Biological investigations on the freshwater snail Pirenella conica (Blainville, 1829) infected with the developmental stages of Heterophyes sp.

Rizk, El-Sayed T.; HAMADA, SHADIA; Abd-ElGhany, Sherif R.; Ramez, Amany M.

doi:10.1186/s41936-018-0016-8

Cited by 3 publications

(1 citation statement)

References 29 publications

(25 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Steroid hormones are important for gonad development in snails(Alon et al, 2007).The study found that infection with cercariae mansoni and haematobium caused a statistically signi cant increase in DNA fragmentation and migration in molluscan tissues compared to controls. This is consistent with other studies that have reported decreases in serotonin and dopamine concentrations in tissues during infection(Rizk et al, 2018), as well as DNA damage in Biomphalaria alexandrina homocytes(Mohamed, 2011) and hemocytes of infected Bulinus truncatus(Saad et al, 2013).…”

supporting

confidence: 93%

Impact of Schistosoma sp., infection on biological, behavioral, physiological, histological, and genotoxicological aspects of Biomphalaria alexandrina and Bulinus truncatus snails

Dokmak,

hamam,

ibrahim

2023

Preprint

View full text Add to dashboard Cite

Trematodes infection of genus Schistosoma can lead to physiological and behavioral changes in intermediate snail hosts. This is because the parasite consumes essential resources required for the host's survival, but the hosts can adaptively modify their behavior to ensure some level of fitness before parasite-induced mortality. The present study examined the reproductive and biochemical parameters of Biomphalaria alexandrina and Bulinus truncatus during the shedding stage of infection with Schistosoma mansoni and haematobium, respectively. The study found that the infection rate with S. mansoni was 34.7% and 30.4% with S. haematobium. In B.alexandrina infected with S. mansoni, a survival rate of 65.2% was recorded, along with a mean duration of shedding of 32.8 ± 5.5 days, a mean prepatent period of 37.5 ± 1.15 days, and a mean life span of 57.0 ± 1.21 days. Meanwhile, in B. truncatus infected with S. haematobium, a survival rate of 56.4% was recorded, with a mean duration of shedding of 42.6 ± 2.6 days, a mean prepatent period of 46.7 ± 2.3 days, and a mean life span of 65.9 ± 1.6 days. The feeding behavior was increased in the two infected species snail, while the net reproductive rate (Ro) of the infected species snails was reduced. Total antioxidant (TAO) and lipid peroxidation activity were increased in the two infected snails during shedding, while Glutathione-S-transferase was reduced. Lipid peroxidase (LPO) activity and nitrogen oxide (NO) levels decreased significantly in infected B. alexandrina and increased in infected Bulinus. Steroid hormone measurements were increased in the infected Biomphalaria, while they were reduced in infected Bulinus. Comet assay parameters were increased in the two infected genera after infection than control snails, and histopathological damage occurred. These observations demonstrated that infection initiates diverse biochemical, hormonal, genotoxic, and histopathological change to the tissues responsible for fecundity and reproduction in B. alexandrina and B. truncatus.

show abstract

supporting

confidence: 93%

Impact of Schistosoma sp., infection on biological, behavioral, physiological, histological, and genotoxicological aspects of Biomphalaria alexandrina and Bulinus truncatus snails

Dokmak,

hamam,

ibrahim

2023

Preprint

View full text Add to dashboard Cite

show abstract

Impact of Schistosoma sp., Infection on Biological, Feeding, Physiological, Histological, and Genotoxicological Aspects of Biomphalaria alexandrina and Bulinus truncatus Snails

Dokmak,

Hammam,

Ibrahim

2024

Acta Parasit.

View full text Add to dashboard Cite

Background Trematode infections of the genus Schistosoma can induce physiological and behavioral changes in intermediate snail hosts. This is because the parasite consumes essential resources necessary for the host's survival, prompting hosts to adapt their behavior to maintain some level of fitness before parasite-induced mortality occurs. Methods In this study, the reproductive and biochemical parameters of Biomphalaria alexandrina and Bulinus truncatus were examined during the cercareal shedding stage of infection with Schistosoma mansoni and Schistosoma haematobium, respectively, compared with controls. Results The study revealed an infection rate of 34.7% for S. mansoni and 30.4% for S. haematobium. In B. alexandrina infected with S. mansoni, a survival rate of 65.2% was recorded, along with a mean prepatent period of 30.3 ± 1.41 days, a mean shedding duration of 14.2 ± 0.16 days, and a mean lifespan of 44.1 ± 0.24 days. Meanwhile, in B. truncatus infected with S. haematobium, a survival rate of 56.4% was observed, with a mean prepatent period of 44.3 ± 1.41 days, a mean shedding duration of 22.6 ± 2.7 days, and a mean lifespan of 66.9 ± 1.6 days. Feeding increased in both infected species of snails, while the net reproductive rate (Ro) of the infected snails decreased. Total antioxidant (TAO) and lipid peroxidation activity increased in the two infected snail species during shedding, while Glutathione-S-transferase levels decreased. Lipid peroxidase activity and nitrogen oxide levels significantly decreased in infected B. alexandrina and increased in infected Bulinus. Steroid hormone levels were elevated in infected Biomphalaria, whereas they were reduced in infected Bulinus. Comet assay parameters showed an increase in the two infected genera after infection compared to control snails, indicating genotoxic damage and histopathological damage was observed. Conclusions These findings demonstrate that infection with larva species diverse biochemical, hormonal, genotoxic, and histopathological changes in the tissues responsible for fecundity and reproduction in B. alexandrina and B. truncates comparing with controls.

show abstract

Biochemical and apoptotic changes in the nervous and ovotestis tissues of Biomphalaria alexandrina following infection with Schistosoma mansoni

Habib

Ghoname

Ali

et al. 2020

Experimental Parasitology

View full text Add to dashboard Cite

Biological investigations on the freshwater snail Pirenella conica (Blainville, 1829) infected with the developmental stages of Heterophyes sp.

Cited by 3 publications

References 29 publications

Impact of Schistosoma sp., infection on biological, behavioral, physiological, histological, and genotoxicological aspects of Biomphalaria alexandrina and Bulinus truncatus snails

Impact of Schistosoma sp., infection on biological, behavioral, physiological, histological, and genotoxicological aspects of Biomphalaria alexandrina and Bulinus truncatus snails

Impact of Schistosoma sp., Infection on Biological, Feeding, Physiological, Histological, and Genotoxicological Aspects of Biomphalaria alexandrina and Bulinus truncatus Snails

Biochemical and apoptotic changes in the nervous and ovotestis tissues of Biomphalaria alexandrina following infection with Schistosoma mansoni

Contact Info

Product

Resources

About