills; Liver; Kidney
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