Assessment of the antioxidant capacity of Lanistes carinatus tissue extract and its immune-boosting influence on Biomphalaria alexandrina against infection with Schistosoma mansoni

El-Karim, Rasha M. Gad

doi:10.21608/ejabf.2022.249977

Cited by 1 publication

(1 citation statement)

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“…These consequences are consistent with several studies that have demonstrated the effectiveness of snail hemocytes’ innate immune responses and their capacity to identify, cling to, encircle, and ultimately eradicate foreign objects and invasive parasites in a crucial defense-related process known as phagocytosis (Oliveira et al 2010; Gad El-Karim et al 2022).…”

Section: Discussionsupporting

confidence: 89%

Activities of pumpkin seed oil against Biomphalaria alexandrina snails and the infective stages of Schistosoma mansoni with special emphasis on genotoxic and histopathological alterations

Mohammed,

Mossalem,

Gad El-Karim

et al. 2024

J. Helminthol.

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Schistosomiasis is a serious health issue in tropical regions, and natural compounds have gained popularity in medical science. This study investigated the potential effects of pumpkin seed oil (PSO) on Biomphalaria [B.] alexandrina snails (Ehrenberg, 1831), Schistosoma [S.] mansoni (Sambon, 1907) miracidium, and cercariae. The chemical composition of PSO was determined using gas chromatography/mass spectrometry. A bioassay was performed to evaluate the effects of PSO on snails, miracidia, and cercariae. The results showed no significant mortality of B. alexandrina snails after exposure to PSO, but it caused morphological changes in their hemocytes at 1.0 mg/ml for 24 hours. PSO exhibited larvicidal activity against miracidia after 2 hours of exposure at a LC50 of 618.4 ppm. A significant increase in the mortality rate of miracidia was observed in a dose- and time-dependent manner, reaching a 100% death rate after 10 minutes at LC90 and 15 minutes at LC50 concentration. PSO also showed effective cercaricidal activity after 2 hours of exposure at a LC50 of 290.5 ppm. Histological examination revealed multiple pathological changes in the digestive and hermaphrodite glands. The PSO had genotoxic effects on snails, which exhibited a significant increase [p≤0.05] in comet parameters compared to the control. The findings suggest that PSO has potential as a molluscicide, miracidicide, and cercaricide, making it a possible alternative to traditional molluscicides in controlling schistosomiasis.

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Section: Discussionsupporting

confidence: 89%