Investigating the effect of Scenedesmus acuminates algae extract on healing wounds infected with Staphylococcus aureus in a rat model

Subject Areas : Journal of Comparative Pathobiology

هومن  Akasheh, ¹ (Department of Clinical Science, Faculty of Specialized Veterinary Science, Science and Research Branch, Islamic Azad University, Tehran, Iran)
علیرضا  Jahandideh ² (Department of Clinical Science, Faculty of Specialized Veterinary Science, Science and Research Branch, Islamic Azad University, Tehran, Iran)
امیر اقبال  Khajerahimi ³ (Department of Food hygiene and Aquatic Animal Health Science, Faculty of Specialized Veterinary Science, Science and Research Branch, Islamic Azad University, Tehran, Iran)
شاپور  Kakoolaki ⁴ (Department of Aquatic Animal Health, Iranian Fisheries Research Organization, Tehran, Iran.)
سعید  Hesaraki ⁵ (Department of Pathobiology, Faculty of Specialized Veterinary Science, Science and Research Branch, Islamic Azad University, Tehran, Iran.)

Received: 2022-10-13 Accepted : 2023-01-01 Published : 2023-01-01

Keywords: Algae, Scenedesmus acuminatus, Wound Healing, Staphylococcus aureus, CD68,

Abstract :

The purpose of this study is to use a seaweed called Scenedesmus acuminates to reduce infection and heal wounds. Sixty rats were divided into four treatment groups, and sampling was done on the third, seventh, and fourteenth days after wound formation. No treatment was done on the first group, the control group. The second group was treated with 25% zinc oxide as the drug of choice. The third and fourth groups were treated with 3% and 7% Scenedesmus acuminates seaweed ointment. The back wounds of mice were infected with 50 microliters of 2x108 CFU/mL Staphylococcus containing suspension. Histopathology and immunohistochemistry (CD68) were performed to compare the number of macrophages on tissue samples. On the third day after wounding, macrophages (CD68) were present in the algae group by 7% more than in the other groups. On the seventh day, fibroplasia and collagen synthesis in the algae group was 7% better than in the other two groups. On the 14th day, the accumulation of new blood vessels in the algae was 7% more than the others. The best result regarding the CD68 (macrophage) molecule expression level was seen in the 7% algae group on the 7th and 14th days. On the third, seventh, and fourteenth days, when macrophages are helpful, algae groups were better than others. The use of algae ointment can reduce the bacterial load of the wound and is better than the administration of zinc oxide. 

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