The Antibacterial and Immunomodulatory Effect of Zinc-Oxide Nanoparticles on Pseudomonas aeruginosa Infected Fresh-Water Fish | ||||
| Suez Canal Veterinary Medical Journal. SCVMJ | ||||
| Article 12, Volume 28, Issue 2, December 2023, Page 403-416 PDF (1.1 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/scvmj.2023.320242 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
Eman Eldemerdash1; Waleed Khalil 2; Nada Fayez Mehessen  3; Abdel-Fattah Mohamed Abdel-Fattah2
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| 1Free Veterinarian | ||||
| 2Pharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egypt | ||||
| 3AssiPharmacology Department, Faculty of Veterinary Medicine, Suez Canal University, Ismailia, 41522, Egyptstant Lecturer of Pharmacology | ||||
| Abstract | ||||
| In recent decades, Zinc oxide nanoparticles (ZnONPs) are already used in several fields either for commercial or industrial purposes. In this study, 120 freshwater fish (Oreochromis niloticus) were divided into 4 different groups, each in triplicate groups (n=10), and used to assess the pharmacological activity of ZnONPs as an anti-bacterial and immunomodulatory agent. Initially, the antibacterial activity was detected in-vitro through the disk diffusion method. The results revealed a potent antibacterial activity, especially at 80 mg/kg of ZnONPs. Then, Pathogenicity test with pseudomonas aeruginosa was done. The clinical signs following the infection were also detected and the mortality rate was calculated. Administration of ZnONPs (80mg/kg) showed potent ability to protect the fish from mortality induced by I/P injection of P. aeruginosa. Finally,blood samples were collected twice, on the 20th and 40th days, to detect the effect of ZnONPs on some immune parameters including granulocyte, monocytes, lymphocytes and white blood cells (WBCs) count. The oral administration of both ZnONPs and zinc acetate resulted in a significant increase in lymphocyte, monocyte and WBCs count from the 20th to 40th days in infected tilapia. In contrast, the results of granulocyte count revealed that the counts decreased from 20th to 40th days in groups exposed to 80mg/kg ZnO NPs. In conclusion, ZnO-NPs showed significant antibacterial activity against P. aeruginosa-infected tilapia fish either in-vitro or in-vivo as well as elevated the immunity of the fish against P. aeruginosa infection. | ||||
| Keywords | ||||
| Antibacterial; Immunity; Nile Tilapia; Oreochromis niloticus; Pseudomonas aeruginosa | ||||
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